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Sample records for surgery video monitors

  1. Predictive factors for outcome of invasive video-EEG monitoring and subsequent resective surgery in patients with refractory epilepsy

    NARCIS (Netherlands)

    Carette, E.; Vonck, K.; de Herdt, V.; Van Dycke, A.; El Tahry, R.; Meurs, A.; Raedt, R.; Goossens, L.; Van Zanddijcke, M.; Van Maele, G.; Thadani, V.; Wadman, W.; van Roost, D.; Boon, P.

    2010-01-01

    Objective: This is a descriptive study of patients who underwent invasive video-EEG monitoring (IVEM) at Ghent University Hospital. The aim of the study is to identify predictive factors for outcome of IVEM and resective surgery (RS). These factors may optimize the patient flow following the non-inv

  2. Predictive factors for outcome of invasive video-EEG monitoring and subsequent resective surgery in patients with refractory epilepsy

    NARCIS (Netherlands)

    Carette, E.; Vonck, K.; de Herdt, V.; Van Dycke, A.; El Tahry, R.; Meurs, A.; Raedt, R.; Goossens, L.; Van Zanddijcke, M.; Van Maele, G.; Thadani, V.; Wadman, W.; van Roost, D.; Boon, P.

    2010-01-01

    Objective: This is a descriptive study of patients who underwent invasive video-EEG monitoring (IVEM) at Ghent University Hospital. The aim of the study is to identify predictive factors for outcome of IVEM and resective surgery (RS). These factors may optimize the patient flow following the

  3. Surgery Videos: MedlinePlus

    Science.gov (United States)

    ... Winston-Salem, NC, 1/15/2009) Weight Loss Surgery Laparoscopic Gastric Bypass Surgery (University of Miami Hospital ... Boston, Boston, MA, 6/08/2010) Weight Loss Surgery Laparoscopic Gastric Bypass Surgery (University of Miami Hospital ...

  4. Monitoring in microvascular surgery.

    Science.gov (United States)

    Furnas, H; Rosen, J M

    1991-03-01

    The importance of monitoring in microvascular surgery is underscored by the high reported salvage rates of failing free flaps and replants. In this overview, we begin by defining the physiology of ischemic tissue with emphasis given to the no-reflow phenomenon and the secondary critical ischemia times. Based on the physiological changes accompanying ischemia, several variables are defined that can be monitored to reflect the vascular state of a free flap or replant. Multifarious monitoring systems are then reviewed, including clinical observation, temperature, isotope clearance, ultrasonic Doppler, laser Doppler, transcutaneous oxygen tension, reflection plethysmography, dermofluorometry, pH, electromagnetic flowmetry, serial hematocrits, interstitial fluid pressure, and magnetic resonance imaging.

  5. Complete video-assisted thoracoscopic surgery for lung cancer in 400 patients

    National Research Council Canada - National Science Library

    Srisomboon, Chaisit; Koizumi, Kiyoshi; Haraguchi, Shuji; Mikami, Iwao; Iijima, Yoshihito; Shimizu, Kazuo

    2013-01-01

    Background We report the results of complete video-assisted thoracoscopic surgery for treatment of primary non-small cell lung cancer, which was performed completely through the monitor in 400 consecutive patients...

  6. Video assisted thoracic surgery in children

    Directory of Open Access Journals (Sweden)

    Shah Rasik

    2007-01-01

    Full Text Available Thoracoscopic surgery, i.e., video assisted thoracic surgery (VATS has been in use in children for last 98 years. Its use initially was restricted to the diagnostic purposes. However, with the improvement in the optics, better understanding of the physiology with CO2 insufflation, better capabilities in achieving the single lung ventilation and newer vessel sealing devices have rapidly expanded the spectrum of the indication of VATS. At present many complex lung resections, excision of mediastinal tumors are performed by VATS in the experienced centre. The VATS has become the standard of care in empyema, lung biopsy, Mediastinal Lymphnode biopsy, repair of diaphragmatic hernia, etc. The article discusses the indications of VATS, techniques to achieve the selective ventilation and surgical steps in the different surgical conditions in children.

  7. Challenges in pediatric video-EEG monitoring.

    Science.gov (United States)

    Sullivan, Joseph E; Corcoran-Donnelly, Maureen; Dlugos, Dennis J

    2007-06-01

    Video-EEG (VEEG) monitoring is now commonly used in children. When designing a pediatric video-EEG monitoring unit, there are many issues that need to be considered to take full advantage of this technology. Topics such as the physical layout of the VEEG unit, VEEG equipment, networking, staffing, and lines of communication regarding referrals and VEEG interpretation must be considered. Only after careful consideration of these issues, can video-EEG monitoring be successful and provide safe, state of the art clinical care in an efficient manner.

  8. Compression evaluation of surgery video recordings retaining diagnostic credibility (compression evaluation of surgery video)

    Science.gov (United States)

    Duplaga, M.; Leszczuk, M. I.; Papir, Z.; Przelaskowski, A.

    2008-12-01

    Wider dissemination of medical digital video libraries is affected by two correlated factors, resource effective content compression that directly influences its diagnostic credibility. It has been proved that it is possible to meet these contradictory requirements halfway for long-lasting and low motion surgery recordings at compression ratios close to 100 (bronchoscopic procedures were a case study investigated). As the main supporting assumption, it has been accepted that the content can be compressed as far as clinicians are not able to sense a loss of video diagnostic fidelity (a visually lossless compression). Different market codecs were inspected by means of the combined subjective and objective tests toward their usability in medical video libraries. Subjective tests involved a panel of clinicians who had to classify compressed bronchoscopic video content according to its quality under the bubble sort algorithm. For objective tests, two metrics (hybrid vector measure and hosaka Plots) were calculated frame by frame and averaged over a whole sequence.

  9. Video-Assisted Thoracic Surgery Study Group.

    Science.gov (United States)

    LoCicero, J

    1993-09-01

    Both patients and the medical profession are quick to embrace new technology, particularly when it may replace an existing surgical procedure. Unfortunately, the rapidity of acceptance is rarely associated with careful evaluation. Laparoscopy is a recent example of such widely embraced technology. Studies of laparoscopy that yielded good comparative data to more traditional methods were slow to accrue. This led to the exposure of its shortcomings through governmental reports and the lay press. To prevent this from happening in thoracoscopy, two types of studies are required so that valid conclusions about the new technology can be drawn. The first is an accounting of the new technology as procedures evolve around it. The data collected in such a study should contain basic information, including the indications for the procedure, how it was performed, procedure length, associated complications, and patient outcome. Such information provides a broad profile of the technology, emphasizing from the outset its potential strengths and weaknesses. The second type of study involves a more detailed concurrent comparison of the specific procedures utilizing this technology to the established traditional methods. Such randomized studies help to firmly establish through scientific process the place of the new technology. The Video-Assisted Thoracic Surgery Study Group was organized in early 1992 to address these concerns. From an initial four surgeons the group has grown to include more than 41 institutions. Currently the group is collecting data in a registry and has established three clinical trials to evaluate video-assisted thoracic surgery.(ABSTRACT TRUNCATED AT 250 WORDS)

  10. Lung cancer screening and video-assisted thoracic surgery

    DEFF Research Database (Denmark)

    Petersen, René Horsleben; Hansen, Henrik Jessen; Dirksen, Asger

    2012-01-01

    The objective of this study is to report the impact of computed tomography (CT) screening on the use of Video-Assisted Thoracic Surgery (VATS) in a randomized screening trial.......The objective of this study is to report the impact of computed tomography (CT) screening on the use of Video-Assisted Thoracic Surgery (VATS) in a randomized screening trial....

  11. COMPLICACIONES DE LA CIRUGÍA CARDÍACA VIDEO-ASISTIDA / Complications of video-assisted heart surgery

    Directory of Open Access Journals (Sweden)

    Fausto L. Rodríguez Salgueiro

    2012-01-01

    Full Text Available ResumenLa cirugía cardiovascular video-asistida incluye procedimientos extremadamente complejos, como la revascularización miocárdica y las sustituciones valvulares, no exentos de complicaciones fácilmente prevenibles y tratables. En este artículo se discuten las complicaciones de la cirugía cardíaca video-asistida, propias de la posición del paciente: respiratorias, cardiovasculares, quirúrgicas, infecciosas, entre otras. La cirugía cardíaca video-asistida brinda al paciente innumerables ventajas e implica un riesgo potencial de complicaciones evitables. El desarrollo de estos procedimientos es posible gracias a los adelantos tecnológicos y al diseño de nuevas técnicas anestésicas, ventilatorias, farmacológicas y de monitorización.AbstractThe video-assisted cardiac surgery includes extremely complex procedures such as myocardial revascularization and valve replacements, which are not exempt from easily preventable and treatable complications. In this article, the complications of video-assisted cardiac surgery, typical of patient positioning: respiratory, cardiovascular, surgical, infectious, among other complications, are discussed. The video-assisted cardiac surgery offers many advantages to the patient and involves a potential risk of avoidable complications. The development of these procedures is possible thanks to technological advances and the design of new anesthetic, ventilatory, pharmacologic and monitoring techniques.

  12. 3-D video techniques in endoscopic surgery.

    Science.gov (United States)

    Becker, H; Melzer, A; Schurr, M O; Buess, G

    1993-02-01

    Three-dimensional visualisation of the operative field is an important requisite for precise and fast handling of open surgical operations. Up to now it has only been possible to display a two-dimensional image on the monitor during endoscopic procedures. The increasing complexity of minimal invasive interventions requires endoscopic suturing and ligatures of larger vessels which are difficult to perform without the impression of space. Three-dimensional vision therefore may decrease the operative risk, accelerate interventions and widen the operative spectrum. In April 1992 a 3-D video system developed at the Nuclear Research Center Karlsruhe, Germany (IAI Institute) was applied in various animal experimental procedures and clinically in laparoscopic cholecystectomy. The system works with a single monitor and active high-speed shutter glasses. Our first trials with this new 3-D imaging system clearly showed a facilitation of complex surgical manoeuvres like mobilisation of organs, preparation in the deep space and suture techniques. The 3-D-system introduced in this article will enter the market in 1993 (Opticon Co., Karlsruhe, Germany.

  13. Fast-track video-assisted thoracoscopic surgery

    DEFF Research Database (Denmark)

    Holbek, Bo Laksafoss; Petersen, René Horsleben; Kehlet, Henrik

    2016-01-01

    Objectives To provide a short overview of fast-track video-assisted thoracoscopic surgery (VATS) and to identify areas requiring further research. Design A literature search was made using key words including: fast-track, enhanced recovery, video-assisted thoracoscopic surgery, robot......-assisted thoracoscopic surgery (RATS), robotic, thoracotomy, single-incision, uniportal, natural orifice transluminal endoscopic surgery (NOTES), chest tube, air-leak, digital drainage, pain management, analgesia, perioperative management, anaesthesia and non-intubated. References from articles were screened for further...

  14. Video-Assisted Thoracic Surgery in Spontaneous Pneumothorax

    Directory of Open Access Journals (Sweden)

    Calvin SH Ng

    2002-01-01

    Full Text Available The proven safety and efficacy of minimal access video-assisted thoracic surgery has changed the way that spontaneous pneumothorax is managed. This review presents some of the experiences of the decade, discusses the controversies and reviews the current video-assisted thoracic surgical management of spontaneous pneumothorax.

  15. Ergonomic problems encountered during video-assisted thoracic surgery.

    Science.gov (United States)

    Kranenburg; Gossot

    2004-06-01

    In laparoscopic surgery, the way of thinking about operating room design is beginning to include ergonomic requirements. No study has yet been published about ergonomic concerns in Video-Assisted Thoracic Surgery (VATS). The aim of this paper is to describe ergonomic issues encountered in VATS and to propose recommendations for operating room design for thoracoscopic surgery. To obtain an inventory of the ergonomic problems fifteen thoracoscopic operations were attended at the Institut Mutualiste Montsouris (Paris, France). Ergonomics can be divided into three divisions: physical, perceptual and cognitive ergonomics. During the observations of thoracoscopic operations the physical problems were registered. The perceptual and cognitive problems were obtained from a literature study. In general two different positions of the surgeon can be distinguished, depending on the placement of the trocars and the endoscope. One position resembles the body position during laparoscopy, involving the same problems such as fatigue of the legs, a static body position, a large working area, extreme movements of the upper limbs and the wrist and stiffness of the neck. The other position is specific for VATS resulting in a rotated upper body while the surgeon has to lean over the patient to be able to handle the instruments. This awkward position causes even more serious problems. The study resulted in a list of ergonomic problems encountered during VATS. Reorganisation of the operating room set-up and monitor position, design of a dedicated operating table and specific instruments might help to overcome the current ergonomic problems.

  16. Content-based retrieval in videos from laparoscopic surgery

    Science.gov (United States)

    Schoeffmann, Klaus; Beecks, Christian; Lux, Mathias; Uysal, Merih Seran; Seidl, Thomas

    2016-03-01

    In the field of medical endoscopy more and more surgeons are changing over to record and store videos of their endoscopic procedures for long-term archival. These endoscopic videos are a good source of information for explanations to patients and follow-up operations. As the endoscope is the "eye of the surgeon", the video shows the same information the surgeon has seen during the operation, and can describe the situation inside the patient much more precisely than an operation report would do. Recorded endoscopic videos can also be used for training young surgeons and in some countries the long-term archival of video recordings from endoscopic procedures is even enforced by law. A major challenge, however, is to efficiently access these very large video archives for later purposes. One problem, for example, is to locate specific images in the videos that show important situations, which are additionally captured as static images during the procedure. This work addresses this problem and focuses on contentbased video retrieval in data from laparoscopic surgery. We propose to use feature signatures, which can appropriately and concisely describe the content of laparoscopic images, and show that by using this content descriptor with an appropriate metric, we are able to efficiently perform content-based retrieval in laparoscopic videos. In a dataset with 600 captured static images from 33 hours recordings, we are able to find the correct video segment for more than 88% of these images.

  17. A new method for wireless video monitoring of bird nests

    Science.gov (United States)

    David I. King; Richard M. DeGraaf; Paul J. Champlin; Tracey B. Champlin

    2001-01-01

    Video monitoring of active bird nests is gaining popularity among researchers because it eliminates many of the biases associated with reliance on incidental observations of predation events or use of artificial nests, but the expense of video systems may be prohibitive. Also, the range and efficiency of current video monitoring systems may be limited by the need to...

  18. Endoscope- and video-assisted endodontic surgery.

    Science.gov (United States)

    von Arx, Thomas; Hunenbart, Stefan; Buser, Daniel

    2002-04-01

    Since the introduction of microsurgical principles in the 1990s, the field of endodontic surgery has made continuous and substantial progress. Particularly, root-end cavity preparation has been simplified and optimized by means of newly developed surgical microinstruments. However, the successful outcome of endodontic surgery depends to a large extent on accurate intraoperative diagnostics. Conventionally, micromirrors (retromirrors) and microprobes have been used for this purpose. Recently, the surgical microscope has been used to enhance visibility during dental procedures. In addition, endoscopy has been reported to provide the surgeon with outstanding vision and ease of use. This article describes the technical specifications and the diagnostic application of the endoscope during endodontic surgery.

  19. A High-Definition Video Teaching Module for Thyroidectomy Surgery.

    Science.gov (United States)

    Hamour, Amr F; Mendez, Adrian I; Harris, Jeffrey R; Biron, Vincent L; Seikaly, Hadi; Côté, David W J

    2017-08-02

    With the changing landscape of postgraduate surgical education to competency-based curricula, there emerges a need for alternative forms of training. Video teaching modules have been shown to be effective tools in surgical education, complementing traditional postgraduate curricula. There is a lack of validated modules described in the literature, specifically for teaching thyroidectomy. The primary objective of this study was to develop and validate a high definition video-based teaching module instructing thyroidectomy surgery to Otolaryngology-Head and Neck Surgery trainees. This prospective study included intermediate to senior Otolaryngology-Head and Neck Surgery residents. Each participant first performed a thyroid lobectomy, serving as the initial assessment. After a washout period of at least 3 weeks, each participant was given the teaching module. The 15-minute module was developed using a 3-camera system and detailed a step-by-step approach to the surgery. After exposure to the module, each trainee performed the same procedure. Recordings of both procedures were deidentified and reviewed by a blinded, independent evaluator. Scoring was done using the Observational Clinical Human Reliability Assessment (OCHRA) system. University of Alberta Hospital and Royal Alexandra Hospital, Edmonton, Alberta, Canada. A total of 6 intermediate to senior Otolaryngology-Head and Neck Surgery residents entered and completed the study. The mean error rate was 8.8 errors per procedure before module exposure and 4.5 errors per procedure after exposure, representing a 49% decrease in error occurrence (p video teaching modules are a useful complement to traditional surgical training. In a climate where new innovations for teaching thyroid surgery are needed, properly constructed and validated video teaching modules can serve as important tools in supplementing traditional surgical training. Copyright © 2017 Association of Program Directors in Surgery. Published by Elsevier Inc

  20. Video-assisted pericardial fenestration for effusions after cardiac surgery.

    Science.gov (United States)

    Georghiou, Georgios P; Porat, Eyal; Fuks, Avi; Vidne, Bernardo A; Saute, Milton

    2009-10-01

    Delayed-onset pericardial effusion following cardiac surgery can give rise to significant morbidity due to its presentation as well as management by traditional surgical techniques. An institutional experience of a video-assisted thoracoscopic technique to create a pericardial window, with the advantages of a minimally invasive approach combined with excellent visualization in such patients, was reviewed. A retrospective analysis was conducted on all patients undergoing video-assisted thoracoscopic for delayed pericardial effusion after cardiac surgery from January 2001 to January 2006 at our center. Seven patients with echocardiographically diagnosed delayed tamponade underwent video-assisted thoracoscopy; 5 were receiving anticoagulants after valve replacement, and 2 had undergone heart transplantation. Pericardial windows were created under general anesthesia and single-lung ventilation using 2 to 3 trocars. Mean operative time was 45 min. There were no complications of the thoracoscopic technique. Video-assisted thoracoscopic creation of a pericardial window is safe and effective treatment for loculated pericardial effusions secondary to cardiac surgery.

  1. Video recording of ophthalmic surgery--ethical and legal considerations.

    Science.gov (United States)

    Turnbull, Andrew M J; Emsley, Elizabeth S

    2014-01-01

    Video documenting is increasingly used in ophthalmic training and research, with many ophthalmologists routinely recording their surgical cases. Although this modality represents an excellent means of improving technique and advancing knowledge, there are major ethical and legal considerations with its use. Informed consent to record is required in most situations. Patients should be advised of any risk of identification and the purpose of the recording. Systems should be in place to deal with issues such as data storage, withdrawal of consent, and patients requesting copies of their recording. Privacy and security of neither patients nor health care professionals should be compromised. Ownership and distribution of video recordings, the potential for their use in medical litigation, the ethics and legality of editing and the impact on surgeon performance are other factors to consider. Although video recording of ophthalmic surgery is useful and technically simple to accomplish, patient safety and welfare must always remain paramount. Copyright © 2014 Elsevier Inc. All rights reserved.

  2. Advancement of thyroid surgery video recording: A comparison between two full HD head mounted video cameras.

    Science.gov (United States)

    Ortensi, Andrea; Panunzi, Andrea; Trombetta, Silvia; Cattaneo, Alberto; Sorrenti, Salvatore; D'Orazi, Valerio

    2017-05-01

    The aim of this study was to test two different video cameras and recording systems used in thyroid surgery in our Department. This is meant to be an attempt to record the real point of view of the magnified vision of surgeon, so as to make the viewer aware of the difference with the naked eye vision. In this retrospective study, we recorded and compared twenty thyroidectomies performed using loupes magnification and microsurgical technique: ten were recorded with GoPro(®) 4 Session action cam (commercially available) and ten with our new prototype of head mounted video camera. Settings were selected before surgery for both cameras. The recording time is about from 1 to 2 h for GoPro(®) and from 3 to 5 h for our prototype. The average time of preparation to fit the camera on the surgeon's head and set the functionality is about 5 min for GoPro(®) and 7-8 min for the prototype, mostly due to HDMI wiring cable. Videos recorded with the prototype require no further editing, which is mandatory for videos recorded with GoPro(®) to highlight the surgical details. the present study showed that our prototype of video camera, compared with GoPro(®) 4 Session, guarantees best results in terms of surgical video recording quality, provides to the viewer the exact perspective of the microsurgeon and shows accurately his magnified view through the loupes in thyroid surgery. These recordings are surgical aids for teaching and education and might be a method of self-analysis of surgical technique. Copyright © 2017 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

  3. Video-assisted thoracoscopic surgery for patients with pulmonary coccidioidomycosis.

    Science.gov (United States)

    Ashfaq, Awais; Vikram, Holenarasipur R; Blair, Janis E; Jaroszewski, Dawn E

    2014-10-01

    The study objective was to evaluate the use of video-assisted thoracoscopic surgery for removal of pulmonary sequelae of the fungal infection coccidioidomycosis. Retrospective chart review of all patients with pulmonary coccidioidomycosis treated surgically at our tertiary care center between January 1, 2009, and August 31, 2012. Of 2166 patients treated for pulmonary coccidioidomycosis, 58 (2.7%) (median age, 52 years [range, 18-84 years]) required surgical treatment. Surgical resection was performed for diagnosis (n=28 [48%]); 17 with positive positron emission tomography findings); persistent or progressive symptoms despite antifungal therapy (n=23 [40%]); or complications (n=7 [12%] of cavity rupture/infection). Of 33 patients (57%) who had serology performed, 23 (70%) had positive results. Video-assisted thoracoscopic surgery was used for most (95%; n=55) procedures, including 38 (67%) wedge resections, 14 (24%) segmentectomies, and 6 (11%) lobectomies; 4 patients also required additional decortication. Major (8%), including 1 death, and minor (12%) complications occurred in 12 patients postoperatively. Median hospitalization was 3 days (range, 1-8 days). Postoperative antifungal therapy was administered to 50% of patients for a median duration of 2 months. No patient had recurrent coccidioidomycosis at a median follow-up of 19 months. Although rarely necessary for pulmonary coccidioidomycosis, surgical intervention may be indicated. Specific indications include refractory symptomatic disease and complications of the infection, such as cavity rupture. Excisional biopsies also may be required for diagnostic confirmation of indeterminate pulmonary nodules. With video-assisted thoracoscopic surgery, diagnostic and therapeutic intervention can be undertaken with a low risk of complications and shorter length of hospital stay. Copyright © 2014 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

  4. Current practices in long-term video-EEG monitoring services : A survey among partners of the E-PILEPSY pilot network of reference for refractory epilepsy and epilepsy surgery

    NARCIS (Netherlands)

    Kobulashvili, Teia; Höfler, Julia; Dobesberger, Judith; Ernst, Florian; Ryvlin, Philippe; Cross, J. Helen; Braun, Kees; Dimova, Petia; Francione, Stefano; Hecimovic, Hrvoje; Helmstaedter, Christoph; Kimiskidis, Vasilios K.; Lossius, Morten Ingvar; Malmgren, Kristina; Marusic, Petr; Steinhoff, Bernhard J.; Boon, Paul; Craiu, Dana; Delanty, Norman; Fabo, Daniel; Gil-Nagel, Antonio; Guekht, Alla; Hirsch, Edouard; Kalviainen, Reetta; Mameniskiené, Ruta; Özkara, Çiǧdem; Seeck, Margitta; Rubboli, Guido; Krsek, Pavel; Rheims, Sylvain; Trinka, Eugen

    2016-01-01

    Purpose The European Union-funded E-PILEPSY network aims to improve awareness of, and accessibility to, epilepsy surgery across Europe. In this study we assessed current clinical practices in epilepsy monitoring units (EMUs) in the participating centers. Method A 60-item web-based survey was distrib

  5. Monitoring of myocardial injury after noncardiac surgery

    NARCIS (Netherlands)

    van Waes, JAR|info:eu-repo/dai/nl/341538973

    2017-01-01

    Background Postoperative myocardial infarction (POMI) is an important complication after noncardiac surgery, that is associated with increased risk of mortality. In order to improve prognosis, routine postoperative monitoring with cardiac biomarkers is recommended to identify patients at risk for PO

  6. Needlescopic video-assisted thoracic surgery pleurodesis for primary pneumothorax.

    Science.gov (United States)

    Sihoe, Alan D L; Hsin, Michael K Y; Yu, Peter S Y

    2014-01-01

    Conventional video-assisted thoracic surgery (VATS) is already well established as the approach of choice for definitive surgical management for primary pneumothorax. However, VATS itself is a constantly evolving technique. The needlescopic VATS (nVATS) approach uses the existing chest drain wound as a working port and adds only two 3-mm ports to provide equally effective pleurodesis as conventional VATS. Staple resection of bullae or blebs plus complete mechanical parietal pleural abrasion is achievable using nVATS. By potentially reducing morbidity for the individual patient, the nVATS approach may lower thresholds for surgical candidacy-even for first episodes of primary pneumothorax.

  7. Microscope integrated indocyanine green video-angiography in cerebrovascular surgery.

    Science.gov (United States)

    Dashti, Reza; Laakso, Aki; Niemelä, Mika; Porras, Matti; Hernesniemi, Juha

    2011-01-01

    Microscope integrated indocyanine green video-angiography (ICG-VA) is a new technique for intraoperative assessment of blood flow that has been recently applied to the field of Neurosurgery. ICG-VA is known as a simple and practical method of blood flow assessment with acceptable reliability. Real time information obtained under magnification of operating microscope has many potential applications in the microneurosurgical management of vascular lesions. This review is based on institutional experience with use of ICG-VA during surgery of intracranial aneurysms, AVMs and other vascular lesions at the Department of Neurosurgery at Helsinki University Central Hospital.

  8. Modified uniportal video-assisted thoracic surgery in children.

    Science.gov (United States)

    Fernandez-Pineda, Israel; Seims, Aaron D

    2016-01-01

    Video-assisted thoracic surgery (VATS) has been traditionally performed by a multi-port approach, but uniportal VATS is gaining popularity among thoracic surgeons. The use of only one intercostal space may result in less pain, but competition among camera and operating instruments may be a disadvantage. In children, the limited space in the thorax makes the uniportal VATS difficult to accomplish. We present a modification of the uniportal VATS, using a single skin incision but placing the thoracoscope in the superior or inferior intercostal space relative to the working instruments to increase instrument range of motion within a single intercostal space.

  9. Modified uniportal video-assisted thoracic surgery in children

    Science.gov (United States)

    Fernandez-Pineda, Israel; Seims, Aaron D.

    2016-01-01

    Video-assisted thoracic surgery (VATS) has been traditionally performed by a multi-port approach, but uniportal VATS is gaining popularity among thoracic surgeons. The use of only one intercostal space may result in less pain, but competition among camera and operating instruments may be a disadvantage. In children, the limited space in the thorax makes the uniportal VATS difficult to accomplish. We present a modification of the uniportal VATS, using a single skin incision but placing the thoracoscope in the superior or inferior intercostal space relative to the working instruments to increase instrument range of motion within a single intercostal space. PMID:27251823

  10. Secure and Efficient Reactive Video Surveillance for Patient Monitoring

    Science.gov (United States)

    Braeken, An; Porambage, Pawani; Gurtov, Andrei; Ylianttila, Mika

    2016-01-01

    Video surveillance is widely deployed for many kinds of monitoring applications in healthcare and assisted living systems. Security and privacy are two promising factors that align the quality and validity of video surveillance systems with the caliber of patient monitoring applications. In this paper, we propose a symmetric key-based security framework for the reactive video surveillance of patients based on the inputs coming from data measured by a wireless body area network attached to the human body. Only authenticated patients are able to activate the video cameras, whereas the patient and authorized people can consult the video data. User and location privacy are at each moment guaranteed for the patient. A tradeoff between security and quality of service is defined in order to ensure that the surveillance system gets activated even in emergency situations. In addition, the solution includes resistance against tampering with the device on the patient’s side. PMID:26729130

  11. Secure and Efficient Reactive Video Surveillance for Patient Monitoring

    Directory of Open Access Journals (Sweden)

    An Braeken

    2016-01-01

    Full Text Available Video surveillance is widely deployed for many kinds of monitoring applications in healthcare and assisted living systems. Security and privacy are two promising factors that align the quality and validity of video surveillance systems with the caliber of patient monitoring applications. In this paper, we propose a symmetric key-based security framework for the reactive video surveillance of patients based on the inputs coming from data measured by a wireless body area network attached to the human body. Only authenticated patients are able to activate the video cameras, whereas the patient and authorized people can consult the video data. User and location privacy are at each moment guaranteed for the patient. A tradeoff between security and quality of service is defined in order to ensure that the surveillance system gets activated even in emergency situations. In addition, the solution includes resistance against tampering with the device on the patient’s side.

  12. Video methods for evaluating physiologic monitor alarms and alarm responses.

    Science.gov (United States)

    Bonafide, Christopher P; Zander, Miriam; Graham, Christian Sarkis; Weirich Paine, Christine M; Rock, Whitney; Rich, Andrew; Roberts, Kathryn E; Fortino, Margaret; Nadkarni, Vinay M; Lin, Richard; Keren, Ron

    2014-01-01

    False physiologic monitor alarms are extremely common in the hospital environment. High false alarm rates have the potential to lead to alarm fatigue, leading nurses to delay their responses to alarms, ignore alarms, or disable them entirely. Recent evidence from the U.S. Food and Drug Administration (FDA) and The Joint Commission has demonstrated a link between alarm fatigue and patient deaths. Yet, very little scientific effort has focused on the rigorous quantitative measurement of alarms and responses in the hospital setting. We developed a system using multiple temporarily mounted, minimally obtrusive video cameras in hospitalized patients' rooms to characterize physiologic monitor alarms and nurse responses as a proxy for alarm fatigue. This allowed us to efficiently categorize each alarm's cause, technical validity, actionable characteristics, and determine the nurse's response time. We describe and illustrate the methods we used to acquire the video, synchronize and process the video, manage the large digital files, integrate the video with data from the physiologic monitor alarm network, archive the video to secure servers, and perform expert review and annotation using alarm "bookmarks." We discuss the technical and logistical challenges we encountered, including the root causes of hardware failures as well as issues with consent, confidentiality, protection of the video from litigation, and Hawthorne-like effects. The description of this video method may be useful to multidisciplinary teams interested in evaluating physiologic monitor alarms and alarm responses to better characterize alarm fatigue and other patient safety issues in clinical settings.

  13. Video-assisted thoracoscopic surgery lobectomy – early experience

    Directory of Open Access Journals (Sweden)

    Robert Šimon

    2010-09-01

    Full Text Available Introduction: Video-assisted thoracoscopic surgery (VATS lobectomy is the anatomical resection of a whole lobe ofthe lung followed by removal of the lymph nodes from the mediastinum using a thoracoscope and an access incision(small thoracotomy ≤ 5 cm without using the rib spreader. Aim: To present the early experience with VATS lobectomy. Material and methods: Five patients were treated surgically using the VATS technique of anatomical lung resection atthe 2nd Department of Surgery, Pavol Jozef Šafárik University, University Hospital of L. Pasteur, Košice, (Slovak Republicwithin 12 months from 10.2008 to 10.2009. Lobectomy was performed in 4 patients and pneumonectomy in 1 patient. Results: The mean operating time was 120 min (range 80-170 min. Following lobectomy a drain was inserted into thepleural cavity in 4 cases, whereas there was no drainage after 1 pneumonectomy. Drains were removed 2-5 days afterthe surgery. Four patients suffered from lung carcinoma (1 squamous cell carcinoma, 3 adenocarcinomas; 1 patienthad chondroid hamartoma. Postoperative condition was good in all patients. There were no early complications andpatients were released home on the 6th postoperative day on average. Conclusions: The advantages of VATS lobectomy have been widely discussed. There is a consensus that in elderlypatients with non-small cell lung cancer VATS lobectomy accompanied by mediastinal lymphadenectomy reduces theincidence of complications after the surgery and patients recover faster.

  14. Staff acceptance of video monitoring for coordination: a video system to support perioperative situation awareness.

    Science.gov (United States)

    Kim, Young Ju; Xiao, Yan; Hu, Peter; Dutton, Richard

    2009-08-01

    To understand staff acceptance of a remote video monitoring system for operating room (OR) coordination. Improved real-time remote visual access to OR may enhance situational awareness but also raises privacy concerns for patients and staff. Survey. A system was implemented in a six-room surgical suite to display OR monitoring video at an access restricted control desk area. Image quality was manipulated to improve staff acceptance. Two months after installation, interviews and a survey were conducted on staff acceptance of video monitoring. About half of all OR personnel responded (n = 63). Overall levels of concerns were low, with 53% rated no concerns and 42% little concern. Top two reported uses of the video were to see if cases are finished and to see if a room is ready. Viewing the video monitoring system as useful did not reduce levels of concern. Staff in supervisory positions perceived less concern about the system's impact on privacy than did those supervised (p staff privacy and performance monitoring. Technical means such as manipulating image quality helped staff acceptance. Manipulation of image quality resulted overall acceptance of monitoring video, with residual levels of concerns. OR nurses may express staff privacy concern in the form of concerns over patient privacy. This study provided suggestions for technological and implementation strategies of video monitoring for coordination use in OR. Deployment of communication technology and integration of clinical information will likely raise concerns over staff privacy and performance monitoring. The potential gain of increased information access may be offset by negative impact of a sense of loss of autonomy.

  15. [Video-assisted thoracic surgery, lung transplantation and mediastinitis: major issues in thoracic surgery in 2010].

    Science.gov (United States)

    Borro, José M; Moreno, Ramón; Gómez, Ana; Duque, José Luis

    2011-01-01

    We reviewed the major issues in thoracic surgery relating to the advances made in our specialty in 2010. To do this, the 43(rd) Congress of the Spanish Society of Pneumology and Thoracic Surgery held in La Coruña and the articles published in the Society's journal, Archivos de Bronconeumología, were reviewed. The main areas of interest were related to the development of video-assisted thoracic surgery, lung transplantation and descending mediastinitis. The new tumor-node-metastasis (TNM) classification (7(th) edition), presented last year, was still a topical issue this year. The First Forum of Thoracic Surgeons and the Update in Thoracic Surgery together with the Nurses' Area have constituted an excellent teaching program.

  16. Video-Assisted Thoracic Surgery for Tubercular Spondylitis

    Directory of Open Access Journals (Sweden)

    Roop Singh

    2014-01-01

    Full Text Available The present study evaluated the outcome of video-assisted thoracic surgery (VATS in 9 patients (males = 6, females = 3 with clinico-radiological diagnosis of tubercular spondylitis of the dorsal spine. The mean duration of surgery was 140.88 ± 20.09 minutes, mean blood was 417.77 ± 190.90 mL, and mean duration of postoperative hospital stay was 5.77 ± 0.97 days, Seven patients had a preoperative Grade A neurological involvement, while at the time of final followup the only deficit was Grade D power in 2 patients. In patients without bone graft placement (n = 6, average increase in Kyphosis angle was 16°, while in patients with bone graft placement (n = 3 the deformity remained stationary. At the time of final follow up, fusion was achieved in all patients, the VAS score for back pain improved from a pretreatment score of 8.3 to 2, and the function assessment yielded excellent (n = 4 to good (n = 5 results. In two patients minithoracotomy had to be resorted due to extensive pleural adhesions (n = 1 or difficulty in placement of graft (n = 1. Videoassisted thoracoscopic surgery provides a safe and effective approach in the management of spinal tuberculosis. It has the advantages of decreased blood loss and post operative morbidity with minimal complications.

  17. Application of EPON Technology in Transmission Line Video Monitoring

    Directory of Open Access Journals (Sweden)

    Xia Zongze

    2015-01-01

    Full Text Available The operating condition of transmission lines directly determines the efficiency of the power system. Therefore, faced with a complex operating environment, it is extremely important to protect transmission line video monitoring. At present, the technology widely used in the power distribution and network communication in domestic power industry is EPON technology. This technology has a broad application prospect on the transmission of electrical circuit video monitoring information. On this basis, this paper carries out a further research on the application of EPON technology in transmission line video monitoring. This paper firstly proposes the design principle of transmission line video monitoring, and on this basis, it carries out a comparative analysis of merits and demerits of different types of EPON networking schemes. In addition, quantification is given for the EPON networking power consumption, so as to obtain a complete EPON combining scheme which is combined with specific examples to validate, and finally realize that the EPON technology has a certain application value because it is in line with various indicators after application in transmission line video monitoring.

  18. Video-assisted thoracoscopic surgery for penetrating thoracic trauma

    Directory of Open Access Journals (Sweden)

    Jin Jian

    2015-07-01

    Full Text Available Purpose: For penetrating thoracic trauma, there is no consensus on whether operative exploration or conservative treatment is better. In this study, we compared the clinical effect of video-assisted thoracoscopic surgery (VATS and thoracotomy on the patients with penetrating thoracic trauma. Methods: From January 2000 to December 2010, 123 patients with penetrating thoracic trauma were treated in Affiliated Hospital of Chengdu University. Based on the inclusion criteria, 80 patients were enrolled and randomly assigned into VATS and thoracotomy group. Results: The operation time, amount of bleeding and drainage in VATS group were all lower than traditional operation (p < 0.05. Conclusion: The results indicate that VATS has the merits of shorter operation time, non-blind area, exact surgical path and less bleeding comparing with traditional operation.

  19. [Computer-assisted video-endoscopic endonasal surgery].

    Science.gov (United States)

    Schmerber, S; Chen, B; Lavallée, S; Coulomb, M; Chirossel, J P; Lavieille, J P; Reyt, E

    2001-02-01

    To make the surgical procedure safer and more precise in FESS, a non-invasive markerless computer-assisted system (CAS) is described for intra-operative navigation whenever the critical regions may be affected by surgical manipulation. Twenty patients with benign diseases of the paranasal sinuses were treated by Computer Assisted Video-endoscopic surgery, between December 1997 and March 1998. For the determination of accuracy and reproducibility of the system, ten anatomical landmarks on each side of the paranasal sinuses were chosen and measured. All of these points were identified on the direct live video-endoscopy image and compared to those obtained with the Optical Digitizing System (Flashpoint 5000(R)), on axial, coronal and sagittal view. The Optical Localizer we used detects the position of the relative coordinates of two rigid bodies made of IR-LED's each, one rigid body is secured to the head' of the patient with a headset, so that patient motion can be tracked, and the second rigid body attached to the operating instrument, leading to direct localization of the tip of the instrument. We use a markerless, skin surface-based registration method, which has the advantage to avoid doing a second CT scan examination usually performed to process the position of the fiducial markers. We register the data from the patient's usual paranasal CT scan. Computer-assisted surgery does not increase significantly the duration of the operation. Our markerless skin surface points registration method is reliable enabling of the movements patient's head during the procedure. Computer assistance can be used in almost any type of endoscopic sinonasal procedure. We obtained a registration and calibration accuracy of less than 1.5 mm in 89.2% of cases. CAS enables the surgeon to have a more thorough understanding of the complicated anatomy of paranasal sinuses, and may be especially helpful in revision surgery when normal anatomic landmarks are lacking. Due to the passive

  20. Video-assisted thoracoscopic surgery for acute thoracic trauma

    Directory of Open Access Journals (Sweden)

    Michael Goodman

    2013-01-01

    Full Text Available Background: Operative intervention for thoracic trauma typically requires thoracotomy. We hypothesized that thoracoscopy may be safely and effectively utilized for the acute management of thoracic injuries. Materials and Methods: The Trauma Registry of a Level I trauma center was queried from 1999 through 2010 for all video-assisted thoracic procedures within 24 h of admission. Data collected included initial vital signs, operative indication, intraoperative course, and postoperative outcome. Results: Twenty-three patients met inclusion criteria: 3 (13% following blunt injury and 20 (87% after penetrating trauma. Indications for urgent thoracoscopy included diaphragmatic/esophageal injury, retained hemothorax, ongoing hemorrhage, and open/persistent pneumothorax. No conversions to thoracotomy were required and no patient required re-operation. Mean postoperative chest tube duration was 2.9 days and mean length of stay was 5.6 days. Conclusion: Video-assisted thoracoscopic surgery is safe and effective for managing thoracic trauma in hemodynamically stable patients within the first 24 h post-injury.

  1. A virtual instrument ergonomics workstation for measuring the mental workload of performing video-endoscopic surgery.

    Science.gov (United States)

    Smith, W D; Chung, Y H; Berguer, R

    2000-01-01

    The visual and physical interface imposed on the surgeon by video-endoscopic surgery (VES) increases the surgeon's mental workload. Ergonomic studies are needed to develop ways to reduce this workload. We used virtual instrumentation to devise a portable ergonomic workstation to compare the surgeon's mental workloads during simulated open surgery and VES. The system measures palmar tonic skin conductance level (SCL) and electrooculogram (EOG) and frontalis electrical activity to monitor mental stress and concentration levels. We used the system at a national surgery conference on volunteer subjects during a rest period and as they performed simulated surgery, consisting of typing knots using open and VES techniques. The subjects were asked to self-rate their levels of mental concentration and stress during these activities and reported that both progressively increased from rest to the open surgery task to the VES task. The subjects tied fewer knots during the VES than the open task, consistent with the increased demands of the VES task. The SCL progressively increased from rest to the open task to the VES task, correlating with the subjects' reported increase in mental stress level. Eye blinks and low frequency EOG activity decreased from rest to the open task, consistent with the subjects' reported increase in mental concentration level. From the open to the VES task, eye blinks and EOG activity increased, as expected given the greater demands of the VES task. High frequency frontalis activity merits further study as another indicator of the subjects' levels of mental concentration and stress.

  2. YouTube videos in the English language as a patient education resource for cataract surgery.

    Science.gov (United States)

    Bae, Steven S; Baxter, Stephanie

    2017-08-28

    To assess the quality of the content of YouTube videos for cataract surgery patient education. Hotel Dieu Hospital, Kingston, Ontario, Canada. Observational study. "Cataract surgery," "cataract surgery for patients," and "cataract surgery patient education" were used as search terms. The first two pages of search results were reviewed. Descriptive statistics such as video length and view count were obtained. Two cataract surgeons devised 14 criteria important for educating patients about the procedure. Videos were analyzed based on the presence or absence of these criteria. Videos were also assessed for whether they had a primary commercial intent. Seventy-two videos were analyzed after excluding 48 videos that were duplicate, irrelevant, or not in English. The majority of videos came from a medical professional (71%) and many depicted a real cataract surgery procedure (43%). Twenty-one percent of the videos had a primary commercial intent to promote a practice or product. Out of a total possible 14 points, the mean number of usefulness criteria satisfied was only 2.28 ± 1.80. There was no significant difference in view count between the most useful videos and other videos (p = 0.94). Videos from medical organizations such as the National Health Service were more useful (p < 0.0001). Cataract surgery videos are popular on YouTube, but most are not adequately educational. Patients may be receiving biased information from videos created with primary commercial intent. Physicians should be aware of the type of information patients may be accessing on YouTube.

  3. An optically remote powered subsea video monitoring system

    Science.gov (United States)

    Lau, Fat Kit; Stewart, Brian; McStay, Danny

    2012-06-01

    The drive for Ocean pollution prevention requires a significant increase in the extent and type of monitoring of subsea hydrocarbon production equipment. Sensors, instrumentation, control electronics, data logging and transmission units comprising such monitoring systems will all require to be powered. Conventionally electrical powering is supplied by standard subsea electrical cabling. The ability to visualise the assets being monitored and any changes or faults in the equipment is advantageous to an overall monitoring system. However the effective use of video cameras, particularly if the transmission of real time high resolution video is desired, requires a high data rate and low loss communication capability. This can be challenging for heavy and costly electrical cables over extended distances. For this reason optical fibre is often adopted as the communication channel. Using optical fibre cables for both communications and power delivery can also reduce the cost of cabling. In this paper we report a prototype optically remote powered subsea video monitoring system that provides an alternative approach to powering subsea video cameras. The source power is transmitted to the subsea module through optical fibre with an optical-to-electrical converter located in the module. To facilitate intelligent power management in the subsea module, a supercapacitor based intermediate energy storage is installed. Feasibility of the system will be demonstrated. This will include energy charging and camera operation times.

  4. Noninvasive Free Flap Monitoring Using Eulerian Video Magnification

    Directory of Open Access Journals (Sweden)

    Yuan Fang Liu

    2016-01-01

    Full Text Available Eulerian Video Magnification (EVM can enhance subtle changes in videos to reveal what was once invisible to the naked eye. In this proof of concept study, we investigated using EVM as a novel form of free flap monitoring. Free flaps with skin paddles were filmed in the operating room with manipulation of their pedicles. In a representative 77-year-old female who received a latissimus dorsi-serratus-rib composite free flap, EVM was able to detect blockage of arterial or venous supply instantaneously, providing a visible representation through degree of color change in videos. EVM has the potential to serve as a powerful free flap monitoring tool with the benefit of being noninvasive, sensitive, easy-to-use, and nearly cost-free.

  5. Paroxysmal events during prolonged video-video electroencephalography monitoring in refractory epilepsy.

    Science.gov (United States)

    Sanabria-Castro, A; Henríquez-Varela, F; Monge-Bonilla, C; Lara-Maier, S; Sittenfeld-Appel, M

    2017-03-16

    Given that epileptic seizures and non-epileptic paroxysmal events have similar clinical manifestations, using specific diagnostic methods is crucial, especially in patients with drug-resistant epilepsy. Prolonged video electroencephalography monitoring during epileptic seizures reveals epileptiform discharges and has become an essential procedure for epilepsy diagnosis. The main purpose of this study is to characterise paroxysmal events and compare patterns in patients with refractory epilepsy. We conducted a retrospective analysis of medical records from 91 patients diagnosed with refractory epilepsy who underwent prolonged video electroencephalography monitoring during hospitalisation. During prolonged video electroencephalography monitoring, 76.9% of the patients (n=70) had paroxysmal events. The mean number of events was 3.4±2.7; the duration of these events was highly variable. Most patients (80%) experienced seizures during wakefulness. The most common events were focal seizures with altered levels of consciousness, progressive bilateral generalized seizures and psychogenic non-epileptic seizures. Regarding all paroxysmal events, no differences were observed in the number or type of events by sex, in duration by sex or age at onset, or in the number of events by type of event. Psychogenic nonepileptic seizures were predominantly registered during wakefulness, lasted longer, started at older ages, and were more frequent in women. Paroxysmal events recorded during prolonged video electroencephalography monitoring in patients with refractory epilepsy show similar patterns and characteristics to those reported in other latitudes. Copyright © 2017 The Author(s). Publicado por Elsevier España, S.L.U. All rights reserved.

  6. Drug taper during long-term video-EEG monitoring

    DEFF Research Database (Denmark)

    Guld, Asger Toke; Sabers, A; Kjaer, T W

    2017-01-01

    OBJECTIVES: Anti-epileptic drugs (AED) are often tapered to reduce the time needed to record a sufficient number of seizure during long-term video-EEG monitoring (LTM). Fast AED reduction is considered less safe, but few studies have examined this. Our goal is to examine whether the rate of AED...

  7. Monitoring Motion of Pigs in Thermal Videos

    DEFF Research Database (Denmark)

    Gronskyte, Ruta; Kulahci, Murat; Clemmensen, Line Katrine Harder

    2013-01-01

    and extract features which characterize a pig’s movement (direction and speed). Subsequently a multiway princi-pal component analysis is used to analyze the movement features and monitor their development over time. Results are presented in the form of quality control charts of the principal components...

  8. Palliative management of lymphangioleiomyomatosis: Using video-assisted thoracoscopic surgery.

    Science.gov (United States)

    Khoja, Amir M; Duggal, Damanjit; Keni, Ajay; Patel, Chintan S; Chavan, Rahul

    2014-01-01

    Lymphangioleiomyomatosis (LAM) is a rare, progressive systemic disease of unknown etiology, insidious onset, often fatal, and underdiagnosed. It is exclusively found among women. LAM mainly involves the lungs where, as its name suggests, lymphatic (lymph), blood vessel (angio), and airways are surrounded by smooth muscle (leiomyoma) proliferation. It may be associated with tuberous sclerosis with clinical manifestations varying from simple cough to the development of recurrent pneumothoraces, haemoptysis, and pleural effusions. There is currently no treatment or cure. We present a rare case of a 41-year-old female, who presented with recurrent pneumothoraces, whose high-resolution computed tomography findings that were suggestive of multiple bullous lung disease, and the thoracoscopic biopsy revealed features of LAM. She was offered video-assisted thoracoscopic surgery in form of bullectomy and pleurodesis to reduce the volume of abnormal tissue and treated with progesterone hormonal therapy. The present case aims to focus on clinical-radiologic and pathologic findings and the treatment modalities available in developing countries like India where lung transplantation is seldom performed.

  9. Minimalist video-assisted thoracic surgery biopsy of mediastinal tumors.

    Science.gov (United States)

    Tacconi, Federico; Rogliani, Paola; Cristino, Benedetto; Gilardi, Francesco; Palombi, Leonardo; Pompeo, Eugenio

    2016-12-01

    Mediastinal tumors often require surgical biopsy to achieve a precise and rapid diagnosis. However, subjects with mediastinal tumors may be unfit for general anesthesia, particularly when compression of major vessels or airways does occur. We tested the applicability in this setting of a minimalist (M) uniportal, video-assisted thoracic surgery (VATS) strategy carried out under locoregional anesthesia in awake patients (MVATS). We analyzed in a comparative fashion including propensity score matching, data from a prospectively collected database of patients who were offered surgical biopsy for mediastinal tumors through either MVATS or standard VATS. Tested outcome measures included feasibility, diagnostic yield, and morbidity. A total of 24 procedures were performed through MVATS. Diagnostic yield was 100%. Median hospital stay and time interval to oncologic treatment were 2 days (IQR, 2-3 days) and 7 days (IQR, 5.5-11.5 days), respectively. At overall comparison (MVATS, N=24 vs. VATS, N=23), there was a significant difference in both frequency and severity of postoperative complication as measured by Clavien-Dindo classification (PSIRS score (P=0.05) and PaO2/FiO2 (P=0.04) thus suggesting better adaption to perioperative stress. MVATS biopsy appears to be a reliable tool to optimize diagnostic assessment in patients with mediastinal tumors. It can offer high diagnostic accuracy due to large tissue samples, while reducing morbidity rate compared to the same operation under general anesthesia. More robust evaluation is needed to define the appropriateness of MVATS in this specific clinical setting.

  10. Video-assisted thoracoscopic surgery (VATS) lobectomy using a standardized anterior approach

    DEFF Research Database (Denmark)

    Hansen, Henrik Jessen; Petersen, René Horsleben; Christensen, Merete

    2011-01-01

    Lobectomy using video-assisted thoracoscopic surgery (VATS) still is a controversial operation despite its many observed benefits. The controversy may be due to difficulties performing the procedure. This study addresses a standardized anterior approach facilitating the operation....

  11. Video-Assisted Informed Consent for Cataract Surgery: A Randomized Controlled Trial

    Science.gov (United States)

    Ruan, Xiangcai; Tang, Haoying; Yang, Weizhong; Xian, Zhuanhua; Lu, Min

    2017-01-01

    Purpose. To investigate whether adding video assistance to traditional verbal informed consent advisement improved satisfaction among cataract surgery patients. Methods. This trial enrolled 80 Chinese patients with age-related cataracts scheduled to undergo unilateral phacoemulsification surgery. Patients were randomized into two groups: the video group watched video explaining cataract-related consent information and rewatched specific segments of the video at their own discretion, before receiving traditional verbal consent advisement; the control group did not watch the video. Outcomes included patient satisfaction, refusal to consent, time to complete the consent process, and comprehension measured by a ten-item questionnaire. Results. All 80 enrolled patients signed informed consent forms. Compared with the control group, members of the video group exhibited greater satisfaction (65% versus 86%, p = 0.035) and required less time to complete the consent process (12.3 ± 6.7 min versus 5.6 ± 5.4 min, p < 0.001), while also evincing levels of comprehension commensurate with those reported for patients who did not watch the video (accuracy rate, 77.5% versus 80.2%, p = 0.386). Conclusion. The video-assisted informed consent process had a positive impact on patients' cataract surgery experiences. Additional research is needed to optimize patients' comprehension of the video. PMID:28191349

  12. Real-time moving object detection for video monitoring systems

    Institute of Scientific and Technical Information of China (English)

    Wei Zhiqiang; Ji Xiaopeng; Wang Peng

    2006-01-01

    Moving object detection is one of the challenging problems in video monitoring systems, especially when the illumination changes and shadow exists. A method for real-time moving object detection is described. A new background model is proposed to handle the illumination varition problem. With optical flow technology and background subtraction, a moving object is extracted quickly and accurately. An effective shadow elimination algorithm based on color features is used to refine the moving objects. Experimental results demonstrate that the proposed method can update the background exactly and quickly along with the varition of illumination, and the shadow can be eliminated effectively. The proposed algorithm is a real-time one which the foundation for further object recognition and understanding of video monitoring systems.

  13. Wireless video monitoring and robot control in security applications

    Science.gov (United States)

    Nurkkala, Eero A.; Pyssysalo, Tino; Roning, Juha

    1998-10-01

    This research focuses on applications based on wireless monitoring and robot control, utilizing motion image and augmented reality. These applications include remote services and surveillance-related functions such as remote monitoring. A remote service can be, for example, a way to deliver products at a hospital or old people's home. Due to the mobile nature of the system, monitoring at places with privacy concerns is possible. On the other hand, mobility demands wireless communications. Suitable and present technologies for wireless video transfer are weighted. Identification of objects with the help of Radio Frequency Identifying (RFID) technology and facial recognition results in intelligent actions, for example, where the control of a robot does not require extensive workload from the user. In other words, tasks can be partially autonomous, RFID can be also used in augmentation of the video view with virtual objects. As a real-life experiment, a prototype environment is being constructed that consists of a robot equipped with a video camera and wireless links to the network and multimedia computer.

  14. Transient cortical visual impairment after video-assisted thoracic surgery: a case report

    OpenAIRE

    Yang, Hee Kyung; Hwang, Jeong-Min

    2015-01-01

    Background Visual loss associated with thoracic surgery has been reported mostly after coronary angiography or bypass surgery. The position of video-assisted thoracic surgery (VATS) is usually lateral, thus not compressive to the globe. Visual loss after VATS has not been reported. Herein we report a patient without any cardiovascular risk factors who experienced transient cortical blindness after an uneventful VATS. Case presentation A 40-year-old man noticed a visual loss at the recovery ro...

  15. Clinical values of intraoperative indocyanine green fluorescence video angiography with Flow 800 software in cerebrovascular surgery.

    Science.gov (United States)

    Ye, Xun; Liu, Xing-Ju; Ma, Li; Liu, Ling-Tong; Wang, Wen-Lei; Wang, Shuo; Cao, Yong; Zhang, Dong; Wang, Rong; Zhao, Ji-Zong; Zhao, Yuan-Li

    2013-11-01

    Microscope-integrated near-infrared indocyanine green video angiography (ICG-VA) has been used in neurosurgery for a decade. This study aimed to assess the value of intraoperative indocyanine green (ICG) video angiography with Flow 800 software in cerebrovascular surgery and to discover its hemodynamic features and changes of cerebrovascular diseases during surgery. A total of 87 patients who received ICG-VA during various surgical procedures were enrolled in this study. Among them, 45 cases were cerebral aneurysms, 25 were cerebral arteriovenous malformations (AVMs), and 17 were moyamoya disease (MMD). A surgical microscope integrating an infrared fluorescence module was used to confirm the residual aneurysms and blocking of perforating arteries in aneurysms. Feeder arteries, draining veins, and normal cortical vessels were identified by the time delay color mode of Flow 800 software. Hemodynamic parameters were recorded. All data were analyzed by SPSS version 18.0 (SPSS Inc., USA). T-test was used to analyze the hemodynamic features of AVMs and MMDs, the influence on peripheral cortex after resection in AVMs, and superficial temporal artery to middle cerebral artery (STA-MCA) bypass in MMDs. The visual delay map obtained by Flow 800 software had more advantages than the traditional playback mode in identifying the feeder arteries, draining veins, and their relations to normal cortex vessels. The maximum fluorescence intensity (MFI) and the slope of ICG fluorescence curve of feeder arteries and draining veins were higher than normal peripheral vessels (MFI: 584.24±85.86 vs. 382.94 ± 91.50, slope: 144.95 ± 38.08 vs. 69.20 ± 13.08, P software appears to be useful for intraoperative monitoring of regional cerebral blood flow in cerebrovascular disease.

  16. Real-time segmentation and recognition of surgical tasks in cataract surgery videos.

    Science.gov (United States)

    Quellec, Gwénolé; Lamard, Mathieu; Cochener, Béatrice; Cazuguel, Guy

    2014-12-01

    In ophthalmology, it is now common practice to record every surgical procedure and to archive the resulting videos for documentation purposes. In this paper, we present a solution to automatically segment and categorize surgical tasks in real-time during the surgery, using the video recording. The goal would be to communicate information to the surgeon in due time, such as recommendations to the less experienced surgeons. The proposed solution relies on the content-based video retrieval paradigm: it reuses previously archived videos to automatically analyze the current surgery, by analogy reasoning. Each video is segmented, in real-time, into an alternating sequence of idle phases, during which no clinically-relevant motions are visible, and action phases. As soon as an idle phase is detected, the previous action phase is categorized and the next action phase is predicted. A conditional random field is used for categorization and prediction. The proposed system was applied to the automatic segmentation and categorization of cataract surgery tasks. A dataset of 186 surgeries, performed by ten different surgeons, was manually annotated: ten possibly overlapping surgical tasks were delimited in each surgery. Using the content of action phases and the duration of idle phases as sources of evidence, an average recognition performance of Az = 0.832 ± 0.070 was achieved.

  17. Using a high-definition stereoscopic video system to teach microscopic surgery

    Science.gov (United States)

    Ilgner, Justus; Park, Jonas Jae-Hyun; Labbé, Daniel; Westhofen, Martin

    2007-02-01

    Introduction: While there is an increasing demand for minimally invasive operative techniques in Ear, Nose and Throat surgery, these operations are difficult to learn for junior doctors and demanding to supervise for experienced surgeons. The motivation for this study was to integrate high-definition (HD) stereoscopic video monitoring in microscopic surgery in order to facilitate teaching interaction between senior and junior surgeon. Material and methods: We attached a 1280x1024 HD stereo camera (TrueVisionSystems TM Inc., Santa Barbara, CA, USA) to an operating microscope (Zeiss ProMagis, Zeiss Co., Oberkochen, Germany), whose images were processed online by a PC workstation consisting of a dual Intel® Xeon® CPU (Intel Co., Santa Clara, CA). The live image was displayed by two LCD projectors @ 1280x768 pixels on a 1,25m rear-projection screen by polarized filters. While the junior surgeon performed the surgical procedure based on the displayed stereoscopic image, all other participants (senior surgeon, nurse and medical students) shared the same stereoscopic image from the screen. Results: With the basic setup being performed only once on the day before surgery, fine adjustments required about 10 minutes extra during the operation schedule, which fitted into the time interval between patients and thus did not prolong operation times. As all relevant features of the operative field were demonstrated on one large screen, four major effects were obtained: A) Stereoscopy facilitated orientation for the junior surgeon as well as for medical students. B) The stereoscopic image served as an unequivocal guide for the senior surgeon to demonstrate the next surgical steps to the junior colleague. C) The theatre nurse shared the same image, anticipating the next instruments which were needed. D) Medical students instantly share the information given by all staff and the image, thus avoiding the need for an extra teaching session. Conclusion: High definition

  18. An improved video median noise reduction algorithm for ambulance vehicle terminal monitoring system

    Science.gov (United States)

    Ma, Xian-Min; Zhang, Hang

    2012-04-01

    An improved video median noise reduction algorithm is presented for 120 vehicle terminal monitoring system in this paper. The noise causes of the video images in many 120 ambulance vehicle video terminal monitor equipments are analyzed, and the space rigid body model of self-adaptive median noise reduction filter is established to decrease the noises of the video image transmission process. The noise reduction experiment of video images shows that the proposed video median noise reduction algorithm is superior to the traditional adaptive filtering method, because the new method has the superiority of space-time joint noise reduction.

  19. Uniportal video-assisted thoracic surgery right upper lobectomy with systemic lymphadenectomy.

    Science.gov (United States)

    Han, Ding-Pei; Xiang, Jie; Li, He-Cheng; Hang, Jun-Biao

    2016-08-01

    This video demonstrated a performance of uniportal video-assisted thoracoscopic surgery (VATS) right upper lobectomy with systemic lymphadenectomy. The patient had a malignant mass in his right upper lobe. The operator took a posterior to anterior approach to dissection the right upper lobe, the adjacent structures were clearly demonstrated after the entire dissection of mediastinal lymph nodes. Postoperative pathological report suggested the stage of the tumor was T1bN0M0 (stage IA).

  20. Symptomatic pericardial schwannoma treated with video-assisted thoracic surgery: a case report

    Science.gov (United States)

    Yun, Po-Jen; Huang, Tsai-Wang; Li, Yao-Feng; Chang, Hung; Lee, Shih-Chun

    2016-01-01

    Intrathoracic schwannomas are neurogenic tumors derived from the Schwann cells of the nerve sheath, most often seen in the posterior mediastinum with anatomical correlations to nerves. Although they are typically benign, a malignant transformation can occur, and thoracotomy instead of video-assisted thoracoscopic surgery (VATS) is required to achieve a complete resection. Only a few cases of pericardial schwannoma have been reported so far. We present a rare case of pericardial schwannoma confirmed by video-assisted thoracoscopic resection. PMID:27162698

  1. Video-assisted thoracic surgery for cancer after thoracic aortic aneurysm repair.

    Science.gov (United States)

    Taylor, Lauren J; Adesoye, Taiwo; Maloney, James D

    2016-02-01

    Video-assisted thoracoscopic surgery is increasingly accepted as an alternative to open thoracotomy and has established efficacy in the management of non-small-cell lung cancer, but the presence of extensive intrapleural adhesions has been considered a deterrent to a minimally invasive approach. We report the successful use of video-assisted thoracoscopic surgery in 3 patients with history of open thoracic aortic aneurysm repair who presented with left lower lobe stage I non-small-cell lung cancer. While this approach is feasible, it is technically demanding and thus, at the present time, we recommend that its use be limited to high-volume video-assisted thoracoscopic surgery centers. © The Author(s) 2015.

  2. Clinical values of intraoperative indocyanine green fluorescence video angiography with Flow 800 software in cerebrovascular surgery

    Institute of Scientific and Technical Information of China (English)

    YE Xun; LIU Xing-ju; MA Li; LIU Ling-tong; WANG Wen-lei; WANG Shuo; CAO Yong

    2013-01-01

    Background Microscope-integrated near-infrared indocyanine green video angiography (ICG-VA) has been used in neurosurgery for a decade.This study aimed to assess the value of intraoperative indocyanine green (ICG) video angiography with Flow 800 software in cerebrovascular surgery and to discover its hemodynamic features and changes of cerebrovascular diseases during surgery.Methods A total of 87 patients who received ICG-VA during various surgical procedures were enrolled in this study.Among them,45 cases were cerebral aneurysms,25 were cerebral arteriovenous malformations (AVMs),and 17 were moyamoya disease (MMD).A surgical microscope integrating an infrared fluorescence module was used to confirm the residual aneurysms and blocking of perforating arteries in aneurysms.Feeder arteries,draining veins,and normal cortical vessels were identified by the time delay color mode of Flow 800 software.Hemodynamic parameters were recorded.All data were analyzed by SPSS version 18.0 (SPSS Inc.,USA).T-test was used to analyze the hemodynamic features of AVMs and MMDs,the influence on peripheral cortex after resection in AVMs,and superficial temporal artery to middle cerebral artery (STA-MCA) bypass in MMDs.Results The visual delay map obtained by Flow 800 software had more advantages than the traditional playback mode in identifying the feeder arteries,draining veins,and their relations to normal cortex vessels.The maximum fluorescence intensity (MFI) and the slope of ICG fluorescence curve of feeder arteries and draining veins were higher than normal peripheral vessels (MFI:584.24±85.86 vs.382.94±91.50,slope:144.95±38.08 vs.69.20±13.08,P <0.05).The artefiovenous transit time in AVM was significantly shorter than in normal cortical vessels ((0.60±0.27) vs.(2.08±1.42) seconds,P <0.05).After resection of AVM,the slope of artery in the cortex increased,which reflected the increased cerebral flow.In patients with MMD,after STA-MCA bypass,cortex perfusion of

  3. Minimally invasive video-assisted parathyroidectomy without intraoperative parathyroid hormone monitoring.

    Science.gov (United States)

    Rodrigo, Juan Pablo; Coca Pelaz, Andrés; Martínez, Patricia; González Marquez, Rocío; Suárez, Carlos

    2014-01-01

    surgical treatment of primary hyperparathyroidism has evolved from the classical bilateral neck exploration to minimally invasive techniques due to recent advances in preoperative localisation methods. The additional value of intraoperative parathyroid hormone (PTH) monitoring is questioned. The aim of this study was to analyse the results of minimally invasive video-assisted parathyroidectomy (MIVAP) without intraoperative PTH monitoring. the patients who underwent MIVAP without PTH monitoring for primary hyperparathyroidism between 2007 and 2013 were evaluated. In all cases the suspected enlarged gland was identified preoperatively by 99Tc-sestamibi scintigraphy, ultrasound or computed tomography. 71 patients were studied (56 females and 15 males), with a mean age of 60 years. In 3 cases (4%) the technique was converted to open parathyroidectomy. Calcium and PTH levels were normalised after first surgery in 69 cases (97%), and after a second surgery in the remaining 2 cases (a second contralateral and a second intrathyroid adenoma). One patient developed a postoperative wound infection, 1 postoperative hypocalcaemia, and 4 transient vocal fold paralysis. No permanent vocal fold paralysis or other complications were observed. MIVAP is a safe, effective surgical technique to cure primary hyperparathyroidism. Intraoperative PTH monitoring may not be routinely necessary in patients treated with this technique. Copyright © 2014 Elsevier España, S.L.U. y Sociedad Española de Otorrinolaringología y Patología Cérvico-Facial. All rights reserved.

  4. Systematic Video Documentation in Laparoscopic Colon Surgery Using a Checklist: A Feasibility and Compliance Pilot Study.

    Science.gov (United States)

    O'Mahoney, Paul R A; Trencheva, Koiana; Zhuo, Changhua; Shukla, Parul J; Lee, Sang W; Sonoda, Toyooki; Milsom, Jeffrey W

    2015-09-01

    High-quality images can be readily captured during laparoscopic colon surgery, but there are no guidelines for documentation of these video data or how to best measure surgical quality from an operative video. This study evaluates the feasibility and compliance in documenting key steps during laparoscopic right hemicolectomy and sigmoid colectomy. A retrospective review of previously recorded videos of patients undergoing laparoscopic right hemicolectomy or sigmoid colectomy from September to December 2011 in a single institution was performed. Patients' demographics, intraoperative features, postoperative complications, and variables for video recording and editing were collected. Compliance of key surgical steps was assessed using a checklist by two independent surgeons. Sixteen laparoscopic operations (seven right hemicolectomies and nine sigmoid colectomies) were recorded. Twelve (75%) were laparoscopic-assisted, and four (25%) were hand-assisted laparoscopic operations. Compliance with key surgical steps in laparoscopic right hemicolectomy and sigmoid colectomy was demonstrated in the majority of patients, with steps ranging in compliance from 42.9% to 100% and from 77.8% to 100%, respectively. The edited video had a median duration of 3 minutes 47 seconds (range, 1 minute 44 seconds-5 minutes 38 seconds) with a production time of nearly 1 hour and a resolution of 1440 × 1080 pixels. Key surgical steps during laparoscopic right hemicolectomy and sigmoid colectomy can be documented and edited into a short representative video. Standardization of this process should allow video documentation to improve quality in laparoscopic colon surgery.

  5. A system for beach video-monitoring: Beachkeeper plus

    Science.gov (United States)

    Brignone, Massimo; Schiaffino, Chiara F.; Isla, Federico I.; Ferrari, Marco

    2012-12-01

    A suitable knowledge of coastal systems, of their morphodynamic characteristics and their response to storm events and man-made structures is essential for littoral conservation and management. Nowadays webcams represent a useful device to obtain information from beaches. Video-monitoring techniques are generally site specific and softwares working with any image acquisition system are rare. Therefore, this work aims at submitting theory and applications of an experimental video monitoring software: Beachkeeper plus, a freeware non-profit software, can be employed and redistributed without modifications. A license file is provided inside software package and in the user guide. Beachkeeper plus is based on Matlab® and it can be used for the analysis of images and photos coming from any kind of acquisition system (webcams, digital cameras or images downloaded from internet), without any a-priori information or laboratory study of the acquisition system itself. Therefore, it could become a useful tool for beach planning. Through a simple guided interface, images can be analyzed by performing georeferentiation, rectification, averaging and variance. This software was initially operated in Pietra Ligure (Italy), using images from a tourist webcam, and in Mar del Plata (Argentina) using images from a digital camera. In both cases the reliability in different geomorphologic and morphodynamic conditions was confirmed by the good quality of obtained images after georeferentiation, rectification and averaging.

  6. Computer simulation of orthognathic surgery with video imaging

    Science.gov (United States)

    Sader, Robert; Zeilhofer, Hans-Florian U.; Horch, Hans-Henning

    1994-04-01

    Patients with extreme jaw imbalance must often undergo operative corrections. The goal of therapy is to harmonize the stomatognathic system and an aesthetical correction of the face profile. A new procedure will be presented which supports the maxillo-facial surgeon in planning the operation and which also presents the patient the result of the treatment by video images. Once an x-ray has been digitized it is possible to produce individualized cephalometric analyses. Using a ceph on screen, all current orthognathic operations can be simulated, whereby the bony segments are moved according to given parameters, and a new soft tissue profile can be calculated. The profile of the patient is fed into the computer by way of a video system and correlated to the ceph. Using the simulated operation the computer calculates a new video image of the patient which presents the expected postoperative appearance. In studies of patients treated between 1987-91, 76 out of 121 patients were able to be evaluated. The deviation in profile change varied between .0 and 1.6mm. A side effect of the practical applications was an increase in patient compliance.

  7. Automatic video monitoring system for assessment of Alzheimer's disease symptoms.

    Science.gov (United States)

    Romdhane, R; Mulin, E; Derreumeaux, A; Zouba, N; Piano, J; Lee, L; Leroi, I; Mallea, P; David, R; Thonnat, M; Bremond, F; Robert, P H

    2012-03-01

    In order to fully capture the complexity of the behavioural, functioning and cognitive disturbances in Alzheimer Disease (AD) and related disorders information and communication techniques (ICT), could be of interest. This article presents using 3 clinical cases the feasibility results of an automatic video monitoring system aiming to assess subjects involved in a clinical scenario. The study was conducted in an observation room equipped with everyday objects for use in activities of daily living. The overall aim of the clinical scenario was to enable the participants to undertake a set of daily tasks that could realistically be achieved in the setting of the observation room. The scenario was divided in three steps covering basic to more complex activities: (1) Directed activities, (2) Semi-directed activities, (3) Undirected ("free") activities. The assessment of each participant of the study was done with an automatic video monitoring system composed of a vision component and an event recognition component. The feasibility study involved three participants: two AD patients and one elderly control participant. The first result of the study was to demonstrate the feasibility of this new assessment method from both the patient and the technical points of view. During the first step the control participant performed all these activities faster than the two AD participants. During the second step of the scenario AD participants were not able to follow the correct order of the tasks and even omitted some of them. Finally during the last step of the scenario devoted to free activities the control participant chose one of the proposed activities (reading) and undertook this activity for almost the entire duration. In contrast, the two AD participants had more difficulties choosing one of the suggested activities and were not able to undertake any one activity in a sustained manner. The automatic video monitoring system presented here analyzes human behaviours and looks

  8. Quantitative sensory testing of persistent pain after video-assisted thoracic surgery lobectomy

    DEFF Research Database (Denmark)

    Wildgaard, Kim; Ringsted, TK; Hansen, HJ

    2011-01-01

    Background Video-assisted thoracic surgery (VATS) lobectomy may potentially reduce the risk of post-thoracotomy pain syndrome (PTPS). However, it may still carry a risk of intraoperative nerve damage and thereby development of PTPS. Thus, our aim was to present a detailed long-term neurophysiolog...

  9. Narcoanalysis of pneumonorestion with video-assisted thoracic surgery during one-lung ventilation

    Institute of Scientific and Technical Information of China (English)

    Lairong Sun; Lianbing Gu

    2012-01-01

    Objective: The aim of our study was to analyze the anesthesia of pneumonoresection in lung cancer patients with video-assisted thoracic surgery during one-lung ventilation. Methods: After fast-speed venous induced anesthesia, double-lumen bronchial catheter or endobronchial blocker tube were intubated in 551 patients, the position of double-lumen endobronchial tube or single lumen tube + endobronchial blocker tube was confirmed with fiber-optic bronchoscope after intubation. Interstitial positive pressure ventilation were used in all patients with video-assisted thoracic surgery (VATS) interstitial positive pressure ventilation, positive end expiratory pressure and continuous positive airway pressure in collapse lobers of lung were used in one lung ventilation, and ventilation parameters were adjusted necessarily. Results: 541 cases double-tubes bronchial catheter intubation and endobronchial blocker tube used by fiberscope were located very well. The level of SPO2, PEtCO2 could be maintained normal. Ten cases were forced to converse video-assisted thoracic surgery to thoracotomy because of 4 cases pulmonary adhesion, 4 cases severe pulmonary dysfunction hard to correct hyoxemia and 2 case abnormal anatomy respectively. Conclusion: Anesthesia key of video-assisted thoracic surgery is that double lung must separated completely. Effective management of one lung ventilation could make patients to pass perioperation smoothly. Long-time one lung ventilation such as pulmonary adhesion, severe pulmonary dysfunction should be considered to be relative contraindication.

  10. Persistent postsurgical pain after video-assisted thoracic surgery

    DEFF Research Database (Denmark)

    Wildgaard, Kim; Ringsted, T K; Jessen Hansen, Henrik;

    2016-01-01

    area within four well-defined domains of everyday activities. Psychological and sensory thermal tests did not predict persistent postoperative pain, except preoperative pin-prick sensitivity was higher in patients with PPP. Postoperative pain 7 days after surgery was significantly higher in PPP...

