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Sample records for asepsis

  1. Does Prebiopsy, Nonsterile Ultrasonography Gel Affect Biopsy-Site Asepsis?

    International Nuclear Information System (INIS)

    Purpose. The purpose of this study was to determine the extent to which the use of nonsterile gel, prior to antiseptic procedures in ultrasonography (US)-guided percutaneous biopsies, results in contamination of the biopsy site. Materials and Methods. Patients referred for US-guided percutaneous biopsies were included in this study. Transmission material used for US evaluation before biopsy-site antiseptic procedures were performed was either nonsterile gel or sterile saline. Patients were randomly assigned to two groups: nonsterile gel (n = 30) and sterile saline (n = 30). Before the transmission material was used and after antiseptic procedures were performed, microbial swabs of a 10-cm2-diameter area were obtained at the biopsy site. Swabs were also obtained from the gel, saline, and povidine-iodine. Inoculated specimen plates were incubated at 37oC under aerobic conditions, and the numbers of colony-forming units recorded. Nominal logistic regression analysis was used to calculate the odds of postantisepsis bacterial growth (after antiseptic procedures were performed) based on group, gender, coincidental disease (diabetes, chronic renal failure, and malignancy), biopsy-site location (head and neck or breast and abdomen), and local factors (skin fold, skin tag, and hair). Results. The following odds ratios (adjusted for the other variables) and their 95% confidence intervals were calculated: (1) group (2.9 [0.8-11.1]; p = 0.10); (2) gender (1.2 [0.3-5.2]; p = 0.78); (3) coincidental disease (7.6 [0.9-166.7]; p = 0.09); (4) biopsy site location (6.2 [1.4-31.3]; p = 0.02); and (5) local factors (7.0 [1.6-36.0]; p = 0.01). No bacterial growth occurred with swabs obtained from gel, povidine-iodine, or saline. Conclusion. We conclude that nonsterile gel used prior to percutaneous biopsy does not affect biopsy-site asepsis

  2. Does the level of asepsis impact the success of surgically implanting tags in Atlantic salmon?

    DEFF Research Database (Denmark)

    Jepsen, Niels; Boutrup, Torsten S.; Midwood, Jonathan D.;

    2013-01-01

    It is generally recommended that a high level of asepsis be maintained during surgical implantation of electronic tags into fish. However, documentation of a positive effect of asepsis in fish surgery is lacking. To compare the effects of surgical implantation performed under different sanitary...... conditions, 100 hatchery salmon smolts (Salmo salar) were surgically implanted with tags with and without trailing antenna and were kept in a hatchery facility. After 34 days, the surviving smolts were euthanized and survival, growth and healing were compared between fish tagged under aseptic conditions...

  3. Technology development and application of asepsis cool-filling desserts%无菌冷罐装含乳甜点的技术开发和应用

    Institute of Scientific and Technical Information of China (English)

    胡姝敏; 朱雅玲

    2013-01-01

    Abstracts:The technology development and application of asepsis cool-filling desserts that fit for China were studied.By studying technical characters of asepsis cool-filling desserts and relative hydrocolloids application character,the technology (parameter),technology flow and hydrocolloids were confirmed,and the hydrocolloids were composed for functional system applied for asepsis cool-filling desserts to produce desserts that have very good texture and sensory organ property,including neutrosphere chocolate dessert and acidic pudding dessert.%研究了适合我国现有生产条件和市场发展状况的无菌冷灌装甜点的技术与应用.通过研究无菌冷灌装甜点的工艺特征及相关胶体应用特征,选择适合的亲水胶体,通过科学实验设计和生产验证,完成了利用超高温灭菌和无菌罐装技术生产不同质构的含乳甜点的工艺流程和稳定体系的设计.

  4. Evaluation of asepsis, agar concentration and culture medium composition methods for in vitro propagation of Pimpinella anisum (Linn.) – Apiaceae
    Avaliação de métodos de esterilização, concentração de ágar e composição de meio de cultura para propagação in vitro de Pimpinella anisum (Linn.) – Apiaceae

    OpenAIRE

    Gabriela Tambosi; Gladys Daniela Rogge-Renner

    2010-01-01

    Pimpinella anisum, is a plant species popularly used as treatment for different diseases, although no studies exist which could prove its pharmacological activity. This species has no known methods of asepsis and adequate conditions to conduct in vitro propagation trials. To assess the most efficient method of seed sterilization and the most favorable concentration of agar and MS salts, five tests of asepsis and tests to evaluate the dry mass increase of germinated seed in 3g/L and 6g/L of ag...

  5. Evaluation of asepsis, agar concentration and culture medium composition methods for in vitro propagation of Pimpinella anisum (Linn. – Apiaceae Avaliação de métodos de esterilização, concentração de ágar e composição de meio de cultura para propagação in vitro de Pimpinella anisum (Linn. – Apiaceae

    Directory of Open Access Journals (Sweden)

    Gabriela Tambosi

    2010-12-01

    Full Text Available Pimpinella anisum, is a plant species popularly used as treatment for different diseases, although no studies exist which could prove its pharmacological activity. This species has no known methods of asepsis and adequate conditions to conduct in vitro propagation trials. To assess the most efficient method of seed sterilization and the most favorable concentration of agar and MS salts, five tests of asepsis and tests to evaluate the dry mass increase of germinated seed in 3g/L and 6g/L of agar and MS in concentrations of 0%, 25%, 50%, 75% and 100%, were carried out. The samples that were immersed in a concentration of 2% sodium hypochlorite for 20 minutes and then washed in distilled water produced 100% of sterile plantlets. The greatest increase in dry mass was obtained with 75% and 100% of MS salts. Furthermore, the different concentrations of agar did not influence the percentage of the plantlets dry mass. Pimpinella anisum é uma planta popularmente utilizada como medicinal para diversas enfermidades, embora não existam estudos que comprovem sua atividade farmacológica. A espécie não apresenta metodologias conhecidas de assepsia e condições adequadas para experimentos de propagação in vitro. Para avaliar a forma mais eficiente de esterilização de sementes da espécie e melhores concentrações de ágar e sais do meio MS, foram feitos cinco testes de assepsia, bem como testes de avaliação do aumento de massa seca a partir de sementes germinadas em ágar 3g/L e 6g/L e MS nas concentrações 0%, 25%, 50%, 75% e 100%. A imersão em solução hipoclorito de sódio 2% por 20 minutos e lavagem em água destilada promoveu 100% de plântulas estéreis. O maior aumento de massa seca foi obtido com concentração de sais do meio MS de 75% e 100%, e as diferentes concentrações de ágar não influenciaram a obtenção de maior percentual de massa de plântulas cultivadas.

  6. Asepsis Sowing and Rapid Propagation of Coelogyne fimbriata Lindl.%流苏贝母兰的无菌播种与快速繁殖

    Institute of Scientific and Technical Information of China (English)

    张小燕; 白茗洲; 彭德镇; 孔令杰; 杨柏云

    2009-01-01

    @@ 1 植物名称 流苏贝母兰(Coelogyne fimbriataLindl.). 2 材料类别 种子. 3 培养条件 (1)种子萌发培养基:1/2MS+6-BA 0.5mg·L-1(单位下同)+NAA 0.5+0.1%AC(活性炭);(2)原球茎增殖培养基:B5+6-BA 1.2+NAA 0.6+15 g·L-1蔗糖;(3)分化成苗培养基:B5+6-BA 2.0+NAA 0.2+0.1%AC;(4)壮苗生根培养基:1/2MS+NAA 0.5+0.1%AC.以上除培养基(2)外均附加40 g·L-1蔗糖,用7 g·L-1琼脂固化.所有培养基pH为5.6~5.8,培养温度为(25±2)℃,光照强度为30~40 μmol·m-2·s-1,光照时间为12 h·d-1,悬浮培养时振荡的转速为110r·min-1.

  7. Infection Control in Dental Settings

    Science.gov (United States)

    ... Asepsis and Prevention Safety and Health Topics for Dentistry from the Occupational Safety and Health Administration (OSHA) USAF Dental Evaluation and Consultation Service File Formats Help: How do I view different file formats (PDF, DOC, PPT, MPEG) on this site? Adobe PDF ...

  8. 2003 CDC guidelines offer more choices for managing operatory surfaces.

    Science.gov (United States)

    2004-11-01

    The objective of this article to help dental professionals understand the changes in surface asepsis recommendations, to be able to classify environmental surfaces in the practice setting and successfully prevent or manage their contamination, as well as become familiar with the terminology used in discussing environmental surfaces and related infection control efforts. PMID:15651468

  9. Search for microorganisms in antiseptic, disinfectant and detergent dispensers of a local health care unit from Northeast Portugal

    OpenAIRE

    Alves, Maria José; Pombo, Graça; Pereira, Ana; Conde, Andreia; Soares, Isabel; Rosmaninho, Marina; Ferreira, Isabel C. F. R.

    2015-01-01

    Introduction: Health care associated infections (HCAI) are among the main causes of mortality worldwide, and of the increase of internment time and related costs. Many HCAI acquired in hospitals result from improper disinfection practices of medical devices and surfaces of the hospital environment, as also insufficient asepsis of health professional’s skin [1,2]. Objectives: The main objectives of the present work were to verify the presence of microorganisms in antiseptic, ...

  10. Day Surgery Process and Nursing Care

    OpenAIRE

    ÇİLİNGİR, Dr. Dilek; BAYRAKTAR, Prof.Dr. Nurhan

    2006-01-01

    Day surgery is defined as interventions that serve planned operation and discharging on the same day of the patients who are determined as appropriate for day surgery before operation. New surgical techniques and improvement of interventions methods, anesthesia and analgesia techniques, asepsis and using antibiotics affected development of day surgery. Preoperative evaluation, operation, discharge and postoperative observation constitute phases of day surgery process. The success of day ...

  11. Test of over-garments sterilization by gamma rays

    International Nuclear Information System (INIS)

    The aseptic state is absolutely necessary for a successful result of surgical operation. A single object badly cleaned and contaminated by microbes in the operating room may be the cause of the operation failure. The use of aseptic medical requisites is consequently essential to guarantee the security of the clinical practices. Besides, the asepsis prevents the nosocomial infections process that occurs in the hospitals and health centres

  12. The Life of John Wishart (1850–1926): Study of an Academic Surgical Career Prior to the Flexner Report

    OpenAIRE

    Claydon, Emily; McAlister, Vivian C.

    2012-01-01

    Background The 1910 Flexner Report on Medical Education in the United States and Canada is often taken as the point when medical schools in North America took on their modern form. However, many fundamental advances in surgery, such as anesthesia and asepsis, predated the report by decades. To understand the contribution of educators in this earlier period, we investigated the forgotten career of John Wishart, founding Professor of Surgery at Western University, London Ontario. Methods Archiv...

  13. ELIMINATION OF INTRACANAL INFECTION IN DOGS' TEETH WITH INDUCED PERIAPICAL LESIONS AFTER ROTARY INSTRUMENTATION: INFLUENCE OF DIFFERENT CALCIUM HYDROXIDE PASTES

    OpenAIRE

    Janir Alves Soares; Mário Roberto Leonardo; Léa Assed Bezerra da Silva; Mário Tanomaru Filho; Izabel Yoko Ito

    2006-01-01

    The aim of this study was to evaluate the antiseptic efficacy of rotary instrumentation associated with calcium hydroxide-based pastes prepared with different vehicles and antiseptics. Chronic periapical lesions were experimentally induced in 72 premolar root canals of four dogs. Under controlled asepsis, after initial microbiological sampling (A1), the root canals were instrumented using the ProFile system in conjunction with 5.25% sodium hypochlorite and the intracanal medication was placed...

  14. The ratio in choosing access flap for surgical endodontics: a review

    OpenAIRE

    Grandi, C.; Pacifici, L.

    2009-01-01

    In Surgical Endodontics we face complex situations that require the knowlflap and application of both principles of endodontics (cleansing shaping and filling) in the root management, and the principles of surgery (asepsis, non harmfulness and hemostasis) in the phase of access to the root. Among the factors of surgical relevance that for which have been proposed with the largest number of alternatives is the design of access flap. That clearly indicates that not only one flap design can be i...

  15. Is fumigation enough for air conditioning units in operation theatres and Intensive care units?

    OpenAIRE

    Anasua Deb; Sharmila Raut; Sunita Gajbhiye; Priyanka Patil; Sanjay Raut

    2016-01-01

    Background: Strict asepsis is necessary in operating theatres (OT) and intensive care units (ICU) as the patients undergo invasive procedures. The filters of contaminated air conditioning (AC) units provide a niche for proliferation of fungi and production of fungal spores. Methods: The routine procedure for maintenance of sterile atmosphere in our hospital, i.e. fumigation and mopping walls with disinfectants often fail to address these fungal spores of the AC filters. We therefore carri...

  16. Quality control of the kit and injection of 99Tcm-TRODAT-1 as a transporter imaging agent

    International Nuclear Information System (INIS)

    Objective: To study the quality control methods for 99Tcm-TRODAT-1 kit and injection. Methods: The appearance, pH, contents of the bases, the labeling yield, asepsis and bacterial endotoxins of 99Tcm-TRODAT-1 kits from three different batches were examined. The kit stability was estimated under different conditions. The transparence, pH, radiochemical purity, half-life, asepsis and bacterial endotoxins of 99Tcm-TRODAT-1 injection were tested. Results: The 99Tcm-TRODAT-1 kit and injection were both achromous and transparent, with pH values being 5.9 ± 0.1 and 5.5-7.0 respectively. The contents of stannous chloride and TRODAT-1 were stable. The labeling yield of the kit and the radiochemical purity of the injection were both ≥95%.The asepsis test demonstrated that the characters of 99Tcm-TRODAT-1 kit and injection were qualified. TRODAT-1 kit was stable at 0-4 ℃ for 6 months or at room temperature (20-25 ℃ )for 10 days, and the radiochemical purity of the injection was still >90% at room temperature for 8 hours. Conclusions: The quality control methods for 99Tcm-TRODAT-1 kit are simple and practical. The kit and injection are qualified and can be used for clinical application. (authors)

  17. Acute pelvic inflammatory disease in a sub-Saharan country: a cross sectional descriptive study

    Directory of Open Access Journals (Sweden)

    Elie Nkwabong

    2015-06-01

    Conclusions: Acute PID is common among young, single women with multiple sexual partners, who should be regularly screened for the various sexually transmissible infections. The micro-organisms frequently responsible for acute PID were genital tract mycoplasmas, whose identification should be included among the routine tests done to women with acute PID. Cases of acute PID due to intra-uterine procedures reminds us that adequate asepsis should be observed during these procedures. [Int J Reprod Contracept Obstet Gynecol 2015; 4(3.000: 809-813

  18. Work conditions and occupational health of dentists in Brazilian Public Health System

    Directory of Open Access Journals (Sweden)

    Suzely Adas Saliba Moimaz

    2014-03-01

    Full Text Available Introduction: work healthy conditions are essential for a great professional performance. Objective: To verify the perception of dentists regarding structural and healthy conditions of dental offices in the Brazilian Public Health System (SUS and their satisfaction with work and public job. Material and Method: In this cross-sectional study, type inquiry, 24 Brazilian dentists were interviewed. The follow variables were asked: cleaning and asepsis; maintenance and time of use of dental equipment; satisfaction with work and public job. Results: The professionals were "satisfied" or "very satisfied" with cleaning and asepsis (66.67%; Dental equipment (54.17%, reflectors (54.17% and the dental chairs (54.17% had more than 24 years of use; 20% of all professionals said that the equipment had maintenance but only to fix them. Of total, 58.33% had already given no attendance for patients and broken equipment was the most frequent cause (92.86%. It was observed satisfaction with work (79.1% and public job (95.83%. It was concluded that dentists who worked in SUS were satisfied with public job, although they had said the need for improvement on structural and healthy work conditions.

