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Sample records for cava superior una

  1. Pseudodisplacements of superior vena cava catheter in the persistent left superior vena cava

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    Jantsch, H.; Draxler, V.; Muhar, U.; Schlemmer, M.; Waneck, R.

    1983-01-01

    Pseudodisplacement of a left sided superior vena cava catheter in a persistent superior vena cava may be expected in adults in 0,37% and in a group of children with congenital heart disease in 2,5%. Embryology, anatomy and clinical implications is discussed on the basis of our own cases. The vena cava superior sinistra persitents is depending on a sufficient calibre a suitable vessel for a superior cava catheter.

  2. Leiomyosarcoma of the superior vena cava.

    Science.gov (United States)

    de Chaumont, Arthus; Pierret, Charles; de Kerangal, Xavier; Le Moulec, Sylvestre; Laborde, François

    2014-08-01

    Leiomyosarcoma of the superior vena cava is a very rare tumor and only a few cases have been reported, with various techniques of vascular reconstruction. We describe a new case of leiomyosarcoma of the superior vena cava in a 61-year-old woman with extension to the brachiocephalic arterial trunk. Resection and vascular reconstruction were performed using, respectively, polytetrafluoroethylene and polyethylene terephtalate vascular grafts.

  3. Endovascular treatment of superior vena cava syndrome

    DEFF Research Database (Denmark)

    Duvnjak, Stevo; Andersen, Poul Erik

    2011-01-01

    Abstract AIM: The aim of this study was to report our experience with palliative stent treatment of superior vena cava syndrome. METHODS: Between January 2008 and December 2009, 30 patients (mean age 60.7 years) were treated with stents because of stenosed superior vena cava. All patients presented...... there was an immediate clinical improvement with considerable reduction in the edema of upper extremities and head. There was, however, continous dyspnea in five patients (17%) and two patients (7%) had persistent visible collateral venous circulations on the upper chest. There were no stent associated complications...

  4. Coronary artery bypass and superior vena cava syndrome.

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    Thomas, T V; Masrani, K; Thomas, J.L.

    1999-01-01

    Superior vena cava syndrome is the obstruction of the superior vena cava or its main tributaries by benign or malignant lesions. The syndrome causes edema and engorgement of the vessels on the face, neck, and arms, nonproductive cough, and dyspnea. We discuss the case of a 48-year-old obese diabetic woman who was admitted with unstable angina. She had previously been diagnosed with superior vena cava syndrome. Urgent coronary artery bypass grafting was necessary Although thousands of coronary...

  5. Superior Vena Cava Thrombosis in a Case of Lung Adenocarcinoma

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    Santanu Ghosh

    2013-01-01

    Full Text Available Superior vena cava syndrome is a common presentation of bronchogenic carcinoma. The mechanism of obstruction is by compression of superior vena cava by the bronchogenic tumor itself or enlarged mediastinal lymph nodes. However obstruction due to intravascular thrombosis is extremely uncommon. Here, we report a rare case of a 65-year-old male smoker who presented with superior vena cava syndrome and bilateral pleural and pericardial effusion with thrombotic occlusion of the superior vena cava in adenocarcinoma of the lung. He was given chemotherapy with carboplatin and gemcitabine with anticoagulant therapy.

  6. Fatal pericardial tamponade after superior vena cava stenting.

    NARCIS (Netherlands)

    Ploegmakers, M.J.M.; Rutten, M.J.C.M.

    2009-01-01

    We discuss a fatal complication of percutaneous superior vena cava (SVC) self-expandable stent placement in a patient with superior vena cava syndrome (SVCS). The SVCS was caused by a malignant mediastinal mass with total occlusion of the SVC. Twenty-four hours after the procedure, the patient died

  7. Fatal pericardial tamponade after superior vena cava stenting.

    NARCIS (Netherlands)

    Ploegmakers, M.J.M.; Rutten, M.J.C.M.

    2009-01-01

    We discuss a fatal complication of percutaneous superior vena cava (SVC) self-expandable stent placement in a patient with superior vena cava syndrome (SVCS). The SVCS was caused by a malignant mediastinal mass with total occlusion of the SVC. Twenty-four hours after the procedure, the patient died

  8. Superior vena cava syndrome in hemodialysis patient

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    Azeb Molhem

    2011-01-01

    Full Text Available Obstruction of blood flow in the superior vena cava (SVC results in symptoms and signs of SVC syndrome. SVC obstruction can be caused either by invasion or external compression of the SVC by contagious pathologic processes involving the right lung, lymph nodes, and other mediastinal structures, or by thrombosis of blood within the SVC. Occasionally, both mechanisms co-exist. We hereby report a case of a 28-year-old male, Saudi patient who was diagnosed with end-stage renal disease and was maintained on regular hemodiaysis via right jugular vein dual lumen catheter for ten months. Three years later, the patient presented with signs and symptoms suggestive of SVC obstruction that was successfully managed with SVC stenting.

  9. Right superior vena cava draining into the left atrium

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    Calcagni, Giulio; Sidi, Daniel; Bonnet, Damien [University Rene Descartes-Paris 5, Department of Paediatric Cardiology, Hopital Necker-Enfants Malades, Paris (France); Batisse, Alain [Institut de Puericulture et de Perinatalogie, Paris (France); Vouhe, Pascal [University Rene Descartes-Paris 5, Department of Paediatric Cardiac Surgery, Hopital Necker-Enfants Malades, Paris (France); Ou, Phalla [University Rene Descartes-Paris 5, Department of Paediatric Cardiology, Hopital Necker-Enfants Malades, Paris (France); University Rene Descartes-Paris 5, Department of Pediatric Radiology, Hopital Necker-Enfants Malades, Paris (France)

    2008-08-15

    The right superior vena cava draining into the left atrium is a rare malformation causing cyanosis and clubbing in patients in whom no other signs of congenital heart defect are present. Diagnosis may be difficult as cyanosis may be mild and the anomaly is not always easily detectable by echocardiography. For this reason we report a 13-month-old male in whom we confirmed the clinical and echocardiographic suspicion of anomalous drainage of the right superior vena cava using multidetector CT. This allowed successful surgical reconnection of the right superior vena cava to the right atrium. (orig.)

  10. [Superior vena cava syndrome--surgical solution--case report].

    Science.gov (United States)

    Galie, N; Vasile, R; Savu, C; Petreanu, C; Grigorie, V; Tabacu, E

    2010-01-01

    The patient of 52-year-old smoker was admitted in emergency with headaches, dyspnea, oedema and cyanosis of the cephalic extremity and of the superior members. This signs and symptoms suggest a superior vena cava sindrom. Thoracic CT scan shows the thrombosis of the superior vena cava and a tumor localized in the Bariety's Lodge of about 30/40 mm witch is around the right lateral wall of the traheea.This tumor is also tangent to the superior the superior vena cava. The patient was operated by total median sternotomy. By this approach we performed a complete excision of the mediastinal tumor mass. After that we effected a longitudinal cavotomy, we took out the endoluminal clot and we sutured the superior vena cava. The histological diagnosis of the mediastinal tumor was adenocarcinoma tubular-papillary moderately differentiated. The evolution post operative period was favorable the superior vena cava sindrom was a complet remission. The thoracic CT scan control after 9 months later didn't show a local relapse and blood flow was normally throw the superior vena cava.

  11. Coronary artery bypass and superior vena cava syndrome.

    Science.gov (United States)

    Thomas, T V; Masrani, K; Thomas, J L

    1999-01-01

    Superior vena cava syndrome is the obstruction of the superior vena cava or its main tributaries by benign or malignant lesions. The syndrome causes edema and engorgement of the vessels on the face, neck, and arms, nonproductive cough, and dyspnea. We discuss the case of a 48-year-old obese diabetic woman who was admitted with unstable angina. She had previously been diagnosed with superior vena cava syndrome. Urgent coronary artery bypass grafting was necessary Although thousands of coronary artery bypasses are performed every year, there are not many reports on patients with superior vena cava syndrome who successfully undergo cardiopulmonary bypass and coronary artery grafting with an internal mammary artery as the conduit. The results of the case and alternative recommended methods are discussed.

  12. Veia cava superior esquerda anômala com ausência de veia cava superior direita: achados de imagem Persistent left superior vena cava with absent right superior vena cava: image findings

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    Cyrillo Rodrigues de Araújo Júnior

    2003-10-01

    Full Text Available A persistência da veia cava superior esquerda com ausência da veia cava superior direita é uma anomalia rara, com menos de 150 casos descritos na literatura. A não-obliteração e regressão da veia cardinal anterior esquerda durante o desenvolvimento embriológico promove uma variação sistêmica de retorno venoso ao coração, com persistência da veia cava superior esquerda. Sua incidência varia de 0,3% em pacientes sem alterações cardíacas congênitas concomitantes a 4,3% naqueles com cardiopatias. Na maioria das vezes coexiste a veia cava superior direita, porém se houver regressão e degeneração da veia cardinal anterior direita, implicará a sua ausência e a drenagem venosa para o coração será feita pela veia cava superior esquerda ao átrio direito, através do seio coronariano. Mostramos um caso de um paciente submetido a radiografia de tórax e tomografia computadorizada para avaliação de doença pulmonar obstrutiva crônica, tendo como achado a persistência da veia cava superior esquerda com ausência da direita, sem qualquer cardiopatia associada e com a drenagem cardíaca sendo feita, através do seio coronariano, para o átrio direito.Persistent left superior vena cava with absent right superior vena cava is a rare anomaly, with less than 150 cases reported in the literature. Congenitally persistent left superior vena cava is the most common variant of systemic venous return to the heart, resulting embryologically from failure of the left anterior cardinal vein to become obliterated. Its incidence varies from 0.3% in patients with otherwise normal heart to 4.3% in patients with congenital heart disease. In the majority of the patients, a right superior vena cava is present as well, but rarely the right anterior cardinal vein degenerates resulting in the absence of the normal right superior vena cava. The blood from the right side is carried by the persistent left superior vena cava to the right atrium through the

  13. Partial anomalous pulmonary venous connection to the superior vena cava.

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    Aramendi, José I; Rey, Estibaliz; Hamzeh, Gadah; Crespo, Alejandro; Luis, Maite; Voces, Roberto

    2011-04-01

    We describe the surgical technique of reimplantation of the right superior pulmonary vein into the left atrium in 2 patients with partial anomalous pulmonary venous connection to the superior vena cava without atrial septal defect. A right axillary minithoracotomy is done through the fourth intercostal space. The pulmonary vein is detached from its origin in the superior vena cava. This is sutured with 6-0 reabsorbable polydioxanone suture (Ethicon, Somerville, NJ). A lateral clamp is applied to the left atrium, and the pulmonary vein is reimplanted. The patient is extubated in the operating room. Neither cardiopulmonary bypass nor blood transfusion was required. It is simple, safe, and reproducible. Copyright © 2011 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.

  14. Agenesia de cava superior associada a bloqueio atrioventricular de 3º grau Agenesis of the right superior vena cava associated with total heart block

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    Gustavo J. Ventura Couto

    2008-03-01

    Full Text Available A persistência de veia cava superior esquerda com ausência da veia cava superior é uma anomalia rara, principalmente quando associada a bloqueio atrioventricular de 3º grau. Relatamos o caso de uma paciente, na qual durante implante de marca-passo definitivo, para a correção de bloqueio atrioventricular total, foi detectada presença de veia cava superior esquerda com suspeição de ausência de veia cava superior, o que levou ao emprego de técnica diferenciada para fixação do eletrodo ventricular. Para confirmação da provável agenesia, foram realizados diversos exames complementares de imagem, demonstrando-se a dificuldade no diagnóstico da síndrome aqui descrita.The superior left vena cava with the absent superior vena cava is a rare abnormality, especially when associated with total heart block. We report a case of a patient in which the presence of superior left vena cava and the absence of the superior vena cava was detected during the implantation of a pacemaker for the correction of a total heart block, which led us to use a different technique for the fixation of the ventricular electrode. To confirm the supposed absence, several image exams were made showing the difficulty on the diagnosis of the described syndrome.

  15. Combined Double Sleeve Lobectomy and Superior Vena Cava Resection for Non-small Cell Lung Cancer with Persistent Left Superior Vena Cava

    Institute of Scientific and Technical Information of China (English)

    Daxing ZHU; Xiaoming QIU; Qinghua ZHOU

    2015-01-01

    A 65-year-old man with right central type of lung squamous carcinoma was admitted to our department. Bronchoscopy displayed complete obstruction of right upper lobe bronchus and inifltration of the bronchus intermedius with tumor. Chest contrast computed tomography revealed the tumor invaded right pulmonary artery, superior vena cava, and the persistant letf superior vena cava lfowed into the coronary sinus. hTe tumor was successfully removed by means of bronchial and pulmonary artery sleeve resection of the right upper and middle lobes combined with resection and reconstruction of superior vena cava (SVC) utilizing ringed polytetralfuoroethylene gratf. To the best of our knowledge, this was the ifrst report of complete resection of locally advanced lung cancer involving superior vena cava, right pulmonary artery trunk and main bronchus with persistant letf superior vena cava.

  16. Síndrome de veia cava superior Superior vena cava syndrome

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    SAMUEL ZUÍNGLIO DE BIASI CORDEIRO

    2002-09-01

    Full Text Available A obstrução ao fluxo sanguíneo na VCS e suas manifestações clínicas têm hoje como causa principal o câncer de pulmão. A história relata que no século XVIII a sífilis e a tuberculose eram responsáveis por 40% dos casos conhecidos. O conhecimento das alterações hemodinâmicas compreendidas nesta síndrome assim como a apuração das técnicas de diagnóstico de imagem e de citopatologia permitem hoje que o médico possa tratar de seu paciente com mais segurança e conforto do que há 10 anos. A TC contrastada e a RM auxiliam no diagnóstico de localização da obstrução e técnicas mais antigas como a cavografia puderam ser abandonadas. O diagnóstico de obstrução da VCS e o estudo por Doppler realizado à beira do leito em muito contribuem para a realização de procedimentos de desobstrução como a angioplastia transluminal percutânea nos casos de trombose ou estenose do vaso. Também a utilização de próteses como PTFE é de importância fundamental na condução de casos de lesão traumática da VCS durante cirurgias para câncer pulmonar ou mediastinal. No campo da radioterapia, a técnica de fracionamento permite que altas doses de irradiação sejam administradas aos pacientes portadores de neoplasias malignas, com benefícios em 70% dos casos.Lung cancer is now the main cause of blood flow obstruction in the superior vena cava and of its clinical manifestations. History tells that in the 18th Century, syphilis and tuberculosis were responsible for 40% of the known cases. The knowledge of hemodynamic changes seen in this syndrome and the improvement of diagnostic and cytopathologic techniques allow for a safer and more comfortable treatment of the patient than 10 years ago. Contrast CT and MR added to the identification and location of the obstruction, and older techniques such as cavography could be abandoned. SVC obstruction diagnosis and Doppler studies carried out at the bed of the patient contribute to

  17. Concomitant Persistent Left Superior Vena Cava and Horseshoe Kidney

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    Faraz Jaffer

    2015-01-01

    Full Text Available Persistent left superior vena cava (PLSVC and horseshoe kidney (HSK are common congenital abnormalities; however presence of both in the same person is extremely rare. A patient with hepatitis C cirrhosis awaiting transplant presented with worsening liver dysfunction, diagnosed with acute renal failure secondary to hepatorenal syndrome, and required X-ray fluoroscopy guided tunneled venous catheter placement for hemodialysis. Review of imaging studies demonstrated coexistence of PLSVC and HSK. PLSVC in adulthood is usually incidental with the most common drainage pattern being without physiologic dysfunction. Isolated horseshoe kidney is still the most common of renal fusion anomalies; however etiology of coexistent PLSVC remains unknown.

  18. Complication of Right Subclavian Vein Catheterization: Superior Vena Cava Perforation

    OpenAIRE

    ÇELİK, B.; KOCAMANOĞLU, S.; BÜYÜKKARABACAK, Y. B.; SARIHASAN, E.

    2013-01-01

    Central venous catheterization is an invasive approach which is routinely used in thoracic surgery operations. Pneumothorax and hemothorax are among the most frequent complications. Vena cava superior (VCS) perforation (0.5 %) is very rarely observed. A 65-year-old male patient was admitted to the hospital with the complaint of cough. With the examinations performed, he was diagnosed with epidermoid lung cancer located in the right lower lobe of the lung (Stage IB, T2N0M0). To prepare the pat...

  19. An unusual cause of intraoperative acute superior vena cava syndrome

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    Adam W Amundson

    2013-01-01

    Full Text Available Acute intraoperative superior vena cava (SVC syndrome is an exceedingly rare complication in the cardiac surgical population. We describe the case of a 71-year-old female undergoing multi-vessel coronary artery bypass grafting who developed acute intraoperative SVC syndrome following internal thoracic artery harvest retractor placement. Her symptoms included severe plethora, facial engorgement and scleral edema, which was associated with hypotension and severe elevation of central venous pressure. Transesophageal echocardiography was crucial in the diagnosis, management, and optimal retractor placement ensuring adequate SVC flow. Potential causes of intraoperative SVC syndrome are reviewed as well as management options.

  20. Recurrent cerebral venous infarcts and superior vena cava obstruction: case report

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    Bozzao, A. [Department of Radiology, University of Rome ``Tor Vergata``, Rome (Italy)]|[Istituto di Radiologia, Ospedale S. Eugenio, Piazzale dell`Umanesimo 10 I-00144 Roma (Italy); Gallucci, M. [Department of Neuroradiology, University of L`Aquila, L`Aquila (Italy); Marsili, L. [Department of Neuroradiology, University of L`Aquila, L`Aquila (Italy); Cerone, G. [Department of Neurology, Collemaggio Hospital, L`Aquila (Italy)

    1997-06-01

    We report a patient with repeated venous infarcts in the occipital lobe and occlusion of the superior vena cava. The pathogenetic relationships between the superior vena cava occlusion and the brain infarcts are discussed. High pressure in the superior venous territory and incomplete patency of the transverse sinus are probably responsible for the venous infarcts. (orig.). With 4 figs.

  1. Medical image of the week: persistent left superior vena cava

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    Hammode E

    2014-10-01

    Full Text Available No abstract available. Article truncated after 150 words. A 19 year old man with acute lymphocytic leukemia was admitted to the ICU with septic shock. Due to areas of cellulitis on the right side of the chest and neck and femoral venous thrombi, a left subclavian central access was attempted. The chest x-ray obtained after line placement is shown below (Figure 1. Blood gas done from the line was consistent with venous blood and venous tranduction was seen. A CT of the chest (Figure 2 confirmed the diagnosis of persistent left superior vena cava (PLSVC. A persistent left superior vena cava is the most common congenital thoracic venous anomaly, seen in 0.3-0.5% of the population (1. Incidence is increased in patients with congenital heart disease to 5%. In most patients a right sided SVC is also present; hence the term SVC duplication has also been used. Embryologically a PLSVC is formed when the left anterior cardinal vein is ...

  2. Bilateral breast swelling secondary to superior vena cava obstruction and subclavian vein thrombosis

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    Ariadne Mayumi Yamada

    2013-07-01

    Full Text Available Superior vena cava syndrome is defined by a set of signs and symptoms secondary to superior vena cava obstruction caused principally by malignant diseases. The present report describes the case of an unusual clinical manifestation of this syndrome with bilateral breast swelling, and emphasizes the relevance of knowledge on mammographic signs of systemic diseases.

  3. A new Nitinol stent for use in superior vena cava syndrome

    DEFF Research Database (Denmark)

    Andersen, Poul Erik; Midtgaard, Annette; Brenøe, Anne-Sofie;

    2015-01-01

    AIM: The aim of the study was to assess the early clinical experience with the Zilver Vena stent in treating patients with malignant superior vena cava syndrome. METHODS: Demographic, procedural, and follow-up data of 12 patients (seven women; mean age 69 years) treated for superior vena cava syn...