  11. A Miniaturized Video System for Monitoring Drosophila Behavior

    Science.gov (United States)

    Bhattacharya, Sharmila; Inan, Omer; Kovacs, Gregory; Etemadi, Mozziyar; Sanchez, Max; Marcu, Oana

    2011-01-01

    Long-term spaceflight may induce a variety of harmful effects in astronauts, resulting in altered motor and cognitive behavior. The stresses experienced by humans in space - most significantly weightlessness (microgravity) and cosmic radiation - are difficult to accurately simulate on Earth. In fact, prolonged and concomitant exposure to microgravity and cosmic radiation can only be studied in space. Behavioral studies in space have focused on model organisms, including Drosophila melanogaster. Drosophila is often used due to its short life span and generational cycle, small size, and ease of maintenance. Additionally, the well-characterized genetics of Drosophila behavior on Earth can be applied to the analysis of results from spaceflights, provided that the behavior in space is accurately recorded. In 2001, the BioExplorer project introduced a low-cost option for researchers: the small satellite. While this approach enabled multiple inexpensive launches of biological experiments, it also imposed stringent restrictions on the monitoring systems in terms of size, mass, data bandwidth, and power consumption. Suggested parameters for size are on the order of 100 mm3 and 1 kg mass for the entire payload. For Drosophila behavioral studies, these engineering requirements are not met by commercially available systems. One system that does meet many requirements for behavioral studies in space is the actimeter. Actimeters use infrared light gates to track the number of times a fly crosses a boundary within a small container (3x3x40 mm). Unfortunately, the apparatus needed to monitor several flies at once would be larger than the capacity of the small satellite. A system is presented, which expands on the actimeter approach to achieve a highly compact, low-power, ultra-low bandwidth solution for simultaneous monitoring of the behavior of multiple flies in space. This also provides a simple, inexpensive alternative to the current systems for monitoring Drosophila

  12. Submucosal Abscess of the Esophagus Caused by Piriform Sinus Fistula Treated with Transoral Video Laryngoscopic Surgery.

    Science.gov (United States)

    Koyama, Satoshi; Fujiwara, Kazunori; Morisaki, Tsuyoshi; Fukuhara, Takahiro; Kawamoto, Katsuyuki; Kitano, Hiroya; Takeuchi, Hiromi

    2016-01-01

    Piriform sinus fistula (PSF) is a rare branchial anomaly that causes repetitive acute suppurative thyroiditis or deep neck abscess. The definitive treatment of PSF is open neck surgery. However, such surgery has a cosmetic problem and a high risk of recurrence. Furthermore, identifying the fistula is difficult due to previous repetitive infections. We report a case of esophageal submucosal abscess caused by PSF treated with endoscopic mucosal incision. The patient underwent transoral video laryngoscopic surgery (TOVS), and endoscopy as well as fluoroscopy revealed complete closure of PSF without any complication. TOVS is a novel surgical technique for the definitive treatment of PSF with esophageal submucosal abscess.

  13. Multiple video sequences synchronization during minimally invasive surgery

    Science.gov (United States)

    Belhaoua, Abdelkrim; Moreau, Johan; Krebs, Alexandre; Waechter, Julien; Radoux, Jean-Pierre; Marescaux, Jacques

    2016-03-01

    Hybrid operating rooms are an important development in the medical ecosystem. They allow integrating, in the same procedure, the advantages of radiological imaging and surgical tools. However, one of the challenges faced by clinical engineers is to support the connectivity and interoperability of medical-electrical point-of-care devices. A system that could enable plug-and-play connectivity and interoperability for medical devices would improve patient safety, save hospitals time and money, and provide data for electronic medical records. In this paper, we propose a hardware platform dedicated to collect and synchronize multiple videos captured from medical equipment in real-time. The final objective is to integrate augmented reality technology into an operation room (OR) in order to assist the surgeon during a minimally invasive operation. To the best of our knowledge, there is no prior work dealing with hardware based video synchronization for augmented reality applications on OR. Whilst hardware synchronization methods can embed temporal value, so called timestamp, into each sequence on-the-y and require no post-processing, they require specialized hardware. However the design of our hardware is simple and generic. This approach was adopted and implemented in this work and its performance is evaluated by comparison to the start-of-the-art methods.

  14. [Video-assisted thoracic sympathectomy - the results from a center outpatient surgery program].

    Science.gov (United States)

    R Velho, Tiago; Junqueira, Nádia; Sena, André; Guerra, Nuno; Caldeira, João; Gallego, Javier; Nobre, Ângelo

    2016-01-01

    The outpatient surgery program from our department has started in 2014 to improve patient access to surgery and to reduce the surgical waitlist. Focused on the thoracic surgery, the most common intervention is the surgical treatment of primary hyperhidrosis by thoracic sympathectomy by video-assisted thoracoscopic surgery (VATS). It is performed according to the patient's symptoms, with section or application of surgical clips between R2-R5. Retrospective study including all the patients submitted to thoracic sympathectomy by video- -assisted thoracoscopy surgery from our department's outpatient surgery program from January 2014 to January 2016. In our outpatient program we performed 198 thoracic sympathectomy by VATS. The mean age of the patients was 32,8 years old. 63,6% of the patients were females and 36.4% were males. From the 198 endoscopic thoracic sympathectomy performed, 181 (91,4%) were performed bilatellary with section between R3-R5, 12 (6,1%) were performed with the application of surgical clips in R2-R4 and 3 (1.5%) could not be performed due to the presence of pleuropulmonary adhesions. One of the patients was re-operated due to recurrent symptoms and another patients had surgery to remove the surgical clips (bilaterally in R2) due to exaggerated abdominal compensatory hyperhidrosis. Three patients had pneumothorax. The surgical treatment of primary hyperhidrosis was the most frequent procedure in our outpatient surgery program. The procedure without the use of a thoracic drainage allowed its inclusion in the outpatient surgery program. Excluding 3 patients, all the patients were discharged within 12 hours after the surgery. The good results and the reduction of the surgical waitlist encourage the cardiothoracic outpatient surgery program.

  15. Perceptual coding of stereo endoscopy video for minimally invasive surgery

    Science.gov (United States)

    Bartoli, Guido; Menegaz, Gloria; Yang, Guang Zhong

    2007-03-01

    In this paper, we propose a compression scheme that is tailored for stereo-laparoscope sequences. The inter-frame correlation is modeled by the deformation field obtained by elastic registration between two subsequent frames and exploited for prediction of the left sequence. The right sequence is lossy encoded by prediction from the corresponding left images. Wavelet-based coding is applied to both the deformation vector fields and residual images. The resulting system supports spatio temporal scalability, while providing lossless performance. The implementation of the wavelet transform by integer lifting ensures a low computational complexity, thus reducing the required run-time memory allocation and on line implementation. Extensive psychovisual tests were performed for system validation and characterization with respect to the MPEG4 standard for video coding. Results are very encouraging: the PSVC system features the functionalities making it suitable for PACS while providing a good trade-off between usability and performance in lossy mode.

  16. Simultaneous monitoring of a collapsing landslide with video cameras

    Directory of Open Access Journals (Sweden)

    K. Fujisawa

    2008-01-01

    Full Text Available Effective countermeasures and risk management to reduce landslide hazards require a full understanding of the processes of collapsing landslides. While the processes are generally estimated from the features of debris deposits after collapse, simultaneous monitoring during collapse provides more insights into the processes. Such monitoring, however, is usually very difficult, because it is rarely possible to predict when a collapse will occur. This study introduces a rare case in which a collapsing landslide (150 m in width and 135 m in height was filmed with three video cameras in Higashi-Yokoyama, Gifu Prefecture, Japan. The cameras were set up in the front and on the right and left sides of the slide in May 2006, one month after a series of small slope failures in the toe and the formation of cracks on the head indicated that a collapse was imminent.

    The filmed images showed that the landslide collapse started from rock falls and slope failures occurring mainly around the margin, that is, the head, sides and toe. These rock falls and slope failures, which were individually counted on the screen, increased with time. Analyzing the images, five of the failures were estimated to have each produced more than 1000 m3 of debris, and the landslide collapsed with several surface failures accompanied by a toppling movement. The manner of the collapse suggested that the slip surface initially remained on the upper slope, and then extended down the slope as the excessive internal stress shifted downwards. Image analysis, together with field measurements using a ground-based laser scanner after the collapse, indicated that the landslide produced a total of 50 000 m3 of debris.

    As described above, simultaneous monitoring provides valuable information about landslide processes. Further development of monitoring techniques will help clarify landslide processes qualitatively as well as quantitatively.

  17. Wireless live streaming video of laparoscopic surgery: a bandwidth analysis for handheld computers.

    Science.gov (United States)

    Gandsas, Alex; McIntire, Katherine; George, Ivan M; Witzke, Wayne; Hoskins, James D; Park, Adrian

    2002-01-01

    Over the last six years, streaming media has emerged as a powerful tool for delivering multimedia content over networks. Concurrently, wireless technology has evolved, freeing users from desktop boundaries and wired infrastructures. At the University of Kentucky Medical Center, we have integrated these technologies to develop a system that can wirelessly transmit live surgery from the operating room to a handheld computer. This study establishes the feasibility of using our system to view surgeries and describes the effect of bandwidth on image quality. A live laparoscopic ventral hernia repair was transmitted to a single handheld computer using five encoding speeds at a constant frame rate, and the quality of the resulting streaming images was evaluated. No video images were rendered when video data were encoded at 28.8 kilobytes per second (Kbps), the slowest encoding bitrate studied. The highest quality images were rendered at encoding speeds greater than or equal to 150 Kbps. Of note, a 15 second transmission delay was experienced using all four encoding schemes that rendered video images. We believe that the wireless transmission of streaming video to handheld computers has tremendous potential to enhance surgical education. For medical students and residents, the ability to view live surgeries, lectures, courses and seminars on handheld computers means a larger number of learning opportunities. In addition, we envision that wireless enabled devices may be used to telemonitor surgical procedures. However, bandwidth availability and streaming delay are major issues that must be addressed before wireless telementoring becomes a reality.

  18. Coagulopathy and hemostatic monitoring in cardiac surgery

    DEFF Research Database (Denmark)

    Johansson, Pär I; Sølbeck, Sacha; Genet, Gustav

    2012-01-01

    Cardiac surgery with cardiopulmonary bypass (CPB) causes severe derangements in the hemostatic system, which in turn puts the patient at risks of microvascular bleeding. Excessive transfusion and surgical re-exploration after cardiac surgery are potentially associated with a number of adverse...

  19. The Optimiser: monitoring and improving switching delays in video conferencing

    NARCIS (Netherlands)

    Gunkel, S.; Jansen, A.J.; Kegel, I.; Bulterman, D.C.A.; Cesar Garcia, P.S.

    2014-01-01

    With the growing popularity of video communication systems, more people are using group video chat, rather than only one-to-one video calls. In such multi-party sessions, remote participants compete for the available screen space and bandwidth. A common solution is showing the current speaker promin

  20. Real time video analysis to monitor neonatal medical condition

    Science.gov (United States)

    Shirvaikar, Mukul; Paydarfar, David; Indic, Premananda

    2017-05-01

    One in eight live births in the United States is premature and these infants have complications leading to life threatening events such as apnea (pauses in breathing), bradycardia (slowness of heart) and hypoxia (oxygen desaturation). Infant movement pattern has been hypothesized as an important predictive marker for these life threatening events. Thus estimation of movement along with behavioral states, as a precursor of life threatening events, can be useful for risk stratification of infants as well as for effective management of disease state. However, more important and challenging is the determination of the behavioral state of the infant. This information includes important cues such as sleep position and the status of the eyes, which are important markers for neonatal neurodevelopment state. This paper explores the feasibility of using real time video analysis to monitor the condition of premature infants. The image of the infant can be segmented into regions to localize and focus on specific areas of interest. Analysis of the segmented regions can be performed to identify different parts of the body including the face, arms, legs and torso. This is necessary due to real-time processing speed considerations. Such a monitoring system would be of great benefit as an aide to medical staff in neonatal hospital settings requiring constant surveillance. Any such system would have to satisfy extremely stringent reliability and accuracy requirements, before it can be deployed in a hospital care unit, due to obvious reasons. The effect of lighting conditions and interference will have to be mitigated to achieve such performance.

  1. Video. Pure natural orifice transluminal endoscopic surgery (NOTES) cholecystectomy.

    Science.gov (United States)

    Bessler, Marc; Gumbs, Andrew A; Milone, Luca; Evanko, John C; Stevens, Peter; Fowler, Dennis

    2010-09-01

    Enthusiasm for natural orifice transluminal endoscopic surgery (NOTES) has been partly tempered by the reality that most NOTES procedures to date have been laparoscopically assisted. After safely performing transvaginal cholecystectomy in an IACUC-approved porcine model, the authors embarked on an institution review board (IRB)-approved protocol for ultimate performance of pure NOTES cholecystectomy in humans. They describe their experience performing a true NOTES transvaginal cholecystectomy after safely accomplishing three laparoscopically assisted or hybrid procedures in humans. One of the patients was a 35-year-old woman presenting with symptoms of biliary colic. Ultrasound confirmed gallstones, and her liver enzymes were normal. Pneumoperitoneum to 15 mmHg was obtained via a transvaginal trocar placed through a colpotomy made under direct vision. A double-channel endoscope then was advanced into the abdomen. To overcome the retracting limitations of currently available endoscopes, the authors used an extra-long 5-mm articulating retractor placed into the abdomen via a separate colpotomy made under direct vision using the flexible endoscope in a retroflexed position. Endoscopically placed clips were used for control of both the cystic duct and the artery. These techniques obviated the need for any transabdominally placed instruments or needles. This patient was the first to undergo a completely NOTES cholecystectomy at the authors' institution, and to their knowledge, in the United States. She was discharged on the day of surgery and at this writing has not experienced any complication after 1 month of follow-up evaluation. Performance of NOTES transvaginal cholecystectomy without aid of laparoscopic or needleoscopic instruments is feasible and safe for humans. Additional experience with this technique are required before studies comparing it with standard laparoscopy and hybrid techniques are appropriate.

  2. High definition in minimally invasive surgery: a review of methods for recording, editing, and distributing video.

    Science.gov (United States)

    Kelly, Christopher R; Hogle, Nancy J; Landman, Jaime; Fowler, Dennis L

    2008-09-01

    The use of high-definition cameras and monitors during minimally invasive procedures can provide the surgeon and operating team with more than twice the resolution of standard definition systems. Although this dramatic improvement in visualization offers numerous advantages, the adoption of high definition cameras in the operating room can be challenging because new recording equipment must be purchased, and several new technologies are required to edit and distribute video. The purpose of this review article is to provide an overview of the popular methods for recording, editing, and distributing high-definition video. This article discusses the essential technical concepts of high-definition video, reviews the different kinds of equipment and methods most often used for recording, and describes several options for video distribution.

  3. Advances in Uniportal Video-Assisted Thoracoscopic Surgery: Pushing the Envelope.

    Science.gov (United States)

    Gonzalez-Rivas, Diego; Yang, Yang; Ng, Calvin

    2016-05-01

    Uniportal video-assisted thoracic surgery (VATS) represents a radical change in the approach to lung resection compared with conventional VATS. Because the placement of the surgical instruments and the camera is done through the same incision, uniportal VATS can pose a challenge for both the surgeon and the assistant. Recent industry improvements have made single-port VATS easier to learn. We can expect more developments of subcostal or embryonic natural orifice translumenal endoscopic surgery access, improvements in 3D image systems, single-port robotics, and wireless cameras. The advances in digital technology may facilitate the adoption of the uniportal VATS technique.

  4. Photoacoustic monitoring of clot formation during surgery and tumor surgery

    Science.gov (United States)

    Juratli, Mazen A.; Galanzha, Ekaterina I.; Sarimollaoglu, Mustafa; Nedosekin, Dmitry A.; Suen, James Y.; Zharov, Vladimir P.

    2013-03-01

    When a blood vessel is injured, the normal physiological response of the body is to form a clot (thrombus) to prevent blood loss. Alternatively, even without injury to the blood vessel, the pathological condition called thromboembolism may lead to the formation of circulating blood clots (CBCs), also called emboli, which can clog blood vessels throughout the body. Veins of the extremities (venous thromboembolism), lungs (pulmonary embolism ), brain (embolic stroke), heart (myocardial infarction), kidneys, and gastrointestinal tract are often affected. Emboli are also common complications of infection, inflammation, cancer, surgery, radiation and coronary artery bypass grafts. Despite the clear medical significance of CBCs, however, little progress has been made in the development of methods for real-time detection and identification of CBCs. To overcome these limitations, we developed a new modification of in vivo photoacoustic (PA) flow cytometry (PAFC) for real-time detection of white, red, and mixed clots through a transient decrease, increase or fluctuation of PA signal amplitude, respectively. In this work, using PAFC and mouse models, we present for the first time direct evidence that some medical procedures, such as conventional or cancer surgery may initiate the formation of CBCs. In conclusion, the PA diagnostic platform can be used in real-time to define risk factors for cardiovascular diseases, assist in the prognosis and potential prevention of stroke by using a well-timed therapy or as a clot count as a marker of therapy efficacy.

  5. Video-based beam position monitoring at CHESS

    Science.gov (United States)

    Revesz, Peter; Pauling, Alan; Krawczyk, Thomas; Kelly, Kevin J.

    2012-10-01

    CHESS has pioneered the development of X-ray Video Beam Position Monitors (VBPMs). Unlike traditional photoelectron beam position monitors that rely on photoelectrons generated by the fringe edges of the X-ray beam, with VBPMs we collect information from the whole cross-section of the X-ray beam. VBPMs can also give real-time shape/size information. We have developed three types of VBPMs: (1) VBPMs based on helium luminescence from the intense white X-ray beam. In this case the CCD camera is viewing the luminescence from the side. (2) VBPMs based on luminescence of a thin (~50 micron) CVD diamond sheet as the white beam passes through it. The CCD camera is placed outside the beam line vacuum and views the diamond fluorescence through a viewport. (3) Scatter-based VBPMs. In this case the white X-ray beam passes through a thin graphite filter or Be window. The scattered X-rays create an image of the beam's footprint on an X-ray sensitive fluorescent screen using a slit placed outside the beam line vacuum. For all VBPMs we use relatively inexpensive 1.3 Mega-pixel CCD cameras connected via USB to a Windows host for image acquisition and analysis. The VBPM host computers are networked and provide live images of the beam and streams of data about the beam position, profile and intensity to CHESS's signal logging system and to the CHESS operator. The operational use of VBPMs showed great advantage over the traditional BPMs by providing direct visual input for the CHESS operator. The VBPM precision in most cases is on the order of ~0.1 micron. On the down side, the data acquisition frequency (50-1000ms) is inferior to the photoelectron based BPMs. In the future with the use of more expensive fast cameras we will be able create VBPMs working in the few hundreds Hz scale.

  6. Use of low-cost video recording device in reflective practice in cataract surgery.

    Science.gov (United States)

    Bhogal, Maninder M; Angunawela, Romesh I; Little, Brian C

    2010-04-01

    Reflective surgical practice is invaluable for surgeons at all levels of experience. For trainees in particular, every surgical opportunity must be optimized for its learning potential. Recording and reviewing cataract surgery is an invaluable tool. We describe a video recording device that has the advantages of ease of use; low cost; portability; and ease of review, editing, and dissemination, all of which encourage regular use and reflective surgical practice. Copyright (c) 2010 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.

  7. Needlescopic video-assisted thoracic surgery for reversal of thoracic sympathectomy.

    Science.gov (United States)

    Wong, Randolph H L; Ng, Calvin S H; Wong, Jasper K W; Tsang, Susanna

    2012-03-01

    Thoracic sympathectomy is a commonly performed surgical procedure for the treatment of palmar hyperhidrosis. However, one major complication of such a procedure is compensatory truncal hyperhidrosis. We describe an extreme case of compensatory truncal hyperhidrosis and anhidrosis over the head and neck region which led to a heatstroke. Bilateral reoperative needlescopic video-assisted thoracic surgery was performed for the reversal of thoracic sympathectomy with an interposition intercostal nerve graft. The patient's truncal hyperhidrosis resolved gradually over 1 month following the reversal procedure.

  8. Is Video-Assited Thoracoscopic Surgery Superior to Limited Axillary Thoracotomy in the Management of Spontaneous Pneumothorax?

    Directory of Open Access Journals (Sweden)

    Meaghen J Hyland

    2001-01-01

    Full Text Available OBJECTIVE: To evaluate bullectomy and pleurectomy in the treatment of spontaneous pneumothorax (PNO using video-assisted thoracoscopic surgery (VATS, and to compare the outcome with that of the same procedure performed using limited axillary thoracotomy (LAT.

  9. Intraoperative monitoring by imaging and electrophysiological techniques during giant intracranial aneurysm surgery.

    Science.gov (United States)

    Durand, A; Penchet, G; Thines, L

    2016-02-01

    Difficulties in giant intracranial aneurysm surgery are the consequence of aneurysmal wall histology and the complex angioarchitecture of the vascular tree. In order to reduce complications and risks of those procedures, various imaging and electrophysiological techniques can be implemented perioperatively. The authors review the principles, goals and main results in this context of micro-Doppler and flowmeter techniques, near-infrared spectroscopy, operative microscope-integrated indocyanine green video-angiography, neuro-endoscopy, selective intraoperative angiography and electrophysiological monitoring. Copyright © 2015 Elsevier Masson SAS. All rights reserved.

  10. Automatic real-time tracking of fetal mouth in fetoscopic video sequence for supporting fetal surgeries

    Science.gov (United States)

    Xu, Rong; Xie, Tianliang; Ohya, Jun; Zhang, Bo; Sato, Yoshinobu; Fujie, Masakatsu G.

    2013-03-01

    Recently, a minimally invasive surgery (MIS) called fetoscopic tracheal occlusion (FETO) was developed to treat severe congenital diaphragmatic hernia (CDH) via fetoscopy, by which a detachable balloon is placed into the fetal trachea for preventing pulmonary hypoplasia through increasing the pressure of the chest cavity. This surgery is so dangerous that a supporting system for navigating surgeries is deemed necessary. In this paper, to guide a surgical tool to be inserted into the fetal trachea, an automatic approach is proposed to detect and track the fetal face and mouth via fetoscopic video sequencing. More specifically, the AdaBoost algorithm is utilized as a classifier to detect the fetal face based on Haarlike features, which calculate the difference between the sums of the pixel intensities in each adjacent region at a specific location in a detection window. Then, the CamShift algorithm based on an iterative search in a color histogram is applied to track the fetal face, and the fetal mouth is fitted by an ellipse detected via an improved iterative randomized Hough transform approach. The experimental results demonstrate that the proposed automatic approach can accurately detect and track the fetal face and mouth in real-time in a fetoscopic video sequence, as well as provide an effective and timely feedback to the robot control system of the surgical tool for FETO surgeries.

  11. Feasibility of 3-dimensional video-assisted thoracic surgery (3D-VATS) for pulmonary resection.

    Science.gov (United States)

    Dickhoff, Chris; Li, Wilson W; Symersky, Petr; Hartemink, Koen J

    2015-01-01

    Two-dimensional video-assisted thoracic surgery (2D-VATS) has gained its position in daily practise. Although very useful, its two-dimensional view has its drawbacks when performing pulmonary resections. We report our first experience with 3-dimensional video-assisted surgery (3D-VATS). Advantages and differences with 2D-VATS and robotic surgery (RS) are discussed. To evaluate feasibility, we scheduled patients for surgery by 3D-VATS who would normally be treated with 2D-VATS. The main difference of the equipment in 3D-VATS compared with former VATS equipment, is the flexible camera-tip (100-degrees) and the necessary 3D-glasses. Four patients were successfully operated for anatomic pulmonary resections. On-the-structure dissection was easily performed and with the flexible camera-tip, a perfect view can be obtained, with clear visualisation of important (hilar) structures. These features highly facilitate the surgeon in tissue preparation and recognition of the dissection planes. In our opinion, 3D-VATS is superior to 2D-VATS for performing anatomic pulmonary resection and we expect an improvement in terms of operation time and learning curve. Furthermore, it is a valuable alternative for RS at lower costs.

  12. Intraoperative monitoring during surgery for hypoglossal schwannoma.

    Science.gov (United States)

    Ishikawa, Mami; Kusaka, Gen; Takashima, Kouichi; Kamochi, Haruna; Shinoda, Soji

    2010-08-01

    A 54-year-old man presented with an intracranial schwannoma of the hypoglossal nerve between the medulla and the left hypoglossal canal. The condylar fossa approach was used with intra-operative electromyography (EMG) monitoring of the lower cranial nerves. The tumor was then removed carefully without decreasing the tongue EMG responses. EMG monitoring enabled us to remove the tumor while maintaining the function of the hypoglossal nerve. Tongue EMG was easily recorded by stimulating the hypoglossal nerve fibers, which was useful in identifying the hypoglossal nerve and evaluating its function. This suggests that tongue EMG is a useful monitoring tool to enhance neurological outcome following removal of tumors in this region.

  13. Monitoring and improving care in thoracic surgery

    OpenAIRE

    Numan, R.C.

    2016-01-01

    Quality of Care (QoC) plays a central role in the way healthcare is delivered. In the world of thoracic surgery for lung cancer, surgeons are faced with complex and sometimes high-risk surgical resections on an aging patient population with an increasing incidence of frail physical health. This increasing complexity demands a multidisciplinary approach rearranging pre-, peri- and postoperative care in a way safety, efficiency and high quality are guaranteed. The safety and quality of healthca...

  14. Learning neuroendoscopy with an exoscope system (video telescopic operating monitor): Early clinical results

    Science.gov (United States)

    Parihar, Vijay; Yadav, Y. R.; Kher, Yatin; Ratre, Shailendra; Sethi, Ashish; Sharma, Dhananjaya

    2016-01-01

    Context: Steep learning curve is found initially in pure endoscopic procedures. Video telescopic operating monitor (VITOM) is an advance in rigid-lens telescope systems provides an alternative method for learning basics of neuroendoscopy with the help of the familiar principle of microneurosurgery. Aims: The aim was to evaluate the clinical utility of VITOM as a learning tool for neuroendoscopy. Materials and Methods: Video telescopic operating monitor was used 39 cranial and spinal procedures and its utility as a tool for minimally invasive neurosurgery and neuroendoscopy for initial learning curve was studied. Results: Video telescopic operating monitor was used in 25 cranial and 14 spinal procedures. Image quality is comparable to endoscope and microscope. Surgeons comfort improved with VITOM. Frequent repositioning of scope holder and lack of stereopsis is initial limiting factor was compensated for with repeated procedures. Conclusions: Video telescopic operating monitor is found useful to reduce initial learning curve of neuroendoscopy.

  15. Vital sign monitoring utilizing Eulerian video magnification and thermography.

    Science.gov (United States)

    Aubakir, Bauyrzhan; Nurimbetov, Birzhan; Tursynbek, Iliyas; Varol, Huseyin Atakan

    2016-08-01

    In this paper we present a proof of concept for non-contact extraction of vital signs using RGB and thermal images obtained from a smart phone. Using our method, heart rate, respiratory rate and forehead temperature can be measured concurrently. Face detection and tracking is leveraged in order to allow natural motion of patients. Heart rate is estimated via processing of visible band RGB video using Eulerian Video Magnification technique. Respiratory rate and the temperature is measured using thermal video. Experiments conducted with 11 healthy subjects indicate that heart rate and respiration rate can be measured with 92 and 94 percent accuracy, respectively.

  16. Development and application of remote video monitoring system for combine harvester based on embedded Linux

    Science.gov (United States)

    Chen, Jin; Wang, Yifan; Wang, Xuelei; Wang, Yuehong; Hu, Rui

    2017-01-01

    Combine harvester usually works in sparsely populated areas with harsh environment. In order to achieve the remote real-time video monitoring of the working state of combine harvester. A remote video monitoring system based on ARM11 and embedded Linux is developed. The system uses USB camera for capturing working state video data of the main parts of combine harvester, including the granary, threshing drum, cab and cut table. Using JPEG image compression standard to compress video data then transferring monitoring screen to remote monitoring center over the network for long-range monitoring and management. At the beginning of this paper it describes the necessity of the design of the system. Then it introduces realization methods of hardware and software briefly. And then it describes detailedly the configuration and compilation of embedded Linux operating system and the compiling and transplanting of video server program are elaborated. At the end of the paper, we carried out equipment installation and commissioning on combine harvester and then tested the system and showed the test results. In the experiment testing, the remote video monitoring system for combine harvester can achieve 30fps with the resolution of 800x600, and the response delay in the public network is about 40ms.

  17. Real-time video fusion using a distributed architecture in robotic surgery

    Science.gov (United States)

    Kwartowitz, David M.; Rettmann, Maryam E.; Holmes, David R., III; Robb, Richard A.

    2009-02-01

    The use of medical robotics has been increasing in recent years. This increase in popularity can be attributed to the improvement in dexterity robots provide over traditional laparoscopy, as well as the increasing number of applications of robotic surgery. The daVinci from Intuitive Surgical, one of the more commonly used robotic surgery systems, relies on stereo laparoscopic video for guidance, which restricts visualization to only surface anatomy. Oftentimes the localization of subsurface anatomic structures is critical to the success of surgical intervention. The implementation of image guidance in medical robotics adds the ability to see into the surface; however, current implementations are restrictive in terms of flexibility or scalability, especially in the ability to process real-time video data. We present a system architecture which allows for use of multiple computers through a centralized database; which can fuse additional information to the real-time video stream. This architecture is independent of hardware or software and is extensible to a large number of clinical applications.

  18. The Surgeon's View: Comparison of Two Digital Video Recording Systems in Veterinary Surgery.

    Science.gov (United States)

    Giusto, Gessica; Caramello, Vittorio; Comino, Francesco; Gandini, Marco

    2015-01-01

    Video recording and photography during surgical procedures are useful in veterinary medicine for several reasons, including legal, educational, and archival purposes. Many systems are available, such as hand cameras, light-mounted cameras, and head cameras. We chose a reasonably priced head camera that is among the smallest video cameras available. To best describe its possible uses and advantages, we recorded video and images of eight different surgical cases and procedures, both in hospital and field settings. All procedures were recorded both with a head-mounted camera and a commercial hand-held photo camera. Then sixteen volunteers (eight senior clinicians and eight final-year students) completed an evaluation questionnaire. Both cameras produced high-quality photographs and videos, but observers rated the head camera significantly better regarding point of view and their understanding of the surgical operation. The head camera was considered significantly more useful in teaching surgical procedures. Interestingly, senior clinicians tended to assign generally lower scores compared to students. The head camera we tested is an effective, easy-to-use tool for recording surgeries and various veterinary procedures in all situations, with no need for assistance from a dedicated operator. It can be a valuable aid for veterinarians working in all fields of the profession and a useful tool for veterinary surgical education.

  19. [Single-port video-assisted thoracic surgery in an awake patient].

    Science.gov (United States)

    Alonso-García, F J; Navarro-Martínez, J; Gálvez, C; Rivera-Cogollos, M J; Sgattoni, C; Tarí-Bas, I M

    2016-03-01

    Video-assisted thoracic surgery is traditionally carried out with general anaesthesia and endotracheal intubation with double lumen tube. However, in the last few years procedures, such as lobectomies, are being performed with loco-regional anaesthesia, with and without sedation, maintaining the patient awake and with spontaneous breathing, in order to avoid the inherent risks of general anaesthesia, double lumen tube intubation and mechanical ventilation. This surgical approach has also shown to be effective in that it allows a good level of analgesia, maintaining a correct oxygenation and providing a better post-operative recovery. Two case reports are presented in which video-assisted thoracic surgery was used, a lung biopsy and a lung resection, both with epidural anaesthesia and maintaining the patient awake and with spontaneous ventilation, as part of a preliminary evaluation of the anaesthetic technique in this type of surgery. Copyright © 2013 Sociedad Española de Anestesiología, Reanimación y Terapéutica del Dolor. Publicado por Elsevier España, S.L.U. All rights reserved.

  20. Video-assisted thoracoscopic surgery versus open lobectomy for primary non-small-cell lung cancer

    DEFF Research Database (Denmark)

    Falcoz, Pierre-Emmanuel; Puyraveau, Marc; Thomas, Pascal-Alexandre

    2016-01-01

    OBJECTIVES: Video-assisted thoracoscopic anatomical resections are increasingly used in Europe to manage primary lung cancer. The purpose of this study was to compare the outcome following thoracoscopic versus open lobectomy in case-matched groups of patients from the European Society of Thoracic...... Surgeon (ESTS) database. METHODS: All patients having lobectomy as the primary procedure via thoracoscopy [video-assisted thoracoscopic surgery (VATS)-L)] or thoracotomy (TH-L) were identified in the ESTS database (January 2007 to December 2013). A propensity score was constructed using several patients......' baseline characteristics. The matching using the propensity score was responsible for the minimization of selection bias. A propensity score-matched analysis was performed to compare the incidence of postoperative major complications (according to the ESTS database definitions) and mortality at hospital...

  1. Video-assisted Thoracoscopic Surgery in a 1-month-old Infant with Pleural Empyema

    Directory of Open Access Journals (Sweden)

    Cheung Leung

    2006-01-01

    Full Text Available Pleural empyema is a frequent complication of bacterial pneumonia in childhood but is rare in neonates. Various modalities of treatment from intravenous antibiotics, chest tube drainage, intrapleural fibrinolytic agent installation, video-assisted thoracostomy to surgical decortication have been suggested to treat different stages of empyema in children, but management of progressive empyema in neonates is still at the stage of antimicrobial therapy and tube thoracostomy. Here, we report a 1-month-old infant with staphy-lococcal pneumonia complicated with multiloculated empyema who was successfully treated with video-assisted thoracoscopic surgery (VATS after 4 days of chest tube drainage and parenteral antibiotics. The patient's condition improved rapidly after the operation and the antimicrobial therapy was continued for 3 weeks. He was asymptomatic and thriving at follow-up 1 year later. Chest radiography at 1 month was free of any lesion. This case suggests that VATS can be a safe and effective treatment for neonatal empyema.

  2. Video conferencing in surgery: an evolving tool for education and preceptorships.

    Science.gov (United States)

    Ball, K; Perez, J; Facoog, D O; Theslof, G

    1995-01-01

    The advent of advanced laparoscopic procedures has provided unquestioned patient benefits but has also engendered some significant concerns about whether surgical team members are able to stay current in this everchanging arena. The interactive video conferencing program at Doctors Hospital in Columbus, Ohio, was developed to improve the education and preceptoring of surgical teams. This article describes the evolution of the program and its basic technology and connectivity. Physicians and other health care professionals began to accept this teaching alternative as usage increased. Based on this initial experience, video conferencing in surgery appears to be a valuable and exciting method of enhancing the educational process and augmenting the preceptorship experience. Further studies need to be conducted to determine the actual cost-effectiveness of this teaching method.

  3. Pulmonary arterioplasty using video-assisted thoracic surgery mechanical suture technique

    Science.gov (United States)

    Xu, Xin; Huang, Jun; Yin, Weiqiang; Zhang, Xin; Chen, Hanzhang; Mo, Lili

    2016-01-01

    Lung cancer invading pulmonary trunk is a locally advanced condition, which may indicate poor prognosis. Surgical resection of the lesion can significantly improve survival for some patients. Lobectomy/Pneumonectomy with pulmonary arterioplasty via thoracotomy were generally accepted and used in the past. As the rapid development of minimally invasive techniques and devices, pulmonary arterioplasty is feasible via video-assisted thoracic surgery (VATS). However, few studies have reported the VATS surgical techniques. In this study, we reported the techniques of pulmonary arterioplasty via VATS. PMID:27076961

  4. Using virtual reality simulation to assess competence in video-assisted thoracoscopic surgery (VATS) lobectomy

    DEFF Research Database (Denmark)

    Jensen, Katrine; Bjerrum, Flemming; Hansen, Henrik Jessen

    2017-01-01

    for a virtual reality simulator test of a video-assisted thoracoscopic surgery (VATS) lobectomy of a right upper lobe. METHODS: Participants with varying experience in VATS lobectomy were included. They were familiarized with a virtual reality simulator (LapSim(®)) and introduced to the steps of the procedure...... % false positives) and failed four of the experienced surgeons (29 % false negatives). CONCLUSION: This study is the first to establish validity evidence for a VATS right upper lobe lobectomy virtual reality simulator test. Several simulator metrics demonstrated significant differences between novices...

  5. Monitored Anaesthesia Care (MAC in antalgic surgery

    Directory of Open Access Journals (Sweden)

    Giovanni Maria Pisanu

    2011-09-01

    Full Text Available The use of surgical techniques for pain relief in the treatment of chronic-persistent pain unresponsive to drug therapy is experiencing a growing spread application in algology. These techniques have set themselves the goal of removing the pain after treatment. Therefore, not always, percutaneous or open procedures are carried out with due precaution necessary to alleviate the patient discomfort and suffering during the surgical intervention. We present our personal experience in the use of this technique Monitored Anaesthesia Care (MAC for patients undergoing surgical treatment of pain management at our Regional Center of Pain Management.

  6. Monitoring of Diabetic Retinopathy in relation to Bariatric Surgery

    DEFF Research Database (Denmark)

    Brynskov, Troels; Laugesen, Caroline Schmidt; Svenningsen, Annette Lykke

    2016-01-01

    BACKGROUND: To investigate the need for closer perioperative monitoring of diabetic retinopathy in patients with type 2 diabetes undergoing bariatric surgery. METHODS: Prospective observational clinical study of 56 patients with type 2 diabetes undergoing bariatric surgery. The patients were...... examined with 7-field fundus images and optical coherence tomography scans 2 weeks before and 1, 3, 6 and 12 months after bariatric surgery. Worsening was defined as a two-step change in the Wisconsin Epidemiologic Study of Diabetic Retinopathy scale or appearance or worsening of macular edema...... preoperatively where HbA1c was 6.4 ± 1.9 %. CONCLUSIONS: Diabetic retinopathy was clinically stable after bariatric surgery, and none of the observed changes would have resulted in a changed screening interval at our center. This supports adherence to regular diabetic retinopathy screening guidelines following...

  7. [Monitoring and conditioning in plastic and reconstructive ENT-surgery].

    Science.gov (United States)

    Dacho, A; Dietz, A

    2006-11-01

    Plastic and reconstructive ENT surgery serves for reconstruction of form and function. Frequent indications in ENT surgery are the covering of large tissue defects after tumor operations, firing and/or explosion injuries, accidents, burns or massive infections. A high revision rate of up to 20 % in selective patient groups show that more knowledge of both monitoring and ischemia-/reperfusion mechanisms is necessary. Besides improved monitor proceedings biochemical cell procedures in pedicled and free flaps are getting more focused. In the last years certain physical and medical factors appear, which have influence on the long-term surviving of a pedicled or free flap, e. g. pre- and/or postconditioning. The increasing knowledge of changes in perfusion and oxygenation, which prevail in the flap, as well as different options of physical and pharmacological therapies permit a promising view into the future, in order to achieve an improved surviving of a pedicled or free flap in combination with improved monitor proceedings.

  8. Endoscopic video-assisted breast surgery: procedures and short-term results.

    Science.gov (United States)

    Yamashita, Koji; Shimizu, Kazuo

    2006-08-01

    We devised a new endoscopic operation for breast diseases. We report the aesthetic and treatment results of this procedure. A 2.5-cm axillary skin incision was made for a single approaching port, and a working space was created by retraction. Under video assistance, we resected the mammary gland partially or totally, and in the case of malignant diseases we also performed a sentinel lymph node biopsy and dissected axillary lymph nodes (levels I and II). From December 2001 through April 2005, we performed endoscopic video-assisted breast surgery (VABS) in 100 patients with breast diseases. The diseases were benign in 18 patients and malignant in 82 patients. Of the malignant diseases, 80 underwent breast-conserving surgery and 2 underwent skin-sparing mastectomy. There was no significant difference in operation time, blood loss, or blood examinations related with the acute phase reaction between VABS and conventional breast-conserving procedures. All surgical margins were negative on examination of permanent histological preparations. The wounds healed without noticeable scarring. The original shapes of the breast were preserved. All patients expressed their great satisfaction with VABS. VABS can be considered as a surgical option and can provide aesthetic advantages for patients with breast disease.

  9. Surgical management for thoracic spinal tuberculosis posterior only versus anterior video-assisted thoracoscopic surgery.

    Directory of Open Access Journals (Sweden)

    Weiye Zhong

    Full Text Available A comparable retrospective study.To compare the clinical outcomes of surgical treatment by posterior only and anterior video-assisted thoracoscopic surgery for thoracic spinal tuberculosis (TSTB.145 patients with TSTB treated by two different surgical procedures in our institution from June 2001 to June 2014 were studied. All cases were retrospectively analyzed and divided into two groups according to the given treatments: 75 cases (32F/43M in group A performed single-stage posterior debridement, transforaminal thoracic interbody fusion and instrumentation, and 70 cases (30F/40M in group B underwent anterior video-assisted thoracoscopic surgery (VATS. Clinical and radiographic results in the two groups were analyzed and compared.Patients in group A and B were followed up for an average of 4.6±1.8, 4.4±1.2 years, respectively. There was no statistically significant difference between groups in terms of the operation time, blood loss, bony fusion, neurological recovery and the correction angle of kyphotic deformity (P>0.05. Fewer pulmonary complications were observed in group A. Good clinical outcomes were achieved in both groups.Both the anterior VATS and posterior approaches can effectively treat thoracic tuberculosis. Nevertheless, the posterior approach procedure obtained less morbidity and complications than the other.

  10. One lung ventilation strategies for infants and children undergoing video assisted thoracoscopic surgery

    Directory of Open Access Journals (Sweden)

    Teddy Suratos Fabila

    2013-01-01

    Full Text Available The advantages of video assisted thoracoscopic surgery (VATS in children have led to its increased usage over the years. VATS, however, requires an efficient technique for one lung ventilation. Today, there is an increasing interest in developing the technique for lung isolation to meet the anatomic and physiologic variations in infants and children. This article aims to provide an updated and comprehensive review on one-lung ventilation strategies for infants and children undergoing VATS. Search of terms such as ′One lung ventilation for infants and children′, ′Video assisted thoracoscopic surgery for infants and children′, and ′Physiologic changes during one lung ventilation for infants and children′ were used. The search mechanics and engines for this review included the following: Kandang Kerbau Hospital (KKH eLibrary, PubMed, Ovid Medline, Cochrane Central Register of Controlled Trials, and Cochrane Database of Systematic Reviews. During the search the author focused on significant current and pilot randomized control trials, case reports, review articles, and editorials. Critical decision making on what device to use based on the age, weight, and pathology of the patient; and how to use it for lung isolation are discussed in this article. Furthermore, additional information regarding the advantages, limitations, techniques of insertion and maintenance of each device for one lung ventilation in infants and children were the highlights in this article.

  11. Multimodal Signal Comparison with the Aim of Video Content and Quality Monitoring for IPTV Application

    Directory of Open Access Journals (Sweden)

    Jila Hosseinkhani

    2013-05-01

    Full Text Available In the present study the video content and quality monitoring issue is studied. For this purpose, the contents and qualities of two video streams must be compared with each other. It is clear that achieving to a monitoring system will be possible by utilizing multimodal information from the video streams. Therefore, simultaneous evaluation of the image and audio signals is vital. This comparative study for image signal is based on the extraction of useful features such as texture using Gabor filter. In order to create differences between two video streams in terms of content, some frames are added to or eliminated from the original video. Moreover, distortions such as blurring, packet loss and adding three types of noises are done as attacks to the original videos in order to make difference in terms of quality. Three types of additive noises such as Gaussian, Poisson and Speckel are used to produce noisy images for the purpose of comparing with the original ones. The audio signals of the two compared video streams are evaluated using PESQ similarity measurement. Finally, these parameters are characterized on the basis of some statistical standard image quality matrices like SNR, Correlation coefficient and SSIM. The results illustrate that the proposed method is effective and highly reliable against various kinds of noises.

  12. Hemodynamic responses to endotracheal intubation performed with video and direct laryngoscopy in patients scheduled for major cardiac surgery

    OpenAIRE

    Sarkılar, Gamze; Sargın, Mehmet; Sarıtaş, Tuba Berra; Borazan, Hale; Gök, Funda; Kılıçaslan, Alper; Otelcioğlu, Şeref

    2015-01-01

    This study aims to compare the hemodynamic responses to endotracheal intubation performed with direct and video laryngoscope in patients scheduled for cardiac surgery and to assess the airway and laryngoscopic characteristics. One hundred ten patients were equally allocated to either direct Macintosh laryngoscope (n = 55) or indirect Macintosh C-MAC video laryngoscope (n = 55). Systolic, diastolic, and mean arterial pressure, and heart rate were recorded prior to induction anesthesia, and imm...

  13. Left video-assisted thoracoscopic surgery esophagectomy in a patient with situs inversus totalis and Kartagener syndrome.

    Science.gov (United States)

    Peel, John; Darling, Gail

    2014-08-01

    A 67-year-old man with situs inversus totalis and Kartagener syndrome was diagnosed with esophageal adenocarcinoma after presenting with chronic gastroesophageal reflux. Resection of the tumor was done by minimally invasive Ivor-Lewis esophagectomy using a left video-assisted thoracoscopic surgery approach, rather than the typical right video-assisted thoracoscopic surgery. Patients with situs inversus totalis may be considered for fully minimally invasive esophagectomy with laparoscopic gastric mobilization and video-assisted thoracoscopic surgery esophagectomy with an intrathoracic anastomosis using a similarly opposite-sided approach. Patients with Kartagener syndrome are also at increased risk for respiratory tract infections. This should be considered in the perioperative period, as well as when considering induction chemoradiation therapy.

  14. Single-port video-assisted thoracic surgery for early lung cancer: initial experience in Japan

    Science.gov (United States)

    Takeuchi, Shingo; Usuda, Jitsuo

    2016-01-01

    Background Single-port video-assisted thoracic surgery (SPVATS) emerged several years ago as a new, minimally invasive surgery for diseases in the field of respiratory surgery, and is increasingly becoming a subject of interest for some thoracic surgeons in Europe and Asia. However, the adoption rate of this procedure in the United States and Japan remains low. We herein reviewed our experience of SPVATS for early lung cancer in our center, and evaluated the safety and minimal invasiveness of this technique. Methods We retrospectively analyzed patients who had undergone SPVATS for pathological stage I lung cancer in Nippon Medical School Chiba Hokusoh Hospital between September 2012 and October 2015. In SPVATS, an approximately 4-cm incision was made at the 4th or 5th intercostal space between the anterior and posterior axillary lines. A rib spreader was not used at the incision site, and surgical manipulation was performed very carefully in order to avoid contact between surgical instruments and the intercostal nerves. The same surgeon performed surgery on all patients, and analyzed laboratory data before and after surgery. Results Eighty-four patients underwent anatomical lung resection for postoperative pathological stage I lung cancer. The mean wound length was 4.2 cm. Eighty-four patients underwent lobectomy and segmentectomy, respectively. The mean preoperative forced expiratory volume in 1 second (FEV1%) was 1.85%±0.36%. Our patients consisted of 49 men (58.3%) and 35 women (41.7%), with 64, 18, 1, and 1 having adenocarcinoma, squamous cell carcinoma, adenosquamous carcinoma, and small-cell lung cancer, respectively. The mean operative time was 175±21 min, operative blood loss 92±18 mL, and duration of drain placement 1.9±0.6 days. The duration of the postoperative hospital stay was 7.1±1.7 days, numeric rating scale (NRS) 1 week after surgery 2.8±0.6, and occurrence rate of allodynia 1 month after surgery 10.7%. No patient developed serious

  15. Automated video screening for unattended background monitoring in dynamic environments.

    Energy Technology Data Exchange (ETDEWEB)

    Carlson, Jeffrey J.

    2004-03-01

    This report addresses the development of automated video-screening technology to assist security forces in protecting our homeland against terrorist threats. A threat of specific interest to this project is the covert placement and subsequent remote detonation of bombs (e.g., briefcase bombs) inside crowded public facilities. Different from existing video motion detection systems, the video-screening technology described in this report is capable of detecting changes in the static background of an otherwise, dynamic environment - environments where motion and human activities are persistent. Our goal was to quickly detect changes in the background - even under conditions when the background is visible to the camera less than 5% of the time. Instead of subtracting the background to detect movement or changes in a scene, we subtracted the dynamic scene variations to produce an estimate of the static background. Subsequent comparisons of static background estimates are used to detect changes in the background. Detected changes can be used to alert security forces of the presence and location of potential threats. The results of this research are summarized in two MS Power-point presentations included with this report.

  16. Overview of uniportal video-assisted thoracic surgery (VATS): past and present

    Science.gov (United States)

    Reinersman, J. Matthew; Passera, Eliseo

    2016-01-01

    Single incision video-assisted thoracic surgery (VATS), better known as uniportal VATS, has taken the world of thoracic surgery by storm over the previous few years. Through advances in techniques and technology, surgeons have been able to perform increasingly complex thoracic procedures utilizing a single small incision, hence avoiding the inherent morbidity of the standard open thoracotomy. This was a natural extension of what most recognize as the standard of care for early stage lung cancer, the VATS lobectomy, generally performed through a three- or four-incision technique. Improved camera optics have allowed the use of smaller cameras, making the uniportal approach technically easier. Improvement in articulating staplers and the development of other roticulator instruments have also aided working through a small single access point. The uniportal technique further brings the operative fulcrum inside the chest cavity, enabling better visualization, and creates working conditions similar to the open thoracotomy. Currently, uniportal VATS is being used for minor thoracic procedures and lung resections up to complex thoracic procedures typically requiring open approaches, such as chest wall resections, pneumonectomy, and bronchoplastic and pulmonary artery sleeve resections. Uniportal VATS is a clear advance in the field of general thoracic surgery and provides but a glimpse into the untold future. PMID:27134837

  17. Instructional physical activity monitor video in english and spanish

    Science.gov (United States)

    The ActiGraph activity monitor is a widely used method for assessing physical activity. Compliance with study procedures in critical. A common procedure is for the research team to meet with participants and demonstrate how and when to attach and remove the monitor and convey how many wear-days are ...

  18. Uniportal video-assisted thoracic surgery left superior segmentectomy with systematic lymphadenectomy in the semiprone position.

    Science.gov (United States)

    Lin, Zongwu; Xi, Junjie; Xu, Songtao; Wang, Qun

    2016-08-01

    A 63-year-old male was referred to our hospital with two existing lesions in bilateral lungs. Computed tomography (CT) showed a 15-mm ground-glass opacity (GGO) in the superior segment of left lower lung (S6) and a 5-mm GGO in the center of the right upper lobe. The preoperative clinical diagnosis was stage I primary lung cancer for the left lesion while the right lesion needed follow-up. Uniportal video-assisted thoracic surgery (VATS) left superior segmentectomy in the semiprone position was performed in this case and the right upper lobe was kept untouched. Frozen section examination confirmed the diagnosis of lung adenocarcinoma, and systematic lymphadenectomy with non-grasping en bloc dissection technique was then performed. A chest tube was placed at the posterior part of the incision through the dorsal thoracic cavity to the apex. The postoperative pathologic diagnosis was minimally invasive adenocarcinoma, staged T1aN0M0.

  19. Clinical pathway for video-assisted thoracic surgery: the Hong Kong story

    Science.gov (United States)

    2016-01-01

    A clinical pathway provides a scheduled, objective protocol for the multi-disciplinary, evidence-based management of patients with a specific condition or undergoing a specific procedure. In implementing a clinical pathway for the care of patients receiving video-assisted thoracic surgery (VATS) in Hong Kong, many insights were gained into what makes a clinical pathway work: meticulous preparation and team-building are keys to success; the pathway must be constantly reviewed and revisions made in response to evolving clinical need; and data collection is a key element to allow auditing and clinical research. If these can be achieved, a clinical pathway delivers not only measurable improvements in patient outcomes, but also fundamentally complements clinical advances such as VATS. This article narrates the story of how the clinical pathway for VATS in Hong Kong was created and evolved, highlighting how the above lessons were learned. PMID:26941965

  20. Pulmonary actinomycosis: a case undergoing resection through video-assisted thoracic surgery (VATS)

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Actinomycosis is an uncommon disease, which is usually manifested as cervicofacial infection and related to poor oral hygiene or compromised immune function. Pulmonary actinomycosis is rare, but its diagnosis is changing due to its variable presentation and the similarity in appearance to other intrapulmonary diseases. Here we report an 80-year-old man with a solitary pulmonary nodule over the left upper lobe. Pulmonary neoplasm was highly suspected in this patient and thus resection of the mass was undertaken through video-assisted thoracic surgery (VATS). Histopathological examination demonstrated this patient had an Actinomyeces infection. While the application of VATS in patients with pulmonary actinomycosis has rarely been reported in literature, we conclude that VATS is valuable for the diagnosis and treatment of patients with undetermined pulmonary nodule(s).

  1. Important Non-Technical Skills in Video-Assisted Thoracoscopic Surgery Lobectomy: Team Perspectives.

    Science.gov (United States)

    Gjeraa, Kirsten; Mundt, Anna S; Spanager, Lene; Hansen, Henrik J; Konge, Lars; Petersen, René H; Østergaard, Doris

    2017-07-01

    Safety in the operating room is dependent on the team's non-technical skills. The importance of non-technical skills appears to be different for minimally invasive surgery as compared with open surgery. The aim of this study was to identify which non-technical skills are perceived by team members to be most important for patient safety, in the setting of video-assisted thoracoscopic surgery (VATS) lobectomy. This was an explorative, semistructured interview-based study with 21 participants from all four thoracic surgery centers in Denmark that perform VATS lobectomy. Data analysis was deductive, and directed content analysis was used to code the text into the Oxford Non-Technical Skills system for evaluating operating teams' non-technical skills. The most important non-technical skills described by the VATS teams were planning and preparation, situation awareness, problem solving, leadership, risk assessment, and teamwork. These non-technical skills enabled the team to achieve shared mental models, which in turn facilitated their efforts to anticipate next steps. This was viewed as important by the participants as they saw VATS lobectomy as a high-risk procedure with complementary and overlapping scopes of practice between surgical and anesthesia subteams. This study identified six non-technical skills that serve as the foundation for shared mental models of the patient, the current situation, and team resources. These findings contribute three important additions to the shared mental model construct: planning and preparation, risk assessment, and leadership. Shared mental models are crucial for patient safety because they enable VATS teams to anticipate problems through adaptive patterns of both implicit and explicit coordination. Copyright © 2017 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.

  2. Evaluation of a robot-assisted video-assisted thoracoscopic surgery programme

    Science.gov (United States)

    HE, YONG; COONAR, AMANS; GELVEZ-ZAPATA, SABIN; SASTRY, POST; PAGE, ARCHER

    2014-01-01

    At present, there is increasing interest in surgical procedures using a robot-assisted device. The aim of this study was to investigate whether robot-assisted video-assisted thoracoscopic surgery (VATS) was more effective than conventional VATS. A total of 64 VATS lobectomies in Papworth Hospital (Cambridge, UK) were included in the study. In 34 cases the lobectomies were performed using conventional VATS (CV group), while in the remaining 30 cases the lobectomies were performed using robot-assisted VATS (Robotic group). In the robot-assisted VATS, FreeHand®, a thoracoscopic camera controller produced by Freehand 2010 Ltd. (Eastleigh, UK), was used. The duration of the thoracoscopic surgery in the Robotic group was 145.50±10.43 min, whereas in the CV group the duration was 162.79±9.40 min. The surgery duration in the Robotic group was 10.62% shorter than that in the CV group (P<0.05). The rates of bleeding, pulmonary infection, arrhythmia and prolonged air leak (≥5 days) in the Robotic group were 0, 3.33, 26.67 and 13.33%, respectively, while the corresponding rates in the CV group were 2.94, 5.88, 20.59 and 17.65%, respectively. No significant differences were identified in the postoperative complication rates between the two groups (P≥0.05). There was no perioperative mortality in the study. Compared with conventional VATS, FreeHand-assisted VATS provides a similar rate of postoperative complications and a reduced surgery duration, and may be beneficial for the recovery of the patients following VATS. PMID:24669243

  3. Intraoperative esophageal Doppler hemodynamic monitoring in free perforator flap surgery.

    Science.gov (United States)

    Figus, Andrea; Wade, Ryckie G; Oakey, Stephen; Ramakrishnan, Venkat V

    2013-03-01

    Goal-directed fluid therapy optimizes cardiac output and flap perfusion during anesthesia. Intraoperative esophageal Doppler (ED) monitoring has been reported as more accurate and reliable, demonstrating improved surgical outcomes compared with central venous pressure and arterial catheter monitoring. A prospective study of patients undergoing free perforator (deep inferior epigastric artery perforator/anterolateral thigh) flap surgery with intraoperative ED monitoring (51 patients) or central venous pressure monitoring (53 patients) was undertaken. Fluid input included crystalloids, colloids, or blood products. Fluid output included urine, blood, or suctioned fluid. Postoperative fluid balance was calculated as fluid input - output. Fluid input between groups was not different. Fluid output was greater in the ED group (P = 0.008). The ED group showed less fluid balance (P = 0.023), less anesthetic time (P = 0.001), less hospital stay (mean 1.9 days; P = 0.147), less monitoring and flap complications (P = 0.062). ED monitoring demonstrated no monitoring complications, provides a favorable postoperative fluid balance, and may reduce flap complications and hospital stay.

  4. Video see-through augmented reality for oral and maxillofacial surgery.

    Science.gov (United States)

    Wang, Junchen; Suenaga, Hideyuki; Yang, Liangjing; Kobayashi, Etsuko; Sakuma, Ichiro

    2017-06-01

    Oral and maxillofacial surgery has not been benefitting from image guidance techniques owing to the limitations in image registration. A real-time markerless image registration method is proposed by integrating a shape matching method into a 2D tracking framework. The image registration is performed by matching the patient's teeth model with intraoperative video to obtain its pose. The resulting pose is used to overlay relevant models from the same CT space on the camera video for augmented reality. The proposed system was evaluated on mandible/maxilla phantoms, a volunteer and clinical data. Experimental results show that the target overlay error is about 1 mm, and the frame rate of registration update yields 3-5 frames per second with a 4 K camera. The significance of this work lies in its simplicity in clinical setting and the seamless integration into the current medical procedure with satisfactory response time and overlay accuracy. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

  5. COMPLICACIONES DE LA CIRUGÍA CARDÍACA VIDEO-ASISTIDA / Complications of video-assisted heart surgery

    OpenAIRE

    Fausto L. Rodríguez Salgueiro; Raúl García Rojas; Elizabeth Rodríguez Rosales; Dania Valera Pérez; Antonio de Arazoza Hernández

    2012-01-01

    ResumenLa cirugía cardiovascular video-asistida incluye procedimientos extremadamente complejos, como la revascularización miocárdica y las sustituciones valvulares, no exentos de complicaciones fácilmente prevenibles y tratables. En este artículo se discuten las complicaciones de la cirugía cardíaca video-asistida, propias de la posición del paciente: respiratorias, cardiovasculares, quirúrgicas, infecciosas, entre otras. La cirugía cardíaca video-asistida brinda al paciente innumerables ven...

  6. The Use of Multiple Monitor and KVM (Keyboard, Video, and Mouse) Technologies in an Educational Setting

    Science.gov (United States)

    Snyder, Robin

    2004-01-01

    Having more than one screen of usable space can enhance productivity, both inside and outside of the classroom. So can using one keyboard, screen, and mouse with multiple computers. This paper (and session) will cover the author's use of multiple monitor and KVM (keyboard, video, and mouse) technologies both inside and outside the classroom, with…

  7. A Video Processing and Data Retrieval Framework for Fish Population Monitoring

    NARCIS (Netherlands)

    Beauxis-Aussalet, E.M.A.L.; Palazzo, S.; Nadarajan, G.; Arslanova, E.; Spampinato, C.; Hardman, L.

    2013-01-01

    In this work we present a framework for fish population monitoring through the analysis of underwater videos. We specifically focus on the user information needs, and on the dynamic data extraction and retrieval mechanisms that support them. Sophisticated though a software tool may be, it is ultimat

  8. A Video Processing and Data Retrieval Framework for Fish Population Monitoring

    NARCIS (Netherlands)

    E.M.A.L. Beauxis-Aussalet (Emmanuelle); S. Palazzo; G. Nadarajan; E. Arslanova (Elvira); C. Spampinato (Concetto); L. Hardman (Lynda)

    2013-01-01

    htmlabstractIn this work we present a framework for fish population monitoring through the analysis of underwater videos. We specifically focus on the user information needs, and on the dynamic data extraction and retrieval mechanisms that support them. Sophisticated though a software tool may be, i

  9. Video-based respiration monitoring with automatic region of interest detection.

    Science.gov (United States)

    Janssen, Rik; Wang, Wenjin; Moço, Andreia; de Haan, Gerard

    2016-01-01

    Vital signs monitoring is ubiquitous in clinical environments and emerging in home-based healthcare applications. Still, since current monitoring methods require uncomfortable sensors, respiration rate remains the least measured vital sign. In this paper, we propose a video-based respiration monitoring method that automatically detects a respiratory region of interest (RoI) and signal using a camera. Based on the observation that respiration induced chest/abdomen motion is an independent motion system in a video, our basic idea is to exploit the intrinsic properties of respiration to find the respiratory RoI and extract the respiratory signal via motion factorization. We created a benchmark dataset containing 148 video sequences obtained on adults under challenging conditions and also neonates in the neonatal intensive care unit (NICU). The measurements obtained by the proposed video respiration monitoring (VRM) method are not significantly different from the reference methods (guided breathing or contact-based ECG; p-value  =  0.6), and explain more than 99% of the variance of the reference values with low limits of agreement (-2.67 to 2.81 bpm). VRM seems to provide a valid solution to ECG in confined motion scenarios, though precision may be reduced for neonates. More studies are needed to validate VRM under challenging recording conditions, including upper-body motion types.

  10. No extensive experience in open procedures is needed to learn lobectomy by video-assisted thoracic surgery

    DEFF Research Database (Denmark)

    Konge, Lars; Petersen, René Horsleben; Hansen, Henrik Jessen;

    2012-01-01

    Lobectomies done by video-assisted thoracic surgery (VATS) result in fewer complications and less pain and save total costs compared with the traditional approach. However, the majority of procedures are still performed via open thoracotomies, because VATS lobectomy is considered difficult to learn......, requiring experience in open surgery, and causing complications in the initial phase of the learning curve. The aim of this study was to describe a training model appreciating patient safety during training and to explore the initial learning curve for a trainee rather inexperienced in open surgery....

  11. Invasive hemodynamic monitoring in the postoperative period of cardiac surgery

    Directory of Open Access Journals (Sweden)

    Desanka Dragosavac

    1999-08-01

    Full Text Available OBJETIVE: To assess the hemodynamic profile of cardiac surgery patients with circulatory instability in the early postoperative period (POP. METHODS: Over a two-year period, 306 patients underwent cardiac surgery. Thirty had hemodynamic instability in the early POP and were monitored with the Swan-Ganz catheter. The following parameters were evaluated: cardiac index (CI, systemic and pulmonary vascular resistance, pulmonary shunt, central venous pressure (CVP, pulmonary capillary wedge pressure (PCWP, oxygen delivery and consumption, use of vasoactive drugs and of circulatory support. RESULTS: Twenty patients had low cardiac index (CI, and 10 had normal or high CI. Systemic vascular resistance was decreased in 11 patients. There was no correlation between oxygen delivery (DO2 and consumption (VO2, p=0.42, and no correlation between CVP and PCWP, p=0.065. Pulmonary vascular resistance was decreased in 15 patients and the pulmonary shunt was increased in 19. Two patients with CI < 2L/min/m² received circulatory support. CONCLUSION: Patients in the POP of cardiac surgery frequently have a mixed shock due to the systemic inflammatory response syndrome (SIRS. Therefore, invasive hemodynamic monitoring is useful in handling blood volume, choice of vasoactive drugs, and indication for circulatory support.

  12. Framework for video-based monitoring of forest insect defoliation and discoloration

    Science.gov (United States)

    Zhao, Feifei; Wang, Yafei; Qiao, Yanyou

    2015-01-01

    Pest damage is a general problem that disturbs the growth of forests, influencing carbon sequestration and causing economic losses. In the past decades, many studies have been conducted to monitor and detect forest insect damage using satellite remote sensing technology. Satellite remote sensing has a satellite or aerial vision allowing the monitoring of extensive forest areas, but it usually requires constant time periods and is prone to cloud interference. To enable more efficient and effective monitoring of forest pest damage, a video-based monitoring framework is presented. This framework comprises three key parts: (1) video positioning of forest insect damage based on digital elevation model (DEM) and the parameters obtained from the pan-tilt-zoom camera, (2) integration of two-dimensional/three-dimensional geographic information system and video surveillance to provide more intuitionistic monitoring and assistance for positioning, (3) on-site verification conducted by ground surveys and guided through global positioning system (GPS) integrated in the embedded devices. The experiment was carried out over two forest areas to validate the proposed method. Results showed that the framework bears a sound positioning accuracy and high detection ratio, which could be effectively used in detecting and monitoring forest insect defoliation and discoloration.

  13. Video-assisted thoracic surgery for superior posterior mediastinal neurogenic tumour in the supine position

    Directory of Open Access Journals (Sweden)

    Darlong Laleng

    2009-01-01

    Full Text Available Video-assisted thoracic surgery (VATS for a superior posterior mediastinal lesion is routinely done in the lateral decubitus position similar to a standard thoracotomy using a double-lumen endotracheal tube for one-lung ventilation. This is an area above the level of the pericardium, with the superior thoracic opening as its superior limit and its inferior limit at the plane from the sternal angle to the level of intervertebral disc of thoracic 4 to 5 vertebra lying behind the great vessels. The lateral decubitus position has disadvantages of the double-lumen endotracheal tube getting malpositioned during repositioning from supine position to the lateral decubitus position, shoulder injuries due to the prolonged abnormal fixed posture and rarer injuries of the lower limb. There is no literature related to VATS in the supine position for treating lesions in the posterior mediastinum because the lung tissue falls in the dependent posterior mediastinum and obscures the field of surgery; however, VATS in the supine position is routinely done for lesions in the anterior mediastinum and single-stage bilateral spontaneous pneumothorax. Thus, in the selected cases, ′VATS in supine position′ allows an invasive procedure to be completed in the most stable anatomical posture.

  14. Single-stage bilateral pulmonary resections by video-assisted thoracic surgery for multiple small nodules

    Science.gov (United States)

    Yao, Feng; Yang, Haitang

    2016-01-01

    Background Surgical treatment is thought to be the most effective strategy for multiple small nodules. However, in general, one-stage bilateral resection is not recommended due to its highly invasive nature. Methods Clinical records of patients undergoing one-stage bilateral resections of multiple pulmonary nodules between January 2009 and September 2014 in a single institution were retrospectively reviewed. Results Simultaneous bilateral pulmonary resection by conventional video-assisted thoracic surgery (VATS) was undertaken in 29 patients. Ground glass opacity (GGO) accounted for 71.9% (46/64) of total lesions, including 26 pure GGO and 20 mixed GGO lesions. One case underwent bilateral lobectomy that was complicated by postoperative dyspnea. Lobar-sublobar (L/SL) resection and bilateral sublobar resection (SL-SL) were conducted in 16 and 12 cases, respectively, and most of these cases had uneventful postoperative courses. There was no significant difference with regard to postoperative complications (P=0.703), duration of use of chest drains (P=0.485), between one- and two-stage groups. Mean postoperative follow-up in cases of primary lung cancer was 31.4 (range, 10–51) months. There was neither recurrence nor deaths at final follow-up. Conclusions Single-stage bilateral surgery in selected cases with synchronous bilateral multiple nodules (SBMNs) is feasible and associated with satisfactory outcomes. PMID:27076942

  15. Video-assisted breast surgery: reconstruction after resection of more than 33% of the breast.

    Science.gov (United States)

    Yamashita, Koji; Shimizu, Kazuo

    2006-12-01

    Improvements in reconstructive mammoplasty methods have made it possible to resect more of the mammary gland while achieving good esthetic results in breast-conserving surgery. We report the esthetic results of extended wide resection of the breast with reconstruction procedures. Breast-conserving surgery was performed using a video-assisted breast surgery (VABS) technique. Breast reconstruction was simultaneously performed using the following three methods: mobilization of the remnant mammary gland, transplantation of the lateral tissue flap, and filling with an absorbent synthetic fiber mesh or cotton. The cosmetic results were evaluated with an original five-item-by-four-step scoring system: ABNSW-assessing asymmetry, breast shape, nipple shape, skin condition, and wound scar. From December 2001 through March 2006, we performed endoscopic VABS in 130 patients with breast diseases. The candidates were 29 patients with breast cancer who required resection of more than 33% of the mammary gland because of ductal carcinoma in situ (1 patient), multiple cancers (6 patients), widely extended lesions (20 patients), and lesions after preoperative systemic therapy (2 patients). Twenty-one patients underwent resection of 33% to 50% of the breast, and 8 underwent resection of more than 50% of the breast. All surgical margins were negative on examination of permanent histological preparations. The original shape of the breast was preserved. There was no local recurrence after follow-up times of 33 months (maximum) and 19 months (average). The newly devised reconstruction methods with VABS can markedly increase the mammary gland resection volume while achieving a good esthetic outcome, ensuring a precise disease-free surgical margin, and expanding the indications for breast-conserving therapy.

  16. Video-assisted thoracoscopic surgery for esophageal cancer attenuates postoperative systemic responses and pulmonary complications.

    Science.gov (United States)

    Tsujimoto, Hironori; Takahata, Risa; Nomura, Shinsuke; Yaguchi, Yoshihisa; Kumano, Isao; Matsumoto, Yusuke; Yoshida, Kazumichi; Horiguchi, Hiroyuki; Hiraki, Shuichi; Ono, Satoshi; Yamamoto, Junji; Hase, Kazuo

    2012-05-01

    Less invasive operations such as laparoscopic surgery have been developed for treating gastrointestinal malignancies. However, the advantages of video-assisted thoracoscopic surgery for esophageal cancer (VATS-e) with regard to postoperative morbidity and mortality remains controversial. We investigated the postoperative clinical course of patients who underwent esophagectomy for esophageal cancer in terms of systemic inflammatory response syndrome (SIRS) induced by VATS-e (VATS-e group) or conventional open surgery (OS group) combined with laparoscopic gastric tube reconstruction. Compared with the OS group (n = 27), the VATS-e group (n = 22) had a greater thoracic operation time (VATS-e versus OS, 181 ± 56 vs 143 ± 45 minutes, respectively), and lesser duration of stay in the intensive care unit (17 ± 2 vs 32 ± 21 hours, respectively). The VATS-e group also had a lesser SIRS duration (1.5 vs 4.3 days), a lesser incidence of SIRS, a lesser number of positive SIRS criteria, and lesser serum interleukin-6 levels immediately after operation and on postoperative day (POD) 1. The heart rate in the VATS-e group was less than that in the OS group on POD 3. The respiratory rate in the VATS-e group was significantly less than that in the OS group on PODs 3, 5, and 7. Although no difference was observed in the frequencies of postoperative complications between the 2 groups, the VATS-e group had less postoperative pneumonia. VATS-e attenuates postoperative SIRS, and is therefore a potentially less invasive operative procedure. Copyright © 2012 Mosby, Inc. All rights reserved.

  17. Lung surgery

    Science.gov (United States)

    ... Pneumonectomy; Lobectomy; Lung biopsy; Thoracoscopy; Video-assisted thoracoscopic surgery; VATS ... You will have general anesthesia before surgery. You will be asleep and unable to feel pain. Two common ways to do surgery on your lungs are thoracotomy and video- ...

  18. Ambulatory video-EEG-EMG monitoring and analysis during cataplexy in narcolepsy

    Directory of Open Access Journals (Sweden)

    Bei HUANG

    2017-09-01

    Full Text Available Objective To comprehensively analyze the clinical and electroneurophysiological characteristics during the process of cataplexy by dynamic video?EEG?EMG monitoring. Methods Six narcolepsy type 1 patients with typical cataplexy were enrolled and 2 of them were diagnosed as status cataplecticus. All patients underwent polysomnography (PSG and daytime Multiple Sleep Latency Test (MSLT to clarify the diagnosis. Cataplexy was triggered by emotional stimulus and recorded under dynamic video-EEG-EMG monitoring. EEG characteristics during cataplexy were further compared and analyzed. Objective To comprehensively analyze the clinical and electroneurophysiological characteristics during the process of cataplexy by dynamic video-EEG-EMG monitoring. Methods Six narcolepsy type 1 patients with typical cataplexy were enrolled and 2 of them were diagnosed as status cataplecticus. All patients underwent polysomnography (PSG and daytime Multiple Sleep Latency Test (MSLT to clarify the diagnosis. Cataplexy was triggered by emotional stimulus and recorded under dynamic video-EEG-EMG monitoring. EEG characteristics during cataplexy were further compared and analyzed. Results Fourteen cataplectic attacks in 6 patients were recorded. According to the clinical and video- EMG characteristics, cataplectic attack was divided into 4 stages, including triggering phase (CA1, resisting phase (CA2, atonic phase (CA3 and recovering phase (CA4. EEG frequency and amplitude varied from one stage to another and hypersynchronous paroxysmal theta (HSPT was observed in early resisting phase (CA2, which was supposed to be a distinctive EEG characteristic during the onset of cataplexy. Conclusions Generalized cataplectic ttack contain 4 stages, which indicate a complicated and dynamic process in clinical and electroneurophysiology. Moreover, it's highly possible that HSPT during resisting phase (CA2 is critical in the mechanism of cataplexy. DOI: 10.3969/j.issn.1672-6731.2017.09.006

  19. Telehomecare telecommunication framework - from remote patient monitoring to video visits and robot telepresence.

    Science.gov (United States)

    Lepage, Pierre; Letourneau, Dominic; Hamel, Mathieu; Briere, Simon; Corriveau, Helene; Tousignant, Michel; Michaud, Francois

    2016-08-01

    Over the last few years, the number of remote patient monitoring (RPM) products and of videoconferencing systems has exploded. There is also a significant number of research initiatives addressing the use of service robots for assistance in daily living activities. From a technological standpoint, providing telehomecare services is certainly feasible. However, one technological barrier is to have access to a telecommunication platform that can be adapted to address the broad range of specifications and requirements of clinical and telehealth applications. Handling the full spectrum of possibilities requires a telecommunication framework that can transmit vital sign data from patients to clinicians, bidirectional audio-video from a standard computing device, and also multiple video streams and bidirectional transmission of control data. This paper presents a framework that integrates such capabilities. It also illustrates the versatility of the framework by presenting custom-designed devices allowing integration of capabilities ranging from RPM to video visits and robot telepresence.