  19. The development and quality control of a kit for the preparation of a new myocardial perfusion imaging agent, 99Tcm N-MIBI

    International Nuclear Information System (INIS)

    Objective: To develop a kit for the preparation of a new myocardial perfusion imaging agent, 99TcmN-MIBI, and to create the criteria of quality control for the kit. Methods: The optimal content of the bases were determined by the condition experiments. The methods for testing transparence, pH, asepsis and toxicity were referred to the CHINA PHARMACOPOEIA (edited in 1995). the stability of the kit was estimated by the appearance, the content of the bases and the labelling yield of the complex under different conditions at different times. Results: The test results of the transparence, pH, asepsis and toxicity demonstrated the characteristics of the kit were up to the standard and the stability of the kit was good. The labelling yield of the complex 99TcmN-MIBI prepared by the kit was more than 95%. Conclusions: The preparation of 99TcmN-MIBI with the kit is reliable, practical and easy to perform with excellent quality control. The complex is qualified for clinical use

  20. Use of subepithelial conjunctive tissue graft in root covering

    Directory of Open Access Journals (Sweden)

    Denis Clemente Rodrigues

    2010-04-01

    Full Text Available Gingival recession may cause cosmetic changes and root hypersensitivity, which can alter mastication and tooth brushing, and thus contribute to the progression of periodontal disease. Treatment of gingival recessions with subepithelial conjunctive tissue grafting is very predictable due to its bilaminar nature. However, some factors may influence the success of the procedure, among them: selection of the lesion; characteristics of the defect with regard to the depth and width of the recession, the deeper and wider the recession, the worse the prognosis, and also the presence of restorations. Furthermore, it is necessary to control the etiologic factors of recessions, such as inflammation and traumatic brushing, control of systemic factors, occlusal trauma, smoking and harmful habits, technical considerations and asepsis. The success of the procedure must be based on observing the possible factors that might influence their predictability, as well as respecting the basic principles of mucogingival surgery.

  1. History of mastectomy before and after Halsted.

    Science.gov (United States)

    Ghossain, Antoine; Ghossain, Michel A

    2009-01-01

    The operation described by Halsted, in 1894 and called radical mastectomy, represents a milestone in the treatment of breast cancer. It consisted of removal of the breast, muscles and axillary lymph nodes. The pre-Halsted era saw attitudes ranging from the willful abstention to brutal treatments by cauterization or amputation. The introduction of anesthesia and asepsis enabled more advanced surgical attempts. The stratification of patients into operable and nonoperable categories has improved surgical outcome. After attempts to extend Halsted procedure (by extended or super-radical mastectomies) proved to be of little benefit, a minimally-invasive trend emerged gradually. It started with modified radical mastectomy that spares the muscles and was then followed by breast conservative surgery that leaves breast tissue behind. Then sentinel lymph node mapping was introduced with the hope of reducing the extent of axillary dissection. Finally, skin sparing mastectomy appeared in order to conserve skin and facilitate breast reconstruction. PMID:19623880

  2. Standard guidelines for setting up a dermatosurgery theatre

    Directory of Open Access Journals (Sweden)

    Rajendran S

    2009-08-01

    Full Text Available Introduction, definition, rationale and scope: Dermatologists in India are now increasingly performing surgical and cosmetic procedures in their practice. This calls for minimum standards at the national level with the main focus of patient safety and hence the guidelines for setting up a dermatosurgical theatre. Facility: The dermatosurgery theatre can be created in either physician′s clinic, or a hospital depending on the procedure to be performed. The dermatosurgery theatre requires careful planning with regards to - location, dimension, shell design, lighting, electrical requirements, operation table, chair, trolley, surgical instruments, sterilization of devices, asepsis and advanced life support. Apart from physical considerations, other considerations including theatre etiquettes, consent for surgery, safety of dermatosurgeon, theatre staff and lastly biomedical waste management should be looked into. These issues are discussed in detail in the recommendations.

  3. An outbreak of post-operative endophthalmitis in Lampang Hospital.

    Science.gov (United States)

    Pitaksiripan, S; Butpongsapan, S; Pravithayakarn, L; Tippayadarapanich, D

    1995-07-01

    An outbreak of post-operative endophthalmitis involving 48 patients from October 1991 to October 1992 in Lampang Hospital was reported. There were 3 waves of clustered cases, i.e. from October 1991 to January 1992, April-June 1992, and August-October 1992. Investigation revealed several risk factors: defects in sterilization of surgical instruments, poor operating room hygiene, contaminated tap water and the use of multiple-dose fluids and medication. Bacteria isolated from vitreous fluid showed different bacteria, indicating multiple sources of infection or failure of asepsis. Each episode of infection was brought under control by removing the risk factors and emphasis on aseptic techniques. The value of an effective survey programme for the detection of post-operative endophthatmitis was emphasized. PMID:7561604

  4. Aseptic technique in microgravity.

    Science.gov (United States)

    McCuaig, K

    1992-11-01

    Within the next decade, the United States will launch a space station into low Earth orbit as a preliminary step toward a manned mission to Mars. Provision of asepsis in the unique microgravity environment, essential in operative and invasive procedures, is addressed. An assessment of conventional terrestrial aseptic methods and possible modifications for a microgravity environment was done during the microgravity portion of parabolic flight on NASA KC-135 aircraft. During 110 parabolas on three flight days, a "surgical team" (surgeon, scrub nurse and circulating nurse) using a life size mannequin fastened to a prototype surgical "work station" (operating table), evaluated open and closed gloving (ten parabolas), skin preparation (six parabolas), surgical scrub methods (24 parabolas), gowning (22 parabolas) and draping (48 parabolas). Evaluated were povidone iodine solution, 1 percent povidone iodine detergent, Chloroxylenol with detergent, wet prep soap sponge, a water insoluble iodophor polymer (DuraPrep, 3M), disposable towels, disposable and reusable gowns, large and small disposable drapes with and without adhesive edges, disposable latex surgeon's gloves with and without packaging modifications and restraint mechanisms (tether, swiss seat, waist and foot restraint devices, fairfield and wire clamps and clips). Ease of use, provision of restraint for supplies and personnel and waste disposal were assessed. The literature was reviewed and its relevance to the space environment discussed, including risk factors, environmental contamination, immune status and microbiology. The microgravity environment, limited water supply and restricted operating area mandated that modifications of fabrication and packaging of supplies and technique be made to create and preserve asepsis. Material must meet stringent flammability and off-gassing standards. Either a chlorhexidine or povidone iodine detergent prepackaged brush and sponge would provide an adequate scrub plus

  5. A Study to Assess the Association of Aseptic Practices Being Followed and its Effect on the Overall Outcome of Selected Special Care Newborn Units (SCNUs of Madhya Pradesh at Different Levels.

    Directory of Open Access Journals (Sweden)

    Mahore RK

    2015-04-01

    Full Text Available The neonatal mortality rate in India is high and stagnant. Special Care Newborn Units (SCNUs have been set up at different levels of Health Care Delivery System to provide quality newborn-care services in several hospitals to meet this challenge. Many units are located in the districts where the burden of neonatal deaths is high, and access to special newborn care is poor. The study was conducted to assess the functioning of SCNUs in six centers of India. The evaluation was based on an analysis of secondary data from the six units that had been functioning for at least three year. A cross-sectional survey was also conducted to assess the availability of Quality care and Aseptic practices implemented at different levels of SNCUs. Descriptive statistics were used for analyzing the inputs (Quality care and aseptic practices and outcomes (morbidity and mortality. The rate of mortality among admitted neonates was taken as the key outcome variable to assess the performance of the units. Chi-square test was used for analyzing the trend of case-fatality rate over a period of 3 years considering the first year of operationalization as the base. Correlation coefficients were estimated to understand the possible association of case-fatality rate with factors, such as bed:doctor ratio, bed:nurse ratio, average duration of stay, and bed occupancy rate, and the asepsis score was determined. The rates of admission increased from a median of 16.7 per 100 deliveries in 2012 to 19.5 per 100 deliveries in 2014. The case-fatality rate shows progressive decline in all the units in Last 3 years. Proportional mortality due to sepsis and low birthweight (LBW declined significantly over two years (LBW <2.5 kg. The major reasons for admission and the major causes of deaths were birth asphyxia, sepsis, and LBW/prematurity. The units had a varying nurse:bed ratio (1:1-1:2.14. The bed occupancy rate ranged from 83% to 121% (median 115%, and the average duration of stay

  6. Five millennia of wound care products--what is new? A literature review.

    Science.gov (United States)

    Mouës, Chantal M; Heule, Freerk; Legerstee, Ron; Hovius, Steven E R

    2009-03-01

    The first wound an wound treatments were described five millennia ago. Since then, various principles of wound care have been passed on from generation to generation. In contrast to large numbers of general technological inventions over the last 100 years, progress beyond ancient wound care practices is a recent phenomenon. It is essential to know the historical aspects of wound treatment (both successes and failures) in order to continue this progress and provide future direction. A survey of the literature shows that concepts such as "laudable pus" persisted for hundreds of years and that lasting discoveries and meaningful progress did not occur until grand-scale manufacturing and marketing started. Landmarks such as understanding the principles of asepsis/antisepsis, fundamental cellular research findings, knowledge about antibiotics/antimicrobials, moist wound healing, and the chemical and physical processes of wound healing have provided the foundation to guide major developments in wound management, including available evidence-based guidelines. Although research regarding interaction of basic wound management principles remains limited, the combined efforts of global research and clinical groups predict a bright future for improved wound management. PMID:19359707

  7. Factors affecting wound complications in head and neck surgery: A prospective study

    Directory of Open Access Journals (Sweden)

    Devendra A Chaukar

    2013-01-01

    Full Text Available Context: Head and neck surgeries are complex. Wound complications are associated with considerable morbidity and can result in delay in the adjuvant treatment. Identification of factors will help in formulating preventive guidelines. Aims: The aim of this study is to identify perioperative factors responsible for wound complications. Settings and Design: Prospective study of 186 head and neck patients. Subjects and Methods: Pre-operative, intraoperative and post-operative factors were recorded. Each patient was evaluated for minor and major wound complications twice daily during the hospital stay. Statistical Analysis: Chi-square test was used for univariate and log regression test was used for multivariate analysis. Results: The overall wound complication rate was 29% with 7% major and 22% minor complications. On univariate analysis, laryngeal and hypopharyngeal location, advanced T stage, poor oral hygiene, clean-contaminated surgery, low Karnofsky performance status (KPS, flap reconstruction, blood loss more than 1000 ml, perioperative blood transfusion, duration of surgery greater than 4.3 h and post-operative hemoglobin lesser than 11 g%, post-operative tracheostomy and resection of mandible were statistical significant factors. On multivariate analysis, post-operative tracheostomy, low KPS, post-operative serum albumin less than 3.7 g/dl and duration of surgery greater than 4.3 h were significant factors. Conclusion : Apart from unavoidable factors, it is essential to take care of certain factors viz nutrition, haemoglobin, oral hygiene, asepsis and repeating antibiotics in prolonged surgery.

  8. [Painting realism and medicine: the two surgical clinics of Thomas Eakins].

    Science.gov (United States)

    Cabello, Felipe

    2015-06-01

    Realism is a painting style that began with Millet and Courbet in politically convulsed France in the middle of the nineteenth century. In the second half of that century, the pragmatic and democratic tradition of the United States fostered the careers of many realist painters, including that of Thomas Eakins. Eakins, trained in France, developed his career completely associated with Philadelphia at a time when this city was in the vanguard of American emerging industry, culture and medicine. Eakins "The clinic of Dr. Gross" and the "The clinic of Dr. Agnew" are icons of these developments and symbolize a perfect union of art and medicine. Both paintings permit the viewer to appreciate the artist's mastery, originality and Americanism while simultaneously tracking the progress of surgery as evidenced by the introduction of asepsis, anesthesia and nursing. Eakins mastery is revealed by its use of some European Old Masters approaches to portray medical professionals undertaking their daily duties in their work environments with critical and unadorned vision. This combination of vision and skills led Eakins to create a highly original yet analytical art. Unfortunately, his representations were far ahead of his time and resulted in under appreciation of his paintings and a censorious reaction to their content. His contemporaries rejection of Eakins work negatively affected his career as a painter, as a teacher and even his private life. This judgment was overturned in subsequent years and by the twentieth century Eakins was recognized as an American master without parallel. PMID:26230562

  9. Antoni Christian Bryk (1820-1881) - professor of forensic medicine at Jagiellonian University (1852-1860), and director of the surgical clinic of Jagiellonian University in Cracow (1860-1881).