  4. Mediastinal seminoma presenting with superior vena cava syndrome.

    Science.gov (United States)

    Wanous, Amanda; McPhail, Ian R; Quevedo, J Fernando; Sandhu, Nicole P

    2017-06-08

    We present a rare cause of superior vena cava syndrome (SVC) in a previously healthy male aged 31 years. Malignancy was suspected due to unintentional weight loss and childhood exposure to radioactive fallout from a nuclear facility accident. A very large anterior mediastinal mass was identified and demonstrated to be an extragonadal seminoma. Extragonadal germ cell tumours are rare tumours with a high potential for cardiovascular, pulmonary and vascular sequelae. Studies have documented an increased risk of developing seminoma in patients with radioactive exposure. Chemotherapy was initiated, during which the patient experienced progressive and new symptoms, found to be due to extensive thromboembolic disease, which responded well to anticoagulation. Seventy-two months after completing chemotherapy, without need for surgical management, he remains free of the disease. © BMJ Publishing Group Ltd (unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  5. Catheter-Induced Thrombosis of the Superior Vena Cava

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    Elio Venturini

    2012-01-01

    Full Text Available There has been an increase in the use of central venous catheters (CVCs in clinical practice. One of the most dangerous complications associated with their use is symptomatic or asymptomatic thrombosis (T, sometimes associated with superior vena cava (SVC syndrome, resulting from impaired venous drainage. The right heart clots can induce an increased risk of mortality due the potential pulmonary embolism (PE. We report a case of asymptomatic 83-year-old woman in whom the thrombosis was detected after an echocardiogram. Echocardiography demonstrated a cardiac mass, and the T was confirmed by (magnetic resonance imaging MRI. The clinical scenario, a high index of suspicion and routine use of echocardiogram in patients with CVC, can lead to a correct diagnosis, preventing dangerous complications.

  6. The superior vena cava syndrome caused by malignant disease

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    Eren, Suat [Department of Radiology, Faculty of Medicine, Atatuerk University, 25240 Erzurum (Turkey)]. E-mail: suateren@atauni.edu.tr; Karaman, Adem [Department of Radiology, Faculty of Medicine, Atatuerk University, 25240 Erzurum (Turkey); Okur, Adnan [Department of Radiology, Faculty of Medicine, Atatuerk University, 25240 Erzurum (Turkey)

    2006-07-15

    Objective: The superior vena cava (SVC) obstruction by malignant diseases is either by direct invasion and compression or by tumour thrombus of the SVC. Whatever is its cause, obstruction of the SVC causes elevated pressure in the veins draining into the SVC and increased or reversed blood flow through collateral vessels. Severity of the syndrome depends on the collateral vascular system development. Therefore, imaging of the collateral veins with variable location and connection is important in determining the extension and management of the disease. Our aims are to describe collateral vessels of the superior vena cava syndrome (SVCS) related with the malignant diseases and to assess the ability of multi-detector row CT with multiplanar and 3D volume rendering techniques in determining and describing collateral circulations. Materials and methods: We present CT angiography findings of seven patients with small cell carcinoma of the lung (n = 2), squamous cell carcinoma of the lung (n = 3), Hodgkin disease of the thorax (n = 1), and squamous cell carcinoma of the oesophagus (n = 1). The patients received contrast-enhanced CT scans of the chest and abdomen on a multi-detector row CT during breath holding at suspended inspiration. Results: CT images revealed the cause and level of the SVC obstruction in all patients with axial and multiplanar reconstructed images. The SVC showed total obstruction in five patients and partial obstruction in two patients. The most common experienced collateral vessels were azygos vein (6), intercostal veins (6), mediastinal veins (6), paravertebral veins (5), hemiazygos vein (5), thoracoepigastric vein (5), internal mammary vein (5), thoracoacromioclavicular venous plexus (5), and anterior chest wall veins (5). While one case showed the portal-systemic shunt, V. cordis media and sinus coronarius with phrenic veins were enlarged in two cases, and the left adrenal vein was enlarged in a patient. In one case, the azygos vein with reversed

  7. Vena cava superior izquierda persistente: Implicaciones en la cateterización venosa central Persistent left superior vena cava: Implications in central venous catheterisation

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    G. Lacuey

    2009-04-01

    Full Text Available La colocación de catéteres centrales por vía venosa subclavia y yugular se puede complicar con la canalización de una arteria o de una vía venosa aberrante. La anomalía más frecuente del desarrollo embriológico de la vena cava es la persistencia de la vena cava superior izquierda (VCSI. La implantación de catéteres en la VCSI se puede sospechar por el recorrido anómalo del mismo en la radiografía de tórax. La gasometría y la curva de presión del vaso permiten descartar una cateterización arterial. La confirmación diagnóstica se obtiene mediante angiografía, ecocardiografía, tomografía computerizada o cardio-resonancia. El médico que implanta habitualmente catéteres venosos centrales, debe estar familiarizado con la anatomía del sistema venoso, sus variantes y sus anomalías, ya que su presencia puede influir en el manejo del paciente.The placement of central catheters through the subclavian and jugular venous path can be complicated by the cannulation of an artery or an aberrant venous path. The most frequent anomaly of the embryological development of the caval vein is the persistence of the left superior vena cava (LSVC. The implantation of catheters in the LSVC can be suspected by its anomalous route in thorax radiography. Gasometry and the pressure curve of the vessel make it possible to rule out an arterial catheterisation. Diagnostic confirmation is obtained through angiography, echocardiography, computerised tomography or cardiac resonance. The doctor who regularly implants central venous catheters must be familiar with the anatomy of the venous system and its variants and anomalies, since their presence might influence the handling of the patient.

  8. Congenital absence of the azygos vein with persistent left superior vena cava: A case report

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    Yim, Young Hee; Yi, Jeong Geun; Song, In Young; Park, Jeong Hee [Dept. of Radiology, Konkuk University School of Medicine, Seoul (Korea, Republic of)

    2014-03-15

    Absence of the azygos vein is a very rare variant of venous tributary arrangement which has been reported only in few cases so far. We hereby introduce the chest radiographic and computed tomographic findings of the congenital absence of the azygos vein with bilateral superior vena cava, incidentally detected during a follow-up for rectal cancer. The hemiazygos vein is drained into persistent left superior vena cava via left superior intercostal vein, so called the 'aortic nipple'.

  9. Gallbladder cancer with tumor thrombus in the superior vena cava

    Institute of Scientific and Technical Information of China (English)

    Sandeep Batra; Dinesh Chandra Doval; Ullas Batra; Pandalanghat Suresh; Amit Dhiman; Vineet Talwar

    2010-01-01

    BACKGROUND: Gastrointestinal cancers, especially pancreato-biliary cancers, are frequently associated with or are complicated by thromboembolic phenomena due to hypercoagulability and/or altered venous drainage, especially of the abdomen and lower limbs. This report describes an unusual and interesting case of gallbladder carcinoma developing a viable tumor thrombus in the superior vena cava (SVC) with resultant SVC obstruction, while on geiftinib-based anti-epidermal growth factor receptor (EGFR) therapy. METHODS: A 60-year-old woman was incidentally diagnosed to have gallbladder cancer on cholecystectomy. She had disease recurrence and received systemic chemotherapy followed by geiftinib-based anti-EGFR therapy. Subsequently, while on geiftinib-based therapy, she presented with clinical signs and symptoms suggestive of SVC thrombosis. RESULTS: A whole body PET scan revealed a metabolically active tumor thrombus in the SVC, besides other sites of metabolically active disease inclusive of the lung parenchyma, lymph nodes and abdomen. She was treated with anti-thrombotics and external beam radiotherapy directed to the SVC thrombus leading to symptomatic relief. She continues to survive on the day of writing this report. CONCLUSIONS: This rare complication, though theoretically possible, is unreported because of the short overall survival of advanced gallbladder cancer patients. This highlights that with the availability of better chemotherapeutic/biotherapeutic agents for increasing in the lifespan of cancer patients, we may come across such cases more frequently in the future.

  10. Isolated Right Superior Vena Cava Drainage into the Left Atrium Diagnosed Noninvasively in the Peripartum Period

    Science.gov (United States)

    Baggett, Charles; Skeen, Shawn J.; Gantt, D. Scott; Trotter, Bradley R.; Birkemeier, Krista L.

    2009-01-01

    Isolated right superior vena cava drainage into the left atrium is an extremely rare cardiac anomaly, especially in the absence of other cardiac abnormalities. Only 28 of 5,127 reported consecutive congenital cardiac cases involved superior vena cava drainage into the left atrium, and all were associated with other cardiac anomalies. Of 19 reported cases of right superior vena cava drainage into the left atrium, most patients have been children who were experiencing mild hypoxemia and cyanosis. Herein, we describe the case of a 34-year-old woman who presented with asymptomatic hypoxemia in the peripartum period. She was diagnosed to have isolated drainage of the right superior vena cava into the left atrium. To the best of our knowledge, this is the 1st reported instance of such diagnosis by use of noninvasive imaging only, without cardiac catheterization. We also review the medical literature that pertains to our patient's anomaly. PMID:20069093

  11. A new Nitinol stent for use in superior vena cava syndrome

    DEFF Research Database (Denmark)

    Andersen, Poul Erik; Midtgaard, Annette; Brenøe, Anne-Sofie

    2015-01-01

    at the time of stent deployment. RESULTS: All patients had superior vena cava obstruction and clinical superior vena cava syndrome caused by malignant expansive mediastinal disease (eight patients non-small cell lung cancer and four small cell lung cancer). The technical success with deployment of the stents...... syndrome with in all 21 Zilver Vena stents between March 2012 and October 2013 were retrospectively reviewed. All cavographies and contrast enhanced CT related to the treatment and during follow-up were evaluated and the patients had clinical follow-up until dead. They were all in terminal state......AIM: The aim of the study was to assess the early clinical experience with the Zilver Vena stent in treating patients with malignant superior vena cava syndrome. METHODS: Demographic, procedural, and follow-up data of 12 patients (seven women; mean age 69 years) treated for superior vena cava...

  12. [Catheter in the superior vena cava for hemodialysis as a last resort in superior hemithorax].

    Science.gov (United States)

    Restrepo Valencia, C A; Buritica Barragán, C M; Arango, A

    2010-01-01

    We report four patients with chronic kidney disease undergoing haemodialysis therapy, which had exhausted conventional venous access (internal jugular, subclavian) and non-conventional access (axillary, innominate) in the upper hemithorax for haemodialysis. This was primarily due to thrombosis of these veins caused by previous catheterisation. These patients did not qualify for peritoneal dialysis. Using the technique recommended by Archundia et al., 4 indwelling catheters were implanted directly in the superior vena cava in each of the patients with subsequent subcutaneous tunneling. The catheters operated correctly and are currently permeable after being used for an average of 19 months.

  13. Bilateral agenesis of the superior vena cava associated with congenital hydrothorax.

    Science.gov (United States)

    Römer, S; Opgen-Rhein, B; Chaoui, R; Scheer, I; Czernik, C; Obladen, M

    2006-11-01

    Agenesis of the superior vena cava is a rare anomaly that is generally asymptomatic in the neonate. We report a male neonate with bilateral (total) agenesis of the superior vena cava with obstructed thoracic duct and subsequent congenital hydrothorax, anomalies that were detected by prenatal ultrasound at 25 weeks' gestation. The cardiac anomaly was confirmed by postnatal magnetic resonance angiography. The chylothorax disappeared with conservative therapy.

  14. Prenatal diagnosis of isolated interrupted inferior vena cava with azygos continuation to superior vena cava

    Directory of Open Access Journals (Sweden)

    Do Thi Cam Giang

    2014-01-01

    Full Text Available Absence of inferior vena cava is an uncommon congenital abnormality. It is usually associated with other structural anomalies, typically left isomerism. We report a case of interrupted inferior vena cava with azygos continuation diagnosed as an isolated finding during routine prenatal ultrasound scan, confirmed by post-natal echocardiography. Detailed ultrasound examination of the fetal anatomy failed to demonstrate other anomalies. The neonatal course of this fetus was uneventful.

  15. Percutaneous treatment of superior vena cava syndrome using metallic stents

    Energy Technology Data Exchange (ETDEWEB)

    De Gregorio Ariza, Miguel Angel; Gimeno, Maria Jose; Alfonso, Eduardo; Mainar, Antonio; Medrano, Joaquin; Lopez-Marin, Paloma [Department of Interventional Radiology, ' ' Lozano Blesa' ' University Hospital, Avda. San Juan Bosco 15, 50009 Zaragoza (Spain); Gamboa, Pablo [Division of Interventional Radiology, Ohio State University Hospital, Columbus, Ohio (United States); Tobio, Ricardo [Interventional Radiology, Clinica de la Zarzuela, Madrid (Spain); Herrera, Marcos [Division of Interventional Radiology, University of Minnesota, Minneapolis, Minnesota (United States)

    2003-04-01

    The purpose of this study was to evaluate the results of treatment of superior vena cava syndrome (SVCS) in patients with benign and malignant disease using expandable metallic stent. From January 1995 to April 2000, 87 expandable stents were implanted in 82 patients (59 men, 23 women; mean age 57.8 years, age range 39-79 years) for the treatment of SVCS. The SVCS was defined as symptomatic bilateral obstruction of venous drainage from head, neck and upper extremities. In 68 patients SVCS was due to malignant neoplasia, and in 14 cases it was due to benign aetiology. All patients were treated with expandable stent. We implanted 81 Wallstent prostheses and 6 Palmaz stents. Adjuvant thrombolysis was applied in 12 patients who required fibrinolysis. After recanalization, the stent was implanted in all cases in SVC (infra- or supra-azygos vein). All patients were treated with heparin of low molecular weight (HBPM) during 6 months. Patency was analyzed according to clinical symptoms and Doppler US or venograms exploration. Technical success was observed in all cases. Clinical success was reached in 78 of 82 patients (95.1%) (absence of symptoms in 2 or 3 days). Four patients suffered immediate thrombosis which required fibrinolitic treatment with a new prosthesis placement in 1 case. The follow-up for the malignant process was of 7.1 months (range 1-39 months) and in benign cases was 31.2 months (range 11-61 months). Sixty-two (91.1%) patients with malignancy died without SVCS symptomatology. All the patients with benign pathology are alive. Clinical primary patency in malignant cases was 87% with assisted patency of 96.2%. Endovascular therapy using metallic stent and thrombolysis is a successful method to treat SVCS due to benign or malignant aetiology. (orig.)

  16. Migration of central lines from the superior vena cava to the azygous vein

    Energy Technology Data Exchange (ETDEWEB)

    Haygood, T.M., E-mail: tamara.haygood@mdanderson.org [University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1475, Houston, TX 77030 (United States); Malhotra, K., E-mail: kmalhotra@mdanderson.org [University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1475, Houston, TX 77030 (United States); Ng, C., E-mail: cng@mdanderson.org [University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1475, Houston, TX 77030 (United States); Chasen, B., E-mail: beth.chasen@mdanderson.org [University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1475, Houston, TX 77030 (United States); McEnery, K.W., E-mail: kmcenery@mdanderson.org [University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1475, Houston, TX 77030 (United States); Chasen, M., E-mail: mchasen@mdanderson.org [University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1475, Houston, TX 77030 (United States)

    2012-01-15

    Aim: To report 11 cases of central venous access catheters migrating from the superior vena cava to the azygos vein in order to raise radiologists' awareness of this possibility. Materials and methods: This is a retrospective review of the clinical history and imaging of 11 patients whose central line migrated from the superior vena cava to the azygos vein. The time course of migration, access route of the catheters, outcome, and depth of placement in the superior vena cava were evaluated. Results: All of these catheters were placed from the left; six through the subclavian vein, four as PICC lines, and one from the left internal jugular vein. Seven of the catheters were originally positioned in the superior vena cava. Four of the catheters were originally positioned in the azygos vein and were repositioned into the superior vena cava at the time of placement. The time to migration ranged from 2 to 126 days, average 43 days. In three cases, the migration was not reported at the first opportunity, resulting in a delay in diagnosis ranging from 10 to 27 days. All but one of the catheters extended at least 3.5 cm (range 1.8-7 cm) below the top of the right mainstem bronchus when in the superior vena cava. Conclusion: Risk factors for migration into the azygos vein include placement from a left-sided approach and original positioning in the azygos vein with correction at placement. The depth of placement in the superior vena cava was not a protective factor. It is important to recognize migration because of the elevated risk of complications when central lines are placed in the azygos vein.

  17. Stenting of the Superior Vena Cava and Left Brachiocephalic Vein with Preserving the Central Venous Catheter in Situ

    Energy Technology Data Exchange (ETDEWEB)

    Isfort, Peter; Penzkofer, Tobias; Goerg, Fabian; Mahnken, Andreas H. [University Hospital RWTH Aachen, Aachen(Korea, Republic of)

    2011-10-15

    Stenting of the central veins is well established for treating localized venous stenosis. The techniques regarding catheter preservation for central venous catheters in the superior vena cava have been described. We describe here a method for stent implantation in the superior vena cava and the left brachiocephalic vein, and principally via a single jugular venous puncture, while saving a left sided jugular central venous catheter in a patient suffering from central venous stenosis of the superior vena cava and the left brachiocephalic vein.

  18. Superior vena cava syndrome in a patient with previous cardiac surgery: what else should we suspect?

    Directory of Open Access Journals (Sweden)

    Dolou Paraskevi

    2010-06-01

    Full Text Available Abstract Background Although mediastinal tumors compressing or invading the superior vena cava represent the major causes of the superior vena cava syndrome, benign processes may also be involved in the pathogenesis of this medical emergency. One of the rarest benign causes is a pseudoaneurysm developing in patients previously having heart surgery. Case report We present the case of a large pseudoaneurysm of the ascending aorta, five years after primary surgery, with a significant compression of the right mediastinal venous system causing superior vena cava syndrome, detected at chest CT angiography. Perioperative findings showed two rush out points both coming from the distal aortic suture line which was performed five years ago. The patient underwent reoperation under circulatory arrest facilitating safe exploration and repair of the distal anastomotic leaks Conclusion Enhanced chest CT should be always undertaken in all patients with superior vena cava syndrome, especially in those previously having cardiac or aortic surgery to correctly evaluate the presence of a pseudoaneurysm. Mass effect to the superior vena cava makes necessary an open surgical treatment of the pseudoaneurysm so as to concurrently resolve the right mediastinal venous system's compression. Surgery should be performed in terms of safe approach to avoid exsanguination and cerebral malperfusion.

  19. Persistent Left Superior Vena Cava Detected Incidentally after Pulmonary Artery Catheterization

    Directory of Open Access Journals (Sweden)

    Hyun Jeong Lee

    Full Text Available We present a case of pulmonary artery catheter (PAC placement through the right internal jugular vein, bridging vein and coronary sinus in a patient with previously unrecognized persistent left superior vena cava (LSVC and diminutive right superior vena cava. A 61-year-old male patient was scheduled for mitral valve repair for regurgitation. Preoperative transthoracic echocardiography revealed dilated coronary sinus, but no further evaluations were performed. During advancement of the PAC, right ventricular and pulmonary arterial pressure tracing was observed at 50 and 60 cm, respectively. Transesophageal echocardiography ruled out intracardiac knotting and revealed the presence of the PAC in the LSVC, entering the right ventricle from the coronary sinus. Diminutive right superior vena cava was observed after sternotomy. The PAC was left in place for 2 days postoperatively without any complications. This case emphasizes that the possibility of LSVC and associated anomalies should always be ruled out in patients with dilated coronary sinus.

  20. A Combination of Persistent Left Superior Vena Cava and Subaortic Discrete Membrane

    Directory of Open Access Journals (Sweden)

    Sait Demirkol

    2013-08-01

    Full Text Available A persistent left superior vena cava is the most common congenital anomaly involving the systemic veins. It occurs in approximately 0.5% of the general population and 3% to 10% of patients with other cardiovascular abnormalities including atrial septal defect, ventricular septal defect, bicuspid aortic valve, coarctation of aorta, and cor-triatriatum. A discrete subaortic membrane is a rare cause of subaortic stenosis in adult. It may present as in an isolated form as fibrous or fibromuscular ring below the aortic valve or in association with other congenital anomalies. This is the case of a persistent left vena cava superior associated with a subaortic discrete membrane.

  1. A new Nitinol stent for use in superior vena cava syndrome

    DEFF Research Database (Denmark)

    Andersen, Poul Erik; Midtgaard, Annette; Brenøe, Anne-Sofie;

    2015-01-01

    syndrome with in all 21 Zilver Vena stents between March 2012 and October 2013 were retrospectively reviewed. All cavographies and contrast enhanced CT related to the treatment and during follow-up were evaluated and the patients had clinical follow-up until dead. They were all in terminal state...... at the time of stent deployment. RESULTS: All patients had superior vena cava obstruction and clinical superior vena cava syndrome caused by malignant expansive mediastinal disease (eight patients non-small cell lung cancer and four small cell lung cancer). The technical success with deployment of the stents...