  20. Training and outcome monitoring in robotic urologic surgery.

    Science.gov (United States)

    Liberman, Daniel; Trinh, Quoc-Dien; Jeldres, Claudio; Valiquette, Luc; Zorn, Kevin C

    2011-11-08

    The use of robot-assisted laparoscopic technology is rapidly expanding, with applicability in numerous disciplines of surgery. Training to perform robot-assisted laparoscopic urological procedures requires a motivated learner, a motivated teacher or proctor, a curriculum with stepwise learning objectives, and regular access to a training robot. In light of the many constraints that limit surgical training, animal models should be utilized to quantifiably improve the surgical skills of residents and surgical fellows, before these skills are put into practice on patients. A system based on appropriate supervision, graduated responsibility, real-time feedback, and objective measure of progress has proven to be safe and effective. Surgical team education directed towards cohesion is perhaps the most important aspect of training. At present, there are very few published guidelines for the safe introduction of robotic urologic surgery at an institution. Increasing evidence demonstrates the effects of learning curve and surgical volume on oncological and functional outcomes in robotic surgery (RS). This necessitates the introduction of mechanisms and guidelines by which trainee surgeons can attain a sufficient level of skill, without compromising the safety of patients. Guidelines for outcome monitoring following RS should be developed, to ensure patient safety and sufficient baseline surgeon skill.

  1. Intra—Operative Facial Nerve Monitoring in Acoustic Neurinoma Surgery

    Institute of Scientific and Technical Information of China (English)

    YANGZhengming; ZHANGZhifeng; 等

    2002-01-01

    Objective To determine the method and significance of facial nerve preservation during acoustic neurinoma surgery by intra-operative facial nerve monitoring(IFNM).Methods 62 patients were randomly assigned to the IFNM or the control group.Facial nerve function(FNF)was assessed by a modified House-Brackmann grading(HB)before the operation,10 days and every two months after surgery and com,pared between the two groups. Results Ten days after surgery,26/32 patients in the IFNM group and 15/30 patients in the control group had FNF HB grade,Ⅰ-Ⅲ;FNF HB gradeⅣ-Ⅴ was prestent in 6/32 in the IFNM group and 15/30 in the control group.During follow-up,29/32 patients in the IFNM group and 20/20 patients in the control group had FNF HB gradeⅠ-Ⅲ;FNF HB gradeⅣ-Ⅴ was present in 3/32 in the IFNM group and 10/30 in the control group.All differnces were statistcally significant.Conclusion IFNM significantly improved anatomic and functional facial nerve preservation as well as the quality of life.

  2. Towards intelligent video understanding applied to plasma facing component monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Martin, V.; Bremond, F. [INRIA, Pulsa team-project, Sophia Antipolis (France); Travere, J.M. [CEA IRFM, Saint Paul-lez-Durance (France); Moncada, V.; Dunand, G. [Sophia Conseil Company, Sophia Antipolis (France)

    2011-07-01

    Infrared thermography has become a routine diagnostic in many magnetic fusion devices to monitor the heat loads on the plasma facing components (PFCs) for both physics studies and machine protection. The good results of the developed systems obtained so far motivate the use of imaging diagnostics for control, especially during long pulse tokamak operation (e.g. lasting several minutes). In this paper, we promote intelligent monitoring for both real-time purposes (machine protection issues) and post event analysis purposes (PWI understanding). We propose a vision-based system able to automatically detect and classify into different pre-defined categories phenomena as localized hot spots, transient thermal events (e.g. electrical arcing), and unidentified flying objects (UFOs) as dusts from infrared imaging data of PFCs. This original vision system is made intelligent by endowing it with high-level reasoning (i.e. integration of a priori knowledge of thermal event spatial and temporal properties to guide the recognition), self-adaptability to varying conditions (e.g. different plasma scenarios), and learning capabilities (e.g. statistical modelling of thermal event behaviour based on training samples). This approach has been already successfully applied to the recognition of one critical thermal event at Tore Supra. We present here latest results of its extension for the recognition of others thermal events (e.g., B{sub 4}C flakes, impact of fast particles, UFOs) and show how extracted information can be used during plasma operation at Tore Supra to improve the real time control system, and for further analysis of PFC aging. This document is composed of an abstract followed by the slides of the presentation. (authors)

  3. Video-assisted thoracoscopic surgery or transsternal thymectomy in the treatment of myasthenia gravis?

    Science.gov (United States)

    Zahid, Imran; Sharif, Sumera; Routledge, Tom; Scarci, Marco

    2011-01-01

    A best evidence topic in thoracic surgery was written according to a structured protocol. The question addressed was how video-assisted thoracoscopic surgery (VATS) compares to median sternotomy in the surgical management of patients with myasthenia gravis (MG)? Overall 74 papers were found using the reported search, of which 15 represented the best evidence to answer the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relevant outcomes and results are tabulated. We conclude that VATS produces equivalent postoperative mortality and complete stable remission (CSR) rates, with superior results in terms of hospital stay, operative blood loss and patient satisfaction at the expense of a doubling of operative time. Six studies comparing VATS and transsternal sternotomy in non-thymomatous myasthenia gravis (NTMG) patients found VATS to have lower operative blood loss (73.8±70.7 vs. 155.3±91.7 ml; P0.05). One study comparing video-assisted thoracoscopic extended thymectomy to transsternal thymectomy in only thymoma-associated myasthenia gravis (T-MG) patients found equivalent CSR (11.3 vs. 8.7%, P=0.1090) at six-year follow-up. Thymoma recurrence rate (9.64%) was not significantly different (P=0.1523) between the two groups. Eight studies comparing VATS and transsternal approach in mixed T-MG and NTMG patients found a lower hospital stay (1.9±2.6 vs. 4.6±4.2 days, P<0.001), reduced need for postoperative medication (76.5 vs. 35.7%, P=0.022), lower intensive care unit stay (1.5 vs. 3.2 days, P=0.018), greater symptom improvement (100 vs. 77.9%, P=0.019) and better cosmetic satisfaction (100 vs. 83, P=0.042) with VATS. In concordance with NTMG and T-MG alone patient groups, VATS and transsternal methods had equivalent complication rates (23 vs. 19%, P=0.765) with no mortalities in either group. Even though VATS has a longer operative time (268±51 vs. 177±92 min, P<0.05), its improved cosmesis, reduced need

  4. Quantification of reef benthos communities and variability inherent to the monitoring using video transect method.

    Science.gov (United States)

    Ramos, Carla Alecrim Colaço; Amaral, Fernanda Duarte; de Kikuchi, Ruy Kenji Papa; Chaves, Eduardo Marocci; de Melo, Gabriel Rivas

    2010-03-01

    Long-term monitoring program of organisms is the most recommended for understanding changing processes on reefs. The video transect method presents advantages for that. Specialists state that it is important to make sure that the recorded coverage is always the same between campaigns, so that differences in results may be entirely attributed to environmental changes. This study aimed to test the capability of implementing this requirement through tracking simulation and its validity for monitoring the benthic communities of reefs using the video transect method. Ten transects 20 m long were established in Todos os Santos Bay coral reefs. Subsequent to the first transect capture, a second diver repeated the same track, simulating two different monitoring campaigns. Data were transformed and a matrix of similarity was generated using Bray-Curtis' Index. ANOSIM analysis was performed to test the similarity of the ten transects and its repetitions. The result, R = 0.08 (P = 0.928), shows that reef monitoring using video transect, the way it is described in the literature, is appropriate, but it is important to consider some premises discussed in this work.

  5. [Safety study of long-term video-electroencephalogram monitoring].

    Science.gov (United States)

    Ley, M; Vivanco, R; Massot, A; Jiménez, J; Roquer, J; Rocamora, R

    2014-01-01

    The increased morbidity and mortality and poorer quality of life associated with drug-resistant epilepsy justify admitting patients to epilepsy monitoring units (EMU). These units employ methods that promote the occurrence of seizures, which involves a risk of secondary adverse events. The aim of our study is to characterise and quantify these adverse events in a Spanish EMU. A descriptive, longitudinal and retrospective study of patients admitted consecutively to our EMU. Patients admitted due to status epilepticus, clusters of seizures, or as participants in a clinical trial were excluded. We included 175 patients, of whom 92.1% (161) did not suffer any adverse events. Status epilepticus was present in 3.4% (6); 1.7% (3) had traumatic injury, 1.7% (3) had interictal or postictal psychosis, and 1.1% (2) had cardiorespiratory impairment. There were no risk factors associated with these adverse events. The most frequently-identified adverse events were status epilepticus, traumatic injury, interictal or postictal psychosis, and cardiorespiratory disorders. The frequency of these adverse events was similar to that seen in international literature. The complications detected do not contraindicate VEEGM. Copyright © 2012 Sociedad Española de Neurología. Published by Elsevier Espana. All rights reserved.

  6. Video-assisted thoracoscopic surgery for intrathoracic first rib resection in thoracic outlet syndrome

    Science.gov (United States)

    Hwang, Jinwook; Min, Byung-Ju; Jo, Won-Min

    2017-01-01

    Background First rib resection is a surgical treatment for decompressing the neurovascular structures in thoracic outlet syndrome (TOS). Historically, extrathoracic approaches have used a posterior, supraclavicular, or transaxillary incision to remove the first rib. In this report, we demonstrate video-assisted thoracoscopic surgery for intrathoracic first rib resection (VATS-IFRR). Methods Between 2009 and 2014, eight patients underwent VATS-IFRR for TOS. Surgery was performed through two 5-mm ports and one 10-mm port. Endoscopic graspers, a hook-type electrocautery probe, a long peapod intervertebral disc rongeur, and Kerrison punches were used. The types of disease, operative times, chest tube indwelling days, lengths of hospital stay after operation, perioperative complications, postoperative pain scale ratings, and postoperative symptom recurrence rates at provocation tests were reviewed. The surgical outcomes were compared to published outcomes of extrathoracic approaches and other VATS approaches. Results The eight patients (3 right ribs, 5 left ribs) exhibited neurogenic (1 patient), combined type (2 patients), arterial (4 patients), and venous type (1 patient) TOS. The mean operative time was 190 (range 155-310) minutes. No mortalities or major complications occurred. The mean chest tube indwelling duration was 6 (range 3–10) days, and the mean postoperative hospital stay was 9 (range 4–21) days. The mean immediate postoperative pain numeric rating scale (NRS) score was 2.7/10 (range 2–4). No recurrence was observed during follow-up (median 25.5 months, range 10–64 months) in any patient. Conclusions VATS-IFRR was safe and had several advantages. Thus, VATS-IFRR is a minimally invasive surgical option suitable for treating selective cases of TOS. PMID:28840002

  7. Distribution and Prevalence of Locoregional Recurrence after Video-Assisted Thoracoscopic Surgery for Primary Lung Cancer.

    Science.gov (United States)

    Haruki, Tomohiro; Miwa, Ken; Araki, Kunio; Taniguchi, Yuji; Nakamura, Hiroshige

    2016-09-01

    Background The aim of this study is to evaluate cases with locoregional recurrence after video-assisted thoracoscopic surgery (VATS) for primary lung cancer. Methods We reviewed 248 patients with primary lung cancer who underwent lobectomy or segmentectomy with mediastinal lymph node dissection by VATS between January 2005 and December 2011. Locoregional recurrence is defined as per its occurrence in (1) bronchial stump or lung parenchymal cut end, (2) ipsilateral pleura, and (3) ipsilateral hilar and mediastinal lymph nodes, and we analyzed recurrence rate and significant associated factors for locoregional recurrence by logistic regression analysis. Results There were 47 cases of postoperative recurrence, which consisted of 26 distant, 6 locoregional and distant, and 15 locoregional recurrences. The locoregional recurrence rate was 6.0%. Of the 15 locoregional recurrence cases, there were two cases of bronchial stump and lung parenchyma cut end (0.4%), five cases of ipsilateral pleura (2.0%), and eight cases of ipsilateral hilar and mediastinal lymph nodes (3.2%). Pleural and lymphovascular invasion and advanced stages were significant associated factors in univariate analysis. Multivariate analysis revealed that advanced stages were only a significant associated factor for locoregional recurrence (p recurrence rates of our surgical treatments for primary lung cancer by VATS might be acceptable, we should explore more effective modalities against pathologically proven local advanced lung cancer for preventing not only distant but also locoregional recurrences. Georg Thieme Verlag KG Stuttgart · New York.

  8. Multimodal analgesic treatment in video-assisted thoracic surgery lobectomy using an intraoperative intercostal catheter.

    Science.gov (United States)

    Wildgaard, Kim; Petersen, Rene H; Hansen, Henrik J; Møller-Sørensen, Hasse; Ringsted, Thomas K; Kehlet, Henrik

    2012-05-01

    No golden standard for analgesia in video-assisted thoracic surgery (VATS) lobectomy exists. A simple multimodal approach using an intercostal catheter (ICC) may be of benefit since acute post-operative pain following VATS lobectomy primarily originates from the chest drain area. Prospective observational cohort. Forty-eight consecutive patients received a standardized regimen consisting of paracetamol, non-steroidal anti-inflammatory drug and gabapentin. Further, surgeons performed a single-shot paravertebral block (PVB) at five levels (15 ml of 0.5% bupivacaine) and inserted an ICC at the drain site level for continuous delivery of 6 ml of 0.25% bupivacaine h(-1). Pain scores at rest, mobilization and with the extended arms were followed until discharge or for 4 days. Forty-eight patients, mean age 64 years (CI: 61-68), were included. The mean time for the PVB and ICC placement was 5 min (CI: 4.7-5.9). The mean pain score at rest using a numerical rating scale (NRS, 0-10) was 85% of patients reporting satisfactory or very satisfactory pain treatment all days. Acute pain after VATS lobectomy may be adequately controlled using a multimodal non-opioid regime including PVB and an ICC. The low pain scores and reduced time used inserting the ICC may present an alternative to continuous epidural analgesia or conventional PVB.

  9. Evaluation of video-assisted thoracoscopic surgery for pulmonary metastases: a meta-analysis.

    Directory of Open Access Journals (Sweden)

    Siyuan Dong

    Full Text Available BACKGROUND: To evaluate the evidence comparing video-assisted thoracic surgery (VATS and open thoracotomy in the treatment of metastatic lung cancer using meta-analytical techniques. METHODS: A literature search was undertaken until July 2013 to identify the comparative studies evaluating disease-free survival rates and survival rates. The pooled odds ratios (OR and the 95% confidence intervals (95% CI were calculated with the fixed or random effect models. RESULTS: Six retrospective studies were included in our meta-analysis. These studies included a total of 546 patients: 235 patients were treated with VATS, and 311 patients were treated with open thoracotomy. The VATS and the thoracotomy did not demonstrate a significant difference in the 1-,3-,5-year survival rates and the 1-year disease-free survival rate. There were significant statistical differences between the 3-year disease free survival rate (p = 0.04, which favored open thoracotomy. CONCLUSIONS: The VATS approach is a safe and feasible treatment in terms of the survival rate for metastatic lung cancer compared with the thoracotomy. The 3-year disease-free survival rate in the VATS group is inferior to that of open thoracotomy. The VATS approach could not completely replace open thoracotomy.

  10. Non-intubated video-assisted thoracic surgery: where does evidence stand?

    Science.gov (United States)

    Tacconi, Federico

    2016-01-01

    In recent years, non-intubated video-assisted thoracic surgery (NIVATS) strategies are gaining popularity worldwide. The main goal of this surgical practice is to achieve an overall improvement of patients’ management and outcome thanks to the avoidance of side-effects related to general anesthesia (GA) and one-lung ventilation. The spectrum of expected benefits is multifaceted and includes reduced postoperative morbidity, faster discharge, decreased hospital costs and a globally reduced perturbation of patients’ well-being status. We have conducted a literature search to evaluate the available evidence on this topic. Meta-analysis of collected results was also done where appropriate. Despite some fragmentation of data and potential biases, the available data suggest that NIVATS operations can reduce operative morbidity and hospital stay when compared to equipollent procedures performed under GA. Larger, well designed prospective studies are thus warranted to assess the effectiveness of NIVATS as far as to investigate comprehensively the various outcomes. Multi-institutional and multidisciplinary cooperation will be welcome to establish uniform study protocols and to help address the questions that are to be answered yet. PMID:27195134

  11. Video-assisted thoracoscopic surgery in the management of penetrating and blunt thoracic trauma

    Directory of Open Access Journals (Sweden)

    Milanchi S

    2009-01-01

    Full Text Available Background: The role of video-assisted Thoracoscopic Surgery (VATS is still being defined in the management of thoracic trauma. We report our trauma cases managed by VATS and review the role of VATS in the management of thoracic trauma. Materials and Methods: All the trauma patients who underwent VATS from 2000 to 2007 at Cedars-Sinai Medical Center were retrospectively studied. Results: Twenty-three trauma patients underwent 25 cases of VATS. The most common indication for VATS was retained haemothorax. Thoracotomy was avoided in 21 patients. VATS failed in two cases. On an average VATS was performed on trauma day seven (range 1-26 and the length of hospital stay was 20 days (range 3-58. There was no mortality. VATS was performed in an emergency (day 1-2, or in the early (day 2-7 or late (after day 7 phases of trauma. Conclusion: VATS can be performed safely for the management of thoracic traumas. VATS can be performed before or after thoracotomy and at any stage of trauma. The use of VATS in trauma has a trimodal distribution (emergent, early, late, each with different indications.

  12. Human Daily Activities Indexing in Videos from Wearable Cameras for Monitoring of Patients with Dementia Diseases

    CERN Document Server

    Karaman, Svebor; Mégret, Rémi; Dovgalecs, Vladislavs; Dartigues, Jean-François; Gaëstel, Yann

    2010-01-01

    Our research focuses on analysing human activities according to a known behaviorist scenario, in case of noisy and high dimensional collected data. The data come from the monitoring of patients with dementia diseases by wearable cameras. We define a structural model of video recordings based on a Hidden Markov Model. New spatio-temporal features, color features and localization features are proposed as observations. First results in recognition of activities are promising.

  13. Study of the Video Monitoring System Image Recognition Solutions Based on Mathematic models

    Directory of Open Access Journals (Sweden)

    Peilong Xu

    2013-01-01

    Full Text Available objective: Through establishment a set of image recognition system based on mathematic models, to develop a auto alarm solution for the video monitoring system. Methods: compare the images the video monitoring system collected according to the time sequences. Then after binaryzation and wave filtering, the images were converted into numerical values using autocorrelation function, and the alarm threshold value was confirmed by experiences. Results: Through experiments, the change ratios of the two images before and after image processing were inversely proportional to the autocorrelation function. When the function value is less than 0.8, it indicates that there is an object volumes larger than 1m3 has invaded into 15m distances, and when the function value is less than 0.6, it indicates that there is an object volumes larger than 1m3 has invaded into 30m distances. Conclusion: Through calculation of autocorrelation functions, auto alarm for the images collected by video monitoring system could be effectively realized.

  14. Brachial Arterial Pressure Monitoring during Cardiac Surgery Rarely Causes Complications.

    Science.gov (United States)

    Singh, Asha; Bahadorani, Bobby; Wakefield, Brett J; Makarova, Natalya; Kumar, Priya A; Tong, Michael Zhen-Yu; Sessler, Daniel I; Duncan, Andra E

    2017-06-01

    hemodynamic monitoring during cardiac surgery rarely causes complications.

  15. Aprotinin and hemostasis monitoring concerns during cardiac surgery.

    Science.gov (United States)

    Swartz, Michael F; Fink, Gregory W; Searles, Bruce

    2004-12-01

    Aprotinin (Trasylol) is a serine protease inhibitor, isolated from bovine lung that initially was marketed for the treatment of pancreatitis. In the mid 1980s, reports of its ability to decrease hemorrhaging after cardiopulmonary bypass surgery introduced the drug to the realm of cardiac surgery. Unfortunately, its introduction into this arena was followed by the publication of multiple studies and case reports that blamed aprotinin for poor outcomes in the form of early graft closure. More than 17 years have passed since the initial article describing the use of aprotinin during cardiopulmonary bypass, and with time there has been a significant increase in scientific knowledge and clinical experience. Interestingly, modern literature does not support the dogma that aprotinin is a procoagulant. Aprotinin increases the activated partial thromboplastin time (aPTT), as well as the kaolin- and celite-activated clotting time (ACT), regardless of heparin. Aprotinin, because of its ability to inhibit kallikrein, has been found to decrease thrombin antithrombin III complexes, fibrin-split products, fibrinopeptide 1+2, prothrombin fragments, and all markers of thrombin formation. Some authors have suggested that it may have a synergistic effect with heparin to ensure graft patency. Anticoagulation monitoring during the use of aprotinin also has been developed based on early studies. Aprotinin administration does influence the results of various ACT tests, and consequently different methods of testing anticoagulation have been developed. Researchers have demonstrated that the celite ACT is not "artificially" prolonged in the presence of heparin and aprotinin, rather the kaolin ACT is "artificially" shortened. This article will review the scientific literature with regard to aprotinin's anticoagulatory effects and review the current recommendations for hemostasis monitoring during the use of aprotinin.

  16. Development of video-assisted breast cancer surgery: Initial experience with a novel method for creating working space without prior liposuction

    OpenAIRE

    Wu, Qian-Fu; Yu, Ying-Hua; Zhu, Xiao; Cui, Ying; Mo, Qin-Guo; WEI, CHANG-YUAN; Lin, Xue-Juan; Liu, Xue-Ying; Xie, Wei-Kang; Gan, Shui; Lei, Wei

    2017-01-01

    Endoscopic techniques are promising in breast surgery. In order to create working space, liposuction is widely used in video-assisted breast surgery (VABS). However, the use of liposuction is likely associated with side effects that may partly limit the application of VABS. Therefore, a new technique of endoscopic axillary lymphadenectomy without prior liposuction was developed by our group. A total of 106 female patients underwent VABS, with special adaptation of the video-assisted surgical ...

  17. Early chest tube removal after video-assisted thoracic surgery lobectomy with serous fluid production up to 500 ml/day

    DEFF Research Database (Denmark)

    Bjerregaard, Lars S; Jensen, Katrine; Petersen, Rene Horsleben

    2014-01-01

    In fast-track pulmonary resections, we removed chest tubes after video-assisted thoracic surgery (VATS) lobectomy with serous fluid production up to 500 ml/day. Subsequently, we evaluated the frequency of recurrent pleural effusions requiring reintervention.......In fast-track pulmonary resections, we removed chest tubes after video-assisted thoracic surgery (VATS) lobectomy with serous fluid production up to 500 ml/day. Subsequently, we evaluated the frequency of recurrent pleural effusions requiring reintervention....

  18. On the development of new SPMN diurnal video systems for daylight fireball monitoring

    Science.gov (United States)

    Madiedo, J. M.; Trigo-Rodríguez, J. M.; Castro-Tirado, A. J.

    2008-09-01

    Daylight fireball video monitoring High-sensitivity video devices are commonly used for the study of the activity of meteor streams during the night. These provide useful data for the determination, for instance, of radiant, orbital and photometric parameters ([1] to [7]). With this aim, during 2006 three automated video stations supported by Universidad de Huelva were set up in Andalusia within the framework of the SPanish Meteor Network (SPMN). These are endowed with 8-9 high sensitivity wide-field video cameras that achieve a meteor limiting magnitude of about +3. These stations have increased the coverage performed by the low-scan allsky CCD systems operated by the SPMN and, besides, achieve a time accuracy of about 0.01s for determining the appearance of meteor and fireball events. Despite of these nocturnal monitoring efforts, we realised the need of setting up stations for daylight fireball detection. Such effort was also motivated by the appearance of the two recent meteorite-dropping events of Villalbeto de la Peña [8,9] and Puerto Lápice [10]. Although the Villalbeto de la Peña event was casually videotaped, and photographed, no direct pictures or videos were obtained for the Puerto Lápice event. Consequently, in order to perform a continuous recording of daylight fireball events, we setup new automated systems based on CCD video cameras. However, the development of these video stations implies several issues with respect to nocturnal systems that must be properly solved in order to get an optimal operation. The first of these video stations, also supported by University of Huelva, has been setup in Sevilla (Andalusia) during May 2007. But, of course, fireball association is unequivocal only in those cases when two or more stations recorded the fireball, and when consequently the geocentric radiant is accurately determined. With this aim, a second diurnal video station is being setup in Andalusia in the facilities of Centro Internacional de Estudios y

  19. Video-assisted thoracic surgery reduces early postoperative stress. A single-institutional prospective randomized study

    Science.gov (United States)

    Asteriou, Christos; Lazopoulos, Achilleas; Rallis, Thomas; Gogakos, Apostolos S; Paliouras, Dimitrios; Tsakiridis, Kosmas; Zissimopoulos, Athanasios; Tsavlis, Drosos; Porpodis, Konstantinos; Hohenforst-Schmidt, Wolfgang; Kioumis, Ioannis; Organtzis, John; Zarogoulidis, Konstantinos; Zarogoulidis, Paul; Barbetakis, Nikolaos

    2016-01-01

    Background Video-assisted thoracic surgery (VATS) has been shown to effectively reduce postoperative pain, enhance mobilization of the patients, shorten in-hospital length of stay, and minimize postoperative morbidity rates. The aim of this prospective study is to evaluate neuroendocrine and respiratory parameters as stress markers in cancer patients who underwent lung wedge resections, using both mini muscle-sparing thoracotomy and VATS approach. Methods The patients were randomly allocated into two groups: Group A (n=30) involved patients who were operated on using the VATS approach, while in group B (n=30), the mini muscle-sparing thoracotomy approach was used. Neuroendocrine and biological variables assessed included blood glucose levels, C-reactive protein (CRP) levels, cortisol, epinephrine, and adrenocorticotropic hormone (ACTH) levels. Arterial oxygen (PaO2) and carbon dioxide (PaCO2) partial pressure were also evaluated. All parameters were measured at the following time points: 24 hours preoperatively (T1), 4 hours (T2), 24 hours (T3), 48 hours (T4), and 72 hours (T5), after the procedure. Results PaO2 levels were significantly higher 4 and 24 hours postoperatively in group A vs group B, respectively (T2: 94.3 vs 77.9 mmHg, P=0.015, T3: 96.4 vs 88.7 mmHg, P=0.034). Blood glucose (T2: 148 vs 163 mg/dL, P=0.045, T3: 133 vs 159 mg/dL, P=0.009) and CRP values (T2: 1.6 vs 2.5 mg/dL, P=0.024, T3: 1.5 vs 2.1 mg/dL, P=0.044) were found increased in both groups 4 and 24 hours after the procedure. However, their levels were significantly lower in the VATS group of patients. ACTH and cortisol values were elevated immediately after the operation and became normal after 48 hours in both groups, without significant difference. Postoperative epinephrine levels measured in group A vs group B, respectively, (T2: 78.9 vs 115.6 ng/L, P=0.007, T3: 83.4 vs 122.5 ng/L, P=0.012, T4: 67.4 vs 102.6 ng/L, P=0.021). The levels were significantly higher in group B. Conclusion This

  20. Video-assisted thoracic surgery for pulmonary sequestration: a safe alternative procedure

    Science.gov (United States)

    Wang, Lu-Ming; Cao, Jin-Lin

    2016-01-01

    Background Pulmonary sequestration (PS), a rare congenital anatomic anomaly of the lung, is usually treated through resection by a conventional thoracotomy procedure. The efficacy and safety of video-assisted thoracic surgery (VATS) in PS treatment has seldom been evaluated. To address this research gap, we assessed the efficacy and safety of VATS in the treatment of PS in a large Chinese cohort. Methods We retrospectively reviewed 58 patients with PS who had undergone surgical resection in our department between January 2003 and April 2014. Of these patients, 42 (72.4%) underwent thoracotomy, and 16 (27.6%) underwent attempted VATS resection. Clinical and demographic data, including patients’ age, sex, complaints, sequestration characteristics, approach and procedures, operative time, resection range, blood loss, drainage volume, chest tube duration, hospital stay, and complications were collected, in addition to short-term follow-up data. Results Of the 58 participating patients, 55 accepted anatomic lobectomy, 2 accepted wedge resection, and 1 accepted left lower lobectomy combined with lingular segmentectomy. All lesions were located in the lower lobe, with 1–4 aberrant arteries, except one right upper lobe sequestration. Three cases (18.8%) in the VATS group were converted to thoracotomy because of dense adhesion (n=1), hilar fusion (n=1), or bleeding (n=1). No significant differences in operative time, postoperative hospital stay, or perioperative complications were observed between the VATS and thoracotomy groups, although the VATS patients had less blood loss (P=0.032), a greater drainage volume (P=0.001), and a longer chest tube duration (P=0.001) than their thoracotomy counterparts. Conclusions VATS is a viable alternative procedure for PS in some patients. Simple sequestration without a thoracic cavity or hilum adhesion is a good indication for VATS resection, particularly for VATS anatomic lobectomy. Thoracic cavity and hilum adhesion remain a

  1. Video-Assisted Thoracoscopic Surgery in Patients With Clinically Resectable Lung Tumors

    Directory of Open Access Journals (Sweden)

    H. Sakai

    1996-01-01

    Full Text Available To investigate the feasibility of thoracoscopic resection, a pilot study was performed in patients with clinically resectable lung tumors. In 40 patients, Video-assisted thoracic surgery (VATS was performed because of suspicion of malignancy. There were 29 men and 11 women with a median age of 54.8 years (range 18 to 78. Preoperative indications were suspected lung cancer and tumor in 27 patients, assessment of tumor resectability in 7 patients, and probability of metastatic tumors in 6 patients. The final diagnoses in the 27 patients with suspected lung cancer were 12 primary lung cancers, 6 lung metastases, and 9 benign lesions. The success rates for VATS (no conversion to thoracotomy were 1 of 12 (8.3% for resectable stage I lung cancer, 8 of 12 (66.7% for metastatic tumors, and 9 of 9 (100% for benign tumors. With VATS, 6 of 7 patients (85.7%, possible stage III non-small cell lung cancer, an explorative thoracotomy with was avoided, significantly reducing morbidity. The reasons for conversion to thoracotomy were 1 oncological (N2 lymph node dissection and prevention of tumor spillage and 2 technical (inability to locate the nodule, central localization, no anatomical fissure, or poor lung function requiring full lung ventilation. The ultimate diagnoses were 19 lung cancers, 12 metastatic lung tumors, and 9 benign lung tumors. Our data show the limitations of VATS for malignant tumors in general use. These findings, together with the fact that experience in performing thoracoscopic procedures demonstrates a learning curve, may limit the use of thoracoscopic resection as a routine surgical procedure, especially when strict oncological rules are respected.

  2. The design for embedded network infrared video monitoring system based on Linux OS

    Science.gov (United States)

    Liu, Lei; Ning, Chen; Zhou, Xiaojun; Pan, Tao

    2011-11-01

    This paper describes the way to design an embedded network infrared video monitoring system based on Linux OS. Firstly, we make a comparison of the hardware solution between some regular monitoring systems, and then design the hardware system that we needed. Our hardware system uses the i.mx27 processor with the ARM9 core. Secondly, the software platform is introduced in this paper. The Linux operate system is applied in our software solution. According to the characteristic of Linux OS, we download uboot to the demo board, transplant the Linux kernel and jffs2 file system to the embedded system, and briefly compile and download drivers. Finally, the application software design process is introduced in the paper. The system can be used to encode the picture captured from infrared CCD, and then send the picture to another same embedded system to decode the picture, and finally display it on the LCD and achieve the goal of the infrared video's remote monitoring. As the infrared CCD would not be affect by the dim light, this monitoring system could be used all day long.

  3. Network-adaptive HD MPEG-2 video streaming with cross-layered channel monitoring in WLAN

    Institute of Scientific and Technical Information of China (English)

    PARK Sanghoon; YOON Hayoung; KIM Jongwon

    2006-01-01

    In this paper, we propose a practical design and implementation of network-adaptive high definition (HD) MPEG-2video streaming combined with cross-layered channel monitoring (CLM) over the IEEE 802.1 la wireless local area network (WLAN). For wireless channel monitoring, we adopt a cross-layered approach, where an access point (AP) periodically measures lower layers such as medium access control (MAC) and physical (PHY) transmission information (e.g., MAC layer loss rate) and then sends the monitored information to the streaming server application. The adaptive streaming server with the CLM scheme reacts more quickly and efficiently to the fluctuating wireless channel than the end-to-end application-layer monitoring (E2EM)scheme. The streaming server dynamically performs priority-based frame dropping to adjust the sending rate according to the measured wireless channel condition. For this purpose, the proposed streaming system nicely provides frame-based prioritized packetization by using a real-time stream parsing module. Various evaluation results over an IEEE 802.1 la WLAN testbed are provided to verify the intended Quality of Service (QoS) adaptation capability. Experimental results showed that the proposed system can mitigate the quality degradation of video streaming due to the fluctuations of time-varying channel.

  4. Successful Treatment of Mediastinal Unicentric Castleman’s Disease Using Video-Assisted Thoracoscopic Surgery with Preoperative Embolization

    Directory of Open Access Journals (Sweden)

    Yosuke Amano

    2013-01-01

    Full Text Available Unicentric Castleman’s disease is a rare, benign lymphoproliferative disorder that is curable with surgical resection. However, significant bleeding often occurs during surgery because of tumor hypervascularity. We herein present a case of hyaline-vascular-type mediastinal unicentric Castleman’s disease, successfully resected using video-assisted thoracoscopic surgery with preoperative embolization. In the present case, tumor hypervascularity and feeding vessels were revealed by computed tomography (CT, which led us to perform preoperative angiography and embolization to the tumor feeding arteries to reduce intraoperative bleeding. Castleman’s disease should be considered in the differential diagnosis of hypervascular mediastinal tumors. Tumor vascularity should be assessed prior to surgery, and preoperative embolization should be considered.

  5. Research on Remote Video Monitoring System Used for Numerical Control Machine Tools Based on Embedded Technology

    Institute of Scientific and Technical Information of China (English)

    LIU Quan; QU Xuehong; ZHOU Henglin; LONG Yihong

    2006-01-01

    This paper designed an embedded video monitoring system using DSP(Digital Signal Processing) and ARM(Advanced RISC Machine). This system is an important part of self-service operation of numerical control machine tools. At first the analog input signals from the CCD(Charge Coupled Device) camera are transformed into digital signals, and then output to the DSP system, where the video sequence is encoded according to the new generation image compressing standard called H.264. The code will be transmitted to the ARM system through xBus, and then be packed in the ARM system and transmitted to the client port through the gateway. Web technology, embedded technology and image compressing as well as coding technology are integrated in the system, which can be widely used in self-service operation of numerical control machine tools and intelligent robot control areas.

  6. A Case Report of Intraoperative Monitoring During the Spinal Surgery by Means of Somatosensory Evoked Potentials

    Directory of Open Access Journals (Sweden)

    S.K. Shakoori

    2006-01-01

    Full Text Available Introduction : To prevent spinal lesions during surgery we can use somatosensory evoked potentials (SSEP to monitor the patients who are under surgery particularly the ones under the spinal cord surgery. Case Report: The following case refers to the monitoring of a 23 year – old youth with the use of Intraoperative SSEP who has been under the operation of tumor removal with the diagnosis of space occupying mass in the conous region of spine in Tabriz Shohada Hospital. Conclusion: SSEP study for left tibial nerve after surgery was the same as before surgery. Pathology diagnosis was epandymom. Patient gave recovery process in few days.

  7. The advantages of using photographs and video images in telephone consultations with a specialist in paediatric surgery

    Directory of Open Access Journals (Sweden)

    Ibrahim Akkoyun

    2012-01-01

    Full Text Available Background: The purpose of this study was to evaluate the advantages of a telephone consultation with a specialist in paediatric surgery after taking photographs and video images by a general practitioner for the diagnosis of some diseases. Materials and Methods: This was a prospective study of the reliability of paediatric surgery online consultation among specialists and general practitioners. Results: Of 26 general practitioners included in the study, 12 were working in the city and 14 were working in districts outside the city. A total of 41 pictures and 3 videos of 38 patients were sent and evaluated together with the medical history and clinical findings. These patients were diagnosed with umbilical granuloma (n = 6, physiological/pathological phimosis (n = 6, balanitis (n = 6, hydrocele (n = 6, umbilical hernia (n = 4, smegma cyst (n = 2, reductable inguinal hernia (n = 1, incarcerated inguinal hernia (n = 1, paraphimosis (n = 1, burried penis (n = 1, hypospadias (n = 1, epigastric hernia (n = 1, vulva synechia (n = 1, and rectal prolapse (n = 1. Twelve patients were asked to be referred urgently, but it was suggested that only two of these patients, who had paraphimosis and incarcerated inguinal hernia be referred in emergency conditions. It was decided that there was no need for the other ten patients to be referred to a specialist at night or at the weekend. All diagnoses were confirmed to be true, when all patients underwent examination in the pediatric surgery clinic in elective conditions. Conclusion: Evaluation of photographs and video images of a lesion together with medical history and clinical findings via a telephone consultation between a paediatric surgery specialist and a general practitioner provides a definitive diagnosis and prevents patients from being referred unnecessarily.

  8. Pilot Study Evaluating the Impact of Otology Surgery Videos on Otolaryngology Resident Education.

    Science.gov (United States)

    Poon, Charles; Stevens, Shawn M; Golub, Justin S; Pensak, Myles L; Samy, Ravi N

    2017-03-01

    Use of videos as educational tools is not a novel concept; however, there is a paucity of high-quality video resources available to otolaryngology trainees. We hypothesized that residents would deem surgical-videos using a multimedia-style format more valuable as preparatory tools. Aims of this study: 1) develop portfolio of otology/neurotology videos overviewing key steps, anatomy, and pearls by a senior surgeon; 2) have residents rate the effectiveness of the videos as a preoperative tool. Prospective study. A video-library of procedures at (https://www.youtube.com/user/cisurgeon) was formatted via time-stamping to coincide expert level narration with closed captioning, critical procedural steps, relevant instrumentation, radiographic pictures, orientation cues, and anatomical highlights. Otolaryngology trainees of postgraduate years 2 through 5 (n = 13) watched a minimum of three videos and completed an assessment addressing: current resource identification/usefulness comparison, self-efficacy, impact on preparation time, and prioritization of resources. The videos rated as highly useful compared with current resources (p = 0.002) and capable of promoting self-efficacy. Residents reported moderate-high prioritization of our multi-media formatted resource (scores >6) among their current preoperative regimen. The varied videos were rated highly in terms of usefulness, promoting self-efficacy and as a high-priority for a resident's surgical preparation. Multimedia-formatted training videos should be further explored for this generation of electronic-learners. Future studies with a larger cohort, objective approaches, and multidisciplinary involvement are needed to determine the full impact of this education medium on surgical-training.

  9. Sensor and Video Monitoring of Water Quality at Bristol Floating Harbour

    Science.gov (United States)

    Chen, Yiheng; Han, Dawei

    2017-04-01

    Water system is an essential component in a smart city for its sustainability and resilience. The harbourside is a focal area of​ ​Bristol with new buildings and features redeveloped in the last ten years, attracting numerous visitors by the diversity of attractions and beautiful views. There is a strong​ ​relationship between the satisfactory of the visitors and local people with the water quality in the Harbour. The freshness and beauty of the water body would please people as well as benefit the aquatic ecosystems. As we are entering a data-rich era, this pilot project aims to explore the concept of using​ ​ video cameras and smart sensors to collect and monitor water quality condition at the Bristol harbourside. The video cameras and smart sensors are connected to the Bristol Is Open network, an open programmable city platform. This will be the​ first​ attempt to collect water quality data in real time in the​ ​Bristol urban area with the wireless network. The videos and images of the water body collected by the cameras will be correlated with the in-situ water quality parameters for research​ ​purposes. The successful implementation of the sensors can attract more academic researchers and industrial partners to expand the sensor network to multiple locations​ ​around the city covering the other parts of the Harbour and River Avon, leading to a new generation of urban system infrastructure model.

  10. Resection of the sidewall of superior vena cava using video-assisted thoracic surgery mechanical suture technique

    Science.gov (United States)

    Xu, Xin; Qiu, Yuan; Pan, Hui; Mo, Lili; Chen, Hanzhang

    2016-01-01

    Lung cancer invading the superior vena cava (SVC) is a locally advanced condition, for which poor prognosis is expected with conservative treatment alone. Surgical resection of the lesion can rapidly relieve the symptoms and significantly improve survival for some patients. Replacement, repair and partial resection of SVC via thoracotomy were generally accepted and used in the past. As the rapid development of minimally invasive techniques and devices, partial resection and repair of SVC are feasible via video-assisted thoracic surgery (VATS). However, few studies have reported the VATS surgical techniques. In this study, we reported the crucial techniques of partial resection of SVC via VATS. PMID:27076960

  11. Real-time measurement of dust in the workplace using video exposure monitoring: Farming to pharmaceuticals

    Science.gov (United States)

    Walsh, P. T.; Forth, A. R.; Clark, R. D. R.; Dowker, K. P.; Thorpe, A.

    2009-02-01

    Real-time, photometric, portable dust monitors have been employed for video exposure monitoring (VEM) to measure and highlight dust levels generated by work activities, illustrate dust control techniques, and demonstrate good practice. Two workplaces, presenting different challenges for measurement, were used to illustrate the capabilities of VEM: (a) poultry farming activities and (b) powder transfer operations in a pharmaceutical company. For the poultry farm work, the real-time monitors were calibrated with respect to the respirable and inhalable dust concentrations using cyclone and IOM reference samplers respectively. Different rankings of exposure for typical activities were found on the small farm studied here compared to previous exposure measurements at larger poultry farms: these were mainly attributed to the different scales of operation. Large variations in the ratios of respirable, inhalable and real-time monitor TWA concentrations of poultry farm dust for various activities were found. This has implications for the calibration of light-scattering dust monitors with respect to inhalable dust concentration. In the pharmaceutical application, the effectiveness of a curtain barrier for dust control when dispensing powder in a downflow booth was rapidly demonstrated.

  12. Lung abscess combined with chronic osteomyelitis of the mandible successfully treated with video-assisted thoracoscopic surgery.

    Science.gov (United States)

    Arai, Hiromasa; Inui, Kenji; Watanabe, Keisuke; Watanuki, Kei; Okudela, Koji; Tsuboi, Masahiro; Masuda, Munetaka

    2015-04-01

    With the progress of antibiotic therapy, the mortality of lung abscess has been improved, and surgical intervention has declined. However, surgery is still required in selected cases that are intractable to antibiotic treatment. Video-assisted thoracoscopic surgery (VATS) is beneficial for treatment and/or diagnosis of pulmonary disease as it provides a less invasive surgical technique and reduces prolongation of post-operative recovery. However, the indication of VATS lobectomy for lung abscess is controversial as a result of particular complications, i.e. wet lung, intrapleural adhesion and ease of bleeding. We herein report a rare combination of lung abscess and osteomyelitis of mandible resulting from the same pathogen successfully treated with VATS lobectomy. We propose VATS lobectomy for lung abscess. This procedure might be the best treatment candidate for selected cases of lung abscess.

  13. [Multiplane transesophageal echocardiography for the monitoring of cardiac surgery].

    Science.gov (United States)

    Pepi, M; Barbier, P; Doria, E; Tamborini, G; Berti, M; Muratori, M; Guazzi, M; Maltagliati, A; Alimento, M; Celeste, F

    1994-08-01

    Multiplane transesophageal echocardiography (TEE) allows visualization of the heart and great vessels through an infinite number of imaging planes and improves the diagnostic capabilities of mono and biplane TEE. This study was undertaken to test whether MTEE is a useful intraoperative monitoring method during cardiac surgery. Intraoperative multiplane TEE was performed in 200 patients (mean age 56 +/- 19 years) as a part of the routine clinical care. We systematically acquired cardiac images from the gastric fundus (short and long axes of the ventricles), lower esophagus (four-chamber, two-chamber, and long axis), upper esophagus (13 views concerning the aorta, pulmonary artery, left and right atrium, systemic and pulmonary veins, coronary arteries, right ventricular outflow tract), and searched for complete views of the thoracic descending aorta. All views analyzed in the preoperative (immediately before cardiopulmonary bypass), intraoperative and postoperative phases evaluating: the angle between current and 0 degree at which each view was obtained; the success rate of each view; the usefulness of the different views in providing essential additional clinical information compared to 0 degrees and 90 degrees of the traditional biplane TEE. Most views of the heart and great vessels were visualized in oblique planes, and other views were significantly improved thanks to slight angle corrections. Multiplane TEE was particularly useful in the preoperative and postoperative phases of aortic dissection (11 cases), mitral valve repair (13 cases), left ventricular aneurysmectomy (9 cases), right atrial thrombosis (1 case), positioning of left ventricular hemopump (2 cases), mitral-aortic endocarditis (3 cases), bleeding from proximal suture of an aortic heterograft (1 case).(ABSTRACT TRUNCATED AT 250 WORDS)

  14. Hemodynamic responses to endotracheal intubation performed with video and direct laryngoscopy in patients scheduled for major cardiac surgery.

    Science.gov (United States)

    Sarkılar, Gamze; Sargın, Mehmet; Sarıtaş, Tuba Berra; Borazan, Hale; Gök, Funda; Kılıçaslan, Alper; Otelcioğlu, Şeref

    2015-01-01

    This study aims to compare the hemodynamic responses to endotracheal intubation performed with direct and video laryngoscope in patients scheduled for cardiac surgery and to assess the airway and laryngoscopic characteristics. One hundred ten patients were equally allocated to either direct Macintosh laryngoscope (n = 55) or indirect Macintosh C-MAC video laryngoscope (n = 55). Systolic, diastolic, and mean arterial pressure, and heart rate were recorded prior to induction anesthesia, and immediately and two minutes after intubation. Airway characteristics (modified Mallampati, thyromental distance, sternomental distance, mouth opening, upper lip bite test, Wilson risk sum score), mask ventilation, laryngoscopic characteristics (Cormack-Lehane, percentage of glottic opening), intubation time, number of attempts, external pressure application, use of stylet and predictors of difficult intubation (modified Mallampati grade 3-4, thyromental distance intubation time. Number of attempts, external pressure, use of stylet, and difficult intubation parameters were similar. Endotracheal intubation performed with direct Macintosh laryngoscope or indirect Macintosh C-MAC video laryngoscope causes similar and stable hemodynamic responses.

  15. Video Recording With a GoPro in Hand and Upper Extremity Surgery.

    Science.gov (United States)

    Vara, Alexander D; Wu, John; Shin, Alexander Y; Sobol, Gregory; Wiater, Brett

    2016-10-01

    Video recordings of surgical procedures are an excellent tool for presentations, analyzing self-performance, illustrating publications, and educating surgeons and patients. Recording the surgeon's perspective with high-resolution video in the operating room or clinic has become readily available and advances in software improve the ease of editing these videos. A GoPro HERO 4 Silver or Black was mounted on a head strap and worn over the surgical scrub cap, above the loupes of the operating surgeon. Five live surgical cases were recorded with the camera. The videos were uploaded to a computer and subsequently edited with iMovie or the GoPro software. The optimal settings for both the Silver and Black editions, when operating room lights are used, were determined to be a narrow view, 1080p, 60 frames per second (fps), spot meter on, protune on with auto white balance, exposure compensation at -0.5, and without a polarizing lens. When the operating room lights were not used, it was determined that the standard settings for a GoPro camera were ideal for positioning and editing (4K, 15 frames per second, spot meter and protune off). The GoPro HERO 4 provides high-quality, the surgeon perspective, and a cost-effective video recording of upper extremity surgical procedures. Challenges include finding the optimal settings for each surgical procedure and the length of recording due to battery life limitations.

  16. Comparison of Video-Assisted Thoracoscopic Surgery and Intrapleural Urokinase as an Initial Treatment for Parapneumonic Effusion and Thoracic Empyema

    Directory of Open Access Journals (Sweden)

    Shungo Yukumi

    2014-05-01

    Full Text Available Introduction: The treatment of complicated parapneumonic effusion (PPE and thoracic empyema (TE is controversial; and the choice of treatment after confirming the failure of simple drainage remains unclear. The purpose of this study was to compare the outcomes of intrapleural urokinase (UK administration and video-assisted thoracoscopic surgery (VATS as initial treatment options for PPE and TE. Materials and Methods: We retrospectively reviewed and compared the data of 20 patients with PPE and TE diagnosed between January 2010 and December 2012 at our hospital, dividing them on the basis of the initial treatment into a video-assisted thoracoscopic surgery (VATS group (n=9 and UK group (n=11. Results: Age was the only statistically different parameter between both groups (P=0.025; with the mean age of the VATS and UK groups being 64 and 76 years, respectively. There was no significant difference in the duration of drainage or success rate between the UK or VATS groups. Although no statistically significant differences (P=0.20 were observed, duration of hospital stay was longer in the UK group (21 and 28 day for VATS and UK, respectively. Conclusion: VATS for PPE and TE may shorten the duration of hospital stay.However, UK administration may be used for selective patients because it is considered to yield outcomes similar to VATS.

  17. Study on Clinical Application of Nerve Monitor in Parotid Tumor Surgery

    Institute of Scientific and Technical Information of China (English)

    XU Liang-peng; JIA Bao-jun; AO Jian-hua; QU Dan-yang; SHENG Yan-jiao

    2014-01-01

    Objective The purpose of the study is to explore the application value of the nerve monitor adopted to pinpoint facial nerves before anatomization during a parotid tumor surgery. Methods Facial nerves of 36 patients were pinpointed by N800 nerve monitor produced by Shandong Weigao Group Medical Polymer Co. Ltd before being anatomized and exposed in parotid surgeries in order to protect the corresponding facial nerve branch and complete the related surgery. Results All the facial nerves of the 36 patients were located precisely and 108 related facial nerves were suc-cessfully anatomized and protected without any damage. Conclusion Pinpointing the facial nerve branch with a nerve monitor before anatomization pro-motes not only the efficiency of the surgery but also the safety of it and is proved to be more significant in a secondary surgery.

  18. TEE monitoring for RA-horizontal paradoxical arterial air embolism during sitting-position surgery

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    A 36-year-old woman suffered meningioma in her right cerebellopontine angle.Air embolisms often complicate sitting-position surgeries.Because TEE guides the localization of central venous catheters and promptly locates air embolisms promptly enough for effective treatment,TEE is an effective monitoring method for sitting-position surgeries.

  19. Video-assisted breast surgery can sample the second and third sentinel nodes to omit axillary node dissection for sentinel-node-positive patients.

    Science.gov (United States)

    Yamashita, K; Shimizu, K

    2009-07-01

    The preservation of the axillary node (AN) has become standard therapy for early breast cancer patients with a metastasis-positive sentinel node (SN). However, about half of the patients with metastasis in the SN have no metastasis in the other AN. Late-phase three-dimensional computed tomographic lymphography (3D-CT LG) of the breast can show the axillary lymphatic architecture from the SN into the venous angle. These nodes are classified into five groups. For the sake of aesthetics, video-assisted breast surgery (VABS) was used to sample the second and third nodes shown by 3D-CT LG. For marking the SN on the skin, 3D-CT LG was performed the day before the surgery. Iopamiron 300 (2 ml) was injected subcutaneously. A 16-channel multidetector-row helical CT image was reconstructed to produce a 3D image of the lymph ducts and nodes. A biopsy of the SN was performed by the dye-staining method using Visiport-aided endoscopy for VABS. Stained nodes were located by following the dye in the lymph ducts on a video monitor. For SN-metastasis-positive patients, standard AN dissection was performed under video assistance. Since July 2002, the authors have performed SN biopsy for 186 patients as well as 3D-CT LG and VABS SN biopsy for 146 patients. Five chained-node groups were shown. Even in the multiple SN case, the lymph ducts were converging into the second node. The second and third nodes beyond the SN were detected and sampled in 82 patients (56.2%) by VABS assisted with 3D-CT LG. Sentinel node metastasis (n = 40) involved SN metastasis alone in 21 cases (52.5%) and SN, second-node, and third-node metastasis in eight cases. A reviewed lymphoid path by 3D-CT LG confirmed that metastasis occurred in order of lymph flow. The use of 3D-CT LG-guided VABS SN biopsy of the second and third nodes will predict SN metastasis alone and help to obviate the need for dissection of more nodes.

  20. Video and thermal imaging system for monitoring interiors of high temperature reaction vessels

    Science.gov (United States)

    Saveliev, Alexei V [Chicago, IL; Zelepouga, Serguei A [Hoffman Estates, IL; Rue, David M [Chicago, IL

    2012-01-10

    A system and method for real-time monitoring of the interior of a combustor or gasifier wherein light emitted by the interior surface of a refractory wall of the combustor or gasifier is collected using an imaging fiber optic bundle having a light receiving end and a light output end. Color information in the light is captured with primary color (RGB) filters or complimentary color (GMCY) filters placed over individual pixels of color sensors disposed within a digital color camera in a BAYER mosaic layout, producing RGB signal outputs or GMCY signal outputs. The signal outputs are processed using intensity ratios of the primary color filters or the complimentary color filters, producing video images and/or thermal images of the interior of the combustor or gasifier.

  1. Morphodynamics video monitoring and modelling of storm events at Jesolo, Northern Adriatic Sea

    Science.gov (United States)

    Archetti, Renata; Bonaldo, Davide; Carniel, Sandro; Parlagreco, Luca

    2014-05-01

    Near-shore zone morphodynamic assessment is crucial for beach management and hinterland protection against flooding. To this aim, high resolution coastal models are a useful tool, as they allow to couple waves, currents and sediment transport processes for simulating short term morphodynamics and coastal flooding due to extreme storm events. Calibration and validation of high resolution modelling needs coastal in-situ observations. The collection of data representative of the state of the coastal environment, essential for proper set up and calibration of the numerical models, is nonetheless a challenging and expensive task. In the framework of the Italian Flagship Project RITMARE—the Italian Research for the Sea, Subproject 3 (Coastal Waters), Workpackage 4 (Coastal Oceanographic Modeling), the North Adriatic littoral zone has been identified as one Strategic Test Area for the study of coastal dynamics and for the collection of a time series of integrated of integrated measurements to support comprehensive, detailed insight on coastal circulation, wave dynamics, sediment transport and coastal erosion. More specifically, this activity proposes and validates a system for the monitoring and modelling of hydrodynamics and morphodynamics at the beach of Jesolo, about 30 km NE Venice. The system combines a video installation and a 2DH numerical model to simultaneously provide shoreline changes and maps of nearshore waves and currents and sediment transport. In this way the system can cope with issues such as beach flooding, shoreline evolution and morphodynamic nearshore changes. The proposed poster will present first results of wave - currents - sediment simulations with the software Mike21, during selected storm events, and validation of results with in situ observation (shoreline, bar position) collected by the new video monitoring station.

  2. Video-assisted thoracoscopic surgery resection and reconstruction of thoracic trachea in the management of a tracheal neoplasm

    Science.gov (United States)

    Li, Shuben; Liu, Jun; He, Jiaxi; Dong, Qinglong; Liang, Lixia; Yin, Weiqiang; Pan, Hui

    2016-01-01

    Intratracheal tumor is a rare tumor, accounting for only 2% of upper respiratory tract neoplasms. Its symptoms are similar to those of head and neck cancers, including coughing up blood, sore throat, and airway obstruction. The diagnosis of this disease is often based on the findings of fibrobronchoscopy or computed tomography (CT). Surgery remains the treatment of choice for tracheal tumor. In patients with benign neoplasms or if the tumors have limited involvement, fibrobronchoscopic resection of the tumor can be performed. For malignant tumors, however, radical resection is required. In the past, open incision is used during the surgery for tumors located in thoracic trachea. Along with advances in video-assisted thoracoscopic surgery (VATS) minimally invasive techniques and devices, VATS resection and reconstruction of the trachea can achieve the radical resection of the tumor and meanwhile dramatically reduce the injury to the patients. In this article we describe the application of VATS resection and reconstruction of trachea in the management of a tracheal neoplasm. PMID:27076958

  3. Cataract Surgery

    Science.gov (United States)

    ... and Videos: What Do Cataracts Look Like? Cataract Surgery Written By: Kierstan Boyd Reviewed By: Elena M ... how they work. What to expect with cataract surgery Before surgery: Your ophthalmologist will measure your eye ...

  4. Performance Test of the First Prototype of 2 Ways Video Camera for the Muon Barrel Position Monitor

    CERN Document Server

    Brunel, Laurent; Bondar, Tamas; Bencze, Gyorgy; Raics, Peter; Szabó, Jozsef

    1998-01-01

    The CMS Barrel Position Monitor is based on 360 video cameras mounted on 36 very stable mechanical structures. One type of camera is used to observe optical sources mounted on the muon chambers. A first prototype was produced to test the main performances. This report gives the experimental results about stability, linearity and temperature effects.

  5. Seizures in the intrahippocampal kainic acid epilepsy model: Characterization using long-term video-EEG monitoring in the rat

    NARCIS (Netherlands)

    R. Raedt; A. Van Dycke; D. Van Melkebeke; T. De Smedt; P. Claeys; T. Wyckhuys; K. Vonck; W. Wadman; P. Boon

    2009-01-01

    Objective - Intrahippocampal injection of kainic acid (KA) in rats evokes a status epilepticus (SE) and leads to spontaneous seizures. However to date, precise electroencephalographic (EEG) and clinical characterization of spontaneous seizures in this epilepsy model using long-term video-EEG monitor

  6. Cost-Benefit Performance of Robotic Surgery Compared with Video-Assisted Thoracoscopic Surgery under the Japanese National Health Insurance System.

    Science.gov (United States)

    Kajiwara, Naohiro; Patrick Barron, James; Kato, Yasufumi; Kakihana, Masatoshi; Ohira, Tatsuo; Kawate, Norihiko; Ikeda, Norihiko

    2015-01-01

    Medical economics have significant impact on the entire country. The explosion in surgical techniques has been accompanied by questions regarding actual improvements in outcome and cost-effectiveness, such as the da Vinci(®) Surgical System (dVS) compared with conventional video-assisted thoracic surgery (VATS). To establish a medical fee system for robot-assisted thoracic surgery (RATS), which is a system not yet firmly established in Japan. This study examines the cost benefit performance (CBP) based on medical fees compared with VATS and RATS under the Japanese National Health Insurance System (JNHIS) introduced in 2012. The projected (but as yet undecided) price in the JNHIS would be insufficient if institutions have less than even 200 dVS cases per year. Only institutions which perform more than 300 dVS operations per year would obtain a positive CBP with the projected JNHIS reimbursement. Thus, under the present conditions, it is necessary to perform at least 300 dVS operations per year in each institution with a dVS system to avoid financial deficit with current robotic surgical management. This may hopefully encourage a downward price revision of the dVS equipment by the manufacture which would result in a decrease in the cost per procedure.

  7. Is it safe to perform completion lobectomy after diagnostic wedge resection using video-assisted thoracoscopic surgery?

    DEFF Research Database (Denmark)

    Holbek, Bo Laksáfoss; Petersen, René Horsleben; Hansen, Henrik Jessen

    2016-01-01

    OBJECTIVES: The objective of this study was to assess the safety of video-assisted thoracoscopic surgery (VATS) completion lobectomy (CL) for non-small cell lung cancer (NSCLC) after diagnostic wedge resection by comparing with standard VATS lobectomy (SL). METHODS: Data were retrieved from...... test. RESULTS: In total 80 CL and 958 SLs were performed. There were no significant differences in median operating time, median chest drain duration or median length of stay. Median operative bleeding was 100 mL (IQR 50-238) in the CL group compared to 75 mL (IQR 25-200) in the SL group (p = 0.......99). CONCLUSIONS: This study comparing short-term surgical outcome and complications after surgical treatment of NSCLC indicates that VATS completion lobectomy after diagnostic wedge resection seems safe when looking at a relatively short time interval between the two procedures....

  8. Modification of the Miyake-Apple technique for simultaneous anterior and posterior video imaging of wet laboratory-based corneal surgery.

    Science.gov (United States)

    Tan, Johnson C H; Meadows, Howard; Gupta, Aanchal; Yeung, Sonia N; Moloney, Gregory

    2014-03-01

    The aim of this study was to describe a modification of the Miyake-Apple posterior video analysis for the simultaneous visualization of the anterior and posterior corneal surfaces during wet laboratory-based deep anterior lamellar keratoplasty (DALK). A human donor corneoscleral button was affixed to a microscope slide and placed onto a custom-made mounting box. A big bubble DALK was performed on the cornea in the wet laboratory. An 11-diopter intraocular lens was positioned over the aperture of the back camera of an iPhone. This served to video record the posterior view of the corneoscleral button during the big bubble formation. An overhead operating microscope with an attached video camcorder recorded the anterior view during the surgery. The anterior and posterior views of the wet laboratory-based DALK surgery were simultaneously captured and edited using video editing software. The formation of the big bubble can be studied. This video recording camera system has the potential to act as a valuable research and teaching tool in corneal lamellar surgery, especially in the behavior of the big bubble formation in DALK.

  9. Applications of Video-assisted Thoracic Surgery for the Diagnosis and Treatment 
of Patients with Small Pulmonary Nodules

    Directory of Open Access Journals (Sweden)

    Liqun SHAN

    2013-07-01

    Full Text Available Background and objective Chest computed tomography (CT, particularly thin-slice high resolution CT, has low sensitivity and specificity for detecting pulmonary nodules <10 mm in size. This limitation leads to challenges in clinical diagnosis and treatment of small pulmonary nodules. This study introduces the use of video-assisted thoracoscopic surgery (VATS for the diagnosis and treatment of small pulmonary nodules. Methods From November 2009 to May 2012, 64 patients with small pulmonary nodules without prior preoperative pathologic diagnosis were treated by pulmonary wedge resection through VATS. The diagnosis of small pulmonary nodules was established from rapid frozen section. The type of operation depends on the pathology and the condition of the patients. Twenty patients with primary lung cancer were subjected to lobectomy and radical resection of the lymph nodes by complete thoracospic lobectomy or video-assisted thoracoscopic invasive lobectomy. Pulmonary wedge resection was performed in 44 patients, among whom 21 have benign nodule, 18 have precancerous lesion, 3 have metastatic nodule, and 2 have primary lung cancer for which lobectomy was not fit. Results Confirmative diagnosis is difficult to obtain among patients with small pulmonary nodules. VATS is effective in the diagnosis and treatment of small pulmonary nodules. With VATS, patients with benign small pulmonary nodules can be cured, and patients with primary lung cancer can receive definite diagnosis and effective treatment in time. Conclusion CT-guided hook-wire fixation is useful in precise lesion localization for surgical resection.

  10. Video-assisted breast surgery and sentinel lymph node biopsy guided by three-dimensional computed tomographic lymphography.

    Science.gov (United States)

    Yamashita, K; Shimizu, K

    2008-02-01

    Video-assisted breast surgery (VABS) is a less invasive and aesthetically better option for benign and malignant breast diseases and for sentinel lymph node biopsy (SLNB). The authors have performed 150 VABS procedures since December 2001. They have examined the usefulness of three-dimensional computed tomographic (3D-CT) lymphography for detecting sentinel lymph nodes (SLNs) precisely, as well as the cosmetic and treatment results of VABS. In this study, VABS was performed with a 2.5-cm skin incision in the axilla or periareola (1 cm in the axilla for SLNB), using a retraction method, for mammary gland resection, SLNB, axillary lymph node dissection, and breast reconstruction under video assistance. On the day before the surgery, 3D-CT lymphography was performed to mark SLN on the skin. Above the tumor and near the areola, 2 ml of Iopamiron 300 was injected subcutaneously. A 16-channnel multidetector-row helical CT scan image was taken after 1 min and reconstructed to produce a 3D image. Sentinel lymph node biopsy was performed by the VABS technique using the Visiport. The VABS procedure was performed for 19 benign and 131 malignant diseases, and 115 SLNBs (74 with 3D-CT) were performed. The SLNs were shown precisely by 3D-CT lymphography, as proved by a case of lymph node metastasis, in which accurate relationships between lymph ducts and SLNs were shown. These were classified into four patterns: a single duct to single node (40 cases), multiple ducts to a single node (13 cases), a single duct to multiple nodes (1 case), and multiple ducts to multiple nodes (12 cases). The SLNB procedure can be performed safely by 3D-CT lymphography and less invasively by VABS. The findings show that 3D-CT lymphography is useful for performing precise SLNB using VABS.

  11. Noninvasive monitoring of PaCO2 during one-lung ventilation and minimal access surgery in adults: End-tidal versus transcutaneous techniques

    OpenAIRE

    Cox, Paul; Tobias, Joseph D.

    2007-01-01

    Background: Previous studies have suggested that end-tidal CO2 (ET-CO2) may be inaccurate during one-lung ventilation (OLV). This study was performed to compare the accuracy of the noninvasive monitoring of PCO2 using transcutaneous CO2 (TC-CO2) with ET-CO2 in patients undergoing video-assisted thoracoscopic surgery (VATS) during OLV. Materials and Methods: In adult patients undergoing thoracoscopic surgical procedures, PCO2 was simultaneously measured with TC-CO2 and ET-CO2 devices and compa...

  12. Video-assisted thoracic surgery and anatomical lung resections. Where do we stand? National survey by the Spanish Society of Thoracic Surgery.

    Science.gov (United States)

    Embun, Raul; Martínez Hernández, Néstor; Call, Sergi; de Olaiz Navarro, Beatriz; Zabaleta, Jon; Ramos, Ricard; Galbis, Jose; Moreno, Nicolás

    2017-01-01

    The objective of this survey is to find out the cumulated experience and the current situation of video-assisted thoracic surgery (VATS) for anatomical lung resections in Spain. This is a descriptive study performed from two independent surveys designed through the Survey Monkey(®) web platform. The first survey was aimed at 53 thoracic surgery departments from the public and state-assisted national health system. The second survey, of a personal nature, was directed at 315 thoracic surgeons in active service, including physicians at their residency program. The surveys were kept operative from 18/11/2014 to 15/01/2015. The first survey was answered by 32 (60%) departments and the second by 167 (53%) professionals. A total of 29 (91%) of the thoracic surgery departments represented recognized having some level of experience in this technique. However, a great proportion of departments, 15 (52%), counted less than 100 procedures and the cumulated time of experience was lower than 5 years in 19 (66%) departments. Among all the individual respondents, 126 (77%) admitted having performed the procedure at some point. Of those without any experience, at least 36 (95%) of them recognized that future training in this technique is one of their future professional objectives. Waiting for future prospective national registries contribute further information about the expansion of this technique in our country, the results of the current survey show, up to now, the best reflection of clinical practice and opinion of the surgeons involved in the development of VATS. Copyright © 2016 AEC. Publicado por Elsevier España, S.L.U. All rights reserved.

  13. FishCam - A semi-automatic video-based monitoring system of fish migration

    Science.gov (United States)

    Kratzert, Frederik; Mader, Helmut

    2016-04-01

    One of the main objectives of the Water Framework Directive is to preserve and restore the continuum of river networks. Regarding vertebrate migration, fish passes are widely used measure to overcome anthropogenic constructions. Functionality of this measure needs to be verified by monitoring. In this study we propose a newly developed monitoring system, named FishCam, to observe fish migration especially in fish passes without contact and without imposing stress on fish. To avoid time and cost consuming field work for fish pass monitoring, this project aims to develop a semi-automatic monitoring system that enables a continuous observation of fish migration. The system consists of a detection tunnel and a high resolution camera, which is mainly based on the technology of security cameras. If changes in the image, e.g. by migrating fish or drifting particles, are detected by a motion sensor, the camera system starts recording and continues until no further motion is detectable. An ongoing key challenge in this project is the development of robust software, which counts, measures and classifies the passing fish. To achieve this goal, many different computer vision tasks and classification steps have to be combined. Moving objects have to be detected and separated from the static part of the image, objects have to be tracked throughout the entire video and fish have to be separated from non-fish objects (e.g. foliage and woody debris, shadows and light reflections). Subsequently, the length of all detected fish needs to be determined and fish should be classified into species. The object classification in fish and non-fish objects is realized through ensembles of state-of-the-art classifiers on a single image per object. The choice of the best image for classification is implemented through a newly developed "fish benchmark" value. This value compares the actual shape of the object with a schematic model of side-specific fish. To enable an automatization of the

  14. Lung surgery - discharge

    Science.gov (United States)

    ... Lung biopsy - discharge; Thoracoscopy - discharge; Video-assisted thoracoscopic surgery - discharge; VATS - discharge ... milk) for 2 weeks after video-assisted thoracoscopic surgery and 6 to 8 weeks after open surgery. ...

  15. Subjective evaluation of the accuracy of video imaging prediction following orthognathic surgery in Chinese patients

    NARCIS (Netherlands)

    Chew, Ming Tak; Koh, Chay Hui; Sandham, John; Wong, Hwee Bee

    Purpose: The aims of this retrospective study were to assess the subjective accuracy of predictions generated by a computer imaging software in Chinese patients who had undergone orthognathic surgery and to determine the influence of initial dysgnathia and complexity of the surgical procedure on

  16. Subjective evaluation of the accuracy of video imaging prediction following orthognathic surgery in Chinese patients

    NARCIS (Netherlands)

    Chew, Ming Tak; Koh, Chay Hui; Sandham, John; Wong, Hwee Bee

    2008-01-01

    Purpose: The aims of this retrospective study were to assess the subjective accuracy of predictions generated by a computer imaging software in Chinese patients who had undergone orthognathic surgery and to determine the influence of initial dysgnathia and complexity of the surgical procedure on pre

  17. Intraoperative neurophysiologic monitoring in spine surgery. Developments and state of the art in France in 2011.

    Science.gov (United States)

    Gavaret, M; Jouve, J L; Péréon, Y; Accadbled, F; André-Obadia, N; Azabou, E; Blondel, B; Bollini, G; Delécrin, J; Farcy, J-P; Fournet-Fayard, J; Garin, C; Henry, P; Manel, V; Mutschler, V; Perrin, G; Sales de Gauzy, J

    2013-10-01

    Intraoperative spinal cord monitoring consists in a subcontinuous evaluation of spinal cord sensory-motor functions and allows the reduction the incidence of neurological complications resulting from spinal surgery. A combination of techniques is used: somatosensory evoked potentials (SSEP), motor evoked potentials (MEP), neurogenic motor evoked potentials (NMEP), D waves, and pedicular screw testing. In absence of intraoperative neurophysiological testing, the intraoperative wake-up test is a true form of monitoring even if its latency long and its precision variable. A 2011 survey of 117 French spinal surgeons showed that only 36% had neurophysiological monitoring available (public healthcare facilities, 42%; private facilities, 27%). Monitoring can be performed by a neurophysiologist in the operating room, remotely using a network, or directly by the surgeon. Intraoperative alerts allow real-time diagnosis of impending neurological injury. Use of spinal electrodes, moved along the medullary canal, can determine the lesion level (NMEP, D waves). The response to a monitoring alert should take into account the phase of the surgical intervention and does not systematically lead to interruption of the intervention. Multimodal intraoperative monitoring, in presence of a neurophysiologist, in collaboration with the anesthesiologist, is the most reliable technique available. However, no monitoring technique can predict a delayed-onset paraplegia that appears after the end of surgery. In cases of preexisting neurological deficit, monitoring contributes little. Monitoring of the L1-L4 spinal roots also shows low reliability. Therefore, monitoring has no indication in discal and degenerative surgery of the spinal surgery. However, testing pedicular screws can be useful. All in all, thoracic and thoracolumbar vertebral deviations, with normal preoperative neurological examination are currently the essential indication for spinal cord monitoring. Its absence in this

  18. Important Non-Technical Skills in Video-Assisted Thoracoscopic Surgery Lobectomy

    DEFF Research Database (Denmark)

    Gjeraa, Kirsten; Mundt, Anna S; Spanager, Lene

    2017-01-01

    , problem solving, leadership, risk assessment, and teamwork. These non-technical skills enabled the team to achieve shared mental models, which in turn facilitated their efforts to anticipate next steps. This was viewed as important by the participants as they saw VATS lobectomy as a high-risk procedure......BACKGROUND: Safety in the operating room is dependent on the team's non-technical skills. The importance of non-technical skills appears to be different for minimally invasive surgery as compared with open surgery. The aim of this study was to identify which non-technical skills are perceived...... analysis was deductive, and directed content analysis was used to code the text into the Oxford Non-Technical Skills system for evaluating operating teams' non-technical skills. RESULTS: The most important non-technical skills described by the VATS teams were planning and preparation, situation awareness...

  19. Complex uniportal video-assisted thoracoscopic sleeve lobectomy during live surgery broadcasting.

    Science.gov (United States)

    Yang, Yang; Guerrero, William Guido; Algitmi, Iskander; Gonzalez-Rivas, Diego

    2016-06-01

    The uniportal approach for major pulmonary resections began in 2010 with the first case being performed by González-Rivas and colleagues in La Coruña. Since then a number of teams around the world had being performing hundreds of cases, applying it to more advance and complex cases recently. The technique has been reported to be feasible and reliable with similar results to that obtained in early stage lung cancer lobectomies. The case presented in this article is an example of an extreme condition: very obese patient, strong adhesions, fused lower lobe to the diaphragm and enlarged inflammatory adenopathies that made the procedure very technically challenging. In addition, the surgery was performed during a live surgery event and it was broadcasted to an auditorium. However, the case was successfully completed through a uniportal VATS approach with no complications.

  20. The development of new instruments (NT forceps) for video-assisted thoracoscopic surgery.

    Science.gov (United States)

    Tanaka, Ryota; Nakazato, Yoshimasa; Goya, Tomoyuki

    2011-02-01

    A new type of forceps (NT forceps) was developed in November 2007, designed for dividing connective tissues and for holding tissue together. These forceps measure 32 cm in length and are made of stainless steel. The insides of the forceps have atraumatic dispositions because longitudinal notches are placed on them. Therefore, they can grasp important soft organs such as the lung, azygos, and pulmonary vein. In addition, the acral forceps also possess carbide chips with cross notches. They can therefore hold vessel tape, sutures, etc. There are two types of forceps, which are curved at different angles, either a sharp angle or a slight angle. The forceps can be used for dividing and holding tissue while performing basic surgical manipulations, especially during an operation using a video-assisted procedure with a mini-thoracotomy. These forceps are useful tools for performing technical manipulations for standard operations, such as a lobectomy.