    Science.gov (United States)

    Zajączkowski, Tadeusz

    2014-01-01

    scientific discipline. In the 19th century two milestones revolutionised surgery: the development of narcosis, which enabled painless surgery, and the introduction of antisepsis and asepsis. The author presents the beginnings of academic surgery in Cracow. Its pioneer surgeons are presented. Extensive research was undertaken to collect the literature and documents in Polish, Austrian and German archives and libraries in order to prepare this study. Biographical details of the director of the Surgical Clinic, Prof. Antoni Bryk, are provided. He was the first person in Poland to introduce antisepsis and galvanocautery as routine procedures in the Cracow Clinic. The introduction of antisepsis contributed to a reduction in infection during surgery, and a reduction in postoperative mortality in Cracow Surgical Clinic. In this way Professor Bryk became the first Polish surgeon to apply Lister's antiseptic method in the treatment of wounds. Thus enlarged, the scope of surgery for intracranial, bone and other procedures became routine. Surgery is the oldest discipline in medicine. Poland's first university chair of surgery was established in the 18th century. Surgery, which until then had been the domain of barbers and bath house attendants, became a clinical, PMID:25518102

  10. The discuss on quality control methods of culture medium for thermotolerant coliform bacteria%检测耐热大肠菌群培养基的质量控制方法探讨

    Institute of Scientific and Technical Information of China (English)

    钟宁

    2012-01-01

      The quality of culture medium is the foundation of the microbial detection, affecting directly the reliability of the test results. In this paper, combining with the actual situation, the discuss on quality control of the EC culture medium for thermotolerant coliform bacteria was carried out through the outside,pH value, asepsis check, sensitivity check and others aspects so as to microbiology laboratory perfect and improve continuously culture medium quality level , and to ensure the accuracy of the test results.%  培养基的质量是微生物检测工作的基础,直接影响检测结果的可靠性。本文结合实际情况,从外观、pH值、无菌检查及灵敏度检查等几个方面,对检测耐热大肠菌群所用EC培养基的质量控制进行讨论,以便微生物实验室不断完善和提高培养基的质控水平,从而保证检验结果的准确性。

  11. The rate of glove perforations in orthopaedic procedures: single versus double gloving. A prospective study.

    Science.gov (United States)

    Chan, K Y; Singh, V A; Oun, B H; To, B H Se

    2006-12-01

    Glove perforation during surgery has always been a matter of concern as it increases the infection rate and the risk of transmission of blood borne diseases. To determine the common causes, the site and the awareness of glove perforations in orthopaedic surgery, a prospective study was conducted to assess the rate of glove perforation during 130 consecutive orthopaedic operations. All gloves worn by the surgical team were assessed after the surgery using the water-loading test. A total of 1452 gloves were tested, and the rate of perforation was 3.58%. Most of these perforations (61.5%) were unnoticed. The main surgeons had the most perforations (76.9%), followed by first assistants (13.5%) and second assistants (9.6%). Most perforations occurred at the non-dominant hand. The commonest site of perforation was the index finger followed by the thumb. Shearing force with instruments accounted for 45% of the noticed perforations. Majority of these occurred during nailing procedures (33%) and internal fixation without the use of wires (19%). Our rate of glove perforation is similar to other series. Most of them went unnoticed and were mainly due to shearing injuries rather than perforation by sharps. Therefore, there is an increased risk of contamination and break in asepsis during surgery. PMID:17605178

  12. [Not Available].

    Science.gov (United States)

    Siah, S; Baite, A; Bakkali, H; Atmani, M; Ababou, K; Ihrai, H

    2009-09-30

    Le syndrome de Lyell ou nécrolyse épidermique toxique (NET) est une pathologie très grave des dermatoses bulleuses d'étiologie médicamenteuse. Il se caractérise par une nécrose aiguë de l'épiderme sur toute la hauteur du corps muqueux. L'aspect clinique de la NET est celui d'une brûlure étendue du deuxième degré profond. A ce tableau s'associent constamment des lésions muqueuses et une atteinte multiviscérale qui aggrave le pronostic. Nous rapportons deux cas de NET qui illustrent l'importance d'une prise en charge précoce et multidisciplinaire de ces patients atteints au sein d'un service de réanimation des brûlés, dont les fondements reposent sur l'asepsie rigoureuse, l'apport hydroélectrolytique et nutritionnel, la prévention de l'infection et son traitement par une antibiothérapie adaptée, et un nursing et des soins locaux. L'efficacité supposée des immunoglobulines intraveineuses ne repose que sur des cas isolés et il n'y a pas encore d'études randomisées. PMID:21991170

  13. Peritoneal dialysis peritonitis: risk factors and effects

    Directory of Open Access Journals (Sweden)

    Alikari V.

    2013-07-01

    Full Text Available Introduction: Peritonitis is the most frequent complication of peritoneal dialysis. It is the main cause of failure of the method and inclusion of patients in hemodialysis Purpose: The purpose of this study is to explore the risk factors of peritoneal dialysis peritonitis as well as the acute and long-term effects of peritonitis on peritoneal membrane function and success of the method. Methods: Literature review of relevant articles in the database Pubmed as well as the official website of the International Society of Peritoneal Dialysis (ISPD was carried out. The search included articles published during the period 1986 -2012.Results: Lack of patient compliance with the peritoneal changes protocol, lack of social support, systemic diseases and connection systems are risk factors of peritonitis. Peritonitis causes transient increase of peritoneum permeability, loss of the ability of the peritoneum for ultrafiltration and, consequently, overhydration. Long-term, recurrent episodes of peritonitis resulting in permanent loss of peritoneum capacity for ultrafiltration even fibrosis that leads to failure of the method. Finally, its effect on the reduction of the residual renal function seems to be remarkable. Conclusions: Peritonitis is the most common infectious complication of peritoneal dialysis and the main cause of morbidity associated with the method. Moreover, it is the major cause of failure of the method and patients accession in hemodialysis. Any attempt to prevent peritonitis passes through the careful patient selection and effective patient education on compliance with the rules of asepsis during peritoneal changes.

  14. Enhancing the corrosion resistance of dentistry drills by plasma immersion nitrogen in implantation of AISI 434-based SS

    International Nuclear Information System (INIS)

    In order to enhance the resistance to the pitting corrosion due to asepsis processes and to avoid structural fractures in dentistry drills, a plasma immersion ion implantation (PIII) treatment using nitrogen has been performed. The selected drill samples, made of AISI 434 based stainless steel with a 0.670 mm diameter, were treated at a -1kV bias between 350 C and 450 C, this temperature being controlled by both a 20-50 μs pulse width and a 200-1000 Hz repetition rate in the bias. The drills were analysed by cyclic potentiodynamic tests showing a good pitting corrosion resistance when treated at around 400 C, as follows from a resulting very low hysteresis loop. Yet, the resistance appears somehow diminished by the presence of sputtering when processed at temperatures near 450 C. It is also found that the PIII nitriding effectiveness appears to be limited by the appearance of uniform corrosion. Finally, X-ray diffraction of the samples has revealed the presence of two new phases, namely ε-Fe2N and Fe4.4N, while scanning electron microscopy of the treated surfaces has suggested a sputtering enhancement at the highest temperatures. (Author)

  15. Applications of Midwives and Nurses Working at Pediatrics Clinics to Patients Security

    Directory of Open Access Journals (Sweden)

    Fatma Tas Arslan

    2014-06-01

    RESULT: The research 77.9% of them work as a nurse and %66.1 of them obtain information about patient security. In the applications to the patient security, and ldquo;I give the patients arm band and rdquo; constitutes 54. 1,% and ldquo;I have the concerned doctor sign the oral order form in 24 hours at the latest after it is filled and rdquo; constitutes 73.8%, and ldquo; I evaluate the patients in view of the risk of falling down and rdquo; constitutes 86.1%, and ldquo; I pay attention to asepsis in all invasive attempts and rdquo; constitutes 91% are among the regular ones. It was found out that among the nurses and midwives, 19 out of 103 made medical error during a year. CONCLUSiON: it has been achieved that nurses and midwives have different roles and pay attention to preventing the patients from falling down, providing the communication security, providing the infection security, providing the medicine security. It is thought that they should be supported in respect to identifying and confirming the patients ID [TAF Prev Med Bull 2014; 13(3.000: 209-216

  16. Musculoskeletal interventional radiology: ultrasound and CT.

    Science.gov (United States)

    Martel Villagrán, J; Bueno Horcajadas, Á; Agrela Rojas, E

    2016-05-01

    We aim to describe imaging-guided (ultrasound and CT) interventional techniques in the musculoskeletal system that can be performed by general radiologists, whether in hospitals, primary care clinics, private offices, or other settings. The first requirement for doing these procedures is adequate knowledge of the anatomy of the musculoskeletal system. The second requirement is to inform the patient thoroughly about the technique, the risks involved, and the alternatives available in order to obtain written informed consent. The third requirement is to ensure that the procedure is performed in accordance with the principles of asepsis in relation to the puncture zone and to all the material employed throughout the procedure. The main procedures that can be done under ultrasound guidance are the following: fine needle aspiration cytology (FNAC), core needle biopsy (CNB), diagnostic and/or therapeutic arthrocentesis, drainage of juxta-articular fluid collections, drainage of abscesses, drainage of hematomas, treatment of Baker's cyst, treatment of ganglia, treatment of bursitis, infiltrations and treatment of plantar fasciitis, plantar fibrosis, epicondylitis, Achilles tendinopathy, and Morton's neuroma, puncture and lavage of calcifications in calcifying tendinopathy. We also review the following CT-guided procedures: diagnosis of spondylodiscitis, FNAC of metastases, arthrography, drainages. Finally, we also mention more complex procedures that can only be done in appropriate settings: bone biopsies, treatment of facet joint pain, radiofrequency treatment. PMID:27134018

  17. Modern pacemaker therapy

    Directory of Open Access Journals (Sweden)

    Mijatov Milan

    2010-01-01

    Full Text Available Introduction. Pacemakers are devices that modern medicine and cardiology cannot be imagined without. The technique of implantation comes to surgical procedure where all principles of asepsis and antisepsis have to be respected. Although some complications do happen, they are rather rare. Results. After the implantation of the device, the patient is not handicapped (unless the heart was additionally damaged. On the contrary, the patient returns to his work and functions normally within his family in most of the cases. The first medical appointment is scheduled a month after the implantation and the following are three and six months after. Types of devices. Today there are „new types of electrostimulation”- implantable cardioverter defibrillators and multisite electrostimulators. The former is implanted in patients at high risk of sudden cardiac death and the latter in patients with heart failure and left bundle branch block. Owing to these devices, the sudden cardiac death can be prevented successfully and the quality of a patient’s life is improved.

  18. [Prophylactic antibiotics in neurosurgery].

    Science.gov (United States)

    Iacob, G; Iacob, Simona; Cojocaru, Inimioara

    2007-01-01

    Because of a low risk of infection (around 2-3%), prophylactic use of antibiotics in neurosurgery is a controversial issue. Some neurosurgeons consider that there are strong arguments against the use of antimicrobials (promotion of antibiotic-resistant strains of bacteria, superinfection and adverse drug reactions) and meticulous aseptic techniques could be more usefully than prophylactic antibiotics. On the other hand, despite of being rare, the consequences of a neurosurgical infection can be dramatic and may result in a rapid death, caused by meningitis, cerebritis, abscess formation or sepsis. Clinical studies emphasized that the most important factors influencing the choice of antibiotic prophylaxis in neurosurgery is the patient's immune status, virulence of the pathogens and the type of surgery ("clean contaminated"--procedure that crosses the cranial sinuses, "clean non-implant"--procedure that does not cross the cranial sinuses, CSF shunt surgery, skull fracture). Prophylaxis has become the standard of care for contaminated and clean-contaminated surgery, also for surgery involving insertion of artificial devices. The antibiotic (first/second generation of cephalosporins or vancomycin in allergic patients) should recover only the cutaneous possibly contaminating flora (S. aureus, S. epidermidis) and should be administrated 30' before the surgical incision, intravenously in a single dose. Most studies pointed that identification of the risk factors for infections, correct asepsis and minimal prophylactic antibiotic regimen, help neurosurgeons to improve patient care and to decrease mortality without selecting resistant bacteria. PMID:18293694

  19. In vitro antifungal action of different substances over microwaved-cured acrylic resins

    Directory of Open Access Journals (Sweden)

    Henrique Montagner

    2009-10-01

    Full Text Available OBJECTIVE: The presence of Candida albicans on the surfaces of denture-base acrylic resins is strongly related to the development of oral stomatitis. This study evaluated the antifungal action of different agents over microwave-cured acrylic resin without polishing specimens previously contaminated with Candida albicans. MATERIAL AND METHODS: Sixty specimens were immersed in BHI broth previously inoculated with the yeast and stored for 3 h at 37ºC. They were divided into 5 experimental groups (n=10: G1: 2% chlorhexidine solution (10 min; G2: 0.5% sodium hypochlorite (10 min; G3: modified sodium hypochlorite (10 min; G4: effervescent agent (5 min; G5: hydrogen peroxide 10v (30 min. The specimens of the control group 1 (C1 were not disinfected. Ten additional specimens of the control group 2 (C2 were not infected with the yeast, aiming to check the asepsis during the experiment. The disinfection agents were neutralized and the acrylic resin specimens were immersed in BHI Broth for 24 h. Culture media turbidity was evaluated spectrophotometrically according to the transmittance degree, i.e. the higher the transmittance the stronger the antimicrobial action. Statistical analysis was performed (Kruskal-Wallis Test, p<0.05. RESULTS: The results, represented by the medians, were: G1 = 40; G2 = 100; G3 = 100; G4 = 90; G5 = 100; C1 = 40; C2 = 100. CONCLUSIONS: This in vitro study suggested that sodium hypochlorite-based substances and hydrogen peroxide are more efficient disinfectants against C. albicans than 2% chlorhexidine solution and the effervescent agent.