  2. Persistencia de la vena cava superior izquierda: Diagnóstico e importancia prenatal Persistency of the left superior caval vein: Diagnosis and its prenatal importance

    Directory of Open Access Journals (Sweden)

    Juan F Jaramillo

    2010-04-01

    Full Text Available Durante un ultrasonido obstétrico de rutina se deben realizar ciertos planos del corazón en los cuales no es complejo identificar un grupo de anomalías como la persistencia de la vena cava superior izquierda. Cuando se identifica una vena cava superior izquierda aislada, sin otras anomalías del corazón fetal, no existe ninguna repercusión perinatal. Su importancia radica en que un grupo considerable de estos casos se acompaña de cardiopatías congénitas y anomalías anatómicas y cromosómicas. En este artículo se describen nueve casos de vena cava superior izquierda persistente, al igual que las anomalías del corazón asociadas, como también las alteraciones extracardiacas encontradas.Certain heart fetal planes must be realized during a routine obstetric ultrasound in order to identify a group of anomalies such as the persistency of the left superior caval vein. When an isolated left superior venal vein is identified without any other anomaly of the fetal heart, it does not have any perinatal repercussion. Its importance lies in the fact that a considerable number of these cases are associated with a high incidence of congenital heart diseases and anatomic and chromosomal abnormalities. This article reports nine cases of persistency of the left superior caval vein as well as the associated heart abnormalities and the extra-cardiac alterations found.

  3. Mediastinal and pulmonary entomophthoromycosis with superior vena cava syndrome: case report Entomoftoromicose mediastinal e pulmonar com síndrome de veia cava superior: registro de caso

    Directory of Open Access Journals (Sweden)

    João Carlos Coelho Filiio

    1989-12-01

    Full Text Available The first case of mediastinal and pulmonary entomophthoromycosis with supe rior vena cava syndrome is reported. The patient presented with a history of edema of the face, neck and upper limbs as well as collateral circulation in the anterior wall of the chest. Histological examination of tissue from mediastinum revealed a granulomatous reaction with microabscesses surrounded by eosinophilic amorphous material and with broad hyphae in the center. Culture was not performed because a preliminary diagnosis of nonHodgkin's malignant lymphoma was made. Surgical correction of the obstructed area was performed and the patient was sucessfully treated with potassium iodide. The authors propose that mediastinal entomoph thoromycosis must be considered in the differential diagnosis of diseases causing superior vena cava syndrome in tropical and sub-tropical regions. This case enlarges the spectrum of clinical manifestations of the zigomycosis caused by Entomoph-thoraceae.O primeiro caso de entomoftoromicose mediastinal e pulmonar com síndorme de veia cava superior, é descrito. A paciente apresentou-se com historia de edema facial, cervical e de membros superiores, bem como circulação colateral na parede anterior do tórax. O estudo histopatológico do tecido do mediastino, próximo à veia cava, revelou reação granulomatosa com microabscesses, circundados por material amorfo, eosinofílico e com hifas largas no centro. Cultura não foi realizada porque o diagnóstico clínico foi de doença de Hodgkin ou de um linfoma não-Hodgkin. Correção cirúrgica da área obstruída foi realizada e a paciente tratada com iodeto de potássio, nas doses preconizadas, obtendo-se sucesso. Os autores propõem que a entomoftoro-micose mediastinal deva ser considerada no diagnóstico diferencial de doença causando síndrome de veia cava superior em regiões tropicais e subtropicais. Este caso aumenta o espectrum de manifestações clínicas das zigomicoses causadas

  4. Thrombosis caused by polyurethane double-lumen subclavian superior vena cava catheter and hemodialysis

    DEFF Research Database (Denmark)

    Wanscher, Maria Rørbæk; Frifelt, J J; Smith-Sivertsen, C

    1988-01-01

    During an 18-month period, 82 consecutive patients (37 women and 45 men), with a mean age of 50 yr (range 15 to 74), underwent hemodialysis with 91 polyurethane double-lumen subclavian superior vena cava catheters inserted via the right subclavian vein. Upon catheter removal, venograms were...

  5. Doença de Behçet cursando com trombose de veia cava superior Behçet's disease presenting with superior vena cava thrombosis

    Directory of Open Access Journals (Sweden)

    Otacílio Figueiredo da Silva Júnior

    2006-03-01

    Full Text Available A trombose venosa é o principal acometimento do sistema vascular na doença de Behçet, sendo uma complicação freqüente na evolução clínica dessa patologia, e está mais associada ao sexo masculino. Os autores relatam o caso de uma paciente do sexo feminino que apresentou início da doença há 3 anos com úlceras orais, além de úlceras genitais, e que vem cursando com episódios recorrentes de trombose venosa, sendo a primeira uma trombose venosa profunda no membro inferior direito; a segunda, de jugular interna esquerda; e, por último, uma trombose da veia cava superior.Venous thrombosis is the main hazard to the vascular system in Behçet's disease. It is a frequent complication throughout the clinical evolution of this illness, which is more associated with the male gender. The authors report the case of a female patient with disease onset 3 years ago, showing oral and genital ulcers presenting with recurring episodes of venous thrombosis. The first one was a deep venous thrombosis in the right leg; the second was in the left internal jugular vein; and finally a superior vena cava thrombosis.

  6. Treatment of pacemaker-induced superior vena cava syndrome by balloon angioplasty and stenting.

    LENUS (Irish Health Repository)

    Klop, B

    2011-01-01

    Superior vena cava (SVC) syndrome is a rare but serious complication after pacemaker implantation. This report describes three cases of SVC syndrome treated with venoplasty and venous stenting, with an average follow-up of 30.7 (±3.1) months. These cases illustrate that the definitive diagnosis, and the extent and location of venous obstruction, can only be determined by venography.

  7. MALIGNANT LYMPHOMA DEMONESTRATING SICK SINUS SYNDROME AND SUPERIOR VENA CAVA SYNDROME

    OpenAIRE

    S K Forouzannia; M h Abdollahi; Mirhosseini, S. J.; S H Moshtaghion; HOSSEINI, H; Jorat, M. V.; M Moeeni; M A Karimi-Zarchi

    2008-01-01

    "nReports which describe sick sinus syndrome due to malignant lymphoma have been rare and only eight cases have been reported until now. This is a case of sick sinus syndrome and superior vena cava syndrome secondary to invasion of occult malignant lymphoma of the lung in a 60 years old male. There were no symptoms or signs of malignancy before the first presentation with sick sinus syndrome. Patient was treated with implantation of a permanent pacemaker. SA node involvement by lymphoma ...

  8. Ecocardiografia transesofágica e diagnóstico intraoperatório de veia cava superior esquerda persistente Ecocardiografía transesofágica y diagnóstico intraoperatorio de vena cava superior izquierda persistente Transesophageal echocardiography and intraoperative diagnosis of persistent left superior vena cava

    Directory of Open Access Journals (Sweden)

    Alexander Alves da Silva

    2009-12-01

    de forma aislada en 0,5% de la población normal, sin embargo, en los pacientes con cardiopatía congénita llega a estar presente de un 3% a un 10% de los casos. El objetivo de este relato, fue presentar un caso de diagnóstico intraoperatorio con la ayuda de la ecocardiografía transesofágica y resaltar la importancia de su utilización de rutina en intervenciones quirúrgicas para la corrección de cardiopatía congénita. RELATO DEL CASO: Paciente del sexo masculino, 16 años, ASA II, con diagnóstico previo de comunicación interatrial (CIA, tipo seno venoso superior, con drenaje anómalo parcial de venas pulmonares, programado para la corrección quirúrgica de la cardiopatía. Después de la inducción de la anestesia general, se realizó el ecocardiograma transesofágico (ETE. El examen inicial mostró lo siguiente: dilatación de las cámaras cardiacas derechas, CIA tipo seno venoso superior de 17 milímetros, drenaje anómalo de la vena pulmonar superior derecha desembocando en la vena cava superior (VCS derecha, y dilatación del seno coronario, vislumbrándose así la posibilidad de la persistencia de la vena cava superior izquierda. Para la confirmación de la sospecha, se inyectaron en el acceso venoso del brazo izquierdo, 10 mL de solución fisiológica a 0,9% (haciendo el papel de "contraste" en el examen ecocardiográfico, e inmediatamente después, se visualizaron las micro burbujas pasando por el seno coronario, test positivo para el diagnóstico de VCS superior izquierda persistente. CONCLUSIONES: La ecocardiografía transesofágica de rutina en el intraoperatorio de pacientes con cardiopatía congénita, tiene una fundamental importancia como método auxiliar no solo para el cirujano, que muchas veces está influenciando directamente la técnica quirúrgica usada, sino también para el anestesiólogo, que puede extraer del examen una serie de informaciones útiles en el manejo hemodinámico del paciente.BACKGROUND AND OBJECTIVES: Isolated

  9. Compensatory dilatation of the Azygos Venous system Secondary To Superior Vena Cava Occlusion.

    Science.gov (United States)

    Paoletti, Francesco; Pellegrino, Valeria; Antonelli, Melissa; Ripani, Umberto; Mosca, Stefano; Durì, Davide; Galzerano, Antonio

    2009-01-01

    Superior vena cava (SVC) occlusion can be clinically recognized in the acute setting when the stenosing process does not allow the development of collateral venous channels, which guarantee the venous drainage to the right heart. On the contrary, when the obstruction develops progressively, the diagnosis of SVC obstruction may remain undiagnosed. In the present case, the presence of SVC thrombosis was purely coincidental. In fact, the obstruction was first noticed on diagnostic tests performed because of the malfunction of a totally implantable Porth a Cath placed into the superior vena cava (through right subclavian access), five years before, in a patient suffering from non-Hodgkin disease. Venography is the most appropriate diagnostic methodology which reveals the presence of a dilated azygos vein as a compensatory mechanism. Comparison with computed tomography allows to confirm the diagnosis and to identify the possible causes. Dilatation of the azygos vein, secondary to superior vena cava thrombosis, although a rare event, should be taken into consideration in those patients with CVC and who present with frequent episodes of deep venous thrombosis.

  10. The Perforation of the Superior Vena Cava Secondary to the Left Subclavian Dialysis Catheter.

    Science.gov (United States)

    Turkyilmaz, Atila; Karapolat, Sami; Kilic, Mehmet; Tekinbas, Celal

    2017-02-01

    The perforation of the superior vena cava during the placement of dialysis catheter and consequent hemothorax is a rare serious complication. Dialysis catheter was placed in the left subclavian vein in a 69-year-old male patient with chronic renal insufficiency who was hospitalized for intracerebral hematoma. During hemodialysis a day after the procedure, the patient was noted having right-sided hemothorax, causing lethargy, dyspnea, hypotension, and bradycardia. Right tube thoracostomy was performed and 1500 cc of hemorrhagic fluid was drained. Under general anesthesia, the right posterolateral thoracotomy was performed and the tip of the dialysis catheter was found in the pleural space, penetrating the anteromedial side of the superior vena cava. The perforation area was repaired by suturing with 3-0 prolene, and the dialysis catheter was removed externally. Postoperative period was uneventful, and tube thoracostomy was terminated on day 4. Establishing the diagnosis early and accurately and performing appropriate surgery would be lifesaving in superior vena cava perforation due to dialysis catheter.

  11. Sinus node, phrenic nerve and electrical connections between superior vena cava and right atrium: lessons learned from a prospective study

    Institute of Scientific and Technical Information of China (English)

    LONG De-yong; MA Chang-sheng; JIANG Hong; DONG Jian-zeng; LIU Xing-peng; HUANG He; TANG Yan-hong; WU Gang; HUANG Cong-xin

    2009-01-01

    Background When performing superior vena cava isolation, the major concerns are inadvertent ablation on sinus node and right phrenic nerve. However, little is known about the spatial relationship of electrical connections between superior vena cava and right atrium with the sinus node and phrenic nerve locations among individual patients.Methods We studied 87 patients (male/female 60/27, mean age of (51±9) years) with atrial fibrillation. Before superior vena cava isolation, the sinus node site was defined by right atrium activation mapping during sinus rhythm and the right phrenic nerve site was localized via pacing manoeuvre. Superior vena cava was isolated by ablation at the electrical connection under the guidance of circular mapping catheter. The sites of sinus node, phrenic nerve and electrical connections were noted. Continuous variables were compared using Student's t test. A P value <0.05 was considered statistically significant.Results Right atrium activation mapping revealed that the sinus node located at the anterior lateral segment of superior vena cava-right atrium junction in all patients, in 82 patients with detectable diaphragmatic stimulations, the phrenic nerve sites were predominantly at the lateral segment (70/82) with anterior lateral and anterior segments for a few patients. A total of 165 electrical connections were located among all 87 patients, and this averaged 1.8±0.6 (1-3) per patient. The anterior septum (72 patients (43.6%)), the anterior wall (40 (24.2%)), and the posterior septum (35 (35.4%)) of superior vena cava-right atrium junction were the electrical connection regular sites. Superior vena cava was isolated in all patients. Two patients developed sinus bradycardia, with 3 mild superior vena cava stenosis and 2 phrenic nerve palsy.Conclusions The sinus node, phrenic nerve and electrical connection sites were distributed along the superior vena cava-right atrium junctions at expected locations for most patients. The electrical

  12. Paso superior en una ladera

    Directory of Open Access Journals (Sweden)

    Bender, O.

    1965-07-01

    Full Text Available The Redwood highway, through the Californian forest, runs on a viaduct, as it crosses a mountain slope of about 45° inclination. The firm ground is fairly deep, and as an additional constructional difficulty, it was necessary to respect the natural beauty of the countryside. A structure of portal frames were built, forming a number of short spans. These spans were bridged with metal girders, on which a 19 m wide deck was placed. The columns are hollow and have a transversal cross beam, to join each pair. There was difficulty in excavating the foundations for the columns, as it was necessary to dig through the soft top soil, and also prevent this soil from hurting the trunks of the forest trees. Another significant difficulty in the construction of this viaduct was the access to the working site, since there were no suitable platforms from which to operate the appropriate machinery. This made it necessary to do a lot of the work by manual operation. As one of the edges of the deck is very close to the mountain side, a supporting beam was erected on this side. It was made of concrete, on metal piles. The formwork for the deck structure was placed on the concrete stems of the supporting piles.La autopista denominada Redwood (California salva, con un paso superior, la ladera de un bosque cuya pendiente es del 1/1. El terreno firme se halla a bastante profundidad, añadiéndose, a los naturales problemas de la construcción, el imperativo de respetar la belleza agreste del paraje. La solución adoptada consiste en una estructura porticada, con varios tramos de pequeñas luces, salvados con vigas metálicas, sobre los que se coloca la losa del tablero, de 19 m de anchura total. Los soportes están constituidos por pórticos de dos montantes huecos (con bases de hormigón en masa por debajo del suelo, hasta el firme coronados por un cabezal. La perforación de pozos para el hormigonado de los montantes presentaba la dificultad de atravesar el terreno

  13. [Maze procedure in a case of dextrocardia with atrial septal defect and persistent left superior vena cava].

    Science.gov (United States)

    Muraoka, Arata; Kawada, Masaaki; Misawa, Yoshio

    2014-08-01

    A 52-year-old man was diagnosed with dextrocardia at the age of 1 year and was asymptomatic until 1 year before admission. He was transferred to our hospital for management of atrial fibrillation. A transthoracic echocardiogram showed dextrocardia with atrial septal defect;moderate tricuspid valve regurgitation; and a large, persistent left superior vena cava. A cardiac catheterization study revealed that pulmonary flow/systemic flow (Qp/Qs) was 3.6 and that pulmonary vascular resistance was 2.5 Wood U·m². Intracardiac repair with tricuspid annuloplasty and a maze procedure was scheduled. When establishing cardiopulmonary bypass, venous drainage was initially obtained from the inferior vena cava and the left superior vena cava, and the small superior vena cava was then directly cannulated after opening the right atrium. The patient's postoperative course was uneventful, and serial electrocardiograms have demonstrated maintenance of normal sinus rhythm for 3.5 years after the operation.

  14. An uncommon course of the right superior vena cava in a patient with heterotaxy syndrome.

    Science.gov (United States)

    Chenu, Caroline; Fouilloux, Virginie; Kreitmann, Bernard; Metras, Dominique

    2012-01-01

    We present the case of an infant with congenital heart disease which includes a partial atrioventricular canal defect with the absence of the atrial septum (common atrium) and an extremely uncommon course of the right-sided superior vena cava (SVC) including an intra-atrial segment coursing intramurally along the right posterolateral atrial wall, with an intracardiac orifice situated low within the right side of the atrium, close to the atrial orifice of the right hepatic veins. This feature of the anatomy was discovered intraoperatively at the time of surgical repair. Systemic venous anatomy also included interrupted inferior vena cava (IVC) with azygos continuation to a left-sided SVC draining directly into the left side of the atrium. The successful surgical procedure included tunneling of the left-sided SVC to the right side of the common atrium and atrial septation with a patch.

  15. Interrupted inferior vena cava with hemiazygos continuation in an adult with a persistent left superior vena cava and left single coronary artery: A case report

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yeo Jin; Kwon, Se Hwan; Ahn, Sung Eun; Kim, Soo Joong; Oh, Joo Hyeong [College of Medicine, Kyung Hee University, Seoul (Korea, Republic of); Shin, Jong Soo [Dept. of Radiology, Kyung Hee University Hospital at Gangdong, Seoul (Korea, Republic of)

    2016-06-15

    A 50-year-old woman was referred to our institution for medical screening due to an incidental finding on abdominal ultrasonography. She underwent chest, abdomen and cardiac multi-detector computed tomography (MDCT). Her MDCT revealed absence of the hepatic segment of the inferior vena cava (IVC), with hemiazygos continuation and a left single coronary artery. The dilated hemiazygos vein drained directly into the persistent left superior vena cava (SVC). Herein, we reported a very rare case combining an incidentally found interrupted IVC with hemiazygos vein continuation, persistent left SVC and a left single coronary artery diagnosed by MDCT.

  16. [Duplication of the superior vena cava and other malformations discovered at insertion of a port-a-cath].

    Science.gov (United States)

    Hammerer, V; Jeung, M; Mennecier, B; Demian, M; Pauli, G; Quoix, E

    2005-09-01

    We report a clinical case of a persistent left superior vena cava discovered in a 50-year-old female patient when a port-a-cath was inserted. This already seldom malformation was associated with an arteria lusoria and polysplenia with left inferior vena cava with hemiazygos continuation, right-sided stomach, short pancreas, preduodenal portal vein and intestinal malrotation, but without any cardiac abnormalities.

  17. Invasive thymoma presenting as classic superior vena cava syndrome: a case of venous spread metastasis.

    Science.gov (United States)

    Panda, Prasan Kumar; Wig, Naveet; Kumar, Sanjeev; Arava, Sudheer

    2016-10-26

    The approach to an intrinsic cause of superior vena cava syndrome (SVCS) is usually difficult but rewarding. We report a case of a middle-aged man who presented with progressive oedema of the upper half of the body, dyspnoea, cough and weight loss for a 1-year duration. He was a non-smoker without prior hospitalisation. Chest radiography showed right-sided pleural effusion with an apparent normal superior mediastinum. Contrast-enhanced CT of the chest revealed a right atrial mass extending and completely obliterating to superior vena cava. The differentials were tuberculosis, invasive fungal granuloma, sarcoidosis, primary vasculitis, chronic venous thrombosis, cardiac sarcoma/lymphoma and metastatic thyroid tumour or thymoma. He underwent transvenous (femoral approach) biopsy of the mass and then cardiothoracic surgery after haemodynamic instability. Pathology showed invasive thymoma type B3. This case highlights the approach to an intrinsic cause of SVCS, a complication of the transvenous approach, and importantly a noble finding of venous spread metastasis.

  18. Life-threatening Cerebral Edema Caused by Acute Occlusion of a Superior Vena Cava Stent

    Energy Technology Data Exchange (ETDEWEB)

    Sofue, Keitaro, E-mail: keitarosofue@yahoo.co.jp; Takeuchi, Yoshito, E-mail: yotake62@qg8.so-net.ne.jp; Arai, Yasuaki, E-mail: arai-y3111@mvh.biglobe.ne.jp [National Cancer Center Hospital, Department of Diagnostic Radiology (Japan); Sugimura, Kazuro, E-mail: sugimura@med.kobe-u.ac.jp [Kobe University, Department of Radiology, Graduate School of Medicine (Japan)

    2013-02-15

    A71-year-old man with advanced lung cancer developed a life-threatening cerebral edema caused by the acute occlusion of a superior vena cava (SVC) stent and was successfully treated by an additional stent placement. Although stent occlusion is a common early complication, no life-threatening situations have been reported until now. Our experience highlights the fact that acute stent occlusion can potentially lead to the complete venous shutdown of the SVC, resulting in life-threatening cerebral edema, after SVC stent placement. Immediate diagnosis and countermeasures are required.