  1. Intraoperative microvascular Doppler monitoring in intracranial aneurysm surgery

    Institute of Scientific and Technical Information of China (English)

    HUI Pin-jing; YAN Yan-hong; ZHANG Shi-ming; WANG Zhong; YU Zheng-quan; ZHOU You-xin; LI Xiang-dong

    2013-01-01

    Background Surgical treatment of intracranial aneurysms is often compromised by incomplete exclusion of the aneurysm or stenosis of parent vessels.Intraoperative microvascular Doppler (IMD) is an attractive,noninvasive,and inexpensive tool.The present study aimed to evaluate the usefulness and reliability of IMD for guiding clip placement in aneurysm surgery.Methods A total of 92 patients with 101 intracranial aneurysms were included in the study.IMD with a 1.5-mm diameter,20-MHz microprobe was used before and after clip application to confirm aneurysm obliteration and patency of parent vessels and branching arteries.IMD findings were verified postoperatively with digital subtraction angiography (DSA) or dual energy computed tomography angiography (DE-CTA).Ninety consecutive patients,harboring 108 aneurysms,who underwent surgery without IMD was considered as the control group.Results The microprobe detected all vessels of the Circle of Willis and their major branches.Clips were repositioned in 24 (23.8%) aneurysms on the basis of the IMD findings consistent with incomplete exclusion and/or stenosis.IMD identified persistent weak blood flow through the aneurismal sac of 11 of the 101 (10.9%) aneurysms requiring clip adjustment.Stenosis or occlusion of the parent or branching arteries as indicated by IMD necessitated immediate clip adjustment in 19 aneurysms (18.8%).The mean duration of the IMD procedure was 4.8 minutes.The frequency of clip adjustment (mean:1.8 times per case) was associated with the size and location of the aneurysm.There were no complications related to the use of IMD,and postoperative angiograms confirmed complete aneurysm exclusion and parent vessel patency.About 8.3% (9/108) aneurysms were unexpectedly incompletely occluded,and 10.2% (11/108) aneurysms and parent vessel stenosis without IMD were detected by postoperative DSA or DE-CTA.IMD could reduce the rate of residual aneurysm and unanticipated vessel stenosis which demonstrated

  2. Computerized monitoring of physical activity and sleep in postoperative abdominal surgery patients

    DEFF Research Database (Denmark)

    Bisgaard, T; Kjaersgaard, M; Bernhard, A;

    1999-01-01

    OBJECTIVE: Assessment of early postoperative activity is important in the documentation of improvements of peri-operative care. This study was designed to validate computerized activity-based monitoring of physical activity and sleep (actigraphy) in patients after abdominal surgery. METHODS...... physical activity and sleep-wake cycles after major abdominal surgery.......: The study included twelve hospitalized patients after major abdominal surgery studied on day 2 to 4 after operation and twelve unhospitalized healthy volunteers. Measurements were performed for 24 consecutive hours. The actigraphy measurements were compared with self-reported activity- and sleep...

  3. Minimally invasive (robotic assisted thoracic surgery and video-assisted thoracic surgery) lobectomy for the treatment of locally advanced non-small cell lung cancer

    Science.gov (United States)

    Yang, Hao-Xian; Woo, Kaitlin M.; Sima, Camelia S.

    2016-01-01

    Background Insufficient data exist on the results of minimally invasive surgery (MIS) for locally advanced non-small cell lung cancer (NSCLC) traditionally approached by thoracotomy. The use of telerobotic surgical systems may allow for greater utilization of MIS approaches to locally advanced disease. We will review the existing literature on MIS for locally advanced disease and briefly report on the results of a recent study conducted at our institution. Methods We performed a retrospective review of a prospective single institution database to identify patients with clinical stage II and IIIA NSCLC who underwent lobectomy following induction chemotherapy. The patients were classified into two groups (MIS and thoracotomy) and were compared for differences in outcomes and survival. Results From January 2002 to December 2013, 428 patients {397 thoracotomy, 31 MIS [17 robotic and 14 video-assisted thoracic surgery (VATS)]} underwent induction chemotherapy followed by lobectomy. The conversion rate in the MIS group was 26% (8/31) The R0 resection rate was similar between the groups (97% for MIS vs. 94% for thoracotomy; P=0.71), as was postoperative morbidity (32% for MIS vs. 33% for thoracotomy; P=0.99). The median length of hospital stay was shorter in the MIS group (4 vs. 5 days; P<0.001). The 3-year overall survival (OS) was 48.3% in the MIS group and 56.6% in the thoracotomy group (P=0.84); the corresponding 3-year DFS were 49.0% and 42.1% (P=0.19). Conclusions In appropriately selected patients with NSCLC, MIS approaches to lobectomy following induction therapy are feasible and associated with similar disease-free and OS to those following thoracotomy. PMID:27195138

  4. Effect of video-assisted thoracoscopic surgery and traditional open surgery on the inflammatory cytokine and immune function in patients with non-small cell lung carcinoma

    Institute of Scientific and Technical Information of China (English)

    Bing Lv; Yongzhong Tao; Jing Wu; Bin Zhong; Fuchao Luo; Yang Liu; Zexue Zhang

    2016-01-01

    Objective:To explore the effect of video-assisted thoracoscopic surgery (VATS) and traditional open surgery (TOS) on the inflammatory cytokine and immune function in patients with non-small cell lung carcinoma.Methods: A total of 68 patients with non-small cell lung carcinoma were included in the study and divided into VATS group and TOS group according to different surgical methods with 34 cases in each group. The operation time, intraoperative amount of bleeding, incision length, and lymph node dissection number after operation in the two groups were compared. The levels of serum IL-6 and CRP after operation in the two groups were detected and compared. The immunological function status before and after operation in the two groups was analyzed.Results: The operation time and intraoperative amount of bleeding in VATS group were significantly reduced, and the incision length was significantly shortened when compared with TOS group. IgG, CD4+, and CD8+ levels, and CD4+/CD8+ after operation in the two groups were significantly reduced when compared with before treatment, and those in TOS group were significantly lower than those in VATS group. IL-6 and CRP levels 1d after operation in the two groups were significantly elevated when compared with before operation, and those in TOS group were significantly higher than those in VATS group. IL-6 and CRP levels 5d after operation in VATS group were not significantly different from those before operation, while those in TOS group were significantly elevated when compared with before operation.Conclusions:VATS in the treatment of non-small cell lung carcinoma has a significant efficacy, can significantly alleviate the inflammatory reaction, and is beneficial to protect the immunological function.

  5. Fiber optic video monitoring system for remote CT/MR scanners clinically accepted

    Science.gov (United States)

    Tecotzky, Raymond H.; Bazzill, Todd M.; Eldredge, Sandra L.; Tagawa, James; Sayre, James W.

    1992-07-01

    With the proliferation of CT travel to distant scanners to review images before their patients can be released. We designed a fiber-optic broadband video system to transmit images from seven scanner consoles to fourteen remote monitoring stations in real time. This system has been used clinically by radiologists for over one years. We designed and conducted a user survey to categorize the levels of system use by section (Chest, GI, GU, Bone, Neuro, Peds, etc.), to measure operational utilization and acceptance of the system into the clinical environment, to clarify the system''s importance as a clinical tool for saving radiologists travel-time to distant CT the system''s performance and limitations as a diagnostic tool. The study was administered directly to radiologists using a printed survey form. The results of the survey''s compiled data show a high percentage of system usage by a wide spectrum of radiologists. Clearly, this system has been accepted into the clinical environment as a highly valued diagnostic tool in terms of time savings and functional flexibility.

  6. Pre-emptive local analgesia in video-assisted thoracic surgery sympathectomy.

    Science.gov (United States)

    Fiorelli, Alfonso; Vicidomini, Giovanni; Laperuta, Paolo; Busiello, Luigi; Perrone, Anna; Napolitano, Filomena; Messina, Gaetana; Santini, Mario

    2010-03-01

    Our goal is to determine whether infiltration with a short-acting local anaesthetic such as lidocaine before the surgical incision has a pre-emptive effect on postoperative pain intensity and on incidence of paraesthesia in patients undergoing standard thoracoscopic sympathectomy for palmar hyperhidrosis. This prospective study includes a consecutive series of 18 patients undergoing bilateral standard thoracoscopic sympathectomy for palmar hyperhidrosis during January 2005-December 2007. Each patient enrolled in the study was randomised to receive pre-incisional lidocaine with epinephrine infiltration of the wounds on the one side, and normal saline solution on the other. The identical surgery was performed on each side to allow patients to act as their own controls. Then, the side which received local analgesia was compared with the control side with regard to pain control and paraesthesia after 4, 24 and 168 h postoperatively. The patients and investigators were both blinded concerning the side randomised to receive pre-emptive local analgesia (PLA). We found that patients reported significantly less pain on the side treated with pre-emptive local anaesthesia in contrast to the control side 4 and 24h after surgery (p=0.001 and p=0.004, respectively). However, that difference decreased with time and was no longer significant 168 h following surgery (p=0.156). Regarding the paraesthesia, the incidence was higher in the control side than the PLA side at 4, 24 and 168 h postoperatively, but the difference was not statistically significant. A total of 17 of 18 (94%) patients noted a change in palmar hyperhidrosis status after surgery. Our study shows that the pre-injection of local anaesthetic before standard thoracoscopic sympathectomy suppresses the local pain mediators, hence resulting in significantly less pain in the first postoperative 24 h but not thereafter. The clinical impact of the procedure is the possibility of early discharge to home and early return to

  7. Single-incision versus multiport video-assisted thoracoscopic surgery in the treatment of lung cancer: a systematic review and meta-analysis.

    Science.gov (United States)

    Yang, Zhang; Shen, Zhenghai; Zhou, Qinghua; Huang, Yunchao

    2017-09-21

    Recent studies compared single-incision thoracoscopic surgery (SITS) with more widely used conventional multiport video-assisted thoracoscopic surgery in the treatment of lung cancer. To establish the safety and feasible of SITS in the treatment of lung cancer, we conducted this systematic review and meta-analysis. Eleven studies were identified from the databases of PubMed, Cochrane Library, SpringerLink, and ScienceDirect. The randomized controlled trials (RCTs) and non-randomized studies evaluated the outcomes of SITS compared with multiport video-assisted thoracoscopic surgery in the treatment of lung cancer were included for analysis. Odds ratio (OR, used to compare dichotomous variables) and weight mean difference (WMD, used to compare continuous variables) were calculated with 95% confidence intervals (CIs) based on intention-to-treat analysis. Eleven studies including 1314 patients were included for analysis. Our analysis showed that the operative time, blood loss amount, mean duration of chest tube, lymph nodes retrieved were similar between two approaches, the SITS pulmonary resection might be associated with shorter hospital stay (p = .008) and lower complication rate (p = .009) when compared with conventional multiport video-assisted thoracoscopic surgery approaches. In selected patients SITS is safe, feasible and may be considered an alternative to multiport VATS.

  8. The importance of hemodynamic monitoring in mitrocuspid surgery

    OpenAIRE

    Dobrić Biljana J.; Petrović Jasna S.; Radovanović Ninoslav D.

    2006-01-01

    Introduction. Untreated mitral valve disease is associated with marked hemodynamic disorders, low ejection fraction (EF) and poor perfusion. The study aimed to explore the importance of hemodynamic monitoring in intraoperative evaluation and treatment of these patients. Material and methods. This prospective study included 85 patients: group I: 41 patients, EF<40%; group II: 44 patients, EF>40%. Hemodynamic parameters were recorded after initation of anesthesia (1), after sternotomy (2)...

  9. Developing the Storyline for an Advance Care Planning Video for Surgery Patients: Patient-Centered Outcomes Research Engagement from Stakeholder Summit to State Fair.

    Science.gov (United States)

    Aslakson, Rebecca A; Schuster, Anne L R; Lynch, Thomas J; Weiss, Matthew J; Gregg, Lydia; Miller, Judith; Isenberg, Sarina R; Crossnohere, Norah L; Conca-Cheng, Alison M; Volandes, Angelo E; Smith, Thomas J; Bridges, John F P

    2017-08-17

    Patient-centered outcomes research (PCOR) methods and social learning theory (SLT) require intensive interaction between researchers and stakeholders. Advance care planning (ACP) is valuable before major surgery, but a systematic review found no extant perioperative ACP tools. Consequently, PCOR methods and SLT can inform the development of an ACP educational video for patients and families preparing for major surgery. The objective is to develop and test acceptability of an ACP video storyline. The design is a stakeholder-guided development of the ACP video storyline. Design-thinking methods explored and prioritized stakeholder perspectives. Patients and family members evaluated storyboards containing the proposed storyline. The study was conducted at hospital outpatient surgical clinics, in-person stakeholder summit, and the 2014 Maryland State Fair. Measurements are done through stakeholder engagement and deidentified survey. Stakeholders evaluated and prioritized evidence from an environmental scan. A surgeon, family member, and palliative care physician team iteratively developed a script featuring 12 core themes and worked with a medical graphic designer to translate the script into storyboards. For 10 days, 359 attendees of the 2014 Maryland State Fair evaluated the storyboards and 87% noted that they would be "very comfortable" or "comfortable" seeing the storyboard before major surgery, 89% considered the storyboards "very helpful" or "helpful," and 89% would "definitely recommend" or "recommend" this story to others preparing for major surgery. Through an iterative process utilizing diverse PCOR engagement methods and informed by SLT, storyboards were developed for an ACP video. Field testing revealed the storyline to be highly meaningful for surgery patients and family members.

  10. Intraoperative auditory monitoring in vestibular schwannoma surgery: new trends.

    Science.gov (United States)

    Schmerber, Sébastien; Lavieille, Jean-Pierre; Dumas, Georges; Herve, Thierry

    2004-01-01

    To investigate the efficiency of a new method of brainstem auditory-evoked potential (BAEP) monitoring during complete vestibular schwannoma (VS) resection with attempted hearing preservation. Dedicated software providing near real-time recording was developed using a rejection strategy of artifacts based on spectral analysis. A small sample number (maximum 200) is required and results are obtained within 10 s. Fourteen consecutive patients with hearing class A operated on for VS, in an attempt to preserve hearing, participated in the investigation. Postoperatively, 7 patients (50%) had useful hearing (hearing class A, 4/14; hearing class B, 3/14) on the operated side. Seven patients (50%) were reduced to hearing class D. Drilling of the internal auditory canal (IAC) and tumor removal at the lateral end of the IAC were identified as the two most critical steps for achieving hearing preservation. Intraoperative BAEP monitoring was sensitive in detecting auditory damage with useful feedback but its effectiveness in preventing irreversible hearing impairment was not demonstrated in this study. Combined BAEP and direct auditory nerve monitoring using the same equipment will be performed in the future in an attempt to enhance the chances of preventing irreversible hearing damage, and possibly to improve the hearing outcome significantly.

  11. [Microdialysis of cutaneous free flaps to monitor results of maxillofacial surgery].

    Science.gov (United States)

    Brix, M; Muret, P; Mac-Mary, S; Ricbourg, B; Humbert, P

    2006-02-01

    The development of in vivo microdialysis has made it possible to monitor cutaneous free flaps in maxillo-facial surgery. A microprobe inserted in the free flap dermis collects a microdialysate enabling measurement of dermal metabolites such as glucose, lactate, pyruvate, or glycerol. The monitoring curves are predictive of ischemia-related tissue injury. Hourly measurements provide a reliable method for early diagnosis of venous or arterial thrombosis. Revision surgery can then be undertaken if needed to repair microanastomoses before clinical alteration. This technique has been compared with validated flaps monitoring systems such as temperature probe, transcutaneous oxygen tension monitoring, and laser Doppler flowmetry. Microdialysis has several advantages: objective measurements, different curves for venous and arterial thrombosis, early diagnosis. Accessibility to oral cavity or pharyngeal flaps requires careful clinical analysis (microprobe fixation, anatomy and choice of flap).

  12. Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display monitors

    OpenAIRE

    Karina Carbonari; Luciane Gonçalves; Daniela Roth; Patrick Moreira; Ricardo Fernández; Maria da Graça Martino-Roth

    2005-01-01

    It is well recognized that electromagnetic fields can affect the biological functions of living organisms at both cellular and molecular level. The potential damaging effects of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube video display monitors (VDMs) has become a concern within the scientific community. We studied the effects of occupational exposure to VDMs in 10 males and 10 females occupationally exposed to VDMs ...

  13. Video-atlas on minimally invasive mitral valve surgery-The David Adams technique.

    Science.gov (United States)

    Castillo, Javier G; Milla, Federico; Anyanwu, Anelechi C; Adams, David H

    2013-11-01

    Median sternotomy has unquestionably evolved over recent decades. Modern sternotomy involves a 7-8 cm lower midline skin incision, tunneling of the subcutaneous tissues with subsequent creation of myocutaneous flaps, full sternotomy, and standard cardiopulmonary bypass techniques with central cannulation. In experienced centers, modern sternotomy may achieve all the goals of minimally invasive surgery, including excellent cosmesis, excellent postoperative pain control, low rates of bleeding and transfusion (our re-exploration rate for bleeding is <1%), and the ability to perform any reconstructive technique that would be used in a standard sternotomy, with very high repair rates (our most recent series documented a repair rate exceeding 99% in an all-comers population of degenerative disease regardless of complexity).

  14. 38例胸腔镜手术患者单肺通气的麻醉体会%Experience in anesthesia of 38 patients undergoing video-assisted thoracic surgery with one-lung ventilation

    Institute of Scientific and Technical Information of China (English)

    俞学锋; 胡四毛; 陆小龙; 王盘如

    2012-01-01

    目的 探讨电视胸腔镜手术时患者呼吸的管理及麻醉处理.方法 对38例电视胸腔镜手术的患者临床资料进行回顾性分析,麻醉诱导时采用双腔气管插管,术中行单肺通气.结果 单肺通气时一过性低氧血症(SpO2<90%)8例,通过调整呼吸参数,改吸入纯氧等措施,SpO2逐渐回升至正常.手术均顺利完成,无麻醉意外及围手术期死亡.结论 胸腔镜手术的麻醉处理关键是双腔支气管插管位置准确,确保双肺分隔,加强围术期呼吸循环监测,避免低氧血症,为胸腔镜手术创造良好的条件.%Objective To discuss the influence factors on respiratory management for patients undergoing video - assisted thoraco-scopic surgery and related anesthesia management. Methods Clinical data with 38 patients received video - assisted thoracoscopic surgery ventilated by double - lumen tube intubation were retrospectively analysed. Results Transient hypoxemia happened in 8 cases during single lung ventilation ( SpO2 <90% ). By adjusting respiratory parameters and oxygen inhalation, SpO2 could be improved and the value achieved above 96%. There were 3 cases of ventricular premature beats, but they all recovered after treatment. All operations were successfully performed without anesthesia and perioperation death. Conclusion The accuracy of the location of double lumen endobronchial intubation is the key of anesthesia treatment with video - assisted thoracoscopic surgery, which ensures double lung separation. The perioperative respiratory and circulatory monitoring should be strengthened, and hypoxemia should be prevented for creating good conditions for video - assisted thoracoscopic surgery.

  15. Time distribution of epileptic seizures during video-EEG monitoring. Implications for health insurance systems in developing countries.

    Science.gov (United States)

    Quiroga, R C; Pirra, L; Podestá, C; Leiguarda, R C; Rabinowicz, A L

    1997-12-01

    An attempt was made to identify guidelines to help establish epilepsy monitoring units in developing countries. We assessed the time distribution of seizures during video-EEG monitoring and we also estimated the minimum time required for such a procedure and the impact of these variables upon the health insurance system. Mean time for recording five stereotyped clinical events was 72 hours, with a significant number of events recorded between midnight and 0600 hours (P < 0.05). This pilot study may help to establish local policies that will warrant an adequate work-up for our patients.

  16. Efficiency Analysis of Direct Video-Assisted Thoracoscopic Surgery in Elderly Patients with Blunt Traumatic Hemothorax without an Initial Thoracostomy.

    Science.gov (United States)

    Huang, Wen-Yen; Lu, I-Yin; Yang, Chyan; Chou, Yi-Pin; Lin, Hsing-Lin

    2016-01-01

    Hemothorax is common in elderly patients following blunt chest trauma. Traditionally, tube thoracostomy is the first choice for managing this complication. The goal of this study was to determine the benefits of this approach in elderly patients with and without an initial tube thoracostomy. Seventy-eight patients aged >65 years with blunt chest trauma and stable vital signs were included. All of them had more than 300 mL of hemothorax, indicating that a tube thoracostomy was necessary. The basic demographic data and clinical outcomes of patients with hemothorax who underwent direct video-assisted thoracoscopic surgery without a tube thoracostomy were compared with those who received an initial tube thoracostomy. Patients who did not receive a thoracostomy had lower posttrauma infection rates (28.6% versus 56.3%, P = 0.061) and a significantly shorter length of stay in the intensive care unit (3.13 versus 8.27, P = 0.029) and in the hospital (15.93 versus 23.17, P = 0.01) compared with those who received a thoracostomy. The clinical outcomes in the patients who received direct VATS were more favorable compared with those of the patients who did not receive direct VATS.

  17. Efficiency Analysis of Direct Video-Assisted Thoracoscopic Surgery in Elderly Patients with Blunt Traumatic Hemothorax without an Initial Thoracostomy

    Directory of Open Access Journals (Sweden)

    Wen-Yen Huang

    2016-01-01

    Full Text Available Hemothorax is common in elderly patients following blunt chest trauma. Traditionally, tube thoracostomy is the first choice for managing this complication. The goal of this study was to determine the benefits of this approach in elderly patients with and without an initial tube thoracostomy. Seventy-eight patients aged >65 years with blunt chest trauma and stable vital signs were included. All of them had more than 300 mL of hemothorax, indicating that a tube thoracostomy was necessary. The basic demographic data and clinical outcomes of patients with hemothorax who underwent direct video-assisted thoracoscopic surgery without a tube thoracostomy were compared with those who received an initial tube thoracostomy. Patients who did not receive a thoracostomy had lower posttrauma infection rates (28.6% versus 56.3%, P=0.061 and a significantly shorter length of stay in the intensive care unit (3.13 versus 8.27, P=0.029 and in the hospital (15.93 versus 23.17, P=0.01 compared with those who received a thoracostomy. The clinical outcomes in the patients who received direct VATS were more favorable compared with those of the patients who did not receive direct VATS.

  18. Left upper lobectomy and systematic lymph nodes dissection in enlarged pulmonary hilar lymph nodes in primary lung cancer patient by uniportal video-assisted thoracic surgery.

    Science.gov (United States)

    Fan, Jun-Qiang; Yao, Jie; Chang, Zhi-Bo; Wang, Qi

    2016-08-01

    Uniportal video-assisted thoracic surgery (VATS) anatomical pulmonary resection, with only one small incision for surgery instruments and camera insertion, requires higher operative skills, especially in the cases of the enlarged pulmonary hilar lymph nodes. With improved technology and increased experiences in VATS lobectomy, uniportal VATS lobectomy has been applied in major medical centers recently. A 67-year-old male patient with left upper peripheral lung cancer and enlarged hilar lymph nodes underwent unipotal VATS lobectomy and systemic mediastinal lymph node dissection. The patient recovered uneventfully.

  19. Development of video-assisted breast cancer surgery: Initial experience with a novel method for creating working space without prior liposuction.

    Science.gov (United States)

    Wu, Qian-Fu; Yu, Ying-Hua; Zhu, Xiao; Cui, Ying; Mo, Qin-Guo; Wei, Chang-Yuan; Lin, Xue-Juan; Liu, Xue-Ying; Xie, Wei-Kang; Gan, Shui; Lei, Wei

    2017-07-01

    Endoscopic techniques are promising in breast surgery. In order to create working space, liposuction is widely used in video-assisted breast surgery (VABS). However, the use of liposuction is likely associated with side effects that may partly limit the application of VABS. Therefore, a new technique of endoscopic axillary lymphadenectomy without prior liposuction was developed by our group. A total of 106 female patients underwent VABS, with special adaptation of the video-assisted surgical procedures previously described. Differing from other endoscopic surgery techniques, our adaptations of VABS included the selection of the working instruments, trocar placement, creation of working space, order of axillary lymph node dissection and method of mastectomy. The operative time was 50-180 min (mean, 85.5 min). The intraoperative blood loss ranged from 20 to 100 ml (mean, 48 ml). The mean lymph node number harvested was 11.5 (range, 6-31). No serious intra- or postoperative complications were recorded. There was no axillary tumor relapse, trocar site tumor implantation or upper limb edema. Without prior liposuction, our new technique of VABS reduced the blood loss volume, endoscopic surgery time, total volume of drainage fluid and, most importantly, the risk of port-site metastases. This new technique appears to have great clinical potential and good prospects for future endoscopic breast surgery development.

  20. Use of a preanesthetic video for facilitation of parental education and anxiolysis before pediatric ambulatory surgery.

    Science.gov (United States)

    Cassady, J F; Wysocki, T T; Miller, K M; Cancel, D D; Izenberg, N

    1999-02-01

    In this study, we evaluated the effects of viewing an educational videotape about pediatric anesthesia on measures of parental knowledge of anesthesia and preoperative anxiety using a randomized, controlled design. During their routine preoperative visit, 85 parents of children scheduled to undergo ambulatory surgical procedures under general anesthesia were randomized to view either the experimental videotape about pediatric anesthesia or a control videotape with no medical content. Before and immediately after viewing the assigned videotape, parents completed measures of situational anxiety (State-Trait Anxiety Inventory-State), preoperative anxiety and need for information (Amsterdam Preoperative Anxiety and Information Scale), and anesthesia knowledge (Standard Anesthesia Learning Test). Repeated-measures analyses of variance showed that parents who viewed the experimental videotape showed a significant increase in anesthesia knowledge (P anxiety (P anxiety, and need for information (P preoperative educational videotape about pediatric anesthesia can provide immediate educational and anxiolytic benefits for parents of children undergoing ambulatory surgery. The duration of these benefits remains to be determined. In this study, we demonstrated the benefits of viewing an educational videotape about pediatric anesthesia on measures of parental knowledge of anesthesia and preoperative anxiety using a randomized, controlled design. We found that videotape viewing facilitated preoperative preparation and lessened preoperative anxiety.

  1. Contact lenses fitting teaching: learning improvement with monitor visualization of webcam video recordings

    Science.gov (United States)

    Gargallo, Ana; Arines, Justo

    2014-08-01

    We have adapted low cost webcams to the slit lamps objectives with the aim of improving contact lens fitting practice. With this solution we obtain good quality pictures and videos, we also recorded videos of eye examination, evaluation routines of contact lens fitting, and the final practice exam of our students. In addition, the video system increases the interactions between students because they could see what their colleagues are doing and take conscious of their mistakes, helping and correcting each others. We think that the proposed system is a low cost solution for supporting the training in contact lens fitting practice.

  2. Post site metastasis of breast cancer after video-assisted thoracic surgery for pulmonary metastasis of breast cancer: A case report

    Energy Technology Data Exchange (ETDEWEB)

    Park, Mee Hyun; Hwang, Ji Young; Hyun, Su Jeong; Lee, Yul; Woo, Ji Young; Yang, Ik; Hong, Hye Sook; Kim, Han Myun [Dept. of Radiology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul (Korea, Republic of)

    2016-05-15

    We reported a case of port site metastasis in a 57-year-old patient who underwent video-assisted thoracic surgery (VATS) resection of pulmonary metastasis from breast cancer. Port site metastasis after VATS is very rare in patients with breast cancer. However, when suspicious lesions are detected near the port site in patients who have undergone VATS for pulmonary metastasis, port site metastasis should be considered in the differential diagnosis.

  3. Monitoring Cerebral and Renal Oxygenation Status during Neonatal Digestive Surgeries Using Near Infrared Spectroscopy

    Directory of Open Access Journals (Sweden)

    Jonathan Beck

    2017-06-01

    Full Text Available BackgroundDepending on the initial pathology, hypovolemia, intra-abdominal hypertension, and sepsis are often encountered in neonatal digestive surgery. Accurate newborn monitoring during and after surgery is essential to adapt resuscitation protocols. Near infrared spectroscopy (NIRS is non-invasive and can detect hypoperfusion which indicates a low circulatory blood flow, regardless of the cause.ObjectiveEvaluating changes in cerebral and renal regional oxygen saturation during neonatal digestive surgeries, conducted according to normal practices, with commonly used monitoring parameters. Analyzing retrospectively the inter-relationships between NIRS values and mean arterial pressure (MAP values as well as pre-ductal SpO2.MethodsProspective, descriptive, monocentric study. All neonates referred for surgery were included. NIRS allows the measurement of cerebral and renal oxygenation fluctuations, as well as calculating difference in intraoperative and postoperative values.ResultsNineteen patients were included. Cerebral regional oxygen saturation (C rSO2 values were stable while renal regional oxygen saturation (R rSO2 values tended to decrease with time during surgery. Indeed, 72% of rSO2 decline episodes occurred after the first 30 min of surgery, without any significant statistical differences for the next 90 min of surgery. After surgery, the lowest average C and R rSO2 values were evidenced during the first 6 h, with 60% of C rSO2 and R rSO2 anomalies occurring in that time frame. There was no significant statistical difference observed in the following 18 h. There was a significant correlation between R rSO2 and SpO2 values (p < 0.01, but not with C rSO2 values. There was no correlation with the MAP either for the C rSO2 values or R rSO2 ones.ConclusionNIRS is a promising non-invasive bedside tool to monitor cerebral and tissue perfusion, analyzing tissue microcirculation. NIRS has its interest to guide neonatal digestive

  4. Experience of monitoring the recurrent laryngeal nerve in thyroid surgery with endotracheal intubation

    Directory of Open Access Journals (Sweden)

    Liang Feng

    2017-01-01

    Full Text Available Purpose:To analysis clinical experience of applying recurrent laryngeal monitoring endotracheal tube (NIM EMG Endotracheal Tube in the surgery of thyroid. Method: A retrospective analysis of 84 patients who underwent endotracheal intubation laryngeal nerve monitoring by thyroid surgery in the Chinese-Japanese Friendship Hospital of Jilin University from March to December in 2015. To summarize the experience of intubation with NIM EMG Endotracheal Tube. Result 77 (91.7%had initial intubation achievement in the 84 patients.FROM the 77 cases we had gotten s atisfactory nerve monitoring signal.Whereas there are 7 cases (8.3% appear abnormal EMG or signal missing, in the 7 cases there is one which being intubated too deep, 3 cases which being intubated too shallow and 3 cases with malrotation intubation.Conclusion: We got the satisfactory signals after adjust1ing the tube by using the visual laryngoscope.

  5. Awareness during anaesthesia for surgery requiring evoked potential monitoring: A pilot study

    Directory of Open Access Journals (Sweden)

    Pritish J Korula

    2017-01-01

    Full Text Available Background: Evoked potential monitoring such as somatosensory-evoked potential (SSEP or motor-evoked potential (MEP monitoring during surgical procedures in proximity to the spinal cord requires minimising the minimum alveolar concentrations (MACs below the anaesthetic concentrations normally required (1 MAC to prevent interference in amplitude and latency of evoked potentials. This could result in awareness. Our primary objective was to determine the incidence of awareness while administering low MAC inhalational anaesthetics for these unique procedures. The secondary objective was to assess the adequacy of our anaesthetic technique from neurophysiologist′s perspective. Methods: In this prospective observational pilot study, 61 American Society of Anesthesiologists 1 and 2 patients undergoing spinal surgery for whom intraoperative evoked potential monitoring was performed were included; during the maintenance phase, 0.7-0.8 MAC of isoflurane was targeted. We evaluated the intraoperative depth of anaesthesia using a bispectral (BIS index monitor as well as the patients response to surgical stimulus (PRST scoring system. Post-operatively, a modified Bruce questionnaire was used to verify awareness. The adequacy of evoked potential readings was also assessed. Results: Of the 61 patients, no patient had explicit awareness. Intraoperatively, 19 of 61 patients had a BIS value of above sixty at least once, during surgery. There was no correlation with PRST scoring and BIS during surgery. Fifty-four out of 61 patient′s evoked potential readings were deemed ′good′ or ′fair′ for the conduct of electrophysiological monitoring. Conclusions: This pilot study demonstrates that administering low MAC inhalational anaesthetics to facilitate evoked potential monitoring does not result in explicit awareness. However, larger studies are needed to verify this. The conduct of SSEP electrophysiological monitoring was satisfactory with the use of this

  6. An Innovative Streaming Video System With a Point-of-View Head Camera Transmission of Surgeries to Smartphones and Tablets: An Educational Utility.

    Science.gov (United States)

    Chaves, Rafael Oliveira; de Oliveira, Pedro Armando Valente; Rocha, Luciano Chaves; David, Joacy Pedro Franco; Ferreira, Sanmari Costa; Santos, Alex de Assis Santos Dos; Melo, Rômulo Müller Dos Santos; Yasojima, Edson Yuzur; Brito, Marcus Vinicius Henriques

    2017-10-01

    In order to engage medical students and residents from public health centers to utilize the telemedicine features of surgery on their own smartphones and tablets as an educational tool, an innovative streaming system was developed with the purpose of streaming live footage from open surgeries to smartphones and tablets, allowing the visualization of the surgical field from the surgeon's perspective. The current study aims to describe the results of an evaluation on level 1 of Kirkpatrick's Model for Evaluation of the streaming system usage during gynecological surgeries, based on the perception of medical students and gynecology residents. Consisted of a live video streaming (from the surgeon's point of view) of gynecological surgeries for smartphones and tablets, one for each volunteer. The volunteers were able to connect to the local wireless network, created by the streaming system, through an access password and watch the video transmission on a web browser on their smartphones. Then, they answered a Likert-type questionnaire containing 14 items about the educational applicability of the streaming system, as well as comparing it to watching an in loco procedure. This study is formally approved by the local ethics commission (Certificate No. 53175915.7.0000.5171/2016). Twenty-one volunteers participated, totalizing 294 items answered, in which 94.2% were in agreement with the items affirmative, 4.1% were neutral, and only 1.7% answers corresponded to negative impressions. Cronbach's α was .82, which represents a good reliability level. Spearman's coefficients were highly significant in 4 comparisons and moderately significant in the other 20 comparisons. This study presents a local streaming video system of live surgeries to smartphones and tablets and shows its educational utility, low cost, and simple usage, which offers convenience and satisfactory image resolution, thus being potentially applicable in surgical teaching.

  7. Post-Surgical Clinical Monitoring of Soft Tissue Wound Healing in Periodontal and Implant Surgery.

    Science.gov (United States)

    Pippi, Roberto

    2017-01-01

    Clinical features of surgical soft tissue wound healing in dentistry have been rarely discussed in the international literature. The aim of the present paper is to highlight both the main clinical findings of surgical wound healing, especially in periodontal and implant dentistry, and the wound healing monitoring procedures which should be followed. Wound inspection after careful food and plaque debridement is the essential part of wound healing monitoring. Periodontal and peri-implant probing should be performed only after tissue healing has been completed and not on a weekly basis in peri-implant tissue monitoring. Telephone follow-up and patient self-assessment scales can also be used the days following surgery to monitor the most common surgical complications such as pain, swelling, bleeding, and bruising. Wound healing monitoring is an important concern in all surgical procedures since it allows to identify signs or/and symptoms possibly related to surgical complications.

  8. A miniaturized video system for monitoring the locomotor activity of walking Drosophila melanogaster in space and terrestrial settings.

    Science.gov (United States)

    Inan, Omer T; Etemadi, Mozziyar; Sanchez, Max E; Marcu, Oana; Bhattacharya, Sharmila; Kovacs, Gregory T A

    2009-02-01

    A novel method is presented for monitoring movement of Drosophila melanogaster (the fruit fly) in space. Transient fly movements were captured by a $60, 2.5-cm-cubed monochrome video camera imaging flies illuminated by a uniform light source. The video signal from this camera was bandpass filtered (0.3-10 Hz) and amplified by an analog circuit to extract the average light changes as a function of time. The raw activity signal output of this circuit was recorded on a computer and digitally processed to extract the fly movement "events" from the waveform. These events corresponded to flies entering and leaving the image and were used for extracting activity parameters such as interevent duration. The efficacy of the system in quantifying locomotor activity was evaluated by varying environmental temperature and measuring the activity level of the flies. The results of this experiment matched those reported in the literature.

  9. Monitoring the gingival regeneration after aesthetic surgery with optical coherence tomography

    Science.gov (United States)

    Fernandes, Luana O.; Graça, Natalia D. R. L.; Melo, Luciana S. A.; Silva, Claudio H. V.; Gomes, Anderson S. L.

    2016-02-01

    The aim of this study was to use the Optical Coherence Tomography (OCT) technique working in spectral domain (Swept Source OCT at 1325 nm, Thorlabs, New Jersey, USA) to monitor the tissue repair in patients undergoing periodontal plastic surgery. The evaluations were done over a period of 60 days. It was observed that 15 days after periodontal surgery the gum was still in different healing process as compared to the observation after 60 days. Thus it is clear that, despite some technical limitations, the OCT is an efficient method in the evaluation of regeneration gingival.

  10. Peri-operative imaging of cancer margins with reflectance confocal microscopy during Mohs micrographic surgery: feasibility of a video-mosaicing algorithm

    Science.gov (United States)

    Flores, Eileen; Yelamos, Oriol; Cordova, Miguel; Kose, Kivanc; Phillips, William; Rossi, Anthony; Nehal, Kishwer; Rajadhyaksha, Milind

    2017-02-01

    Reflectance confocal microscopy (RCM) imaging shows promise for guiding surgical treatment of skin cancers. Recent technological advancements such as the introduction of the handheld version of the reflectance confocal microscope, video acquisition and video-mosaicing have improved RCM as an emerging tool to evaluate cancer margins during routine surgical skin procedures such as Mohs micrographic surgery (MMS). Detection of residual non-melanoma skin cancer (NMSC) tumor during MMS is feasible, as demonstrated by the introduction of real-time perioperative imaging on patients in the surgical setting. Our study is currently testing the feasibility of a new mosaicing algorithm for perioperative RCM imaging of NMSC cancer margins on patients during MMS. We report progress toward imaging and image analysis on forty-five patients, who presented for MMS at the MSKCC Dermatology service. The first 10 patients were used as a training set to establish an RCM imaging algorithm, which was implemented on the remaining test set of 35 patients. RCM imaging, using 35% AlCl3 for nuclear contrast, was performed pre- and intra-operatively with the Vivascope 3000 (Caliber ID). Imaging was performed in quadrants in the wound, to simulate the Mohs surgeon's examination of pathology. Videos were taken at the epidermal and deep dermal margins. Our Mohs surgeons assessed all videos and video-mosaics for quality and correlation to histology. Overall, our RCM video-mosaicing algorithm is feasible. RCM videos and video-mosaics of the epidermal and dermal margins were found to be of clinically acceptable quality. Assessment of cancer margins was affected by type of NMSC, size and location. Among the test set of 35 patients, 83% showed acceptable imaging quality, resolution and contrast. Visualization of nuclear and cellular morphology of residual BCC/SCC tumor and normal skin features could be detected in the peripheral and deep dermal margins. We observed correlation between the RCM videos/video

  11. [Monitoring of intra-abdominal pressure and abdominal perfusion pressure in urgent abdominal surgery].

    Science.gov (United States)

    Raĭbuzhis, E N; Fot, E V; Gaĭdukov, K M; Kirov, M Iu

    2014-01-01

    To evaluate the changes in intra-abdominal pressure (IAP) and abdominal perfusion pressure (APP) during perioperative period in urgent abdominal surgery and to assess the relationship of these parameters with gas exchange and tissue perfusion. Twenty-four patients undergoing emergency abdominal surgery were enrolled into a prospective observational study. We recorded IAP APP, mean arterial pressure, arterial and venous blood gases after induction of anesthesia, at the end of surgery, and 6, 12, 48 and 72 h postoperatively. LAP was measured by nasogastric tube using CiMON monitor (Pulsion Medical Systems, Germany). In addition, we studied the relationship of IAP and APP with blood gases parameters. We observed perioperative increase of IAP (> 12 mm Hg) in 75% of enrolled patients, tendency to postoperative rise of IAP and transient increase of arterial lactate at 6 h after surgery. APP remained within normal values. We found positive correlation of APP with PaO2/FiO2 and ScvO2 at 72 hours after surgery. Transient perioperative increase of IAP was observed in 75% patients undergoing urgent abdominal surgery; however in parallel with intensive care the abdominal perfusion pressure remained within normal values. Abdominal perfusion is related with arterial oxygenation and central venous saturation.

  12. CT-Guided Percutaneous Transthoracic Localization of Pulmonary Nodules Prior to Video-Assisted Thoracoscopic Surgery Using Barium Suspension

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Nyoung Keun; Park, Chang Min; Kang, Chang Hyun; Jeon, Yoon Kyung; Choo, Ji Yung; Lee, Hyun Ju; Goo, Jin Mo [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    2012-11-15

    To describe our initial experience with CT-guided percutaneous barium marking for the localization of small pulmonary nodules prior to video-assisted thoracoscopic surgery (VATS). From October 2010 to April 2011, 10 consecutive patients (4 men and 6 women; mean age, 60 years) underwent CT-guided percutaneous barium marking for the localization of 10 small pulmonary nodules (mean size, 7.6 mm; range, 3-14 mm): 6 pure ground-glass nodules, 3 part-solid nodules, and 1 solid nodule. A 140% barium sulfate suspension (mean amount, 0.2 mL; range, 0.15-0.25 mL) was injected around the nodules with a 21-gauge needle. The technical details, surgical findings and pathologic features associated with barium localizations were evaluated. All nodules were marked within 3 mm (mean distance, 1.1 mm; range, 0-3 mm) from the barium ball (mean diameter, 9.6 mm; range, 8-16 mm) formed by the injected barium suspension. Pneumothorax occurred in two cases, for which one needed aspiration. However, there were no other complications. All barium balls were palpable during VATS and visible on intraoperative fluoroscopy, and were completely resected. Both the whitish barium balls and target nodules were identifiable in the frozen specimens. Pathology revealed one invasive adenocarcinoma, five adenocarcinoma-in-situ, two atypical adenomatous hyperplasias, and two benign lesions. In all cases, there were acute inflammations around the barium balls which did not hamper the histological diagnosis of the nodules. CT-guided percutaneous barium marking can be an effective, convenient and safe pre-operative localization procedure prior to VATS, enabling accurate resection and diagnosis of small or faint pulmonary nodules.

  13. Postoperative pain and quality of life after lobectomy via video-assisted thoracoscopic surgery or anterolateral thoracotomy for early stage lung cancer

    DEFF Research Database (Denmark)

    Bendixen, Morten; Jørgensen, Ole Dan; Kronborg, Christian

    2016-01-01

    (1:1) to lobectomy via four-port VATS or anterolateral thoracotomy. After surgery, we applied identical surgical dressings to ensure masking of patients and staff. Postoperative pain was measured with a numeric rating scale (NRS) six times per day during hospital stay and once at 2, 4, 8, 12, 26...... died during the follow-up period (three in the VATS group and six in the thoracotomy group). INTERPRETATION: VATS is associated with less postoperative pain and better quality of life than is anterolateral thoracotomy for the first year after surgery, suggesting that VATS should be the preferred......BACKGROUND: Video-assisted thoracoscopic surgery (VATS) is used increasingly as an alternative to thoracotomy for lobectomy in the treatment of early-stage non-small-cell lung cancer, but remains controversial and worldwide adoption rates are low. Non-randomised studies have suggested that VATS...

  14. Video Analysis of Factors Associated With Response Time to Physiologic Monitor Alarms in a Children's Hospital.

    Science.gov (United States)

    Bonafide, Christopher P; Localio, A Russell; Holmes, John H; Nadkarni, Vinay M; Stemler, Shannon; MacMurchy, Matthew; Zander, Miriam; Roberts, Kathryn E; Lin, Richard; Keren, Ron

    2017-06-01

    Bedside monitor alarms alert nurses to life-threatening physiologic changes among patients, but the response times of nurses are slow. To identify factors associated with physiologic monitor alarm response time. This prospective cohort study used 551 hours of video-recorded care administered by 38 nurses to 100 children in a children's hospital medical unit between July 22, 2014, and November 11, 2015. Patient, nurse, and alarm-level factors hypothesized to predict response time. We used multivariable accelerated failure-time models stratified by each nurse and adjusted for clustering within patients to evaluate associations between exposures and response time to alarms that occurred while the nurse was outside the room. The study participants included 38 nurses, 100% (n = 38) of whom were white and 92% (n = 35) of whom were female, and 100 children, 51% (n = 51) of whom were male. The race/ethnicity of the child participants was 45% (n = 45) black or African American, 33% (n = 33) white, 4% (n = 4) Asian, and 18% (n = 18) other. Of 11 745 alarms among 100 children, 50 (0.5%) were actionable. The adjusted median response time among nurses was 10.4 minutes (95% CI, 5.0-15.8) and varied based on the following variables: if the patient was on complex care service (5.3 minutes [95% CI, 1.4-9.3] vs 11.1 minutes [95% CI, 5.6-16.6] among general pediatrics patients), whether family members were absent from the patient's bedside (6.3 minutes [95% CI, 2.2-10.4] vs 11.7 minutes [95% CI, 5.9-17.4] when family present), whether a nurse had less than 1 year of experience (4.4 minutes [95% CI, 3.4-5.5] vs 8.8 minutes [95% CI, 7.2-10.5] for nurses with 1 or more years of experience), if there was a 1 to 1 nursing assignment (3.5 minutes [95% CI, 1.3-5.7] vs 10.6 minutes [95% CI, 5.3-16.0] for nurses caring for 2 or more patients), if there were prior alarms requiring intervention (5.5 minutes [95% CI, 1.5-9.5] vs 10.7 minutes [5.2-16.2] for patients

  15. Incidence and localizing value of vertigo and dizziness in patients with epilepsy: Video-EEG monitoring study.

    Science.gov (United States)

    Kim, Dong Wook; Sunwoo, Jun-Sang; Lee, Sang Kun

    2016-10-01

    Vertigo and dizziness are common neurological complaints that have long been associated with epilepsy. However, studies of patients with epileptic vertigo or dizziness with concurrent EEG monitoring are scarce. We performed the present study to investigate the incidence and localizing value of vertigo and dizziness in patients with epilepsy who had confirmation of EEG changes via video-EEG monitoring. Data of aura and clinical seizure episodes of 831 consecutive patients who underwent video-EEG monitoring were analyzed retrospectively. Out of 831 patients, 40 patients (4.8%) experienced vertigo or dizziness as aura (mean age, 32.8±11.8years), all of whom had partial seizures. Eight had mesial temporal, 20 had lateral temporal, four had frontal, one had parietal, and seven had occipital lobe onset seizures. An intracranial EEG with cortical stimulation study was performed in seven patients, and the area of stimulation-induced vertigo or dizziness coincided with the ictal onset area in only one patient. Our study showed that vertigo or dizziness is a common aura in patients with epilepsy, and that the temporal lobe is the most frequent ictal onset area in these patients. However, it can be suggested that the symptomatogenic area in patients with epileptic vertigo and dizziness may not coincide with the ictal onset area.

  16. Video assisted thoracic surgery. Experiences in Dr. Gustavo Aldereguia Lima hospital. Cirugía torácica asistida por video. Experiencias en el Hospital “Dr. Gustavo Aldereguía Lima”.

    Directory of Open Access Journals (Sweden)

    Francisco Cabarroca Castillo

    2008-04-01

    Full Text Available Background: Video assisted thoracic surgery is an intervention which advantages should be reaffirmed through studies aimed to characterize and describe it, based on real experiences. Objective: To verify the efficacy of this kind of surgery in the department of minimal access surgery in the university hospital Dr. Gustavo Aldereguia Lima. Methods: Descriptive, retrospective study of 135 patients operated through video assisted thoracic surgery in the university hospital in Cienfuegos during a period of seven years (1998-2005. The analyzed variables were: disease that determined the intervention, goals, of the intervention, complications and post-operatory period. Results: The most frequent causes of intervention were pneumothorax, pulmonary tumors, pleural effusion and empyema. There was high accordance between pre and pos operatory diagnosis. There was a prevalence of therapeutic surgeries (55 %, over diagnostic surgeries. The pos-operatory period in the Surgery Department was less than seven days in most of the cases. Conclusion: The study’s results show that the use of this technique has a positive impact on the economic and social indicators of the province.

    Fundamento: La cirugía torácica asistida por video es un proceder cuyas ventajas deben ser reafirmadas a través de estudios que la caractericen y la describan, partiendo de experiencias reales. Objetivo: Comprobar la eficacia de la cirugía asistida por video en el Servicio de Cirugía de mínimo acceso del Hospital Universitario “Dr. Gustavo Aldereguía Lima¨. Métodos: Estudio descriptivo y retrospectivo de 135 pacientes operados mediante cirugía torácica asistida por video, en el hospital universitario “Dr. Gustavo Aldereguía Lima” de Cienfuegos, en un período de 7 años (1998-2005. Las variables del estudio fueron: enfermedad que

  17. Cardiac surgery during pregnancy: Continuous fetal monitoring using umbilical artery Doppler flow velocity indices

    Directory of Open Access Journals (Sweden)

    Manisha Mishra

    2014-01-01

    Full Text Available The fetal death rate associated with cardiac surgery with cardiopulmonary bypass (CPB is as high as 9.5-29%. We report continuous monitoring of fetal heart rate and umbilical artery flow-velocity waveforms by transvaginal ultrasonography and their analyses in relation to events of the CPB in two cases in second trimester of pregnancy undergoing mitral valve replacement. Our findings suggest that the transition of circulation from corporeal to extracorporeal is the most important event during surgery; the associated decrease in mean arterial pressure (MAP at this stage potentially has deleterious effects on the fetus, which get aggravated with the use of vasopressors. We suggest careful management of CPB at this stage, which include partial controlled CPB at initiation and gradual transition to full CPB; this strategy maintains high MAP and avoids the use of vasopressors. Maternal and fetal monitoring can timely recognize the potential problems and provide window for the required treatment.

  18. Cerebral oxygenation monitoring in patients with bilateral carotid stenosis undergoing urgent cardiac surgery: Observational case series

    Directory of Open Access Journals (Sweden)

    Dincer Aktuerk

    2016-01-01

    Full Text Available Background: Patients with significant bilateral carotid artery stenosis requiring urgent cardiac surgery have an increased risk of stroke and death. The optimal management strategy remains inconclusive, and the available evidence does not support the superiority of one strategy over another. Materials and Methods: A number of noninvasive strategies have been developed for minimizing perioperative stroke including continuous real-time monitoring of cerebral oxygenation with near-infrared spectroscopy (NIRS. The number of patients presenting with this combination (bilateral significant carotid stenosis requiring urgent cardiac surgery in any single institution will be small and hence there is a lack of large randomized studies. Results: This case series describes our early experience with NIRS in a select group of patients with significant bilateral carotid stenosis undergoing urgent cardiac surgery (n = 8. In contrast to other studies, this series is a single surgeon, single center study, where the entire surgery (both distal ends and proximal ends was performed during single aortic clamp technique, which effectively removes several confounding variables. NIRS monitoring led to the early recognition of decreased cerebral oxygenation, and corrective steps (increased cardiopulmonary bypass flow, increased pCO 2 , etc., were taken. Conclusion: The study shows good clinical outcome with the use of NIRS. This is our "work in progress," and we aim to conduct a larger study.

  19. Motion-based video monitoring for early detection of livestock diseases: The case of African swine fever.

    Science.gov (United States)

    Fernández-Carrión, Eduardo; Martínez-Avilés, Marta; Ivorra, Benjamin; Martínez-López, Beatriz; Ramos, Ángel Manuel; Sánchez-Vizcaíno, José Manuel

    2017-01-01

    Early detection of infectious diseases can substantially reduce the health and economic impacts on livestock production. Here we describe a system for monitoring animal activity based on video and data processing techniques, in order to detect slowdown and weakening due to infection with African swine fever (ASF), one of the most significant threats to the pig industry. The system classifies and quantifies motion-based animal behaviour and daily activity in video sequences, allowing automated and non-intrusive surveillance in real-time. The aim of this system is to evaluate significant changes in animals' motion after being experimentally infected with ASF virus. Indeed, pig mobility declined progressively and fell significantly below pre-infection levels starting at four days after infection at a confidence level of 95%. Furthermore, daily motion decreased in infected animals by approximately 10% before the detection of the disease by clinical signs. These results show the promise of video processing techniques for real-time early detection of livestock infectious diseases.

  20. The effects of video compression on acceptability of images for monitoring life sciences' experiments

    Science.gov (United States)

    Haines, Richard F.; Chuang, Sherry L.

    1993-01-01

    Current plans indicate that there will be a large number of life science experiments carried out during the thirty year-long mission of the Biological Flight Research Laboratory (BFRL) on board Space Station Freedom (SSF). Non-human life science experiments will be performed in the BFRL. Two distinct types of activities have already been identified for this facility: (1) collect, store, distribute, analyze and manage engineering and science data from the Habitats, Glovebox and Centrifuge, (2) perform a broad range of remote science activities in the Glovebox and Habitat chambers in conjunction with the remotely located principal investigator (PI). These activities require extensive video coverage, viewing and/or recording and distribution to video displays on board SSF and to the ground. This paper concentrates mainly on the second type of activity. Each of the two BFRL habitat racks are designed to be configurable for either six rodent habitats per rack, four plant habitats per rack, or a combination of the above. Two video cameras will be installed in each habitat with a spare attachment for a third camera when needed. Therefore, a video system that can accommodate up to 12-18 camera inputs per habitat rack must be considered.

  1. THE APPLICATION OF CORTICAL SOMATOSENSORY EVOKED POTENTIAL MONITORING IN CHILD SCOLIOSIS SURGERY

    Institute of Scientific and Technical Information of China (English)

    白斌; 王坤正; 同志勤; 刘文科; 宋金辉; 袁国莲

    2003-01-01

    Objective To study the application value of cortical somatosensory evoked potential (CSEP) monitoring in child scoliosis surgery. Methods In surgeries of fifty-one children with scoliosis, the CSEP changes were continuously recorded by evoked potential instrument. The operations were performed under the guidance of CSEP monitoring. Results Before propping and reshaping, the latencies and amplitudes in all cases had no change. During propping and reshaping, the latencies of all cases were slowly elongated, but all less than 10 percent. The amplitudes in 15 cases dropped to 55 percent, but returned to 80 percent 3-8 minutes after stopping the operations or partially loosening the propped rods at once. The amplitude in one case suddenly dropped to 37 percent and returned to 54 percent half an hour after loosening the propped rods at once and recovered to the normal range one day after operation. All cases got ideal orthopedic results and no one had neurological complications post operation. Conclusion CSEP can accurately monitor the spinal injury and has a great value in preventing the spinal injury in child scoliosis surgery.

  2. The feasibility of sugammadex for general anesthesia and facial nerve monitoring in patients undergoing parotid surgery.

    Science.gov (United States)

    Lu, I-Cheng; Chang, Pi-Ying; Su, Miao-Pei; Chen, Po-Nien; Chen, Hsiu-Ya; Chiang, Feng-Yu; Wu, Che-Wei

    2017-08-01

    The use of neuromuscular blocking agent (NMBA) during anesthesia may interfere with facial nerve monitoring (FNM) during parotid surgery. Sugammadex has been reported to be an effective and safe reversal of rocuronium-induced neuromuscular block (NMB) during surgery. This study investigated the feasibility and clinical effectiveness of sugammadex for NMB reversal during FNM in Parotid surgery. Fifty patients undergoing parotid surgery were randomized allocated into conventional anesthesia group (Group C, n = 25) and sugammadex group (Group S, n = 25). Group C did not receive any NMBA. Group S received rocuronium 0.6 mg/kg at anesthesia induction and sugammadex 2 mg/kg at skin incision. The intubating condition and influence on FNM evoked EMG results were compared between groups. The intubation condition showed significantly better in group S patients than C group patients (excellent in 96% v.s. 24%). In group S, rapid reverse of NMB was found and the twitch (%) recovered from 0 to >90% within 10 min. Positive and high EMG signals were obtained in all patients at the time point of initial facial nerve stimulation in both groups. There was no significant difference as comparing the EMG amplitudes detected at the time point of initial and final facial nerve stimulation in both groups. Implementation of sugammadex in anesthesia protocol is feasible and reliable for successful FNM during parotid surgery. Copyright © 2017. Published by Elsevier Taiwan.

  3. Parental influences on adolescent video game play: a study of accessibility, rules, limit setting, monitoring, and cybersafety.

    Science.gov (United States)

    Smith, Lisa J; Gradisar, Michael; King, Daniel L

    2015-05-01

    Adolescents' video gaming is increasing at a rapid rate. Yet, little is known about what factors contribute toward more hours of gaming per week, as well as what factors may limit or protect adolescents from excessive gaming. The aim of the present study was to examine associations between adolescents' accessibility to video gaming devices, the locations played (i.e., bedroom, shared rooms), parental regulation of technology use, and the amount of hours spent video gaming during the week (weekdays vs. weekends). Adolescents (N=422; age 16.3±2.0 years, 41% male) completed an online questionnaire battery, including demographics, video gaming behaviors (e.g., hours played weekdays/weekends, time of day played, devices owned, locations played, etc.), and a questionnaire measuring aspects of parents' regulation of game playing (e.g., rules, limit setting, co-gaming). Accessibility to the adolescents' own devices, but not shared devices or device portability, was predictive of hours gaming on weekdays and weekends. Location (i.e., bedroom) was associated with increased gaming across the week. Parents discussing cybersafety was predictive of lower hours of gaming (weekdays and weekends). However, limit setting, monitoring, and co-gaming showed no significant effects. Adolescents' access to their own gaming equipped devices, as well as gaming in their bedrooms, were linked to increased hours of gaming. The findings suggest that in order to curb the increase in hours gaming, parents are advised to delay the ownership of adolescents' devices, encourage use in shared rooms, and discuss aspects of cybersafety with their teenage children.

  4. A Real-time Video Monitoring System of Mobile Terminals Based on Android Platform: A Case Study of Electric Power Systems

    Directory of Open Access Journals (Sweden)

    Songchun Gong

    2013-03-01

    Full Text Available With the constant improvement of electrical equipment automation level, unattended electric power system node becomes increasingly popular. In addition, because of the ever-increasing industrial demand for electricity, electric power infrastructure becomes larger and larger, equipment and transmission link structure are more and more complex, all kinds of faults emerge one after another and administrative department has more and more urgent demand for electrical inspection personnel in terms of solving problems of various equipments and links. At present, relying on the development of network communication technology, real-time video monitoring system of electric power system is being promoted in a large scale. Real-time video acquisition system of electrical inspection personnel based on mobile terminal will also be applied gradually. A Real-time Video Monitoring System (RVMS of mobile terminals based on Android platform is designed in this study. Through application test of practical environment, the system is able to meet the video data monitoring technique requirements of daily operation and maintenance of electric power system node. Mobile Video Acquisition Terminal (MVAT is able to collect relevant real-time video data in the process of equipment and link faults inspection as well as to provide the video data to remote system maintenance expert, offering data decision to expert in remote real-time solution of equipment failure. All collected video data will be stored in remote system server for establishing a decision database of video information, so as to provide convincing data support for future performance analysis and fault detection of related equipment and link.

  5. Utility of Characterizing and Monitoring Suspected Underground Nuclear Sites with VideoSAR

    Science.gov (United States)

    Dauphin, S. M.; Yocky, D. A.; Riley, R.; Calloway, T. M.; Wahl, D. E.

    2016-12-01

    Sandia National Laboratories proposed using airborne synthetic aperture RADAR (SAR) collected in VideoSAR mode to characterize the Underground Nuclear Explosion Signature Experiment (UNESE) test bed site at the Nevada National Security Site (NNSS). The SNL SAR collected airborne, Ku-band (16.8 GHz center frequency), 0.2032 meter ground resolution over NNSS in August 2014 and X-band (9.6 GHz), 0.1016 meter ground resolution fully-polarimetric SAR in April 2015. This paper reports the findings of processing and exploiting VideoSAR for creating digital elevation maps, detecting cultural artifacts and exploiting full-circle polarimetric signatures. VideoSAR collects a continuous circle of phase history data, therefore, imagery can be formed over the 360-degrees of the site. Since the Ku-band VideoSAR had two antennas suitable for interferometric digital elevation mapping (DEM), DEMs could be generated over numerous aspect angles, filling in holes created by targets with height by imaging from all sides. Also, since the X-band VideoSAR was fully-polarimetric, scattering signatures could be gleaned from all angles also. Both of these collections can be used to find man-made objects and changes in elevation that might indicate testing activities. VideoSAR provides a unique, coherent measure of ground objects allowing one to create accurate DEMS, locate man-made objects, and identify scattering signatures via polarimetric exploitation. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. The authors would like to thank the National Nuclear Security Administration, Defense Nuclear Nonproliferation Research and Development, for sponsoring this work. We would also like to thank the Underground Nuclear Explosion Signatures Experiment team, a multi

  6. Feasibility of real-time location systems in monitoring recovery after major abdominal surgery.

    Science.gov (United States)

    Dorrell, Robert D; Vermillion, Sarah A; Clark, Clancy J

    2017-06-07

    Early mobilization after major abdominal surgery decreases postoperative complications and length of stay, and has become a key component of enhanced recovery pathways. However, objective measures of patient movement after surgery are limited. Real-time location systems (RTLS), typically used for asset tracking, provide a novel approach to monitoring in-hospital patient activity. The current study investigates the feasibility of using RTLS to objectively track postoperative patient mobilization. The real-time location system employs a meshed network of infrared and RFID sensors and detectors that sample device locations every 3 s resulting in over 1 million data points per day. RTLS tracking was evaluated systematically in three phases: (1) sensitivity and specificity of the tracking device using simulated patient scenarios, (2) retrospective passive movement analysis of patient-linked equipment, and (3) prospective observational analysis of a patient-attached tracking device. RTLS tracking detected a simulated movement out of a room with sensitivity of 91% and specificity 100%. Specificity decreased to 75% if time out of room was less than 3 min. All RTLS-tagged patient-linked equipment was identified for 18 patients, but measurable patient movement associated with equipment was detected for only 2 patients (11%) with 1-8 out-of-room walks per day. Ten patients were prospectively monitored using RTLS badges following major abdominal surgery. Patient movement was recorded using patient diaries, direct observation, and an accelerometer. Sensitivity and specificity of RTLS patient tracking were both 100% in detecting out-of-room ambulation and correlated well with direct observation and patient-reported ambulation. Real-time location systems are a novel technology capable of objectively and accurately monitoring patient movement and provide an innovative approach to promoting early mobilization after surgery.

  7. [Results of the video-assisted thoracic surgery lobectomy at our department in the last five-year periode].

    Science.gov (United States)

    Furák, József; Pécsy, Balázs; Ottlakán, Aurél; Németh, Tibor; Géczi, Tibor; Tiszlavicz, László; Lakatos, Anna; Lázár, György

    2016-09-01

    Herein we present the results of lobectomies performed with minimally invasive approach (video-assisted thoracic surgery - VATS) at our department during a period of five years. Between 1 January 2011 and 31 December 2015, 197 lobectomies (malignant lesions: 176 cases, benign lesions: 21 cases) were performed by three thoracic surgeons and one resident. Demographical data are as follows: 119 female/78 male, mean age: 62.4 years (range: 41-82 years). In 2011 three VATS lobectomies were performed, equaling 2.2 % of all lobectomies in that year. During the upcomig years the number of VATS lobectomies were as follows: 2012: 7 (7.3%), 2013: 13 (12%), 2014: 59 (34.5%) and 2015: 119 (68.5%). In 153 cases multiportal (78%) and in 44 cases uniportal (22%) anterior approach was performed. The resected lobes showed the following distribution: right upper: 85, mid lobe: 5, right lower: 28, left upper: 44, left lower: 34, upper bilobectomy: 1. In two cases sleeve lobectomy was performed. In 8 cases (4%) conversion to thoracotomy was needed and among the 46 uniportal procedures, 5 cases needed to be expanded into biportal approach (11%). During the study period, no intraoperative, or perioperative mortality occured. Mean operative time was 123 minutes (range: 60-135 minutes) and mean time of chest drainage was 4.3 days (range: 1-27 days). Air leakage lasting more than 7 days was present in 11.7%. Reoperation was needed in 4 cases (2%), in two cases due to bleeding, and in two cases because of expansive difficulties due to extended subcutaneous emphysema. Among the 176 VATS lobectomies performed due to malignant lesions, 169 lung cancers and 7 metastases were removed. The distribution according to the stage and histology of lung cancers was as follows: IA: 100 cases, IB: 28 cases, IIA: 17 cases, IIB: 3 cases, IIIA: 16 cases, IIIB: 1 case, and IV: 4 cases; adenocarcinoma: 128 cases, squamous cell carcinoma: 26 cases, large cell carcinoma: 3 cases, small cell lung cancer: 1 case

  8. Use of selfie sticks and iPhones to record operative photos and videos in plastic surgery.

    Science.gov (United States)

    Chandrappa, Ashok Basur; Nagaraj, Pradeep Kumar; Vasudevan, Srikanth; Nagaraj, Anantheswar Yelampalli; Jagadish, Krithika; Shah, Ankit

    2017-01-01

    Use of smartphone has become ubiquitous. With smartphone cameras becoming powerful, they are replacing digital cameras and digital SLRs as primary instruments to take photos and record videos. It is natural even for plastic surgeons that smartphones are handy to take still photographs and even record high-definition or 4K videos. Another invention which has become popular with smartphone photography is a selfie stick. We explain the possibility and methodology of using an iPhone and selfie stick to take operative photographs and high-quality videos.

  9. Use of selfie sticks and iPhones to record operative photos and videos in plastic surgery

    Directory of Open Access Journals (Sweden)

    Ashok Basur Chandrappa

    2017-01-01

    Full Text Available Use of smartphone has become ubiquitous. With smartphone cameras becoming powerful, they are replacing digital cameras and digital SLRs as primary instruments to take photos and record videos. It is natural even for plastic surgeons that smartphones are handy to take still photographs and even record high-definition or 4K videos. Another invention which has become popular with smartphone photography is a selfie stick. We explain the possibility and methodology of using an iPhone and selfie stick to take operative photographs and high-quality videos.

  10. Application of the Video Capture and Coding Technology in Video Monitoring Terminals%视频采集与编码技术在视频监控终端中的应用

    Institute of Scientific and Technical Information of China (English)

    赵满意; 赵利; 莫金旺; 李和; 刘涛

    2011-01-01

    考虑到开发的难易程度、生产成本和软件升级等因素,本文介绍了一种基于ARM处理器和嵌入式Linux操作系统的无线视频监控终端的设计和实现方法;分析了在嵌入式Linux操作系统下基于V4L的视频采集的新思路与基于MPEG-4的视频编码的优点,阐述了整个终端系统开发的难点及相应的解决方案;给出了无线监控终端的实现方案、视频采集模块的设计方法、XVID编码器的编码过程和MPEG-4视频编码标准在ARM平台上的优化方案.系统在ARM-Linux平台上进行了实际的视频采集及编码性能测试.测试结果表明,基于V4L的视频采集和基于XVID的MPEG-4编码的无线监控终端视频采集实时性好,压缩效率高,码流平稳,完全能满足用户的监控需求.%Considering the degree of realization,cost of manufacturing and upgrading, this paper introduces the design and implementation of wireless video monitoring terminals based on ARM and embedded Linux systems.The new idea of video capture based on V4L and the merits of video coding based on MPEG-4 in the Linux systems are analysed.We described the difficulty of the whole system development and the corresponding solutions.Also, the implementation of wireless video monitoring terminals,the design of video capture, the encoding process of the XVID encoder and the optimization schemes of the MPEG-4 video coding standard on the ARM platform are all given in this paper.After the actual video capture and encoding performance test based on the AMR-Linux, the results show that the wireless monitoring terminals based on V4L and MPEG-4 do well in real-time video capturing ,high compression efficiency and steady streams,and are fully able to meet the user's needs on video monitoring.

  11. Uniportal video-assisted thoracic surgery resection of small ground-glass opacities (GGOs) localized with CT-guided placement of microcoils and palpation

    Science.gov (United States)

    Shi, Zhe; Jiang, Sen; Jiang, Gening

    2016-01-01

    Although uniportal video-assisted thoracic surgery (VATS) is becoming more popular, it’s still very challenging to conduct a wedge resection of small pulmonary ground-glass opacities (GGOs), especially deeply situated subpleural GGOs, via uniportal VATS. We successfully performed thirteen uniportal VATS wedge resections through an approach that combines radiologically guided microcoil localization with palpation, and we encountered no complications related to the new approach. Based on our experience, a combination of CT-guided microcoil localization with palpation in uniportal VATS for deeply situated subpleural GGOs is a safe and effective procedure for accurate diag¬nosis and resection of indeterminate GGOs. PMID:27499978

  12. Penetrating thoracic injury with retained foreign body: can video-assisted thoracic surgery take up the leading role in acute management?

    Science.gov (United States)

    Yu, Peter S Y; Chan, Herman H M; Lau, Rainbow W H; Capili, Freddie G; Underwood, Malcolm J; Wan, Innes Y P

    2016-08-01

    Video-assisted thoracic surgery (VATS) is widely adopted in acute management of patient with thoracic trauma, but its use in penetrating thoracic injuries with retained foreign bodies were rarely reported. We described three of such cases using VATS as the first line approach. Identification of injuries, control of bleeders, clot evacuation, resection of damaged lung parenchyma and safe retrieval of foreign bodies were all performed via complete VATS within short operative time. Patient were uneventfully discharged during early post-operative period. We suggest that, for haemodynamically stable patients, VATS offers a safe and minimally-invasive alternative to conventional thoracotomy for penetrating thoracic injury with retained foreign bodies.

  13. Decision-making in temporal lobe epilepsy surgery

    NARCIS (Netherlands)

    Uijl, S.G.

    2008-01-01

    Epilepsy surgery is a successful treatment option for patients with drug resistant temporal lobe epilepsy. To decide whether patients are surgery candidates, a complex presurgical work-up is performed, starting with basic diagnostic tests (patient history, MRI, video EEG monitoring), followed by

  14. Warning navigation system using real-time safe region monitoring for otologic surgery.

    Science.gov (United States)

    Cho, Byunghyun; Oka, Masamichi; Matsumoto, Nozomu; Ouchida, Riichi; Hong, Jaesung; Hashizume, Makoto

    2013-05-01

    We developed a surgical navigation system that warns the surgeon with auditory and visual feedback to protect the facial nerve with real-time monitoring of the safe region during drilling. Warning navigation modules were developed and integrated into a free open source software platform. To obtain high registration accuracy, we used a high-precision laser-sintered template of the patient's bone surface to register the computed tomography (CT) images. We calculated the closest distance between the drill tip and the surface of the facial nerve during drilling. When the drill tip entered the safe regions, the navigation system provided an auditory and visual signal which differed in each safe region. To evaluate the effectiveness of the system, we performed phantom experiments for maintaining a given safe margin from the facial nerve when drilling bone models, with and without the navigation system. The error of the safe margin was measured on postoperative CT images. In real surgery, we evaluated the feasibility of the system in comparison with conventional facial nerve monitoring. The navigation accuracy was submillimeter for the target registration error. In the phantom study, the task with navigation ([Formula: see text] mm) was more successful with smaller error, than the task without navigation ([Formula: see text] mm, [Formula: see text]). The clinical feasibility of the system was confirmed in three real surgeries. This system could assist surgeons in preserving the facial nerve and potentially contribute to enhanced patient safety in the surgery.

  15. Discussion on the design of digital video monitoring of sewage treatment plant%谈污水处理厂数字视频监控的设计

    Institute of Scientific and Technical Information of China (English)

    杨坤

    2012-01-01

    Through the brief introduction and contrast on the analog video monitoring system and digital video monitoring system,and combining with the project examples introduced the design of digital video monitoring of sewage treatment plant,had important significance to operation,management,maintenance of sewage treatment plant.%通过对模拟视频监控系统和数字视频监控系统做简单介绍和对比,并结合工程实例介绍了污水处理厂中数字视频监控系统的设计,对污水厂的运行、管理、维护有重要意义。

  16. Monitoring of Structures and Mechanical Systems Using Virtual Visual Sensors for Video Analysis: Fundamental Concept and Proof of Feasibility

    Directory of Open Access Journals (Sweden)

    Thomas Schumacher

    2013-12-01

    Full Text Available Structural health monitoring (SHM has become a viable tool to provide owners of structures and mechanical systems with quantitative and objective data for maintenance and repair. Traditionally, discrete contact sensors such as strain gages or accelerometers have been used for SHM. However, distributed remote sensors could be advantageous since they don’t require cabling and can cover an area rather than a limited number of discrete points. Along this line we propose a novel monitoring methodology based on video analysis. By employing commercially available digital cameras combined with efficient signal processing methods we can measure and compute the fundamental frequency of vibration of structural systems. The basic concept is that small changes in the intensity value of a monitored pixel with fixed coordinates caused by the vibration of structures can be captured by employing techniques such as the Fast Fourier Transform (FFT. In this paper we introduce the basic concept and mathematical theory of this proposed so-called virtual visual sensor (VVS, we present a set of initial laboratory experiments to demonstrate the accuracy of this approach, and provide a practical in-service monitoring example of an in-service bridge. Finally, we discuss further work to improve the current methodology.

  17. Third ventriculostomy through the lamina terminalis for intracranial pressure monitoring after aneurysm surgery: technical note

    Directory of Open Access Journals (Sweden)

    Kraemer Jorge L.

    2002-01-01

    Full Text Available OBJECTIVE: A new ventriculostomy technique through the lamina terminalis is described. This technique is applied mainly during aneurysm surgery at the acute stage. METHOD: Thirteen patients were operated on intracranial aneurysms and, during the procedure, had the lamina terminalis fenestrated. A ventricular catheter was inserted into the third ventricule, left in place and connected to an external drainage system for further intracranial pressure (ICP monitoring and/or cerebrospinal fluid (CSF drainage. RESULTS: ICP readings and CSF drainage were obtained in all cases. No complication was recorded. CONCLUSION: Third ventriculostomy through the lamina terminalis is a simple and easy technique that can be used as an alternative to conventional ventriculostomy. This procedure can be indicated in cases where the ventricule is not reached by means of another technique, and when the decision to perform ventriculostomy is made at the end of aneurysm surgery.