  20. Hastane Temizlik Hizmetleri Personelinin Tibbi Atiklarin Toplanmasi, Tasinmasi ve Depolanmasi Ile Ilgili Bilgi ve Uygulamalarinin Belirlenmesi

    Directory of Open Access Journals (Sweden)

    Esengul Camozu

    2011-12-01

    Full Text Available Determination of Hospital Cleaning Staff’s Knowledge and Applications About Collecting, Transferring and Stocking of Medical Wastes AIM:This observational descriptive study carried out to identify cleaning staffs’ knowledge and practices about collection, transportation and storage of medical waste, at GATA Education and Research Hospital METHOD: All of 99 staffs were included in the study, Data was collected by questionnaire and observation forms. Observation form consists of 5 chapters and 36 processes created in order to observing staff’s practices and use private preventive equipments during the practices. Participants were observed twice with at least 15-day interval and then a questionnaire was administered. Written consent was obtained from staffs by informing about research before applying questionnaire. The data were analyzed by using SPSS 12 package program. RESULTS: 93 persons had been vaccinated against to HepB and 35 persons had been vaccinated against to tetanus among 99 persons were participated in study. 36 persons stated had been injured at least one time by cutting, or drilling materials. Wearing gloves were the most common private prevention (but about half of them was disposable and other private preventive materials were using less. Observed that most of the participants were carrying waste with their hands and clothes were kept in inconvenient place and washing hands, gloves and container after procedures were leaved out. Also some of participants neglected to put leaky pocket in a substantial one. CONCLUSION: Training of cleaning staffs about collect, transport and storage of medical waste relevance to fundamentals of medical asepsis also using visual stimulants and checking staff’s practices for enhancement of correct applications were suggested. [TAF Prev Med Bull 2011; 10(6.000: 631-640

  1. Infections following the application of leeches: two case reports and review of the literature

    Directory of Open Access Journals (Sweden)

    Maetz Benjamin

    2012-10-01

    Full Text Available Abstract Introduction Since the 1980s, leeches have been ingeniously used in the management of venous flap congestion. The presence of anticoagulative substances in their saliva improves the blood drainage. Their digestive tract contains several bacterial species, the main ones being Aeromonas hydrophila and Aeromonas veronii biovar sobria, which contribute to the digestion of ingested blood. These bacteria can be the cause of infections. Case presentation We report two cases of septicemia related to Aeromonas veronii biovar sobria that presented after leeches had been applied to congested transverse rectus abdominis myocutaneous flaps for delayed mammary reconstructions. Patient number 1 was a 55-year-old Caucasian woman who underwent a delayed breast reconstruction procedure. On the sixth postoperative day she showed a clinical presentation of septicemia. Aeromonas veronii biovar sobria was identified in the patient’s skin and blood bacteriological samples. Her fever ceased after 4 days of antibiotic treatment. Patient number 2 was a 56-year-old Caucasian woman who underwent a delayed breast reconstruction procedure. On the seventh postoperative day we noticed that she showed a clinical presentation of septicemia. Aeromonas veronii biovar sobria was identified in the patient’s blood cultures and local bacteriological samples. An antibiogram showed resistance to amoxicillin/clavulanic acid. Her fever ceased on the eleventh postoperative day after 4 days of antibiotic treatment. Conclusion The rate of infection after application of leeches is not negligible. The concentration of Aeromonas inside the digestive tracts of leeches largely decreases when the patient is under antibiotic therapy. These germs are sensitive to third-generation cephalosporins and fluoroquinolones and resistant to amoxicillin/clavulanic acid. We recommend preventive treatment based on classical measures of asepsis and on oral antibioprophylaxy with a fluoroquinolone

  2. Cosmetic outcome and surgical site infection rates of antibacterial absorbable (Polyglactin 910) suture compared to Chinese silk suture in breast cancer surgery: a randomized pilot research

    Institute of Scientific and Technical Information of China (English)

    ZHANG Zhong-tao; Jessica Shen; Martin Weisberg; ZHANG Hong-wei; FANG Xue-dong; WANG Li-ming; LI Xiao-xi; LI Ya-fen; SUN Xiao-wei; Judith Carver; Dorella Simpkins

    2011-01-01

    Background The primary objective of this multicenter post-market study was to compare the cosmetic outcome of triclosan-coated VICRYL* Plus sutures with Chinese silk sutures for skin closure of modified radical mastectomy. A secondary objective was to assess the incidence of surgical site infection (SSI).Methods Patients undergoing modified radical mastectomy were randomly assigned to coated VICRYL* Plus antibacterial (Polyglactin 910) suture or Chinese silk suture. Cosmetic outcomes were evaluated postoperatively at days 12 (±2) and 30 (±5), and the evidence of SSI was assessed at days 3, 5, 7, 12 (±2), 30 (±5), and 90 (±7). Cosmetic outcomes were independently assessed via visual analogue scale (VAS) score evaluations of blinded incision photographs (primary endpoint) and surgeon-assessed modified Hollander Scale (mHCS) scores (secondary endpoint).SSI assessments used both CDC criteria and ASEPSIS scores.Results Six Chinese hospitals randomized 101 women undergoing modified radical mastectomy to closure with coated VICRYL* Plus suture (n=51) or Chinese silk suture (n=50). Mean VAS cosmetic outcome scores for antibacterial suture (67.2) were better than for Chinese silk (45.4) at day 30 (P<0.0001)). Mean mHCS cosmetic outcome total scores, were also higher for antibacterial suture (5.7) than for Chinese silk (5.0) at day 30 (P=0.002).Conclusions Patients using coated VICRYL* Plus suture had significantly better cosmetic outcomes than those with Chinese silk sutures. Patients using coated VICRYL* Plus suture had a lower SSI incidence compared to the Chinese silk sutures, although the difference did not reach statistical significance. (ClinicalTrials.gov NCT 00768222)

  3. Buccal Epithelium in treating Ocular Surface Disorders

    Directory of Open Access Journals (Sweden)

    Srinivas KR

    2008-11-01

    Full Text Available Background - Ocular surface disorders due to limbal stem cell deficiency are an important cause of ocular morbidity and visual loss. Although autologous limbal stem cell transplants have helped in the management of unilateral disease, allografts in those with bilateral disease often fail due to immunological reasons. The use of autologous buccal epithelium cultivated on amniotic membrane has been described as a useful approach in the management of this condition. It is the purpose of this study to explore the feasibility of using a novel thermo-gelatin polymer (TGP as a substrate to culture these cells, and to characterize them using RNA extraction and RT-PCR. Methods - Oral cheek mucosal biopsies were obtained from 5 adult patients undergoing Modified Osteo-Odonto Keratoprosthesis surgery. The specimens were transported to the laboratory in transport medium. The cells were released using enzymatic digestion and seeded in both convention culture medium and TGP. The resulting cellular growth was characterized using RNA extraction and RT-PCR. Results - Cells could be cultured from 4 of the 5 specimens. In one specimen, contamination occurred and this was discarded. In the other specimens, the cheek epithelial cells could be cultured in both the conventional culture medium and TGP, with equal ease. RT-PCR revealed the presence of K3, a marker for epithelial cells, and GAPDH indicating the presence of some adipose tissue as well. Conclusions - It is possible to culture autologous cheek mucosal epithelial cells using TGP, a synthetic scaffold, without the need for other biological substrates. Since the specimens are obtained from the oral cavity, stringent asepsis is required. Further studies are required for histopathological characterization of the cultured cells and to create a model for delivery onto the ocular surface of eyes with bilateral surface disease due to limbal stem cell deficiency.

  4. Direct hair transplantation: A modified follicular unit extraction technique

    Directory of Open Access Journals (Sweden)

    Pradeep Sethi

    2013-01-01

    Full Text Available Background: In hair transplantation, the survival rate of harvested grafts depends upon many factors like maintenance of hydration, cold temperature, reduced mechanical handling and asepsis. All these factors are favourably improved if time out of body is reduced significantly. We have tried a modification called direct hair transplantation in the existing follicular unit extraction technique, in which the follicular unit grafts are implanted as soon as they are harvested. In this article, we have described the detailed methodology and a series of 29 patients who underwent direct hair transplantation. Aim: To evaluate the efficacy and feasibility of direct hair transplantation. Subjects and Methods: The patients willing to undergo hair transplantation by the technique of follicular unit extraction were enrolled for the surgery. After administration of local anaesthesia, the recipient sites were created. Thereafter, the processes of scoring the skin with a motorized punch, graft extraction and implantation were performed simultaneously. These patients were followed up to look for the time period of initiation of hair growth, the growth achieved at the end of 6-8 months and any adverse events. The results of patients with noticeable improvement in the photographs and reduction in baldness grade were taken as ′good′, whereas, in other patients, it was classified as ′poor′. Results: All patients were males with age ranging from 21 to 66 years (median 30 years. Twenty-six patients had androgenetic alopecia, 1 patient had traction alopecia and 2 patients had scarring alopecia. Twenty-seven patients showed ′good′ results, whereas 2 patients showed ′poor′ results. Conclusion: Direct hair transplantation is a simple and feasible modification in the follicular unit extraction technique. It is an efficacious surgical treatment modality for baldness.

  5. Cross-contamination in dentistry: A comprehensive overview

    Directory of Open Access Journals (Sweden)

    Sagar J Abichandani

    2013-01-01

    Full Text Available Introduction: Cross-contamination and cross-infection can occur by direct contact with micro-organisms, indirect contact with contaminated objects, droplet transmission, and inhalation of airborne pathogens. In dentistry, operatory surfaces can routinely become contaminated with patient saliva, blood, and other fluids during treatment. Aims and Objectives: This review is aimed to identify cross-contamination and spread of infection by various means and the appropriate preventive measures to be implemented. This review will also highlight the various aspects that are neglected in various dental schools/dental practice or any dental set up that potentiate cross-contamination ultimately affecting the dentist, dental team and the patients. Materials and Methods: A review of the dental literature concerning cross-contamination was performed. Material appearing in the literature before 1996 was reviewed as exhaustively as possible and materials after 1996 were reviewed electronically. In Medline, key words like cross-contamination, sterilization, asepsis, infection, infection control, prevention were used in various combinations to obtain a potential reference for review. A total of 2245 English Language titles were found, many were repeated due to recurring searches. The headings were shortlisted and reviewed for detailed examination. Results: A comprehensive review to evaluate the methods of preventing cross-contamination in dentistry involving various aspects and challenges encountered in a dental set up was constructed which was missing in the references of the review. Conclusions: Awareness and the necessary precautions play a pivotal role in preventing the occurrence of cross-contamination. It is the responsibility of the entire dental team to work in unison to prevent the menace of cross-contamination and spread of infection.

  6. Tissue Culture and Rapid Propagation of Chionanthus retusus%流苏树的组织培养和快速繁殖

    Institute of Scientific and Technical Information of China (English)

    王鑫; 孔祥生

    2014-01-01

    以流苏树种胚为试材,研究不同种类及浓度的植物生长调节剂对其无菌体系建立,带顶、侧芽茎段伸长以及生根的影响。结果表明,种胚生根最适培养基为WPM+0.1 mg∙L-1 NAA+3.0 mg∙L-1 GA3+2.0 mg∙L-16-BA,生根率为94.2%;带顶、侧芽茎段最适培养基为WPM+1.0 mg∙L-1 GA3+1.0 mg∙L-16-BA+0.5 mg∙L-1 TDZ;生根最适培养基为WPM+0.1 mg∙L-16-BA+0.5 mg∙L-1 NAA+0.5 mg∙L-1 IBA。%Using the embryo of Chionanthus retusus as the material, the effects of different concentrations and combinations of plant growth regulators on asepsis system establishment, stem segment elongation of terminal bud and lateral bud, and rooting were discussed. The results showed that the best embryo rooting medium was WPM+1.0 mg∙L-1 NAA+3.0 mg∙L-1 GA3+2.0 mg∙L-1 6-BA, the rooting rate was 94.2%, the best medium for ter-minal and laterd bud was WPM+1.0 mg∙L-1 GA3+1.0 mg∙L-1 6-BA+0.5 mg∙L-1 TDZ, and the best rooting medi-um was WPM+0.1 mg∙L-1 6-BA+0.5 mg∙L-1 NAA+0.5 mg∙L-1 IBA.

  7. A comparative study of epidural catheter colonization and infection in Intensive Care Unit and wards in a Tertiary Care Public Hospital.

    Science.gov (United States)

    Harde, Minal; Bhadade, Rakesh; Iyer, Hemlata; Jatale, Amol; Tiwatne, Sagar

    2016-02-01

    Infection is a potentially serious complication of epidural analgesia and with an increase in its use in wards there is a necessity to demonstrate its safety. We aimed to compare the incidence of colonization of epidural catheters retained for short duration (for 48 h) postoperative analgesia in postanesthesia care unit and wards. It was a prospective observational study done in a tertiary care teaching public hospital over a period of 2 years and included 400 patients with 200 each belonged to two groups PACU and ward. We also studied epidural tip culture pattern, skin swab culture at the entry point of the catheter, their relation to each other and whether colonization is equivalent to infection. Data were analyzed using statistical software GraphPad. Overall positive tip culture was 6% (24), of them 7% (14) were from PACU and 5% (10) were from ward (P = 0.5285). Positive skin swab culture was 38% (150), of them 20% (80) were from PACU and 18% (70) were from ward (P = 0.3526). The relation between positive tip culture and positive skin swab culture in same patients is extremely significant showing a strong linear relationship (95% confidence interval = 0.1053-0.2289). The most common microorganism isolated was Staphylococcus epidermidis. No patient had signs of local or epidural infection. There is no difference in the incidence of epidural catheter tip culture and skin swab culture of patients from the general ward and PACU. Epidural analgesia can be administered safely for 48 h in general wards without added risk of infection. The presence of positive tip culture is not a predictor of epidural space infection, and colonization is not equivalent to infection; hence, routine culture is not needed. Bacterial migration from the skin along the epidural track is the most common mode of bacterial colonization; hence, strict asepsis is necessary. PMID:27076712

  8. Outcome of percutaneous continuous drainage of psoas abscess: A clinically guided technique

    Directory of Open Access Journals (Sweden)

    Bharat R Dave

    2014-01-01

    Full Text Available Background: Percutaneous aspiration of abscesses under ultrasonography (USG and computer tomography (CT scan has been well described. With recurrence rate reported as high as 66%. The open drainage and percutaneous continuous drainage (PCD has reduced the recurrence rate. The disadvantage of PCD under CT is radiation hazard and problems of asepsis. Hence a technique of clinically guided percutaneous continuous drainage of the psoas abscess without real-time imaging overcomes these problems. We describe clinically guided PCD of psoas abscess and its outcome. Materials and Methods: Twenty-nine patients with dorsolumbar spondylodiscitis without gross neural deficit with psoas abscess of size >5 cm were selected for PCD. It was done as a day care procedure under local anesthesia. Sequentially, aspiration followed by guide pin-guided trocar and catheter insertion was done without image guidance. Culture sensitivity was done and chemotherapy initiated and catheter kept till the drainage was <10 ml for 48 hours. Outcome assessment was done with relief of pain, successful abscess drainage and ODI (Oswestry Disability Index score at 2 years. Results: PCD was successful in all cases. Back and radicular pain improved in all cases. Average procedure time was 24.30 minutes, drain output was 234.40 ml, and the drainage duration was 7.90 days. One patient required surgical stabilisation due to progression of the spondylodiscitis resulting in instability inspite of successful drainage of abscess. Problems with the procedure were noticed in six patients. Multiple attempts ( n = 2, persistent discharge ( n = 1 for 2 weeks, blocked catheter ( n = 2 and catheter pull out ( n = 1 occurred with no effect on the outcome. The average ODI score improved from 62.47 to 5.51 at 2 years. Conclusions: Clinically guided PCD is an efficient, safe and easy procedure in drainage of psoas abscess.