  19. Seminoma with bronchial involvement and superior vena cava syndrome: a rare combination.

    Science.gov (United States)

    Landete, Pedro; Chiner, Eusebi; Sancho-Chust, José N; Sánchez-Valverde, M Dolores; Pérez-Ferrer, Patricia; Bravo-Fernández, Rodrigo

    2014-05-01

    We describe the case of a 45-year-old male who was admitted with clinical signs of superior vena cava syndrome (SVCS). Physical examination showed collar of Stokes and extensive collateral circulation in the neck and anterosuperior thoracic region, as well as a large testicular mass. Fibrobronchoscopy revealed an endobronchial tumour, histopathologically diagnosed as seminoma, with the same characteristics as the testicular biopsy. Treatment was initiated with surgery, chemotherapy and radiotherapy, resulting in a major clinical improvement. We indicate the importance of considering SVCS as an entity related with less common neoplasms such as germ cell tumours. Copyright © 2013 SEPAR. Published by Elsevier Espana. All rights reserved.

  20. Implante de un cardiodesfibrilador bicameral vía vena cava superior izquierda persistente

    OpenAIRE

    Daniel Bagattin; Bruno Strada; Adrián Carlessi; Oscar Didio; Atilio Abud; Raúl Goyeneche

    2009-01-01

    La vena cava superior izquierda persistente (VCSIP) es la anomalía congénita venosa deltórax más frecuente. Se encuentra en el 0,3% de la población general y en el 5-10% de lospacientes con cardiopatías congénitas. Generalmente evoluciona en forma asintomática yno genera trastornos hemodinámicos, pero su reconocimiento es importante, ya que puededificultar la introducción de catéteres para mediciones hemodinámicas, los implantes demarcapasos cardíacos (MCP) y de cardiodesfibriladores automáti...

  1. MALIGNANT LYMPHOMA DEMONESTRATING SICK SINUS SYNDROME AND SUPERIOR VENA CAVA SYNDROME

    Directory of Open Access Journals (Sweden)

    S K Forouzannia

    2008-11-01

    Full Text Available "nReports which describe sick sinus syndrome due to malignant lymphoma have been rare and only eight cases have been reported until now. This is a case of sick sinus syndrome and superior vena cava syndrome secondary to invasion of occult malignant lymphoma of the lung in a 60 years old male. There were no symptoms or signs of malignancy before the first presentation with sick sinus syndrome. Patient was treated with implantation of a permanent pacemaker. SA node involvement by lymphoma should be considered as an etiological factor when sick sinus syndrome of unknown cause is encountered.

  2. Endovascular stenting in superior vena cava syndrome: utility of a through-and-through guidewire technique

    Energy Technology Data Exchange (ETDEWEB)

    Clark, T.W.I. [Dalhousie Univ., Queen Elizabeth II Health Sciences Centre, Section of Interventional Radiology, Dept. of Diagnostic Imaging, Halifax, NS (Canada)

    2000-08-01

    Objective: To describe an ancillary technique when a conventional femoral approach to superior vena cava (SVC) stent placement is not feasible because of buckling of balloon catheters or stent-deployment systems during device advancement. Patients and methods: Three patients in whom device advancement across the SVC lesion from a femoral or axillary approach was unsuccessful were managed by accessing the right jugular vein; SVC lesions were crossed from an antegrade direction, and the jugular guidewire was secured at the femoral access site to create a through-and-through guidewire. Results: Countertraction on the through-and-through guidewire during stent placement and dilation permitted unhindered advancement of stent delivery systems and catheters across the SVC. Technical and clinical success was achieved in each patient with relief of SVC syndrome within 24-72 hours. Survival ranged from 26 to 137 days. Conclusion: A through-and-through guidewire technique is useful when stenting a highly stenotic or thrombosed SVC in patients with superior vena cava syndrome. (author)

  3. Endovascular Treatment of Malignant Superior Vena Cava Syndrome: Results and Predictive Factors of Clinical Efficacy

    Energy Technology Data Exchange (ETDEWEB)

    Fagedet, Dorothee, E-mail: DFagedet@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de medecine interne, Pole Pluridisciplinaire de Medecine (France); Thony, Frederic, E-mail: FThony@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de radiologie et imagerie medicale, Pole d' Imagerie (France); Timsit, Jean-Francois, E-mail: JFTimsit@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de reanimation, Pole Medecine Aiguee Communautaire (France); Rodiere, Mathieu, E-mail: MRodiere@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de radiologie et imagerie medicale, Pole d' Imagerie (France); Monnin-Bares, Valerie, E-mail: v-monnin@chu-montpellier.fr [CHRU Arnaud de Villeneuve, Imagerie Medicale Thoracique Cardiovasculaire (France); Ferretti, Gilbert R., E-mail: GFerretti@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de radiologie et imagerie medicale, Pole d' Imagerie (France); Vesin, Aurelien; Moro-Sibilot, Denis, E-mail: DMoro.pneumo@chu-grenoble.fr [University Grenoble 1 e Albert Bonniot Institute, Inserm U823 (France)

    2013-02-15

    To demonstrate the effectiveness of endovascular treatment (EVT) with self-expandable bare stents for malignant superior vena cava syndrome (SVCS) and to analyze predictive factors of EVT efficacy. Retrospective review of the 164 patients with malignant SVCS treated with EVT in our hospital from August 1992 to December 2007 and followed until February 2009. Endovascular treatment includes angioplasty before and after stent placement. We used self-expandable bare stents. We studied results of this treatment and looked for predictive factors of clinical efficacy, recurrence, and complications by statistical analysis. Endovascular treatment was clinically successful in 95% of cases, with an acceptable rate of early mortality (2.4%). Thrombosis of the superior vena cava was the only independent factor for EVT failure. The use of stents over 16 mm in diameter was a predictive factor for complications (P = 0.008). Twenty-one complications (12.8%) occurred during the follow-up period. Relapse occurred in 36 patients (21.9%), with effective restenting in 75% of cases. Recurrence of SVCS was significantly increased in cases of occlusion (P = 0.01), initial associated thrombosis (P = 0.006), or use of steel stents (P = 0.004). Long-term anticoagulant therapy did not influence the risk of recurrence or complications. In malignancy, EVT with self-expandable bare stents is an effective SVCS therapy. These results prompt us to propose treatment with stents earlier in the clinical course of patients with SVCS and to avoid dilatation greater than 16 mm.

  4. Fetal persistent left superior vena cava in cases with and without chromosomal anomalies.

    Science.gov (United States)

    Du, Liu; Xie, Hong-Ning; Zhu, Yun-Xiao; Li, Li-Juan; Peng, Ruan; Zheng, Ju

    2014-08-01

    The objectives of this study are to determine and compare the prevalence of persistent left superior vena cava (PLSVC) in chromosomally normal and abnormal fetuses and to evaluate the potential of PLSVC as a screening marker for chromosomal abnormalities. Women undergoing routine fetal sonographic examinations were evaluated once for the presence of PLSVC. PLSVC was diagnosed on the basis of the identification of an additional vessel in the left of the pulmonary artery in a three-vessel trachea view. Associated abnormalities, karyotypes, and outcomes were analyzed. A total of 164 (0.7%, 164/25 171) cases of PLSVC were detected and successfully followed-up. The detection rates were 0.5% (81/17 535) and 1.1% (83/7636) in the low-risk and high-risk cases, respectively. The incidence of PLSVC was lower among the chromosomally or clinically normal (0.4%, 110/24 914) compared with chromosomally abnormal fetuses (7.8%, 20/257, p chromosomal anomalies, a rate that was higher than those fetuses with chromosomal normal (61.8%, 68/110). Persistent left superior vena cava is more common among chromosomally abnormal than normal fetuses, and PLSVC fetuses with other defects are more highly associated with chromosomal disorders than isolated PLSVC fetuses. Isolated PLSVC is a benign vascular anomaly and may not affect outcomes. © 2014 John Wiley & Sons, Ltd.

  5. Spinal uptake mimicking metastasis in SPECT/CT bone scan in a patient with superior vena cava obstruction.

    Science.gov (United States)

    Rager, Olivier; Nkoulou, René; Garibotto, Valentina; Boudabbous, Sana; Arditi, Daniel

    2013-11-01

    A 46-year-old female patient with a mediastinal neuroendocrine carcinoma complicated by superior vena cava syndrome was referred for a bone metastatic workup. Bone scan with SPECT/CT showed several vertebral fixations without alterations on the unenhanced CT, but a CT scan with injection of contrast media showed vertebral densities matched to the lesions described on the SPECT/CT. This pattern confirmed presence of collateral paths through vertebral veins due to superior vena cava syndrome. Lack of metastases was confirmed by MRI.

  6. Successful use of wearable cardioverter defibrillator in a patient with dextrocardia and persistent left superior vena cava.

    Science.gov (United States)

    Wan, Chingping; Oren, Jess W; Szymkiewicz, Steven J

    2013-09-01

    Congenital disorders, such as dextrocardia and persistent left superior vena cava, are rare. However, their presence is often associated with other cardiac anomalies, and may lead to lethal ventricular tachyarrhythmias, which result in sudden cardiac death. Treating patients with these disorders can present a challenge to clinicians, as it may cause technical difficulties during interventional procedures, and more often, altered defibrillation techniques in a setting of prehospital sudden cardiac arrest. This report describes the first case of successful defibrillation therapy delivered by the wearable cardioverter defibrillator to a patient with dextrocardia and persistent left superior vena cava during a ventricular tachycardia arrest.

  7. Endovascular treatment of an iatrogenic superior vena cava perforation caused by the placement of a hemodialysis catheter: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Kim, See Hyung; Kim, Young Hwan; Keum, Dong Yoon [Dongsan Medical Center, Keimyung University College of Medicine, Daegu (Korea, Republic of)

    2008-01-15

    The perforation of superior vena cava during the placement of a tunneled hemodialysis catheter, via the subclavian vein, is a rare complication, and is manifested by hemothorax or hemopericardium. The treatment of this complication requires an early diagnosis and open thoracic surgery. Herein, we report a patient with hemothorax due to the perforation of the superior vena cava during the placement of a tunneled hemodialysis catheter via the right subclavian vein which was successfully treated by embolization by way of a coil and histoacryl.

  8. A case of coarctation of the aorta associated with the patent ductus arteriosus and the persistent left superior vena cava

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Yoo Keun [Hanyang University College of Medicine, Seoul (Korea, Republic of)

    1974-10-15

    This is a case report of multiple congenital vascular anomalies in which coarctation of the aorta combined with the patent ductus arteriosus and the persistent left superior vena cava. The patient was a 15 year old girl and congenital heart disease was suspected during infancy. However, she heard the disease incurable, so she had been well with herb medicine until admission in our hospital. By physical examination and roentgenological studies including aortography, the diagnosis of the patent ductus arteriosus was detected and the coarctation of the aorta was suspected. The persistent left superior vena cava was found during surgery and it was proved roentgenologically by venography.

  9. Hypoxia Caused by Persistent Left Superior Vena Cava Connecting to the Left Atrium A Rare Clinical Entity

    Science.gov (United States)

    Freeman, Andrew M.; Fenster, Brett E.; Weinberger, Howard D.; Buckner, J. Kern; Lynch, David

    2012-01-01

    We relate the case of a 40-year-old man with a history of premature birth and dextroposition of the heart who presented for an evaluation of persistent hypoxia. An unrevealing pulmonary evaluation and agitated-saline echocardiogram led to cardiac magnetic resonance imaging. This revealed a very unusual finding: a persistent left superior vena cava with insertion into the left atrium and a small connecting vein between the right and left superior venae cavae. The implications, embryology, and pathogenesis of this rare condition are discussed. PMID:23109762

  10. Marcapasso bi-atrial epicárdico subxifóide na obstrução da veia cava superior Bi-atrial subxiphoid epicardial pacemaker in superior vena cava syndrome

    Directory of Open Access Journals (Sweden)

    Roberto Costa

    2006-10-01

    Full Text Available Um paciente portador de marcapasso definitivo bi-atrial-ventricular por fibrilação atrial paroxística e bradicardia sinusal, em uso crônico de anticoagulante oral, apresentou sinais clínicos da síndrome da veia cava superior. A venografia por subtração digital mostrou obstrução total do tronco braquiocefálico venoso direito e grande dificuldade de fluxo sangüíneo da veia inominada para a veia cava superior. A abordagem terapêutica constou da remoção completa do sistema transvenoso seguida de reimplante do sistema bi-atrial-ventricular por técnica epimiocárdica pela via subxifóide assistida por fluoroscopia.A patient with a bi-atrial-ventricular permanent pacemaker due to paroxystic atrial fibrillation associated to sinus bradycardia, in chronic use of oral anticoagulant, presented clinical signs of superior vena cava syndrome. Digital subtraction venography showed total obstruction of the right brachiocephalic venous trunk and severe stenosis of the connection of the left trunk to the superior vena cava. The therapeutic approach consisted of complete removal of transvenous system followed by re-implant of the bi-atrial-ventricular system using an epicardial subxiphoid access with fluoroscopic assistance

  11. Hibernoma cardiaco en la aurícula derecha y alrededor de la vena cava superior. Reporte de un caso

    Directory of Open Access Journals (Sweden)

    Rebeca Mata-Caballero

    2017-09-01

    Full Text Available Los hibernomas cardiacos son tumores benignos extremadamente infrecuentes. Suelen ser asintomáticos, pero pueden causar complicaciones como arritmias, embolización, derrame pericárdico y obstrucción del flujo sanguíneo. Presentamos el caso de un hibernoma en la aurícula derecha y alrededor de la vena cava superior en una paciente asintomática, con antecedentes de cáncer de mama en completa remisión. El tumor resultó ser un hallazgo casual en un FDG-PET/TC. El ecocardiograma transtorácico, transesofágico, así como la resonancia magnética cardiaca facilitaron el diagnóstico diferencial. No obstante, el diagnóstico definitivo de estos tumores es histopatológico. Aunque son tumores benignos y la malignización es excepcional, la resección quirúrgica es el tratamiento de elección para prevenir complicaciones potenciales. Se llevó a cabo una resección del tumor lo que permitió el diagnóstico definitivo de hibernoma benigno. La evolución posterior fue excelente.

  12. Compression of the superior vena cava by an interatrial septal lipoma: a case report.

    Science.gov (United States)

    Grech, R; Mizzi, A; Grech, S

    2013-01-01

    Primary cardiac tumours are rare; their prevalence ranges from 0.0017% to 0.28% in various autopsy series. Cardiac lipomas are well-encapsulated benign tumours typically composed of mature fat cells, and their reported size ranges from 1 to 15 cm. They are usually seen in the left ventricle and the right atrium. Lipomas are true neoplasms, as opposed to lipomatous hypertrophy of the interatrial septum, which is a nonencapsulated hyperplastic accumulation of mature and foetal adipose tissue. Cardiac lipomas occur in patients of all ages, and the frequency of occurrence has been found to be equal in both sexes. Patients are usually asymptomatic, although the manifestation of symptoms depends upon both size and location of the tumour. We present the case of a patient with an interatrial septal lipoma, causing obstruction of the superior vena cava.

  13. Compression of the Superior Vena Cava by an Interatrial Septal Lipoma: A Case Report

    Directory of Open Access Journals (Sweden)

    R. Grech

    2013-01-01

    Full Text Available Primary cardiac tumours are rare; their prevalence ranges from 0.0017% to 0.28% in various autopsy series. Cardiac lipomas are well-encapsulated benign tumours typically composed of mature fat cells, and their reported size ranges from 1 to 15 cm. They are usually seen in the left ventricle and the right atrium. Lipomas are true neoplasms, as opposed to lipomatous hypertrophy of the interatrial septum, which is a nonencapsulated hyperplastic accumulation of mature and foetal adipose tissue. Cardiac lipomas occur in patients of all ages, and the frequency of occurrence has been found to be equal in both sexes. Patients are usually asymptomatic, although the manifestation of symptoms depends upon both size and location of the tumour. We present the case of a patient with an interatrial septal lipoma, causing obstruction of the superior vena cava.

  14. Catheter-directed Thrombolysis in Acute Superior Vena Cava Syndrome Caused by Central Venous Catheters.

    Science.gov (United States)

    Cui, Jie; Kawai, Tasuo; Irani, Zubin

    2015-01-01

    Indwelling central venous catheters have been reported to increase the risk of superior venous cava (SVC) syndrome. This case report describes the development of acute SVC syndrome in a 28-year-old woman with end-stage renal disease implanted with a left-side hemodialysis reliable outflow graft and a right-side double lumen hemodialysis catheter via internal jugular veins. Her symptoms were not alleviated after catheter removal and systemic anticoagulation therapy. She was eventually treated with catheter-directed thrombolysis and a predischarge computer tomographic venogram on postthrombolytic procedure day 7 showed patent central veins and patient remained asymptomatic. This case demonstrates that catheter-directed thrombolysis can be safely employed to treat refractory catheter-induced acute SVC syndrome in end-stage renal disease patients.

  15. Successful Venous Angioplasty of Superior Vena Cava Syndrome after Heart Transplantation

    Directory of Open Access Journals (Sweden)

    Thomas Strecker

    2014-01-01

    Full Text Available Introduction. For patients with terminal heart failure, heart transplantation (HTX has become an established therapy. Before transplantation there are many repeated measurements with a pulmonary artery catheter (PAC via the superior vena cava (SVC necessary. After transplantation, endomyocardial biopsy (EMB is recommended for routine surveillance of heart transplant rejection again through the SVC. Case Presentation. In this report, we present a HTX patient who developed a SVC syndrome as a possible complication of all these procedures via the SVC. This 35-year-old Caucasian male could be successfully treated by balloon dilatation/angioplasty. Conclusion. The SVC syndrome can lead to pressure increase in the venous system such as edema in the head and the upper part of the body and further serious complications like cerebral bleeding and ischemia, or respiratory problems. Balloon angioplasty and stent implantation are valid methods to treat stenoses of the SVC successfully.

  16. Myxoma of the Superior Vena Cava Origin Presented as a Right Atrial Mass

    Directory of Open Access Journals (Sweden)

    Feridoun Sabzi

    2015-10-01

    Full Text Available Myxomas are the most common benign cardiac tumors. Myxomas are more common in the left heart chamber than the right side chamber. An extracardiac origin presenting as a right atrial mass is very rare. We present a case of myxoma originating in the superior vena cava (SVC in a 24-year-old man, who underwent surgical resection. Preoperative two-dimensional echocardiography demonstrated a mass in the right atrium. Intraoperatively, the tumor was found to have originated from the SVC orifice. The tumor was excised from the SVC by opening the one-third proximal portion of the SVC. Pathological examination revealed a myxoma, and one-year follow-up showed no evidence of the recurrence of any tumors in the SVC.

  17. A giant neuroendocrine tumor of the thymus gland causing superior vena cava syndrome.

    Science.gov (United States)

    Komoda, Satsuki; Komoda, Takeshi; Knosalla, Christoph; Pavel, Marianne E; Morawietz, Lars; von Weikersthal, Ludwig Fischer; Lehmkuhl, Hans B; Hetzer, Roland

    2012-12-01

    We describe the case of a 37-year-old man with a rare giant thymic neuroendocrine tumor. The patient presented with a swelling of the neck associated with superior vena cava syndrome and underwent stent implantation in the right innominate vein (brachiocephalic vein). Computed tomography imaging revealed a large tumor of the mediastinum, measuring 15 × 10 × 12 cm. CT-guided core-needle biopsy for histology revealed a thymic carcinoid. Surgical resection of the tumor and repair with interposition of a 14-mm Gore-Tex prosthesis between the left innominate vein and the right atrial appendage were performed. Histopathological analysis classified the tumor as an atypical thymic carcinoid. Postoperative course was uneventful. Since complete resection could not be achieved, the patient received two cycles of peptide-receptor radionuclide therapy followed by conventional radiotherapy, and remains symptom-free at 12 months after surgery.

  18. Detection of Superior Vena Cava Obstruction on Dynamic 99mTc-DTPA Renal Transplant Scintigraphy

    Directory of Open Access Journals (Sweden)

    Elahe Pirayesh

    2016-02-01

    Full Text Available We present an asymptomatic patient with a history of prolonged hemodialysis through a right internal jugular vein catheter who was diagnosed with superior vena cava (SVC obstruction on 99mTechnetium-diethylenetriaminepentaacetic acid renal transplant scintigraphy. During the angiographic phase, an unusual vascular filling pattern was detected on the anterior view of the abdomen. Angioscintigraphic imaging of the chest wall was suggestive of SVC obstruction. The SVC obstruction in our patient was related to the long-term use of an indwelling catheter in the central venous system, which is a well-known complication of such a procedure. There is also evidence of a hypercoagulable state in dialyzed uremic cases; therefore, our patient may have been more susceptible to an SVC thrombosis. Acquired compensatory dilatation of the azygos vein is rather a rare finding. To the best of our knowledge, this is the first report describing an asymptomatic patient with SVC obstruction who was diagnosed by renal scintigraphy.