  18. MR monitoring of focused ultrasonic surgery of renal cortex: experimental and simulation studies.

    Science.gov (United States)

    Hynynen, K; Damianou, C A; Colucci, V; Unger, E; Cline, H H; Jolesz, F A

    1995-01-01

    The aim of the study was to test the hypothesis that magnetic resonance (MR) imaging-guided and -monitored noninvasive ultrasonic surgery can be performed in highly perfused tissues from outside the body. A simulation study was performed to evaluate the optimal sonication parameters. An MR-compatible positioning device was then used to manipulate a focused ultrasound transducer in an MR imager, which was used to sonicate kidneys of five rabbits at various power levels and different durations. Temperature elevation during sonication was monitored with a T1-weighted spoiled gradient-echo sequence. The simulation study demonstrated that a sharply focused transducer and relatively short sonication times (30 seconds or less) are necessary to prevent damage to the overlying skin and muscle tissue, which have a much lower blood perfusion rate than kidney. The experiments showed that the imaging sequence was sensitive enough to show temperature elevation during sonication, thereby indicating the location of the beam focus. Histologic evaluations showed that kidney necrosis could be consistently induced without damage to overlying skin and muscle. The study demonstrated that highly perfused tissues such as the renal cortex can be coagulated from outside the body with focused ultrasound and that MR imaging can be used to guide and monitor this surgery.

  19. Repeated sugammadex reversal of muscle relaxation during lumbar spine surgery with intraoperative neurophysiological multimodal monitoring.

    Science.gov (United States)

    Errando, C L; Blanco, T; Díaz-Cambronero, Ó

    2016-11-01

    Intraoperative neurophysiological monitoring during spine surgery is usually acomplished avoiding muscle relaxants. A case of intraoperative sugammadex partial reversal of the neuromuscular blockade allowing adequate monitoring during spine surgery is presented. A 38 year-old man was scheduled for discectomy and vertebral arthrodesis throughout anterior and posterior approaches. Anesthesia consisted of total intravenous anesthesia plus rocuronium. Intraoperatively monitoring was needed, and the muscle relaxant reverted twice with low dose sugammadex in order to obtain adequate responses. The doses of sugammadex used were conservatively selected (0.1mg/kg boluses increases, total dose needed 0.4mg/kg). Both motor evoqued potentials, and electromyographic responses were deemed adequate by the neurophysiologist. If muscle relaxation was needed in the context described, this approach could be useful to prevent neurological sequelae. This is the first study using very low dose sugammadex to reverse rocuronium intraoperatively and to re-establish the neuromuscular blockade. Copyright © 2016 Sociedad Española de Anestesiología, Reanimación y Terapéutica del Dolor. Publicado por Elsevier España, S.L.U. All rights reserved.

  20. Noninvasive intracranial pressure monitoring via optic nerve sheath diameter for robotic surgery in steep Trendelenburg position

    Directory of Open Access Journals (Sweden)

    Shagun Bhatia Shah

    2015-01-01

    Full Text Available Background: Recent reports of increased intracranial pressure (ICP due to steep Trendelenburg (ST position causing neurological deterioration, decreased regional cerebral oxygen saturation and postoperative visual loss after robotic urological and gynecological surgeries led us to consider a simple technique of ICP monitoring. Ours is one of the first instances reported of quantitative noninvasive measurement of increase in ICP with ST position by serial measurement of binocular optic nerve sheath diameter (ONSD in patients undergoing robot assisted urological and gynecological oncosurgery. We tested whether ONSD values rose to above the upper limits of normal and for what length of time they remained elevated. Materials and Methods: Prospective, randomized, interventional, parallel group, active control study conducted on 252 American Society of Anesthesiologists I and II patients. ONSD was measured using 7.5 MHz linear ultrasound probe in supine and Trendelenburg positions. Statistics: Student′s t-test to compare the inter-group mean ONSD and the repetitive t-test for intra-group analysis. Result: Comparison of the mean ONSD values of both groups yielded a 2-tailed significance P <0.01 at all compared time points intra- and post-operatively. In Group-O (open surgery; supine position, the baseline mean bilateral ONSD was 4.36 mm, which did not show any statistically significant change throughout open surgery and postoperative period. On de-docking the robot, 6.2 mm was the mean ONSD value in Group-R (robotic group while 4.3 mm was the corresponding value in control Group-O. Conclusion: ONSD evaluation is a simple, quick, safe, readily available, reliable, cost effective, noninvasive, potential standard of care for screening and monitoring of patients undergoing robotic surgery in ST position.

  1. S3 guidelines for intensive care in cardiac surgery patients: hemodynamic monitoring and cardiocirculary system.

    Science.gov (United States)

    Carl, M; Alms, A; Braun, J; Dongas, A; Erb, J; Goetz, A; Goepfert, M; Gogarten, W; Grosse, J; Heller, A R; Heringlake, M; Kastrup, M; Kroener, A; Loer, S A; Marggraf, G; Markewitz, A; Reuter, D; Schmitt, D V; Schirmer, U; Wiesenack, C; Zwissler, B; Spies, C

    2010-06-15

    Hemodynamic monitoring and adequate volume-therapy, as well as the treatment with positive inotropic drugs and vasopressors are the basic principles of the postoperative intensive care treatment of patient after cardiothoracic surgery. The goal of these S3 guidelines is to evaluate the recommendations in regard to evidence based medicine and to define therapy goals for monitoring and therapy. In context with the clinical situation the evaluation of the different hemodynamic parameters allows the development of a therapeutic concept and the definition of goal criteria to evaluate the effect of treatment. Up to now there are only guidelines for subareas of postoperative treatment of cardiothoracic surgical patients, like the use of a pulmonary artery catheter or the transesophageal echocardiography. The German Society for Thoracic and Cardiovascular Surgery (Deutsche Gesellschaft für Thorax-, Herz- und Gefässchirurgie, DGTHG) and the German Society for Anaesthesiology and Intensive Care Medicine (Deutsche Gesellschaft für Anästhesiologie und lntensivmedizin, DGAI) made an approach to ensure and improve the quality of the postoperative intensive care medicine after cardiothoracic surgery by the development of S3 consensus-based treatment guidelines. Goal of this guideline is to assess the available monitoring methods with regard to indication, procedures, predication, limits, contraindications and risks for use. The differentiated therapy of volume-replacement, positive inotropic support and vasoactive drugs, the therapy with vasodilatators, inodilatators and calcium sensitizers and the use of intra-aortic balloon pumps will also be addressed. The guideline has been developed following the recommendations for the development of guidelines by the Association of the Scientific Medical Societies in Germany (AWMF). The presented key messages of the guidelines were approved after two consensus meetings under the moderation of the Association of the Scientific Medical

  2. S3 guidelines for intensive care in cardiac surgery patients: hemodynamic monitoring and cardiocirculary system

    Directory of Open Access Journals (Sweden)

    Schmitt, D. V.

    2010-01-01

    Full Text Available Hemodynamic monitoring and adequate volume-therapy, as well as the treatment with positive inotropic drugs and vasopressors are the basic principles of the postoperative intensive care treatment of patient after cardiothoracic surgery. The goal of these S3 guidelines is to evaluate the recommendations in regard to evidence based medicine and to define therapy goals for monitoring and therapy. In context with the clinical situation the evaluation of the different hemodynamic parameters allows the development of a therapeutic concept and the definition of goal criteria to evaluate the effect of treatment. Up to now there are only guidelines for subareas of postoperative treatment of cardiothoracic surgical patients, like the use of a pulmonary artery catheter or the transesophageal echocardiography. The German Society for Thoracic and Cardiovascular Surgery (Deutsche Gesellschaft für Thorax-, Herz- und Gefäßchirurgie, DGTHG and the German Society for Anaesthesiology and Intensive Care Medicine (Deutsche Gesellschaft für Anästhesiologie und lntensivmedizin, DGAI made an approach to ensure and improve the quality of the postoperative intensive care medicine after cardiothoracic surgery by the development of S3 consensus-based treatment guidelines. Goal of this guideline is to assess the available monitoring methods with regard to indication, procedures, predication, limits, contraindications and risks for use. The differentiated therapy of volume-replacement, positive inotropic support and vasoactive drugs, the therapy with vasodilatators, inodilatators and calcium sensitizers and the use of intra-aortic balloon pumps will also be addressed. The guideline has been developed following the recommendations for the development of guidelines by the Association of the Scientific Medical Societies in Germany (AWMF. The presented key messages of the guidelines were approved after two consensus meetings under the moderation of the Association of the

  3. Pollen Bearing Honey Bee Detection in Hive Entrance Video Recorded by Remote Embedded System for Pollination Monitoring

    Science.gov (United States)

    Babic, Z.; Pilipovic, R.; Risojevic, V.; Mirjanic, G.

    2016-06-01

    Honey bees have crucial role in pollination across the world. This paper presents a simple, non-invasive, system for pollen bearing honey bee detection in surveillance video obtained at the entrance of a hive. The proposed system can be used as a part of a more complex system for tracking and counting of honey bees with remote pollination monitoring as a final goal. The proposed method is executed in real time on embedded systems co-located with a hive. Background subtraction, color segmentation and morphology methods are used for segmentation of honey bees. Classification in two classes, pollen bearing honey bees and honey bees that do not have pollen load, is performed using nearest mean classifier, with a simple descriptor consisting of color variance and eccentricity features. On in-house data set we achieved correct classification rate of 88.7% with 50 training images per class. We show that the obtained classification results are not far behind from the results of state-of-the-art image classification methods. That favors the proposed method, particularly having in mind that real time video transmission to remote high performance computing workstation is still an issue, and transfer of obtained parameters of pollination process is much easier.

  4. Applications for a hybrid operating room in thoracic surgery: from multidisciplinary procedures to ­­image-guided video-assisted thoracoscopic surgery

    Science.gov (United States)

    Terra, Ricardo Mingarini; Andrade, Juliano Ribeiro; Mariani, Alessandro Wasum; Garcia, Rodrigo Gobbo; Succi, Jose Ernesto; Soares, Andrey; Zimmer, Paulo Marcelo

    2016-01-01

    ABSTRACT The concept of a hybrid operating room represents the union of a high-complexity surgical apparatus with state-of-the-art radiological tools (ultrasound, CT, fluoroscopy, or magnetic resonance imaging), in order to perform highly effective, minimally invasive procedures. Although the use of a hybrid operating room is well established in specialties such as neurosurgery and cardiovascular surgery, it has rarely been explored in thoracic surgery. Our objective was to discuss the possible applications of this technology in thoracic surgery, through the reporting of three cases. PMID:27812640

  5. 危险源监控视频关键帧提取初步研究%Study of key frame extraction from hazard installation monitoring video

    Institute of Scientific and Technical Information of China (English)

    王华东; 刘国柱; 李朝玲

    2012-01-01

    An approach of key frame extraction from hazard installation monitoring video is presented. Due to the characteristics of hazard installation monitoring video, DC images is compared to reduce the redundant information and get effective video. Key frame extraction algorithm based on shot for MPEG compressed video is used to get the final result. The experimental result illustrates that the approach can extract key frames from hazard installation monitoring video effectively.%提出了一种危险源监控视频关键帧提取算法.根据危险源监控视频的特点,利用I帧DC图的比较,减少危险源监控视频的冗余信息,获取有效视频;利用基于镜头的压缩域关键帧提取方法提取帧.实验结果表明,该方法能有效进行危险源监控视频关键帧的提取.

  6. Corrective Jaw Surgery

    Medline Plus

    Full Text Available ... Do Who We Are News Videos Contact Find a Surgeon What We Do Administration of Anesthesia Administration ... Craniofacial Surgery Cleft Lip/Palate and Craniofacial Surgery A cleft lip may require one or more surgeries ...

  7. 基于ARM的家居远程视频监控平台%Household Remote Video Monitoring Platform Based on ARM

    Institute of Scientific and Technical Information of China (English)

    何少佳; 史剑清

    2014-01-01

    A household remote video monitoring platform is designed and basis of embedded and WIFI wireless network. This system chooses S3C6410 microprocessor which based on ARM11 cores as the kernel controler regards USB camera as capture terminal, captures video with application function which provided by Video4Linux2, encodes and decodes the video by T264 software, and transfers the video data and control instruction rely on RTP/RTCP protocol and TCP protocol through WIFI wireless network. The experimental results show that this platform makes video image smooth, and it can well meet the demand of household wireless video monitoring application. At the same time, this platform has simple structure, low cost, and easy to promote.%设计了一种基于嵌入式和WIFI无线网络的家用远程视频监控平台。本系统采用基于ARM11内核的S3C6410微处理器作为控制器核心, USB摄像头作为采集端,利用Video4Linux2(V4L2)提供的应用函数等完成视频采集,使用T264软件进行编码解码,采用WIFI无线网络,依靠RTP/ RTCP协议和TCP协议实现视频数据和控制指令的远程传输。实验结果表明,本平台监控视频画面流畅,能很好的满足家居无线视频监控的应用需求。同时本平台结构简单、造价低廉、易于推广。

  8. The effectiveness of Google GLASS as a vital signs monitor in surgery: A simulation study.

    Science.gov (United States)

    Iqbal, Mohammed Husnain; Aydin, Abdullatif; Lowdon, Alexandra; Ahmed, Hamza Ibn; Muir, Gordon H; Khan, M Shamim; Dasgupta, Prokar; Ahmed, Kamran

    2016-12-01

    To assess the effectiveness of the Google GLASS as a vital signs monitor in a surgical setting and identify potential uses. This prospective, observational and comparative study recruited novice (n = 24), intermediate (n = 8) and expert urologists (n = 5). All candidates performed a procedure on the GreenLight Simulator within a simulated setting using a standard vital signs monitor and then the Google GLASS. The time taken to respond to abnormal vital signs during both sessions was recorded. A quantitative survey was used to assess the usability and acceptability of the Google GLASS surgery. The majority (84%) of participants responded quicker to abnormal signs with the Google GLASS compared to a standard monitor (p = 0.0267). The average simulation score during a standard-monitor and GLASS-session scored to be statistically insignificant (p = 0.253). All parameters of simulation were also similar in both sessions including average sweep speed (p = 0.594), average blood loss (p = 0.761) and average grams vaporised (p = 0.102). Surgical performance between both sessions was similar and not hampered by the use of Google GLASS. Furthermore, 81% of candidates stated the GLASS was comfortable to wear during the procedure. This study has demonstrated that head-mounted displays such as the Google GLASS are potentially useful in surgery to aid patient care without hampering the surgeons view. It is hoped that the innovation and evolution of these devices triggers the potential future application of such devices within the medical field. Copyright © 2016 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

  9. COMPARISON OF DEXMEDETOMIDINE WITH FENTANYL FOR SEDATION IN TYMPANOPLASTY (ENT SURGERIES DONE UNDER MONITORED ANAESTHESIA CARE

    Directory of Open Access Journals (Sweden)

    Illendula

    2016-02-01

    Full Text Available INTRODUCTION Monitored anaesthesia care involves administering a combination of drugs for anxiolytic, hypnotic, amnestic and analgesic effect. Ideally it should result in less physiological disturbance and allow for more rapid recovery than general anaesthesia. It typically involves administration of local anaesthesia in combination with IV sedatives, anxiolytic and analgesic drugs which is a common practice during various ENT surgical procedures. AIM OF STUDY Is to “Compare Dexmedetomidine with Fentanyl for sedation in tympanoplasty (ENT Surgeries”. The objective of the study is to evaluate the efficacy of dexmedetomidine and fentanyl as an appropriate sedative drug for Monitored Anaesthesia Care in Tympanoplasty (ENT surgeries METHODS & MATERIALS A total of 60 patients are being recruited into this study with regards to assess, Pain, Discomfort, Sedation, Peripheral Oxygen Saturation (SPO2 & Systolic Blood Pressure (SBP, Diastolic blood pressure (DBP, Mean arterial blood pressure(MAP & Heart rate This study was undertaken at Govt. ENT Hospital Hyderabad. Sixty (60 patients undergoing Tympanoplasty surgery were taken for study. Thus the study contains 30 patients in Dexmedetomidine group-(Group D and 30 patients in Fentanyl group (Group F RESULT Dexmedetomidine provides less discomfort, better sedation, and analgesia when compared with fentanyl under monitored anaesthesia care (Conscious sedation. However, the risk of adverse effects requires monitoring for ready intervention. It provides a unique type of sedation, “conscious sedation” in which patients appear to be sleepy but are easily arousable, cooperative and communicative when stimulated. It is sedative and analgesic agent, with opioid-sparing properties and minimal respiratory depression.

  10. Design of the Cloud Storage Model for Video Monitoring%视频监控云存储模型设计

    Institute of Scientific and Technical Information of China (English)

    武文斌

    2012-01-01

    The paper introduces the characteristics and models of cloud storage,designs a topological structure of cloud storage for video monitoring based on the features of video storage,analyzes its major components and functions,and proposes the characteristics and prospects of the cloud storage for video monitoring.%介绍了云存储的特点和模型,并结合视频存储的特点,设计了一种用于视频监控的云存储拓扑机构图,分析了其主要组成部分和主要功能机制,提出了视频监控云存储的特点和未来发展。

  11. Ablation for atrial fibrillation during mitral valve surgery: 1-year results through continuous subcutaneous monitoring.

    Science.gov (United States)

    Bogachev-Prokophiev, Alexandr; Zheleznev, Sergey; Romanov, Alexander; Pokushalov, Evgeny; Pivkin, Alexey; Corbucci, Giorgio; Karaskov, Alexander

    2012-07-01

    Continuous monitoring of cardiac rhythm may play an important role in measuring the true symptomatic/asymptomatic atrial fibrillation (AF) burden and improve the management of anti-arrhythmic and anti-thrombotic therapies. Forty-seven patients with mitral valve disease and longstanding persistent AF (LSPAF) underwent a left atrial maze procedure with bipolar radiofrequency and valve surgery. The follow-up data recorded by an implanted loop recorder were analysed after 3, 6 and 12 months. On discharge, 40 (85.1%) patients were in stable sinus rhythm, as documented by in-office electrocardiography (ECG), 4 (8.5%) were in pacemaker rhythm and 3 (6.4%) were in AF. One (2.1%) patient died after 7 months. On 12-month follow-up examination, 30 (65.2%) patients had an AF burden 0.5%. Two (4.3%) patients with AF recurrences were completely asymptomatic. Among the symptomatic events stored by the patients, only 27.6% was confirmed as genuine AF recurrences according to the concomitant ECG recorded by the implanted loop recorder. A concomitant bipolar maze procedure during mitral valve surgery is effective in treating AF, as proved by detailed 1-year continuous monitoring.

  12. Intraoperative tractography and motor evoked potential (MEP) monitoring in surgery for gliomas around the corticospinal tract.

    Science.gov (United States)

    Maesawa, Satoshi; Fujii, Masazumi; Nakahara, Norimoto; Watanabe, Tadashi; Wakabayashi, Toshihiko; Yoshida, Jun

    2010-07-01

    Our goal is to indicate the importance of combining intraoperative tractography with motor-evoked potential (MEP) monitoring for glioma surgery in motor eloquent areas. Tumor removal was performed in 28 patients with gliomas in and around the corticospinal tract (CST), in an operation theater equipped with an integrated high-field intraoperative magnetic resonance imaging and a neuronavigation system. Diffusion-tensor imaging-based tractography of the CST was implemented preoperatively and intraoperatively. When the surgically manipulated area came close to the corticospinal pathway, MEP responses were elicited by subcortical stimulation. Responsive areas were compared with the locations of fibers traced by preoperative and intraoperative tractography. Imaging and functional outcomes were reviewed. Intraoperative tractography demonstrated significant inward or outward shift during surgery. MEP responses were observed around the tract at various intensities, and the distance between MEP responsive sites and intraoperative tractography was significantly correlated with the stimulation intensity (P < 0.01). The distance from preoperative tractography was not correlated. A more than subtotal resection was achieved in 24 patients (85.7%). Transient motor deterioration was seen in 12 patients (42.8%), and a permanent deficit was seen in 1 patient (3.5%). We found that intraoperative tractography demonstrated the location of the CST more accurately than preoperative tractography. The results of the linear regression between distance and stimulation intensity were informative for guiding approaches to tumor remnants without impinging on the CST. The combination of intraoperative tractography and MEP monitoring can enhance the quality of surgery for gliomas in motor eloquent areas. Copyright © 2010 Elsevier Inc. All rights reserved.

  13. Ischemia monitoring in off-pump coronary artery bypass surgery using intravascular near-infrared spectroscopy

    Directory of Open Access Journals (Sweden)

    Zerkowski Hans-Reinhard

    2006-05-01

    Full Text Available Abstract Background In off-pump coronary artery bypass surgery, manipulations on the beating heart can lead to transient interruptions of myocardial oxygen supply, which can generate an accumulation of oxygen-dependent metabolites in coronary venous blood. The objective of this study was to evaluate the reliability of intravascular near-infrared spectroscopy as a monitoring method to detect possible ischemic events in off-pump coronary artery bypass procedures. Methods In 15 elective patients undergoing off-pump myocardial revascularization, intravascular near-infrared spectroscopic analysis of coronary venous blood was performed. NIR signals were transferred through a fiberoptic catheter for signal emission and collection. For data analysis and processing, a miniature spectrophotometer with multivariate statistical package was used. Signal acquisition and analysis were performed before and after revascularization. Spectroscopic data were compared with hemodynamic parameters, electrocardiogram, transesophageal echocardiography and laboratory findings. Results A conversion to extracorporeal circulation was not necessary. The mean number of grafts per patient was 3.1 ± 0.6. An intraoperative myocardial ischemia was not evident, as indicated by electrocardiogram and transesophageal echocardiography. Continuous spectroscopic analysis showed reproducible absorption spectra of coronary sinus blood. Due to uneventful intraoperative courses, clear ischemia-related changes could be detected in none of the patients. Conclusion Our initial results show that intravascular near-infrared spectroscopy can reliably be used for an online intraoperative ischemia monitoring in off-pump coronary artery bypass surgery. However, the method has to be further evaluated and standardized to determine the role of spectroscopy in off-pump coronary artery bypass surgery.

  14. General anesthesia type does not influence serum levels of neutrophil gelatinase-associated lipocalin during the perioperative period in video laparoscopic bariatric surgery.

    Science.gov (United States)

    Fernandes, Adriano; Ettinger, João; Amaral, Fabiano; Ramalho, Maria José; Alves, Rodrigo; Módolo, Norma Sueli Pinheiro

    2014-12-01

    Video laparoscopic bariatric surgery is the preferred surgical technique for treating morbid obesity. However, pneumoperitoneum can pose risks to the kidneys by causing a decrease in renal blood flow. Furthermore, as in other surgical procedures, laparoscopic bariatric surgery triggers an acute inflammatory response. Neutrophil gelatinase-associated lipocalin is an early and accurate biomarker of renal injury, as well as of the inflammatory response. Anesthetic drugs could offer some protection for the kidneys and could attenuate the acute inflammatory response from surgical trauma. The objective of this study was to compare the effects of two types of anesthetics, propofol and sevoflurane, on the serum levels of neutrophil gelatinase-associated lipocalin during the perioperative period in laparoscopic bariatric surgery. Sixty-four patients scheduled for laparoscopic bariatric surgery were randomized into two anesthesia groups and were administered either total intravenous anesthesia (propofol) or inhalation anesthesia (sevoflurane). In the perioperative period, blood samples were collected at three time points (before anesthesia, 6 hours after pneumoperitoneum and 24 hours after pneumoperitoneum) and urine output was measured for 24 hours. Acute kidney injuries were evaluated by examining both the clinical and laboratory parameters during the postoperative period. The differences between the groups were compared using non-parametric tests. ReBEC (http://www.ensaiosclinicos.gov.br/rg/recruiting/): RBR-8wt2fy None of the patients developed an acute kidney injury during the study and no significant differences were found between the serum neutrophil gelatinase-associated lipocalin levels of the groups during the perioperative period. The choice of anesthetic drug, either propofol or sevoflurane, did not affect the serum levels of neutrophil gelatinase-associated lipocalin during the perioperative period in laparoscopic bariatric surgery.

  15. Research and Application of Video Broadcast System in Laparoscopic Surgery%腹腔镜手术中视频直播系统的应用研究

    Institute of Scientific and Technical Information of China (English)

    陈丽璇; 童振; 曲建明; 杨骥

    2011-01-01

    Along with the development of medical imaging technology and breakthroughs in medical treatment,Minimally Invasive Surgery therapies were widely adopted Because of its minimaly invasive and quick recovery after surgery, Laparoscopic surgery has been widely used in clinical, but when it comes to the growing demand of Minimally Invasive Surgery and the requirements of building digital hospital, the traditional Laparoscopic equipments and procedure of the operation cannot meet the needs of the hospital's daily business applications.Thus, we transformed the laparoscopic surgery first during the upgrade of the PACS of hospital.The main purpose of this essay is to detail the Video Broadcast System base on the upgrade transformation.We made a innovative design and application for this Video Broadcast System of operation room from the selection of the solution, the architecture of the system and the realization of the hardware and software.At the same time, we demonstrate the advantages of the new systems.From the implementation of the project in the long run, the upgrade of the systems is so successful%随着医学影像技术的发展和医疗手段的突破,人们开始广泛采用微创手术疗法.腹腔镜手术由于其具有微创性、手术后恢复快等特点,因而在临床上得到了广泛的应用,但是从目益增长的微创手术需求以及建设数字化医院的要求来看,传统的腹腔镜设备和流程已经不能满足医院的日常业务应用需求.因而,深圳市龙岗中心医院在进行PACS系统升级过程中,首先对腹腔镜手术室进行了改造.基于这次改造,对手术室的视频直播系统进行了创新性的设计和实施,从系统方案的确定、系统架构的选择到系统软硬件的具体实现等几个方面详细论述了视频直播系统,同时展现了新系统的一些技术优势,从整个项目的实施应用情况来看,此次升级改造是成功的.

  16. Video exposure monitoring as part of a strategy to assess exposure to nanoparticles

    NARCIS (Netherlands)

    Beurskens-Comuth, P.A.W.V.; Verbist, K.; Brouwer, D.

    2011-01-01

    Objectives: There is a growing awareness of the potential risks for human health of exposure to ultrafine particles or nanoparticles. In that context, workplace air measurements become important, and various strategies have been developed to monitor exposure. In addition, observations and time/activ

  17. Video system for monitoring sea-surface characteristics in coastal zone

    Science.gov (United States)

    Konstantinov, Oleg G.; Pavlov, Andrey N.

    2012-11-01

    A method of investigation sea surface roughness by analysis polarization images is suggested. Equipment and software were developed and tested at the Pacific Oceanological Institute (POI) It is shown a possibility to study surface manifestations of hydrodynamic processes in coastal zone, such as the dynamics of vortex structures, internal waves, spatio-temporal properties of surface waves by using the panoramic video system for a sea surface control and by the imaging polarimeter. Analysis of a time sequence of transformed to the plane panoramic images obtained using the system allows to estimate a velocity field of vortex structure, phase velocity of surface manifestations of internal waves, intensity and dynamics of surface films of oil pollution. It is shown an ability of sea surface reconstruction by analyzing time sequence of the imaging polarimeter pictures. The results are compared with the height difference of the floats located on the vertical guides that are in the imaging polarimeter field of view. The float heights obtained from its image coordinates. Field experiments were conducted at the POI marine station in the Japan Sea. Moreover, the developed methods and equipment may be used as a source of unique in situ information on the sea surface roughness during satellite optical and radar sensing.

  18. Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display monitors

    Directory of Open Access Journals (Sweden)

    Carbonari Karina

    2005-01-01

    Full Text Available It is well recognized that electromagnetic fields can affect the biological functions of living organisms at both cellular and molecular level. The potential damaging effects of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube video display monitors (VDMs has become a concern within the scientific community. We studied the effects of occupational exposure to VDMs in 10 males and 10 females occupationally exposed to VDMs and 20 unexposed control subjects matched for age and sex. Genetic damage was assessed by examining the frequency of micronuclei in exfoliated buccal cells and the frequency of other nuclear abnormalities such as binucleated and broken egg cells. Although there were no differences regarding binucleated cells between exposed and control individuals our analysis revealed a significantly higher frequency of micronuclei (p < 0.001 and broken egg cells (p < 0.05 in individuals exposed to VDMs as compared to unexposed. We also found that the differences between individuals exposed to VDMs were significantly related to the sex of the individuals and that there was an increase in skin, central nervous system and ocular disease in the exposed individuals. These preliminary results indicate that microcomputer workers exposed to VDMs are at risk of significant cytogenetic damage and should periodically undergo biological monitoring.

  19. A Brief Study of Video Encryption Algorithms

    Directory of Open Access Journals (Sweden)

    Pranali Pasalkar,

    2015-02-01

    Full Text Available Video is a set of images .Video encryption is encrypting those set of images .Thus video encryption is simply hiding your video from prying eyes .Video monitoring has always been in concerned .Multimedia security is very important for multimedia commerce on Internet such as video on demand and Real time video multicast. There are various video encryption algorithm. All have some kind of weakness .In this paper classification of various existing algorithm, its advantages and disadvantages is discussed.

  20. Use of ultrasound, color Doppler imaging and radiography to monitor periapical healing after endodontic surgery.

    Science.gov (United States)

    Tikku, Aseem P; Kumar, Sunil; Loomba, Kapil; Chandra, Anil; Verma, Promila; Aggarwal, Renu

    2010-09-01

    This study evaluated the effectiveness of ultrasound, color Doppler imaging and conventional radiography in monitoring the post-surgical healing of periapical lesions of endodontic origin. Fifteen patients who underwent periapical surgery for endodontic pathology were randomly selected. In all patients, periapical lesions were evaluated preoperatively using ultrasound, color Doppler imaging and conventional radiography, to analyze characteristics such as size, shape and dimensions. On radiographic evaluation, dimensions were measured in the superoinferior and mesiodistal direction using image-analysis software. Ultrasound evaluation was used to measure the changes in shape and dimensions on the anteroposterior, superoinferior, and mesiodistal planes. Color Doppler imaging was used to detect the blood-flow velocity. Postoperative healing was monitored in all patients at 1 week and 6 months by using ultrasound and color Doppler imaging, together with conventional radiography. The findings were then analyzed to evaluate the effectiveness of the 3 imaging techniques. At 6 months, ultrasound and color Doppler imaging were significantly better than conventional radiography in detecting changes in the healing of hard tissue at the surgical site (P < 0.004). This study demonstrates that ultrasound and color Doppler imaging have the potential to supplement conventional radiography in monitoring the post-surgical healing of periapical lesions of endodontic origin.

  1. A framework for the recognition of high-level surgical tasks from video images for cataract surgeries.

    Science.gov (United States)

    Lalys, F; Riffaud, L; Bouget, D; Jannin, P

    2012-04-01

    The need for a better integration of the new generation of computer-assisted-surgical systems has been recently emphasized. One necessity to achieve this objective is to retrieve data from the operating room (OR) with different sensors, then to derive models from these data. Recently, the use of videos from cameras in the OR has demonstrated its efficiency. In this paper, we propose a framework to assist in the development of systems for the automatic recognition of high-level surgical tasks using microscope videos analysis. We validated its use on cataract procedures. The idea is to combine state-of-the-art computer vision techniques with time series analysis. The first step of the framework consisted in the definition of several visual cues for extracting semantic information, therefore, characterizing each frame of the video. Five different pieces of image-based classifiers were, therefore, implemented. A step of pupil segmentation was also applied for dedicated visual cue detection. Time series classification algorithms were then applied to model time-varying data. Dynamic time warping and hidden Markov models were tested. This association combined the advantages of all methods for better understanding of the problem. The framework was finally validated through various studies. Six binary visual cues were chosen along with 12 phases to detect, obtaining accuracies of 94%.

  2. Design of a video capsule endoscopy system with low-power ASIC for monitoring gastrointestinal tract.

    Science.gov (United States)

    Liu, Gang; Yan, Guozheng; Zhu, Bingquan; Lu, Li

    2016-11-01

    In recent years, wireless capsule endoscopy (WCE) has been a state-of-the-art tool to examine disorders of the human gastrointestinal tract painlessly. However, system miniaturization, enhancement of the image-data transfer rate and power consumption reduction for the capsule are still key challenges. In this paper, a video capsule endoscopy system with a low-power controlling and processing application-specific integrated circuit (ASIC) is designed and fabricated. In the design, these challenges are resolved by employing a microimage sensor, a novel radio frequency transmitter with an on-off keying modulation rate of 20 Mbps, and an ASIC structure that includes a clock management module, a power-efficient image compression module and a power management unit. An ASIC-based prototype capsule, which measures Φ11 mm × 25 mm, has been developed here. Test results show that the designed ASIC consumes much less power than most of the other WCE systems and that its total power consumption per frame is the least. The image compression module can realize high near-lossless compression rate (3.69) and high image quality (46.2 dB). The proposed system supports multi-spectral imaging, including white light imaging and autofluorescence imaging, at a maximum frame rate of 24 fps and with a resolution of 400 × 400. Tests and in vivo trials in pigs have proved the feasibility of the entire system, but further improvements in capsule control and compression performance inside the ASIC are needed in the future.

  3. Interventional video tomography

    Science.gov (United States)

    Truppe, Michael J.; Pongracz, Ferenc; Ploder, Oliver; Wagner, Arne; Ewers, Rolf

    1995-05-01

    Interventional Video Tomography (IVT) is a new imaging modality for Image Directed Surgery to visualize in real-time intraoperatively the spatial position of surgical instruments relative to the patient's anatomy. The video imaging detector is based on a special camera equipped with an optical viewing and lighting system and electronic 3D sensors. When combined with an endoscope it is used for examining the inside of cavities or hollow organs of the body from many different angles. The surface topography of objects is reconstructed from a sequence of monocular video or endoscopic images. To increase accuracy and speed of the reconstruction the relative movement between objects and endoscope is continuously tracked by electronic sensors. The IVT image sequence represents a 4D data set in stereotactic space and contains image, surface topography and motion data. In ENT surgery an IVT image sequence of the planned and so far accessible surgical path is acquired prior to surgery. To simulate the surgical procedure the cross sectional imaging data is superimposed with the digitally stored IVT image sequence. During surgery the video sequence component of the IVT simulation is substituted by the live video source. The IVT technology makes obsolete the use of 3D digitizing probes for the patient image coordinate transformation. The image fusion of medical imaging data with live video sources is the first practical use of augmented reality in medicine. During surgery a head-up display is used to overlay real-time reformatted cross sectional imaging data with the live video image.

  4. Value of video-assisted thoracoscopic surgery in the diagnosis and treatment of pulmonary tuberculoma: 53 cases analysis and review of literature

    Institute of Scientific and Technical Information of China (English)

    Kun-Yen HSU; Hwa-Chan LEE; Chien-Chih OU; Shi-ping LUH

    2009-01-01

    Tuberculoma of the lung is one of manifestations in tuberculosis and usually presents as a solitary pulmonary nodule (SPN). It is difficult to differentiate tuberculoma from SPN by other benign or malignant diseases. At present, the crucial role of video-assisted thoracoscopic surgery (VATS) in diagnosis and treatment of pulmonary diseases has been well acknowledged. Here, we reported 53 patients undergoing VATS resection for tuberculomas in our series. No postoperative mortality was found and only two patients experienced prolonged air-leakage (>7 d) and two had minor wound infections that were recovered after anti-tuberculosis or antibiotic treatment. Anti-tuberculosis chemotherapy from 6 to 12 months was routinely used postoperatively. We conclude that VATS is a satisfactory tool for the diagnosis and treatment of tuberculoma and can also establish a reliable diagnosis for all patients with SPNs.

  5. Port-site implantation of Type A Masaoka Stage I thymoma after video-assisted thoracic surgery: a case report.

    Science.gov (United States)

    Nose, Naohiro; Higuchi, Kazuhiro; Chosa, Eiichi; Ayabe, Takanori; Tomita, Masaki; Nakamura, Kunihide

    2016-01-01

    A 60-year-old woman was referred to our hospital with an anterior mediastinal tumor measuring 3.5 cm in diameter on computed tomography (CT). We performed tumor resection by video-assisted thoracic surgery (VATS) with three ports. The final diagnosis was Type A Masaoka Stage I thymoma. On follow-up CT performed 36 months after the operation, two pleural tumors were detected at the port sites through which the forceps and ultrasonic scalpel had passed repeatedly during the operation. We therefore performed a second operation and enucleated the tumors while preserving the ribs. However, other tumor tissue was detected along the surgical marginal line during the pathological diagnosis after the operation. Surgeons should thus be aware that port-site recurrence can occur after VATS resection of Type A thymoma, despite its mild biological behavior. Wide resection of the chest wall is therefore recommended for operations of port-site recurrence after VATS thymectomy.

  6. Is video-assisted thoracoscopic surgery talc pleurodesis superior to talc pleurodesis via tube thoracostomy in patients with secondary spontaneous pneumothorax?

    Science.gov (United States)

    Elsayed, Hany Hasan; Hassaballa, Aly; Ahmed, Taha

    2016-09-01

    A best evidence topic in thoracic surgery was written according to a structured protocol. The question addressed was [in patients with secondary spontaneous pneumothorax (SSP)] is [video-assisted thoracoscopic surgery talc pleurodesis] superior to [talc pleurodesis through tube thoracostomy] in terms of [absence of recurrence and procedure morbidity]? Seventy-three papers were found using the reported search. In looking through our search strategy, we selected studies comparing both procedures and studies performing either procedures and stating their outcome, morbidity mortality and rate of recurrence. Hence, six studies and one society guideline represented the best evidence to answer the clinical question. The authors, journal, date, patient group studied, study type, relevant outcomes and results of these papers are tabulated. Only one study compared both techniques and showed a higher length of hospital stay (14.2 vs 10.6 days; P = 0.033), higher rate of recurrence (30 vs 4.5%; P = 0.016) and higher mortality (5 vs 0%; P = 0.280) with tube thoracostomy talc pleurodesis in comparison with video-assisted thoracoscopic surgery (VATS) talc pleurodesis. Two studies looked at talc pleurodesis via tube thoracostomy (TT) alone for patients with secondary spontaneous pneumothorax (SSP). Talc pleurodesis was associated with an immediate success rate of 78.1 and 78.6%, with a short-term recurrence rate of 21.9 and 21.4%. No mortality was recorded in any study, but 1 patient (1.6%) in one study suffered from respiratory distress. No long follow-up periods were available in both studies; hence, there is no recording of long-term recurrence. Three studies looked at VATS talc pleurodesis alone in SSP patients. The procedure was associated with higher immediate success rates (90-100%) than TT pleurodesis alone with lower recurrence rates (0-10%). Average hospital stay was in the range of 3-4.7 days. Follow-up periods were 18, 22.7 and 24 months with recurrence rate ranging

  7. 基于Android平台的远程视频监控系统研究%Research on remote video monitoring system based on Android

    Institute of Scientific and Technical Information of China (English)

    杨军

    2015-01-01

    随着中国移动互联网的快速发展,基于移动平台的视频监控凭借其独特的优越性开始进入人们的视野.智能手机终端的普及为移动视频监控提供了承载终端,3G通信网络的发展为移动视频监控数据的传输提供了保证,它们都为实现移动视频监控提供了有利条件.本课题是横向课题"大连****信号发射机远程控制系统"中的远程视频监控子系统的重要组成部分,提出了一种基于Android移动设备的远程监控系统解决方案.%With therapid development of China Mobile Internet,video surveillance based on mobile platform has entered people's perspective with its unique advantages..The popularity of smart mobile terminals for mobile video monitoring provides bearing a terminal,the development of 3G mobile communication network for mobile video monitoring data transmission to provide a guarantee,they both realize mobile video monitoring provides favorable conditions.The topic is the horizontal subject "Dalian * * * * signal transmitter remote control system of remote video surveillance system an important component of the proposed a solution of remote monitoring system based on the Android mobile devices.

  8. Noncontact laser sensing technology for structural health monitoring and nondestructive testing (presentation video)

    Science.gov (United States)

    Sohn, Hoon

    2014-03-01

    Noncontact sensing techniques is gaining prominence for structural health monitoring (SHM) and nondestructive testing (NDT) due to (1) their noncontact and nonintrusive natures, (2) their spatial resolution much higher than conventional discrete sensors can achieve, (3) their less dependency on baseline data obtained from the pristine condition of a target structure (reference-free diagnosis), (4) cost and labor reduction in sensor installation and maintenance. In this talk, a suite of noncontact sensing techniques particularly based on laser technology will be presented for SHM and NDT of aircraft, wind turbine blades, high-speed trains, nuclear power plants, bridges, automobile manufacturing facilities and semiconductors.

  9. Microbial air monitoring in the operating theatres of Salam Center for Cardiac Surgery in Khartoum (Sudan

    Directory of Open Access Journals (Sweden)

    Margherita Scapaticci

    2012-06-01

    Full Text Available The seriousness of postoperative infections and the increased susceptibility of patients undergoing cardiac surgery increase the demand for the operating theatre (OT asepsis to prevent bacterial infections. In fact, the organisms carried by the air reach the wound after having sedimented onto sterile field. The air represents a critical point for quality control of air filtration systems, for sanitization procedures and for the evolution of hygienic features of the OT environment.Aim of the study is to evaluate the prevalence of microorganisms found in the operating rooms (OR air monitoring in the Salam Center for Cardiac Surgery of Khartoum (Sudan between July 2008 and March 2009.The specimens were collected every month in two different times: “OR at rest” (after sanitization and “OR operational”, using sedimentation method (Fisher 1972. Results showed that each sample collected at rest had IMA (index of microbial air contamination < 5CFU/plt, whereas the bacterial growth was between 25 and 50 CFU/plt when the samples had been collected in the same places during operating activities.This indicate the effectiveness of sanitization procedures and confirm that people working in OT are an important source of bacteria causing postoperative infections. Coagulase negative Staphylococci, Gram negative bacillus and Staphylococcus aureus spp. were the predominant organisms isolated.

  10. [Outcomes of home monitoring after palliative cardiac surgery in infants with congenital heart disease].

    Science.gov (United States)

    Kim, Sang Wha; Uhm, Ju Yeon; Im, Yu Mi; Yun, Tae Jin; Park, Jeong Jun; Park, Chun Soo

    2014-04-01

    Common conditions, such as dehydration or respiratory infection can aggravate hypoxia and are associated with interstage mortality in infants who have undergone palliative surgery for congenital heart diseases. This study was done to evaluate the efficacy of a home monitoring program (HMP) in decreasing infant mortality. Since its inception in May 2010, all infants who have undergone palliative surgery have been enrolled in HMP. This study was a prospective observational study and infant outcomes during HMP were compared with those of previous comparison groups. Parents were trained to measure oxygen saturation, body weight and feeding volume and to contact the hospital through the hotline for emergency situations. Telephone counseling was conducted by clinical nurse specialists every week post discharge. Forty-one infants were enrolled in HMP. Nine hundred telephone counseling sessions were conducted. Seventy-three infants required telephone triage with the most common conditions being gastrointestinal (50.7%) and respiratory symptoms (32.9%). With HMP intervention, interstage mortality decreased from 18.6% (8/43) to 9.8% (4/41) (χ²=1.15, p=.283). Results indicate that active measures and treatments using the HMP decrease mortality rates, however further investigation is required to identify various factors that contribute to hemodynamic complications during the interstage period.

  11. Applications for a hybrid operating room in thoracic surgery: from multidisciplinary procedures to --image-guided video-assisted thoracoscopic surgery.

    Science.gov (United States)

    Terra, Ricardo Mingarini; Andrade, Juliano Ribeiro; Mariani, Alessandro Wasum; Garcia, Rodrigo Gobbo; Succi, Jose Ernesto; Soares, Andrey; Zimmer, Paulo Marcelo

    2016-01-01

    The concept of a hybrid operating room represents the union of a high-complexity surgical apparatus with state-of-the-art radiological tools (ultrasound, CT, fluoroscopy, or magnetic resonance imaging), in order to perform highly effective, minimally invasive procedures. Although the use of a hybrid operating room is well established in specialties such as neurosurgery and cardiovascular surgery, it has rarely been explored in thoracic surgery. Our objective was to discuss the possible applications of this technology in thoracic surgery, through the reporting of three cases. RESUMO O conceito de sala híbrida traduz a união de um aparato cirúrgico de alta complexidade com recursos radiológicos de última geração (ultrassom, TC, radioscopia e/ou ressonância magnética), visando a realização de procedimentos minimamente invasivos e altamente eficazes. Apesar de bem estabelecido em outras especialidades, como neurocirurgia e cirurgia cardiovascular, o uso da sala hibrida ainda é pouco explorado na cirurgia torácica. Nosso objetivo foi discutir as aplicações e as possibilidades abertas por essa tecnologia na cirurgia torácica através do relato de três casos.

  12. Indoor 3D Video Monitoring Using Multiple Kinect Depth-Cameras

    Directory of Open Access Journals (Sweden)

    M. Martínez-Zarzuela

    2014-02-01

    Full Text Available This article describes the design and development of a system for remote indoor 3D monitoring using an undetermined number of Microsoft® Kinect sensors. In the proposed client-server system, the Kinect cameras can be connected to different computers, addressing this way the hardware limitation of one sensor per USB controller. The reason behind this limitation is the high bandwidth needed by the sensor, which becomes also an issue for the distributed system TCP/IP communications. Since traffic volume is too high, 3D data has to be compressed before it can be sent over the network. The solution consists in selfcoding the Kinect data into RGB images and then using a standard multimedia codec to compress color maps. Information from different sources is collected into a central client computer, where point clouds are transformed to reconstruct the scene in 3D. An algorithm is proposed to merge the skeletons detected locally by each Kinect conveniently, so that monitoring of people is robust to self and inter-user occlusions. Final skeletons are labeled and trajectories of every joint can be saved for event reconstruction or further analysis.

  13. Early diagnosis of pyridoxine-dependent epilepsy: video-EEG monitoring and biochemical and genetic investigation.

    Science.gov (United States)

    Ville, Dorothée; Ginguene, Carole; Marignier, Stéphanie; des Portes, Vincent; de Bellescize, Jullita

    2013-11-01

    Pyridoxine-dependent epilepsy (PDE) is a rare autosomal recessive metabolic disease. A delay of treatment may affect outcome and early initiation of pyridoxine based on effective diagnosis is crucial to ensure good cognitive outcome in neonates. A consensus for the diagnosis of PDE is based on refractive seizures and responsiveness to pyridoxine, however, a growing body of evidence suggests that additional elements should be considered which include biochemical data, genetic screening, and EEG monitoring. We present a case study of a neonate with PDE, who presented with misleading clinical presentation and a novel mutation in the antiquitin (ALDH7A1) gene (A294V), and highlight important aspects in order to consider the definition of diagnosis and management of PDE in the light of more recent data.

  14. Lane Detection in Video-Based Intelligent Transportation Monitoring via Fast Extracting and Clustering of Vehicle Motion Trajectories

    Directory of Open Access Journals (Sweden)

    Jianqiang Ren

    2014-01-01

    Full Text Available Lane detection is a crucial process in video-based transportation monitoring system. This paper proposes a novel method to detect the lane center via rapid extraction and high accuracy clustering of vehicle motion trajectories. First, we use the activity map to realize automatically the extraction of road region, the calibration of dynamic camera, and the setting of three virtual detecting lines. Secondly, the three virtual detecting lines and a local background model with traffic flow feedback are used to extract and group vehicle feature points in unit of vehicle. Then, the feature point groups are described accurately by edge weighted dynamic graph and modified by a motion-similarity Kalman filter during the sparse feature point tracking. After obtaining the vehicle trajectories, a rough k-means incremental clustering with Hausdorff distance is designed to realize the rapid online extraction of lane center with high accuracy. The use of rough set reduces effectively the accuracy decrease, which results from the trajectories that run irregularly. Experimental results prove that the proposed method can detect lane center position efficiently, the affected time of subsequent tasks can be reduced obviously, and the safety of traffic surveillance systems can be enhanced significantly.

  15. [Anesthesia management of geriatric patients with arterial pressure-based cardiac output monitoring FloTrac sensor for emergency surgery].

    Science.gov (United States)

    Yamamoto, Shunsuke; Goto, Koji; Yasuda, Norihisa; Kusaka, Junya; Hidaka, Seigo; Miyakawa, Hiroshi; Noguchi, Takayuki

    2009-06-01

    In cases of emergency surgery for geriatric patients, immediate anesthesia induction and careful intraoperative management is necessary without sufficient preoperative information. We report anesthesia management of a 96-year and a 90-year old patients with FloTrac sensor which is an arterial pressure-based cardiac output monitoring device and is able to manage critical patients effectively and safely during anesthesia.

  16. Usefulness of intraoperative monitoring of visual evoked potentials in transsphenoidal surgery.

    Science.gov (United States)

    Kamio, Yoshinobu; Sakai, Naoto; Sameshima, Tetsuro; Takahashi, Goro; Koizumi, Shinichiro; Sugiyama, Kenji; Namba, Hiroki

    2014-01-01

    Postoperative visual outcome is a major concern in transsphenoidal surgery (TSS). Intraoperative visual evoked potential (VEP) monitoring has been reported to have little usefulness in predicting postoperative visual outcome. To re-evaluate its usefulness, we adapted a high-power light-stimulating device with electroretinography (ERG) to ascertain retinal light stimulation. Intraoperative VEP monitoring was conducted in TSSs in 33 consecutive patients with sellar and parasellar tumors under total venous anesthesia. The detectability rates of N75, P100, and N135 were 94.0%, 85.0%, and 79.0%, respectively. The mean latencies and amplitudes of N75, P100, and N135 were 76.8 ± 6.4 msec and 4.6 ± 1.8 μV, 98.0 ± 8.6 msec and 5.0 ± 3.4 μV, and 122.1 ± 16.3 msec and 5.7 ± 2.8 μV, respectively. The amplitude was defined as the voltage difference from N75 to P100 or P100 to N135. The criterion for amplitude changes was defined as a > 50% increase or 50% decrease in amplitude compared to the control level. The surgeon was immediately alerted when the VEP changed beyond these thresholds, and the surgical manipulations were stopped until the VEP recovered. Among the 28 cases with evaluable VEP recordings, the VEP amplitudes were stable in 23 cases and transiently decreased in 4 cases. In these 4 cases, no postoperative vision deterioration was observed. One patient, whose VEP amplitude decreased without subsequent recovery, developed vision deterioration. Intraoperative VEP monitoring with ERG to ascertain retinal light stimulation by the new stimulus device was reliable and feasible in preserving visual function in patients undergoing TSS.

  17. Single-incision versus conventional three-port video-assisted surgery in the treatment of pneumothorax: a systematic review and meta-analysis.

    Science.gov (United States)

    Yang, Yanlong; Dong, Junjie; Huang, Yunchao

    2016-11-01

    Single-incision thoracoscopic surgery (SITS) has been applied in the treatment of pneumothorax. To establish the feasibility of SITS in comparison with conventional three-port video-assisted thoracoscopic surgery (3P-VATS), we conducted this meta-analysis. Relevant studies were searched in PubMed, Cochrane Library, SpringerLink and ScienceDirect. Studies that compared the outcomes between SITS and 3P-VATS were included for analysis. Nine eligible studies with 768 participants were included. Our analysis indicates that when compared with 3P-VATS, SITS was associated with less postoperative pain (weight mean difference, WMD = -0.67, 95% confidence interval, CI = -1.11 to -0.22, P = 0.004 for postoperative pain at 24 h; WMD = -0.62, 95% CI = -1.11 to -0.12, P = 0.01 for postoperative pain at 72 h), lower paraesthesia rate (odds ratio, OR = 0.09, 95% CI = 0.04-0.21, P = 0.01) and shorter hospital stay (WMD = -0.34 days, 95% CI = -0.60 to -0.08, P = 0.01). No significant association was found in operative time, mean duration of chest tube, complications and recurrence rates. SITS was a safe and efficient procedure for the treatment of pneumothorax with less postoperative pain and faster recovery. The complication and recurrence rates were equivalent when compared with 3P-VATS. © The Author 2016. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.

  18. Rapid Motion Estimation Algorithm for Embedded Video Monitor System%嵌入式视频监控系统的快速运动估计算法

    Institute of Scientific and Technical Information of China (English)

    刘国繁; 曹少坤; 彭铁钢

    2009-01-01

    Motion estimation of time-consuming brings great difficulties to real-time video encoding. In order to improve monitoring of real-time video encoding, a rapid motion estimation algorithm for embedded video monitoring system is proposed. Based on the characteristics of a relatively fixed monitoring background, the algorithm uses multi-criteria of early stop, predicts search starting point through vector movement relatively characteristics of time and space, finally, uses improved rood search pattern starting search. Experiment shows that the algorithm has better search rate than adaptive rood search algorithm with slight PSNR decrease, matches the real-time priority principle in embedded video monitoring system.%耗时的运动估计运算给实时视频编码带来较大困难,为提高监控视频编码的,实时性,提出一种用于嵌入式视频监控系统的快速运动估计算法.该算法根据监控背景相对固定的特点,使用多层提前终止准则,通过运动矢量时空相关性的特性来预测搜索起点,采崩改进型的十字搜索模板进行搜索.实验表明,与自适应十字搜索算法相比,该算法在平均峰值信噪比略有下降的情况下,搜索速度得到提升,符合嵌入式视频监控的实时性优先原则.

  19. Value of Free-Run Electromyographic Monitoring of Extraocular Cranial Nerves during Expanded Endonasal Surgery (EES) of the Skull Base.

    Science.gov (United States)

    Thirumala, Parthasarathy D; Mohanraj, Santhosh Kumar; Habeych, Miguel; Wichman, Kelley; Chang, Yue-Fang; Gardner, Paul; Snyderman, Carl; Crammond, Donald J; Balzer, Jeffrey

    2013-06-01

    Objective To evaluate the value of free-run electromyography (f-EMG) monitoring of extraocular cranial nerves (EOCN) III, IV, and VI during expanded endonasal surgery (EES) of the skull base in reducing iatrogenic cranial nerve (CN) deficits. Design We retrospectively identified 200 patients out of 990 who had at least one EOCN monitored during EES. We further separated patients into groups according to the specific CN monitored. In each CN group, we classified patients who had significant (SG) f-EMG activity as Group I and those who did not as Group II. Results A total of 696 EOCNs were monitored. The number of muscles supplied by EOCNs that had SG f-EMG activity was 88, including CN III = 46, CN IV = 21, and CN VI = 21. There were two deficits involving CN VI in patients who had SG f-EMG activity during surgery. There were 14 deficits observed, including CN III = 3, CN IV = 2, and CN VI = 9 in patients who did not have SG f-EMG activity during surgery. Conclusions f-EMG monitoring of EOCN during EES can be useful in identifying the location of the nerve. It seems to have limited value in predicting postoperative neurological deficits. Future studies to evaluate the EMG of EOCN during EES need to be done with both f-EMG and triggered EMG.

  20. Monitoring system of digital video forensics based on cloud computing platform%基于云计算的视频取证监控系统

    Institute of Scientific and Technical Information of China (English)

    彭召意; 周玉; 文志强

    2011-01-01

    During the digital video forensies, facing the defects of multi-cameras in non-cooperative mode and the problems of massive video data and complex computational evidence, this paper presented a solution which about a monitoring system of digital video forensies based on cloud computing, in this program, each camera worked in a cooperative manner, and the video data in monitoring system was stored in the cloud computing system, in which the cloud computing platform could provide the video monitoring services the terminal users needed, and also provided the complex calculations of target identification and target tracking and others during the evidence collecting. The system could take full advantage of virtual storage and virtual computing capabilities of cloud computing platform to improve the ability of collaborative working of on-site multi-cameras, to increase the efficiency and accuracy of the video forensies and to improve the monitoring flexibility and convenience for various terminal users.%在视频取证过程中,面对多摄像头非协作工作方式的视频取证的缺陷以及海量的视频数据和复杂的取证计算问题,提出了一种基于云计算的视频取证监控系统的解决方案.在该方案中,各摄像头采用协作工作方式,监控系统中的视频数据保存在云计算系统中,终端用户需要的视频监控服务由云计算平台来提供,取证过程中的目标识别和跟踪等复杂计算也由云计算平台提供.该系统可以充分利用云计算平台的虚拟存储和虚拟计算能力,解决取证现场的多摄像头的协作工作能力,提高视频取证的处理效率和取证的准确性以及提高各种终端用户的监控灵活性和方便性.

  1. Research and Implementation of Remote Video Monitoring System Based on OMAP%基于OMAP远程视频监控系统的研究与实现

    Institute of Scientific and Technical Information of China (English)

    陈晓霜; 吴蒙

    2015-01-01

    文中提出了一种基于TI的OMAP4460多媒体平台,利用V4L2视频采集框架,结合H.264压缩编码技术,采用RTSP流媒体技术实现远程视频监控系统的解决方案。通过软硬件平台的搭建,对视频原始数据采集过程的分析和实时视频网络传输的实现,文中较全面地展示了远程视频监控系统的实现过程。通过实际运行验证了该嵌入式远程监控系统的可行性。系统测试结果表明,该系统能够及时准确地采集现场视频图像信息,并通过以太网将采集到的数据远程实时传输,在客户端实时显示,具有实时、稳定的特点,满足了实时数据传输和远程监测的需求。%A kind of solution based on TI OMAP4460 multimedia platform is put forward,making full use of the V4L2 video collection framework,combined with H. 264 compression coding technology and adopted RTSP streaming technology to realize the remote video monitoring system. Through the construction of the software platform and hardware platform,the analysis of the original video data acqui-sition process and the realization of real-time video remote transmission,comprehensively show the implementation of the network video monitoring system. The experiment has verified the feasibility of the embedded remote monitoring and control system. Results show that the system can collect the live video information timely and accurately,besides,the collected data can be transmitted through the Ethernet to client successfully. The real-time and stability of the system meets the needs of real-time data transmission and remote monitoring.

  2. Trans-axillary retro-mammary gland route approach of video-assisted breast surgery can perform breast conserving surgery for cancers even in inner side of the breast

    Institute of Scientific and Technical Information of China (English)

    Koji Yamashita; Kazuo Shimizu

    2008-01-01

    Background The endoscopic surgery for inner-side cancer of the breast is usually performed by periareolar approach,but it often makes deformation or malposition of nipple and areola. The trans-axillary approach is favorable without making any injuries on breast skin. Furthermore, we devised a new approach of retro-mammary route without subcutaneous exfoliation, from axillary skin incision, to preserve skin touch sensation.Methods We have performed video-assisted breast surgery (VABS) on 200 patients since December 2001. The newly devised trans-axillary retromammary-route approach (TARM) was performed on 12 patients of early breast cancer. After endoscopic sentinel lymph node biopsy, we lengthened the axillary skin incision to 2.5 cm, and dissected retromammary tissue from superficial pectoral fascia onto major pectoral muscle below the tumor. The working space was made by lifting traction sutures through the gland. We cut the gland vertically at free margin 2 cm apart from the tumor edge, and dissect skin flap over the tumor. The breast reconstruction was done by filling absorbable fiber cotton.Results Traction sutures made it easier to cut the mammary gland vertically. We did not experience any skin damages like bum. All surgical margins were negative. The operation time was needed longer but the blood loss was not different.The postoperative esthetic results were good. The sensory disturbance was minimal. All patients were satisfied with this operation.Conclusion This newly devised TARM approach need no injury on whole breast, and can become a single standard method for breast conserving surgery wherever the cancer situated.

  3. Postoperative monitoring in pregnant patients undergoing surgery for advanced malignancy in last trimester: How long is enough?

    Directory of Open Access Journals (Sweden)

    Arushi Gupta

    2014-01-01

    Full Text Available Surgery for advanced breast malignancy in the last trimester of pregnancy is uncommon. We present successful management of a 32-year-old woman, 30 weeks pregnant with stage 3 breast malignancy, for surgery followed by normal labor and chemotherapy. Surgery and intraoperative period were uneventful. Patient had uterine contractions 36 h postsurgery, which were managed timely with active interventions and tocolytics. Risk of premature labor following nonobstetric surgery in pregnant patients is estimated to be 8.3%, but majority of the studies have been carried out in second trimester following appendectomy. There is insufficient data in literature regarding the estimation and duration of persistence of risk of premature labor in these patients. No guidelines are available regarding how long they need to be monitored for premature labor. There is some evidence, although little that risk of premature labor persists for 7 days postsurgery. In the absence of convincing studies and guidelines, we recommend postoperative monitoring for at least 7 days in patients undergoing major surgeries for malignancies in last trimester. Multidisciplinary approach is required to manage these patients.

  4. Beyond Sociocultural Influence: Self-monitoring and Self-awareness as Predictors of Women's Interest in Breast Cosmetic Surgery.

    Science.gov (United States)

    Matera, Camilla; Nerini, Amanda; Giorgi, Claudia; Baroni, Duccio; Stefanile, Cristina

    2015-06-01

    The aim of the present research was to analyze the role of self-awareness, self-monitoring, perceived media pressures, and peer attributions on the consideration of breast cosmetic surgery among women. The internalization of thin ideals was taken into account as a key moderating variable. Participants were 132 Italian women (mean age = 33.62), who completed a questionnaire aimed at measuring the variables of interest. Path analysis was used to test our hypotheses. The results indicated that perceived media pressure, self-monitoring, and peer attributions influenced participants' interest in breast modification procedures through the internalization of thin ideals. Self-awareness (both private and public) had a direct effect on women's consideration of breast cosmetic surgery. This research is one of few analyzing how specific aspects of the self could influence women's interest in cosmetic surgery. These findings contribute to the understanding of the reasons that trigger women's interest in cosmetic surgery. Not only sociocultural influences contribute to the development of favorable attitudes toward cosmetic surgery, but also specific aspects of the self have a relevant role. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the table of contents or the online Instructions to Authors www.springer.com/00266 .

  5. Relationship between plaque score and video-monitored brushing performance after repeated instruction--a controlled, randomised clinical trial.

    Science.gov (United States)

    Schlueter, N; Klimek, J; Ganss, C

    2013-03-01

    Aim of this prospective, randomised, controlled clinical trial was to use the modified bass technique (MBT) and a specific brushing sequence to investigate whether two types of instruction methods lead to differences in plaque reduction and whether plaque reduction is related to technique adoption. Ninety-eight participants were randomly assigned to three groups: (1) control, no instruction; (2) verbal instruction by means of a leaflet; and (3) verbal instruction supported by demonstration, no leaflet. Brushing performance was video monitored. Plaque score (Turesky modified QHI (T-QHI)) was measured at baseline, afterwards participants received instructions. After 2 weeks, T-QHI was measured for a second time, and participants were re-instructed. After another 2 weeks, T-QHI was measured for a third time. At baseline, T-QHI did not differ between groups ((1) 1.99 ± 0.51, (2) 1.90 ± 0.51, (3) 1.93 ± 0.56). The second measurement revealed an improvement of T-QHI in the instructed groups and in the non-instructed control group ((1) 1.80 ± 0.47, (2) 1.58 ± 0.58, (3) 1.64 ± 0.58; n.s. between groups); in the intervention groups, remotivation achieved no further improvement ((1) 1.72 ± 0.48, (2) 1.52 ± 0.58, (3) 1.50 ± 0.69; n.s. between groups and compared to second measurement). Improvement of T-QHI was not related to proper performance of technique or brushing sequence. Those who fully adopted the brushing technique, the sequence or both did not have lower plaque scores. Technical performance and effectiveness were not linked. Within the study setting, the MBT was not effective in reducing plaque scores. The general recommendation of the MBT should be re-evaluated in further studies.

  6. Evaluation of continuous non-invasive arterial pressure monitoring during induction of general anaesthesia in patients undergoing cardiac surgery.

    Science.gov (United States)

    Kumar, G Anil; Jagadeesh, A M; Singh, Naveen G; Prasad, S R

    2015-01-01

    Continuous arterial pressure monitoring is essential in cardiac surgical patients during induction of general anaesthesia (GA). Continuous non-invasive arterial pressure (CNAP) monitoring is fast gaining importance due to complications associated with the invasive arterial monitoring. Recently, a new continuous non-invasive arterial pressure device (CNAP™) has been validated perioperatively in non-cardiac surgeries. The aim of our study is to compare and assess the performance of CNAP during GA with invasive arterial pressure (IAP) in patients undergoing cardiac surgeries. Sixty patients undergoing cardiac surgery were included. Systolic, diastolic, and mean arterial pressure (MAP) data were recorded every minute for 20 min simultaneously for both IAP and CNAP™. Statistical analysis was performed using mountain plot and Bland Altman plots for assessing limits of agreement and bias (accuracy) calculation. Totally 1200 pairs of data were analysed. The CNAP™ systolic, diastolic and MAP bias was 5.98 mm Hg, -3.72 mm Hg, and - 0.02 mm Hg respectively. Percentage within limits of agreement was 96.0%, 95.2% and 95.7% for systolic, diastolic and MAP. The mountain plot showed similar results as the Bland Altman plots. We conclude CNAP™ provides real-time estimates of arterial pressure comparable to IAP during induction of GA for cardiac surgery. We recommend CNAP can be used as an alternative to IAP in situations such as cardiac patients coming for non-cardiac surgeries, cardiac catheterization procedures, positive Allen's test, inability to cannulate radial artery and vascular diseases, where continuous blood pressure monitoring is required.

  7. Monitoring respiration and oxygen saturation in patients during the first night after elective bariatric surgery: A cohort study.

    Science.gov (United States)

    Wickerts, Liselott; Forsberg, Sune; Bouvier, Frederic; Jakobsson, Jan

    2017-01-01

    Background: Obstructive sleep apnoea and obese hypoventilation is not uncommon in patients with obesity. Residuals effect from surgery/anaesthesia and opioid analgesics may worsen respiration during the first nights after bariatric surgery. The aim of this observational study was to monitor respiration on the first postoperative night following elective bariatric surgery. Methods: This observational study aimed to determine the incidence and severity of hypo/apnoea in low risk obsess patients undergoing elective bariatric surgery in general anesthaesia. Patients with known or suspected sleep respiratory disturbances was not included. ESS was scored prior to surgery. Oxygen desaturation was analyzed by continuous respiratory monitoring. Mean oxygen saturation (SpO2), nadir SPo2, apnoea/hypopnea index and oxygen desaturation index was assess by standard tools. Results: 45 patients were monitored with portable polygraphy equipment (Embletta, ResMed) during the first postoperative night at the general ward following elective laparoscopic bariatric surgery. The prop ESS was 0-5 in 22, 6-10 in 14 and 11-16 in 6 of the patients studied (missing data 3). Mean SpO2 was 93%; 10 patients had a mean SpO2 of less than 92% and 4 of less than 90%. The lowest mean SpO2 was 87%. There were 16 patients with a nadir SpO2 of less than 85%, lowest nadir SpO2 being 63%. An Apnoea Hypo/apnoea Index (AHI) > 5 was found in 2 patients only (AHI 10 and 6), and an Oxygen Desaturation index (ODI) > 5 was found in 3 patients (24, 10 and 6, respectively). 3 patients had more prolonged (> 30 seconds) apnoea with nadir SpO2 81%, 83% and 86%. ESS score and type of surgery did not impact on respiration/oxygenation during the observation period. Conclusions: A low mean SpO2 and episodes of desaturation were not uncommon during the first postoperative night following elective bariatric surgery in patients without history of night time breathing disturbance. AHI and/or ODI of more than 5 were only

  8. The Use of Smart Glasses for Surgical Video Streaming.

    Science.gov (United States)

    Hiranaka, Takafumi; Nakanishi, Yuta; Fujishiro, Takaaki; Hida, Yuichi; Tsubosaka, Masanori; Shibata, Yosaku; Okimura, Kenjiro; Uemoto, Harunobu

    2017-04-01

    Observation of surgical procedures performed by experts is extremely important for acquisition and improvement of surgical skills. Smart glasses are small computers, which comprise a head-mounted monitor and video camera, and can be connected to the internet. They can be used for remote observation of surgeries by video streaming. Although Google Glass is the most commonly used smart glasses for medical purposes, it is still unavailable commercially and has some limitations. This article reports the use of a different type of smart glasses, InfoLinker, for surgical video streaming. InfoLinker has been commercially available in Japan for industrial purposes for more than 2 years. It is connected to a video server via wireless internet directly, and streaming video can be seen anywhere an internet connection is available. We have attempted live video streaming of knee arthroplasty operations that were viewed at several different locations, including foreign countries, on a common web browser. Although the quality of video images depended on the resolution and dynamic range of the video camera, speed of internet connection, and the wearer's attention to minimize image shaking, video streaming could be easily performed throughout the procedure. The wearer could confirm the quality of the video as the video was being shot by the head-mounted display. The time and cost for observation of surgical procedures can be reduced by InfoLinker, and further improvement of hardware as well as the wearer's video shooting technique is expected. We believe that this can be used in other medical settings.

  9. Surgery versus Active Monitoring in Intermittent Exotropia (SamExo): study protocol for a pilot randomised controlled trial.

    Science.gov (United States)

    Buck, Deborah; McColl, Elaine; Powell, Christine J; Shen, Jing; Sloper, John; Steen, Nick; Taylor, Robert; Tiffin, Peter; Vale, Luke; Clarke, Michael P

    2012-10-16

    Childhood intermittent exotropia [X(T)] is a type of strabismus (squint) in which one eye deviates outward at times, usually when the child is tired. It may progress to a permanent squint, loss of stereovision and/or amblyopia (reduced vision). Treatment options for X(T) include eye patches, glasses, surgery and active monitoring. There is no consensus regarding how this condition should be managed, and even when surgery is the preferred option clinicians disagree as to the optimal timing. Reports on the natural history of X(T) are limited, and there is no randomised controlled trial (RCT) evidence on the effectiveness or efficiency of surgery compared with active monitoring. The SamExo (Surgery versus Active Monitoring in Intermittent Exotropia) pilot study has been designed to test the feasibility of such a trial in the UK. an external pilot patient randomised controlled trial. four UK secondary ophthalmology care facilities at Newcastle NHS Hospitals Foundation Trust, Sunderland Eye Infirmary, Moorfields Eye Hospital and York NHS Trust. children aged between 6 months and 16 years referred with suspected and subsequently diagnosed X(T). Recruitment target is a total of 144 children over a 9-month period, with 120 retained by 9-month outcome visit.Randomisation: permuted blocks stratified by collaborating centre, age and severity of X(T). initial clinical assessment; randomisation (eye muscle surgery or active monitoring); 3-, 6- and 9-month (primary outcome) clinical assessments; participant/proxy completed questionnaire covering time and travel costs, health services use and quality of life (Intermittent Exotropia Questionnaire); qualitative interviews with parents to establish reasons for agreeing or declining participation in the pilot trial. recruitment and retention rates; nature and extent of participation bias; nature and extent of biases arising from crossover or loss to follow-up; reasons for agreeing/declining participation; variability of cure rates

  10. Surgery versus Active Monitoring in Intermittent Exotropia (SamExo: study protocol for a pilot randomised controlled trial

    Directory of Open Access Journals (Sweden)

    Buck Deborah

    2012-10-01

    Full Text Available Abstract Background Childhood intermittent exotropia [X(T] is a type of strabismus (squint in which one eye deviates outward at times, usually when the child is tired. It may progress to a permanent squint, loss of stereovision and/or amblyopia (reduced vision. Treatment options for X(T include eye patches, glasses, surgery and active monitoring. There is no consensus regarding how this condition should be managed, and even when surgery is the preferred option clinicians disagree as to the optimal timing. Reports on the natural history of X(T are limited, and there is no randomised controlled trial (RCT evidence on the effectiveness or efficiency of surgery compared with active monitoring. The SamExo (Surgery versus Active Monitoring in Intermittent Exotropia pilot study has been designed to test the feasibility of such a trial in the UK. Methods Design: an external pilot patient randomised controlled trial. Setting: four UK secondary ophthalmology care facilities at Newcastle NHS Hospitals Foundation Trust, Sunderland Eye Infirmary, Moorfields Eye Hospital and York NHS Trust. Participants: children aged between 6 months and 16 years referred with suspected and subsequently diagnosed X(T. Recruitment target is a total of 144 children over a 9-month period, with 120 retained by 9-month outcome visit. Randomisation: permuted blocks stratified by collaborating centre, age and severity of X(T. Interventions: initial clinical assessment; randomisation (eye muscle surgery or active monitoring; 3-, 6- and 9-month (primary outcome clinical assessments; participant/proxy completed questionnaire covering time and travel costs, health services use and quality of life (Intermittent Exotropia Questionnaire; qualitative interviews with parents to establish reasons for agreeing or declining participation in the pilot trial. Outcomes: recruitment and retention rates; nature and extent of participation bias; nature and extent of biases arising from crossover or

  11. Reconstruction of a 3D surface from video that is robust to missing data and outliers: application to minimally invasive surgery using stereo and mono endoscopes.

    Science.gov (United States)

    Hu, Mingxing; Penney, Graeme; Figl, Michael; Edwards, Philip; Bello, Fernando; Casula, Roberto; Rueckert, Daniel; Hawkes, David

    2012-04-01

    Minimally invasive surgery (MIS) offers great benefits to patients compared with open surgery. Nevertheless during MIS surgeons often need to contend with a narrow field-of-view of the endoscope and obstruction from other surgical instruments. He/she may also need to relate the surgical scene to information derived from previously acquired 3D medical imaging. We thus present a new framework to reconstruct the 3D surface of an internal organ from endoscopic images which is robust to measurement noise, missing data and outliers. This can provide 3D surface with a wide field-of-view for surgeons, and it can also be used for 3D-3D registration of the anatomy to pre-operative CT/MRI data for use in image guided interventions. Our proposed method first removes most of the outliers using an outlier removal method that is based on the trilinear constraints over three images. Then data that are missing from one or more of the video images (missing data) and 3D structure are recovered using the structure from motion (SFM) technique. Evolutionary agents are applied to improve both the efficiency of data recovery and robustness to outliers. Furthermore, an incremental bundle adjustment strategy is used to refine the camera parameters and 3D structure and produce a more accurate 3D surface. Experimental results with synthetic data show that the method is able to reconstruct surfaces in the presence of feature tracking errors (up to 5 pixel standard deviation) and a large amount of missing data (up to 50%). Experiments on a realistic phantom model and in vivo data further demonstrate the good performance of the proposed approach in terms of accuracy (1.7 mm residual phantom surface error) and robustness (50% missing data rate, and 20% outliers in in vivo experiments). Copyright © 2010 Elsevier B.V. All rights reserved.