  9. Maternal mortality -- aetiological factors: analytic study from a teaching hospital of Punjab.

    Science.gov (United States)

    Sarin, A R; Singla, P; Kaur, H

    1992-01-01

    A review of maternal deaths at Rajendra Hospital, Punjab, from January 1978 to December 1991 yielded important data for the planning of maternal health services in this area of India, During the 14 year study period, there were 33,160 births and 339 deaths, for a maternal mortality rate of 1002/100,000 live births. Women who had received no prenatal care accounted for 47.4% of deliveries but 92.8% of maternal deaths. In addition, a disproportionate number of deaths involved rural women (74.6%) and poor women (76.4%). 57.8% of maternal deaths involved women 21-30 years of age; 37.1% occurred among primigravidas. Direct obstetrical causes were considered the etiologic factor in 83.1% of these deaths. Primary among these causes were sepsis (37.1%), obstetric hemorrhage (26.2%), hypertensive disorders of pregnancy (21.4%), and obstructed labor (15.3%). 30.6% of deaths occurred during pregnancy, 50.3% during labor, and 19.1% in the postpartum period. Indirect obstetrical causes, notably severe anemia and anesthesia complications, were implicated in 15.3% of the maternal deaths. Critical analysis of the maternal deaths in this series suggested that 89.6% were totally preventable, 9.6% were probably preventable, and only 0.8% were not avoidable. Factors that would reduce the high rate of maternal mortality in this region include more widespread use of prenatal care, training of traditional birth attendants in asepsis, referral of high-risk pregnancies, and improved transportation in rural areas. PMID:12288813

  10. Commercial considerations in tissue engineering.

    Science.gov (United States)

    Mansbridge, Jonathan

    2006-10-01

    Tissue engineering is a field with immense promise. Using the example of an early tissue-engineered skin implant, Dermagraft, factors involved in the successful commercial development of devices of this type are explored. Tissue engineering has to strike a balance between tissue culture, which is a resource-intensive activity, and business considerations that are concerned with minimizing cost and maximizing customer convenience. Bioreactor design takes place in a highly regulated environment, so factors to be incorporated into the concept include not only tissue culture considerations but also matters related to asepsis, scaleup, automation and ease of use by the final customer. Dermagraft is an allogeneic tissue. Stasis preservation, in this case cryopreservation, is essential in allogeneic tissue engineering, allowing sterility testing, inventory control and, in the case of Dermagraft, a cellular stress that may be important for hormesis following implantation. Although the use of allogeneic cells provides advantages in manufacturing under suitable conditions, it raises the spectre of immunological rejection. Such rejection has not been experienced with Dermagraft. Possible reasons for this and the vision of further application of allogeneic tissues are important considerations in future tissue-engineered cellular devices. This review illustrates approaches that indicate some of the criteria that may provide a basis for further developments. Marketing is a further requirement for success, which entails understanding of the mechanism of action of the procedure, and is illustrated for Dermagraft. The success of a tissue-engineered product is dependent on many interacting operations, some discussed here, each of which must be performed simultaneously and well. PMID:17005024

  11. [Measurement of the volume of the skin ulcer in cutaneous leishmaniasis].

    Science.gov (United States)

    Correia, D; Macedo, V; Marsden, P D

    1996-01-01

    Skin ulcers by Leishmania (Viannia) braziliensis are often deep and irregular and are difficult to measure by just the skin surface transverse and longitudinal diameters. The proposal is to mould the cavity, after local asepsis with fresh water plus soap, with a gelatinous plastic which contains silence, potassium alginate, calcium sulphate, magnesium oxide commercialized under the name of jeltrate (Dentsply Laboratory), by solving 9.5g of jeltrate in 20ml of fresh water and applying the gel on the ulcer which solidifies in 5 minutes. This mould is then filled with a self polymerising acrylic and its volume measured either by weight (by using an analytical balance)-technique 1-or by water displacement by applying Archimeds'principle-technique 2. We show data in a field trial before and after 20 days treatment in 20 patients using three different schedules as follows: 7 received pentamidine isethionate, 7 patients received aminosidine sulphate and 6 received meglumine antimoniate. The results point out that there was a uniform reduction of ulcer volume occurred during this period in the three groups, in both technique. Regarding the therapeutic schedules we are sure that there was a significant statistical difference between the three schedules using the T Student Test, which showed that aminostdine sulphate produced a better volume reduction of the ulcer than the other drugs. Serial moulds reflect clinical billing and are a permanent record. We conclude that the measure of the volume of the skin ulceration can be useful in the therapeutic evaluation, as a practical and cheap procedure, and may be used in field trials. PMID:9011886

  12. A comparative study of epidural catheter colonization and infection in Intensive Care Unit and wards in a Tertiary Care Public Hospital

    Directory of Open Access Journals (Sweden)

    Minal Harde

    2016-01-01

    Full Text Available Infection is a potentially serious complication of epidural analgesia and with an increase in its use in wards there is a necessity to demonstrate its safety. We aimed to compare the incidence of colonization of epidural catheters retained for short duration (for 48 h postoperative analgesia in postanesthesia care unit and wards. It was a prospective observational study done in a tertiary care teaching public hospital over a period of 2 years and included 400 patients with 200 each belonged to two groups PACU and ward. We also studied epidural tip culture pattern, skin swab culture at the entry point of the catheter, their relation to each other and whether colonization is equivalent to infection. Data were analyzed using statistical software GraphPad. Overall positive tip culture was 6% (24, of them 7% (14 were from PACU and 5% (10 were from ward (P = 0.5285. Positive skin swab culture was 38% (150, of them 20% (80 were from PACU and 18% (70 were from ward (P = 0.3526. The relation between positive tip culture and positive skin swab culture in same patients is extremely significant showing a strong linear relationship (95% confidence interval = 0.1053–0.2289. The most common microorganism isolated was Staphylococcus epidermidis. No patient had signs of local or epidural infection. There is no difference in the incidence of epidural catheter tip culture and skin swab culture of patients from the general ward and PACU. Epidural analgesia can be administered safely for 48 h in general wards without added risk of infection. The presence of positive tip culture is not a predictor of epidural space infection, and colonization is not equivalent to infection; hence, routine culture is not needed. Bacterial migration from the skin along the epidural track is the most common mode of bacterial colonization; hence, strict asepsis is necessary.

  13. Fototerapia (LEDs 660/890nm no tratamento de úlceras de perna em pacientes diabéticos: estudo de caso Phototherapy (LEDs 660/890nm in the treatment of leg ulcers in diabetic patients: case study

    Directory of Open Access Journals (Sweden)

    Débora Garbin Minatel

    2009-07-01

    Full Text Available Avaliou-se a fototerapia na cicatrização de úlceras de perna (UP mistas em dois pacientes diabéticos (tipo 2, hipertensos. O aparelho apresentava sonda 1 (S1 (1 LED de 660nm, 5mW aplicado em 3 UP e sonda 2 (S2 (32 LEDs de 890nm e 4 LEDs de 660nm, 500mW em 6 UP. Após antissepsia,úlceras foram tratadas com sondas a 3J/cm2, 30seg, 2x/semana seguido pelo curativo diário com sulfadiazina de prata a 1% por 12 semanas. Pela análise com software Image J®, as UP com S2 tiveram índices de cicatrização médios de 0,6; 0,7 e 0,9 enquanto S1 foi de 0,2; 0,4 e 0,6 no 30º, 60º e 90º dias, respectivamente. A fototerapia acelerou a cicatrização das úlceras de perna em pacientes diabéticos.This study evaluated the use of phototherapy in the healing of mixed leg ulcers in two diabetic patients (type 2 with arterial hypertension. The device had probe 1 (one 660nm LED, 5mW applied in 3 ulcers and probe 2 (32 890nm LEDs associated with 4 660nm LEDs, 500mW in 6 ulcers. After asepsis, ulcers were treated with probes to 3 J/cm2, 30sec per point, twice a week, followed by topical daily dressing with 1% silver sulphadiazine during 12 weeks. The following analyses of ulcers with software Image J showed that probe 2 presented mean healing rates of 0.6; 0.7 and 0.9, whereas probe 1 had 0.2;0.4 and 0.6 at 30, 60 and 90 days, espectively. Phototherapy accelerated wound healing of leg ulcers in diabetic patients.

  14. In vitro callus induction and plantlet regeneration of Achyranthes aspera L., a high value medicinal plant

    Institute of Scientific and Technical Information of China (English)

    Monokesh Kumer Sen; Shamima Nasrin; Shahedur Rahman; Abu Hena Mostofa Jamal

    2014-01-01

    Objective:To study callus induction from different explants (internode, leaf, root) and in vitro plantlets propagation from medicinally important plant Achyranthes aspera L. Methods:Sterilized explants were prepared by using 0.1%HgCl2 and 0.5%Bavistin and callus was obtained when cultured onto Murashige Skoog’s (MS) medium by using different concentrations and combination of 2,4-D, NAA, BAP, IAA, IBA with 3%sucrose and 0.8%agar. Induced callus was immediately transferred to MS medium containing at different concentrations of phytohormones for shootlets and rootlets induction respectively. Results:Sterilization treatment of 0.1%HgCl2 for 2-3 min and Bavistin 0.5%for 10-12 min showed the highest percentage of asepsis and survival rate. Maximum induction of callus was obtained from a combination of 2.0 mg/L 2,4-D and 0.5 mg/L NAA from leaf. Highest shootlets number (4.83±0.17) and length (3.8±0.16) cm were observed on full strength MS medium when fortified with BAP 4.0 mg/L and KIN 0.5 mg/L. Concerted efforts of BAP 2.0 mg/L and NAA 0.5 mg/L on full strength MS medium showed highest leaf number (6.77±0.94). In vitro raised shoots were allowed to root on different strengths of MS medium fortified with IAA and IBA at different concentrations. Experimentally, 3.0 mg/L IBA was enabled to induce maximum rootlets number (10.0±9.82) on full strength MS medium. Afterwards, regenerated shoots with well developed roots were successfully subjected to hardening process and were acclimatized. The survived plantlets showed 66.67%survival frequency without any morphological abnormality. Conclusions: The results demonstrated that different explants were good source of callus induction, morphology analysis as well as indirect plantlets regeneration.

  15. Qual seria a fonte de fungos miceliais encontrados em leite humano ordenhado? What is the source of mycelial fungi in expressed human milk?

    Directory of Open Access Journals (Sweden)

    Franz Reis Novak

    2002-06-01

    Full Text Available Caracterizou-se os gêneros de fungos miceliais encontrados em amostras de leite humano ordenhado, recebidas a partir de coleta domiciliar, pelo Banco de Leite Humano do Instituto Fernandes Figueira. Foram analisadas 821 amostras de leite humano ordenhado, obtidas ao acaso, a partir de frascos coletados nos domicílios pelas próprias doadoras, e realizadas pesquisas de bolores e leveduras e microrganismos mesófilos. As análises revelaram a ocorrência de bolores e leveduras em 43 (5,2% das amostras, com contagens atingindo a ordem de 10³UFC/ml, tendo sido isoladas 48 cepas de fungos miceliais, que foram identificadas por técnicas padrão de laboratório, como as seguintes: Aspergillus Grupo Niger (6,3%, Aspergillus sp. (4,2%, Paecilomyces sp. (12,6%, Penicillium sp. (60,4%, Rhizopus sp. (2,0% e Syncephalastrum sp. (14,5%. Discute-se a importância do controle da assepsia das mãos das doadoras, antes da coleta do leite humano.The authors characterized the genera of mycelial fungi found in samples of expressed human milk received through home collection by the Human Milk Bank of the Instituto Fernandes Figueira in Rio de Janeiro. A total of 821 samples of expressed human milk were taken randomly from bottles collected at home by the milk donors themselves and were investigated for molds, yeasts, and mesophilic microorganisms. The analyses showed the occurrence of molds and yeasts in 43 (5.2% of the samples, with counts reaching 103CFU/ml. Some 48 strains of mycelial fungi were identified by standard laboratory techniques, including: Aspergillus Niger group (6.3%, Aspergillus sp. (4.2%, Paecilomyces sp. (12.6%, Penicillium sp. (60.4%, Rhizopus sp. (2.0%, and Syncephalastrum sp. (14.5%. The authors discuss the importance of donor hands' asepsis prior to collecting human milk.