  19. Mesothelioma with superior vena cava obstruction in young female following short latency of asbestos exposure.

    Science.gov (United States)

    Patra, Anupam; Kundu, Susmita; Pal, Amitava; Saha, Sayantan

    2015-01-01

    An 18 years female was admitted with right-sided chest pain, dry cough, and low-grade fever and weight loss for last 1 month. On examination, patient had features of superior vena cava (SVC) syndrome with right-sided pleural effusion. Chest X-ray showed mediastinal widening with nonhomogenous opacity mainly in the periphery of right upper and mid zone with right-sided pleural effusion. Ultrasonography thorax confirmed mild pleural effusion. Pleural fluid analysis showed lymphocytic, exudative, low adenosine deaminase with negative for Pap smear. Contrast-enhanced computed tomography (CT) thorax revealed large extensive nodular soft tissue lesion along right mediastinum as well as costal pleura, with enlarged pretracheal lymphadenopathy and SVC obstruction. CT guided Tru-cut biopsy report came as malignant epithelial tumor with polygonal shape, abundant eosinophilic cytoplasm and nuclei with prominent nucleoli suggestive of mesothelioma of epithelioid type. The tumor cell expressed calretinin, WT-1, and immunonegative for thyroid transcription factor-1.

  20. Giant saphenous vein graft pseudoaneurysm to right posterior descending artery presenting with superior vena cava syndrome

    Institute of Scientific and Technical Information of China (English)

    Andres; Vargas-Estrada; Dianna; Edwards; Mohammad; Bashir; James; Rossen; Firas; Zahr

    2015-01-01

    Saphenous vein grafts(SVG) pseudoaneurysms,especially giant ones,are rare and occur as a late complication of coronary artery bypass grafting. This condition affects both genders and typically occurs within the sixth decade of life. The clinical presentation ranges from an asymptomatic incidental finding on imaging studies to new onset angina,dyspnea,myocardial infarction or symptoms related to compression of neighboring structures. An 82-year-old woman presented with acute onset back pain,dyspnea and was noted to have significantly engorged neck veins. In the emergency department,a chest computed tomographic angiogram with intravenous contrast revealed a ruptured giant bilobed SVG pseudoaneurysm to the right posterior descending artery(RPDA). This imaging modality also demonstrated compression of the superior vena cava(SVC) by the SVG pseudoaneurysm. Coronary angiogram with bypass study was performed to establish the patency of this graft. Endovascular coiling and embolization of the SVG to RPDA was initially considered but disfavored after the coronary angiogram revealed preserved flow from the graft to this arterial branch. After reviewing the angiogram films,a surgical strategy was favored over a percutaneous intervention with a Nitinol self-expanding stent since the latter would have not addressed the superior vena cava compression caused by the giant pseudoaneurysm. Intraoperative transesophageal echocardiogram demonstrated SVCcompression by the giant pseudoaneurysm cranial lobe. Our patient underwent surgical ligation and excision of the giant pseudoaneurysm and the RPDA was regrafted successfully. In summary,saphenous vein grafts pseudoaneurysms can be life-threatening and its therapy should be guided based on the presence of mechanical complications,the patency of the affected vein graft and the involved myocardial territory viability.

  1. Bleeding 'downhill' esophageal varices associated with benign superior vena cava obstruction: case report and literature review.

    Science.gov (United States)

    Loudin, Michael; Anderson, Sharon; Schlansky, Barry

    2016-10-24

    Proximal or 'downhill' esophageal varices are a rare cause of upper gastrointestinal hemorrhage. Unlike the much more common distal esophageal varices, which are most commonly a result of portal hypertension, downhill esophageal varices result from vascular obstruction of the superior vena cava (SVC). While SVC obstruction is most commonly secondary to malignant causes, our review of the literature suggests that benign causes of SVC obstruction are the most common cause actual bleeding from downhill varices. Given the alternative pathophysiology of downhill varices, they require a unique approach to management. Variceal band ligation may be used to temporize acute variceal bleeding, and should be applied on the proximal end of the varix. Relief of the underlying SVC obstruction is the cornerstone of definitive treatment of downhill varices. A young woman with a benign superior vena cava stenosis due to a tunneled internal jugular vein dialysis catheter presented with hematemesis and melena. Urgent upper endoscopy revealed multiple 'downhill' esophageal varices with stigmata of recent hemorrhage. As there was no active bleeding, no endoscopic intervention was performed. CT angiography demonstrated stenosis of the SVC surrounding the distal tip of her indwelling hemodialysis catheter. The patient underwent balloon angioplasty of the stenotic SVC segment with resolution of her bleeding and clinical stabilization. Downhill esophageal varices are a distinct entity from the more common distal esophageal varices. Endoscopic therapies have a role in temporizing active variceal bleeding, but relief of the underlying SVC obstruction is the cornerstone of treatment and should be pursued as rapidly as possible. It is unknown why benign, as opposed to malignant, causes of SVC obstruction result in bleeding from downhill varices at such a high rate, despite being a less common etiology of SVC obstruction.

  2. Implantation of VVI pacemaker in a patient with dextrocardia, persistent left superior vena cava, and sick sinus syndrome

    Science.gov (United States)

    Guo, Gongliang; Yang, Lili; Wu, Jinyi; Sun, Liqun

    2017-01-01

    Abstract Background: Dextrocardia, or right-lying heart, is an uncommon congenital heart disease in which the apex of the heart is located on the right side of chest. Persistent left superior vena cava (PLSVA) is a rare venous anomaly that is often associated with the abnormalities of cardiac transduction system. A case with combination of dextrocardia, persistent left superior vena cava, and sick sinus syndrome has not been reported. Methods: We used different techniques including cardiac color Doppler echocardiography, 24-hour Holter monitoring, and abdominal ultrasound to make a diagnosis and treated the patient by implanting a VVI pacemaker. Results: A 50-year-old woman was admitted with a syncope. Angiography of the right atrium and superior vena cava, echocardiography, electrocardiography, and abdominal ultrasound revealed the presence of the combination of mirror image dextrocardia, PLSVA, and sick sinus syndrome. The complex structural anomalies presented great technical challenges for interventional treatments. After thorough examination and understanding of the structural anatomy and anomalies of the superior and inferior vena cava and cardiac chambers, we successfully treated this patient by implanting a VVI pacemaker. Conclusion: Physicians must be aware of the complexity of the morphological and anatomical structures of dextrocardia accompanying PLSVC. Given that the diagnosis of situs inversus was performed at a relatively advanced age, it is therefore important to make such a correct diagnosis followed by appropriate therapeutic intervention. PMID:28151908

  3. A RARE CASE OF EXTENSIVE THROMBOSIS OF INFERIOR VENA CAVA, PORTAL VEIN, SPLENIC VEIN AND SUPERIOR MESENTRIC VEIN

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    Giridhar

    2015-03-01

    Full Text Available While the most common presentation of venous thromboembolic disease is deep vein thrombosis (DVT or pulmonary thromboembolism, rarer manifestations are thrombosis of jugular vein, cerebral sinus and inferior vena cava. Here we are presenting a rare case of inferior vena caval thrombosis with multiple thrombus in portal vein, splenic vein and superior mesenteric vein

  4. Behçet's disease-related superior vena cava syndrome and bleeding downhill varices: A rare complication.

    Science.gov (United States)

    Yaşar, Bülent; Kılıçoğlu, Gamze

    2017-03-01

    Obstruction of the superior vena cava (SVC) due to any cause results in development of venous collaterals in the upper part of the esophagus, known as "downhill" varices. Although rare, bleeding can be life-threatening. Presently described is case of Behçet's diseaserelated SVC occlusion in a patient who presented with gastrointestinal bleeding from upper esophageal varices.

  5. Anomalous connection of superior vena cava to the left atrium masquerading as epilepsy: A case report with review of literature

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    Singh Sandeep

    2008-01-01

    Full Text Available An 11-year-old girl who presented with recurrent epileptic fits was eventually found to have a superior vena cava draining into the left atrium. There was no atrial septal defect. The patient underwent a successful surgical correction.

  6. Budd-Chiari syndrome: A case with a combination of hepatic vein and superior vena cava occlusion

    Institute of Scientific and Technical Information of China (English)

    Yoshio Araki; Chikara Sakaguchi; Izumi Ishizuka; Masaya Sasaki; Tomoyuki Tsujikawa; Shigeki Koyama; Akira Furukawa; Yoshihide Fujiyama

    2005-01-01

    We here report a recent, rare case of Budd-Chiari syndrome, associated with a combination of hepatic vein and superior vena cava occlusion. A young female, who had been ingood health, was admitted to our hospital because of massive ascites. The patient had used no oral contraceptives. Tests for coagulation disorders, hematological disorders, and antiphospholipid syndrome were all negative. BuddChiari syndrome was diagnosed by radiographic examination. The patient was suffering from a combination of hepatic vein and superior vena cava occlusion. In particular, the venous flow returned from the liver mainly through a right accessory hepatic vein, and stenosis was recognized at the orifice of this collateral vein into the vena cava.Subsequently, the patient underwent percutaneous balloon dilatation therapy for this stenosis. After this treatment, the massive ascites was gradually reduced, and she was discharged from our hospital. It has now been one year since discharge, and the patient has been doing well. If deteriorating liver function or intractable ascites occur again, a liver transplantation may be anticipated. This is the first case report of Budd-Chiari syndrome associated with a superior vena cava occlusion.

  7. Retrograde Tempofilter II{sup TM} Placement within the Superior Vena Cava in a Patient with Acute Upper Extremity Deep Venous Thrombosis: the Filter Stands on Its Head

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    Yim, Nam Yeol [The Armed Forces Yangju Hospital, Yangju (Korea, Republic of); Chang, Nam Kyu; Lim, Jae Hoon; Kim, Jae Kyu [Chonnam National University Hospital, Gwangju (Korea, Republic of)

    2011-02-15

    The Tempofilter II is a widely used temporary vena cava filter. Its unique design, which includes a long tethering catheter with a subcutaneous anchor, facilitates the deployment and retrieval of the device. Despite this, the Tempofi lter II has been used only in the inferior vena cava of patients with lower extremity deep venous thrombosis. In this article, we present a case of superior vena cava filtering using the Tempofilter II in patients with upper extremity deep venous thrombosis

  8. Dialysis catheter-related superior vena cava syndrome with patent vena cava: Long term efficacy of unilateral viatorr stent-graft avoiding catheter manipulation

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    Quaretti, Pietro; Galli, Franco; Maramarco, Lorenzo Paplo; Corti, Riccardo; Leati, Giovanni; Fiorina, Ilaria; Maestri, Marcello [IRCCS Policlinico San Matteo Foundation, Pavia (Italy)

    2014-06-15

    Central venous catheters are the most frequent causes of benign central vein stenosis. We report the case of a 79-year-old woman on hemodialysis through a twin catheter in the right internal jugular vein, presenting with superior vena cava (SVC) syndrome with patent SVC. The clinically driven endovascular therapy was conducted to treat the venous syndrome with a unilateral left brachiocephalic stent-graft without manipulation of the well-functioning catheter. The follow-up was uneventful until death 94 months later.

  9. Implanted central venous catheter-related acute superior vena cava syndrome: management by metallic stent and endovascular repositioning of the catheter tip

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    Qanadli, S.D.; Mesurolle, B.; Sissakian, J.F.; Chagnon, S.; Lacombe, P. [Service de Radiologie, Hopital Ambroise Pare, 92 - Boulogne (France)

    2000-08-01

    We describe a case of a 49-year-old woman with stage-IIIB lung adenocarcinoma who experienced an acute superior vena cava syndrome related to an implanted central venous catheter without associated venous thrombosis. The catheter was surgically implanted for chemotherapy. Superior vena cava syndrome appeared after the procedure and was due to insertion of the catheter through a subclinical stenosis of the superior vena cava. Complete resolution of the patient's symptoms was obtained using stent placement and endovascular repositioning of the catheter tip. (orig.)

  10. Stent Implantation for Superior Vena Cava Syndrome of Malignant Cause.

    Science.gov (United States)

    Büstgens, Felix A; Loose, Reinhard; Ficker, Joachim H; Wucherer, Michael; Uder, Michael; Adamus, Ralf

    2017-02-02

    Purpose The purpose of this paper is the retrospective analysis of endovascular therapy for the treatment of superior vena cava syndrome (SVCS) of malignant cause. This study focuses on the effectiveness of the therapy regarding the duration of remission, symptom control and practicability. Materials and Methods From January 2003 to November 2012, therapeutic implantation of one or more stents was performed in 141 patients suffering from SVCS. The medical history was retrospectively researched using digitalized patient files. If those were incomplete, secondary research was conducted using the cancer registry of the General Hospital Nuremberg, the cancer registry of the tumor center at Friedrich-Alexander-University Erlangen-Nuremberg (FAU) or information given by physicians in private practice. This data was collected using Microsoft Office Excel(®) and statistically analyzed using IBM SPSS Statistics 22(®). Results 168 stents were implanted in 141 patients (median age: 64.6 years; range: 36 - 84), 86 being male and 55 being female. In 121 patients, SVCS was caused by lung cancer (85.8 %), in 9 patients by mediastinal metastasis of an extrathoracic carcinoma (6.4 %), in 3 patients by mesothelioma of the pleura (2.1 %) and in 1 patient by Hodgkin's disease (0.7 %). There was no histological diagnosis in 7 cases (4.9 %). The primary intervention was successful in 138 patients (97.9 %). Immediate thrombosis in the stent occurred in the remaining 3 cases. Recurrence of SVCS was observed in 22 patients (15.6 %), including 5 early and 17 late occlusions. Stent dislocation or breakage was not observed. As expected, the survival after implantation was poor. The median survival was 101 days, and the median occlusion-free survival was 80 days. Conclusion The symptomatic therapy of SVCS with endovascular stents is effective and safe. Despite effective symptom control and a low rate of recurrence, the patients' prognosis is poor. Key Points

  11. Right atrium and superior vena cava pressure measurements in a novel animal model to study one and a half ventricle repair as compared to Fontan type procedure

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    Anil Bhattarai

    2017-01-01

    Full Text Available Background & Objectives: To evaluate the advantages of the one and a half ventricle repair on maintaining a low pressure in the inferior vena cava district. Also evaluate the competition of flows at the superior vena cava – right pulmonary artery anastomosis site, in order to understand the hemodynamic interaction of a pulsatile flow in combination to a laminar one. Materials & Methods: Adult rabbits (n=30 in terminal anaesthesia with a follow up of 8 h were used, randomly distributed in three experimental groups: Group 1: animals with an anastomosis between superior vena cava and right pulmonary artery, as a model of one and one half ventricle repair; Group 2: animals with the cavopulmonary anastomosis followed by clamping of the right pulmonary artery proximal to the anastomosis; and Group 3: sham animals. Pressures of superior vena cava and pulmonary arteries were afterwards measured, in a resting condition as well as after induced pharmacological stress test.Results: In Group 1, superior vena cava pressure was significantly higher, while venous pressure in the inferior vena cava – right atrium district was constant or lower in comparison with the other groups. After stress test, the pressure in the superior vena cava and the heart rate both increased further, but the right ventricular, right atrial and pulmonary artery pressures remained similar to the values in a resting condition. This proved that the inferior vena cava return was well-preserved, and no venous hypertension was present in the inferior vena cava district even after stress test (good exercise tolerance.Conclusion: One and one half ventricle repair can be considered a good surgical strategy for maintaining a low pressure in the inferior vena cava district with potential for right ventricle growth, restoring the more physiological circulation in borderline or failing right ventricle conditions. The experiment presented a positive finding in favour of one and one half

  12. Long-term success of endovascular treatment of benign superior vena cava occlusion with chylothorax and chylopericardium

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    Veroux, Pierfrancesco; Veroux, Massimiliano; Bonanno, Maria Giovanna; Tumminelli, Maria Giuseppina [Department of Surgery and Transplantation, University Hospital, Via S. Sofia, 78, 95123 Catania (Italy); Baggio, Elda [Department of Surgery and Gastroenterological Sciences, University Hospital of Verona (Italy); Petrillo, Giuseppe [Department of Radiology, University Hospital, Via S. Sofia, 78, 95123 Catania (Italy)

    2002-07-01

    The most likely etiology of benign obstruction of the superior vena cava (SVC) include fibrosing mediastinitis and iatrogenic etiologies such as sclerosis and obstruction caused by pacemakers and central venous catheter. Percutaneous stenting of SVC has been used with success both in malignant and benign superior vena cava syndrome; however, long-term follow-up of endovascular procedures is not well known. We present a case of a patient with complete occlusion of SVC of benign etiology, presenting dramatically with bilateral chylothorax and chylopericardium with cardiac tamponade, who underwent successful vena caval revascularization with thrombolytic therapy and placement of self-expanding metallic stent. The 42-month follow-up could encourage endovascular procedures even in SVC syndrome of benign etiology. (orig.)

  13. Massive Thrombosis of the Right Atrium Extended to the Superior Vena Cava at the Diagnosis of Acute Myeloid Leukemia

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    Bienvenu Houssou

    2016-01-01

    Full Text Available Introduction. Venous thromboembolic disease is a common complication found in 8% of patients with acute myeloid leukemia. The location at the right atrium is exceptional. These last fifty years, only 6 cases of thrombosis of the atrium in the diagnosis of acute myeloid leukemia were published on PubMed search engine. Case Presentation. 35-year-old farmer, who had been admitted by emergency department for superior vena cava syndrome and had a hyperleukocytic AML with complex karyotype associated with a significant thrombosis of the right atrium, extended all along the superior vena cava. He has been treated by the 2011 AML protocol using low molecular weight heparin and died from respiratory distress. Conclusions. If thrombosis is common in AML, the location in right atrium is rare. Its management requires surgery that is sometimes difficult to achieve.

  14. Superior Vena Cava Obstruction in Hemodialysis Patients: Symptoms, Clinical Presentation and Outcomes Compared to Other Etiologies.

    Science.gov (United States)

    Siegel, Yoel; Kuker, Russ

    2016-08-01

    The incidence of superior vena cava (SVC) obstruction associated with non-malignant diseases is on the rise, and a large percentage of these patients are on hemodialysis (HD). The objective was to characterize the presentation, symptoms and outcomes of HD patients with SVC obstruction identified on computerized tomography (CT) compared to patients with other etiologies such as neoplasm. A search was performed through the PACS system using key words to identify patients with SVC obstruction. The CT scans and charts were reviewed for degree of obstruction, signs, symptoms and outcomes. Thirty-six patients were included in the study. Thirteen were on HD and of these, five had symptoms associated with SVC obstruction and one had concordant findings on physical exam. In comparison, thirteen patients with a chest neoplasm had symptoms and four had concordant findings on physical exam. On follow up, 31% of the HD patients died and of these 60% were symptomatic and died within 2 years. 29% of lung cancer patients died within 16 months. The majority of the HD patients had complete SVC obstruction (85%) as opposed to those with a chest neoplasm who mostly had partial SVC occlusion (67%). In conclusion, patients on HD with SVC obstruction are less often symptomatic than those with a neoplasm. However, these HD patients had a death rate similar to the patients with cancer. This risk seems to increase in those who are symptomatic. Diagnosis of SVC obstruction by CT in HD patients may help identify those with less favorable prognosis.

  15. Endovascular recanalization of superior vena cava,brachiocephalic, and subclavian venous occlusions caused by nonmalignant lesions

    Institute of Scientific and Technical Information of China (English)

    YE Meng; SHI Ya-xue; HUANG Xiao-zhong; ZHAO Yi-ping; ZHANG Hao; ZHANG Ji-wei

    2012-01-01

    Background Endovascular recanalization (EVR) is becoming the primary therapy for patients with central venous (brachiocephalic,subclavian,and superior vena cava) occlusion (CVO) caused by benign etiology.In this study,we retrospectively analyzed our experience in using EVR to treat benign CVO in 10 patients between April 2005 and September 2010.Methods The mean age of the patients was 65.3 years,2/10 cases were female,and the origin of cause of CVO in 7/10 cases was the hemodialysis access in the upper extremity.The patients were treated with primary stent placement and evaluated with immediate technical success rate and post-interventional patency rate after the procedure.Results Eight patients were treated successfully with stent placement and experienced symptomatic relief immediately.No technical complications were observed during EVR treatment.Patients were followed up by ultrasonography and venography.Median follow-up was 13 months,Three patients required secondary procedures to maintain patency.Conclusions EVR is an effective and safe treatment in patients with benign CVO.It provides immediate symptom relief and maintains a continuous access for hemodialysis.