  12. Management of post-operative pain by placement of an intraoperative intercostal catheter after single port video-assisted thoracoscopic surgery: a propensity-score matched study.

    Science.gov (United States)

    Wu, Ching-Feng; Hsieh, Ming-Ju; Liu, Hung-Pin; Gonzalez-Rivas, Diego; Liu, Yun-Hen; Wu, Yi-Cheng; Chao, Yin-Kai; Wu, Ching-Yang

    2016-06-01

    The establishment of a golden standard for post-operative analgesia after thoracic surgery remains an unresolved issue. Benefiting from the rapid development of single port video-assisted thoracoscopic surgery (VATS), a good candidate for the alleviation of patients' pain is the placement of an intercostal catheter (ICC) safely after uniport VATS. We hypothesized that continual infusion through ICC could provide effective analgesia for patients with only one wound and we evaluate its postoperative analgesic function in uniport VATS patients with or without intercostal nerve blockade. Since March 2014, 235 patients received various kinds of single port VATS. We identified 50 patients who received single port VATS with intercostal nerve blockade and retrospectively compared them with a group of patients who had received single port VATS without intercostal nerve blockade. The operative time, post operation day 0, 1, 2, 3 and discharge day pain score, narcotic requirements, drainage duration and post-operative hospital stay were collected. In order to establish a well-balanced cohort study, we also used propensity scores matching (1:1) to compare the short term clinical outcome in two groups. No operative deaths occurred in this study. The uniport VATS with intercostal nerve blockade group was associated with less post operation day 0 and day 1 pain score, and narcotic requirements in our cohort study (Pintercostal nerve blockade (Pintercostal nerve block with levobupivacaine infusion appears to be a safe, effective and promising technique in our study, associated with a shorter hospital stay and less post-operative pain. Further prospective trials are needed to determine the long term outcomes.

  13. Video Transect Images from the Hawaii Coral Reef Assessment and Monitoring Program (CRAMP): Data from 2000 (NODC Accession 0000728)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of video transect images (TIF files) from CRAMP surveys taken in 2000 at 23 sites, some of which had multiple depths. Estimates of substrate...

  14. Video Transect Images from the Hawaii Coral Reef Assessment and Monitoring Program (CRAMP): Data from 2003 (NODC Accession 0001732)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of video transect images (TIF files) from CRAMP surveys taken in 2003 at 15 sites, some of which had multiple depths. Estimates of substrate...

  15. Video transect images from the Hawaii Coral Reef Assessment and Monitoring Program (CRAMP): data from year 1999 (NODC Accession 0000671)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of video transect images (JPEG files) from CRAMP surveys taken in 1999 at 26 sites, some of which had multiple depths. Estimates of substrate...

  16. Video transect images from the Hawaii Coral Reef Assessment and Monitoring Program (CRAMP): data from 2002 (NODC Accession 0000961)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of video transect images (TIF files) from CRAMP surveys taken in 2002 at 23 sites, some of which had multiple depths. Estimates of substrate...

  17. Video Transect Images from the Hawaii Coral Reef Assessment and Monitoring Program (CRAMP):Data from 2003 (NODC Accession 0001732)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of video transect images (TIF files) from CRAMP surveys taken in 2003 at 15 sites, some of which had multiple depths. Estimates of substrate...

  18. Video transect images from the Hawaii Coral Reef Assessment and Monitoring Program (CRAMP): data from 2000 (NODC Accession 0000728)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of video transect images (TIF files) from CRAMP surveys taken in 2000 at 23 sites, some of which had multiple depths. Estimates of substrate...

  19. Video Transect Images from the Hawaii Coral Reef Assessment and Monitoring Program (CRAMP): Data from 2002 (NODC Accession 0000961)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of video transect images (TIF files) from CRAMP surveys taken in 2002 at 23 sites, some of which had multiple depths. Estimates of substrate...

  20. Video Transect Images (1999) from the Hawaii Coral Reef Assessment and Monitoring Program (CRAMP) (NODC Accession 0000671)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of video transect images (JPEG files) from CRAMP surveys taken in 1999 at 26 sites, some of which had multiple depths. Estimates of substrate...

  1. Analysis of networked high-definition video monitoring system%网络化高清视频监控系统解析

    Institute of Scientific and Technical Information of China (English)

    刘先彪; 王兆宇

    2013-01-01

    The paper analyzed whole process of signal acquisition,transmission,decoding,store,display and application of networked high-definition video monitoring system of Zhundong No.2 mine from perspective of full high-definition,and focused on network resource usage of high-definition video streaming and its control method.The high-definition video monitoring system lays foundation for intuitive dispatching of production,auxiliary of mine integrated automation system,and ensuring of production safety.%从全高清的角度分析了准东二矿网络化高清视频监控系统从前端信号采集、传输、解码、存储到显示、应用的全过程,重点分析了高清视频流对网络资源的占用以及控制方法.高清视频监控系统为直观调度指挥生产、辅助矿井综合自动化系统、保障生产安全奠定了基础.

  2. An integrated multispectral video and environmental monitoring system for the study of coastal processes and the support of beach management operations

    Science.gov (United States)

    Ghionis, George; Trygonis, Vassilis; Karydis, Antonis; Vousdoukas, Michalis; Alexandrakis, George; Drakopoulos, Panos; Amdreadis, Olympos; Psarros, Fotis; Velegrakis, Antonis; Poulos, Serafim

    2016-04-01

    Effective beach management requires environmental assessments that are based on sound science, are cost-effective and are available to beach users and managers in an accessible, timely and transparent manner. The most common problems are: 1) The available field data are scarce and of sub-optimal spatio-temporal resolution and coverage, 2) our understanding of local beach processes needs to be improved in order to accurately model/forecast beach dynamics under a changing climate, and 3) the information provided by coastal scientists/engineers in the form of data, models and scientific interpretation is often too complicated to be of direct use by coastal managers/decision makers. A multispectral video system has been developed, consisting of one or more video cameras operating in the visible part of the spectrum, a passive near-infrared (NIR) camera, an active NIR camera system, a thermal infrared camera and a spherical video camera, coupled with innovative image processing algorithms and a telemetric system for the monitoring of coastal environmental parameters. The complete system has the capability to record, process and communicate (in quasi-real time) high frequency information on shoreline position, wave breaking zones, wave run-up, erosion hot spots along the shoreline, nearshore wave height, turbidity, underwater visibility, wind speed and direction, air and sea temperature, solar radiation, UV radiation, relative humidity, barometric pressure and rainfall. An innovative, remotely-controlled interactive visual monitoring system, based on the spherical video camera (with 360°field of view), combines the video streams from all cameras and can be used by beach managers to monitor (in real time) beach user numbers, flow activities and safety at beaches of high touristic value. The high resolution near infrared cameras permit 24-hour monitoring of beach processes, while the thermal camera provides information on beach sediment temperature and moisture, can

  3. Computed tomography guided percutaneous injection of a mixture of lipiodol and methylene blue in rabbit lungs: evaluation of localization ability for video-assisted thoracoscopic surgery.

    Science.gov (United States)

    Jin, Kwang Nam; Lee, Kyung Won; Kim, Tae Jung; Song, Yong Sub; Kim, Dong Il

    2014-01-01

    Preoperative localization is necessary prior to video assisted thoracoscopic surgery for the detection of small or deeply located lung nodules. We compared the localization ability of a mixture of lipiodol and methylene blue (MLM) (0.6 mL, 1:5) to methylene blue (0.5 mL) in rabbit lungs. CT-guided percutaneous injections were performed in 21 subjects with MLM and methylene blue. We measured the extent of staining on freshly excised lung and evaluated the subjective localization ability with 4 point scales at 6 and 24 hr after injections. For MLM, radio-opacity was evaluated on the fluoroscopy. We considered score 2 (acceptable) or 3 (excellent) as appropriate for localization. The staining extent of MLM was significantly smaller than methylene blue (0.6 vs 1.0 cm, Pmethylene blue (2.8 vs 2.2, P=0.010). Excellent staining was achieved in 17 subjects (81%) with MLM and 8 (38%) with methylene blue (P=0.011). An acceptable or excellent radio-opacity of MLM was found in 13 subjects (62%). An appropriate localization rate of MLM was 100% with the use of the directly visible ability and radio-opacity of MLM. MLM provides a superior pulmonary localization ability over methylene blue.

  4. Reduce chest pain using modified silicone fluted drain tube for chest drainage after video-assisted thoracic surgery (VATS) lung resection

    Science.gov (United States)

    Li, Xin; Hu, Bin; Miao, Jinbai

    2016-01-01

    Background The aim of this study was to assess the feasibility, efficacy and safety of a modified silicone fluted drain tube after video-assisted thoracic surgery (VATS) lung resection. Methods The prospective randomized study included 50 patients who underwent VATS lung resection between March 2015 and June 2015. Eligible patients were randomized into two groups: experimental group (using the silicone fluted drain tubes for chest drainage) and control group (using standard drain tubes for chest drainage). The volume and characteristics of drainage, postoperative (PO) pain scores and hospital stay were recorded. All patients received standard care during hospital admission. Results In accordance with the exit criteria, three patients were excluded from study. The remaining 47 patients included in the final analysis were divided into two groups: experiment group (N=24) and control group (N=23). There was no significant difference between the two groups in terms of age, sex, height, weight, clinical diagnosis and type of surgical procedure. There was a trend toward less PO pain in experimental group on postoperative day (POD) 1, with a statistically significant difference. Patients in experimental group had a reduced occurrence of fever [temperature (T) >37.4 °C] compared to the control group. Conclusions The silicone fluted drain tube is feasible and safe and may relieve patient PO pain and reduce occurrence of fever without the added risk of PO complications. PMID:26941976

  5. Combination of subxiphoid and intercostal uniportal video-assisted thoracoscopic surgery for bilateral lung lesions: report of two cases and review of the literature.

    Science.gov (United States)

    Wang, Linlin; Ge, Lihui; Yang, Xueying

    2017-06-01

    Uniportal video-assisted thoracic surgery (VATS) is carried out to reduce postoperative pain after treatment of thoracic diseases. Here, we report a novel method that combines a subxiphoid and intercostal uniportal VATS approach that can be used to treat bilateral pulmonary lesions simultaneously. The first case is a 50-year-old female with bilateral pulmonary lesions who received left lower lobectomy associated with right middle lobe wedge resection synchronously; the other case is a 14-year-old male who was admitted for resection of bilateral lung metastases as a result of previous osteosarcoma. We combined a subxiphoid approach with intercostal uniportal surgical procedure for bilateral pulmonary lesions. Less postoperative pain, faster postoperative recovery, and a better aesthetic effect are possible superiorities of this method if patients are selected carefully. Our results show that the combining of a subxiphoid approach with intercostal uniportal VATS is a feasible and efficient surgical procedure for bilateral pulmonary lesions, with good outcomes. Moreover, this procedure is more suitable for patients with bilateral pulmonary lesions.

  6. Carbon dioxide monitoring during laparoscopic-assisted bariatric surgery in severely obese patients: transcutaneous versus end-tidal techniques.

    Science.gov (United States)

    Dion, Joanna M; McKee, Chris; Tobias, Joseph D; Herz, Daniel; Sohner, Paul; Teich, Steven; Michalsky, Marc

    2015-02-01

    Various factors including severe obesity or increases in intra-abdominal pressure during laparoscopy can lead to inaccuracies in end-tidal carbon dioxide (PETCO2) monitoring. The current study prospectively compares ET and transcutaneous (TC) CO2 monitoring in severely obese adolescents and young adults during laparoscopic-assisted bariatric surgery. Carbon dioxide was measured with both ET and TC devices during insufflation and laparoscopic bariatric surgery. The differences between each measure (PETCO2 and TC-CO2) and the PaCO2 were compared using a non-paired t test, Fisher's exact test, and a Bland-Altman analysis. The study cohort included 25 adolescents with a mean body mass index of 50.2 kg/m2 undergoing laparoscopic bariatric surgery. There was no difference in the absolute difference between the TC-CO2 and PaCO2 (3.2±3.0 mmHg) and the absolute difference between the PETCO2 and PaCO2 (3.7±2.5 mmHg). The bias and precision were 0.3 and 4.3 mmHg for TC monitoring versus PaCO2 and 3.2 and 3.2 mmHg for ET monitoring versus PaCO2. In the young severely obese population both TC and PETCO2 monitoring can be used to effectively estimate PaCO2. The correlation of PaCO2 to TC-CO2 is good, and similar to the correlation of PaCO2 to PETCO2. In this population, both of these non-invasive measures of PaCO2 can be used to monitor ventilation and minimize arterial blood gas sampling.

  7. Uniportal video-assisted thoracic surgery for left upper lobe: single-direction lobectomy with systematic lymphadenectomy.

    Science.gov (United States)

    Feng, Mingxiang; Lin, Miao; Shen, Yaxin; Wang, Hao

    2016-08-01

    A 62-year-old female was admitted to our hospital after computed tomography (CT) revealed a 2.5 cm × 2.1 cm mass in the left upper lobe. PET/CT scan diagnosed as malignant lesion with no signs of metastasis. Under general anesthesia, the patient was placed in right lateral decubitus position. A 4cm incision was made in the 4th intercostal space with plastic protector. The camera was placed in the upper part of the incision and the instruments were inserted below the camera. Left upper lobectomy along with systematic lymphadenectomy was performed. Total surgical time was 135 min and estimated blood loss was 70 mL. The chest tube was removed on the 2nd postoperative day and the patient was discharged on the 3rd postoperative day with no complication. This uniportal VATS single-direction lobectomy for the left upper lobe is feasible and amplifies the concept of thoracotomy-like minimally invasive surgery.

  8. Video-EEG Monitoring Artifact: Causes and Strategies%视频脑电监测伪差原因分析及对策研究

    Institute of Scientific and Technical Information of China (English)

    魏蕤荭; 马全有; 刘麦仙

    2013-01-01

    Objective To explore the causes of video - EEG monitoring artifacts and propose preventive measures. Methods The video - EEG monitoring results of 563 cases between October 2010 and October 2011 were analyzed. Results Artifacts occurred in 104 out of 563 cases. The causes of artifacts consisted of ECG artifact ( 15 cases, 14.4% ), baseline instability ( 31 cases, 29.8%), body movements ( 33 cases, 31.7%), static artifacts ( 22 cases, 21.2%), and operation artifacts ( 3 cases, 2. 9% ). Conclusion EEG monitoring training for nurses, health education for patients and inspection system can directly improve the accuracy of video EEG monitoring.%目的 总结视频脑电监测过程中出现伪差的原因,并制定相应的干预措施.方法 对2010年10月-2011年10月563例接受视频脑电监测患者的监测结果进行分析.结果 563例中,出现伪差者104例.其中心电伪差15例,占14.4%;基线不稳31例,占29.8%;体动伪差33例,占31.7%;静电伪差22例,占21.2%;操作伪差3例,占2.9%.结论 加强护士视频脑电监测知识培训,强化健康教育,认真落实巡视制度可直接提高视频脑电监测的准确性,为临床诊断治疗提供可靠的依据,同时也使患者避免了不必要的经济损失.

  9. What are the Advantages? A Prospective Analysis of 16 versus 28 French Chest Tube Sizes in Video-assisted Thoracoscopic Surgery Lobectomy of Lung Cancer

    Directory of Open Access Journals (Sweden)

    Mei YANG

    2015-08-01

    Full Text Available Background and objective Post-operation management of minimally invasive thoracic surgery is similar to that of open surgery, especially on the drainage tube of the chest. The aim of this study is to compare the advantages of using 16 F versus 28 F chest tubes in video-assisted thoracoscopic surgery (VATS lobectomy of lung cancer. Methods Data from 163 patients (February-May 2014 who underwent VATS lobectomy of lung cancer with insertion of one chest drain (16 F or 28 F were analyzed. The following post-operative data were evaluated: primary healing of tube incision, CXR abnormalities (pneumothorax, fluid, atelectasis, subcutaneous emphysema, and hematoma, drainage time, new drain insertion, and wound healing at the site of insertion. Results A total of 75 patients received 28 F chest tubes, and 88 patients received 16 F chest tubes. Both groups were similar in age, gender, comorbidities, and pathological evaluation of resection specimens. After adjustment, no statistically significant difference was found between the two groups in relation to tube-related complications including residual pneumothoraces (4.00% vs 4.44%; P=0.999, subcutaneous emphysema (8.00% vs 6.67%; P=0.789, retained hemothorax (0 vs 41%, P=0.253, and drainage time [(28.4±16.12 h vs (22.1±11.8 h; P=0.120] The average total drainage volume and rrhythmia rates of the 16 F group [(365±106 mL, 14.67%] was less than that of the 28 F group [(665±217 mL, 4.5%; P=0.030, P=0.047]. The rates of primary healing at the site of insertion in the 16 F group (95.45% was higher than that in the 28 F group (77.73%, P=0.039. A significant difference was found on the post-operative length of stay of the two groups [(4.23±0.05 d vs (4.57±0.16 d, P=0.078]. Conclusion The use of 16 F chest tube for VATS lobectomy of patients with lung cancer did not affect the clinically relevant outcomes tested. However, 16 F chest tube facilitated faster wound healing at the site of insertion.

  10. Comparison of robotic and video-assisted thoracic surgery for lung cancer: a propensity-matched analysis

    Science.gov (United States)

    Bao, Feichao; Zhang, Chong; Yang, Yunhai; He, Zhehao; Wang, Luming

    2016-01-01

    Background Reports of comparison between robotic and thoracoscopic surgery for lung cancer are limited, we aimed to compare the perioperative outcomes of robotic and thoracoscopic anatomic pulmonary resection for lung cancer. Methods A total of 184 patients with lung cancer underwent anatomic pulmonary resection by robotics or thoracoscopy. A propensity-matched analysis with incorporated preoperative variables was used to compare the perioperative outcomes between the two procedures. Results Overall, 71 patients underwent robotic pulmonary resection, including 64 lobectomies and 7 segmentectomies, while 113 patients underwent thoracoscopic lobectomy and segmentectomy. Propensity match produced 69 pairs. The mean length of postoperative stay (7.6±4.6 vs. 6.4±2.6 d, P=0.078), chest tube duration (5.3±3.7 vs. 4.4±1.7 d, P=0.056), number of lymph nodes retrieved (17.9±6.9 vs. 17.4±7.0, P=0.660), stations of lymph nodes resected (7.4±1.6 vs. 7.6±1.7, P=0.563), operative blood loss (53.9±29.3 vs. 50.3±37.9 mL, P=0.531), morbidity rates (42.0% vs. 30.4%, P=0.157) were similar between the robotics and thoracoscopy. However, robotics was associated with higher cost ($12,067±1,610 vs. $8,328±1,004, P<0.001), and longer operative time (136±40 vs. 111±28 min, P<0.001). Conclusions Robotics seems to have higher hospital costs and longer operative time, without superior advantages in morbidity rates and oncologic efficiency. Further prospective randomized clinical trials were needed to validate both of its short- and long-term oncologic efficiency. PMID:27499971

  11. Clinical analysis of lung bullae of spontaneous pneumothorax with video-assisted thoracic surgery%胸腔镜治疗肺大疱合并自发性气胸54例临床分析

    Institute of Scientific and Technical Information of China (English)

    蒋修全; 寇瑛莉

    2011-01-01

    Objective To investigate the effect of minimally invasive video-assisted thoracic surgery on lung bullae with spontaneous pneumothorax. Methods Patients with lung bullae with spontaneous pneumothorax were treated with video-assisted thoracoscopic surgery (VATS). Results The cure rate was 100%. Conclusions There were radical effect, the low rate of relapse,small incision, less pain, shorter hospital stay and quicker recovery to treat ung bullae with spontaneous pneumothorax with video-assisted thoracic surgery (VATS).%目的 探讨电视胸腔镜微创手术治疗肺大疱合并自发性气胸的临床应用.方法 根据肺大疱合并自发性气胸患者临床表现,利用电视胸腔镜(VATS)对病人进行微创手术达到良好的治疗效果.结果 本组54例患者手术无死亡,治愈率100%.结论 采用电视辅助胸腔镜手术(VATS)治疗肺大疱合并自发性气胸,具有根治效果好、复发率低及切口小、痛苦少、住院时间短、恢复快等优点,是经济有效的方法,值得临床推广.

  12. The anesthesia analysis of the conversion video-assisted thoracic surgery to thoracotomy in pulmonary carcinoma%胸腔镜下肺癌中转手术的麻醉因素分析

    Institute of Scientific and Technical Information of China (English)

    Lairong Sun; Wenmin Xie

    2011-01-01

    Objective: The aim of this study was to anesthesia analyse the factors of conversing video-assisted thoracic surgery to thoracectomy in pulmonary carcinoma. Methods: Double-lumen tube bronchial catheter intubation and interstitial positive pressure ventilation (IPPV) were used in all patients with video-assisted thoracic surgery after fast-speed venous induced anesthesia. IPPV, positive expiratory pressure (PEEP) and continuous positive airway pressure (CPAP) in collapse lobes of lung were used in one lung ventilation, and ventilation parameters were adjusted. Results: Two hundred and fifity-two patients double-lumen bronchial tube intubation used by fiberscope was located very well. The level of oxygen saturation of blood (SpO2), end-tidal carbon dioxide pressure (PETCO2) could be maintained normal. 5 cases were forced to converse video-assisted thoracic surgery to thoracotomy because of 2 cases pulmonary adhesion, 2 cases severe pulmonary dysfunc-tion and 1 case abnormal anatomy respectively. Conclusion: Long one lung ventilation such as pulmonary adhesion, severe pulmonary dysfunction and abnormal anatomy should be considered to be relative contraindication.

  13. Prospective randomized controlled study on the effects of perioperative administration of a neutrophil elastase inhibitor to patients undergoing video-assisted thoracoscopic surgery for thoracic esophageal cancer.

    Science.gov (United States)

    Kawahara, Y; Ninomiya, I; Fujimura, T; Funaki, H; Nakagawara, H; Takamura, H; Oyama, K; Tajima, H; Fushida, S; Inaba, H; Kayahara, M

    2010-05-01

    Sivelestat sodium hydrate (Ono Pharmaceutical Co., Osaka, Japan) is a selective inhibitor of neutrophil elastase (NE) and is effective in reducing acute lung injury associated with systemic inflammatory response syndrome (SIRS). We conducted a prospective randomized controlled study to investigate the efficacy of perioperative administration of sivelestat sodium hydrate to prevent postoperative acute lung injury in patients undergoing thoracoscopic esophagectomy and radical lymphadenectomy. Twenty-two patients with thoracic esophageal cancer underwent video-assisted thoracoscopic esophagectomy with extended lymph node dissection in our institution between April 2007 and November 2008. Using a double-blinded method, these patients were randomly assigned to one of two groups preoperatively. The active treatment group received sivelestat sodium hydrate intravenously for 72 hours starting at the beginning of surgery (sivelestat-treated group; n= 11), while the other group received saline (control group; n= 11). All patients were given methylprednisolone immediately before surgery. Postoperative clinical course was compared between the two groups. Two patients (one in each group) were discontinued from the study during the postoperative period because of surgery-related complications. Of the remaining 20 patients, 2 patients who developed pneumonia within a week after surgery were excluded from some laboratory analyses, so data from 18 patients (9 patients in each group) were analyzed based on the arterial oxygen pressure/fraction of inspired oxygen ratio, white blood cell count, serum C-reactive protein level, plasma cytokine levels, plasma NE level, and markers of alveolar type II epithelial cells. In the current study, the incidence of postoperative morbidity did not differ between the two groups. The median duration of SIRS in the sivelestat-treated group was significantly shorter than that in the control group: 17 (range 9-36) hours versus 49 (15-60) hours

  14. Consistency of video-based operation ability rating scale for manual small incision cataract surgery%小切口白内障手术能力录像评分的一致性研究

    Institute of Scientific and Technical Information of China (English)

    刘斌; 黄文勇; 王兰花; 黄圣松

    2013-01-01

    professional technician in 10 county-level hospitals,then these videos were graded by 2 different professional trainers using a 5-point scale,ranging from 2 (not very skilled) to 5 (skilled),according to the ICO-SICS.The score was 0 if the particular step was finished by the trainer.After two weeks,these recordings were graded once more by the same method.Kappa value was used to assess the inter-rater consistency and intra-rater retest reliability.Results Available data and videos were collected from 10 surgeons,aged from 29 to 48 with a median age of 40.The mean kappa value of inter-observer reproducibility for each surgical step was 0.866 (0.734 ~ 0.982).The retest reliabilities of both trainers were over 0.800,with a mean kappa value of 0.921 (range:0.843 ~ 0.981) for trainer A and 0.926 (range:0.854 ~ 0.978)for trainer B.Conclusions According to ICO-OSCR:SICS scale,external video system is an effective and consistent assessment of the quality of each step of SICS.This method can be a method for trainees'surgery quality remote monitoring and self-assessment.

  15. Cirurgia cardíaca videoassistida: resultados de um projeto pioneiro no Brasil Video-assisted cardiac surgery: results from a pioneer project in Brazil

    Directory of Open Access Journals (Sweden)

    Robinson Poffo

    2009-09-01

    use of videothoracoscopy in cardiac surgery using cardiopulmonary bypass (CPB. METHODS: Between February 2006 and November 2008, 102 patients underwent consecutively minimally invasive video-assisted cardiac surgery. The cardiac pathologies approached were: mitral valvopathy (n=56, aortic (n=14, interatrial communication (IC (n=32, six patients presented associated tricuspid insufficiency and 12 presented atrial fibrillation. The age ranged from 18 to 68 years and 57 were female. The surgical approach was: femoral arterial and venous cannulation, minithoracotomy ranging from four to six centimeters (cm at the level of the 3º or 4º right intercostal space (RICS, depending on the pathology of the patient, between anterior axillary line and hemiclavicular line, submammary or right periareolar groove through the right breast and thoracoscopy. RESULTS: The surgical procedures were: plasty (n=20 or mitral valve replacement (n=36, aortic valve replacement (n=14, atrioseptoplasty using pericardial patch (n=32, tricuspid valve repair with rigid ring (n=6 and surgical correction of atrial fibrillation with radiofrequency (n=12. There were no complications during the procedures. There was no conversion to thoracotomy in neither case. Two patients developed atrial fibrillation in the postoperative period. There was an episode of stroke seven days after the hospital discharge and one death (0.9% due to systemic inflammatory response syndrome (SIRS. CONCLUSION: This study demonstrates the coverage of pathologies that are possible to be approached by video-assisted cardiac surgery with cardiopulmonary bypass being a safe and effective procedure with low morbimortality. Minimally invasive video-assisted cardiac surgery is already a reality in Brazil, demonstrating excellent aesthetic and functional results

  16. A new possibility in thoracoscopic virtual reality simulation training: development and testing of a novel virtual reality simulator for video-assisted thoracoscopic surgery lobectomy.

    Science.gov (United States)

    Jensen, Katrine; Bjerrum, Flemming; Hansen, Henrik Jessen; Petersen, René Horsleben; Pedersen, Jesper Holst; Konge, Lars

    2015-10-01

    The aims of this study were to develop virtual reality simulation software for video-assisted thoracic surgery (VATS) lobectomy, to explore the opinions of thoracic surgeons concerning the VATS lobectomy simulator and to test the validity of the simulator metrics. Experienced VATS surgeons worked with computer specialists to develop a VATS lobectomy software for a virtual reality simulator. Thoracic surgeons with different degrees of experience in VATS were enrolled at the 22nd meeting of the European Society of Thoracic Surgeons (ESTS) held in Copenhagen in June 2014. The surgeons were divided according to the number of performed VATS lobectomies: novices (0 VATS lobectomies), intermediates (1-49 VATS lobectomies) and experienced (>50 VATS lobectomies). The participants all performed a lobectomy of a right upper lobe on the simulator and answered a questionnaire regarding content validity. Metrics were compared between the three groups. We succeeded in developing the first version of a virtual reality VATS lobectomy simulator. A total of 103 thoracic surgeons completed the simulated lobectomy and were distributed as follows: novices n = 32, intermediates n = 45 and experienced n = 26. All groups rated the overall user realism of the VATS lobectomy scenario to a median of 5 on a scale 1-7, with 7 being the best score. The experienced surgeons found the graphics and movements realistic and rated the scenario high in terms of usefulness as a training tool for novice and intermediate experienced thoracic surgeons, but not very useful as a training tool for experienced surgeons. The metric scores were not statistically significant between groups. This is the first study to describe a commercially available virtual reality simulator for a VATS lobectomy. More than 100 thoracic surgeons found the simulator realistic, and hence it showed good content validity. However, none of the built-in simulator metrics could significantly distinguish between novice, intermediate

  17. 76 FR 54194 - Availability of Final Compliance Guide for the Use of Video or Other Electronic Monitoring or...

    Science.gov (United States)

    2011-08-31

    ... (PRA) related to Hazard Analysis and Critical Control Point (HACCP) and Sanitation Standard Operating... meet the requirements of the HACCP regulations, or the regulations governing Sanitation SOPs. In.... Additionally, one meat and poultry trade association and one video company, recommended the guide state...

  18. Epilepsy surgery: Recommendations for India

    Directory of Open Access Journals (Sweden)

    Chandra P

    2010-01-01

    Full Text Available The following article recommends guidelines for epilepsy surgery for India. This article reviews the indications, the various surgical options available and the outcome of surgery for drug resistant epilepsy based on current evidence. Epilepsy surgery is a well-established option for patients who have been diagnosed to have drug resistant epilepsy (DRE (on at least two appropriate, adequate anti-epileptic drugs (AEDs (either in monotherapy or in combination with continuing seizures, where the presurgical work-up has shown concordance of structural imaging (magnetic resonance imaging and electrical mapping data (electroencephalography (EEG, video EEG. There may be a requirement of functional imaging techniques in a certain number of DRE like positron emission tomography (PET, single photon emission tomography, (SPECT. Invasive monitoring should be restricted to a few when all noninvasive investigations are inconclusive, there is a dual pathology or there is a discordance of noninvasive data. The types of surgery could be curative (resective surgeries: amygdalo hippocampectomy, lesionectomy and multilobar resections; functional surgeries: hemispherotomy and palliative (multiple subpial transaction, corpus callosotomy, vagal nerve stimulation. Epilepsy surgery in indicated cases has a success range from 50 to 86% in achieving seizure freedom as compared with < 5% success rate with AEDs only in persons with DRE. Centers performing surgery should be categorized into Level I and Level II.

  19. Does C-MAC® video laryngoscope improve the nasotracheal intubating conditions compared to Macintosh direct laryngoscope in paediatric patients posted for tonsillectomy surgeries?

    Science.gov (United States)

    Patil, Vinuta V; Subramanya, Bala H; Kiranchand, N; Bhaskar, S Bala; Dammur, Srinivasalu

    2016-01-01

    Background and Aims: C-MAC® video laryngoscope (VL) with Macintosh blade has been found to improve Cormack-Lehane (C-L) laryngoscopic view as well as intubating conditions for orotracheal intubation. However, studies done on the performance of C-MAC® VL for nasotracheal intubation (NTI) are very few in number. Hence, we compared laryngoscopy and intubating conditions between Macintosh direct laryngoscope and C-MAC® VL for NTI. Methods: Sixty American Society of Anesthesiologists Physical Status I, II patients, aged 8–18 years, posted for tonsillectomy surgeries under general anaesthesia with NTI were randomised, into two groups. Patients in group 1 were intubated using Macintosh direct laryngoscope and group 2 with C-MAC® VL. C-L grading, time required for intubation, need for additional manoeuvres and haemodynamic changes during and after intubation were compared between the groups. Results: C-L grade 1 views were obtained in 26 and 29 patients in group 1 and group 2, respectively (86.7% vs. 96.7%). Remaining patients were having C-L grade 2 (13.3% vs. 3.3%). Duration of intubation was less than a minute in group 2 (93.3%). Need for additional manoeuvres (M1–M5) were more in group 1 (97% vs. 77%). M1 (external manipulation) was needed more in group 2 compared to group 1 (53.3% vs. 30%). Magill's forceps alone (M4) and M4 with additional external manipulation (M5) were needed more in group 1 compared to group 2 (60% vs. 16%). Conclusion: The overall performance of C-MAC® VL was better when compared to conventional direct Macintosh laryngoscope during NTI in terms of glottis visualisation, intubation time and need for additional manoeuvres.

  20. Long-term respiratory function recovery in patients with stage I lung cancer receiving video-assisted thoracic surgery versus thoracotomy

    Science.gov (United States)

    Park, Young Sik

    2016-01-01

    Background Video-assisted thoracic surgery (VATS) and thoracotomy are standard treatment methods for early lung cancer. We compared their effects on the long-term recovery of pulmonary function in patients with stage I non-small cell lung cancer (NSCLC). Methods We retrospectively reviewed 203 patients with early NSCLC who underwent VATS or thoracotomy at Seoul University Hospital from January 2005 to December 2010. Two matched groups (VATS and thoracotomy) each consisting of 60 patients were created via propensity score matching according to TNM stage, age, sex, smoking history, lung disease history, and preoperative pulmonary function. Results There were no significant differences in the recovery of forced expiratory volume in 1 second, the forced vital capacity (FVC), or the peak flow rate (PFR), presented as the postoperative value/predicted value, between the VATS and thoracotomy groups during the 12-month follow-up period. The standardized functional loss ratio [(measured postoperative value – predicted postoperative value)/(predicted postoperative value × 100)] did not differ between the two groups at 6 and 12 months. In an intragroup analysis, the postoperative FVC in the thoracotomy group remained below predicted postoperative value during the follow-up period and did not reach the predicted postoperative FVC (6 months/12 months: –6.58%/–2.43%). The analgesic requirements and pain procedures were similar in the VATS and thoracotomy groups during the 12-month follow-up period. Conclusions There were no significant differences in pulmonary function recovery during the late postoperative period in NSCLC patients receiving VATS versus thoracotomy. We suggest that the volume of the resected lung and preoperative lung function are the main determinants of late recovery, rather than postoperative pain. PMID:26904225

  1. Experiences and benefits of positron emitted tomography-computed tomography (PET-CT) combined with video-assisted thoracoscopic surgery (VATS) in the diagnosis of Stage 1 sarcoidosis

    Institute of Scientific and Technical Information of China (English)

    LUH Shi-ping; WU Tzu-chin; WANG Yao-tung; TSAO Thomas Chang-yao; CHEN Jia-yuh

    2007-01-01

    Background:The purpose of this study was to describe our experiences and analyze the benefits of video-assisted thoracoscopic surgery (VATS) combined with positron emitted tomography (PET)-computed tomography (CT) in the diagnosis of patients with early (Stage 1) sarcoidosis.Methods:From 1995 to 2006,seven patients (two males,five females),with ages ranging from 26 to 58 years,were impressed with Stage 1 sarcoidosis (mediastinal or hilar lymph nodes involvements without lung involvement) by histological examination of intrathoracic lymph nodes (LNs) and/or lung parenchyma taken from VATS biopsy.Three of them received PET or PET-CT evaluation.VATS was approached from the right and left side in one and six patients,respectively,according to the locations of their lesions.Results:All the VATS biopsied LNs or lung specimens were adequate for establishing diagnosis.Mediastinal LNs were taken from Groups 3,4 in four,Group 7 in two,and Groups 5,6 in one of them.Hilar LNs biopsies were performed in four cases.Lung biopsy was performed in all but two cases.All of them were expressed pathologically or radiologically as Stage 1 sarcoidosis.PET-CT revealed high emission signals over these affected LNs.These patients received oral steroid treatment or follow up only.All of them were followed up from 5 months to 11 years with satisfactory results.Conclusion:VATS biopsy is a minimally invasive,safe and effective procedure.It can be used as a diagnostic alternative of transbronchial lung biopsy (TBLB),and can harvest larger and more areas of specimens than mediastinoscopy for staging patients with sarcoidosis.PET-CT can provide us more accurate information about the characteristics and localization of these lesions before biopsy.VATS combined with PET-CT can provide more accurate and earlier diagnosis of patients with unknown intrathoracic lesions,including the sarcoidosis.

  2. First investigations to refine video-based IR thermography as a non-invasive tool to monitor the body temperature of calves.

    Science.gov (United States)

    Hoffmann, G; Schmidt, M; Ammon, C

    2016-09-01

    In this study, a video-based infrared camera (IRC) was investigated as a tool to monitor the body temperature of calves. Body surface temperatures were measured contactless using videos from an IRC fixed at a certain location in the calf feeder. The body surface temperatures were analysed retrospectively at three larger areas: the head area (in front of the forehead), the body area (behind forehead) and the area of the entire animal. The rectal temperature served as a reference temperature and was measured with a digital thermometer at the corresponding time point. A total of nine calves (Holstein-Friesians, 8 to 35 weeks old) were examined. The average maximum temperatures of the area of the entire animal (mean±SD: 37.66±0.90°C) and the head area (37.64±0.86°C) were always higher than that of the body area (36.75±1.06°C). The temperatures of the head area and of the entire animal were very similar. However, the maximum temperatures as measured using IRC increased with an increase in calf rectal temperature. The maximum temperatures of each video picture for the entire visible body area of the calves appeared to be sufficient to measure the superficial body temperature. The advantage of the video-based IRC over conventional IR single-picture cameras is that more than one picture per animal can be analysed in a short period of time. This technique provides more data for analysis. Thus, this system shows potential as an indicator for continuous temperature measurements in calves.

  3. Video monitoring reveals pulsating vents and propagation path of fissure eruption during the March 2011 Pu'u 'Ō'ō eruption, Kilauea volcano

    Science.gov (United States)

    Witt, Tanja; Walter, Thomas R.

    2017-01-01

    Lava fountains are a common eruptive feature of basaltic volcanoes. Many lava fountains result from fissure eruptions and are associated with the alignment of active vents and rising gas bubbles in the conduit. Visual reports suggest that lava fountain pulses may occur in chorus at adjacent vents. The mechanisms behind such a chorus of lava fountains and the underlying processes are, however, not fully understood. The March 2011 eruption at Pu'u 'Ō'ō (Kilauea volcano) was an exceptional fissure eruption that was well monitored and could be closely approached by field geologists. The fissure eruption occurred along groups of individual vents aligned above the feeding dyke. We investigate video data acquired during the early stages of the eruption to measure the height, width and velocity of the ejecta leaving eight vents. Using a Sobel edge-detection algorithm, the activity level of the lava fountains at the vents was determined, revealing a similarity in the eruption height and frequency. Based on this lava fountain time series, we estimate the direction and degree of correlation between the different vents. We find that the height and velocity of the eruptions display a small but systematic shift in time along the vents, indicating a lateral migration of lava fountaining at a rate of 11 m/s from W to E. This finding is in agreement with a propagation model of a pressure wave originating at the Kilauea volcano and propagating through the dyke at 10 m/s from W to E. Based on this approach from videos only 30 s long, we are able to obtain indirect constraints on the physical dyke parameters, with important implications for lateral magma flow processes at depth. This work shows that the recording and analysis of video data provide important constraints on the mechanisms of lava fountain pulses. Even though the video sequence is short, it allows for the confirmation of the magma propagation direction and a first-order estimation of the dyke dimensions.

  4. Research on Remote Video Monitoring System Based on Embedded Web Technology%基于嵌入式Web技术的远程视频监控系统的研究

    Institute of Scientific and Technical Information of China (English)

    戴雯惠

    2012-01-01

    重点研究基于ARM平台的嵌入式Linux远程视频监控系统中的视频采集和传输模块.通过在嵌入式视频采集终端建立嵌入式web服务器.使用户在Pc上通过web页面进行视频的监控过程。%Focuses on the ARM platform remote video monitoring system for embedded Linux-based video capture and transmission module, through building Embedded Web server in the embedded video capture terminal, achieves the purpose of video monitoring process on a PC through a Web page.

  5. 胸腔镜在自发性气胸治疗中的应用体会%Clinical Analysis of Lung Bullae of Spontaneous Pneumothorax with Video-assisted Thoracic Surgery

    Institute of Scientific and Technical Information of China (English)

    刘文

    2014-01-01

    目的探讨电视胸腔镜微创手术治疗肺大疱合并自发性气胸的临床应用。方法根据肺大疱合并自发性气胸患者临床表现,利用电视胸腔镜(VATS)对患者进行微创手术达到良好的治疗效果。结果本组199例患者手术无死亡,治愈率98豫。结论采用电视辅助胸腔镜手术(VATS)治疗肺大疱合并自发性气胸,具有根治效果好、复发率低及切口小、痛苦少、住院时间短、恢复快等优点,是安全有效的方法,值得临床推广。%Objective To evaluate video-assisted thoracoscopic minimal y invasive surgical treatment of pulmonary bul ae merger of the clinical application of spontaneous pneumothorax. Methods According to the clinical manifestations of pulmonary bul ae merger of patients with spontaneous pneumothorax, the use of video-assisted thoracoscopic surgery (VATS) for patients with minimal y invasive surgery to achieve good treatment ef ect. Results In this group, 199 patients died without surgery, the cure rate was 98%. Conclusion Video assisted thoracoscopic surgery (VATS) for treatment of pulmonary bul ae with spontaneous pneumothorax with radical, good ef ect, low recurrence rate and smal incision, less pain, shorter hospitalization time, rapid recovery, is a safe and ef ective method, is worth the clinical promotion.

  6. Application Of Intelligence Video Monitoring System In Forest Fire Prevention%智能视频监控系统在森林防火上的应用

    Institute of Scientific and Technical Information of China (English)

    刘少军; 甄久立

    2012-01-01

    智能视频监控系统是在传统视频监控系统的基础之上,通过在前端使用可编程三维精确定位摄像技术和烟火智能识别技术,在后端使用3DGIS技术和联网监控技术,并针对森林防火的实际需要在3DGIS平台之上开发了森林防火辅助决策及应急指挥平台。%Based on traditional video monitoring system, intelligence video monitoring system is to use programma- ble three -dimensional positioning camera shooting and intelligence fireworks distinguish technique in the front end, adopting 3D GIS and networking supervision technique in the back end. The forest fire prevention aid decision making and emergencies direction plat was developed in allusion to the actual demands of forest fire proof based on 3 D GIS platform.

  7. Design and Implementation of Video Monitoring System Based on Campus Network%基于网络的校区视频监控设计与实现

    Institute of Scientific and Technical Information of China (English)

    汪洋; 郑连清

    2011-01-01

    Under the condition of pattern for running school in cross-region and multi-campus,in order to guarantee to have a safe and healthy learning environment for teachers and students not stayed in school and to assure the safety of the school property,the life and property of staff and students,the paper designed the video monitoring system based on campus network.The system realized the video digitization,networked monitoring and system integration,and established the security protection system in higher school under the new period,background and environment.And it has profound practical significance to improve the security for prevention and control.%为了保证跨区域、多校区办学模式学校的师生能有一个安全、健康的学习环境,确保学校财产和师生员工生命财产安全,设计了基于网络的校区视频监控系统。该系统实现了视频数字化、监控网络化、系统集成化,建成了新时期、新背景和新环境下的高校安全防范体系,加强了高校的安全防控工作,提高了校园的安全保卫能力。

  8. 基于ZoneMinder的多触发源网络视频监控方案%Embedded network video monitor based on ZoneMinder

    Institute of Scientific and Technical Information of China (English)

    刘正; 安峰

    2012-01-01

    引入开源项目ZoneMinder,搭建基于Linux平台的网络视频监控系统。介绍了整体方案和ZoneMinder的基本原理,重点讲述了视频的多触发监控方式。基于此方案,只需采用普通的摄像头和简单的配置,无需额外布线和昂贵的监控设备,即可以快速地搭建一套经济实用的网络监控系统.为智能家居、楼宇安保提供了一个新的解决方案,具有较高的应用价值。%ZoneMinder is the top Linux video camera security and surveillance solution, together with an embedded device as a remote console and some communication interface, it can build an embedded network video monitor system. Based on this system, intelligence housing could come true. In this paper, it introduces the steps, communication interface and principles of how to build a monitor system based on ZoneMinder, which should be useful in the application fields.

  9. TMS320DM6467的视频转码监控系统设计%Design of Video Transcoding Monitoring System Based on TMS320DM6467

    Institute of Scientific and Technical Information of China (English)

    吴航; 林岩

    2012-01-01

    提出基于嵌入式Web服务器Boa和CGI技术的网络通信思想,以VPC6467视频转码系统为硬件平台,基于嵌入式Linux操作系统的编译开发环境,设计了视频转码设备的监控系统.详述了虚拟共享内存的进程通信机制、HTML页面与服务器通信的CGI技术、Linux系统交叉编译环境的搭建,以及监控系统各个模块的设计思想.%An network communication method is proposed based on embedded Web server Boa and CGI technology. Taking VPC6467 video transcoding system as hardware platform, the video transcoding monitoring system is realized based on compiling development environment of embedded Linux operating system. Process communication mechanism of virtual shared memory, CGI technique for communication between HTML pages and server,cross-compiling environment building in Linux system, and design ideas of all modules in the monitoring system are elaborated.

  10. Value of free-run electromyographic monitoring of lower cranial nerves in endoscopic endonasal approach to skull base surgeries.

    Science.gov (United States)

    Thirumala, Parthasarathy D; Mohanraj, Santhosh Kumar; Habeych, Miguel; Wichman, Kelley; Chang, Yue-Fang; Gardner, Paul; Snyderman, Carl; Crammond, Donald J; Balzer, Jeffrey

    2012-08-01

    Objective The main objective of this study was to evaluate the value of free-run electromyography (f-EMG) monitoring of cranial nerves (CNs) VII, IX, X, XI, and XII in skull base surgeries performed using endoscopic endonasal approach (EEA) to reduce iatrogenic CN deficits. Design We retrospectively identified 73 patients out of 990 patients who had EEA in our institution who had at least one CN monitored. In each CN group, we classified patients who had significant (SG) f-EMG activity as group I and those who did not as group II. Results We monitored a total of 342 CNs. A total of 62 nerves had SG f-EMG activity including CN VII = 18, CN IX = 16, CN X = 13, CN XI = 5, and CN XII = 10. No nerve deficit was found in the nerves that had significant activity during procedure. A total of five nerve deficits including (CN IX = 1, CN X = 2, CN XII = 2) were observed in the group that did not display SG f-EMG activity during surgery. Conclusions f-EMG seems highly sensitive to surgical manipulations and in locating CNs. It seems to have limited value in predicting postoperative neurological deficits. Future studies to evaluate the EMG of lower CNs during EEA procedures need to be done with both f-EMG and triggered EMG.

  11. Dashboard Videos

    Science.gov (United States)

    Gleue, Alan D.; Depcik, Chris; Peltier, Ted

    2012-01-01

    Last school year, I had a web link emailed to me entitled "A Dashboard Physics Lesson." The link, created and posted by Dale Basier on his "Lab Out Loud" blog, illustrates video of a car's speedometer synchronized with video of the road. These two separate video streams are compiled into one video that students can watch and analyze. After seeing…

  12. Comprehensive evaluation of latest 2D/3D monitors and comparison to a custom-built 3D mirror-based display in laparoscopic surgery

    Science.gov (United States)

    Wilhelm, Dirk; Reiser, Silvano; Kohn, Nils; Witte, Michael; Leiner, Ulrich; Mühlbach, Lothar; Ruschin, Detlef; Reiner, Wolfgang; Feussner, Hubertus

    2014-03-01

    Though theoretically superior, 3D video systems did not yet achieve a breakthrough in laparoscopic surgery. Furthermore, visual alterations, such as eye strain, diplopia and blur have been associated with the use of stereoscopic systems. Advancements in display and endoscope technology motivated a re-evaluation of such findings. A randomized study on 48 test subjects was conducted to investigate whether surgeons can benefit from using most current 3D visualization systems. Three different 3D systems, a glasses-based 3D monitor, an autostereoscopic display and a mirror-based theoretically ideal 3D display were compared to a state-of-the-art 2D HD system. The test subjects split into a novice and an expert surgeon group, which high experience in laparoscopic procedures. Each of them had to conduct a well comparable laparoscopic suturing task. Multiple performance parameters like task completion time and the precision of stitching were measured and compared. Electromagnetic tracking provided information on the instruments path length, movement velocity and economy. The NASA task load index was used to assess the mental work load. Subjective ratings were added to assess usability, comfort and image quality of each display. Almost all performance parameters were superior for the 3D glasses-based display as compared to the 2D and the autostereoscopic one, but were often significantly exceeded by the mirror-based 3D display. Subjects performed the task at average 20% faster and with a higher precision. Work-load parameters did not show significant differences. Experienced and non-experienced laparoscopists profited equally from 3D. The 3D mirror system gave clear evidence for additional potential of 3D visualization systems with higher resolution and motion parallax presentation.

  13. Altered right ventricular contractile pattern after cardiac surgery: monitoring of septal function is essential.

    Science.gov (United States)

    Nguyen, Tin; Cao, Long; Movahed, Assad

    2014-10-01

    Assessment of right ventricular (RV) function is important in the management of various forms of cardiovascular disease. Accurately assessing RV volume and systolic function is a challenge in day-to-day clinical practice due to its complex geometry. Tricuspid annular plane systolic excursion (TAPSE) and systolic excursion velocity (S') have been reviewed to further assess their suitability and objectivity in evaluating RV function. Multiple studies have validated their diagnostic and prognostic values in numerous pathologic conditions. Diminished longitudinal contraction after cardiothoracic surgery is a well-known phenomenon, but it is not well validated. Despite significant reduction in RV performance along the long-axis assessed by TAPSE and S' after cardiac surgery, RV ejection fractions did not change as well as the left ventricular parameters and exercise capacity. RV contractile patterns were markedly altered with decreased longitudinal shortening and increased transverse shortening, which are likely resulted from the septal damage during cardiac surgery. The septum is essential for RV performance due to its oblique fiber orientation. This allows ventricular twisting, which is a vital mechanism against increased pulmonary vascular resistance. The septum function along with TAPSE and S' should be adequately assessed during cardiac surgery, and evidence of septal dysfunction should lead to reevaluation of myocardial protection methods.

  14. The effects of bispectral index monitoring on hemodynamics and recovery profile in developmentally delayed pediatric patients undergoing dental surgery.

    Science.gov (United States)

    Sargin, Mehmet; Uluer, Mehmet Selcuk; Ozmen, Sadık

    2015-09-01

    General anesthesia is often preferred for dental surgery or rehabilitation in developmentally delayed pediatric patients. Bispectral index monitoring is used to monitor the depth of anesthesia and to ensure early recovery. However, studies on the topic in developmentally delayed pediatric patients are limited. To evaluate the effects of Bispectral Index Scale (BIS) on hemodynamics and recovery profile in developmentally delayed pediatric patients undergoing dental surgery. Forty children between the ages of 6-16 years were studied in this prospective and randomized study. The children were randomized into two groups. In Group 1 (n = 20), general anesthesia was maintained with 1-2 minimum alveolar concentration (MAC) of sevoflurane in oxygen by standard practice. In Group 2 (n = 20), the depth of anesthesia was monitored by BIS. BIS values were continuously recorded from awake status to tracheal extubation. The duration of the surgical procedure, anesthesia, postanesthesia care unit (PACU) stay was noted. To evaluate recovery profile, time to spontaneous ventilation, extubation, open eyes, and PACU discharge were also noted. There were significant differences between recovery times and Non-communicating Children's Pain Checklist - Postoperative Version (NCCPC-PV) scores of two groups. Time to spontaneous ventilation [Difference in means (95% CI); 3.17 (1.79-4.54) P < 0.001], extubation [Difference in means (95% CI); 3.13 (1.66-4.60) P < 0.001], open eyes [Difference in means (95% CI); 3.97 (2.34-5.59) P < 0.001], and PACU stay time [Difference in means (95% CI); 23.55 (18.08-29.01) P < 0.001] were significantly shorter in Group 2. In conclusion, results suggest that routine BIS monitoring may be beneficial due to its favorable effects on the recovery profile in developmentally delayed pediatric patients. © 2015 John Wiley & Sons Ltd.

  15. Ecological Assessment of Autonomy in Instrumental Activities of Daily Living in Dementia Patients by the means of an Automatic Video Monitoring System

    Directory of Open Access Journals (Sweden)

    Alexandra eKönig

    2015-06-01

    Full Text Available Currently, the assessment of autonomy and functional ability involves clinical rating scales. However, scales are often limited in their ability to provide objective and sensitive information. In contrast, information and communication technologies may overcome these limitations by capturing more fully the functional, as well as cognitive disturbances associated with Alzheimer disease (AD. We investigated the quantitative assessment of the autonomy of dementia patients based not only on gait analysis but also on the participant performance on Instrumental Activities of Daily Living (IADL automatically recognized by a video event monitoring system (EMS. Three groups of participants (healthy controls, Mild Cognitive Impairment and AD patients had to carry out a standardized scenario consisting of physical tasks (single and dual task and several IADLs such as preparing a pillbox or making a phone call while being recorded. After, video sensor data was processed by an event monitoring system that automatically extracts kinematic parameters of the participants’ gait and recognizes their carried out activities. These parameters were then used for the assessment of the participants’ performance levels, here referred as autonomy. Autonomy assessment were approached as classification task using artificial intelligence methods that takes as input the parameters extracted by the event monitoring system, here referred as behavioral data. Activities were accurately recognized by the EMS with high precision. The most accurately recognized activities were: ‘prepare medication’ with 93% and ‘using phone’ with 89% precision. The diagnostic group classifier obtained a precision of 73.46% when combining the analyses of physical tasks with IADLs. In a further analysis, the created autonomy group classifier which obtained a precision of 83.67% when combining physical tasks and IADLs. Results suggest that it is possible to quantitatively assess IADL

  16. Design and implementation of intelligent bionic eye video monitoring system%智能仿生眼视频监控系统的设计与实现

    Institute of Scientific and Technical Information of China (English)

    蒋东国; 冷斌; 贺庆; 官冠; 王文韬; 丁磊; 胡欢

    2015-01-01

    To solve the existing video surveillance system ’s shortcomings of limited coverage ,polysemy of monocular camera po‐sitioning and poor performance of real‐time identification tracking ,a wide‐area perimeter video monitoring system was proposed which fully drew lessons from the nature and used multiple sets of bionic eye for collaborative monitoring .The mechanical struc‐ture and circuit control system were self‐developed ,and the 3D structural relations between monitoring system and boundary were set up by adopting the methods of binocular active vision and boundary setting .Several systems were designed and tested . The results show the system is characterized by wide coverage ,high intelligence and good stability .%为克服现有视频监控系统覆盖面积有限、单目摄像头定位多义性以及实时识别跟踪性能差的缺点,提出一种充分借鉴生物眼自然特性、多组仿生眼系统协同监控的广域周界视频监控系统。通过自主研制系统机械构造、电路控制系统,采用双目主动视觉定位、边界设定等方法,建立整个监控系统和边界的三维结构关系。搭建多组仿生眼系统并进行户外测试实验,实验结果表明,该设计拥有监控覆盖面积广、智能化高、稳定性好的特性。

  17. Postoperative pulmonary complications and rehabilitation requirements following lobectomy: a propensity score matched study of patients undergoing video-assisted thoracoscopic surgery versus thoracotomy†.

    Science.gov (United States)

    Agostini, Paula; Lugg, Sebastian T; Adams, Kerry; Vartsaba, Nelia; Kalkat, Maninder S; Rajesh, Pala B; Steyn, Richard S; Naidu, Babu; Rushton, Alison; Bishay, Ehab

    2017-06-01

    : Video-assisted thoracoscopic surgical (VATS) lobectomy is increasingly used for curative intent lung cancer surgery compared to open thoracotomy due to its minimally invasive approach and associated benefits. However, the effects of the VATS approach on postoperative pulmonary complications (PPC), rehabilitation and physiotherapy requirements are unclear; our study aimed to use propensity score matching to investigate this. Between January 2012 and January 2016 all consecutive patients undergoing lobectomy via thoracotomy or VATS were prospectively observed. Exclusion criteria included VATS converted to thoracotomy, re-do thoracotomy, sleeve/bilobectomy and tumour size >7 cm diameter (T3/T4). All patients received physiotherapy assessment on postoperative day 1 (POD1), and subsequent treatment as deemed appropriate. PPC frequency was measured daily using the Melbourne Group Scale. Postoperative length of stay (LOS), high dependency unit (HDU) LOS, intensive therapy unit (ITU) admission and in-hospital mortality were observed. Propensity score matching (PSM) was performed using previous PPC risk factors (age, ASA score, body mass index, chronic obstructive pulmonary disease, current smoking) and lung cancer staging. Over 4 years 736 patients underwent lobectomy with 524 remaining after exclusions; 252 (48%) thoracotomy and 272 (52%) VATS cases. PSM produced 215 matched pairs. VATS approach was associated with less PPC (7.4% vs 18.6%; P  < 0.001), shorter median LOS (4 days vs 6; P  < 0.001), and a shorter median HDU LOS (1 day vs 2; P  = 0.002). Patients undergoing VATS required less physiotherapy contacts (3 vs 6; P  < 0.001) and reduced therapy time (80 min vs 140; P  < 0.001). More patients mobilized on POD1 (84% vs 81%; P  = 0.018), and significantly less physiotherapy to treat sputum retention and lung expansion was required ( P  < 0.05). This study demonstrates that patients undergoing VATS lobectomy developed less PPC and

  18. 浅谈高清视频监控在智能建筑行业的应用%Discussion on Application of HD Video Monitoring in Intelligent Building Industry

    Institute of Scientific and Technical Information of China (English)

    万云峰; 周鸣

    2011-01-01

    This paper expounds the concept and superiority of high-definition video monitoring, as well as the problems faced at present. It introduces the application of high-definition video monitoring and assorted solutions in intelligent building industry.%本文阐述了高清视频监控的概念、优势以及目前遇到的问题,介绍了高清视频监控在智能建筑行业的应用及配套的解决方案。

  19. Wireless Monitoring Program of Patient-Centered Outcomes and Recovery Before and After Major Abdominal Cancer Surgery.

    Science.gov (United States)

    Sun, Virginia; Dumitra, Sinziana; Ruel, Nora; Lee, Byrne; Melstrom, Laleh; Melstrom, Kurt; Woo, Yanghee; Sentovich, Stephen; Singh, Gagandeep; Fong, Yuman

    2017-06-07

    A combined subjective and objective wireless monitoring program of patient-centered outcomes can be carried out in patients before and after major abdominal cancer surgery. To conduct a proof-of-concept pilot study of a wireless, patient-centered outcomes monitoring program before and after major abdominal cancer surgery. In this proof-of-concept pilot study, patients wore wristband pedometers and completed online patient-reported outcome surveys (symptoms and quality of life) 3 to 7 days before surgery, during hospitalization, and up to 2 weeks after discharge. Reminders via email were generated for all moderate to severe scores for symptoms and quality of life. Surgery-related data were collected via electronic medical records, and complications were calculated using the Clavien-Dindo classification. The study was carried out in the inpatient and outpatient surgical oncology unit of one National Cancer Institute-designated comprehensive cancer center. Eligible patients were scheduled to undergo curative resection for hepatobiliary and gastrointestinal cancers, were English speaking, and were 18 years or older. Twenty participants were enrolled over 4 months. The study dates were April 1, 2015, to July 31, 2016. Outcomes included adherence to wearing the pedometer, adherence to completing the surveys (MD Anderson Symptom Inventory and EuroQol 5-dimensional descriptive system), and satisfaction with the monitoring program. This study included a final sample of 20 patients (median age, 55.5 years [range, 22-74 years]; 15 [75%] female) with evaluable data. Pedometer adherence (88% [17 of 20] before surgery vs 83% [16 of 20] after discharge) was higher than survey adherence (65% to 75% [13 of 20 and 15 of 20] completed). The median number of daily steps at day 7 was 1689 (19% of daily steps at baseline), which correlated with the Comprehensive Complication Index, for which the median was 15 of 100 (r = -0.64, P < .05). Postdischarge overall symptom severity (2

  20. Video demystified

    CERN Document Server

    Jack, Keith

    2004-01-01

    This international bestseller and essential reference is the "bible" for digital video engineers and programmers worldwide. This is by far the most informative analog and digital video reference available, includes the hottest new trends and cutting-edge developments in the field. Video Demystified, Fourth Edition is a "one stop" reference guide for the various digital video technologies. The fourth edition is completely updated with all new chapters on MPEG-4, H.264, SDTV/HDTV, ATSC/DVB, and Streaming Video (Video over DSL, Ethernet, etc.), as well as discussions of the latest standards throughout. The accompanying CD-ROM is updated to include a unique set of video test files in the newest formats. *This essential reference is the "bible" for digital video engineers and programmers worldwide *Contains all new chapters on MPEG-4, H.264, SDTV/HDTV, ATSC/DVB, and Streaming Video *Completely revised with all the latest and most up-to-date industry standards.

  1. 支气管阻塞器用于胸腔镜下肺癌术患者单肺通气的效果%Effect of endobronchial blocker tube in the pulmonary carcinoma with video-assisted thoracic surgery

    Institute of Scientific and Technical Information of China (English)

    Lairong Sun; Lianbing Gu; Bihui Ren; Ninglei Qiu; Lijun Wang

    2011-01-01

    Objective: The aim of this study was to observe the effect of endobronchial blocker tube in the pulmonary carcinoma with video-assisted thoracic surgery. Methods: Forty patients of pulmonary carcinoma with video-assisted thoracic surgery were randomly assigned into two groups with twenty cases each: endobronchial blocker tube group (group 1) and double-lumen endobronchial tube group (group 2). After anesthesia was induced, in group 1, single lumen tube was intubated at first, and then endobronchial blocker tube intubated to left or right primary bronchus under the guidance of fiber-optic bronchoscope according to operational necessary, injected 2-4 mL air to blocker balloon and blocker one lateral primary bronchus for one-lung ventilation necessarily; while in group 2, the position of double-lumen endobronchial tube was confirmed with fiber-optic bronchoscope after intubation. Blood samples were collected before anesthesia induction, double lumen ventilation, at the one-lung ventilation of 5 min, 30 min, 60 min, 120 min and 180 min, SBP, DBP, HR, SpO2, partial pressure of end tidal carbon dioxide (PetCO2), pH, PaO2, PaCO2,PaO2/FiO2 were recorded. Results: Forty cases' intubations were all successful. There were no differences in SBP, DBP, HR, SpO2, PetCO2, pH, PaCO2 between two groups in different points (P > 0.05). Paw in group 1 was lower than group 2, PaO2 and PaO2/FiO2 in group 1 was higher than group 2 in the one lung ventilation of 5 min, 30 min, 60 min, 120 min and 180 min. Conclusion: The endobronchial blocker tube can meet the request of video-assisted thoracic surgery, with the special advantages of simple insertion, lower airway and better oxygenation. Endobronchial blocker tube offer a new way for one-lung ventilation in the pulmonary carcinoma with video-assisted thoracic surgery.

  2. Monitoring of oxidative and metabolic stress during cardiac surgery by means of breath biomarkers: an observational study

    Directory of Open Access Journals (Sweden)

    Kischkel Sabine

    2007-09-01

    also high concentrations of pentane in exhaled air. Exhaled isoprene concentrations raised significantly after sternotomy and decreased to initial levels at 30 min after end of ECC. Exhaled isoprene concentrations showed a correlation with cardiac output. Conclusion Oxidative and metabolic stress during cardiac surgery could be assessed continuously and non-invasively by means of breath analysis. Correlations between breath acetone profiles and clinical conditions underline the potential of breath biomarker monitoring for diagnostics and timely initiation of life saving therapy.

  3. Research and Implementation of Key Technologies of Underground Wireless Video Monitoring System%井下无线视频监控系统的关键技术研究与实现

    Institute of Scientific and Technical Information of China (English)

    李晋

    2012-01-01

    Key technologies of underground wireless video monitoring system were researched and implemented including video data acquisition, coding and decoding, network transmission, etc. The system codes video data by use of MPEG-4 protocol, transmits the coded data through WiFi network and RTP stream medium protocol, and decodes and displays received video data by use of monitoring host. The experimental result showed that the system could transmit 25 frame of MPEG-4 video data and the video images are clear and fluent.%研究并实现了煤矿井下无线视频监控系统的视频采集、视频编解码、视频数据的网络传输等关键技术.该系统对采集到的视频图像数据进行MPEG-4编码,通过WiFi和RTP流媒体协议对编码数据进行传输,通过监控主机对接收数据进行解码并显示.实验结果表明,该系统每秒可传输25帧MPEG-4视频数据,且视频图像清晰、流畅.

  4. Impact of Video Laryngoscopy on Advanced Airway Management by Critical Care Transport Paramedics and Nurses Using the CMAC Pocket Monitor.

    Science.gov (United States)

    Boehringer, Bradley; Choate, Michael; Hurwitz, Shelley; Tilney, Peter V R; Judge, Thomas

    2015-01-01

    Accurate endotracheal intubation for patients in extremis or at risk of physiologic decompensation is the gold standard for emergency medicine. Field intubation is a complex process and time to intubation, number of attempts, and hypoxia have all been shown to correlate with increases in morbidity and mortality. Expanding laryngoscope technology which incorporates active video, in addition to direct laryngoscopy, offers providers improved and varied tools to employ in management of the advanced airway. Over a nine-year period a helicopter emergency medical services team, comprised of a flight paramedic and flight nurse, intended to intubate 790 patients. Comparative data analysis was performed and demonstrated that the introduction of the CMAC video laryngoscope improved nearly every measure of success in airway management. Overall intubation success increased from 94.9% to 99.0%, first pass success rates increased from 75.4% to 94.9%, combined first and second pass success rates increased from 89.2% to 97.4%, and mean number of intubation attempts decreased from 1.33 to 1.08.

  5. Impact of Video Laryngoscopy on Advanced Airway Management by Critical Care Transport Paramedics and Nurses Using the CMAC Pocket Monitor

    Directory of Open Access Journals (Sweden)

    Bradley Boehringer

    2015-01-01

    Full Text Available Accurate endotracheal intubation for patients in extremis or at risk of physiologic decompensation is the gold standard for emergency medicine. Field intubation is a complex process and time to intubation, number of attempts, and hypoxia have all been shown to correlate with increases in morbidity and mortality. Expanding laryngoscope technology which incorporates active video, in addition to direct laryngoscopy, offers providers improved and varied tools to employ in management of the advanced airway. Over a nine-year period a helicopter emergency medical services team, comprised of a flight paramedic and flight nurse, intended to intubate 790 patients. Comparative data analysis was performed and demonstrated that the introduction of the CMAC video laryngoscope improved nearly every measure of success in airway management. Overall intubation success increased from 94.9% to 99.0%, first pass success rates increased from 75.4% to 94.9%, combined first and second pass success rates increased from 89.2% to 97.4%, and mean number of intubation attempts decreased from 1.33 to 1.08.

  6. [Laparoscopic surgery in Europe. Where are we going?].

    Science.gov (United States)

    Cuschieri, Alfred

    2006-01-01

    The most important factors that have facilitated the development of laparoscopic surgery (LS) are technological innovations and the vision of a small number of surgeons who took advantage of these advances. There are few surgical innovations that have stimulated such controversies and concerns and have raised so many medico-legal issues as LS. Although much progress has been made in LS, some important controversies remain unresolved, which are reviewed in the present article: 1. Evolution of the laparoscopic approach: total laparoscopic approach through positive-pressure capnoperitoneum, gasless laparoscopy, hand-assisted laparoscopy, and laparoscopy-assisted surgery. 2. Classification of current instrumental technology in laparoscopic surgery: a) facilitating instruments (high-power ultrasonic dissection systems); b) enabling instruments (endostapling and linear dissection devices), and c) complementary instruments: the Da Vinci robotic system. 3. Current laparoscopic surgical practice: a) interventions that definitively improve the patient's outcome (diagnostic and staging laparoscopy, cholecystectomy, adrenalectomy, splenectomy, antireflux surgery, cardiomyotomy, bariatric surgery, laparoscopic colon surgery, living donor nephrectomy); b) interventions that seem to be useful to the patient (distal pancreatic surgery, laparoscopic left hepatic resection, gastric and esophageal resections, hernioplasty), and c) interventions with uncertain benefit (right hepatectomy, pancreatoduodenectomy). 4. Future lines of development: video monitors in laparoscopic surgery, endoluminal surgery, robotic surgery, and finally, 5. Problems faced by laparoscopic surgery: quality guarantees in laparoscopic surgery, training the future laparoscopic generation, and allocation of sufficient material and human resources to laparoscopic surgery and its subspecialties.

  7. The management of cardiopulmonary bypass in patients undergoing mitral valve replacement surgery with total video thoracoscope%全胸腔镜下二尖瓣置换的体外循环管理

    Institute of Scientific and Technical Information of China (English)

    周和平; 孙国成; 陈涛; 熊红燕; 冯建宇; 金振晓

    2011-01-01

    目的 总结全胸腔镜下二尖瓣置换手术的体外循环的管理方法.方法 85例二尖瓣病变患者,采用全胸腔镜下二尖瓣置换术,对体外循环建立方法、体外循环管理及手术后结果进行评价.结果 85例患者体外循环时间为90~155(120.7±17.4) min,升主动脉阻断时间40~90(51.2±9.1)min.所有患者手术过程顺利.术后均恢复良好,无严重并发症.结论 全胸腔镜下二尖瓣置换术的体外循环方法安全、可行.%Objective To summarize the management of cardiopulmonary bypass ( CPB ) in patients undergoing mitral valve replacement surgery with total video thoracoscope. Methods Eighty - five consecutive patients with mitral valve diseases undergoing mitral valve replacement surgery with total video thoracoscope were included. The methods of CPB setup and the precise management during surgery and the clinical results were evaluated. Results The CPB time of the patients was 90 - 155 ( 120.7 ± 17. 4 ) min and the aortic - clamping time was 40- 90(51.2±9.1 ) min. One patient had bleeding due to aortic purse string loose after CPB disconnection, which resulted in unstable hemodynamics and necessitated urgent treatment, then recovered uneventfully. All other patients recovered well without any severe complications. Conclusion The cardiopulmonary bypass of mitral valve replacement surgery with total vedio thoracoscope is safe and practical.

  8. Three-year monitoring of serum p53 antibody during chemotherapy and surgery for stage IV rectal cancer.

    Science.gov (United States)

    Suzuki, Takayuki; Shimada, Hideaki; Ushigome, Mitsunori; Koike, Junichi; Funahashi, Kimihiko; Nemoto, Tetsuo; Kaneko, Hironori

    2016-04-01

    The overexpression of mutant p53 stimulates serum p53 antibody production in patients with colorectal carcinoma even in superficial tumors. Although the short-term perioperative monitoring of serum p53 antibody titers is reported to be useful in predicting tumor recurrence and patient survival in colorectal carcinoma, the clinical utility of the long-term monitoring of serum p53 antibody titers in patients with colorectal cancer remains unknown. Here, we report the 3-year monitoring of serum p53 antibody titers in a 60-year-old man with rectal cancer, clinical stage IV (T2N2M1b, lung and liver metastases), who was treated with chemotherapy and surgery. Screening tests for CEA (29.4 ng/ml), CA19-9 (41.1 U/ml), and serum p53 antibody (2170 U/ml) were positive before treatment. After chemotherapy with mFOLFOX6 + bevacizumab (B-mab), CEA and CA19-9 decreased to the normal range. However, serum p53 antibody titer remained positive (283 U/ml). After low anterior resection, the serum p53 antibody titer still remained positive (63.4 U/ml). Serum p53 antibody titer significantly changed and was associated with treatment response and tumor recurrence. In the last 6 months of the patient's life, serum p53 antibody titer gradually decreased, which possibly reflects the modification of the patient's immune response to p53 antigens.

  9. A Study of Complete Video-Assisted Thoracoscopic Surgery Lobectomy in Treatment of Elderly Patients with Non-Small Cell Lung Cancer: Curative Effect and Impact on Clinical Prognosis.

    Science.gov (United States)

    Xue, Y; Wang, Y Y; Zhang, K; Cong, W; He, B; Zeng, F C

    2015-11-01

    The present study intends to investigate the clinical value of complete video-assisted thoracoscopic surgery (c-VATS) lobectomy in treatment of elderly patients with non-small cell lung cancer (NSCLC). A total of 100 cases of elderly patients with NSCLC admitted in our hospital from March 2012 to March 2014 were enrolled in this study and divided into the research group (n = 50) and control group (n = 50) by random sampling method. All patients in the research group underwent c-VATS lobectomy, while those in the control group underwent conventional lobectomy via thoracotomy. The duration of operation, length of incision, intraoperative blood loss, indwelling time of drainage tube, postoperative complication rate, the number of excised lymph nodes, the time of removing stitches, mean length of stay, and vision analog score (VAS) in two groups were observed and compared. The pulmonary function and arterial blood gas before surgery and six months after surgery in two groups were detected and compared. A regular follow-up study was conducted after surgery. The one-year survival rate in two groups were calculated and compared. The differences in the duration of operation, length of incision, indwelling time of drainage tube, postoperative complication rate, the time of removing stitches, mean length of stay, and VAS score between two groups were statistically significant (all P  0.05). VATS lobectomy has advantages of smaller incision in treatment of NSCLC, faster recovery, and better prognosis compared to traditional therapy.