  16. A Histologic Evaluation on Tissue Reaction to Three Implanted Materials (MTA, Root MTA and Portland Cement Type I in the Mandible of Cats

    Directory of Open Access Journals (Sweden)

    F. Sasani

    2004-09-01

    Full Text Available Statement of Problem: Nowadays Mineral Trioxide aggregate (MTA is widely used for root end fillings, pulp capping, perforation repair and other endodontic treatments.Investigations have shown similar physical and chemical properties for Portland cement and Root MTA with those described for MTA.Purpose: The aim of this in vitro study was to evaluate the tissue reaction to implanted MTA, Portland cement and Root MTA in the mandible of cats.Materials and Methods: Under asepsis condition and general anesthesia, a mucoperiosteal flap, following the application of local anesthesia, was elevated to expose mandibular symphysis. Two small holes in both sides of mandible were drilled. MTA, Portland cement and Root MTA were mixed according to the manufacturers, recommendation and placed in bony cavities. In positive control group, the test material was Zinc oxide powder plus tricresoformalin. In negative control group, the bony cavities were left untreated. After 3,6 and 12 weeks, the animals were sacrificed and the mandibular sections were prepared for histologic examination under light microscope. The presence and thickness of inflammation, presence of fibrosis capsule, the severity of fibrosis and bone formation were investigated. The data were submitted to Exact Fisher test, chi square test and Kruskal-Wallis test for statistical analysis.Results: No statistically significant differences were found in the degree of inflammation,presence of fibrotic capsule, severity of fibrosis and inflammation thickness between Root MTA, Portland cement and MTA (P>0.05. There was no statistical difference in boneformation between MTA and Portland cement (P>0.05. However, bone formation was not found in any of the Root MTA specimens and the observed tissue was exclusively of fibrosis type.Conclusion: The physical and histological results observed with MTA are similar to those of Root MTA and Portland cement. Additionally, all of these three materials are biocompatible

  17. 琼胶寡糖激发坛紫菜对附生细菌的减少作用%Oligoagars Induce Defense Response of Porphyra haitanensis to Epiphytic Bacteria

    Institute of Scientific and Technical Information of China (English)

    朱方超; 李崇丰; 王秀娟; 朱竹君; 陈海敏; 严小军

    2012-01-01

    The rot disease of Porphyra haitanens& cultured under 18℃ and 35℃ were obviously lightened by pretreatment with oligoagars. The defense response elicited by oligoagars was strong enough to kill epiphytic bacteria associated with the algal. Up to 94.7% of the resident bacterial flora of healthy plants was eliminated within 60 min after treatment by 100μg.mL-1 oligoagars. Addition of catalase prior to oligoagars partially inhibited this elimination. Mixture of three kinds of antibiotics was used to treat P haitanensis to get the asepsis culture systems. Approximately 60.8% of reinfected pathogenic bacteria on axenic algal were eliminated within 3 h after elicitation by oligoagars. Antimicrobial test revealed that oligoagars showed no direct toxicity to associated bacteria or pathogen, but a rapid release of hydrogen peroxide was observed after adding of oligoagars in medium. From these results, we infer that oligoagars can be recognized as defense elicitors by P. haitanensis to protect algal efficiently from infections by eliminating the associated pathogenic bacteria.%以琼胶寡糖处理坛紫菜Porphyra haitanensis,激发其防御反应,坛紫菜在18℃生长和35℃热激时的病烂现象得到明显改善。寡糖激发的防御信号能够杀死附生在藻上的细菌,健康藻上约94.7%的附生菌群在加入100μg.mL-1琼胶寡糖1 h内被杀死,但过氧化氢酶可部分抑制这种作用。利用3种抗生素组合获得无菌坛紫菜体系,回染致病细菌后,约60.8%的回染细菌在寡糖激发后的3 h内被消灭。这种附生细菌的减少现象不是源于琼胶寡糖的直接抑菌作用,可能与琼胶寡糖引起坛紫菜H2O2的瞬时暴发有关。结果表明,琼胶寡糖能够作为坛紫菜的抗性激发子,通过诱导坛紫菜自身的防御反应来减少附生细菌的数量,从而保持藻体的健康生长。

  18. Ionic implantation by plasma in titanium and stainless steels used in prosthesis and medical instruments

    International Nuclear Information System (INIS)

    A study of a process known as plasma immersion ion implantation (PIII) of nitrogen at low voltages (< 4 kV) into three kind of samples: 1) austenitic stainless AISI 316-L steel plates, 2) ferritic stainless AISI 434 steel-based dentistry drills and 3) commercially pure titanium (CPTi) disks. On the case of CPTi the study was conducted in nitrogen- oxygen calibrated mixtures: 90% N-10% O, 80% N-20% O, 70% N-30% O and in 99.5% pure oxygen and 99.9% pure nitrogen. The PIII process was carried out by using a direct current plasma source controlled both in voltage and current, a negative voltage pulse modulator, a stainless AISI 304 steel vacuum chamber and a rod of the same material, horizontally located in the upper region of the chamber, which plays the role of anode in the plasma discharge. The purpose of the nitriding is forming a relatively thick layer on the surface of the steel specimens in order to enhance their both microhardness and general corrosion performances, desirable in medical applications. This layer contains interstitial nitrogen atoms (∼24% at.) which gives place to a deformed lattice (expanded phase) of the steel. Vickers microhardness and potentiodynamic tests (the latter in agreement to the norm ASTM G-61-89) confirm an increase of microhardness up to three times and a decrease of general corrosion rate in one order of magnitude. The nitriding of de dentistry drills is aimed at inhibiting the pitting corrosion produced by the asepsis process which results in pit nucleations, their propagation and consequent fractures when being under cyclic stress (fatigue). Scanning electron microscope micrographs reveal the risks involved in surpassing the critical treatment simple temperature of 450 C as the PIII process itself induces pitting. On its part, cyclic (ASTM G-61) potentiodynamic tests indicate an excellent pitting corrosion resistance of the samples treated under 450 C. In turn, the treatment of CPTi was meant to develop oxidized and

  19. 隐源性脑脓肿16例临床分析%Cryptogenic Brain Abscess:a Report of 16 Cases

    Institute of Scientific and Technical Information of China (English)

    王卫民; 肖国民; 裘五四; 姜启周; 程军; 吴建跃

    2009-01-01

    OBJECTIVE To study the clinical diagnosis and treatment of cryptogenic brain abscess. METHODS Sixteen cases with brain abscess of unknown sources of infection during the past 11 years were analyzed. RESULTS Of 16 patients, 13 patients got bacterial culture, and showed staphylococcus asepsis in 4 cases, Streptococcus pyo-genes in 3 cases,Escherichia coli in 2 cases,Klebsiella pneumoniae in 1 case and aseptic growth in 3 cases. Fifteen cases were cured, 1 case died of multiple organs function failure. Of cured cases , the exception of 1 case of elderly patients have had muscle strength slightly worse in the side of the distal limb, the remaining cases were good. CONCLUSIONS The clinical manifestations of cryptogenic brain abscess are not typical. The abscess could be more common in elderly than younger. To timely diagnose and treat, the prognosis is good. Abscess puncture and drainage are the first choice. Small brain abscess could be cured by conservative treatment of antibiotics.%目的 探讨隐源性脑脓肿的临床诊断及治疗问题.方法 分析1997年1月-2008年3月医院收治的16例病原学来源不明确、病程表现不典型的脑脓肿患者.结果 13例手术患者脓液培养出金黄色葡萄球菌4株、酿脓链球菌3株、大肠埃希菌2株、肺炎克雷伯菌1株;治愈15例,自动出院1例,治愈病例除1例老年患者轻偏瘫外,其余恢复均良好.结论 隐源性脑脓肿临床表现呈非特异性,以革兰阳性菌感染为主,老年人比例高;及时明确诊断及治疗,预后良好,手术以穿刺引流为首选,小型脑脓肿抗菌药物保守治疗也可治愈.

  20. Ionic implantation by plasma in titanium and stainless steels used in prosthesis and medical instruments; Implantacion ionica por plasma en titanio y aceros inoxidables usados en protesis e instrumental medico

    Energy Technology Data Exchange (ETDEWEB)

    Munoz C, A. E. [ININ, 52750 La Marquesa, Estado de Mexico (Mexico)

    2008-07-01

    A study of a process known as plasma immersion ion implantation (PIII) of nitrogen at low voltages (< 4 kV) into three kind of samples: 1) austenitic stainless AISI 316-L steel plates, 2) ferritic stainless AISI 434 steel-based dentistry drills and 3) commercially pure titanium (CPTi) disks. On the case of CPTi the study was conducted in nitrogen- oxygen calibrated mixtures: 90% N-10% O, 80% N-20% O, 70% N-30% O and in 99.5% pure oxygen and 99.9% pure nitrogen. The PIII process was carried out by using a direct current plasma source controlled both in voltage and current, a negative voltage pulse modulator, a stainless AISI 304 steel vacuum chamber and a rod of the same material, horizontally located in the upper region of the chamber, which plays the role of anode in the plasma discharge. The purpose of the nitriding is forming a relatively thick layer on the surface of the steel specimens in order to enhance their both microhardness and general corrosion performances, desirable in medical applications. This layer contains interstitial nitrogen atoms ({approx}24% at.) which gives place to a deformed lattice (expanded phase) of the steel. Vickers microhardness and potentiodynamic tests (the latter in agreement to the norm ASTM G-61-89) confirm an increase of microhardness up to three times and a decrease of general corrosion rate in one order of magnitude. The nitriding of de dentistry drills is aimed at inhibiting the pitting corrosion produced by the asepsis process which results in pit nucleations, their propagation and consequent fractures when being under cyclic stress (fatigue). Scanning electron microscope micrographs reveal the risks involved in surpassing the critical treatment simple temperature of 450 C as the PIII process itself induces pitting. On its part, cyclic (ASTM G-61) potentiodynamic tests indicate an excellent pitting corrosion resistance of the samples treated under 450 C. In turn, the treatment of CPTi was meant to develop oxidized and

  1. 软性角膜接触镜在角膜外伤中的应用%Soft corneal contact lens in the treatment of corneal trauma

    Institute of Scientific and Technical Information of China (English)

    丰香兰; 梁惠英; 张宁; 张玉环; 田玉民

    2001-01-01

    Objective:To evaluate the therapeutic effect of the soft corneal contact lens in the treatment of corneal trauma.Method:63 eyes of 59 cases with corneal,including 9 eyes not sutured with penetrating injury of corneal,39 eyes postsutured,15 eyes with chemical and thermic burns,were treated with soft corneal contact lens.After dressing for two or three days,they wore the soft corneal contact lens on the condition of asepsis,frequently local medication and application of general medication.Results:After being worn the soft corneal contact lens,the symptom of stimulation was eliminated.Corneal epithelial renewed rapidly,wound recovery stage was shortened.There was no complications. The visual acuity was improved to some degree.Conclusion:During the treatment of corneal trauma,the soft corneal contact lens and reasonable medication make complementation.It also can promote wound healing,shorten the course of the treatment and reduce the complications.%目的:评价软性角膜接触镜治疗角膜外伤的疗效。方法:配戴软性角膜接触镜治疗角膜外伤59例、63眼,包括角膜穿通伤未缝合9眼,缝合术后39眼,化学及热烫伤11例、15眼,伤后包扎2~3d,无菌条件下戴镜,局部用药,配合全身用药。结果:戴镜后刺激症状消除,角膜上皮修复快,伤口愈合期缩短,无并发症发生,视力均有不同程度的提高。结论:在角膜外伤治疗过程中,角膜接触镜与全身及局部合理用药,有助于促进伤口愈合,缩短疗程,减少并发症。

  2. 颅脑外伤术后医院获得性肺炎危险因素分析及防治措施%Analysis of the risk factors and preventive measurement for hospital acquired pneumonia for postoperative severe traumatic brain injury patients

    Institute of Scientific and Technical Information of China (English)

    张玉玲

    2008-01-01

    Objective To investigate the risk factors and preventive measurement of hospital acquired pneumonia(HAP) for severe traumatic brain injury patients after surgery. Methods A total of 406 cases of patients operated for severe traumatic brain injury from Oct 2004 to Sep 2007 were retrospectively analyzed, and the risk factors were summarized. Results Fifty - one out of 57 cases of patients with HAP were satisfactorily cured, the other 6 cases dead. The risk factors prone to HAP were operative anesthesia, respiratory machine application, long hospitalization, respiratory tract incision, examination, mis - inspiration, reflec-ted high hoed suger level, antibacterial use, polluted air condition etc. Conclusion Enhancing consciousness of infection can-troll, reinforcing sickroom management, keeping air condition sterilized, strictly complying with asepsis operative rules, using antibacterial correctly are significant measures to prevent HAP.%目的 探讨颅脑外伤术后医院获得性肺炎危险因素及防治措施.方法 收集我院2004年10月至2007年9月颅脑外伤术后住院患者406例,对发生医院获得性肺炎的危险因素进行回顾性分析.结果 57例医院获得性肺炎患者经积极治疗,51例治疗效果满意,死亡6例.造成医院获得性肺炎的危险因素有手术麻醉方式、接受机械通气、住院时间长、气管切开、昏迷、误吸、应激性高血糖、抗菌药物应用、空气环境污染等.结论 增强感染控制意识,加强病房管理,做好空气消毒,严格无菌操作规程,合理应用抗菌药物是预防医院获得性肺炎的重要措施.

  3. Assessment of protocols for surgical-site preparation in a regional network of hospitals Evaluación de la normalización de la preparación prequirúrgica en una red regional de hospitales Avaliação da normatização da preparação pré-cirúrgica em uma rede regional de hospitais

    Directory of Open Access Journals (Sweden)

    Maria Dolores Peñalver-Mompeán

    2012-04-01

    Full Text Available Surgical-site infection is a preventable adverse event. Implementation of good practices for correct surgical-site preparation can contribute to lessen this safety problem. The objective of this study was to describe the presence and quality of protocols on surgical-site preparation in the Murcia (Spain regional network of public hospitals. The indicator "existence of protocol for surgical-site preparation" was assessed, as well as the formal quality (expected attributes and contents (compared to current evidence-based recommendations of existing documents. Seven of the nine hospitals have a protocol for surgical-site preparation. Opportunities to improve have been identified in relation to the protocols' formal quality and contents. Recommendations related to skin asepsis are incomplete and those related to hair removal contradict existing evidence. Most hospitals have protocols for surgical-site preparation; however, there is great room for improvement, in relation to their expected attributes and to the inclusion of evidence-based recommendations.La infección del sitio quirúrgico es un evento adverso prevenible mediante la implementación de buenas prácticas de preparación prequirúrgica. El objetivo del presente estudio fue describir la existencia y calidad de protocolización de la preparación prequirúrgica en la red regional de hospitales públicos de Murcia (España. Se evaluó el indicador "Existencia de protocolo/norma de preparación prequirúrgica", analizando la calidad formal (atributos y de contenido (presencia de recomendaciones basadas en evidencia de los documentos existentes. Siete (de nueve hospitales acreditaron tener protocolos de preparación prequirúrgica. Existen oportunidades de mejora en la calidad formal y de contenido. Las recomendaciones sobre asepsia son incompletas en la mayoría de los documentos, y las de eliminación del vello contrarias a la evidencia. La preparación prequirúrgica está protocolizada

  4. Legal, ethical, and procedural bases for the use of aseptic techniques to implant electronic devices

    Science.gov (United States)

    Mulcahy, Daniel M.

    2013-01-01

    animals often mask the signs of infection to avoid attracting predators (Wobeser 2006). Guidance specific to sterilization of electronic devices for implantation is limited in the wildlife record (Burger et al. 1994; Mulcahy 2003). Few biologists have been formally trained in aseptic technique, but most biologists know that electronic devices should be treated in some way to reduce the chance for infection of the host animal by bacteria, viruses, parasites, and fungi. Most biologists (73%) who implant devices into fishes believe aseptic techniques are important (Wagner and Cooke 2005). However, I maintain that many biologists find it difficult to place the concept of asepsis into practice in their work because of confusion about what constitutes aseptic technique, a lack of surgical knowledge and training, the perception of increased costs, or the belief that aseptic surgeries are impractical or unnecessary for their application. Some have even argued that, while compromising surgical techniques in the field might result in complications or mortalities, the money saved would allow for a compensatory increase in sample size (Anderson and Talcott 2006). In this paper I define aseptic surgical techniques, document the legal and professional guidance for performing aseptic surgeries on wild animals, and present options for sterilizing electronic devices and surgical instruments for field use.