  16. Urothelial Superior Vena Cava Syndrome with Limited Response to Radiation Therapy.

    Science.gov (United States)

    Bingham, Nishan; Wallace Iii, H James; Monterroso, Joanne; Verschraegen, Claire; Waters, Brenda L; Anker, Christopher J

    2015-01-01

    Radiation therapy (RT) is the standard of care for cases of superior vena cava (SVC) syndrome secondary to metastatic adenopathy. Histologies vary in radiosensitivity and response time, making alternative therapies such as chemotherapy and/or intravenous stenting preferable alternative options for certain diagnoses. Metastatic urothelial carcinoma is a particularly rare cause of SVC syndrome with only 3 cases reported in the literature. Consequently, optimal management remains challenging, particularly in cases of high tumor burden. Here we present a case of highly advanced metastatic urothelial cancer with SVC syndrome and tracheal compression. The patient started urgent RT but expired midway through her treatment course due to systemic progression of disease, requiring SVC and tracheal stenting. The authors review the literature including discussion of the few other known cases of SVC syndrome due to urothelial carcinoma and a review of this histology's response to RT. This experience suggests, that in cases of SVC syndrome with widespread advanced disease, stenting and chemotherapy with or without RT may be the most important initial treatment plan, depending on goals of care.

  17. Urothelial Superior Vena Cava Syndrome with Limited Response to Radiation Therapy

    Directory of Open Access Journals (Sweden)

    Nishan Bingham

    2015-01-01

    Full Text Available Radiation therapy (RT is the standard of care for cases of superior vena cava (SVC syndrome secondary to metastatic adenopathy. Histologies vary in radiosensitivity and response time, making alternative therapies such as chemotherapy and/or intravenous stenting preferable alternative options for certain diagnoses. Metastatic urothelial carcinoma is a particularly rare cause of SVC syndrome with only 3 cases reported in the literature. Consequently, optimal management remains challenging, particularly in cases of high tumor burden. Here we present a case of highly advanced metastatic urothelial cancer with SVC syndrome and tracheal compression. The patient started urgent RT but expired midway through her treatment course due to systemic progression of disease, requiring SVC and tracheal stenting. The authors review the literature including discussion of the few other known cases of SVC syndrome due to urothelial carcinoma and a review of this histology’s response to RT. This experience suggests, that in cases of SVC syndrome with widespread advanced disease, stenting and chemotherapy with or without RT may be the most important initial treatment plan, depending on goals of care.

  18. Endovascular treatment of stenoses in the superior vena cava syndrome caused by non-tumoral lesions

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    Bornak, A.; Ris, H.-B.; Probst, H.; Corpataux, J.-M. [Department of Thoracic and Vascular Surgery, Centre Hospitalier Universitaire Vaudois, Bugnon 46, 1011 Lausanne (Switzerland); Wicky, S. [Department of Radiodiagnostic and Interventional Radiology, Centre Hospitalier Universitaire Vaudois, Bugnon 46, 1011 Lausanne (Switzerland); Milesi, I. [Department of Angiology, Centre Hospitalier Universitaire Vaudois, Bugnon 46, 1011 Lausanne (Switzerland)

    2003-05-01

    We report our experience in percutaneous treatment of non-tumoral superior vena cava syndrome (SVCS) between December 1998 and July 2001. During a period of 2.5 years, 9 patients (age range 27-84 years, mean age 50 years) were treated percutaneously for significant non-tumoral SVCS. Symptomatic SVCS were due to dialysis catheters (7), central line (1) and radiation therapy (1). In thrombotic occlusions and severe stenosis, a preliminary in situ thrombolysis was achieved before angioplasty. Patients were followed by echo-Doppler, computed tomography angiography (CTA), magnetic resonance angiography (MRA), or phlebography. Complete recanalization of the veins and immediate resolution of symptomatic SVCS were obtained in all patients, with no procedure-related complication. Thirteen stents were placed in 9 patients with a mean clinical follow-up of 9.1 months (range 2-23 months). One hundred percent patency at 6 months was obtained. Two patients recurred twice and were treated with new stent placement. At 12 months the patency was 67% and assisted patency was 100%. Stent placement in benign symptomatic SVCS is a safe and minimally invasive procedure, with no technical and clinical complications in our experience. It allowed immediate relief of symptoms, and in dialysed patients could provide continued use of hemodialysis access. Close clinical surveillance is mandatory to assess stent patency. (orig.)

  19. Superior Vena Cava Syndrome due to Thrombosis: A Rare Paraneoplastic Presentation of Bronchogenic Carcinoma

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    Avradip Santra

    2016-07-01

    Full Text Available Superior vena cava (SVC syndrome is not an uncommon occurrence in patients with malignancy and it is often described as a medical emergency. In majority of the cases, SVC syndrome occurs due to mechanical obstruction of the SVC by extraluminal compression with primary intrathoracic malignancies. However, intraluminal obstruction due to thrombosis can also produce symptoms and signs of SVC syndrome. Clot-related SVC obstruction is mostly associated with indwelling central venous catheter and pacemaker leads, although such thrombosis can occur spontaneously in a background of a hypercoagulable state, e.g., malignancy. Here, an unusual case of sudden onset SVC syndrome has been reported, which on initial radiologic evaluation was found to have a lung nodule without any significant mediastinal mass or adenopathy compressing SVC. Subsequent investigation with Doppler ultrasonography of the neck showed thrombosis in the right internal jugular, right subclavian and right brachiocephalic vein, which was responsible for SVC syndrome. Histopathological evaluation of lung nodule confirmed presence of an adenocarcinoma. Therefore, venous thromboembolism as a paraneoplastic syndrome should be kept in mind while evaluating a case of SVC obstruction in a cancer patient. Management of the underlying disease is of prime importance in such cases and anticoagulation is the mainstay of therapy. Ability to identify paraneoplastic syndrome may have a significant effect on clinical outcome, ranging from early diagnosis to improved quality of life of the patient.

  20. Downhill oesophageal varices resulting from superior vena cava graft occlusion after resection of a thymoma†

    Science.gov (United States)

    Inoue, Yoshimasa; Sakai, Shoji; Aoki, Teruhiro

    2013-01-01

    Downhill oesophageal varices (DEV) may occur as a rare complication of superior vena cava (SVC) obstruction. DEV are usually associated with SVC obstruction caused by systemic vasculitis or mediastinal tumours. In this report, we describe a very rare case of DEV resulting from SVC graft occlusion after resection of a thymoma. A 66-year old man with an invasive thymoma was treated by radical resection and bypass grafting from the right brachiocephalic vein to the right atrium. Occlusion of the SVC graft was diagnosed postoperatively; however, the patient could be managed conservatively. Although there had been no significant findings in the oesophagus in previous endoscopic examinations, grade F2 varices were found in the proximal oesophagus in the 19th postoperative month, and DEV caused by SVC graft occlusion was diagnosed. Until now, 2 years since the diagnosis, no apparent symptoms or deterioration of the DEV have been observed. The possible development of DEV should be borne in mind during the follow-up of patients with postoperative SVC graft occlusion. PMID:23686892

  1. Downhill esophageal varices: a prevalent complication of superior vena cava obstruction from benign and malignant causes.

    Science.gov (United States)

    Siegel, Yoel; Schallert, Erica; Kuker, Russ

    2015-01-01

    Downhill esophageal varices (DEV) usually develop secondary to superior vena cava (SVC) obstruction. Downhill esophageal varices have been less well characterized compared to uphill varices. The aim of the study was to characterize the anatomy and etiology of DEV by contrast-enhanced computed tomography. Patients with SVC obstruction were included in the study. Downhill esophageal varices were defined as discrete esophageal submucosal or mucosal vessels. Ten random computed tomographic scans were assessed as controls. Downhill esophageal varices were seen in 11 of 36 patients. Three types of varices were observed. Between 1 and 6 varices were seen in each patient with a diameter of 1 to 5 mm. Downhill esophageal varices can be seen in 30% of patients with SVC obstruction. They have several patterns and are mostly systemic-to-systemic collaterals. The most common etiology associated with DEV is renal failure. Downhill esophageal varices are of small caliber, this may in part account for less frequent bleeding compared to uphill varices.

  2. Outcome and management of pacemaker-induced superior vena cava syndrome.

    Science.gov (United States)

    Fu, Hai-Xia; Huang, Xin-Miao; Zhong, Li; Osborn, Michael J; Bjarnason, Haraldur; Mulpuru, Siva; Zhao, Xian-Xian; Friedman, Paul A; Cha, Yong-Mei

    2014-11-01

    We aimed to determine the long-term outcomes of percutaneous lead extraction and stent placement in patients with pacemaker-induced superior vena cava (SVC) syndrome. The study retrospectively screened patients who underwent lead extraction followed by central vein stent implantation at Mayo Clinic (Rochester, MN, USA), from January 2005 to December 2012, to identify the patients with pacemaker-induced SVC syndrome. Demographic, clinical, and follow-up characteristics of those patients were collected from electronic medical records. Six cases were identified. The mean (standard deviation) age was 56 (15) years (male, 67%). All patients had permanent dual-chamber pacemakers, with a mean 11-year history of pacemaker placement. The entire device system was explanted in five patients; one patient had a 21-year-old pacemaker lead that could not be removed. Eight stents were implanted in six patients: five patients had one stent, one patient had three. A new pacemaker system was reimplanted through the stented vein in five patients. Technical success was achieved in all patients, without any complication. Symptoms rapidly resolved in all patients after stent deployment. The mean follow-up duration was 48 months (range, 10-100 months). Three patients remained symptom free. Reintervention with percutaneous balloon venoplasty was successful in three patients with symptom recurrence. Percutaneous stent implantation after lead removal followed by reimplantation of leads is a feasible alternative therapy for pacemaker-induced SVC syndrome, although some cases may require repeat intervention. ©2014 Wiley Periodicals, Inc.

  3. An unusual clinical presentation resembling superior vena cava syndrome post heart surgery

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    Pellegrini Ronald

    2005-10-01

    Full Text Available Abstract Background An unusual sequence of post operative events heralded by hemodynamic deterioration followed by dyspnea and rapidly progressive dilatation of superficial neck and facial veins, resembling a superior vena cava syndrome, two days post surgical resection of filamentous aortic valve masses, closure of a patent foramen ovale, and performance of a modified Maze procedure for atrial fibrillation in a patient that presented with transient neurologic findings is presented. Case Presentation Although both clinical findings and hemodynamic derangements completely resolved following tricuspid valve repair aimed to correct the new onset severe tricuspid regurgitation noted post operatively; a clear mechanism was not readily obvious and diagnostic testing data somewhat conflictive. We present a careful retrospective examination of all clinical data and review possible clinical entities that could have been implicated in this particular case and recognize that transesophageal echocardiographic findings were most useful in identifying the best course of action. Conclusion After reviewing all clinical data and despite the inconclusive nature of test results; the retrospective examination of transesophageal echocardiographic findings proved to be most useful in identifying the best course of action. We postulate that in our case, resolution of the suspected pulmonary embolism with anticoagulation and reestablishment of a normal right ventricular geometry with tricuspid valve repair worked in unison in restoring normal hemodynamics and resolving both dyspnea and venous dilatation.

  4. Mesothelioma with superior vena cava obstruction in young female following short latency of asbestos exposure

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    Anupam Patra

    2015-01-01

    Full Text Available An 18 years female was admitted with right-sided chest pain, dry cough, and low-grade fever and weight loss for last 1 month. On examination, patient had features of superior vena cava (SVC syndrome with right-sided pleural effusion. Chest X-ray showed mediastinal widening with nonhomogenous opacity mainly in the periphery of right upper and mid zone with right-sided pleural effusion. Ultrasonography thorax confirmed mild pleural effusion. Pleural fluid analysis showed lymphocytic, exudative, low adenosine deaminase with negative for Pap smear. Contrast-enhanced computed tomography (CT thorax revealed large extensive nodular soft tissue lesion along right mediastinum as well as costal pleura, with enlarged pretracheal lymphadenopathy and SVC obstruction. CT guided Tru-cut biopsy report came as malignant epithelial tumor with polygonal shape, abundant eosinophilic cytoplasm and nuclei with prominent nucleoli suggestive of mesothelioma of epithelioid type. The tumor cell expressed calretinin, WT-1, and immunonegative for thyroid transcription factor-1.

  5. Endovascular therapy of acute tumour-related obstruction of the superior vena cava using a self-expanding Nitinol stent

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    Peter Kamusella

    2013-11-01

    Full Text Available Objective: To evaluate, in a retrospective study, the clinical efficacy and safety of the self-expanding Nitinol stent in the superior vena cava to alleviate upper venous congestion.Method: In 22 patients (15 men, 7 women, a tumour-related compression of the superior vena cava was diagnosed by spiral CT after intravenous application of contrast medium. Clinically, acute superior vena cava syndrome was found in all patients. Histologically, a bronchial carcinoma was present in 14/22, a lymphoma in 6/22, and mediastinal lymphnode metastases (1 breast carcinoma, 1 malignant melanoma in 2/22. After a transfemoral approach, cavography was initially performed. The degree of stenosis was classified according to the Stanford classification. In accordance with the degree of stenosis, a self-expanding Nitinol stent was placed.Results: Endovascular stent implantation was conducted without complications in all patients. A marked improvement in acute symptoms was observed clinically within 24 hours in all patients. In the follow-up period of up to 2 years, there were no cases of stent migration. In 7/22 patients, the CT follow-ups revealed tumour progression (3/7 after 3 months, 2/7 after 6 months, and 2/7 after 12 months with evidence of residual stenosis caused by tumour growth through the stent mesh. During the follow-up period, 15/22 patients died (mean survival 6.4 months.Conclusion: Self-expanding Nitinol stents provide endovascular therapy for superior vena cava syndrome, having a high radial expansive force and the facility to be placed precisely, and alleviating acute, life-threatening symptoms in the palliative situation.

  6. Macro-reentrant atrial tachycardia conducting through a left superior vena cava after catheter ablation in a patient with paroxysmal atrial fibrillation.

    Science.gov (United States)

    Kurotobi, Toshiya; Kino, Naoto; Tonomura, Daisuke; Shimada, Yoshihisa

    2015-01-01

    A left superior vena cava can be a cause of cardiac rhythm or conduction abnormalities, and can also be the arrhythmogenic source of atrial fibrillation (AF) with connections to the coronary sinus and left atrium. In the present study, we report a case with a macro re-entrant atrial tachycardia that coursed through the left superior vena cava after a previous AF ablation, which successfully ablated paroxysmal AF.

  7. Radiation dose is associated with prognosis of small cell lung cancer with superior vena cava syndrome

    Science.gov (United States)

    Wang, Zhen-Bo; Ning, Fang-Ling; Wang, Xiao-Le; Cheng, Yu-Feng; Dong, Xin-Jun; Liu, Chang-Min; Chen, Shao-Shui

    2015-01-01

    Approximately 10% of small cell lung cancer (SCLC) cases develop superior vena cava syndrome (SVCS). Many SCLC patients with SVCS have relatively limited disease, requiring curative rather than palliative treatment. Besides chemotherapy, radiotherapy is important for treating SCLC with SVCS. We retrospectively evaluated the influence of radiotherapy dose on the prognosis of 57 patients with SCLC with SVCS treated with concurrent chemoradiotherapy. The mean biological equivalent radiation dose was 71.5 Gy. We administered etoposide/cisplatin as sequential and concurrent chemotherapy. All patients received at least one cycle of concurrent chemotherapy. All patients had partial or complete response; SVCS-associated symptoms were reduced in 87.7% (50/57) of patients within 3-10 days after treatment. Radiation dose did not affect 2-year local control (74.2% vs. 80.8%). Patients who received high-dose radiation had a lower 2-year overall survival rate than those who received low-dose radiation (11.6 vs. 33%; P = 0.024). The high dose group median survival was 15.0 months (95% confidence interval [CI]: 11.2-19.0) compared with 18.7 months (95% CI: 13.9-23.6) in the low dose group. Grade 3/4 neutropenia occurred in 22/26 high dose patients (84.6%) and 21/31 low dose patients (67.7%). In the high dose group, 30.8% of patients had grade 3/4 esophagitis compared with 19.4% of low dose patients. Only 29.0% of low dose patients received < 4 cycles of chemotherapy in the first 12 weeks after treatment began compared with 46.2% of high dose patients. Concurrent chemoradiotherapy is a tolerable modality for treating stage IIIA/IIIB SCLC with SVCS. Moderate-dose radiotherapy is preferable. PMID:26064339

  8. Fibrin sheath angioplasty: a technique to prevent superior vena cava stenosis secondary to dialysis catheters.

    Science.gov (United States)

    Hacker, Robert I; Garcia, Lorena De Marco; Chawla, Ankur; Panetta, Thomas F

    2012-09-01

    Fibrin sheaths are a heterogeneous matrix of cells and debris that form around catheters and are a known cause of central venous stenosis and catheter failure. A total of 50 cases of central venous catheter fibrin sheath angioplasty (FSA) after catheter removal or exchange are presented. A retrospective review of an outpatient office database identified 70 eligible patients over a 19-month period. After informed consent was obtained, the dialysis catheter exiting the skin was clamped, amputated, and a wire was inserted. The catheter was then removed and a 9-French sheath was inserted into the superior vena cava, a venogram was performed. If a fibrin sheath was present, angioplasty was performed using an 8 × 4 or 10 × 4 balloon along the entire length of the fibrin sheath. A completion venogram was performed to document obliteration of the sheath. During the study, 50 patients were diagnosed with a fibrin sheath, and 43 had no pre-existing central venous stenosis. After FSA, 39 of the 43 patient's (91%) central systems remained patent without the need for subsequent interventions; 3 patients (7%) developed subclavian stenoses requiring repeat angioplasty and stenting; 1 patent (2.3%) developed an occlusion requiring a reintervention. Seven patients with prior central stenosis required multiple angioplasties; five required stenting of their central lesions. Every patient had follow-up fistulograms to document long-term patency. We propose that FSA is a prudent and safe procedure that may help reduce the risk of central venous stenosis from fibrin sheaths due to central venous catheters.

  9. Tromboembolia pulmonar asociada al síndrome de la vena cava superior de origen trombótico

    Directory of Open Access Journals (Sweden)

    Ana Madeleine Barrera-López

    2017-07-01

    Full Text Available Se describe el caso de un paciente masculino de 32 años de edad, quien consulta al servicio de urgencias con historia clínica del síndrome de la vena cava superior, en el estudio de la angiotomografía pulmonar, se demuestra embolismo pulmonar izquierdo, trombosis de la vena yugular interna derecha y confluente yugulo subclavio. No hay evidencia de asociación con neoplasia, infecciones o enfermedades del tejido conectivo, siendo el único factor de riesgo asociado para la trombosis, hiperviscocidad (tríada de virchow por poliglobulia.

  10. A case of primary mediastinal Ewing′s sarcoma /primitive neuroectodermal tumor presenting with initial compression of superior vena cava

    Directory of Open Access Journals (Sweden)

    Alessia Reali

    2013-01-01

    Full Text Available Ewing′s sarcomas and peripheral primitive neuroectodermal tumors (ES/PNETs are high grade malignant neoplasms. These malignancies are characterized by a chromosome 22 rearrangement, arise from bone or soft tissue, predominantly affect children and young adults, and are grouped in the Ewing family of tumors. Multimodality treatment programs are the treatment of choice. Primary localization of ES/PNET in the mediastinum is extremely rare. We describe a case of ES/PNET presenting as a mediastinal mass with tracheal compression and initial signs of superior vena cava in a 66-year-old woman.