  10. Value research on thromboelastogram(TEG) in the monitoring of platelet activity variation tendency of PCI surgery patients

    Institute of Scientific and Technical Information of China (English)

    Xing-Bin Zou; He Huang

    2015-01-01

    Objective:To discuss the value research on thromboelastogram (TEG) in the monitoring of platelet activity variation tendency of PCI surgery patients.Method:180 cases of patients with coronary heart disease who have proceeded PCI surgery were selected and divided into AMI group, UAP group and AP group. To compare the coagulation indicator, TEG and pathological changes of these three groups; all patients were adopted conventional therapy, after operation, divided them into anti-platelet low reaction group (platelet high reaction group) and normal group according to platelet aggregation rate monitored by TEG, and compared the clotting all items, clinical indicator, PCI postoperative platelet aggregation inhibition rate and clinical ischemia cases occurrence rate within 6 months follow up visit of both groups.Results: TEG parametric R value and K value in AMI group and UAP group were obviously lower than that in AP group, MA value and angle value were obviously higher than AP group, significant difference; TEG image in AMI group and UAP group mainly featured hypercoagulability, while TEG image had no hypercoagulability in AP group; Chi-square test showed that hypercoagulability image percentage differences between these three groups had statistical significance; ADP and AA induced platelet inhibition rate determined by TEG in high reaction group was obviously lower than that in normal group; 6 cases in platelet high reaction group: CK-MB rose and exceeded normal value upper limit (10.90%), 9 cases: cTnI rose and exceeded normal value upper limit (19.6%), compared with normal group (3 cases, 2.4%; 5 cases, 4%), the value in platelet high reaction group was higher, and the difference was significant; platelet high reaction group: totally 10 cases of ischemia, occurrence rate was 10.5%, while platelet normal reaction group: totally 3 cases (2.4%), chi-square test showed that the difference between these two groups had statistical significance

  11. The feasibility of sugammadex for general anesthesia and facial nerve monitoring in patients undergoing parotid surgery

    Directory of Open Access Journals (Sweden)

    I-Cheng Lu

    2017-08-01

    Fifty patients undergoing parotid surgery were randomized allocated into conventional anesthesia group (Group C, n = 25 and sugammadex group (Group S, n = 25. Group C did not receive any NMBA. Group S received rocuronium 0.6 mg/kg at anesthesia induction and sugammadex 2 mg/kg at skin incision. The intubating condition and influence on FNM evoked EMG results were compared between groups. The intubation condition showed significantly better in group S patients than C group patients (excellent in 96% v.s. 24%. In group S, rapid reverse of NMB was found and the twitch (% recovered from 0 to >90% within 10 min. Positive and high EMG signals were obtained in all patients at the time point of initial facial nerve stimulation in both groups. There was no significant difference as comparing the EMG amplitudes detected at the time point of initial and final facial nerve stimulation in both groups. Implementation of sugammadex in anesthesia protocol is feasible and reliable for successful FNM during parotid surgery.

  12. Effectiveness of skin perfusion pressure monitoring during surgery for an ischemic steal syndrome associated refractory ulcer.

    Science.gov (United States)

    Okubo, Kentaro; Sato, Takashi; Matsubara, Chieko; Tsuboi, Masato; Ishii, Yasuo; Tojimbara, Tamotsu

    2015-01-01

    We describe an 80-year-old man with end-stage renal disease due to type 2 diabetes who had been maintained on hemodialysis for 9 years. He developed refractory ulcers from an abraded wound in the right hand of his access arm. The arteriovenous fistula (AVF) was located between the right brachial artery and the median antecubital vein draining into the cephalic vein and the deep veins close to the elbow. The blood flow of the right brachial artery measured by using Doppler ultrasonography was 920 ml/min. On the contrary, the radial and ulnar arteries were poorly palpable near the wrist, and ultrasonography could not be performed accurately because of a high degree of calcification. The skin perfusion pressure (SPP) of the first finger on the affected side decreased to 22 mmHg. However, the SPP improved to approximately 40 mmHg upon blocking an inflow into the deep vein. According to SPP data, only a communicating branch of the deep vein was ligated, and the AVF itself was preserved. One month after surgery, the skin ulcer healed, and maintenance hemodialysis was performed by using the preserved cephalic vein for blood access.In conclusion, we successfully treated a refractory wound associated with steal syndrome, without terminating the AVF. SPP-guided surgery may be safe and effective to adjust the blood flow in patients with AVF having steal syndrome.

  13. Evaluation of two methods of rapid blood-glucose monitoring by unskilled personnel during surgery

    DEFF Research Database (Denmark)

    Madsbad, S; Adelhøj, B; Bigler, Dennis Richard

    1984-01-01

    The accuracy of two rapid methods of blood-glucose monitoring without (Haemo-glucotest 1-44) and with a reflectance meter (Hypocount B) was compared using a laboratory method. The assessment was carried out by personnel with no previous experience in measuring blood glucose. Eighty-five percent...

  14. [Intraoperative monitoring: visual evoked potentials in surgery of the sellar region].

    Science.gov (United States)

    Lorenz, M; Renella, R R

    1989-01-01

    During 18 sellar and perisellar operations the optic tract was monitored by visual evoked potentials (VEP). Deteriorations of the cortical responses were recorded in 73%. In this patients there was no close correlation between the intraoperative findings and the postoperative visual function. Only in those patients who showed no remarkable intraoperative changes VEP seemed to be of reliable prognostic value.

  15. Increase in number of circulating disseminated epithelial cells after surgery for non-small cell lung cancer monitored by MAINTRAC® is a predictor for relapse: A preliminary report

    Directory of Open Access Journals (Sweden)

    Höffken Klaus

    2005-03-01

    Full Text Available Abstract Background Lung cancer still remains one of the most commonly occurring solid tumors and even in stage Ia, surgery fails in 30% of patients who develop distant metastases. It is hypothesized that these must have developed from occult circulating tumor cells present at the time of surgery, or before. The aim of the present study was to detect such cells in the peripheral blood and to monitor these cells following surgery. Methods 30 patients treated for lung cancer with surgery were monitored for circulating epithelial cells (CEC by taking peripheral blood samples before, 2 weeks and 5 months after surgery and/or radiotherapy (RT chemotherapy (CT or combined RT/CT using magnetic bead enrichment and laser scanning cytometry (MAINTRAC® for quantification of these cells. Results In 86% of the patients CEC were detected before surgery and in 100% at 2 weeks and 5 months after surgery. In the control group, which consisted of 100 normal donors without cancer, 97 % were negative for CEC. A significantly higher number of CEC was found preoperatively in patients with squamous cell carcinoma than in those with adenocarcinoma. In correlation to the extent of parenchymal manipulation 2 weeks after surgery, an increase in numbers of CEC was observed with limited resections (18/21 whereas pneumonectomy led to a decrease (5/8 of CEC, 2 weeks after surgery. The third analysis done 5 months after surgery identified 3 groups of patients. In the group of 5 patients who received neo- or adjuvant chemo/radiotherapy there was evidence that monitoring of CEC can evaluate the effects of therapy. Another group of 7 patients who underwent surgery only showed a decrease of CEC and no signs of relapse. A third group of 11 patients who had surgery only, showed an increase of CEC (4 with an initial decrease after surgery and 7 with continuous increase. In the group with a continuous increase during the following 24 months, 2 early relapses in patients with stage Ia

  16. Optimizing Mouse Surgery with Online Rectal Temperature Monitoring and Preoperative Heat Supply. Effects on Post-Ischemic Acute Kidney Injury.

    Science.gov (United States)

    Marschner, Julian A; Schäfer, Hannah; Holderied, Alexander; Anders, Hans-Joachim

    2016-01-01

    Body temperature affects outcomes of tissue injury. We hypothesized that online body core temperature recording and selective interventions help to standardize peri-interventional temperature control and the reliability of outcomes in experimental renal ischemia reperfusion injury (IRI). We recorded core temperature in up to seven mice in parallel using a Thermes USB recorder and ret-3-iso rectal probes with three different protocols. Setup A: Heating pad during ischemia time; Setup B: Heating pad from incision to wound closure; Setup C: A ventilated heating chamber before surgery and during ischemia time with surgeries performed on a heating pad. Temperature profile recording displayed significant declines upon installing anesthesia. The profile of the baseline experimental setup A revealed that temperature readings were within the target range of 36.5 to 38.5°C. Setup B and C increased the target range readings to 34.6 ± 28.0% and 99.3 ± 1.5%, respectively. Setup C significantly increased S3 tubular necrosis, neutrophil influx, and mRNA expression of kidney injury markers. In addition, using setup C different ischemia times generated a linear correlation with acute tubular necrosis parameters at a low variability, which further correlated with the degree of kidney atrophy 5 weeks after surgery. Changing temperature control setup A to C was equivalent to 10 minutes more ischemia time. We conclude that body temperature drops quickly in mice upon initiating anesthesia. Immediate heat supply, e.g. in a ventilated heating chamber, and online core temperature monitoring can help to standardize and optimize experimental outcomes.

  17. Thoracic Paravertebral Block, Multimodal Analgesia, and Monitored Anesthesia Care for Breast Cancer Surgery in Primary Lateral Sclerosis

    Directory of Open Access Journals (Sweden)

    Anis Dizdarevic

    2016-01-01

    Full Text Available Objective. Primary lateral sclerosis (PLS is a rare idiopathic neurodegenerative disorder affecting upper motor neurons and characterized by spasticity, muscle weakness, and bulbar involvement. It can sometimes mimic early stage of more common and fatal amyotrophic lateral sclerosis (ALS. Surgical patients with a history of neurodegenerative disorders, including PLS, may be at increased risk for general anesthesia related ventilatory depression and postoperative respiratory complications, abnormal response to muscle relaxants, and sensitivity to opioids, sedatives, and local anesthetics. We present a case of a patient with PLS and recent diagnosis of breast cancer who underwent a simple mastectomy surgery uneventfully under an ultrasound guided thoracic paravertebral block, multimodal analgesia, and monitored anesthesia care. Patient reported minimal to no pain or discomfort in the postoperative period and received no opioids for pain management before being discharged home. In patients with PLS, thoracic paravertebral block and multimodal analgesia can provide reliable anesthesia and effective analgesia for breast surgery with avoidance of potential risks associated with general anesthesia, muscle paralysis, and opioid use.

  18. Thoracic Paravertebral Block, Multimodal Analgesia, and Monitored Anesthesia Care for Breast Cancer Surgery in Primary Lateral Sclerosis

    Science.gov (United States)

    Fernandes, Anthony

    2016-01-01

    Objective. Primary lateral sclerosis (PLS) is a rare idiopathic neurodegenerative disorder affecting upper motor neurons and characterized by spasticity, muscle weakness, and bulbar involvement. It can sometimes mimic early stage of more common and fatal amyotrophic lateral sclerosis (ALS). Surgical patients with a history of neurodegenerative disorders, including PLS, may be at increased risk for general anesthesia related ventilatory depression and postoperative respiratory complications, abnormal response to muscle relaxants, and sensitivity to opioids, sedatives, and local anesthetics. We present a case of a patient with PLS and recent diagnosis of breast cancer who underwent a simple mastectomy surgery uneventfully under an ultrasound guided thoracic paravertebral block, multimodal analgesia, and monitored anesthesia care. Patient reported minimal to no pain or discomfort in the postoperative period and received no opioids for pain management before being discharged home. In patients with PLS, thoracic paravertebral block and multimodal analgesia can provide reliable anesthesia and effective analgesia for breast surgery with avoidance of potential risks associated with general anesthesia, muscle paralysis, and opioid use. PMID:27200193

  19. Comparison of Dexmedetomidine and Propofol for hemodynamic changes and depth of an a esthesia (using BIS monitor during laparoscopic surgery

    Directory of Open Access Journals (Sweden)

    Dr Shah Vandana

    2015-01-01

    Full Text Available Abstract: Introduction: Laparoscopy is one of the commonest surgical procedures includes creation of pneumoperitoneum with carbon dioxide which in turns causes hemodynamic instability. To manage this instability, several drugs are tried and used. Dexmedetomidine, a selective α -2 agonist, is used for sedation and hemodynamic stability. Aims: This study aims to compare the effect of i.v. Dexmedetomidine and propofol infusion on heart rate and blood pressure attenuation and depth of anesthesia using BIS monitor during laparoscopic surgery. Material and Method: 50 patients of ASA grade I/II divided in to two groups. Group D (n=25 received Dexmedetomidine 1 mcg/kg/10min loading dose followed by 0.2 –0.7 mcg/kg/min infusion. Group P (n=25 received 25 -75mcg/kg/min propofol infusion. Observation: Up to 30 minutes of surgery heart rate stability was better in group D, after 30 minutes it was comparable in both the groups. Mean arterial pressure was better maintained up to 75 minutes in group D, after 75 minutes it was comparable in both the groups. Conclusion : Dexmedetomidine infusion attenuates hemodynamic response to laryngoscopy and pneumoperitoneum with adequate depth of anesthesia better than propofol.

  20. Surgery for pancreatic cancer

    Science.gov (United States)

    ... using a tiny video camera) or using a robot depends on: The extent of the surgery The ... Procedure Meet with your doctor to make sure medical problems, such as diabetes, high blood pressure, and ...

  1. Hemodynamic monitoring and management in patients undergoing high risk surgery: a survey among North American and European anesthesiologists.

    Science.gov (United States)

    Cannesson, Maxime; Pestel, Gunther; Ricks, Cameron; Hoeft, Andreas; Perel, Azriel

    2011-08-15

    Several studies have demonstrated that perioperative hemodynamic optimization has the ability to improve postoperative outcome in high-risk surgical patients. All of these studies aimed at optimizing cardiac output and/or oxygen delivery in the perioperative period. We conducted a survey with the American Society of Anesthesiologists (ASA) and the European Society of Anaesthesiology (ESA) to assess current hemodynamic management practices in patients undergoing high-risk surgery in Europe and in the United States. A survey including 33 specific questions was emailed to 2,500 randomly selected active members of the ASA and to active ESA members. Overall, 368 questionnaires were completed, 57.1% from ASA and 42.9% from ESA members. Cardiac output is monitored by only 34% of ASA and ESA respondents (P = 0.49) while central venous pressure is monitored by 73% of ASA respondents and 84% of ESA respondents (P < 0.01). Specifically, the pulmonary artery catheter is being used much more frequently in the US than in Europe in the setup of high-risk surgery (85.1% vs. 55.3% respectively, P < 0.001). Clinical experience, blood pressure, central venous pressure, and urine output are the most widely indicators of volume expansion. Finally, 86.5% of ASA respondents and 98.1% of ESA respondents believe that their current hemodynamic management could be improved. In conclusion, these results point to a considerable gap between the accumulating evidence about the benefits of perioperative hemodynamic optimization and the available technologies that may facilitate its clinical implementation, and clinical practices in both Europe and the United States.

  2. Computerized monitoring of physical activity and sleep in postoperative abdominal surgery patients

    DEFF Research Database (Denmark)

    Bisgaard, T; Kjaersgaard, M; Bernhard, A

    1999-01-01

    .15). In both study groups, all correlation coefficients between actigraphy measurements and self-reported activity data were statistically significant (r, values for patients 0.4 to 0.8 and volunteers 0.6 to 0.9). A higher mean agreement between automated actigraphy sleep detection and self-reported sleep...... registration were found in the volunteers (85%, SD 15%) compared with the patients (77%, SD 11%) (p value awake was higher in the volunteers than in the patients (p ...: The study included twelve hospitalized patients after major abdominal surgery studied on day 2 to 4 after operation and twelve unhospitalized healthy volunteers. Measurements were performed for 24 consecutive hours. The actigraphy measurements were compared with self-reported activity- and sleep...

  3. Artificial Video for Video Analysis

    Science.gov (United States)

    Gallis, Michael R.

    2010-01-01

    This paper discusses the use of video analysis software and computer-generated animations for student activities. The use of artificial video affords the opportunity for students to study phenomena for which a real video may not be easy or even possible to procure, using analysis software with which the students are already familiar. We will…

  4. Value of visual evoked potential monitoring during trans-sphenoidal pituitary surgery.

    Science.gov (United States)

    Chacko, A G; Babu, K S; Chandy, M J

    1996-06-01

    The visual outcome of 22 patients undergoing trans-sphenoidal excision of pituitary macroadenomas with intraoperative flash visual evoked potential (VEP) monitoring (Group A), was compared with a non-randomized group of 14 patients who had undergone similar operations without VEP monitoring (Group B). Tumour size, preoperative visual acuity, peripheral fields, and latencies and amplitudes of P1 and P2 were analysed to ascertain the best predictor of postoperative visual function. It was found that patients in Group A had a significantly greater improvement in field defects than those in Group B. There was no difference in postoperative improvement in visual acuity between the two groups. None of the variables analysed were good predictors of visual outcome.

  5. Synchronised electrical monitoring and high speed video of bubble growth associated with individual discharges during plasma electrolytic oxidation

    Science.gov (United States)

    Troughton, S. C.; Nominé, A.; Nominé, A. V.; Henrion, G.; Clyne, T. W.

    2015-12-01

    Synchronised electrical current and high speed video information are presented from individual discharges on Al substrates during PEO processing. Exposure time was 8 μs and linear spatial resolution 9 μm. Image sequences were captured for periods of 2 s, during which the sample surface was illuminated with short duration flashes (revealing bubbles formed where the discharge reached the surface of the coating). Correlations were thus established between discharge current, light emission from the discharge channel and (externally-illuminated) dimensions of the bubble as it expanded and contracted. Bubbles reached radii of 500 μm, within periods of 100 μs, with peak growth velocity about 10 m/s. It is deduced that bubble growth occurs as a consequence of the progressive volatilisation of water (electrolyte), without substantial increases in either pressure or temperature within the bubble. Current continues to flow through the discharge as the bubble expands, and this growth (and the related increase in electrical resistance) is thought to be responsible for the current being cut off (soon after the point of maximum radius). A semi-quantitative audit is presented of the transformations between different forms of energy that take place during the lifetime of a discharge.

  6. Fuzzy logic and optical correlation-based face recognition method for patient monitoring application in home video surveillance

    Science.gov (United States)

    Elbouz, Marwa; Alfalou, Ayman; Brosseau, Christian

    2011-06-01

    Home automation is being implemented into more and more domiciles of the elderly and disabled in order to maintain their independence and safety. For that purpose, we propose and validate a surveillance video system, which detects various posture-based events. One of the novel points of this system is to use adapted Vander-Lugt correlator (VLC) and joint-transfer correlator (JTC) techniques to make decisions on the identity of a patient and his three-dimensional (3-D) positions in order to overcome the problem of crowd environment. We propose a fuzzy logic technique to get decisions on the subject's behavior. Our system is focused on the goals of accuracy, convenience, and cost, which in addition does not require any devices attached to the subject. The system permits one to study and model subject responses to behavioral change intervention because several levels of alarm can be incorporated according different situations considered. Our algorithm performs a fast 3-D recovery of the subject's head position by locating eyes within the face image and involves a model-based prediction and optical correlation techniques to guide the tracking procedure. The object detection is based on (hue, saturation, value) color space. The system also involves an adapted fuzzy logic control algorithm to make a decision based on information given to the system. Furthermore, the principles described here are applicable to a very wide range of situations and robust enough to be implementable in ongoing experiments.

  7. Design and Realization of an Embedded Video Monitoring System Based on Internet%基于Internet的嵌入式视频监控系统的设计与实现

    Institute of Scientific and Technical Information of China (English)

    李波

    2013-01-01

    An embedded video monitoring system, which takes ARM9 microprocessor and embedded Linux operating system as development platform, is designed and realized in the paper. The system based on Brower/Server structure, using Boa as embed?ded Web server completes the transmission of video data over the Internet. The building process of system hardware and software platform is introduced. The process of video data collection using Video4Linux programming interface and the method of using JPEG to compress the video data are discussed in detail. The test results show that the function and performance of the system can meet application requirements.%该文以ARM9微处理器和嵌入式Linux系统作为开发平台设计并实现了一个视频监控系统,系统基于Brower/Server结构,使用Boa作为嵌入式Web服务器完成视频数据在Internet上的传输.介绍了系统硬件平台和软件平台的搭建过程,详细讨论了使用Video4Linux编程接口完成对视频数据的采集过程,以及利用JPEG标准对视频数据进行压缩的方法.测试结果表明系统功能及性能基本满足应用要求.

  8. Design of Video Server and Network Terminal of Digital Microwave Monitor System%数字微波监控系统视频服务器与网络终端设计

    Institute of Scientific and Technical Information of China (English)

    韦琳; 邹玲; 郑伟

    2013-01-01

    A digital monitor system was designed.Based on the internet,the monitoring system realized the video remote real-time transmission,storage,recording and control of the remote terminal and maintenance.The video server was mainly used for supporting the front end video surveillance and network terminal of video transmission and control command response.Network terminal was used to display and control remote monitor video information.It can meet the needs of remote monitoring of the flexibility and adaptability.For the development of the server,the thread pool critical section mutually exclusive design was employed to achieve the synchronization of multiple threads in order to improve the system performance.The H.264 code was applied for video-encoding and video-decoding.And real-time transport protocol RTP/RTCP was used for the monitoring of remote transmission of data,thereby ensuring remote monitoring information of high quality and high efficiency of the real-time transmission.%设计了一种数字微波监控系统,通过以太网卡实现视频的实时传输、存储录制及远程终端的控制与维护,视频服务器主要用于支持前端视频监控和网络终端对视频的传输与控制命令的响应,而网络终端实现监控视频的查看和控制,能够满足远程监控的灵活性和适应性.对于服务器的开发,使用线程池临界区互斥设计实现多线程的同步,从而提高系统运行的性能.其视频的编解码采用H.264,监控数据的远程传输则采用RTP/RTCP,从而保证远程监控信息高质量和高效率的实时传输.

  9. Ecological Assessment of Autonomy in Instrumental Activities of Daily Living in Dementia Patients by the Means of an Automatic Video Monitoring System.

    Science.gov (United States)

    König, Alexandra; Crispim-Junior, Carlos Fernando; Covella, Alvaro Gomez Uria; Bremond, Francois; Derreumaux, Alexandre; Bensadoun, Gregory; David, Renaud; Verhey, Frans; Aalten, Pauline; Robert, Philippe

    2015-01-01

    Currently, the assessment of autonomy and functional ability involves clinical rating scales. However, scales are often limited in their ability to provide objective and sensitive information. By contrast, information and communication technologies may overcome these limitations by capturing more fully functional as well as cognitive disturbances associated with Alzheimer disease (AD). We investigated the quantitative assessment of autonomy in dementia patients based not only on gait analysis but also on the participant performance on instrumental activities of daily living (IADL) automatically recognized by a video event monitoring system (EMS). Three groups of participants (healthy controls, mild cognitive impairment, and AD patients) had to carry out a standardized scenario consisting of physical tasks (single and dual task) and several IADL such as preparing a pillbox or making a phone call while being recorded. After, video sensor data were processed by an EMS that automatically extracts kinematic parameters of the participants' gait and recognizes their carried out activities. These parameters were then used for the assessment of the participants' performance levels, here referred as autonomy. Autonomy assessment was approached as classification task using artificial intelligence methods that takes as input the parameters extracted by the EMS, here referred as behavioral profile. Activities were accurately recognized by the EMS with high precision. The most accurately recognized activities were "prepare medication" with 93% and "using phone" with 89% precision. The diagnostic group classifier obtained a precision of 73.46% when combining the analyses of physical tasks with IADL. In a further analysis, the created autonomy group classifier which obtained a precision of 83.67% when combining physical tasks and IADL. Results suggest that it is possible to quantitatively assess IADL functioning supported by an EMS and that even based on the extracted data the

  10. Monitoring of behavior using a video-recording system for recognition of Salmonella infection in experimentally infected growing pigs.

    Science.gov (United States)

    Ahmed, S T; Mun, H-S; Yoe, H; Yang, C-J

    2015-01-01

    Behavior is one of the most commonly used indicators of illness; however, few studies have investigated how different common diseases affect animal behavior. This experiment was conducted to investigate behavioral and clinical alterations in growing pigs experimentally infected with Salmonella spp. during a 4-week post-infection period. A total of 48 growing pigs were divided into one of the three treatment groups (1) control, (2) infection with Salmonella Typhimurium or (3) infection with Salmonella Enteritidis. Individual pigs' behavior was recorded daily (0900 to 1100 and 1600 to 1800 h) using a video-recording system. Pigs in both infected groups had lower weight gain and feed intake during week 0 to 2 and 0 to 4 experimental period. Bacteriological data revealed that pigs in both infected groups persistently shed bacteria throughout the period of study. Oral infection of growing pigs with S. Typhimurium and S. Enteritidis significantly reduced the frequency of morning large (except week 1) and small movement throughout the study period. In the evening, significantly lowest frequency of movements were observed in the S. Enteritidis-infected group compared with the control. The standing and sitting frequency were significantly lower in both infected groups only at the morning of week 4. Infection with Salmonella spp. led to a significant reduction in the frequency and duration of morning eating and drinking throughout the experimental period, with the exception of 4th week drinking duration. The lowest frequency of evening eating during week 1 and 4 was recorded in both infected groups; whereas, the duration differed only at week 1. The evening drinking frequency only tended to decrease in response to S. Typhimurium infection at week 1. This study shows that, pigs infected with Salmonella spp. had poor performance, shedding high levels of Salmonella with their feces and reduced feeding and drinking activity, which are adaptive responses to infection and may help

  11. Monitoring recovery after laser surgery of the breast with optical tomography: a case study

    Science.gov (United States)

    Hebden, Jeremy C.; Yates, Tara D.; Gibson, Adam; Everdell, Nicholas; Arridge, Simon R.; Chicken, Dennis W.; Douek, Michael; Keshtgar, Mohammed R. S.

    2005-04-01

    Results are presented of a study to monitor the changes in the optical properties of breast tissue over a 12-month period after interstitial laser photocoagulation treatment of a fibroadenoma. The study involved generating cross-sectional images of the breast with a multichannel time-resolved imaging system and a nonlinear image reconstruction algorithm. Images of the internal absorbing and scattering properties revealed the expected initial inflammatory response, followed by the development of low-scattering cysts consistent with corresponding ultrasound examinations. Although results indicate that purely qualitative images can potentially provide clinically valuable data, means of enhancing diagnostic information by overcoming present limitations of the approach are discussed.

  12. Immersive video

    Science.gov (United States)

    Moezzi, Saied; Katkere, Arun L.; Jain, Ramesh C.

    1996-03-01

    Interactive video and television viewers should have the power to control their viewing position. To make this a reality, we introduce the concept of Immersive Video, which employs computer vision and computer graphics technologies to provide remote users a sense of complete immersion when viewing an event. Immersive Video uses multiple videos of an event, captured from different perspectives, to generate a full 3D digital video of that event. That is accomplished by assimilating important information from each video stream into a comprehensive, dynamic, 3D model of the environment. Using this 3D digital video, interactive viewers can then move around the remote environment and observe the events taking place from any desired perspective. Our Immersive Video System currently provides interactive viewing and `walkthrus' of staged karate demonstrations, basketball games, dance performances, and typical campus scenes. In its full realization, Immersive Video will be a paradigm shift in visual communication which will revolutionize television and video media, and become an integral part of future telepresence and virtual reality systems.

  13. CONTINUOUS HOLTER MONITORING OF PATIENTS WITH CARDIOVASCULAR DISEASES IN ORAL SURGERY

    Directory of Open Access Journals (Sweden)

    Hristo Daskalov

    2011-09-01

    Full Text Available Introduction. Pain control and anxiety management are important aspects of modern dental treatment. Although many local anesthetics and anesthesia techniques have so far been studied, there is still no clarity as to what anesthetic should be used in cardiovascularly compromised patients. This anesthetic and its dosage should be very carefully chosen to achieve optimal effective pain control; the possible side effects occurring mainly in morbidly compromised patients should also be well studied.Methods. The aim of this study was to study the effect of vasoconstrictors on local anesthetics in 18 patients with heart diseases. The study contingent was recruited from the patients visiting often their general dental practitioners and diagnosed with the following heart diseases: Heart failure (after 6 months; ischemic heart disease, including mild angina pectoris. Articaine was used as local anesthetic. Results. The ST segment on the ECG was used to detect myocardial ischemia and to study the effect of the administered local anesthesia.Conclusion. The study results suggest that pain control in a cardiovascularly compromised patient subjected to oral surgery should be carried out only after thorough analysis is conducted of the specific condition and current status of the patient. Additional hematological tests shoud be done to enable the dentist to build a viable treatment plan.

  14. Comparison of dexmedetomidine and midazolam for conscious sedation in dental surgery monitored by bispectral index.

    Science.gov (United States)

    Fan, Tai Weng Victor; Ti, Lian Kah; Islam, Intekhab

    2013-07-01

    Although various sedative drugs in different regimens and given by different delivery routes have been used for conscious sedation, the ideal agent and regimen remain to be established. This study was designed to compare the efficacy (sedation, anxiolysis, analgesia, operating conditions, and patients' satisfaction) and safety of midazolam and dexmedetomidine as sedatives for dental procedures in a randomised, double-blind study in third molar and dental implant surgery. Sixty healthy patients who were American Society of Anesthesiologists (ASA) group I or II were enrolled and we recorded their personal details, the amount of drug used, their degree of satisfaction, duration of operation, and haemodynamic and respiratory variables. The two groups were comparable. The amount of local anaesthetic (p=0.11) and the duration of operation did not differ significantly (p=0.32). The patients in the dexmedetomidine group had a slower heart rate, lower systolic and diastolic pressure, and cooperated better. There were no significant differences in their respiratory rates, bispectral index, and total volume of drugs used. We conclude that dexmedetomidine works as well as midazolam for outpatient dental procedures and can be used as an alternative to midazolam.

  15. The Plan for the Societal Monitor Video Transmission System Which is Based on the Radio ,& Television Network%基于广电网络的社会面监控视频传输系统方案

    Institute of Scientific and Technical Information of China (English)

    周华良

    2011-01-01

    With the development of the triple play, to launch a new value - added service model which is completely based on the remote video monitoring, transmission, stock, management of broadband network. MAN ( Metropolitan Area Network) and IP video transmission network which is adopt the technology of EPON transmission is the fundamental of this new model service. Through monitoring system, to accomplish broadband ap- plication business which is according as monitoring, controlling, security protection and intelligent management to monitor the target. The article mainly introduced the network transmission plan and function for the so- cietal monitor video transmission system in Danvang.%随着三网融合的不断推进,需要基于广电城域网和IP视频传输网络,建立一个完全基于广电宽带网的新型增值业务模式,通过网络化视频监控系统,对监控目标进行监视、控制、安全防范及智能管理,主要介绍丹阳市社会面视频监控系统的网络传输方案和主要功能。

  16. Psychosocial trajectories of men monitoring prostate-specific antigen levels following surgery for prostate cancer.

    Science.gov (United States)

    Bailey, Donald E; Wallace Kazer, Meredith; Polascik, Thomas J; Robertson, Cary

    2014-07-01

    To describe the psychosocial trajectories of men treated surgically for prostate cancer after monitoring their prostate-specific antigen (PSA) levels until 24 months post-treatment. Descriptive longitudinal study. Urology clinic at Duke University Health System. 12 men diagnosed and treated for prostate cancer. Men were interviewed in their homes at baseline and at 24 months and via telephone at 6, 12, and 18 months. Scores from the Profile of Mood States, Mishel Uncertainty in Illness Scale, Self-Control Schedule, and Cantril's Ladder were entered into a database for analysis. Graphs of individual participants' scores were plotted. PSA values, mood state, cognitive reframing, impact of event, quality of life, illness uncertainty, and growth through uncertainty were measured. Three trajectories were identified (i.e., stable, unstable, and mixed) and graphed using a typological or health pattern approach. Monitoring PSA levels is critical for men treated for prostate cancer. This study provides preliminary data on the psychological trajectories of men during the first 24 months postprostatectomy. Rising PSA levels that are associated with the recurrence of disease can cause psychosocial distress among men with prostate cancer.

  17. Preventing Blood Clots After Orthopaedic Surgery

    Medline Plus

    Full Text Available ... Bones & Injuries Diseases & Conditions Arthritis Tumors Sports Injuries & Prevention Children Bone Health Health & Safety Treatment Treatments & Surgeries ... video provides additional information about DVT and its prevention. This video © American Academy of Orthopaedic Surgeons. Many ...

  18. Cirurgia cardíaca videoassistida: 6 anos de experiência Video-assisted cardiac surgery: 6 years of experience

    Directory of Open Access Journals (Sweden)

    Jeronimo Antonio Fortunato Júnior

    2012-03-01

    Full Text Available INTRODUÇÃO: A cirurgia cardíaca minimamente invasiva e videoassistida (CCVA tem aumentado em popularidade nos últimos 15 anos. As pequenas incisões têm sido associadas a um bom efeito estético e menor trauma cirúrgico, consequentemente, menor dor e rápida recuperação pós-operatória. OBJETIVOS: Apresentar nossa casuística com CCVA, após 6 anos de uso do método. MÉTODOS: Cento e trinta e seis pacientes foram submetidos à CCVA, após consentimento escrito, entre setembro de 2005 e outubro de 2011, sendo 50% do sexo masculino, com idade de 47,8 ± 15,4 anos, divididos em dois grupos: com circulação extracorpórea (CEC (GcCEC=105 pacientes: valvopatia mitral (47/105, valvopatia aórtica (39/105 e cardiopatia congênita (19/105 e sem CEC (GsCEC=31 pacientes: ressincronização cardíaca (18/31, tumor cardíaco (4/31 e revascularização miocárdica minimamente invasiva (6/31. No GcCEC, foi realizada minitoracotomia direita (3 a 5 cm e acesso femoral para canulação periférica. RESULTADOS: No GcCEC, a média de dias em UTI (DUTI e de internação hospitalar (DH foi, respectivamente, 2,4 ± 4,5 dias e 5,0 ± 6,8 dias. Doze pacientes apresentaram complicações no pós-operatório e cinco (4,8% foram a óbito. Noventa e três (88,6% pacientes evoluíram sem intercorrências, foram extubados no centro cirúrgico, permanecendo 1,8 ± 0,9 DUTI e 3,6 ± 1,3 DH. No GsCEC, foram 1,3 ± 0,7 DUTI e 2,9 ± 1,4 DH, sem intercorrências ou óbitos. CONCLUSÃO: Os resultados encontrados nesta casuística são comparáveis aos da literatura mundial e confirmam o método como opção à técnica convencional.INTRODUCTION: Minimally invasive and video-assisted cardiac surgery (VACS has increased in popularity over the past 15 years. The small incisions have been associated with a good aesthetic effect and less surgical trauma, therefore less postoperative pain and rapid recovery. OBJECTIVES: To present our series with VACS, after 6 years of use of

  19. Augmentation of motor evoked potentials using multi-train transcranial electrical stimulation in intraoperative neurophysiologic monitoring during spinal surgery.

    Science.gov (United States)

    Tsutsui, Shunji; Iwasaki, Hiroshi; Yamada, Hiroshi; Hashizume, Hiroshi; Minamide, Akihito; Nakagawa, Yukihiro; Nishi, Hideto; Yoshida, Munehito

    2015-02-01

    Transcranial motor evoked potentials (TcMEPs) are widely used to monitor motor function during spinal surgery. Improvements in transcranial stimulation techniques and general anesthesia have made it possible to record reliable and reproducible potentials. However, TcMEPs are much smaller in amplitude compared with compound muscle action potentials (CMAPs) evoked by maximal peripheral nerve stimulation. In this study, multi-train transcranial electrical stimulation (mt-TES) was introduced to enhance TcMEPs, and the optimal setting of mt-TES was investigated. In 30 patients undergoing surgical correction of spinal deformities (4 males and 26 females with normal motor status; age range 11-75 years), TcMEPs from the abductor hallucis (AH) and quadriceps femoris (QF) were analyzed. A multipulse (train) stimulus with an individual pulse width of 0.5 ms and an inter-pulse interval of 2 ms was delivered repeatedly (2-7 times) at different rates (2, 5, and 10 Hz). TcMEP amplitudes increased with the number of train stimuli for AH, with the strongest facilitation observed at 5 Hz. The response amplitude increased 6.1 times on average compared with single-train transcranial electrical stimulation (st-TES). This trend was also observed in the QF. No adverse events (e.g., seizures, cardiac arrhythmias, scalp burns, accidental injury resulting from patient movement) were observed in any patients. Although several facilitative techniques using central or peripheral stimuli, preceding transcranial electrical stimulation, have been recently employed to augment TcMEPs during surgery, responses are still much smaller than CMAPs. Changing from conventional st-TES to mt-TES has potential to greatly enhance TcMEP responses.

  20. [Coronary artery bypass surgery: methods of performance monitoring and quality control].

    Science.gov (United States)

    Albert, A; Sergeant, P; Ennker, J

    2009-10-01

    The strength of coronary bypass operations depends on the preservation of their benefits regarding freedom of symptoms, quality of life and survival, over decades. Significant variability of the results of an operative intervention according to the hospital or the operating surgeon is considered a weakness in the procedure. The external quality insurance tries to reach a transparent service providing market through hospital ranking comparability. Widely available information and competition will promote the improvement of the whole quality. The structured dialog acts as a control instrument for the BQS (Federal Quality Insurance). It is launched in case of deviations from the standard references or statistically significant differences between the results of the operations in any hospital and the average notational results. In comparison to the external control the hospital internal control has greater ability to reach a medically useful statement regarding the results of the treatment and to correct the mistakes in time. An online information portal based on a departmental databank (DataWarehouse, DataMart) is an attractive solution for the physician in order to get transparently and timely informed about the variability in the performance.The individual surgeon significantly influences the short- and long-term treatment results. Accordingly, selection, targeted training and performance measurements are necessary.Strict risk management and failure analysis of individual cases are included in the methods of internal quality control aiming to identify and correct the inadequacies in the system and the course of treatment. According to the international as well as our own experience, at least 30% of the mortalities after bypass operations are avoidable. A functioning quality control is especially important in minimally invasive interventions because they are often technically more demanding in comparison to the conventional procedures. In the field of OPCAB surgery

  1. Use of graphical statistical process control tools to monitor and improve outcomes in cardiac surgery.

    Science.gov (United States)

    Smith, Ian R; Garlick, Bruce; Gardner, Michael A; Brighouse, Russell D; Foster, Kelley A; Rivers, John T

    2013-02-01

    Graphical Statistical Process Control (SPC) tools have been shown to promptly identify significant variations in clinical outcomes in a range of health care settings. We explored the application of these techniques to qualitatively inform the routine cardiac surgical morbidity and mortality (M&M) review process at a single site. Baseline clinical and procedural data relating to 4774 consecutive cardiac surgical procedures, performed between the 1st January 2003 and the 30th April 2011, were retrospectively evaluated. A range of appropriate performance measures and benchmarks were developed and evaluated using a combination of CUmulative SUM (CUSUM) charts, Exponentially Weighted Moving Average (EWMA) charts and Funnel Plots. Charts have been discussed at the unit's routine M&M meetings. Risk adjustment (RA) based on EuroSCORE has been incorporated into the charts to improve performance. Discrete and aggregated measures, including Blood Product/Reoperation, major acute post-procedural complications and Length of Stay/Readmissiontools facilitate near "real-time" performance monitoring allowing early detection and intervention in altered performance. Careful interpretation of charts for group and individual operators has proven helpful in detecting and differentiating systemic vs. individual variation. Copyright © 2012 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.

  2. IN VIVO MONITORING OF FOCUSED ULTRASOUND SURGERY USING LOCAL HARMONIC MOTION

    Science.gov (United States)

    Curiel, Laura; Chopra, Rajiv; Hynynen, Kullervo

    2009-01-01

    The present study established the feasibility of a technique for monitoring FUS lesion formation in vivo using localized harmonic motion (LHM) measurements. Oscillatory motion (frequencies between 50 and 300 Hz) was generated within tissues by induction of a periodic radiation force with a focused ultrasound (FUS) transducer. The harmonic motion was estimated using cross-correlation of RF ultrasonic signals acquired at different instances during the motion by using a confocal diagnostic ultrasound transducer. The technique was evaluated in vivo in rabbit muscle (14 locations) in an MR imager for simultaneous ultrasound harmonic motion tracking and MR thermometry. The measured maximum amplitude of the induced harmonic motion before and after the lesion formation was significantly different for all the tested motion frequencies and decreased between 17 and 81% depending on the frequency and location. During the FUS exposure a drop in the maximum amplitude value was observed and a threshold value could be associated to the formation of a thermal lesion. A series of controlled sonications was performed by stopping the exposure when the threshold value in LHM amplitude was reached and the presence of a thermal lesion was confirmed by MR imaging. LHM measurements were also used to perform a spatial scan of the tissues across the exposure region and the thermal lesions could be detected as a reduction in the maximum motion amplitude value at the sonication region. PMID:18805626

  3. 高标清混合视频监控系统的设计与实施%Design and implementation of mixed high-definition and standard-definition video monitoring system

    Institute of Scientific and Technical Information of China (English)

    隋玉敏

    2014-01-01

    The status and new demands of video surveillance system in locomotive manufac-turing companies was analyzed .Based on the characteristics of video surveillance system in locomotive production companies , a mixed high-definition ( HD) and standard -definition ( SD) video monitoring system were designed .A latest high -definition video surveillance technology was applied in the design and implementation , and the new system was compati-ble with the original standard -definition video surveillance systems .The logical structure , general structure and network topology of HD and SD hybrid video surveillance system de -scribed were showed .Issues entailed in upgrading an old video surveillance system in loco-motive manufacturing industry were discussed as well .%分析了机车制造企业目前视频监控系统的现状和新的需求,针对机车制造企业的行业特点设计了高标清混合视频监控系统,在设计和实施中应用了高清视频监控的最新技术,同时做到了与原有标清视频监控系统的兼容。给出了具有一定使用价值的高标清混合视频监控系统的逻辑结构、系统总体结构和网络拓扑结构,提出了旧的视频监控系统在升级改造中应该注意的问题。

  4. Reports on Polysomnograph Combined with Long-term Video Electroencephalogram for Monitoring Nocturnal Sleep-breath Events in 82 Epileptic Patients

    Directory of Open Access Journals (Sweden)

    Hongliang Li

    2013-06-01

    Full Text Available Objective: To investigate the effects of epileptic discharges in sleep of epileptic patients on sleepbreath events. Methods: Polysomnograph (PSG and long-term video electroencephalogram (LTVEEG were used to monitor 82 adult epileptic patients. The condition of paroxysmal events in nocturnal sleep was analyzed, and the epileptiform discharge and effects of antiepileptic drugs were explored. Results: In epileptic group, latency to persistent sleep (LPS and REM sleep latency increased, the proportion of light sleep increased while that of deep sleep decreased, sleep efficiency reduced, nocturnal arousal times increased and apnea hyponea indexes (AHI improved, which demonstrated significant differences by comparison to control group. Periodic leg movements (PLM had no conspicuous differences compared with control group. There were no specific effects of epileptiform discharge and antiepileptic drugs on AHI and PLM indexes. Conclusion: Epileptic patients have sleep structure disorders and sleep-disordered breathing, and arousal, respiratory and leg movement events influence mutually. Synchronous detection of PSG combined with LTVEEG is in favor of comprehensively analyzing the relationship between sleep structures and epilepsy-breath events.

  5. Health related quality of life in patients admitted for video-electroencephalography monitoring diagnosed with epilepsy or psychogenic non-epileptic seizures

    Science.gov (United States)

    Yerdelen, Deniz; Altintas, Ebru

    2016-01-01

    Objective: To determine the health related quality of life (HRQOL) in patients with epilepsy or psychogenic non-epileptic seizures (PNES). Methods: This cross-sectional study was carried out between December 2010 and December 2014 in the Department of Neurology and Psychiatry, Faculty of Medicine, Baskent University, Adana, Turkey. Patients who were admitted for video-electroencephalography monitoring and diagnosed of epileptic seizures or PNES were asked to complete a questionnaire from the World Health Organization Quality of Life, and psychiatric comorbidities were diagnosed using the structured clinical interview for Diagnostic and Statistical Manual of Mental Disorders Fourth Edition. Results: Patients with epilepsy and PNES were found to have similar HRQOL in physical, psychological, social, and environmental domains. However, the percentage of comorbid psychiatric disorders were higher in patients with PNES than patients with epilepsy. Conclusion: Patients with epilepsy and PNES have similar HRQOL, and PNES are resistant to the standard medical therapies used for the treatment of epileptic seizures. The direct lifetime cost of undiagnosed PNES may be of equal with intractable epilepsy. A better understanding of the impact of PNES manifestations and epilepsy would help to provide appropriate clinical, psychological and social care. PMID:26818167

  6. Reports on Polysomnograph Combined with Long-term Video Electroencephalogram for Monitoring Nocturnal Sleep-breath Events in 82 Epileptic Patients

    Institute of Scientific and Technical Information of China (English)

    Li Hongliang; Jiang Min; Li Yan; Xu Jianyang; Wang Shouyong; Du Junqiu; Shi Xiangsong

    2013-01-01

    Objective: To investigate the effects of epileptic discharges in sleep of epileptic patients on sleep-breath events. Methods: Polysomnograph (PSG) and long-term video electroencephalogram (LTVEEG) were used to monitor 82 adult epileptic patients. The condition of paroxysmal events in nocturnal sleep was analyzed, and the epileptiform discharge and effects of antiepileptic drugs were explored. Results: In epileptic group, latency to persistent sleep (LPS) and REM sleep latency increased, the proportion of light sleep increased while that of deep sleep decreased, sleep efficiency reduced, nocturnal arousal times increased and apnea hyponea indexes (AHI) improved, which demonstrated significant differences by comparison to control group. Periodic leg movements (PLM) had no conspicuous differences compared with control group. There were no speciifc effects of epileptiform discharge and antiepileptic drugs on AHI and PLM indexes. Conclusion: Epileptic patients have sleep structure disorders and sleep-disordered breathing, and arousal, respiratory and leg movement events inlfuence mutually. Synchronous detection of PSG combined with LTVEEG is in favor of comprehensively analyzing the relationship between sleep structures and epilepsy-breath events.

  7. Analysis of Shaanxi Province Network Video Signal Monitoring and Analysis Platform%浅析陕西省网视频信号监测分析平台

    Institute of Scientific and Technical Information of China (English)

    刘小元; 马越

    2014-01-01

    陕西省网视频信号监测分析平台主要是对有线电视信号的TS流进行分析,将MPTS传输流、TS over IP信号中的带宽、MER、BER等具体参数直观地反映出来,辅助有线电视维护人员及时分析、定位和处理故障,为缩短节目的中断时长与安全播出提供有力的数据支撑。%The Shaanxi provincial network video signal monitoring and analysis platform mainly analyze TS flow of the cable television signals , and show the MPTS transport stream , TS over IP signal bandwidth , MER, BER and other specific parameters directly via visual forms .This helps cable TV maintenance technical staff analy-zing , positioning , processing and solving the faults so as to reduce the length of the disrupted programs and fi-nally to improve system availability as well as to provide a powerful data support .

  8. 全胸腔镜非切割闭合器手术治疗巨型肺大疱临床研究%Clinical research of Non-GIA complete video-assisted thoracic surgery for giant emphysematous bullae

    Institute of Scientific and Technical Information of China (English)

    万来忆; 王强; 吴勇; 曾光; 曹睿; 肖明第

    2015-01-01

    Objective To discuss the effectiveness,feasibility and dependability of Non-GIA complete video-assisted thoracic surgery for giant emphysematous bullae,to describe the surgery details, and to summarize the advantages of the proposed method. Methods The clinical profiles of 59 patients treated at the Department of Thoracic Surgery in Shanghai Yodak Cardiothoracic Hospital during March 2008 to November 2014 were reviewed. Among these patients,35 with multiple bullae or financial problems were treated with Non-GIA surgery while the rest were treated with Endo-GIA as control. Particularly, differences in surgery effect,cost and long-term effect were of our focus. Results Surgeries of all these 59 patients went smoothly and 35 of them were treated with Non-GIA cVATS;no thoracotomy was conducted for any patient,and satisfactory surgical results were observed. 56 patients are followed up for 3 ~79 months after the surgery. The reviewed patients demonstrated lower level of MRC and enhancement in mov-ing capability,and also no more pneumothorax or bullae was observed after the surgery. Although the re-sults of the two groups were similar,the Non-GIA group had an apparent advantage in the cost. Conclusion Non-GIA cVATS is a dependable and feasible surgery for the treatment of giant emphysematous bul-lae. In surgery,the direct cut-out of the bullae and suture of leakage of the basement can maximally pre-serve the normal lung tissue. This surgery method shows good long-term effect and has a significant lower cost compared with Endo-GIA method,and thus can serve as a suitable choice for patients with multiple bullae or finical difficulties.%目的:探讨全胸腔镜非切割闭合器( Non-GIA)手术治疗巨型肺大疱的手术效果及安全可行性,总结手术方法和优势。方法收集巨型肺大疱患者59例,对35例肺大疱多发或经济较困难者行全胸腔镜Non-GIA手术,余24例使用内镜直线切割闭合器( Endo-GIA)作为对照组。

  9. Performance monitoring in hip fracture surgery--how big a database do we really need?

    Science.gov (United States)

    Edwards, G A D; Metcalfe, A J; Johansen, A; O'Doherty, D

    2010-04-01

    Systems for collecting information about patient care are increasingly common in orthopaedic practice. Databases can allow various comparisons to be made over time. Significant decisions regarding service delivery and clinical practice may be made based on their results. We set out to determine the number of cases needed for comparison of 30-day mortality, inpatient wound infection rates and mean hospital length of stay, with a power of 80% for the demonstration of an effect at a significance level of pdata on 1050 hip fracture patients admitted to a city teaching hospital. Detection of a 10% difference in 30-day mortality would require 14,065 patients in each arm of any comparison, demonstration of a 50% difference would require 643 patients in each arm; for wound infections, demonstration of a 10% difference in incidence would require 23,921 patients in each arm and 1127 patients for demonstration of a 50% difference; for length of stay, a difference of 10% would require 1479 patients and 6660 patients for a 50% difference. This study demonstrates the importance of considering the population sizes before comparisons are made on the basis of basic hip fracture outcome data. Our data also help illustrate the impact of sample size considerations when interpreting the results of performance monitoring. Many researchers will be used to the fact that rare outcomes such as inpatient mortality or wound infection require large sample sizes before differences can be reliably demonstrated between populations. This study gives actual figures that researchers could use when planning studies. Statistically meaningful analyses will only be possible with major multi-centre collaborations, as will be possible if hospital Trusts participate in the National Hip Fracture Database.

  10. Corrective Jaw Surgery

    Medline Plus

    Full Text Available AAOMS - Oral and maxillofacial surgeons. The experts in face, mouth and jaw surgery.™ What We Do Who We Are News Videos Contact Find a Surgeon What We ... may require one or more surgeries depending on the extent of the repair needed. Click here to ...

  11. [Monitoring myocardial performance after open heart surgery by calculation of diastolic and systolic pressure time index (author's transl)].

    Science.gov (United States)

    Seybold-Epting, W; Fenchel, G; Stunkat, R; Seboldt, H; Hoffmeister, H E

    1978-10-01

    In order to determine the incidence of subendocardial ischemia after open heart surgery, subendocardial blood flow was monitored in 171 patients subjected to mitral and/or aortic valve replacement or coronary revascularization by on-line calculation of Diastolic (DPTI) and Systolic Pressure Time Index (TTI). Body hypothermia with an esophageal temperature of 25 degrees C and magnesium-aspartate-procaine cardioplegia were applied for myocardial protection. Ten patients developed low cardiac output state with two early deaths. In the two patients with fatal low cardiac output DPTI/TTI remained below 0.8. In the remaining 8 patients DPTI/TTI rose to 1.4 after a mean recovery time of 36 hours. In 161 patients (94%) no low cardiac output state evolved and DPTI/TTI rose to 1.3 within 60 min. after termination of cardiopulmonary bypass. Our results indicate that body hypothermia of 25 degrees C combined with magnesium-aspartate-procaine cardioplegia can reduce the incidence of subendocardial ischemia, but does not prevent this complication completely after anoxic times beyond 60-70 minutes.

  12. Countermeasures of Stimulated-Raman-Scattering-Induced Video Distortion in 1.65 μm Optical Time-domain Reflectometer On-line Monitoring 1.55 μm Cable Television System

    Science.gov (United States)

    Tsai, Szu-Chi; Tu, Yuan-Kuang; Chen, Yung-Kuang

    2003-07-01

    The countermeasures of stimulated-Raman-scattering (SRS)-induced baseband video distortion in the 1.65 μm optical time-domain reflectometer (OTDR) on-line monitoring 1.55 μm amplitude modulation with vestigial sideband (AM-VSB) cable television (CATV) transmission system are investigated theoretically and experimentally. The countermeasures entail the reduction in the optical modulation index (OMI) of the AM transmitter, OTDR peak power and/or pulse width. The results of numerical simulations and experimental measurements are in good agreement. Moreover, the countermeasure for eliminating the SRS-induced baseband video distortion by the 1.31 μm OTDR on-line monitoring technique is investigated and demonstrated.

  13. Pilot study of laser induced breakdown spectroscopy for tissue differentiation by monitoring the plume created during laser surgery — An approach on a feedback Laser control mechanism

    Energy Technology Data Exchange (ETDEWEB)

    Kanawade, Rajesh, E-mail: Rajesh.Kanawade@aot.uni-erlangen.de [Clinical Photonics Lab, Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Str. 6, 91052 Erlangen (Germany); Institute of Photonics Technologies, Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Str. 3, 91052 Erlangen (Germany); Mehari, Fanuel [Master Programme in Advanced Optical Technologies (MAOT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Str. 6, 91052 Erlangen (Germany); Knipfer, Christian; Rohde, Maximilian [Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Glueckstrasse 11, 91054 Erlangen (Germany); Tangermann-Gerk, Katja [Bayerisches Laserzentrum GmbH, Konrad-Zuse-Strasse 2-6, 91052 Erlangen (Germany); Schmidt, Michael [Clinical Photonics Lab, Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Str. 6, 91052 Erlangen (Germany); Institute of Photonics Technologies, Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Str. 3, 91052 Erlangen (Germany); Bayerisches Laserzentrum GmbH, Konrad-Zuse-Strasse 2-6, 91052 Erlangen (Germany); and others

    2013-09-01

    This study focuses on tissue differentiation using ‘Laser Induced Breakdown Spectroscopy’ (LIBS) by monitoring the plasma plume created during laser surgery processes. This technique is aimed at controlling a laser surgery feedback system in real time. An Excimer laser (Ar-F 193 nm) was used for the ablation of tissue samples. Fat, muscle, nerve and skin tissue samples of bisected ex-vivo pig heads were prepared as test objects for the ablation procedure. A single fiber was used to collect emissions and deliver them to a spectrometer. The obtained LIBS spectra in the measured emissions were analyzed to determine each tissue type according to their chemical composition. The elements found in the samples and their emission spectra were in agreement with those described in literature. The collected LIBS spectra were analyzed to differentiate the tissues using statistical data analysis: Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA) and Receiver Operating Characteristics (ROC). The obtained preliminary results suggest a successful differentiation of the target tissues with high sensitivity and specificity. The main goal of this study was to qualitatively identify tissue types during laser ablation, which will provide a real time feedback mechanism for clinical Laser surgery applications to significantly improve the accuracy and safety of laser surgery procedures. - Graphical abstract: Skin, fat, muscle and nerve tissue differentiation. - Highlights: • Methods to differentiate tissues for the application in a laser surgery feedback control system • Successful differentiation of the target tissues with high sensitivity and specificity for laser surgery application • Real time feedback mechanism for clinical Laser surgery applications • Laser surgery requirements • Biomedical applications of LIBS.

  14. In patients undergoing video-assisted thoracic surgery for pleurodesis in primary spontaneous pneumothorax, how long should chest drains remain in place prior to safe removal and subsequent discharge from hospital?

    Science.gov (United States)

    Dearden, Alexander S; Sammon, Peter M; Matthew, Eleanor F

    2013-05-01

    A best evidence topic in thoracic surgery was written according to a structured protocol. The question addressed was how long chest drains should be left in place following video-assisted thoracic surgery (VATS) pleurodesis for primary spontaneous pneumothorax. Altogether, a total of 730 papers were found using the reported search, of which eight represented the best evidence to answer the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relevant outcomes and results of these papers are tabulated. We report that the main determining factor for the length of hospital stay following VATS pleurodesis is chest-drain duration. Providing no postoperative complications occur, and chest X-ray appearances of lung inflation are satisfactory, there is no documented contraindication to removing chest drains as early as 2 days postoperatively, with discharge the following day. Furthermore, leaving chest drains on water seal after a brief period of suction has been shown to benefit in reducing postoperative chest-drain duration and subsequent hospital stay. There is a paucity of literature directly addressing early vs late chest-drain removal protocols in this patient group. Hence, we conclude that, in clinical practice, the decision of when to remove chest drains postoperatively should remain guided empirically towards the individual patient.

  15. Cirugía torácica videoasistida en la terapia de resincronización cardíaca Video-assisted thoracic surgery used in the cardiac re-synchronizartion therapy

    Directory of Open Access Journals (Sweden)

    Edelberto Fuentes Valdés

    2010-03-01

    Full Text Available Se presenta el primer caso de terapia de resincronización cardíaca (TRC intervenido en el Hospital «Hermanos Ameijeiras» mediante técnica de cirugía torácica videoasistida. El paciente es un hombre de 67 años de edad, que presenta una miocardiopatía dilatada con disfunción sistólica ventricular izquierda grave. Al ingreso presentaba cuadro clínico de insuficiencia cardíaca avanzada, por lo que se consideró la indicación de TRC. Tras el fallo de la técnica percutánea para la colocación de un electrodo en una vena epicárdica del ventrículo izquierdo, se decidió el acceso quirúrgico de mínima invasión. El implante del electrodo epicárdico mediante cirugía torácica videoasistida fue un procedimiento seguro sin complicaciones transoperatorias ni posoperatorias. Hasta donde conocemos, esta es la primera ocasión en que se utiliza la videotoracoscopia en Cirugía Cardiovascular en Cuba.This is the first case of cardiac re-synchronization therapy (CRT operated on the "Hermanos Ameijeiras" Clinical Surgical Hospital using video-assisted thoracic surgery. Patient is a man aged 67 presenting with a dilated myocardiopathy with severe left ventricular systolic dysfunction. At admission he showed a clinical picture of advanced cardiac insufficiency, thus, we considered the prescription of a CRT. After the failure of the percutaneous therapy for placing a electrode in a epicardiac vein of left ventricle, we decide the minimal invasive surgical approach. The epicardiac electrode implantation by thoracic surgery was a safe procedure without transoperative and postoperative complications. We have knowledge that this is the first time that a video-thoracoscopy in Cardiovascular Surgery is performed in Cuba.

  16. 同期经剑突下单孔胸腔镜双侧肺大疱手术疗效分析%Clinical outcomes of simultaneous subxyphoid approach uniportal video-assisted thoracoscopic surgery for bilateral bullae

    Institute of Scientific and Technical Information of China (English)

    张志锋; 蔡南; 李志敏; 张欢楷; 洪祎纯; 黄豪达

    2016-01-01

    Objective:To evaluate the clinical effect and prognosis of uniportal video-assisted thoracoscopic surgery (VATS) through the subxyphoid approach for bilateral bullae. Methods:70 patients with bilateral bullae treated in this hospital during January 2014 to December 2015 were randomly divided into two groups. Patients in observation group (n=35) and control group (n=35) who underwent bilateral bullae excision with uniportal VATS were individually through the subxyphoid approach and the intercostal approach. hTe clinical indexes were compared between the two groups, including the surgery related indicators, the incidence of postoperative complications and the degree of pain, etc. Results:All operations were successfully completed;the observation group had shorter operation time. At 48 h, 72 h, and the 5th day atfer operation, the pain was less than that in the control group (P0.05). Conclusion:Simultaneous subxyphoid approach uniportal video-assisted thoracoscopic surgery for bilateral bullae is safe and feasible, which has shorter operation time, relief of postoperative pain and satisfying prognosis.%目的:研究分析采用经剑突下入路的单孔胸腔镜手术对双侧肺大疱行同期切除的临床疗效及预后。方法:将2014年1月至2015年12月收治的双侧肺大疱患者70例随机分为观察组和对照组,每组各35例,观察组和对照组分别采用经剑突下、经肋间入路行单孔胸腔镜双侧肺大疱切除术。比较两组患者的手术相关指标、术后并发症发生情况、切口疼痛程度等。结果:70例患者均顺利完成手术,观察组手术时间较短,术后48 h、72 h、第5天疼痛较轻,差异具有统计学意义(P0.05)。结论:同期经剑突下单孔胸腔镜双侧肺大疱切除术安全可行,可缩短手术时间,可有效减轻术后疼痛,预后良好。

  17. The application of transcutaneous CO2 pressure monitoring in the anesthesia of obese patients undergoing laparoscopic bariatric surgery.

    Directory of Open Access Journals (Sweden)

    Shijiang Liu

    Full Text Available To investigate the correlation and accuracy of transcutaneous carbon dioxide partial pressure (PTCCO2 with regard to arterial carbon dioxide partial pressure (PaCO2 in severe obese patients undergoing laparoscopic bariatric surgery. Twenty-one patients with BMI>35 kg/m(2 were enrolled in our study. Their PaCO2, end-tidal carbon dioxide partial pressure (PetCO2, as well as PTCCO2 values were measured at before pneumoperitoneum and 30 min, 60 min, 120 min after pneumoperitoneum respectively. Then the differences between each pair of values (PetCO2-PaCO2 and. (PTCCO2-PaCO2 were calculated. Bland-Altman method, correlation and regression analysis, as well as exact probability method and two way contingency table were employed for the data analysis. 21 adults (aged 19-54 yr, mean 29, SD 9 yr; weight 86-160 kg, mean 119.3, SD 22.1 kg; BMI 35.3-51.1 kg/m(2, mean 42.1,SD 5.4 kg/m(2 were finally included in this study. One patient was eliminated due to the use of vaso-excitor material phenylephrine during anesthesia induction. Eighty-four sample sets were obtained. The average PaCO2-PTCCO2 difference was 0.9 ± 1.3 mmHg (mean ± SD. And the average PaCO2-PetCO2 difference was 10.3 ± 2.3 mmHg (mean ± SD. The linear regression equation of PaCO2-PetCO2 is PetCO2 = 11.58+0.57 × PaCO2 (r(2 = 0.64, P<0.01, whereas the one of PaCO2-PTCCO2 is PTCCO2 = 0.60 + 0.97 × PaCO2 (r(2 = 0.89. The LOA (limits of agreement of 95% average PaCO2-PetCO2 difference is 10.3 ± 4.6 mmHg (mean ± 1.96 SD, while the LOA of 95% average PaCO2-PTCCO2 difference is 0.9 ± 2.6 mmHg (mean ± 1.96 SD. In conclusion, transcutaneous carbon dioxide monitoring provides a better estimate of PaCO2 than PetCO2 in severe obese patients undergoing laparoscopic bariatric surgery.

  18. Effect of video-assisted thoracoscope surgery and the nursing method%电视胸腔镜肺叶切除手术护理配合及效果分析

    Institute of Scientific and Technical Information of China (English)

    夏超

    2013-01-01

    目的 比较电视胸腔镜肺叶切除手术与传统开放肺叶切除手术的效果,探讨电视胸腔镜肺叶切除手术最佳护理配合方法,进一步提高护理质量.方法 对安徽省胸科医院胸外科2011年5月至2012年5月肺叶切除手术患者的手术效果及护理配合方法进行分析.其中胸腔镜手术47例为试验组,传统开放手术50 例为对照组;比较两组手术护理情况及效果.结果 试验组手术时间、术中出血量、术后住院总天数及患者满意度等方面明显优于对照组.结论 电视胸腔镜肺叶切除术具有创伤小、痛苦少、恢复快、疗效好及切口符合美容要求等优点,对提高护理工作效率和质量提出了新要求.充分的术前准备,熟练的手术配合是保证手术顺利完成的重要因素.%Objective To compare effect of video - assisted thoracoscope lobectomy with that of traditional open surgery operation and to explore intraoperative nursing methods in video - assisted thoracoscopy in order to improve the quality of nursing. Methods Clinical data of hospitalized patients who had undergone the treatment of thoracic surgery of lobectomy from May 2011 to May 2012 were retrospectively analyzed. The nursing methods and operation effect of 47 cases in VATS group and 50 cases in traditional open surgery group were compared. Results The operative time, perioperative bleeding and postoperative indwelling catheter time, the tube placed time, postoperative hospitalization and total factors in VATS group of were better than those of the traditional treatment group. Conclusion The video - assisted thoracoscope surgery has advantages of smaller trauma, lighter pain, rapid recovery, and good curative effect, which is safer and more reliable , meeting the beauty incision requirements. It has great significance in improve the efficiency and quality of nursing work. Sufficient pre-operative preparation, strict and skillful operation are important factor in

  19. Creating and Editing Video to Accompany Manuscripts.

    Science.gov (United States)

    Gordon, Shayna L; Porto, Dennis A; Ozog, David M; Council, M Laurin

    2016-02-01

    The use of video can enhance the learning experience by demonstrating procedural techniques that are difficult to relay in writing. Several peer-reviewed journals allow publication of videos alongside articles to complement the written text. The purpose of this article is to instruct the dermatologic surgeon on how to create and edit a video using a smartphone, to accompany a article. The authors describe simple tips to optimize surgical videography. The video that accompanies this article further demonstrates the techniques described. Creating a surgical video requires little experience or equipment and can be completed in a modest amount of time. Making and editing a video to accompany a article can be accomplished by following the simple recommendations in this article. In addition, the increased use of video in dermatologic surgery education can enhance the learning opportunity.

  20. Expectativas y satisfacción en el tratamiento del neumotórax espontáneo primario recurrente tratado por toracotomía o cirugía torácica video-asistida Expectations and patient satisfaction related to the use of thoracotomy and video-assisted thoracoscopic surgery for treating recurrence of spontaneous primary pneumothorax

    Directory of Open Access Journals (Sweden)

    Jorge Ramón Lucena Olavarrieta

    2009-02-01

    Full Text Available OBJETIVO: Comparar los resultados de la toracotomía con la video-assisted thoracoscopic surgery (VATS, cirugía torácica video-asistida en el tratamiento de las recurrencias del neumotórax espontáneo primario. MÉTODOS: Se revisaron los expedientes clínicos de los pacientes con neumotórax primario recurrente dividiéndose en dos grupos: pacientes sometidos a toracotomía (n = 53, grupo toracotomía y pacientes sometidos a VATS (n = 47, grupo VATS. RESULTADOS: La morbilidad fue mayor en el grupo A. Sin mortalidad en ninguno de los dos grupos. La duración de la hospitalización fue similar. Los pacientes del grupo toracotomía necesitaron más dosis de narcóticos durante períodos más largos de tiempo que los del grupo VATS (p OBJECTIVE: To compare the outcomes of thoracotomy and video-assisted thoracoscopic surgery (VATS in the treatment of recurrence of primary spontaneous pneumothorax. METHODS: Medical records of patients presenting recurrence of primary spontaneous pneumothorax were retrospectively reviewed. Patients were divided into two groups: those who underwent conservative thoracotomy (n = 53, thoracotomy group; and those who underwent VATS (n = 47, VATS group. RESULTS: Although there were no deaths in either group and the length of hospital stays was similar between the two, there was greater morbidity in the thoracotomy group. Patients in the thoracotomy group required more pain medication for longer periods than did those in the VATS group (p < 0.05. In the thoracotomy group, the rate of recurrence was 3%. Pain was classified as insignificant at one month after the operation by 68% of patients in the VATS group and by only 21% of those in the thoracotomy group (p < 0.05. At three years after the surgical procedure, 97% of the VATS group patients considered themselves completely recovered from the operation, compared with only 79% in the thoracotomy group (p < 0.05. Chronic or intermittent pain, requiring the use of analgesics

  1. Comparison of continuous epidural block and continuous paravertebral block in postoperative analgaesia after video-assisted thoracoscopic surgery lobectomy: a randomised, non-inferiority trial.

    Science.gov (United States)

    Kosiński, Sylweriusz; Fryźlewicz, Edward; Wiłkojć, Michał; Ćmiel, Adam; Zieliński, Marcin

    2016-01-01

    Video-assisted (VATS) lung lobectomy can be associated with stronger postoperative pain than is commonly believed. It is generally accepted to introduce multimodal analgaesic strategies based on regional blockade, opioids and non-steroidal anti-inflammatory drugs. However, there is still no consensus regarding the optimal regional technique. The aim of this study was to compare the analgaesic efficacy of continuous thoracic epidural block (TEA) and percutaneous continuous paravertebral block (PVB) in patients undergoing video-assisted lung lobectomy. Fifty-one patients undergoing VATS lobectomy were enrolled in the present prospective, randomised clinical trial. The same analgaesic regimen in both groups included continuous infusion of 0.25% bupivacaine with epinephrine, intravenous ketoprofen and paracetamol. The doses of local anaesthetics were determined to achieve the spread of at least 4 segments in both groups. Postoperative static and dynamic visual analogue pain scores, as well as patient-controlled morphine usage, were used to compare the efficacy of analgaesia. Side effects and failure rates of both blocks were analysed. Static and dynamic pain scores at 24 postoperative hours were significantly lower in the paravertebral group, as were the static pain score at 36 and 48 postoperative hours (P < 0.05). No difference between the treatment groups was identified regarding postoperative morphine usage. The failure rate was higher in the epidural group than in the paravertebral group. No complications were noted in either group, but side effects (urinary retention, hypotension) were more frequent in the epidural group (P < 0.05). Postoperative pain following VATS lung resection procedures is significant and requires the application of complex analgaesic techniques. Percutaneous paravertebral block is equally effective as thoracic epidural block in providing analgaesia in patients undergoing VATS lobectomy. Paravertebral block has a better safety profile than

  2. EPO N技术在智能变电站状态监测和视频监控系统中的应用%Application of EPON Technology in Smart Substation Condition Monitoring and Video Surveillance Systems

    Institute of Scientific and Technical Information of China (English)

    杨臻; 赵燕茹

    2014-01-01

    Ethernet passive optical network (EPON)is a new technology for optical fiber accessing network,which has characteristics of low cost,high bandwidth,little electromagnetic interference,strong scalability,strong compatibility and so on.The condition monitoring and video surveillance system in smart substation have a feature of large data,but low real-time requirements.The condition monitoring and video surveillance system in substation are constructed with using EPON can effectively solve the problem of exports' bandwidth allocation without using switches,and also can save the network construction investment and life-cycle maintenance costs, which is effective new network scheme for the condition monitoring and video surveillance system in smart substation.This paper analyzed the feasibility of the application of EPON technology in monitoring and video surveillance system in smart substation,and designed the construction scheme of EPON network for 220 kV smart substation,which can provide a new scheme for the data transmission in monitoring and video surveillance system in smart substation.%以太无源光网络(ethernet passive optical network,EPON)是一种新型的光纤接入网络技术,它具有低成本、高带宽、电磁干扰小、扩展性强、兼容性强等特点。在智能变电站中状态监测和视频监控系统数据量较大、实时性要求较低。采用EPON技术构建站内状态监测与视频监控系统,能够有效地解决出口带宽分配问题,且无需使用交换机,大大节省网络建设投资与全寿命周期维护成本,是智能变电站状态监测和视频监控系统有效的新型组网方案。分析了智能变电站状态监测和视频监控系统应用EPON技术的可行性,并提出220 kV智能变电站EPON网络构建方案,为智能变电站状态监测和视频监控系统的数据传输提供了一种新型方案。

  3. Direct oxymetric peripheral tissue perfusion monitoring during open heart surgery with the use of cardiopulmonary bypass: preliminary experience.

    Science.gov (United States)

    Lonsky, V; Svitek, V; Brzek, V; Kubicek, J; Volt, M; Horak, M; Mandak, J

    2011-11-01

    Regional hypoperfusion has been associated with the development of postoperative organ dysfunction in cardiac surgery involving cardiopulmonary bypass (CPB). Direct tissue oxymetry is a potentially new method for monitoring the quality of the peripheral tissue perfusion during CPB. The aim of this study was to assess the effects of CPB in skeletal muscle oxygenation when measured in the deltoid muscle by direct oxymetry during perioperative period. Seven patients underwent on-pump coronary artery bypass grafting. Direct oxymetry was performed by an optical cathether introduced into the deltoid muscle. Continuous measurement was made during the surgical procedure and the postoperative period. Mean arterial blood pressure, blood flow during CPB, laboratory markers of tissue hypoperfusion, blood gases and body temperature were also recorded. Interstitial muscle tissue oxygen tension (pO(2)) decreased after the introduction to anaesthesia and, more significantly, during CPB. After the disconnection from CPB at the end of the operation, the pO(2) returned to pre-anaesthetic values. During the first hours after admission of the patients to the intensive care unit, the pO(2) progressively decreased, reached a minimum value after four hours, and increased slowly thereafter. There was a significant correlation of pO(2) with mean arterial blood pressure and blood flow during that time. The result of this first measurement seems to demonstrate that the standard technique of conducting cardiopulmonary bypass produces low muscle oxygen tension and, thus, little perfusion of skeletal muscle. The data also indicate that both high mean arterial blood pressure and high flow are necessary during CPB to ensure skeletal muscle perfusion. The investigation is continuing.