  5. Establishment of a new continuous culture and multiple harvests processusing cell factory for rabies vaccine for human use%应用细胞工厂建立人用狂犬病疫苗连续培养多次收获工艺

    Institute of Scientific and Technical Information of China (English)

    李红芳; 徐枫; 赵祖波; 任红卫; 杨淼; 马超; 辛军; 龚健; 李守丽; 于滢

    2013-01-01

    目的:为提高生产效率、增加原代地鼠肾细胞单产量及狂犬病病毒产量,建立人用狂犬病疫苗(地鼠肾细胞)连续培养多次收获工艺。方法选用12~14日龄SPF地鼠,无菌取肾经消化,制备成细胞悬液,分装到40层细胞工厂并培养细胞成单层;接种狂犬病病毒固定毒aG株,连续培养病毒并多次收获。分别对同一细胞批制备的多个单次病毒收获液的免疫原性、病毒滴度和地鼠肾细胞蛋白质含量进行检测。结果用40层细胞工厂培养原代地鼠肾细胞和狂犬病病毒,细胞接种浓度为1.0×106~1.5×106cells /mL,(36±1)℃培养72 h成致密单层;按0.1 MOI病毒接种,可进行6次收获病毒;多个单次病毒收获液病毒滴度均不低于6.0 lgLD50/mL;免疫原性检查保护指数不低于100;地鼠肾细胞蛋白质残留量随着收获次数的增加而不断降低。结论用细胞工厂建立了人用狂犬病疫苗连续培养多次收获工艺,能显著提高地鼠肾单产量,增加产能。%Objective To improve the production efficiency and increase primary hamster kidney cells ( PHKC) and rabies virus yield.To establish a new continuous culture and multiple harvests process using cell factory for rabies vaccine ( Ham-ster kidney cells ) for human use .Methods PHKC suspensions were prepared by asepsis digesting 12 to 14 day old pri-mary hamster kidney .The cells suspension was packed into cell factory and cultured to cell monolayer .Rabies fixed strains aG was inoculated and cultured ,and then multiple harvests were taken .Immunogenicity test , virus titer test and PHKC matrix proteins tset were taken for every single virus harvest from one cell batch .Result Cells cultures were carried out in CellSTACK®-40(40-layers cell factory) with cell density of 1.0×106-1.5×106cells /mL at (36±1) ℃ for 72 h.Cells were infected with rabies aG strains at 0.1 MOI and six virus harvests were

  6. Crescimento inicial de mangabeira (Hancornia speciosa Gomes em diferentes meios de germinação in vitro Initial growth of mangabeira (Hancornia speciosa Gomes in different culture medium of in vitro germination

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    Ana da Silva Lédo

    2007-08-01

    Full Text Available O objetivo do trabalho foi determinar as condições mais favoráveis para a germinação in vitro de sementes e o crescimento inicial de plântulas de mangabeira. Após assepsia, sementes oriundas de frutos maduros foram inoculadas em tubos de ensaio contendo os seguintes tratamentos: T1-15 mL de meio de cultura MS; T2-15 mL de meio de cultura MS + 2,0 g L-1 de carvão ativado; T3-15 mL de meio de cultura ½ MS; e T4-15 mL de meio de cultura ½ MS + 2,0 g L-1 de carvão ativado. Todos os meios de cultura foram gelificados com 0,3 g L-1 de Phytagel® e suplementados com 3,0 g L-1 de sacarose. O experimento foi instalado em delineamento inteiramente casualizado com quatro tratamentos e oito repetições, sendo cada parcela experimental composta de dez tubos de ensaio contendo uma semente cada. Não houve diferença significativa dos tratamentos para a porcentagem de germinação aos 20 dias, que variou de 95 a 100%. Quanto ao comprimento da raiz principal, observou-se que o meio de cultura constituído de ½ MS com 2,0 g L-1 de carvão ativado proporcionou maior crescimento quando comparado com os demais tratamentos. Aos 50 dias, não foi observada a formação de plântulas anormais e nem diferenças significativas do comprimento da parte aérea das plântulas. Entretanto, a diluição em 50% dos sais do meio MS associada à presença de carvão ativado induziu maior crescimento da raiz principal (8,50 cm quando comparado com meio MS, na presença (6,19 cm ou ausência (6,00 cm de carvão ativado.The objective of this study was to determine the most favorable conditions for the in vitro germination of mangaba seeds and initial development of plantlets. After asepsis, emerging seeds of mature fruits were inoculated in tubes contend the next treatments: T1-15 mL of MS culture medium; T2-15 mL of MS culture medium + 2.0 g L-1 of activated charcoal; T3-15 mL of ½ MS culture medium; and T4-15 mL of ½ MS culture medium + 2.0 g L-1 of activated

  7. Infecciones de repetición en un paciente portador de un sistema de neuromodulación tras la picadura de insecto Recurrent infection following an insect bite. In a patient with a neuromodulation system

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    V. Villanueva

    2006-06-01

    cord stimulators for the management of severe and intractable pain. Complications after the implantation of the electrodes are infrequent, but some as breakage, infection and displacement have been reported. The case of a young technical agricultural engineer with a medical history of allergy to acarus is described. He developed a septic shock following the sting of an insect (Simu-lium Damnasum on the top right limb, being admitted to intensive care for 48 hours. During his hospital stay, he had severe neuropathic pain with a poor response to conventional treatment. Three and a half years after this event, the patient was sent to the Pain Management Unit, where the first stage of an electrode implantation for a spinal cord stimulator was carried out. The system was withdrawn after six days due to a Staphylococcus Aureus infection. A series of epicutaneous test for regular substances and for those from the spinal cord stimulator components were made. The likelihood of an allergy to some component of the implantable device, responsible for an inflammatory reaction and subsequent infection of the catheter, was ruled out. It is important to point out that careful asepsis is still the best means to avoid infections. In patients with a medical history of atopia or allergic reactions, allergic tests should be considered as a measure to prevent rejections of devices.

  8. Effects of quorum sensing system lasR/rhlR gene on the expression of Foxp3, TGF-β1 and IL-10 of lung tissue in tracheal intubation model rat with Pseudomonas aeruginosa biofilm infection

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    Qing-qing XIANG

    2016-03-01

    Full Text Available Objective  To investigate the effects of lasR/rhlR gene on Foxp3, TGF-β1 and IL-10 of lung tissue in rat tracheal intubation model with biofilm infection of Pseudomonas aeruginosa (Ps. aer wild strain (PAO1 and quorum sensing (QS deficient strain (ΔlasRΔrhlR. Methods  Twenty-one SD rats were randomly assigned into 3 groups (7 each: ΔlasRΔrhlR-treated group, PAO1-treated group and sterile control group. Biofilms (BF were cultured in vitro, and the BF coated tube (infected respectively with Ps. aer PAO1 strain, ΔlasRΔrhlR strain, or with asepsis was inserted into the trachea to establish the rat model. The rats were sacrificed on the 7th day after intubation. Colony count of lung tissue homogenate (cfu and lung HE staining were performed, and IL-10 content in bronchoalveolar lavage fluid (BALF, TGF-β1 in lung tissue, and the expression of Foxp3 mRNA in lung cells were determined. Results  The bacterial counts were significantly higher in PAO1 and ΔlasRΔrhlR groups than that in sterile control group, and the counts were obviously higher in PAO1 group (10 400.00±6313.70/g lung tissue than that in ΔlasRΔrhlR group (975.00±559.97/g lung tissue, P<0.05. There was no significant pathological changes in lung tissue in sterile control group, while the bronchi and blood vessels in PAO1 group were infiltrated by a large number of inflammatory cells and complicated with alveolar septum thickening and local abscess and necrosis. The pathological changes were milder in ΔlasRΔrhlR group than in PAO1 group; the expression of Foxp3 mRNA was higher in the two Ps. aer infected groups than that in sterile control group (0.65±0.32, and it was significantly higher in PAO1 group (4.62±1.07 than in ΔlasRΔrhlR group (2.15±1.43, P<0.05. The accumulated optical density value of TGF-β1 was significantly higher in the two Ps. aer infected groups than in sterile control group (3721.66±1412.95, and significantly higher in PAO1 group (65 090.56±33

  9. Analysis of bacterial culture test among three gloves wearing techniques%三种戴手套法的无菌效果分析

    Institute of Scientific and Technical Information of China (English)

    周晓虹; 谭丽; 何思勤; 谭吉林

    2015-01-01

    目的:对比分析三种戴手套法即传统戴手套法、半封闭式戴手套法、全封闭式(非接触式)戴手套法的无菌效果。方法选3名手术室护士,先按外科手消毒规范洗手,穿无菌衣,用碘伏擦手消毒,然后分别用三种方法各戴手套10双,戴手套时发现有向内卷边者或戴手套后发现手套外粘有碘伏者视之为污染,并用棉试子涂抹采样作细菌培养。结果传统戴手套法:60只手套中有21只污染,占35%;半封闭式戴手套法:60只手套中有1只污染,占1.67%;全封闭式戴手套法:60只手套中有1只污染占1.67%。半封闭式和全封闭式戴手套法与传统戴手套法相比,其差异均具有统计学意义(χ2=22.26,P<0.01)。细菌培养结果:在传统戴手套法中有1只手套取样发现细菌生长。结论半封闭式和全封闭式戴手套法,均有效避免了传统戴手套法易卷边污染无菌面的缺点,能有效减少感染机会;其中半封闭式戴手套法其戴手套方式类同传统戴手套法,操作更简单,更易推广。%Objective Contrastive analysis of bacterial culture test among three techniques of wearing opera‐tion gloves :traditional ,semi‐closed ,full‐closed (non‐contacted) .Methods Selected five operation room nurses ,hand‐washing with traditional surgical hands disinfection standard ,wearing asepsis clothing ,and disinfected with povidone‐iodine ,then wearing 10 pairs of operation gloves respectively by above three techniques ,contamination was deter‐mined while inward curling of glove edge or povidone‐iodine was found outside of the gloves ,take cotton‐swab smear sampling method for the germiculture .Results Traditional method :21 of 60 (35% ) gloves were found polluted ;Semi‐closed method :1 of 60 (1 .67% ) gloves was polluted ;full‐closed method :1 of 60 (1 .67% )gloves were pollu‐ted .The difference between the traditional and

  10. Antibioprophylaxie dans les chirurgies gynécologiques et obstétricales propres et propres contaminées à l'Hôpital Général de Yaoundé, Cameroun

    Science.gov (United States)

    Ngowa, Jean Dupont Kemfang; Ngassam, Anny; Mbouopda, R Motzebo; Kasia, Jean Marie

    2014-01-01

    Introduction Il s'agira de déterminer l'incidence et les facteurs associés à l'infection post opératoire dans les chirurgies gynécologiques et obstétricales propres et propres contaminées. Méthodes Étude de cohorte prospective axée sur la surveillance de l'infection post opératoire chez les patientes opérées d'une chirurgie gynécologique ou obstétricale propre ou propre contaminée au Service de Gynécologie B de l'Hôpital Général de Yaoundé, après une antibioprophylaxie avec la cefazoline. La période d’étude de 18 mois s'est étalée de janvier 2012 à juin 2013. La surveillance des patientes opérées se poursuivait sur les 30 premiers jours post opératoires. Résultats Au total 211 patientes opérées d'une chirurgie gynécologique ou obstétricale propre ou propre contaminée ont été enrôlées dans cette étude. La moyenne d’âge des patientes était de 35,4 ±10 ans; les chirurgies propres contaminées représentaient 76,3% et les chirurgies propres 23,7%. Nous avons observé au total 06 (2,8%) cas d'infection post opératoire, dont 03 (1,4%) cas d'infection du site opératoire, 02 (0,95%) cas d'infection urinaire et 01(0,47%) cas d'infection pulmonaire. Les variables significativement associées à l'infection post opératoire étaient la durée de la chirurgie (durée moyenne: 126± 89min vs 82± 50 min; pinfection post opératoire global de 2,8% et d'infection du site opératoire de 1,4% vient renforcer les données de la littérature sur l'efficacité de l'antibioprophylaxie dans les chirurgies gynécologiques et obstétricales propres et propres contaminées en milieu africain. Cependant le respect des principes d'asepsie péri opératoire et une sélection précise de la classe de chirurgie devraient être de règle dans notre contexte. PMID:25667685

  11. Incidence of seedborne fungi on pink trumpet tree (Tabebuia impetiginosa and yellow poui (Tabebuia ochracea in Roraima = Incidência de fungos associados a sementes de ipê-rosa (Tabebuia impetiginosa e ipê-amarelo (Tabebuia ochracea em Roraima

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    Jefferson Fernandes do Nascimento

    2012-04-01

    Full Text Available The objective of this study was to identify and quantify fungi associated with seeds ipe-pink (Tabebuia impetiginosa, yellow-ipe (Tabebuia ochracea and evaluate the effects of aseptic seed germination and seed seeding. The experiment was done at the Laboratory of Plant Science Center of Agrarian Sciences, Federal University of Roraima. Samples of ipê yellow and pink ipe were collected and extracted from fruits harvested in the urban area of the city of Boa Vista - RR. Each sample was divided into two sub-samples, treated and untreated, and were then submitted to germination and health analyses. The filter paper method was used for the health test where contaminated seeds were analyzed for the detection and identification of fungi. For the germination test method was also the filter paper, obtained the germination rate, rate of plants with lesions, number of seeds germinated and the rate of non-germinated seeds that had fungus. The results were subjected to variance analysis and when significant, means were compared by the Tukey test at 5% probability. The experimental design was completely randomized with four replications of 50 seeds for each treatment. Asepsis with 70% alcohol for a minute then with sodium hypochlorite (NaClO to 2% for three minutes was positive for the elimination of fungi on seeds of ipe-yellow and ipe-pink, it favored germination and decreases the rate of seedlings with lesions. = Objetivou-se com o presente trabalho identificar e quantificar os fungos associados às sementes de ipê-rosa (Tabebuia impetiginosa, ipê-amarelo (Tabebuia ochracea e avaliar o efeito da assepsia das sementes na germinação e na plântula. O Experimento foi realizado no Laboratório de Fitotecnia do Centro de Ciências Agrárias da Universidade Federal de Roraima. Foram coletadas amostras de sementes de ipê-amarelo e ipê-rosa extraídas de frutos colhidos na área urbana do Município de Boa Vista - RR. Cada amostragem foi dividida em duas