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

    Science.gov (United States)

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

    2016-01-01

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

  12. Superior vena cava syndrome associated with right-to left shunt through systemic-to-pulmonary venous collaterals

    Energy Technology Data Exchange (ETDEWEB)

    Juan, Yu Hsiang; Saboo, Sachin S.; Anand, Vishal; Chatzizisis, Yiannis S.; Steigner, Michael L. [Brigham and Women' s Hospital, Harvard Medical School, Boston (United States); Lin, Yu Ching [Chang Gung Memorial Hospital, Keelung and Chang Gung University, Keelung (China)

    2014-04-15

    Superior vena cava (SVC) obstruction is associated with the gradual development of venous collaterals. We present a rare form of systemic-to-pulmonary subpleural collateral pathway that developed in the bridging subpleural pulmonary veins in a 54-year-old woman with complete SVC obstruction. This uncommon collateral pathway represents a rare form of acquired right-to-left shunt due to previous pleural adhesions with an increased risk of stroke due to right-to-left venous shunting, which requires lifelong anticoagulation.

  13. Single lead catheter of implantable cardioverter-defibrillator with floating atrial sensing dipole implanted via persistent left superior vena cava.

    Science.gov (United States)

    Malagù, Michele; Toselli, Tiziano; Bertini, Matteo

    2016-04-26

    Persistent left superior vena cava (LSVC) is a congenital anomaly with 0.3%-1% prevalence in the general population. It is usually asymptomatic but in case of transvenous lead positioning, i.e., for pacemaker or implantable cardioverter defibrillator (ICD), may be a cause for significant complications or unsuccessful implantation. Single lead ICD with atrial sensing dipole (ICD DX) is a safe and functional technology in patients without congenital abnormalities. We provide a review of the literature and a case report of successful implantation of an ICD DX in a patient with LSVC and its efficacy in treating ventricular arrhythmias.

  14. Single lead catheter of implantable cardioverterdefibrillator with floating atrial sensing dipole implanted via persistent left superior vena cava

    Institute of Scientific and Technical Information of China (English)

    Michele Malagù; Tiziano Toselli; Matteo Bertini

    2016-01-01

    Persistent left superior vena cava(LSVC) is a congenital anomaly with 0.3%-1% prevalence in the general population. It is usually asymptomatic but in case of transvenous lead positioning, i.e., for pacemaker or implantable cardioverter defibrillator(ICD), may be a cause for significant complications or unsuccessful implantation. Single lead ICD with atrial sensing dipole(ICD DX) is a safe and functional technology in patients without congenital abnormalities. We provide a review of the literature and a case report of successful implantation of an ICD DX in a patient with LSVC and its efficacy in treating ventricular arrhythmias.

  15. Vertebral uptake of Tc-99m macroaggregated albumin (MAA) with SPECT/CT occurring in superior vena cava obstruction

    Energy Technology Data Exchange (ETDEWEB)

    Karls, Shawn; Hassoun, Hani; Derbekyan, Vilma [Dept. of Nuclear Madicine, Royal Victoria Hospital, Montreal (Canada)

    2016-09-15

    A 67-year-old male presented with dyspnea for which lung scintigraphy was ordered to rule out pulmonary embolus. Planar images demonstrated abnormal midline uptake of Tc-99m macroaggregated albumin, which SPECT/CT localized to several thoracic vertebrae. Thoracic vertebral uptake on perfusion lung scintigraphy was previously described on planar imaging. Radionuclide venography and contrast-enhanced CT subsequently demonstrated superior vena cava (SVC) obstruction with collateralization through the azygous/hemiazygous system and vertebral venous plexus. SPECT/CT differentiated residual esophageal/tracheal ventilation activity, a clinically insignificant finding, from vertebral uptake indicative of SVC obstruction, a potentially life-threatening condition.

  16. Therapeutic approach to "downhill" esophageal varices bleeding due to superior vena cava syndrome in Behcet's disease: a case report

    Directory of Open Access Journals (Sweden)

    Haghighi Mahshid

    2006-12-01

    Full Text Available Abstract Background One of the rare presentations of superior vena cava syndrome is bleeding of "downhill" esophageal varices (DEV and different approaches have been used to control it. This is a case report whose DEV was eradicated by band ligation for the first time. Case presentation We report a 42-year-old man who is a known case of Behcet's disease. The patient's first presentation was superior vena cava syndrome due to thrombosis followed by bipolar ulcers and arthralgia. He received warfarin, prednisolone and azathioprine. The clinical course of the patient was complicated by one episode of hematemesis without abdominal pain when the patient's PT was in therapeutic range. After resuscitation and correction of PT with fresh frozen plasma transfusion, upper gastrointestinal endoscopy was done. Prominent varices were seen in the upper third of the esophagus, tapering to the middle part without acute bleeding. Stomach and duodenum were normal. Color ultrasonography evaluation of the portal, hepatic and splenic veins was negative for thrombosis. Band ligation was done and the patient's bleeding did not recur. Conclusion Band ligation is a safe and effective method for controlling DEV bleeding in patients with uncorrectable underlying disorders.

  17. Therapeutic approach to "downhill" esophageal varices bleeding due to superior vena cava syndrome in Behcet's disease: a case report

    Science.gov (United States)

    Tavakkoli, Hamid; Asadi, Mehrnaz; Haghighi, Mahshid; Esmaeili, Abbas

    2006-01-01

    Background One of the rare presentations of superior vena cava syndrome is bleeding of "downhill" esophageal varices (DEV) and different approaches have been used to control it. This is a case report whose DEV was eradicated by band ligation for the first time. Case presentation We report a 42-year-old man who is a known case of Behcet's disease. The patient's first presentation was superior vena cava syndrome due to thrombosis followed by bipolar ulcers and arthralgia. He received warfarin, prednisolone and azathioprine. The clinical course of the patient was complicated by one episode of hematemesis without abdominal pain when the patient's PT was in therapeutic range. After resuscitation and correction of PT with fresh frozen plasma transfusion, upper gastrointestinal endoscopy was done. Prominent varices were seen in the upper third of the esophagus, tapering to the middle part without acute bleeding. Stomach and duodenum were normal. Color ultrasonography evaluation of the portal, hepatic and splenic veins was negative for thrombosis. Band ligation was done and the patient's bleeding did not recur. Conclusion Band ligation is a safe and effective method for controlling DEV bleeding in patients with uncorrectable underlying disorders. PMID:17192182

  18. Thrombosis of the superior vena cava and auxiliary branches in patients with indwelling catheterization of the internal jugular vein

    Institute of Scientific and Technical Information of China (English)

    LI Han; WANG Shi-xiang; WANG Wei; XU Chen; SHEN Shen; YU Ling; ZHANG Gui-zhi

    2009-01-01

    Background Central venous thrombosis is a serious and life-threatening complication in hemodialysis (HD) patients with an indwelling catheter. The present study aimed to investigate the prevalence and characteristics of thrombosis of the superior vena cava and auxiliary branches in Chinese HD patients with an indwelling internal jugular venous catheter and to explore its risk factors.Methods Fifty-four patients on maintenance hemodialysis (MHD) with an indwelling catheter were enrolled in this cross-sectional study. The thrombosis of the internal jugular vein, subclavical vein, brachiocephalic vein and superior vena cava was assessed by vascular ultrasound. Collected were data on age, gender, ultrafiltration volume, Kt/V, blood pressure, levels of hemoglobin, serum albumin, lipid, calcium, and phosphorus, and parathyroid hormone.Results The patients were given short- or long-term double lumen central venous catheters. Among them, 42 patients had the catheter placed into the right internal jugular vein, and 12 patients into the left internal jugular vein. Different degrees of central venous thrombosis were found in 33 patients (61.1%). The prevalence of thrombosis in the jugular vein, brachiocephalic vein, subclavical vein and superior vena cava was 61.1% (33/54), 44.4% (24/54), 16.7% (9/54) and 5.6% (3/54), respectively. Among the 33 HD patients with central venous thrombosis, the percentages for one, two, three and four affected veins were 27.3% (9/33), 45.4% (15/33), 18.2% (6/33) and 9.1% (3/33), respectively. Twelve (12/33, 36.4%) of the 33 HD patients with central venous thrombosis had clinical symptoms. Nine patients (27.3%) had edema of the upper extremity and 3 (9.1%) had new-onset symptoms of pulmonary embolism such as cough, chest distress and short breath. The incidences of diabetes mellitus and malignant tumor and levels of lipoprotein a and homocysteic acid were significantly higher in the HD patients with central venous thrombosis than in those without

  19. Conservative management of iatrogenic superior vena cava (SVC) perforation after attempted dialysis catheter placement: case report and literature review.

    Science.gov (United States)

    Kabutey, Nii-Kabu; Rastogi, Neeraj; Kim, Ducksoo

    2013-01-01

    A 68-year-old male with end-stage renal disease, congestive heart failure, and facial and bilateral arm swelling was referred for placement of a tunneled dialysis catheter. Distal left subclavian vein access was obtained. The procedure was complicated by iatrogenic perforation of the superior vena cava (SVC). This resulted in rapid development of a right-sided hemothorax and hemodynamic instability. A right-sided thoracostomy tube was placed to drain the pleural cavity. Extrapericardial perforation of the SVC can be managed conservatively in select cases without endovascular balloon dilatation and/stent graft deployment or surgical repair provided the antegrade blood flow is maintained via patent collateral circulation. Copyright © 2013 Elsevier Inc. All rights reserved.

  20. Contrast-enhanced fluorodeoxyglucose positron emission tomography/contrast-enhanced computed tomography in mediastinal T-cell lymphoma with superior vena cava syndrome.

    Science.gov (United States)

    Santhosh, Sampath; Gorla, Arun Kumar Reddy; Bhattacharya, Anish; Varma, Subhash Chander; Mittal, Bhagwant Rai

    2016-01-01

    Positron emission tomography-computed tomography (PET/CT) is a routine investigation for the staging of lymphomas. Contrast-enhanced computed tomography is mandatory whenever parenchymal lesions, especially in the liver and spleen are suspected. We report a rare case of primary mediastinal T-cell lymphoma evaluated with contrast-enhanced PET/CT that showed features of superior vena cava syndrome.

  1. Treatment of a coronary artery to superior vena cava fistula resulting from early closure of a Possis Perma-Flow graft.

    Science.gov (United States)

    Graham, M M; Kells, C M; Sullivan, J; O'Neill, B J

    1999-06-01

    The Perma-Flow graft used in bypass surgery achieves more complete revascularization when paucity of native conduits exists. We report a coronary artery to superior vena cava fistula as a complication of this graft, leading to severe right heart failure. The fistula was successfully occluded percutaneously, improving the patient's clinical situation.

  2. The use of HeRo catheter in catheter-dependent dialysis patients with superior vena cava occlusion.

    Science.gov (United States)

    Davis, Kathryn L; Gurley, John C; Davenport, Daniel L; Xenos, Eleftherios S

    2016-01-01

    Hemodialysis (HD) patients with superior vena cava (SVC) occlusion have limited access options. Femoral access is commonly employed but is associated with high complication rates. Hemodialysis Reliable Outflow (HeRO) catheters can be used in tunneled catheter-dependent (TCD) patients who have exhausted other access options. The HeRO graft bypasses occlusion and traverses stenosis with outflow directly into the central venous circulation. At our institution we have used the inside-out central venous access technique (IOCVA) to traverse an occluded vena cava for HeRO graft placement. We review our experience with this technique. A retrospective chart review was conducted of patients with HeRO graft placement at our institution. All were dependent on a tunneled femoral dialysis catheter due to central venous occlusion (CVO). The IOCVA technique was used in each case. This technique was used as last resort for patients who had no other dialysis access option. Demographics, patency rates, complications, and mortality were recorded. A total of 11 HeRO grafts were placed in 11 patients from January 2012 to June 2013, with 100% technical success rate. Three grafts were ligated due to steal syndrome. Two grafts were lost due to thrombosis. Five of 11 patients experienced a 30-day complication. Three patients died within the follow-up period; however, none were directly related to the graft placement. Follow up range was 65-573 days; 5 of 11 grafts were used for dialysis at the end of the follow-up period. The 12-month patency rate was 30%. HeRO grafts are one option for dialysis patients with CVO. There is, however, a high incidence of steal syndrome and other complications. These grafts should be offered as a final potential alternative to catheter dependence.

  3. Primary Mediastinal Synovial Sarcoma Presenting as Superior Vena Cava Syndrome: A Rare Case Report and Review of the Literature

    Directory of Open Access Journals (Sweden)

    Irappa Madabhavi

    2015-01-01

    Full Text Available Primary mediastinal sarcomas are aggressive tumors with a very rare incidence. This report describes the case of a 35-year-old male patient who presented with acute symptoms of dyspnoea, facial puffiness, voice-hoarseness, and engorged neck veins. With the clinical picture consistent with the superior vena cava (SVC syndrome, the patient was investigated with computed tomography of the chest. This revealed a large soft tissue density mass lesion compressing the SVC along with other critical superior mediastinal structures. Histopathological evaluation of the mass revealed features consistent with a soft tissue sarcoma and positive staining was observed for vimentin and S-100. Cytogenetic analysis by fluorescent in situ hybridisation (FISH demonstrated the t(X:18 translocation. Thus diagnosis was established as primary mediastinal synovial sarcoma. Patient was treated with three cycles of neoadjuvant chemotherapy, to which there was a partial response as per the RECIST criteria. Surgical excision of the mediastinal mass was performed, and further postoperative treatment with adjuvant chemoradiotherapy was provided. Patient currently is free of disease. This is to the best of our knowledge the first report in the world literature of a successfully treated case of “primary mediastinal sarcomas presenting as SVC syndrome.” Patient is under regular surveillance at our clinic and remains free of recurrence one year after treatment completion.

  4. Systematic review and meta-analysis of persistent left superior vena cava on prenatal ultrasound: associated anomalies, diagnostic accuracy and postnatal outcome.

    Science.gov (United States)

    Gustapane, S; Leombroni, M; Khalil, A; Giacci, F; Marrone, L; Bascietto, F; Rizzo, G; Acharya, G; Liberati, M; D'Antonio, F

    2016-12-01

    high-risk pregnancies, the rate of associated abnormalities is likely to be higher than that in the general population of fetuses with PLSVC, for which more data are needed. Revisión sistemática y metaanálisis de la persistencia de la vena cava superior izquierda en la ecografía prenatal: anomalías asociadas, precisión del diagnóstico y resultado postnatal RESUMEN OBJETIVOS: Cuantificar la prevalencia de anomalías cromosómicas en fetos con vena cava superior izquierda persistente (VCSIP), evaluar la solidez de la asociación entre la VCSIP y la coartación aórtica, y determinar la precisión del diagnóstico de la ecografía prenatal como método para identificar correctamente casos aislados de VCSIP. MÉTODOS: Se buscó en las bases de datos de MEDLINE, EMBASE, CINHAL y Cochrane artículos publicados desde el año 2000 en adelante, usando combinaciones de las palabras clave "vena cava superior izquierda" y "resultado". Dos de los autores revisaron de forma independiente todos los resúmenes encontrados. La evaluación de calidad de los estudios incluidos se realizó mediante la escala Newcastle-Ottawa para estudios de cohortes. Se analizaron las tasas de los siguientes resultados: anomalías cromosómicas; anomalías intracardíacas (AIC) y anomalías extracardíacas (AEC) asociadas diagnosticadas prenatalmente; AIC y AEC adicionales detectadas sólo en ecografías postnatales o mediante evaluación clínica, pero no observadas en ecografías prenatales; y la asociación entre la VCSIP y la coartación aórtica. Se utilizó un meta-análisis de proporciones para combinar los datos. En total, se identificaron 2708 artículos y se incluyeron 13 (n = 501) en la revisión sistemática. En la ecografía prenatal o en una revisión de seguimiento se detectaron AIC y AEC asociadas en el 60,7% (IC 95%, 44,2-75,9%) y el 37,8% (IC 95%, 31,0-44,8%) de los casos, respectivamente. Se produjeron anomalías cromosómicas en el 12,5% (IC 95%, 9,0-16,4%) de los casos en

  5. Suction against resistance: a new breathing technique to significantly improve the blood flow ratio of the superior and inferior vena cava.

    Science.gov (United States)

    Gutzeit, Andreas; Roos, Justus E; Hergan, Klaus; von Weymarn, Constantin; Wälti, Stephan; Reischauer, Carolin; Froehlich, Johannes M

    2014-12-01

    Optimal contrast within the pulmonary artery is achieved by the maximum amount of contrast-enhanced blood flowing through the superior vena cava (SVC), while minimum amounts of non-contrasted blood should originate from the inferior vena cava (IVC). This study aims to clarify whether "suction against resistance" might optimise this ratio. Phase-contrast pulse sequences on a 1.5T MRI magnet were used for flow quantification (mean flow (mL/s), stroke volume (Vol) in the SVC and IVC in volunteers. Different breathing manoeuvers were analysed repeatedly: free breathing; inspiration; expiration; suction against resistance, and Valsalva. To standardise breathing commands, volunteers performed suction and Valsalva manoeuvers with an MR-compatible manometer. Suction against resistance was associated with a significant drop of the IVC/SVC flow quotient (1.63 [range 1.3-2.0] p  0.05). Suction against resistance caused a significant drop in the IVC/SVC quotient. Theoretically, this breathing manoeuver might significantly improve the enhancement characteristics of CT angiography. Suction provokes reduction in blood flow in the inferior vena cava. Ratio between the inferior and superior vena cava blood flow diminished during suction. Manometer used during breathing standardises MR phase-contrast blood flow measurements.

  6. Three-dimensional reconstructed magnetic resonance imaging for diagnosing persistent left superior vena cava. Comparison with magnetic resonance angiography and plain chest radiography

    Energy Technology Data Exchange (ETDEWEB)

    Koito, Hitoshi; Suzuki, Junichi; Ohkubo, Naohiko; Ishiguro, Yuka; Iwasaka, Toshiji; Inada, Mitsuo; Nakano, Yoshihisa [Kansai Medical Univ., Moriguchi, Osaka (Japan)

    1996-09-01

    The usefulness of low-cost, three-dimensional (3D) images reconstructed from magnetic resonance (MR) imaging for investigating persistent left superior vena cava was assessed and compared to the diagnostic accuracy of chest radiography. MR imaging by the spin-echo technique and MR angiography were performed in 10 patients with this anomaly diagnosed previously by contrast echocardiography and radionuclide angiocardiography. Four patients had complicating cardiac anomalies, one with postoperative atrial septal defect, one with postoperative ventricular septal defect, one with atrial septal defect and partial anomalous pulmonary venous return, and one with aortic coarctation and patent ductus arteriosus. Multisectional and multiphasic MR images were used for the 3D-reconstruction of the cardiovascular and mediastinal structures with a NeXT workstation and a 3D-kit. The 3D-reconstructed MR imaging clearly showed the persistent left superior vena cava and the anatomical relationship with the other cardiovascular and mediastinal structures in all 10 patients. Vascular shadows were observed outside the upper left border of the aortic arch on the chest radiographs in seven patients, and the 3D-reconstructed MR images revealed these shadows to be compatible with superior caval vein. The ratios of the diameter between the left and right superior venae cavae with and without the left innominate vein were 0.63{+-}0.14 (mean{+-}SD) and 0.94{+-}0.08, respectively. Three-dimensional reconstructed MR imaging is a useful method for recognizing persistent left superior vena cava and precise examination of the chest radiographs often allowed detection of the vascular shadows caused by this anomaly. (author)

  7. Percutaneous transluminal angioplasty in a patient with chronic cerebrospinal venous insufficiency and persistent left superior vena cava.

    Science.gov (United States)

    Lupattelli, T; Benassi, F; Righi, E; Bavera, P; Bellagamba, G

    2014-04-01

    Chronic cerebrospinal venous insufficiency (CCSVI) is a syndrome characterized by stenoses of the internal jugular veins (IJVs) and/or azygos veins and formation of collateral venous channels. A case of a 57-year-old patient with CCSVI in whom the venous outflow from the left IJV to the right atrium occurred through a venous anomaly, the persistent left superior vena cava (PLSVC), is reported. PLSVC is caused by persistence of the left anterior cardinal vein that drains blood from the limb effluent from the left and the left side of head and neck into coronary sinus (Type a), or in the left atrium (Type b). PLSVC can be associated either with innominate vein hypoplasia or other congenital heart abnormalities. Because of evidence of left innominate vein hypoplasia, angioplasty was not performed using the ordinary route but passing with the balloon directly through the PLSVC up to the left IJV. Finally, angioplasty was carried out in a standard manner in the right IJV as well as in the azygous vein. Confirmation angiogram revealed complete reopening of all treated vessels with no evidence of peri- and postoperative complications. The patient was discharged home the following day in good general conditions. PLSVC is a rare congenital vein anomaly but in case of concomitant innominate vein hypoplasia may prove to be a valuable alternative to treat patients with IJV diseases.