  4. A Smart Monitoring System Based on Internet of Things and Video Analysis Technology for Prison%基于物联网和视频分析技术的监狱智能监控系统∗

    Institute of Scientific and Technical Information of China (English)

    奚吉; 蒋银忠

    2014-01-01

    An intelligent monitoring system is presented based on the prison IOT and video analysis technology. The system mainly consists of the monitoring terminal subsystem based on embedded platform, positioning monitoring subsystem which is based on the activities of prisoners networking technology. Video analysis technology is used for intelligent behavior monitoring of prisoners. Experimental results show that,the proposed perspective transformation and SVM classification method can effectively monitor the behavior of the prisoners,which free the monitors from the low-level monitoring mode and can improve the efficiency of monitoring to achieve the best combination of"air de-fense,anti-technology,anti-matter".%提出了一种基于物联网和视频分析技术的监狱智能监控系统。该系统主要由监控终端子系统以及犯人活动网络定位监测子系统组成,并利用视频分析技术对囚犯进行智能行为监控。实验结果表明:所提出的的透视变换及SVM的行为识别及目标分类方法可以有效监控罪犯行为,将监控人员从“紧盯屏幕”的低级监控模式中解放出来,能够很好地提高监控有效性,实现“人防、技防、物防”三位一体的最佳结合。

  5. 基于关键帧提取技术的花开过程视频监测系统开发及试验%Development and experiment of blooming video monitoring system based on key frame extraction method

    Institute of Scientific and Technical Information of China (English)

    高林; 王璐; 闫磊; 张军国

    2014-01-01

    为克服传统花开过程监测中视频数据冗余、信息量大的缺点,该文设计了一种基于关键帧提取技术的花开过程视频监测系统。系统对花开过程原始图像采集后,采用基于光流法和熵统计算法实现对花开过程原始图像的关键帧提取,选择关键帧数模式或方向信息熵阈值模式,进行相关参数设置,最终合成出表征花开过程的关键帧视频。该文以百合花开放过程为例实现了基于关键帧提取技术的视频监测。试验结果证明,在该试验的条件下经关键帧提取合成的花开过程的视频数据量减少达84.6%以上,播放时间减少为原始视频播放时间的15.4%以下。视频保留了花开过程细节信息,整段视频播放自然流畅,可为从事植物、花卉研究的相关人员提供一个省时、方便的研究花开过程的监测平台。%The drawback to original video of the blooming process is that it contains a large amount of data and redundant information. In order to provide researchers with a video for monitoring which is endowed with a high compression ratio, small amount of data, rich growth detailed information and natural fluency, a blooming video monitoring system based on a key frame extraction method was developed in this paper. System hardware included:one Personal Computer, Central Processing unit:Intel ® CPU T2300@1.66GHz, 1.24 G memory, one Microsoft high-definition cameras HD-3000、one shading carton box, and one DC LED lamp, etc., software development environment: WinXP Operating System, Microsoft Visual Studio 2008 Professional, OpenCV2.0. This system can be divided into five function modules: image acquisition module, core algorithm module, key frames judgment module、data storage examine module、and video composition preview module. The core of the system is the key frame retrieval method. This method is based on the flower growth characteristics. For example, the background for

  6. Single-incision video-assisted thoracic surgery lobectomy in the treatment of adult communicating bronchopulmonary foregut malformation with large aberrant artery

    Science.gov (United States)

    Kim, Chang Wan

    2016-01-01

    Single-incision thoracoscopic surgery (SITS) is not yet widely used for treating pulmonary sequestration due to the difficulty of manipulating an aberrant systemic artery or working around inflamed tissue. It is also difficult to control massive bleeding if the aberrant artery ruptures during excision. We modified the SITS lobectomy technique so that it was suitable for treating pulmonary sequestration. We changed the order of excision of anatomical structures and introduced two-stage stapling of the aberrant artery for easy, safe stapling in SITS lobectomy. Single-port VATS is an acceptable method for major pulmonary resection for the treatment of intrapulmonary sequestration. PMID:26904246

  7. A Brief Review of Non-invasive Monitoring of Respiratory Condition for Extubated Patients with or at Risk for Obstructive Sleep Apnea after Surgery.

    Science.gov (United States)

    Zhang, Xuezheng; Kassem, Mahmoud Attia Mohamed; Zhou, Ying; Shabsigh, Muhammad; Wang, Quanguang; Xu, Xuzhong

    2017-01-01

    Obstructive sleep apnea (OSA) is one of the important risk factors contributing to postoperative airway complications. OSA alters the respiratory physiology and increases the sensitivity of muscle tone of the upper airway after surgery to residual anesthetic medication. In addition, the prevalence of OSA was reported to be much higher among surgical patients than the general population. Therefore, appropriate monitoring to detect early respiratory impairment in postoperative extubated patients with possible OSA is challenging. Based on the comprehensive clinical observation, several equipment have been used for monitoring the respiratory conditions of OSA patients after surgery, including the continuous pulse oximetry, capnography, photoplethysmography (PPG), and respiratory volume monitor (RVM). To date, there has been no consensus on the most suitable device as a recommended standard of care. In this review, we describe the advantages and disadvantages of some possible monitoring strategies under certain clinical conditions. According to the literature, the continuous pulse oximetry, with its high sensitivity, is still the most widely used device. It is also cost-effective and convenient to use but has low specificity and does not reflect ventilation. Capnography is the most widely used device for detection of hypoventilation, but it may not provide reliable data for extubated patients. Even normal capnography cannot exclude the existence of hypoxia. PPG shows the state of both ventilation and oxygenation, but its sensitivity needs further improvement. RVM provides real-time detection of hypoventilation, quantitative precise demonstration of respiratory rate, tidal volume, and MV for extubated patients, but no reflection of oxygenation. Altogether, the sole use of any of these devices is not ideal for monitoring of extubated patients with or at risk for OSA after surgery. However, we expect that the combined use of continuous pulse oximetry and RVM may be

  8. A Brief Review of Non-invasive Monitoring of Respiratory Condition for Extubated Patients with or at Risk for Obstructive Sleep Apnea after Surgery

    Science.gov (United States)

    Zhang, Xuezheng; Kassem, Mahmoud Attia Mohamed; Zhou, Ying; Shabsigh, Muhammad; Wang, Quanguang; Xu, Xuzhong

    2017-01-01

    Obstructive sleep apnea (OSA) is one of the important risk factors contributing to postoperative airway complications. OSA alters the respiratory physiology and increases the sensitivity of muscle tone of the upper airway after surgery to residual anesthetic medication. In addition, the prevalence of OSA was reported to be much higher among surgical patients than the general population. Therefore, appropriate monitoring to detect early respiratory impairment in postoperative extubated patients with possible OSA is challenging. Based on the comprehensive clinical observation, several equipment have been used for monitoring the respiratory conditions of OSA patients after surgery, including the continuous pulse oximetry, capnography, photoplethysmography (PPG), and respiratory volume monitor (RVM). To date, there has been no consensus on the most suitable device as a recommended standard of care. In this review, we describe the advantages and disadvantages of some possible monitoring strategies under certain clinical conditions. According to the literature, the continuous pulse oximetry, with its high sensitivity, is still the most widely used device. It is also cost-effective and convenient to use but has low specificity and does not reflect ventilation. Capnography is the most widely used device for detection of hypoventilation, but it may not provide reliable data for extubated patients. Even normal capnography cannot exclude the existence of hypoxia. PPG shows the state of both ventilation and oxygenation, but its sensitivity needs further improvement. RVM provides real-time detection of hypoventilation, quantitative precise demonstration of respiratory rate, tidal volume, and MV for extubated patients, but no reflection of oxygenation. Altogether, the sole use of any of these devices is not ideal for monitoring of extubated patients with or at risk for OSA after surgery. However, we expect that the combined use of continuous pulse oximetry and RVM may be

  9. Reduced incidence of atrial fibrillation after cardiac surgery by continuous wireless monitoring of oxygen saturation on the normal ward and resultant oxygen therapy for hypoxia.

    Science.gov (United States)

    Kisner, Dilek; Wilhelm, Markus J; Messerli, Michael S; Zünd, Gregor; Genoni, Michele

    2009-01-01

    Monitoring of cardiac surgical patients after transfer from the intensive care unit to the normal ward is incomplete. Undetected hypoxia, however, is known to be a risk factor for occurrence of atrial fibrillation. We have utilized Auricall for continuous wireless monitoring of oxygen saturation and heart rate until discharge. The object of the study was to analyze if oxygen therapy as a result of Auricall alerts of hypoxia can decrease the incidence of postoperative atrial fibrillation. Auricall is a wireless portable pulse oximeter. An alert is generated depending on preset threshold values (heart rate, oxygen saturation). Over a period of 6 months, 119 patients were monitored with the Auricall following coronary artery bypass graft and/or valve surgery. Oxygen therapy was started subsequent to an oxygen saturation below 90%. These patients were compared with a cohort of 238 patients from the time period before availability of Auricall. The patient characteristics were comparable in both groups. In a retrospective study, the incidence of atrial fibrillation was measured in both groups. The postoperative AF was observed in 22/119 patients (18%) in group I and in 66/238 patients (28%) in group II. This difference between the two groups approached significance (p=0.056). In the subgroup of patients with coronary artery bypass graft with our without simultaneous valve surgery (n=312), Auricall monitoring resulted in a significantly reduced incidence of atrial fibrillation (14% vs 26%, p=0.016). Continuous monitoring of oxygen saturation on the normal ward and subsequent oxygen therapy for hypoxia can reduce the incidence of atrial fibrillation in a subgroup of patients after cardiac surgery. Prospective randomized trials are warranted to confirm these data.

  10. Video systems for alarm assessment

    Energy Technology Data Exchange (ETDEWEB)

    Greenwoll, D.A.; Matter, J.C. (Sandia National Labs., Albuquerque, NM (United States)); Ebel, P.E. (BE, Inc., Barnwell, SC (United States))

    1991-09-01

    The purpose of this NUREG is to present technical information that should be useful to NRC licensees in designing closed-circuit television systems for video alarm assessment. There is a section on each of the major components in a video system: camera, lens, lighting, transmission, synchronization, switcher, monitor, and recorder. Each section includes information on component selection, procurement, installation, test, and maintenance. Considerations for system integration of the components are contained in each section. System emphasis is focused on perimeter intrusion detection and assessment systems. A glossary of video terms is included. 13 figs., 9 tabs.

  11. Video classification for video quality prediction

    Institute of Scientific and Technical Information of China (English)

    LIU Yu-xin; KURCEREN Ragip; BUDHIA Udit

    2006-01-01

    In this paper we propose a novel method for video quality prediction using video classification. In essence, our approach can serve two goals: (1) To measure the video quality of compressed video sequences without referencing to the original uncompressed videos, i.e., to realize No-Reference (NR) video quality evaluation; (2) To predict quality scores for uncompressed video sequences at various bitrates without actually encoding them. The use of our approach can help realize video streaming with ideal Quality of Service (QoS). Our approach is a low complexity solution, which is specially suitable for application to mobile video streaming where the resources at the handsets are scarce.

  12. 非气管插管麻醉在胸腔镜手术中的应用%A review on the application non-intubated anesthesia in video-assisted thoracoscopic surgery

    Institute of Scientific and Technical Information of China (English)

    郝宁; 马珏; 张光燕; 崔建修

    2016-01-01

    背景 电视胸腔镜手术(video-assisted thoracoscopic surgery,VATS)应用传统气管插管全身麻醉机械通气引起的气道损伤及急性肺损伤等并发症影响患者术后恢复和生活质量.近年来非气管插管麻醉行VATS的安全性及可行性受到胸外科医师和麻醉医师的广泛关注. 目的 推进对于VATS期间应用非气管插管麻醉的认识和应用. 内容 回顾近年来国内外关于非气管插管麻醉下行VATS治疗胸科疾病的临床研究情况,总结其安全性、可行性及相对于传统方式的优势和目前存在的问题. 趋向 非气管插管麻醉作为一项新技术在VATS中的应用亟待更多的临床研究.%Background Video-assisted thoracoscopic surgery (VATS) which is conventionally performed under tracheal intubation with double lumen tube to achieve single lung ventilation has many complications and adverse effects following intubated general anesthesia and one-lung ventilation are inevitable,including intubation-related airway trauma ventilation-induced lung injury erc,affecting the recovery and quality of life of those patients.Recently,VATS without tracheal intubation has been extensively performed and evaluated.Objective To promote the cognition and application of non-intubated anesthesia during VATS in recent years.Content Review the clinical researches and applications of nonintubated VATS in thoracic diseases,evaluate the safety,feasibility and advantages compared to the traditional approach.Trend As a new technology in the VATS,non-intubated anesthesia is in urgent need for more clinical research.

  13. [Guidelines for intensive care in cardiac surgery patients: haemodynamic monitoring and cardio-circulatory treatment guidelines of the German Society for Thoracic and Cardiovascular Surgery and the German Society of Anaesthesiology and Intensive Care Medicine].

    Science.gov (United States)

    Carl, M; Alms, A; Braun, J; Dongas, A; Erb, J; Goetz, A; Göpfert, M; Gogarten, W; Grosse, J; Heller, A; Heringlake, M; Kastrup, M; Kröner, A; Loer, S; Marggraf, G; Markewitz, A; Reuter, M; Schmitt, D V; Schirmer, U; Wiesenack, C; Zwissler, B; Spies, C

    2007-03-01

    Hemodynamic monitoring and adequate volume-therapy, as well as the treatment with positive inotropic drugs and vasopressors, are the basic principles of the postoperative intensive care treatment of patient after cardiothoracic surgery. The goal of these S3 guidelines is to evaluate the recommendations in regard to evidence based medicine and to define therapy goals for monitoring and therapy. In context with the clinical situation the evaluation of the different hemodynamic parameters allows the development of a therapeutic concept and the definition of goal criteria to evaluate the effect of treatment. Up to now there are only guidelines for subareas of postoperative treatment of cardiothoracic surgical patients, like the use of a pulmonary artery catheter or the transesophageal echocardiography. The German Society for Thoracic and Cardiovascular Surgery and the German Society for Anaesthesiology and Intensive Care Medicine made an approach to ensure and improve the quality of the postoperative intensive care medicine after cardiothoracic surgery by the development of S3 consensus-based treatment guidelines. Goal of this guideline is to assess available monitoring methods and their risks as well as the differentiated therapy of volume-replacement, positive inotropic support and vasoactive drugs, the therapy with vasodilators, inodilators and calcium-sensitizers and the use of intra-aortic balloon pumps. The guideline has been developed according to the recommendations for the development of guidelines by the Association of the Scientific Medical Societies in Germany (AWMF). The presented key messages of the guidelines were approved after two consensus meetings under the moderation of the Association of the Scientific Medical Societies in Germany (AWMF).

  14. 高清网络视频监控系统在煤矿安全生产中的应用%Application of High-definition Network Video Monitoring System in Mine Safety Production

    Institute of Scientific and Technical Information of China (English)

    王瑛

    2014-01-01

    The paper introduces the application of high -definition network video monitoring system in mine safe-ty production ,whose working mode of distributed structure and high -definition network camera have over-comes the shortcomings of unclear simulated images ,impossible long -distance transmission and view and short storage time of video images .%介绍了高清网络视频监控系统在煤矿安全生产中的应用,详细分析了其分布式结构在局矿多级应用中的工作模式及高清网络摄像机的应用,克服了以往模拟图像不清,不能被远距离传输和查看,视频图像存储时间较短等缺点。

  15. EI Videos

    CERN Document Server

    Courtney, Michael; Courtney, Amy

    2012-01-01

    The Quantitative Reasoning Center (QRC) at USAFA has the institution's primary responsibility for offering after hours extra instruction (EI) in core technical disciplines (mathematics, chemistry, physics, and engineering mechanics). Demand has been tremendous, totaling over 3600 evening EI sessions in the Fall of 2010. Meeting this demand with only four (now five) full time faculty has been challenging. EI Videos have been produced to help serve cadets in need of well-modeled solutions to homework-type problems. These videos have been warmly received, being viewed over 14,000 times in Fall 2010 and probably contributing to a significant increase in the first attempt success rate on the Algebra Fundamental Skills Exam in Calculus 1. EI Video production is being extended to better support Calculus 2, Calculus 3, and Physics 1.

  16. Video doorphone

    OpenAIRE

    Horyna, Miroslav

    2015-01-01

    Tato diplomová práce se zabývá návrhem dveřního video telefonu na platformě Raspberry Pi. Je zde popsána platforma Raspberry Pi, modul Raspberry Pi Camera, operační systémy pro Raspberry Pi a popis instalace a nastavení softwaru. Dále je zde popsán návrh a popis programů vytvořených pro dveřní video telefon a návrh přídavných modulů. This thesis deals with door video phone on the platform Raspberry Pi. There is described the platform Raspberry Pi, Raspberry Pi Camera module, operating syst...

  17. Video Podcasts

    DEFF Research Database (Denmark)

    Nortvig, Anne Mette; Sørensen, Birgitte Holm

    2016-01-01

    This project’s aim was to support and facilitate master’s students’ preparation and collaboration by making video podcasts of short lectures available on YouTube prior to students’ first face-to-face seminar. The empirical material stems from group interviews, from statistical data created through...... YouTube analytics and from surveys answered by students after the seminar. The project sought to explore how video podcasts support learning and reflection online and how students use and reflect on the integration of online activities in the videos. Findings showed that students engaged actively...... in podcasts that included designed activities, and moreover – although to a lesser degree – that students engaged actively in podcasts that did not include additional activities, suggesting that learning via podcast does not always mean learning by passive listening....

  18. 电视胸腔镜在自发性气胸治疗中的应用%The application of video-assisted thoracic surgery in the treatment of spontaneous pneumothorax

    Institute of Scientific and Technical Information of China (English)

    周金强; 李娜; 王辉

    2016-01-01

    目的:观察电视胸腔镜手术( VATS)治疗自发性气胸对减轻术后肋间神经痛的效果。方法随机选取经VATS治疗的自发性气胸患者70例作为试验组;选取进行常规开胸手术治疗的自发性气胸患者70例作为对照组。比较2组患者术后第1~3天视觉模拟评分法( VAS)疼痛评分情况。结果试验组患者术后第1、2、3天VAS评分均低于对照组,差异均有统计学意义( P<0.001)。结论 VATS治疗自发性气胸可有效减轻患者术后肋间神经痛,利于患者康复。%Objective To explore video-assisted thoracoscopic surgery ( VATS) used for spontaneous pneumothorax reducing postoperative intercostal neuralgia .Methods 70 patients with VATS treatment for spontaneous pneumothorax were randomly selected as the experimental group ,and 70 patients treated with conventional open thoracic surgery as control group . The pain scores ( Visual analogue scale ,VAS) of two groups were compared in 1~3 days after operation .Results The VAS scores of experimental group were lower than that of control group ,the differences were statistically significant (P<0.001). Conclusion VATS for the treatment of spontaneous pneumothorax can effectively relieve intercostal neuralgia patients ,which is conducive to the rehabilitation of patients .

  19. The Real-time Monitor System Based on Cloud Computing and Free View Point Video%云计算和自由视点视频相结合的实时监控系统

    Institute of Scientific and Technical Information of China (English)

    胡延军; 仲亚丽; 袁莎莎

    2012-01-01

    The paper proposes a three-dimensional real-time display mobile video surveillance program based on cloud computing and the free viewpoint video technologies to effectively solve limitations of computing resources and storage capacity.Our scheme uses the random accessibility of cloud computing to obtain video information,and process the collected video using the distributed processing and transmission.Then,it renders 3D video by attaining free view point imaging.With our proposed architecture,users can choose the viewing angle freely to watch 3D videos on mobile devices by portable mobile devices.This architecture realizes the integration of the cloud computing technology,free technical viewpoint and 2D to 3D video.The three-dimensional image based on cloud computing and transmission system is a new system to monitor accident sites for greater visual effect.%为有效解决系统计算资源以及存储能力的局限问题,提出一种基于云计算和自由视点技术相结合并且用于3D实时显示的移动视频监控方案.该方案通过使用随机接入云计算技术获取视频信息,并对采集到的视频进行分布式处理与传输,然后获取自由视点的成像,进而绘制3D视频.提出的方案可以使用户通过便携式移动设备自主选择观看角度,获取3D视频.该体系结构实现了云计算技术、自由视点技术以及2D转3D视频等多种技术的整合.基于云计算的三维图像和传输系统是一种提高视觉效果并且可用于事故现场的全新系统.

  20. Pilot study of laser induced breakdown spectroscopy for tissue differentiation by monitoring the plume created during laser surgery — An approach on a feedback Laser control mechanism

    Science.gov (United States)

    Kanawade, Rajesh; Mehari, Fanuel; Knipfer, Christian; Rohde, Maximilian; Tangermann-Gerk, Katja; Schmidt, Michael; Stelzle, Florian

    2013-09-01

    This study focuses on tissue differentiation using 'Laser Induced Breakdown Spectroscopy' (LIBS) by monitoring the plasma plume created during laser surgery processes. This technique is aimed at controlling a laser surgery feedback system in real time. An Excimer laser (Ar-F 193 nm) was used for the ablation of tissue samples. Fat, muscle, nerve and skin tissue samples of bisected ex-vivo pig heads were prepared as test objects for the ablation procedure. A single fiber was used to collect emissions and deliver them to a spectrometer. The obtained LIBS spectra in the measured emissions were analyzed to determine each tissue type according to their chemical composition. The elements found in the samples and their emission spectra were in agreement with those described in literature. The collected LIBS spectra were analyzed to differentiate the tissues using statistical data analysis: Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA) and Receiver Operating Characteristics (ROC). The obtained preliminary results suggest a successful differentiation of the target tissues with high sensitivity and specificity. The main goal of this study was to qualitatively identify tissue types during laser ablation, which will provide a real time feedback mechanism for clinical Laser surgery applications to significantly improve the accuracy and safety of laser surgery procedures.

  1. Surgical of treating benign lung disease by compietly video-assisted thoracoscopic surgery (VATS) 56case%全电视胸腔镜手术治疗肺良性疾病56例

    Institute of Scientific and Technical Information of China (English)

    李勇; 程远建; 魏强

    2011-01-01

    目的 探讨电视胸腔镜手术(VATS)治疗肺部良性疾病的价值,手术安全性,以利于手术方式微创化.方法 我科自2009年9月~2010年11月,在全胸腔镜下手术治疗肺部良性疾病56例.全部病例均在全胸腔镜下完成,按照垒球场原则胸腔镜三切口,无中转开胸病例.结果 所有病例均为局部切除,手术时间35~145min,平均65min,术中出血10~600ml,平均60ml,1例患者术中出血600ml,术中输血400ml.5例胸腔粘连严重,予以仔细游离粘连后,手术完成,无中转开胸病例,1例术后出血,经过保守治疗得以控制,2例患者术后发生张力性气胸,增加引流管治疗后治愈,其中1例患者系糖尿病,术后第5天发生张力性气胸,继而发生胸腔感染,另1例术后第2天于哮喘后发生张力性气胸,呼吸机辅助呼吸2d后顺利脱机.平均住院时间6d,全组患者无围手术期死亡.结论 全胸腔镜手术治疗肺良性疾病创伤小,恢复快,切口美观,手术安全,有广泛的开展价值.%Objective To review the value and surgical safety of treating benign lung disease by video-assisted thoracoscopic surgery (VATS) ,for facilitating minimally invasive surgery.Methods 56 patients with benign lung disease were performed by VATS during Sep 2009 ~Nov 2010.All the cases were accomplished by VATS, making three incisions in accordance with the principles of Softball Field, no case was changed to thoracotomy.Results All the cases were local excision.The average time for surgery was 65min ranging from 35 ~ 145min and the average blood loss in surgery was 60ml ranging from 10 ~ 600ml.Only 1 patient was transfued 400ml of blood who lost 600ml during operation;5 cases with severe adhesiolysis of thoracic cavity, whose operations were accomplished after separating adhesions carefully and no one was changed to thoracotomy; 1 case of postoperative bleeding, controlled by conservative treatment; 2 patients of postoperative tension pneumothorax

  2. Akademisk video

    DEFF Research Database (Denmark)

    Frølunde, Lisbeth

    2016-01-01

    Dette kapitel har fokus på metodiske og systemiske problemstillinger vedrørende forskerens positionering i forhold til at formidle på digitale medier, særligt med video. De systemiske problemer omfatter en Janus dobbelthed; forskeren vil måske gerne formidle på digitale platforme, men er tynget...... indadtil af ansvar, tidspres, renomé, kvalitetskrav, og digitale platformes flygtighed. De metodiske problemer inkluderer at videoanalyse trækker på mange traditioner, men er underudviklet i forhold til den digitale kontekst. Empirien består af eksempler på online formidling i form af “akademisk video......”. Analysen anvender narrativ, multimodal analyse af video, primært to videoer på platformen audiovisualthinking.org, hvor forskeren optræder som fortæller eller “storyteller”. En video er lavet af forfatteren. Videoanalysen er valideret gennem kollaboration med en af audiovisualthinking.org stifterne. De...

  3. 基于Web的鸟类视频监控系统研究与实现%STUDY ON WEB-BASED VIDEO MONITORING SYSTEM FOR BIRDS AND ITS IMPLEMENTATION

    Institute of Scientific and Technical Information of China (English)

    宋杰伟; 王金一; 南凯; 阎保平

    2011-01-01

    This paper introduces the construction of the video monitoring network at Qinghai Lake Natural Protection Zone and presents a detailed design scheme of building the Web-based video monitoring system in combination with J2EE and ActiveX techniques. The development of this system provides a simple and facile platform to monitor the birds. The study project will serve the development of science and technology research of birds, and is an interdisciplinary e-Science innovation project with a combination of information science and biology.%介绍了青海湖自然保护区视频监控网络的建设情况,并结合J2EE、ActiveX等技术,提出了构建基于Web的视频监控系统的详细设计方案.基于Web视频监控系统的建立为鸟类监测提供了一个简单易用的平台.该研究项目将服务干鸟类科研的开展,是一个结合了信息学、生物学的跨学科e-Science创新工程.

  4. Problems and Suggestions of Video Monitoring System in Flood Control%视频监控系统在防汛中存在的问题及建议

    Institute of Scientific and Technical Information of China (English)

    王森

    2013-01-01

    Take the curre nt construction situation of the monitoring system of Daqinghe River Management Office for example, in connection with the problem of video monitoring system in flood control, put forward some suggestions about constructing 3G wireless video monitoring system, which helps utilizing visual management and grasping site situations timely, and provides solutions for flood control decision and disaster relief.%  以河北省大清河管理处监视系统的建设现状为例,针对视频监视系统在防汛中存在问题,提出了建设基于3G无线网络的视频监控系统的建议,使大清河河务处防汛工作能够应用可视化管理方式,及时了解现场情况,为防洪调度决策和指挥抢险救灾提供了一种解决方法。

  5. Design and Implementation of 3G Video Monitoring System on Long-distance Bus%长途客车视频监控系统的设计与实现

    Institute of Scientific and Technical Information of China (English)

    姜敏

    2013-01-01

    An effective system based on wireless video monitoring, audio and video decoding, GPS position and 3G network transmission is designed, thus to implement real-time location and monitoring of the long-distance bus. The vehicle wireless camera, pick-up device and other front-end equipments collect the video and audio information, store the information in the local disk or up-load through 3G wireless network. With auto-alert device, the alarming information is transferred to the monitoring center for real-time processing. With integrated terminal host and display device, the timely warning of driving security and the efficient saving of 3G flow could be realized.%  以移动视频监控为出发点,结合音视频编解码技术、GPS卫星定位、3G无线网络传输等技术,实现对长途客车的实时定位和视频监控。利用无线摄像机、拾音器等车载前端设备进行音视频信息采集,存储在本地磁盘或通过无线网络上传。客车配备自动报警装置,以便报警信息及抓取的图像能够上传至监控中心及时处理。利用集成了语音模块的车载显示屏,实现行车安全提醒。通过内置GPS模块的车载主机,有效节约3G流量。

  6. Design and Realization of Network Video Monitoring System in Coal Mine Safety Production%煤矿安全生产网络视频监控系统的设计与实现

    Institute of Scientific and Technical Information of China (English)

    李万高; 刘晓乐

    2013-01-01

    The network video monitoring system in coal mine design involves hundreds of index in the coal mine production, needs to call a large amount of data and information, and comprehensively balances various relationships between coal mine production and labor, between supply and demand needs and recoverable coal mines, between coal mine enterprise itself benefits and social benefits, the demanding, equipment and strong technical, the network video monitoring system design process is actually a multi -objective dynamic decision process. Therefore, by means of computer network technology, cad network video monitoring system, realizing the computer management to coal mine safety production is very necessary.%煤矿网络视频监控系统设计涉及到煤矿生产工作的数百个指标,需要调用大量的数据和信息,并要综合平衡煤矿生产同劳动力之间、供求需要同可开采煤矿之间、煤矿企业自身效益同社会效益之间的各种关系,要求很高,业务性和技术性很强,煤矿网络视频监控系统设计的过程实际上是一个多目标动态决策过程。因此,以计算机网络技术为手段,辅助设计网络视频监控系统,实现计算机对煤矿安全生产管理是非常必要的。

  7. Robotics and general surgery.

    Science.gov (United States)

    Jacob, Brian P; Gagner, Michel

    2003-12-01

    Robotics are now being used in all surgical fields, including general surgery. By increasing intra-abdominal articulations while operating through small incisions, robotics are increasingly being used for a large number of visceral and solid organ operations, including those for the gallbladder, esophagus, stomach, intestines, colon, and rectum, as well as for the endocrine organs. Robotics and general surgery are blending for the first time in history and as a specialty field should continue to grow for many years to come. We continuously demand solutions to questions and limitations that are experienced in our daily work. Laparoscopy is laden with limitations such as fixed axis points at the trocar insertion sites, two-dimensional video monitors, limited dexterity at the instrument tips, lack of haptic sensation, and in some cases poor ergonomics. The creation of a surgical robot system with 3D visual capacity seems to deal with most of these limitations. Although some in the surgical community continue to test the feasibility of these surgical robots and to question the necessity of such an expensive venture, others are already postulating how to improve the next generation of telemanipulators, and in so doing are looking beyond today's horizon to find simpler solutions. As the robotic era enters the world of the general surgeon, more and more complex procedures will be able to be approached through small incisions. As technology catches up with our imaginations, robotic instruments (as opposed to robots) and 3D monitoring will become routine and continue to improve patient care by providing surgeons with the most precise, least traumatic ways of treating surgical disease.

  8. 全胸腔镜微创肺癌根治术手术创伤的临床研究%Clinical Analysis of Surgical Trauma between Complete Video-assisted Thoracoscopy and Traditional Open Surgery for Lung Cancer

    Institute of Scientific and Technical Information of China (English)

    马建强; 杨绍军; 李旭; 杨立民; 王曦; 凌锋; 赵之婧

    2013-01-01

    目的:比较全胸腔镜(complete video-assisted thoracoscopic surgery,c-VATS)与传统开胸肺癌切除术(taditional open surgery,TOS)的创伤性指标,进一步探讨全胸腔镜肺癌切除术的微创性.方法2010年1月至2013年2月昆明医科大学第二附属医院胸心血管外科全胸腔镜肺癌切除术(c-VATS组)45例,随机选择42例传统开胸(TOS组)作对照研究,比较两组患者手术时间、术中失血量、胸腔引流时间、围术期细胞因子及免疫细胞(CRP,WBC、N、L)、疼痛评分、肩关节活动功能评分.结果2组患者性别、年龄、病理类型、病理分期差异无统计学意义(>0.05);2组患者手术时间上无明显差异(>0.05);引流时间TOS组较c-VATS组明显延长[(4.64±2.10) d vs (3.20±1.20) d,=0.000];与TOS组相比,VATS组术中失血量明显减少[(167.4±68.5) mL vs (288.6±84.0) mL,=0.000];2组患者围术期CRP,WBC,N,L比较无明显差异(>0.05);术后1 d、3 d、7 d、30 d时c-VATS组疼痛评分均低于TOS组,其中两组间术后1 d疼痛评分差异无统计学意义(=0.542),术后3 d ,7 d,30 d疼痛评分差异均有统计学意义(=0.034,0.000,0.000,);患者日常生活活动评分术后7 d,30 d时c-VATS组均明显优于TOS组患者,有统计学差异(=0.000,0.000).结论全胸腔镜肺癌切除术不论近期效果还是远期效果均优于传统开胸手术,全胸腔镜肺癌切除术更微创化.%Objective To compare the traumatic indicators of complete video-assisted thoracoscopic surgery (c-VATS) with traditional open surgery (TOS) for lung cancer patients, and further explore the minimal invasiveness of c-VATS. Methods From January 2010 to February 2013, 45 cases with complete video-assisted thoracoscopic surgery (c-VATS gurop) and 42 cases with traditional open surgery (TOS group) were compared in operation time

  9. Radical cystectomy for bladder cancer: сomparison of early surgical complications during laparoscopic, open-access, and video-assisted surgery

    Directory of Open Access Journals (Sweden)

    A. K. Nosov

    2015-01-01

    Full Text Available Objectives. To evaluate peri- and postoperative morbidity and functional results of LRC in a single-site cohort of patients, comparing it with standard open approach (ORC and laparoscopic cystectomy with open urinary diversion (HALRC.Subjects and methods. A prospective analysis was performed in 51 muscle-invasive and locally advanced BCa patients who underwent RC between February 2012 and March 2014 in N. N. Petrov Research Institute of Oncology, Saint-Petersburg. The final cohort included 21 ORC, 21 LRC and 9 HALRC patients. Mean patients age was 64 (38–81 years old and did not differ in all groups. Pathological stage were similar in all groups. Multivariable logistic and median regression was performed to evaluate operating time, perioperative and postoperative complications (30-d and 90-d, readmission rates, length of stay (LOS – totally and in ICU.Results. Operating time during LRC and HALRC was longer than that of ORC (398 min vs 468 min vs 243 min, respectively. Despite that, there was no statistically significant influence of type of surgery on intraoperative complications – 14.3 % in ORC group, 11.1 % in HALRC and 4.7 % in LRC patients. Major complication rates (Clavien grade  3; 23.8 % vs 33.3 % vs 19.4 % were similar between all groups. However, LRC had 4,0 times lower rate of minor complications (Clavien grade 1–2 compared to ORC (4.7 % vs 19.0 %. LRC had a significantly shorter LOS (27.8 d vs 32.6 d vs 22.6 d in ORC, HALRC and LRC groups, respectively, but no significant differences in ICU stay existed (5.1 d vs 3.1 d vs 2.1 d. Morbidity were present by one patient in each group (medium rate 5,8 %. The common transfusion rate during and after surgical intervention was 19.6 % and was higher in ORC group (33.3 % vs 4.7 % in LRC; as well, intraoperative bleeding was lower in minimally invasive techniques – the average volume of blood loss was 285 ml in LRC and did not differ between HALRC and ORC groups – 468

  10. The Danish Fracture Database can monitor quality of fracture-related surgery, surgeons' experience level and extent of supervision

    DEFF Research Database (Denmark)

    Andersen, Morten Jon; Gromov, Kirill; Brix, Michael

    2014-01-01

    INTRODUCTION: The importance of supervision and of surgeons' level of experience in relation to patient outcome have been demonstrated in both hip fracture and arthroplasty surgery. The aim of this study was to describe the surgeons' experience level and the extent of supervision for: 1) fracture......-related surgery in general; 2) the three most frequent primary operations and reoperations; and 3) primary operations during and outside regular working hours. MATERIAL AND METHODS: A total of 9,767 surgical procedures were identified from the Danish Fracture Database (DFDB). Procedures were grouped based...... on the surgeons' level of experience, extent of supervision, type (primary, planned secondary or reoperation), classification (AO Müller), and whether they were performed during or outside regular hours. RESULTS: Interns and junior residents combined performed 46% of all procedures. A total of 90% of surgeries...

  11. The Danish Fracture Database can monitor quality of fracture-related surgery, surgeons' experience level and extent of supervision

    DEFF Research Database (Denmark)

    Andersen, M. J.; Gromov, K.; Brix, M.

    2014-01-01

    INTRODUCTION: The importance of supervision and of surgeons' level of experience in relation to patient outcome have been demonstrated in both hip fracture and arthroplasty surgery. The aim of this study was to describe the surgeons' experience level and the extent of supervision for: 1) fracture......-related surgery in general; 2) the three most frequent primary operations and reoperations; and 3) primary operations during and outside regular working hours. MATERIAL AND METHODS: A total of 9,767 surgical procedures were identified from the Danish Fracture Database (DFDB). Procedures were grouped based...... on the surgeons' level of experience, extent of supervision, type (primary, planned secondary or reoperation), classification (AO Muller), and whether they were performed during or outside regular hours. RESULTS: Interns and junior residents combined performed 46% of all procedures. A total of 90% of surgeries...

  12. 胸腔镜3D 模式下治疗纵隔病变%Clinical Experience of 3D Mode Video-assisted Thoracoscopic Surgery for Mediastinal Lesions

    Institute of Scientific and Technical Information of China (English)

    耿国军; 石思恩; 李宁; 于修义; 姜杰; 郭崴; 区帆; 朱国勇; 王剑翁; 钟鸣; 林俊峰

    2016-01-01

    Objective To discuss the safety and efficacy of the 3D mode video-assisted thoracoscopic surgery (3D-VATS)for mediastinal tumor. Methods Data were collected from 62 patients with mediastinal tumor treated with 3D-VATS from July 2013 to July 2015 in our department.The observation port and the operation port were determined according to the tumor location,which could be swapped during the operation based on surgical situation.If the tumor diameter was greater than 5 cm,or close to great blood vessel,or with the surrounding adhesion difficult to expose,small incision video-assisted minithoracotomy (VAMT)was employed. Results The 3D-VATS was successfully completed in 58 cases.VAMT was conducted in 3 cases because of tumor diameter of 6 cm. Conversion to open surgery was required in 1 case due to tumor invasion to the left unknown vein.Intraoperative injury to the phrenic nerve leading to diaphragm elevation happened in 2 cases,which recovered 3 months after operation.Pulmonary atelectasis was seen in 2 cases, which were given anti-inflammatory, atomization, and expectoration until relief. No death occurred intraoperatively, postoperatively or 30 days after surgery.Postoperative pathology showed 31 cases of thymoma,16 cases of thymic hyperplasia,5 cases of thymic carcinoma,1 case of bronchogenic cyst,1 case of thymic cyst,2 cases of proliferation of lymphocytes,3 cases of teratoma, 2 cases of neurogenic tumor,and 1 case of pleural lipoma.All the 62 cases were followed up for 1 -24 months,with a median follow-up time of 12 months.No recurrence was seen in all the benign cases,while 1 case of thymic carcinoma recurred. Conclusion Treatment of mediastinal tumor with 3D-VATS is a new choice,bearing safe and feasible clinical effects.%目的:探讨3D 模式下电视辅助胸腔镜手术(video-assisted thoracoscopic surgery,VATS)治疗纵隔肿瘤的安全性和有效性。方法2013年7月~2015年7月采用3D-VATS 治疗62例纵隔肿瘤,按照术前 CT 肿瘤

  13. 一种改进的从交通监控视频中提取关键帧的方法%An Improved Method of Extracting Key Frames from Traffic Monitoring Video

    Institute of Scientific and Technical Information of China (English)

    姜腾飞; 陈祎琼; 江金铭; 汪超; 张倩倩

    2015-01-01

    考虑到交通监控视频中相邻帧内容比较相近,为了减少检索计算量,从中提取视频关键帧。文章介绍了从交通监控视频中提前关键帧的常用方法,着重研究了基于内容提取关键帧,并对此种方法做了一定的改进,减少了计算量。文章中阐述了根据欧式距离的大小确定本帧和前后帧的相似度,欧式距离极大时表示三帧间相似度极小的思想,并在此基础上实现了视频关键帧的提取,给出了实验结果。%Considering content of the adjacent frames in the traffic monitoring video is similar, in order to reduce the searching computation, extract key frames from the video . This paper first introduced the commonly methods of extracting key frames from the traffic surveillance video , then studied the method of extracting key frames based on content, and done some improve-ment in this kind of method, reduced the amount of calculation. This paper elaborated according to the size of the Euclidean dis-tance to determine the similarity of before and after the frame and the frame, Euclidean distance will be a maximal value when the three frame were little similarity , and on this basis to realize extracting the key frames from the video , and the paper gave the experimental results .

  14. Video-assisted thoracoscopic surgery(VATS)for the treatment of 48 patients with spontaneous pneumothorax%电视胸腔镜手术治疗自发性气胸48例

    Institute of Scientific and Technical Information of China (English)

    宫心明; 李志强; 韩孔启

    2014-01-01

    目的:总结电视胸腔镜手术( Video-assisted thoracoscopic surgery,VATs)治疗自发性气胸的临床经验。方法:分析48例经VATs治疗的自发性气胸患者的临床资料和临床疗效。结果:48例行VATs治疗的自发性气胸均获成功,所有患者均顺利出院。手术时间30~70min,平均45 min;术中出血量20~100 ml,平均50 ml;术后胸腔引流管留置时间1~7 d,平均2.8 d;随访6~40个月,无气胸复发。结论:VATs是彻底治疗自发性气胸的最佳方法,其疗效确切,具有创伤小,恢复快等优点。%Objective To summary the clinical significance of video-assisted thoracoscopic surgery( VATs)for the treatment of spon-taneous pneumothorax. Method The clinical data of 48 patients with spontaneous pneumothorax who were given VATs treatment,which were analyzed retrospectively and their clinical effect was observed. Results All of the patients were cured. There was no operative death in the group. The operation time was 30~70 min( mean,45 min),the amount of bleeding was 20~100 ml( mean,50 ml)and the chest drain-age tube was detained for 1~7 days( mean,2. 8 days). No recurrence cure was found in the 6 to 40 months follow-up. Conclusion VATs is the best way to cured the spontaneous pneumothorax,it is effective,minimally invasive and rapid recovery.

  15. Video Analytics

    DEFF Research Database (Denmark)

    include: re-identification, consumer behavior analysis, utilizing pupillary response for task difficulty measurement, logo detection, saliency prediction, classification of facial expressions, face recognition, face verification, age estimation, super-resolution, pose estimation, and pain recognition......This book collects the papers presented at two workshops during the 23rd International Conference on Pattern Recognition (ICPR): the Third Workshop on Video Analytics for Audience Measurement (VAAM) and the Second International Workshop on Face and Facial Expression Recognition (FFER) from Real...

  16. Use of 24 h Esophageal pH Monitoring to Demonstrate Alkaline Reflux as a Complication of Gastric Bypass Surgery

    Directory of Open Access Journals (Sweden)

    J Patrick Shoenut

    1994-01-01

    Full Text Available A 35-year-old female who had previously undergone a gastric stapling procedure for morbid obesity presented with a persistent nocturnal cough that was treated over a three-year period as a gastric acid reflux complication of the bypass surgery. A barium swallow demonstrated gastroesophageal reflux, but the symptoms did not resolve after treatment with omeprazole and cisapride. Twenty-four hour esophageal pH monitoring subsequently found alkaline reflux in excess of 17% of the total time, with no acid reflux demonstrated. Surgical revision of the bypass Leaving the hiatus alone corrected the reflux complication and the symptoms resolved without further treatment. The diagnostic capability of pH monitoring is illustrated in a patient with an unusual surgical complication.

  17. Monitoring equine visceral pain with a composite pain scale score and correlation with survival after emergency gastrointestinal surgery

    NARCIS (Netherlands)

    van Loon, Johannes P A M; Jonckheer-Sheehy, Valerie S M; Back, Willem; van Weeren, René; Hellebrekers, Ludo J; Back, Wim

    2014-01-01

    Recognition and management of equine pain have been studied extensively in recent decades and this has led to significant advances. However, there is still room for improvement in the ability to identify and treat pain in horses that have undergone emergency gastrointestinal surgery. This study asse

  18. Monitoring equine visceral pain with a composite pain scale score and correlation with survival after emergency gastrointestinal surgery.

    Science.gov (United States)

    van Loon, Johannes P A M; Jonckheer-Sheehy, Valerie S M; Back, Willem; van Weeren, P René; Hellebrekers, Ludo J

    2014-04-01

    Recognition and management of equine pain have been studied extensively in recent decades and this has led to significant advances. However, there is still room for improvement in the ability to identify and treat pain in horses that have undergone emergency gastrointestinal surgery. This study assessed the validity and clinical application of the composite pain scale (CPS) in horses after emergency gastrointestinal surgery. Composite pain scores were determined every 4h over 3 days following emergency gastrointestinal surgery in 48 horses. Inter-observer reliability was determined and another composite visceral pain score (numerical rating scale, NRS) was determined simultaneously with CPS scores. CPS scores had higher inter-observer reliability (r=0.87, K=0.84, Pscores (r=0.68, K=0.72, Pscores compared to horses that were euthanased or had to undergo re-laparotomy (Pscores. In conclusion, the use of the CPS improved objectivity of pain scoring in horses following emergency gastrointestinal surgery. High inter-observer reliability allows for comparisons between different observers. This will be of great benefit in larger veterinary hospitals where several attending clinicians are often involved in the care of each case.

  19. Monitoring equine visceral pain with a composite pain scale score and correlation with survival after emergency gastrointestinal surgery

    NARCIS (Netherlands)

    van Loon, Johannes P A M|info:eu-repo/dai/nl/304834610; Jonckheer-Sheehy, Valerie S M; Back, Willem; van Weeren, René|info:eu-repo/dai/nl/074628550; Hellebrekers, Ludo J|info:eu-repo/dai/nl/073499234; Back, Wim|info:eu-repo/dai/nl/125023707

    Recognition and management of equine pain have been studied extensively in recent decades and this has led to significant advances. However, there is still room for improvement in the ability to identify and treat pain in horses that have undergone emergency gastrointestinal surgery. This study

  20. 基于嵌入式软核Nios Ⅱ的网络视频监控系统%Embedded Network Video Monitoring System Based on Soft-core Nios Ⅱ

    Institute of Scientific and Technical Information of China (English)

    王红

    2011-01-01

    This paper introduces Nios II HW/SW designing process in detail, designs the network video monitoring system and transplants the LwIP stack and Linux to Nios II system. By selecting the proper micro operating system - Linux and TCP/IP stack - LwIP, remote users can access the Web pages storied in Nios system by a browser, and real-time monitor videos through Internet on client programs.%讨论NiosⅡ嵌入式系统的硬件/软件设计的关键流程,通过将LwIP协议栈和Linux操作系统移植到NiosⅡ系统,设计基于NiosⅡ软核处理器的网络视频监控系统.实验测试表明,合理选择微型操作系统MicroC/OS-U和TCP/IP协议栈LwIP,远端用户可以通过浏览器访问存储在本系统上的Web页面,同时实现实时的网络视频监控.

  1. 36例心电监护下种植手术临床观察%Clinical Observation of 36 Cases with Implant Surgery under ECG Monitoring

    Institute of Scientific and Technical Information of China (English)

    高巍; 张晓; 姜霞

    2013-01-01

    目的:在心电监护辅助下对心脑血管疾病患者进行种植牙植入手术,观察临床效果.方法:对36例患有心脑血管疾病者,在心电监护下进行种植外科手术,观察并监测手术过程,麻醉前后、手术前后的血压、心率变化,进行对比分析.结果:36例患者全部顺利完成手术,其中男性19例,女性17例,平均年龄67.9岁(45~81岁),平均手术时间51 min(20~134) min.麻醉前、后,术前、术后血压、心率较为平稳,心电图(67.7%)变化不大.结论:对患有心脑血管疾病、全身条件较差者,在心电监护下进行种植外科手术是比较可行的方式.%Objective:In the electrocardiographic monitoring conditions,to observe the clinical effect of the oral implant surgery patients with cardio-cerebral-vascular disease.Methods:36 patients with cardio-cerebro-vascular diseases were observed and monitored blood pressure,heart rate changes before,during and after implant surgery.Results:All 36 patients successfully completed surgery,19 cases were male and 17 females,mean age 67.9years (45 to 81 years old),average operation time was 51min (20-134min).Before and after anesthesia,pre and post operation the blood pressure and heart rate were steady,little change in electrocardiogram (67.7%).Conclusion:For patients suffering from cardio-cerebro-vascular diseases,with systemic conditions worse,ECG monitoring is a more feasible way to give implant surgery.

  2. Tendon Transfer Surgery

    Science.gov (United States)

    ... Z Videos Infographics Symptom Picker Anatomy Bones Joints Muscles Nerves Vessels Tendons About Hand Surgery What is a Hand Surgeon? What is ... include: Repair or transfer of nerves Repair of muscle or tendon Splinting or fusion of joints Find a hand surgeon in your area to discuss the best ...

  3. 胸腔镜胸腺扩大切除术的方法和效果分析%Surgery approach and effectiveness of video-assisted thoracoscopic(VATS) extended thymectomy

    Institute of Scientific and Technical Information of China (English)

    罗文琦; 甄文俊; 欧阳小康; 王怀斌; 谭洁

    2012-01-01

    目的 探讨电视胸腔镜(VATS)下胸腺扩大切除术治疗重症肌无力(MG)的手术方法和效果.方法 52例重症肌无力合并胸腺瘤或者单纯胸腺增生的患者在胸腔镜下完成胸腺瘤、胸腺扩大切除术.结果 手术均在VATS下完成,无中转开胸者,无严重围手术期并发症,其中胸腺增生45例,胸腺瘤7例.随访6~12个月,完全缓解6例,部分缓解42例,无效4例.结论 MG患者行VATS胸腺瘤、胸腺扩大切除术安全,可行,效果理想,值得临床推广.%Objective To discuss the surgery approach and effectiveness of video-assisted thoracoscopic(VATS) extended thymectomy. Methods Clinical data of 52 myasthenia gravis (MC) patients with thymoma or simple thymus hy-perplasia treated by VATS were reviewed retrospectively. Results VATS excision of thymoma was performed in 7 patients, extended thymectomy were performed in 45 patients. None was converted to thoracoectomy. The operation time was 55-150 min( 80 min in average). The blood loss was during the procedure was 50-200 ml(120 ml in average). The time of chest tube implementation was 1-3 d. The hospitalization length after surgery was 3~5 days. No intra or post-operative death or complications were reported. No myasthenia gravity crisis occurred. The follow-up period after operation was 6-12 months. Six patients achieved complete relief, 42 patients achieved partial relief, the other 4 patients kept stable. Conclusions Excision of thymoma and extended thymectomy by VATS is safe and effective, therefore it is a preferred choice for patients with myasthenia gravis.

  4. CT-guided marking of pulmonary nodules with a special lung marking wire before video-assisted thoracoscopic surgery. Review of 184 cases; CT-gestuetzte Drahtmarkierung vor videoassistierter thorakoskopischer OP von pulmonalen Rundherden. Eine Auswertung von 184 Faellen

    Energy Technology Data Exchange (ETDEWEB)

    Schulze, M.K.; Eichfeld, U.; Kahn, T.; Stumpp, P. [Universitaetsklinikum Leipzig AoeR (Germany). Klinik und Poliklinik fuer Diagnostische und Interventionelle Radiologie

    2012-06-15

    Purpose: Minimally invasive techniques like video-assisted thoracoscopic surgery (VATS) are currently the method of choice for the resection of small pulmonary nodules, when they are located in the periphery of the lungs. To guarantee quick and safe intraoperative identification of the nodule, preoperative marking is necessary and sensible. We report about our experiences in 184 markings with a special lung marking wire, which is placed in or around the pulmonary nodule using CT guidance. Materials and Methods: In 184 patients (97 m, 87f, mean age: 58.1 {+-} 13.7 years) with pulmonary nodules, scheduled for resection with VATS, a special lung marking wire was placed preoperatively under CT guidance. We evaluated the technical success, safety, necessity of conversion to thoracotomy and histology in all patients. Results: The marking wire could be positioned successfully in 181 cases (98.4 %). There was one major complication (uncontrollable pneumothorax). Minor adverse events like small pneumothorax (53.3 %) or a perifocal bleeding (30.4 %) did not necessitate treatment. Complete resection of the marked nodule was successful in 98.4 % of the patients. Conversion to thoracotomy was necessary in 29 patients (15.9 %) due to bleeding, adhesions, malignancy or wire dislocation. Histology revealed a benign nodule in 96 cases (54.4 %) and a malignant lesion in 78 cases (45.6 %), of which only 21 nodules (11.5 %) turned out to present a primary pulmonary carcinoma. Conclusion: CT-guided marking of pulmonary nodules using a special marking wire followed by thoracoscopic resection is an efficient and safe method for diagnosing suspicious nodules in the periphery of the lung. (orig.)

  5. Módulo pleuroscopía Patología pleural: Toracoscopía y videotoracoscopía Video assisted thoracic surgery (VATS and medical thoracoscopy in pleural diseases

    Directory of Open Access Journals (Sweden)

    JOSE M CLAVERO R

    2008-03-01

    Full Text Available En los últimos años se han producido importantes avances en las técnicas quirúrgicas que permiten tratar prácticamente todas las patologías pleurales y pulmonares por videotoracoscopía, con una rápida recuperación postoperatoria y mínima morbi-mortalidad. Se ha perfeccionado además por médicos internistas la toracoscopía médica, técnica utilizada para el estudio de las enfermedades de la pleura, que permite también realizar algunos procedimientos terapéuticos. En el presente artículo se comenta brevemente la historia de la videotoracoscopía y la toracoscopía médica y sus aplicaciones actuales. Se realiza un análisis crítico de las principales indicaciones de la toracoscopía médica: estudio de derrames pleurales, manejo del derrame pleural de origen neoplásico y del neumotorax espontáneo. Sus resultados se comparan, a la luz de la evidencia existente, con otros procedimientos quirúrgicos menos complejos y con la videotoracoscopíaIn the last years important advances have taken place in the surgical field allowing to treat practically all pleural pathologies by video-assisted thoracic surgery (VATS, with prompt recovery and minimal morbidity and mortality. Internists had also perfected the medical thoracoscopy, a technique used for the study of pleural diseases, which also allows performing some therapeutic procedures. The present article briefly comments the history of medical thoracoscopy and VATS and their current applications. A critical analysis of the principal indications of medical thoracoscopy is presented: study of pleural effusions, management of malignant pleural effusion and spontaneous pneumothorax. The results are compared, in view of the existing evidence, with other less complex surgical procedures and VATS

  6. 数字化视频监控在手术室外科手消毒中的应用%Application of digital video monitoring on surgical hand disinfection in the operation room

    Institute of Scientific and Technical Information of China (English)

    朱学明

    2015-01-01

    目的:探讨数字化视频监控在手术室外科手消毒中的应用效果。方法我院手术室2013年1~6月采用直接观察法监管手术室外科手消毒(监控前组),2013年7~12月采用数字化视频监控法监管手术室外科手消毒(监控后组),比较监控前后手术人员外科手消毒后手部皮肤细菌菌落数监测结果、外科手消毒正确率和清洁切口手术部位感染率。结果数字化视频监控前后外科手消毒后手部皮肤细菌菌落数监测结果差异无统计学意义(P >0.05);清洁切口手术部位感染率从监控前0.62%降至监控后的0.20%(χ2=4.079,P =0.043);手术医生、护士和实习生的外科手消毒正确率监控后明显提高,差异均均有统计学意义(P <0.05)。结论数字化视频监控可促进手术人员外科手消毒的规范化、标准化,确保手术患者安全。%Objective To investigate the effect of application of digital video monitoring on surgical hand disinfection in the operation room.Methods The surgical hand disinfection in the operation room was inspected by a direct observation method during January to June of 2013(before monitoring group)while the process was monitored by the digital video monitoring during July to Decem -ber of 2013(after monitoring group).The skin bacterial colony number of the disinfection hand, the correct rate of surgical hand disin -fection and the infection rate of surgical incision site were compared between the two groups .Results There was no significant differ-ence in monitoring results of bacterial colony count in hand skin after surgical hand disinfection between the two groups (P >0.05).Op-eration incision site infection rate was decreased from 0.62% before monitoring to 0.20% after monitoring(χ2 =4.079,P =0.043). The correct rate of surgical disinfection of surgeons ,operation room nurses and intern nurses was significantly improved after monitoring (P

  7. Prevalence of and risk factors for perioperative arrhythmias in neonates and children after cardiopulmonary bypass: continuous holter monitoring before and for three days after surgery

    Directory of Open Access Journals (Sweden)

    Vazquez-Jimenez Jaime F

    2010-10-01

    Full Text Available Abstract Background A comprehensive evaluation of postoperative arrhythmias following surgery for congenital heart disease by continuous Holter monitoring has not been carried out. We aimed, firstly, to establish the time course of pre- and early postoperative arrhythmias by beat-to-beat analysis following cardiopulmonary bypass and, secondly, to examine which surgical procedures present risk factors for specific arrhythmias. Methods 494 consecutive patients, including 96 neonates, were studied with serial 24-hour Holter electrocardiograms before as well as uninterruptedly during the first 72 hours after surgery and prior to discharge. Results Within 24 hours of surgery 59% of the neonates and 79% of the older children developed arrhythmias. Junctional ectopic tachycardia occurred in 9% of neonates and 5% of non-neonates and ventricular tachycardia in 3% and 15%, respectively. For neonates, male sex and longer cross-clamping time independently increased the risk for arrhythmias (odds ratios 2.83 and 1.96/minute, respectively. Ventricular septal defect repair was a strong risk factor for junctional ectopic tachycardia in neonates and in older children (odds ratios 18.8 and 3.69, respectively. For infants and children, older age (odds ratio 1.01/month and closure of atrial septal defects (odds ratio 2.68 predisposed to arrhythmias of any type. Conclusions We present the largest cohort of neonates, infants and children that has been prospectively studied for the occurrence of arrhythmias after cardiac surgery. Postoperative arrhythmias are a frequent and transient phenomenon after cardiopulmonary bypass, provoked both by mechanical irritation of the conduction system and by humoral factors.

  8. Cálculo dos custos do reprocessamento de pinças de uso único utilizadas em cirurgia vídeo-assistida Cálculo de los costos del reprocesamiento de pinzas de uso único utilizadas en cirugía video-asistida Calculation of the reprocessing costs of single-use tongs used in video-assisted surgeries

    Directory of Open Access Journals (Sweden)

    Eliane Molina Psaltikidis

    2006-06-01

    Full Text Available O trabalho objetivou desenvolver proposta metodológica para cálculo dos custos do reprocessamento de pinças de cirurgia vídeo-assistida de uso único. O reuso freqüente desses artigos ocorre pelo alto custo, entretanto, poucos estudos foram desenvolvidos a respeito desse enfoque. Elaborou-se um fluxograma com cada fase de reprocessamento, permitindo identificação dos componentes dos custos quanto à mão-de-obra, materiais e gastos indiretos. Pautado nesses dados, pôde-se construir a proposta metodológica para o cálculo de custos, baseada no método de custeio por absorção, incluindo a planilha para coleta de dados.El trabajo tuvo como objetivo desarrollar propuesta metodológica para el cálculo de los costos del reprocesamiento de pinzas de cirugía video-asistida de uso único. El uso frecuente de esos artículos ocurre por el alto costo, no obstante, pocos estudios fueron desarrollados respecto a ese enfoque. Se elaboró un fluxograma con cada fase del reprocesamiento, permitiendo la identificación de los componentes de los costos en cuanto a la mano de obra, materiales y gastos indirectos. Teniendo como pauta esos datos, se puede construir la propuesta metodológica para el cálculo de costos, con base en el método de costeo por absorción, incluyendo la planilla para recolección de datos.The frequent reuse of disposable forceps instruments is justified by their high cost. However, few studies have been carried out on this topic. The objective of this study was to develop a methodological proposal for calculating the reprocessing costs for these instruments used in video-assisted surgery. A flowchart was developed for each phase of the reprocessing. This allowed subsequent identification of the cost components in terms of labor, materials and indirect expenses. From these data, a methodological proposal for cost calculation could be created, based on the Full Absorption Costing Method, including the spreadsheet for data

  9. The Danish Fracture Database can monitor quality of fracture-related surgery, surgeons' experience level and extent of supervision

    DEFF Research Database (Denmark)

    Andersen, M. J.; Gromov, K.; Brix, M.

    2014-01-01

    INTRODUCTION: The importance of supervision and of surgeons' level of experience in relation to patient outcome have been demonstrated in both hip fracture and arthroplasty surgery. The aim of this study was to describe the surgeons' experience level and the extent of supervision for: 1) fracture...... on the surgeons' level of experience, extent of supervision, type (primary, planned secondary or reoperation), classification (AO Muller), and whether they were performed during or outside regular hours. RESULTS: Interns and junior residents combined performed 46% of all procedures. A total of 90% of surgeries...... by interns were performed under supervision, whereas 32% of operations by junior residents were unsupervised. Supervision was absent in 14-16% and 22-33% of the three most frequent primary procedures and reoperations when performed by interns and junior residents, respectively. The proportion of unsupervised...

  10. Alterações cromossômicas causadas pela radiação dos monitores de vídeo de computadores Chromosome abnormalities caused by computer video display monitors' radiation

    Directory of Open Access Journals (Sweden)

    Marcos Roberto Higino Estécio

    2002-06-01

    Full Text Available OBJETIVO: Em decorrência dos questionamentos sobre o efeito deletério das radiações emitidas pelo campo eletromagnético (CEM dos tipos ELF (extremely low frequency e VLF (very low frequency transmitidas pelos monitores de vídeo dos computadores (CRT, foi avaliada a freqüência de anomalias cromossômicas estruturais e a cinética do ciclo celular em indivíduos expostos por seu trabalho à radiação dos CRT. MÉTODOS: A pesquisa de aberrações cromossômicas foi realizada em 2.000 metáfases de primeira divisão celular obtidas de culturas de 48h de linfócitos de sangue venoso periférico de dez indivíduos expostos ao CRT (grupo E e de dez controles (grupo C. A cinética do ciclo celular foi pesquisada pelos índices mitótico (IM e de proliferação celular (IPC. RESULTADOS: A análise estatística evidenciou freqüências significativamente maiores de metáfases com anomalias cromossômicas (E=5,9%; C=3,7% e anomalias/célula (E=0,066±0,026; C=0,040±0,026 nos indivíduos expostos aos CRTs. As alterações citogenéticas mais comuns foram as quebras cromatídicas, com freqüência de 0,034±0,016 no grupo E e de 0,016±0,015 no grupo C. As freqüências de IM e IPC não apresentaram diferenças significantes entre os grupos avaliados. CONCLUSÕES: Os resultados sugerem um efeito genotóxico do CEM emitido pelos CRTs devido à freqüência mais elevada de quebras cromatídicas, enfatizando a necessidade de haver um número maior de estudos com diferentes técnicas que vise a investigar a ação do CEM sobre o material genético.OBJECTIVE: Concerns were raised about the potential damaging effects of electromagnetic field (EMF radiation emissions of ELF (extremely low frequency and VLF (very low frequency computer video display monitors (VDM, it was assessed the frequency of structural chromosome abnormalities and investigated the cell cycle kinetics in individuals occupationally exposed to VDM radiation. METHODS: Chromosome

  11. Robotic Surgery for Thoracic Disease.

    Science.gov (United States)

    Yamashita, Shin-Ichi; Yoshida, Yasuhiro; Iwasaki, Akinori

    2016-01-01

    Robotic surgeries have developed in the general thoracic field over the past decade, and publications on robotic surgery outcomes have accumulated. However, controversy remains about the application of robotic surgery, with a lack of well-established evidence. Robotic surgery has several advantages such as natural movement of the surgeon's hands when manipulating the robotic arms and instruments controlled by computer-assisted systems. Most studies have reported the feasibility and safety of robotic surgery based on acceptable morbidity and mortality compared to open or video-assisted thoracic surgery (VATS). Furthermore, there are accumulated data to indicate longer operation times and shorter hospital stay in robotic surgery. However, randomized controlled trials between robotic and open or VATS procedures are needed to clarify the advantage of robotic surgery. In this review, we focused the literature about robotic surgery used to treat lung cancer and mediastinal tumor.

  12. Robotic Surgery for Thoracic Disease

    Science.gov (United States)

    Yoshida, Yasuhiro; Iwasaki, Akinori

    2016-01-01

    Robotic surgeries have developed in the general thoracic field over the past decade, and publications on robotic surgery outcomes have accumulated. However, controversy remains about the application of robotic surgery, with a lack of well-established evidence. Robotic surgery has several advantages such as natural movement of the surgeon’s hands when manipulating the robotic arms and instruments controlled by computer-assisted systems. Most studies have reported the feasibility and safety of robotic surgery based on acceptable morbidity and mortality compared to open or video-assisted thoracic surgery (VATS). Furthermore, there are accumulated data to indicate longer operation times and shorter hospital stay in robotic surgery. However, randomized controlled trials between robotic and open or VATS procedures are needed to clarify the advantage of robotic surgery. In this review, we focused the literature about robotic surgery used to treat lung cancer and mediastinal tumor. PMID:26822625

  13. Assessing the need for a protocol in monitoring weight loss and nutritional status in orthognathic surgery based on patients experiences.

    Science.gov (United States)

    Ruslin, Muhammad; Dekker, Hannah; Tuinzing, Dirk B; Forouzanfar, Tymour

    2017-02-01

    To investigate retrospectively the orthognathic surgery (OGS) patients experience in weight loss and the influence of gender, age, duration of the surgical procedure, length of hospital stay, location of surgery and use of intermaxillary fixation (IMF) or without IMF on postoperative weight loss. A total of 4487 patients treated by OGS where all patients visited the outpatient clinic one, three and six weeks after the surgical procedure. After six weeks, patients filled out a questionnaire in which weight loss was addressed. The patients were asked to give an estimate of their experiences weight loss. The population was first divided in two groups weight loss and no weight loss. In the weight loss group there is no significant difference in weight loss between patients with IMF and patients without IMF. In the weight loss group there were significantly more females then males. Further, in the subgroup IMF the operation time was significantly longer compared with the subgroup without IMF. The other parameters including age and hospital stay were not different in the groups. IMF in orthognathic treatment does not result in a difference self-reported loss of body weight compared to patients without IMF. Treatment protocols should include pre- and post-operative dietician consultations and possible indications for medical nutrition and vitamins. Key words:Assessing, protocol, weight loss, experiences, orthognathic surgery.

  14. Assessing the need for a protocol in monitoring weight loss and nutritional status in orthognathic surgery based on patients experiences

    Science.gov (United States)

    Dekker, Hannah; Tuinzing, Dirk B.; Forouzanfar, Tymour

    2017-01-01

    Background To investigate retrospectively the orthognathic surgery (OGS) patients experience in weight loss and the influence of gender, age, duration of the surgical procedure, length of hospital stay, location of surgery and use of intermaxillary fixation (IMF) or without IMF on postoperative weight loss. Material and Methods A total of 4487 patients treated by OGS where all patients visited the outpatient clinic one, three and six weeks after the surgical procedure. After six weeks, patients filled out a questionnaire in which weight loss was addressed. The patients were asked to give an estimate of their experiences weight loss. The population was first divided in two groups weight loss and no weight loss. Results In the weight loss group there is no significant difference in weight loss between patients with IMF and patients without IMF. In the weight loss group there were significantly more females then males. Further, in the subgroup IMF the operation time was significantly longer compared with the subgroup without IMF. The other parameters including age and hospital stay were not different in the groups. Conclusions IMF in orthognathic treatment does not result in a difference self-reported loss of body weight compared to patients without IMF. Treatment protocols should include pre- and post-operative dietician consultations and possible indications for medical nutrition and vitamins. Key words:Assessing, protocol, weight loss, experiences, orthognathic surgery. PMID:28210448

  15. 嵌入式无线视频监控系统的设计与实现%Design and Implementation of Embedded Wireless Video Monitoring System

    Institute of Scientific and Technical Information of China (English)

    王越; 庞振营; 王帅; 范先星

    2015-01-01

    以搭载 S3C2440微处理器的 ARM9开发板为硬件平台,使用 USB 免驱摄像头作为视频图像采集设备,通过 Linux 内核提供的统一接口 V4L2实现视频图像的采集。系统使用MJPEG 算法压缩技术实现视频数据的编解码,使用无线 WiFi 技术将视频数据传输给客户端。嵌入式设备终端采集视频数据软件是基于 Linux 开源的 MJPG-streamer 软件,针对本系统的需要进行了重新编写,并使用多线程技术。PC 机端的监控管理平台是基于 Qt 和 OpenCV 开发的一款具有友好图形用户界面的客户端软件。同时,在手机移动端基于 Android 开发了一款易安装、易操作的 APP 客户端。实验结果表明:该系统运行稳定,在视频监控客户端能获得清晰流畅的视频流数据。%This system was equipped with S3C2440 ARM9 microprocessor development board for the hardware platform and the Linux system was built on the platform. Using the USB camera-free drive as a video capture device,using the Linux kernel to provide a uniform interface for V4L2 video image capture and the algorithm of MJPEG to compress and decode the video data,and transmit these to cli-ent through WiFi technology. Server-side MJPG-streamer video data acquisition software was based on Linux open source software and this system needed to be overhauled and used multithreading technolo-gy. The client that based on Qt and OpenCV has a friendly graphical user interface and is easily in-stalled and operated APP client based on Android for mobile phone. The experimental results show that the system runs stably and both clients can get a clear and smooth video streaming data.

  16. Video-rate volumetric optical coherence tomography-based microangiography

    Science.gov (United States)

    Baran, Utku; Wei, Wei; Xu, Jingjiang; Qi, Xiaoli; Davis, Wyatt O.; Wang, Ruikang K.

    2016-04-01

    Video-rate volumetric optical coherence tomography (vOCT) is relatively young in the field of OCT imaging but has great potential in biomedical applications. Due to the recent development of the MHz range swept laser sources, vOCT has started to gain attention in the community. Here, we report the first in vivo video-rate volumetric OCT-based microangiography (vOMAG) system by integrating an 18-kHz resonant microelectromechanical system (MEMS) mirror with a 1.6-MHz FDML swept source operating at ˜1.3 μm wavelength. Because the MEMS scanner can offer an effective B-frame rate of 36 kHz, we are able to engineer vOMAG with a video rate up to 25 Hz. This system was utilized for real-time volumetric in vivo visualization of cerebral microvasculature in mice. Moreover, we monitored the blood perfusion dynamics during stimulation within mouse ear in vivo. We also discussed this system's limitations. Prospective MEMS-enabled OCT probes with a real-time volumetric functional imaging capability can have a significant impact on endoscopic imaging and image-guided surgery applications.

  17. 风光互补供电系统在输电线路视频监控中的应用%Application of Wind and Solar Hybrid Power Supply System in Transmission Line Video Monitoring

    Institute of Scientific and Technical Information of China (English)

    曾东; 杜俊杰; 许金明; 张勇

    2012-01-01

    Solar power supply adopted presently cannot content with transmission line video monitoring that worked round-the-clockly and operated-stably in the sequential overcast and rainy weather,consequently formed the blind spot of the transmission line danger location site monitoring,wind and solar hybrid power supply system that uses the complementary between wind And solar resource resolves the question availably.The article introduced the configuration and work elements of wind and solar hybrid power supply system,through analyzing the fact electro-requirement of equipment in transmission line round-the-clock video monitoring system,design the configuration and installation scheme.%目前采用的太阳能供电无法满足输电线路视频监控全天候以及在连续阴雨天持续稳定运行从而形成危险点现场监控盲点,风光互补供电系统利用风能和太阳能资源的互补性实现全天候发电,有效地解决了该问题。本文介绍了风光互补供电系统结构和工作原理,通过分析输电线路全天候视频监控系统各设备的实际用电需求,设计了蓄电池、风力发电机、太阳能光伏电池阵列的配置方案和安装方案。

  18. Training value of laparoscopic colorectal videos on the World Wide Web: a pilot study on the educational quality of laparoscopic right hemicolectomy videos.

    Science.gov (United States)

    Celentano, V; Browning, M; Hitchins, C; Giglio, M C; Coleman, M G

    2017-04-04

    Instructive laparoscopy videos with appropriate exposition could be ideal for initial training in laparoscopic surgery, but unfortunately there are no guidelines for annotating these videos or agreed methods to measure the educational content and the safety of the procedure presented. Aim of this study is to systematically search the World Wide Web to determine the availability of laparoscopic colorectal surgery videos and to objectively establish their potential training value. A search for laparoscopic right hemicolectomy videos was performed on the three most used English language web search engines Google.com, Bing.com, and Yahoo.com; moreover, a survey among 25 local trainees was performed to identify additional websites for inclusion. All laparoscopic right hemicolectomy videos with an English language title were included. Videos of open surgery, single incision laparoscopic surgery, robotic, and hand-assisted surgery were excluded. The safety of the demonstrated procedure was assessed with a validated competency assessment tool specifically designed for laparoscopic colorectal surgery and data on the educational content of the video were extracted. Thirty-one websites were identified and 182 surgical videos were included. One hundred and seventy-three videos (95%) detailed the year of publication; this demonstrated a significant increase in the number of videos published per year from 2009. Characteristics of the patient were rarely presented, only 10 videos (5.4%) reported operating time and only 6 videos (3.2%) reported 30-day morbidity; 34 videos (18.6%) underwent a peer-review process prior to publication. Formal case presentation, the presence of audio narration, the use of diagrams, and snapshots and a step-by-step approach are all characteristics of peer-reviewed videos but no significant difference was found in the safety of the procedure. Laparoscopic videos can be a useful adjunct to operative training. There is a large and increasing amount of

  19. Acoustic Neuroma Educational Video

    Medline Plus

    Full Text Available ... ANA's First 25 Years Video Support Group Video Library Mark Ruffalo Story Patient Journeys ANA Public Webinars ... Groups Map Scheduled Meetings Support Group Meeting Video Library Start a Support Group ANA Discussion Forum ANetwork, ...

  20. Marketing through Video Presentations.

    Science.gov (United States)

    Newhart, Donna

    1989-01-01

    Discusses the advantages of using video presentations as marketing tools. Includes information about video news releases, public service announcements, and sales/marketing presentations. Describes the three stages in creating a marketing video: preproduction planning; production; and postproduction. (JOW)

  1. Comparison of the non-invasive Nexfin® monitor with conventional methods for the measurement of arterial blood pressure in moderate risk orthopaedic surgery patients.

    Science.gov (United States)

    Balzer, Felix; Habicher, Marit; Sander, Michael; Sterr, Julian; Scholz, Stephanie; Feldheiser, Aarne; Müller, Michael; Perka, Carsten; Treskatsch, Sascha

    2016-08-01

    Continuous invasive arterial blood pressure (IBP) monitoring remains the gold standard for BP measurement, but traditional oscillometric non-invasive intermittent pressure (NIBP) measurement is used in most low-to-moderate risk procedures. This study compared non-invasive continuous arterial BP measurement using a Nexfin® monitor with NIBP and IBP monitors. This was a single-centre, prospective, pilot study in patients scheduled for elective orthopaedic surgery. Systolic BP, diastolic BP and mean arterial blood pressure (MAP) were measured by Nexfin®, IBP and NIBP at five intraoperative time-points. Pearson correlation coefficients, Bland-Altman plots and trending ability of Nexfin® measurements were used as criteria for success in the investigation of measurement reliability. A total of 20 patients were enrolled in the study. For MAP, there was a sufficient correlation between IBP/Nexfin® (Pearson = 0.75), which was better than the correlation between IBP/NIBP (Pearson = 0.70). Bland-Altman analysis of the data showed that compared with IBP, there was a higher percentage error for MAPNIBP (30%) compared with MAPNexfin® (27%). Nexfin® and NIBP underestimated systolic BP; NIBP also underestimated diastolic BP and MAP. Trending ability for MAPNexfin® and MAPNIBP were comparable to IBP. Non-invasive BP measurement with Nexfin® was comparable with IBP and tended to be more precise than NIBP. © The Author(s) 2016.

  2. Research and Implementation of Remote Video Monitoring System Based on Embedded Web%基于Web的嵌入式远程监控系统的研究与实现

    Institute of Scientific and Technical Information of China (English)

    杨宏; 张志文

    2012-01-01

    Video monitoring used in every field of social life, and remote video monitor is become the research focus received great attention. In this paper uesd the ARM9 processor as the cor