  12. 花烛突变体叶色嵌合性状的分化特征与保持方法%Differentiation characteristics and retention method of leaf color chimera feature of mutated plantlet of Anthurium andraeanum

    Institute of Scientific and Technical Information of China (English)

    陈星旭; 邵会会; 王广东

    2011-01-01

    Using asepsis seedlings of leaf color chimera type of Anthurium andraeanum ' Sonate' as the experimental materials, single-bud cultures of sixteen individuals without top bud chimera feature were carried out, and differentiation characteristics of leaf color chimera feature during regeneration process of axillary bud and stem basal part were observed. And based on observation results, the retention method of leaf color chimera feature of mutated plantlet of A. Andraeanum was summed up. The results show that chimera percentage of regenerated plantlets from axillary buds of mutated plantlets in proliferation and rooting phases is 25.0%-75.0% and 25.0%-66.7% and total chimera percentage is 48.4% and 47. 8% , respectively. The regenerated plantlets from axillary buds with chimera feature are all burgeoned from axils of chimera leaves. And chimera plantlet can also be regenerated from the stem basal part of mutated plantlets in rooting phase with a chimera percentage of 33. 3% -80. 0% and total chimera percentage of 64. 7%. It is concluded that the problem of losing leaf color chimera feature of top bud of mutated plantlet of A. Andraeanum could be resolved by single-bud in vitro culture. And chimera feature of mutated plantlet can be retained with axillary bud (in proliferation and rooting phases) and basal part (in rooting phase) regeneration cultures.%以花烛品种‘Sonate’(Anthurium andraeanum‘Sonate’)的叶色嵌合型无菌苗为材料,对顶芽失去嵌合性状的16个单株分别进行单芽培养,观察侧芽及茎基部再生过程中叶色嵌合性状的分化特征;并据此归纳花烛突变体叶色嵌合性状的保持方法.结果表明:处于增殖和生根阶段的花烛突变单株侧芽再生植株的嵌合率分别为25.0%~75.0%和25.0% ~ 66.7%,总的嵌合率分别为48.4%和47.8%,具有嵌合性状的侧芽再生植株均萌发于嵌合叶片的叶腋处;处于生根阶段的突变单株的茎基部也能再生出

  13. [Survey of methods of cleaning, decontamination, disinfection and sterilization in dental health services in tropical areas].

    Science.gov (United States)

    Clapeau, G; Decroix, B; Bakayoko-Ly, R; Varenne, B; Dosso-Hien, D; Decroix, M O

    1997-01-01

    hygiene standards despite difficult practice conditions, exacerbated by supply problems. In all applications, hygiene involves a succession of closely-related, logical steps, which form an asepsis chain aimed at preventing the transmission of infection. Our survey shows that fundamental elements of hygiene require attention to achieve this aim. The cleaning, disinfection and sterilizing of floor surfaces and equipment should be improved and more widespread use made of disposable items. It is important to define the hygiene level required for particular treatments, taking into account the oral and dental micro flora and whether the equipment has been decontaminated, disinfected or sterilized. A piece of equipment is decontaminated if it has been mechanically cleaned and decontaminated. It is disinfected if these steps are followed by rinsing with sterile water, drying and conditioning. An item is described as sterilized if it is cleaned, decontaminated, rinsed, dried, conditioned and then sterilized. We found that a wide variety of chemicals were used to clean hands, surfaces and equipment. The nature and appropriate methods of use of these chemicals were not widely known. Understanding the chemical composition of these chemicals makes it possible to classify them into cleaning agents, detergents, decontaminating agents and disinfectants. The definition, choice and use of antiseptics and disinfectants should be strictly controlled. It is also vital that single-use disposable items are used only once and are never reused. Hygiene in the dental surgery is a chain of processes aimed at protecting the patient and the medical staff. There are many links in the chain, involving floor and surface hygiene, hand washing by dentists and dental assistants, washing of surgery linen and treatment of equipment. Dental practitioners should continually focus on ensuring that the chain of hygiene procedures is not broken, in their own interests as well as in those of their patients. PMID

  14. Incidencia de bacteriemia en pacientes portadores de catéter permanente tunelizado para hemodiálisis Incidence of bacteriaemia in patients with permanent tunnelled haemodialysis catheters

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    Engracia Martín Chacón

    2008-12-01

    de sellado con antibióticos ni de mupirocina tópica.Catheter-related bacteriaemia is one of the main complications increasing the risk of loss of the catheter or even death of the patient. The use of sealing of the catheter lumen with antibiotics or the use of topical mupirocin on the exit orifice of the catheter have been proven to reduce the incident of bacteriaemia; however, the most aseptic possible handling of the catheter is the main tool for reducing this incidence. Goal: to assess the rate of incident of bacteriaeima in patients with permanent tunnelled haemodialysis catheters without the use of sealing with antibiotics or the use of mupirocin, and placing particular emphasis on asepsis during handling. All patients with tunnelled catheters between 1st January and 31st December 2007 were included. In total there were 17 patients, 4 men and 13 women with an average age of 71.3 (11.3 years. The protocol consisted of using as aseptic a field as possible, the use of gloves each time the catheter was handled, use of masks both by the handler and the patient and the disinfection of the tunnel exit orifice with chlorhexidine, and of both catheter connections at the start and finish of the session. At 31st December the prevalence of patients with tunnelled catheters was 38.5%. During the period studied, a total of 8 bacteriaemias occurred in a total of 4462 days of monitoring (incidence rate of 1.8 bacteriaemias/1000 catheter-days. Four blood cultures were positive for Staphylococcus epidermidis, 1 for Corynebacterium, 1 for Staphylococcus auricularis and 2 were negative. No other Staphylococcus aureus bacteriaemia occurred, nor any other sign of infection of the exit orifice. Conclusion: an aseptic as possible handling of the catheter reduces the risk of bacteriaemia related to the catheter without the need to use sealing with antibiotics or topical mupirocin.

  15. Elimination of intracanal infection in dogs' teeth with induced periapical lesions after rotary instrumentation: influence of different calcium hydroxide pastes Eliminação da infecção intracanal em dentes de cães com lesões periapicais induzidas após instrumentação automatizada: influência de diferentes pastas de hidróxido de cálcio

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    Janir Alves Soares

    2006-06-01

    Full Text Available The aim of this study was to evaluate the antiseptic efficacy of rotary instrumentation associated with calcium hydroxide-based pastes prepared with different vehicles and antiseptics. Chronic periapical lesions were experimentally induced in 72 premolar root canals of four dogs. Under controlled asepsis, after initial microbiological sampling (A1, the root canals were instrumented using the ProFile system in conjunction with 5.25% sodium hypochlorite and the intracanal medication was placed. Four experimental groups were formed according to the pastes used: group 1- Calen (n=18, group 2- Calen+CPMC (n=20, group 3- Ca(OH2 p.a.+ anaesthetic solution (n=16 and group 4- Ca(OH2 p.a.+ 2% chlorhexidine digluconate (n=18. After 21 days, the pastes were removed; the canals were emptied and 96 hours later a second microbiological sample was obtained (A2. The incidence of positive microbiological cultures and the number of cfus in stages A1 and A2 were compared statistically by the Wilcoxon test while the influence of the different treatments in intracanal infection was evaluated by Kruskal-Wallis test at 5% significance level (pO objetivo deste estudo foi avaliar a eficácia anti-séptica da instrumentação rotatória associada às pastas à base de hidróxido de cálcio [Ca(OH2] contendo diferentes veículos e anti-sépticos. Lesões periapicais crônicas foram experimentalmente induzidas em 72 canais radiculares de pré-molares de 4 cães. Sob controlada assepsia, após amostras microbiológicas iniciais (A1, fez-se a instrumentação com o sistema ProFile coadjuvado pela solução de hipoclorito de sódio a 5,25%, seguido de medicação intracanal. Em função das pastas utilizadas obtiveram-se 4 grupos: grupo 1- Calen (n=18, grupo 2- Calen+PMCC (n=20, grupo 3- Ca(OH2 p.a.+ solução anestésica (n=16 e grupo 4- Ca(OH2 p.a.+ solução de digluconato de clorexidina a 2% (n=18. Transcorridos 21 dias, removeram-se as pastas, deixando os canais

  16. 2011年黑龙江省黑瞎子岛鼠群中钩端螺旋体感染状况调查%The infection status of Leptospira in rodents on the Heixiazi island of Heilongjiang province, China,in 2011

    Institute of Scientific and Technical Information of China (English)

    王振东; 王莎莎; 刘丽娟; 杨宇; 李明; 郭天宇; 富英群; 侯咏; 孙肖红

    2013-01-01

    目的 调查2011年黑龙江省黑瞎子岛鼠群中钩端螺旋体的感染情况.方法 于2011年4-10月在黑龙江省黑瞎子岛采用夹夜法捕鼠,共捕鼠356只,无菌操作采集鼠肾样品;提取鼠肾脏总核酸,采用PCR方法,利用钩体鉴别引物,对提取的肾脏总核酸中23 S rDNA的482 bp特异性片段进行扩增,以检测鼠体钩端螺旋体感染情况;抽取不同月份的15份阳性扩增产物进行纯化,用双脱氧终止法测序,并利用Mega 4.0软件与Genebank中已知的国内外菌株基因序列进行比对及系统发育分析.结果 在捕捉到的356只鼠中,红背(鼠平)和黑线姬鼠所占比例较大,分别为39.3%(140/356)和36.0%(128/356).所有鼠中共检测到钩端螺旋体阳性39只,感染率为11.0%,除褐家鼠外,其他鼠种均有感染,黑线姬鼠、红背鼾、东方田鼠、花鼠和大林姬鼠的感染率分别为9.4% (12/128)、12.9%(18/140)、10.8%(7/65),差异无统计学意义(x2=1.92,P>0.05).4月份未检测到感染疫鼠,5、6、7、8、9和10月份的感染率分别为5.6%(4/72)、8.8%(5/57)、12.8%(5/39)、9.8%(5/51)、33.3%(11/33)和22.5% (9/40),差异有统计学意义(x2=32.92,P<0.05);黑瞎子岛鼠群感染的钩端螺旋体在同一进化支上,相似度为97.1%~99.6%,与澳大利亚的菌株U90865在进化上最为相近,相似度>96.3%.结论 该地区鼠群中已存在钩端螺旋体的感染,所感染钩体在进化上相似,且存在季节性差异,而对宿主的选择性不明显.%Objective To study the infection status of Leptospira in rodents on Heixiazi island Heilongjiang province in 2011.Methods A total of 356 rodents were captured by night trap on the Heixiazi island from April to October 2011.The kidney tissue samples were collected by asepsis operation and the genomic DNA were extracted from them.Leptospira strains were confirmed by polymerase chain reaction (PCR) amplification of the 482 bp 23 S rDNA gene.Fifteen PCR

  17. Comparative study of bupivacaine 0.25% vs 0.375% Levobupivacaine spinal anesthesia for cesarean Section

    Directory of Open Access Journals (Sweden)

    Pérez-Guzmán Carlos Andrés

    2011-06-01

    (PACU, allowing a rapid contact between mother and baby, promoting their emotionalties and newborn care, and a timely transfer to a warmer room for both. Patientshad a prompt and adequate motor and sensory recovery while maintaining qualityof anesthetic technique, and therefore there was no agglomeration of patients aftersurgery in recuperation room; in addition, costs of this problem decreased, as well asoperating room time, asepsis and transfer of patients time, among others, benefitinghealth insurance companies and health care institutions.RESUMENDurante los decenios recientes se ha observado el perfeccionamiento de la anestesiaregional como el mejor método para cesáreas, por lo cual existe un constante interésinvestigativo para obtener la dosis óptima que pueda abolir las complicaciones inherentesde la técnica raquídea. En las gestantes sometidas a cesárea bajo anestesia raquídeacon dosis convencionales, los cambios hemodinámicos suceden abruptamente, lo quelleva a manifestaciones clínicas y complicaciones materno-fetales relacionadas con lahipotensión arterial como la hipoxemia, la acidosis fetal y la inadecuada adaptaciónneonatal, que por sus consecuencias, adquieren un interés médico especial en eldiagnóstico precoz y el tratamiento inmediato.Objetivos: comparar la efectividad de una técnica de dilución de bupivacaína pesadaal 0,25% con una de dilución de levobupivacaína pesada al 0,375%, en términos decalidad de la anestesia y condiciones clínicas de las paciente en los primeros 15 minutosa partir de la aplicación.Métodos: estudio de intervención, no enmascarado, donde se aplicaron dos técnicas dedilución anestésica, bupivacaína pesada al 0,25% y levobupivacaína pesada al 0,375%,a pacientes con indicación de cesárea electiva o urgente, en una institución de salud deCartagena, Colombia, entre junio de 2009 y junio de 2010. La técnica fue asignada demanera aleatoria para cada paciente, previo a su aplicación se identificaron

  18. Medida do volume da úlcera cutânea na leishmaniosetegumentar

    Directory of Open Access Journals (Sweden)

    Dalmo Correia

    1996-12-01

    skin surface transverse and longitudinal diameters. The proposal is to mould the cavity, after local asepsis with fresh water plus soap, with a gelatinous plastic which contains silice, potassium alginate, calcium sulphate,magnesium oxide commercialized under the name of jeltrate® (Dentsply Laboratory, by solving 9-5g of jeltrate® in 20ml of fresh water and applying the gel on the ulcer which solidifies in 5 minutes. This mould is then filled with a self polymerising aciylic and its volume measured either by weight (by using an analytical balance - technique 1 - or by water displacement by applying Archimeds'principle - technique 2. We shoiu data in a field trial before and after 20 days treatment in 20 patients using three different schedules as follows: 7 received pentamidine isethionate, 7 patients received aminosidine sulphate and 6 received meglumine antimoniate. Tloe results point out that there was a uniforme reduction of ulcer volume occurred during this period in the three groups, in both technique. Regarding the therapeutic schedules we are sure that there was a significant statistical difference between the three schedules using the TStudent Test, which showed that aminosidine sulphate produced a better volume reduction of the ulcer than the other drugs. Serial moulds reflect clinical healing and ai'e a permanent record. We conclude that the measure of the volume of the skin ulceration can be usefull in the therapeutic evaluation, as a practical and cheap procedure, and 7nay be used in field trials..