  8. The characteristics of action potential and nonselec-tive cation current of cardiomyocytes in rabbit superior vena cava

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    As a special focus in initiating and maintaining atrial fibrillation (AF), cardiomyocytes in superior vena cava (SVC) have distinctive electrophysiological characters. In this study, we found that comparing with the right atrial (RA) cardiomyoctyes, the SVC cardiomyoctyes had longer APD90 at the different basic cycle lengths; the conduction block could be observed on both RA and SVC cardiomyoctyes. A few of SVC cardiomyoctyes showed slow response action potentials with automatic activity and some others showed early afterdepolarization (EAD) spontaneously. Further more, we found that there are nonselective cation current (INs) in both SVC and RA cardiomyocytes. The peak density of INs in SVC cardiomyocytes was smaller than that in RA cardiomyocytes. Removal of extracellular divalent cation and glucose could increase INs in SVC cardiomyocytes. The agonist or the antagonist of INs may in-crease or decrease APD. To sum up, some SVC cardiomyocytes possess the ability of spontaneous activity; the difference of transmembrane action potentials between SVC and RA cardiomyocytes is partly because of the different density of INs between them; the agonist or the antagonist of INs can in-crease or decrease APD leading to the enhancement or reduction of EAD genesis in SVC cardiomyo-cytes. INs in rabbit myocytes is fairly similar to TRPC3 current in electrophysiological property, which might play an important role in the mechanisms of AF.

  9. Downhill oesophageal variceal bleeding: A rare complication in Behçet's disease-related superior vena cava syndrome.

    Science.gov (United States)

    Ennaifer, Rym; B'chir Hamzaoui, Saloua; Larbi, Thara; Romdhane, Hayfa; Abdallah, Maya; Bel Hadj, Najet; M'rad, Sander

    2015-03-01

    Behçet's disease (BD) is a multisystemic disorder that involves vessels of all sizes. Superior vena cava (SVC) thrombosis is a rare complication that can lead to the development of various collateral pathways. A 31-year-old man presented with SVC syndrome. He had a history of recurrent genital aphthosis. Computed tomography revealed extensive thrombosis of the right internal jugular, axillary, and subclavian veins with collateral circulation. The patient was diagnosed with BD, and he was started on anticoagulation and immunosuppressive therapy. One week later, he presented with haematemesis. Upper gastrointestinal endoscopy disclosed varices in the upper third of the oesophagus with stigmata of recent bleeding. Portal hypertension was ruled out. Anticoagulation therapy was discontinued. He was discharged on immunosuppressive therapy. Bleeding from downhill oesophageal varices should be suspected in any patient presenting with upper gastrointestinal bleeding and a history of SVC syndrome due to BD. Copyright © 2015 Arab Journal of Gastroenterology. Published by Elsevier B.V. All rights reserved.

  10. The characteristics of action potential and nonselective cation current of cardiomyocytes in rabbit superior vena cava

    Institute of Scientific and Technical Information of China (English)

    WANG Pan; YANG XinChun; LIU XiuLan; BAO RongFeng; LIU TaiFeng

    2008-01-01

    As s special focus in initiating and maintaining atrial fibrillation (AF), cardiomyocytes in superior vena cavs (SVC) have distinctive electrophysiological characters. In this study, we found that comparing with the right atrial (RA) cardiomyoctyes, the SVC cardiomyoctyes had longer APD90 at the different basic cycle lengths; the conduction block could be observed on both RA and SVC cardiomyoctyes. A few of SVC cardiomyoctyes showed slow response action potentials with automatic activity and some others showed early afterdepolarization (EAD) spontaneously. Further more, we found that there are nonselective cation current (INs) in both SVC and RA cardiomyocytes. The peak density of INs in SVC cardiomyocytes was smaller than that in RA cardiomyocytes. Removal of extracellular divalent cation and glucose could increase INs in SVC cardiomyocytes. The agonist or the antagonist of INs may increase or decrease APD. To sum up, some SVC cardiomyocytes possess the ability of spontaneous activity; the difference of transmembrane action potentials between SVC and RA cardiomyocytes is partly because of the different density of INs between them; the agonist or the antagonist of INs can increase or decrease APD leading to the enhancement or reduction of EAD genesis in SVC cardiomyocytes. INs in rabbit myocytes is fairly similar to TRPC3 current in electrophysiological property, which might play an important role in the mechanisms of AF.

  11. Cerebral tissue oxygenation index and superior vena cava blood flow in the very low birth weight infant.

    LENUS (Irish Health Repository)

    Moran, M

    2012-02-01

    BACKGROUND: Superior vena cava (SVC) flow assesses blood flow from the upper body, including the brain. Near infrared spectroscopy (NIRS) provides information on brain perfusion and oxygenation. AIM: To assess the relationship between cerebral tissue oxygenation index (cTOI) and cardiac output measures in the very low birth weight (VLBW) infant in the first day of life. METHODS: A prospective observational cohort study. Neonates with birth weight less than 1500 g (VLBW) were eligible for enrollment. Newborns with congenital heart disease, major congenital malformations and greater than Papile grade1 Intraventricular Haemorrhage on day 1 of life were excluded. Echocardiographic evaluation of SVC flow was performed in the first 24 h of life. Low SVC flow states were defined as a flow less than 40 mL\\/kg\\/min. cTOI was measured using NIRO 200 Hamamatsu. RESULTS: Twenty-seven VLBW neonates had both echocardiography and NIRS performed. The median (range) gestation was 29\\/40 (25 + 3 to 31 + 5 weeks) and median birth weight was 1.2 kg (0.57-1.48 kg). The mean (SD) TOI was 68.1 (7.9)%. The mean (SD) SVC flow was 70.36(39.5) mLs\\/kg\\/min. The correlation coefficient of cerebral tissue oxygenation and SVC flow was r = 0.53, p-value 0.005. There was a poor correlation between right and left ventricular output and cTOI which is not surprising considering the influence of intra- and extracardiac shunts. CONCLUSION: There is a positive relationship between cerebral TOI values and SVC flow in the very low birth infant on day one of life.

  12. Serum cortisol values, superior vena cava flow and illness severity scores in very low birth weight infants.

    LENUS (Irish Health Repository)

    Miletin, J

    2012-02-01

    OBJECTIVE: Recent evidence suggests that high cortisol concentrations are associated with increased morbidity and mortality in very low birth weight (VLBW) infants. Neonatal illness severity and mortality risk scores are reliable in predicting morbidity and mortality. The objectives were (i) to assess the correlation between serum cortisol levels and clinical assessment of multi-organ dysfunction\\/illness severity scores (CRIB II, SNAPPE-II and neonatal multiple organ dysfunction score (NEOMOD)) in first 24 h in VLBW infants and (ii) to assess the relationship between surrogates of end organ blood flow and serum cortisol levels. STUDY DESIGN: A prospective observational cohort study. Neonates with birth weight <1500 g were eligible for enrollment. Echocardiography evaluation of superior vena cava (SVC) flow was carried out in the first 24 h life. Cortisol levels were measured simultaneously and appropriate clinical scores were calculated. RESULT: A total of 54 VLBW neonates were enrolled following parental consent. Two patients were excluded because of congenital malformations. In 14 babies the cortisol value was not simultaneously obtained. The mean birth weight was 1.08 kg, mean gestational age was 27.8 weeks. There was a significant correlation between cortisol and NEOMOD score (P=0.006). There was no correlation between cortisol and CRIB II score (P=0.34), SVC flow (P=0.49) and mean arterial blood pressure respectively (P=0.35). CONCLUSION: There was no correlation between SVC flow and cortisol values or between cortisol and mean blood pressure values. There was a significant correlation between cortisol levels and neonatal organ dysfunction score evaluated suggesting that stressed VLBW infants do mount a cortisol response.

  13. Iatrogenic migration of VenaTech LP IVC filter to superior vena cava secondary to guidewire entrapment: case report and review of literature.

    Science.gov (United States)

    Almestady, Rajaa; Spain, James; Bayona-Molano, Maria Del Pilar; Wang, Weiping

    2013-01-01

    Modern inferior vena cava (IVC) filters are generally safe devices for preventing pulmonary embolus, with fewer complications compared to earlier techniques of caval interruption. Despite continuing improvement in filter designs and insertion methods, complications still occur. The IVC filter complications resulting from iatrogenic causes are rare and include but are not limited to misplacement, filter tilting, incomplete deployment, and filter migration. We recently experienced a problem in which the Vena Tech LP filter (B. Braun, Bethlehem, Pennsylvania) migrated to the superior vena cava (SVC) immediately after successful deployment of the filter in the infrarenal venacava. The root cause analysis of this case revealed that the complication was related to blind pullout of the J-tipped guidewire following deployment of the filter in the IVC. This report highlights the potential risks of using a wire while an IVC filter is in place.

  14. A Primary Primitive Neuroectodermal Tumor Arising from Left Subclavian Vein and Extending along Left Brachiocephalic Vein and Superior Vena Cava into Right Atrium.

    Science.gov (United States)

    Wang, Jian; Wang, Weici; Li, Yiqing; Jin, Bi; Yu, Miao; Liu, Wenqi; Yao, Shaohua; Liao, Yonggui; Ouyang, Chenxi

    2015-01-01

    Primitive neuroectodermal tumor (PNET) is an extremely rare malignancy thought to be derived from fetal neuroectodermal precursor cells. It usually occurs in central and peripheral nervous system or soft tissue and bone, while intravenous or intracavitary PNET is considered as an extremely rare tumor. We reported a case of a 44-year-old woman who presented with the left unilateral facial and neck swelling. Magnetic resonance imaging revealed a tape-shaped solid mass within left subclavian vein, left brachiocephalic vein, superior vena cava, and right atrium; the proximal end proportion occupied almost the entire right atrium with a pedicle flip protruded into the right ventricle. Ultrasonography revealed an irregular hypoechnoic mass arising from the left subclavian vein, which extended along the left brachiocephalic vein and superior vena cava into the right atrium and up to the right ventricle. Positron emission tomography-computed tomography revealed several hypermetabolic thyroid nodules with no evidence of intravenous hyperactive lesion. The patient underwent tumor resection under cardiopulmonary bypass. At 15 days postoperatively, total thyroidectomy and resection of the left subclavian vein were simultaneously performed. The patient received chemotherapy and radiotherapy later. Histologically, the neoplasm displayed small, round, blue cells with hyperchromatic nuclei and scant cytoplasm. The neoplastic cells showed a strong immunopositivity for CD99, synaptophysin, CD56, CD57, and friend leukemia integration 1, thus confirming a diagnosis of the PNET. Histopathological examination of the thyroid showed papillary carcinoma. Thus, this PNET had no definitive organ or tissue of origin, which primarily originated from the left subclavian vein with tumor extension along the superior vena cava to the right ventricle.

  15. Replacement of Superior Vena Cava in the Treatment of Chest Tumor%上腔静脉置换术在胸腔肿瘤中的应用

    Institute of Scientific and Technical Information of China (English)

    朱鹏志; 王平; 桂龙生; 李永武; 彭浩; 熊健

    2011-01-01

    Objective To evaluate and summarize the clinical experience of the vessel resection and reconstruction in surgical management of malignant superior vena cava syndrome (SVCS). Methods Five patients with SVC being invaded by tumors were included and analyzed retrospectively in this study. Among them locally advanced lung cancer was in three cases, invasive thymoma in two cases. The primary tumor was totally resected in all patients. Replacement of SVC with Gore-Tex vascular prosthesis was performed in all patients. Result All of the cases had no intraoperative and early postoperative death and complications. Conclusion For local advanced malignant tumors invading superior vena cava without distant metastasis, expanded resection including replacement of superior vena cava with artificial blood vessel can raise operative excision rate, relieve clinical symptoms and increase the survival rate time.%目的 探讨和总结上腔静脉置换治疗晚期胸腔恶性肿瘤的临床经验,并评价其疗效.方法 回顾性分析5例上腔静脉受到肿瘤侵犯患者的手术经验.其中局部晚期肺癌3例、侵袭性胸腺瘤2例.术中行原发肿瘤和受累上腔静脉全部切除并重建上腔静脉.结果 全组无手术死亡及术后早期死亡,无严重并发症.结论 对于无远处转移、侵犯上腔静脉的局部晚期恶性肿瘤,采用包括上腔静脉置换在内的扩大切除术,可以提高手术切除率,缓解临床症状,延长生存期.

  16. Surgical treatment of superior vena cava syndrome%上腔静脉综合征的外科治疗

    Institute of Scientific and Technical Information of China (English)

    韩志军; 任华; 戈烽; 李单青; 张志庸

    2008-01-01

    Objective To analyze the clinical features,especially surgical treatment of superior vena cava syndrome(SVCS).Methods The clinical data of 26 patients with SVCS,19 males and 7 females,aged 37(19-63),diagnosed base on the space occupying lesion in mediastinum and complete or incomplete obstruction of SVC and/or innominate vein by imaging examination without evidence of tumor in other parts and without evidence of lymphoma in the mediastinal lesion by pathological examination,who underwent surgical treatment were analyzed,focusing on the clinical presentation,preoperative examination,surgical treatment,pathological diagnosis,and survival.Results Facial cyanosis and edema,cervical and chest wall varicose veins.headache and dizziness,cough and dyspnea were the most common clinical manifestations.Pre-operative percutaneous needle biopsy guided by CT confirmed the diagnoses of malignant tumor of mediastinum in 6 cases and definite diagnoses failed to be got in the other 20 cases.Resection of the primary lesions combined with artificial blood vessel replacement of SVC was performed.Twenty patients received complete resection,and 6 received only incomplete excision because of extensiveness of lesions.The mean survival time of the former group was 30 months,significantly longer than that of the latter group (11 months,P=0.0036).The overall 1-year survival rate was 69.2%,and 5-year survival rate was 7.6%.Conclusion Resection procedure is an important factor influencing the prognosis of SVCS.%目的 总结上腔静脉综合征(SVCS)的外科治疗经验.方法 回顾性分析手术治疗的26例SVCS患者(男19例,女7例,年龄19~63岁)的临床资料,包括临床表现、术前检查、手术方法、术后病理诊断和生存时间.病例纳入标准为影像学检查提示纵隔占位以及上腔静脉和(或)无名静脉部分或完全梗阻,无其他部位肿瘤,纵隔病变经组织病理学检查无明确淋巴瘤的证据.结果 常见临床表现为颜面及颈

  17. Cambiar paradigmas: una experiencia en educación superior

    Directory of Open Access Journals (Sweden)

    Gisella Vargas Chinchilla

    2004-09-01

    Full Text Available

    Resumen. Una experiencia en educación superior, al estilo de investigación-acción, donde una “comunidad de aprendizaje” constituida por docentes y estudiantes, busca convertirse en entes multiplicadores del desarrollo sostenible, dentro del plan de formación de docentes de Educación Preescolar.

    Esta investigación constituye el Trabajo final de Graduación, requisito de un grupo de estudiantes para obtener el grado de Licenciadas en Educación Preescolar, en la Universidad de Costa Rica. El proceso metodológico dio inicio con un diagnóstico, para seguir con un plan de acción, organizado y desarrollado en conjunto, estudiantes y docentes, para culminar con la aceptación de “compromisos ambientales” asumidos por las personas participantes.

     

    Abstract. This is a research-action type of experience in higher education lived by a “learning community” conformed by teachers and students whose aim is to become fostering agents for sustainable development. The experience was carried out as part of the plan for teacher training in Preschool Education.

    This paper is the authors' Final Graduation Paper, a requirement to obtain a Licentiate degree in Preschool Education at the University of Costa Rica. The research began with a diagnosis that would lead to the implementation of an action plan that was organized and carried out jointly by the students and their teachers. The project finished with the participants' acceptance of some “environmental commitments”.

  18. Comunicação interatrial do tipo seio coronário, comunicação interventricular e ausência de veia cava superior esquerda Coronary sinus atrial septal defect and ventricular septal defect with no left superior vena cava

    Directory of Open Access Journals (Sweden)

    Fábio Alves Almeida

    1998-10-01

    Full Text Available Relatamos um caso raro de um paciente de 21 meses, portador de comunicação interatrial do tipo seio coronário, associada a comunicação interventricular perimembranosa, e ausência de veia cava superior esquerda. O diagnóstico foi realizado através da ecocardiografia e confirmado pela angiografia. O paciente foi operado sem intercorrências, ambos os defeitos foram fechados com patch de pericárdio bovino e o fluxo das veias coronárias ficou direcionado para o átrio esquerdo. Um ecocardiograma mostrou ausência de shunt residual através dos defeitos.We report a rare case of a 21 month old child with a coronary sinus atrial septal defect associated with perimembranous ventricular septal defect and no left superior vena cava. The diagnosis was made by transthoracic echocardiogram and confirmed by angiography. The patient was operated on uneventfully, both defects were closed with bovine pericardial patches and the flow from the coronary veins was directed towards the left atrium. An echocardiogram revealed complete closure of both defects.

  19. Suction against resistance: a new breathing technique to significantly improve the blood flow ratio of the superior and inferior vena cava

    Energy Technology Data Exchange (ETDEWEB)

    Gutzeit, Andreas [Clinical Research Unit of St. Anna Hospital Luzern, Institute of Radiology and Nuclear Medicine, Luzern (Switzerland); Paracelsus Medical University Salzburg, Department of Radiology, Salzburg (Austria); Cantonal Hospital, Department of Radiology, Winterthur (Switzerland); Roos, Justus E. [Duke University, Department of Radiology, Durham, NC (United States); Hergan, Klaus [Paracelsus Medical University Salzburg, Department of Radiology, Salzburg (Austria); Weymarn, Constantin von; Reischauer, Carolin; Froehlich, Johannes M. [Clinical Research Unit of St. Anna Hospital Luzern, Institute of Radiology and Nuclear Medicine, Luzern (Switzerland); Cantonal Hospital, Department of Radiology, Winterthur (Switzerland); Waelti, Stephan [Cantonal Hospital, Department of Radiology, Winterthur (Switzerland)

    2014-12-15

    Optimal contrast within the pulmonary artery is achieved by the maximum amount of contrast-enhanced blood flowing through the superior vena cava (SVC), while minimum amounts of non-contrasted blood should originate from the inferior vena cava (IVC). This study aims to clarify whether ''suction against resistance'' might optimise this ratio. Phase-contrast pulse sequences on a 1.5T MRI magnet were used for flow quantification mean flow (mL/s), stroke volume (Vol) in the SVC and IVC in volunteers. Different breathing manoeuvers were analysed repeatedly: free breathing; inspiration; expiration; suction against resistance, and Valsalva. To standardise breathing commands, volunteers performed suction and Valsalva manoeuvers with an MR-compatible manometer.??Suction against resistance was associated with a significant drop of the IVC/SVC flow quotient (1.63 [range 1.3-2.0] p < 0.05 at -10 mmHg and 1.48 [1.1-1.9] p < 0.01 at -20 mmHg) corresponding to increased blood flow from SVC and diminished flow originating from the IVC. The remaining breathing commands (free breathing 2.2; inspiration 2.4; expiration 2.4; Valsalva 10 mmHg 2.3; Valsalva 20 mmHg 2.6; and Valsalva 30 mmHg 2.2) showed no differences (p > 0.05).??Suction against resistance caused a significant drop in the IVC/SVC quotient. Theoretically, this breathing manoeuver might significantly improve the enhancement characteristics of CT angiography. (orig.)

  20. A novel method of placing right ventricular leads in patients with persistent left superior vena cava using a conventional j stylet.

    Science.gov (United States)

    Mora, Guillermo

    2014-03-01

    Locating pacemaker electrodes can become complicated by congenital abnormalities such as persistent left superior vena cava (LSVC). To evaluate a technique for the implanting of ventricular electrode in patients with persistent LSVC. The study was carried out from June 2001 to June 2010 involving all patients who were admitted to the Hospital Universitario Mayor, Instituto de Corazon de Bogota and Hospital Universitario Clinica San Rafael (Bogota-Colombia) for implanting pacemakers or cardiac defibrillators. LSVC was diagnosed by fluoroscopic observation (anterior-posterior view) of the course of the stylet. Four steps were followed: 1) Move the electrode with a straight stylet to the right atrium. 2) Change the straight stylet by a conventional J stylet and push the electrode to the lateral or anterolateral wall of the right atrium. 3) Remove the guide 3-5 cm and 4) Push the electrode which crosses the tricuspid valve into the right ventricle and finally deploy the active fixation mechanism. A total of 1198 patients were admitted for pacemaker or cardiac defibrillator implant during the 9-year study period, 1114 received a left subclavian venous approach. There were 573 males and 541 females. Persistent LSVC was found in five patients (0.45%) Fluoroscopy time for implanting the ventricular electrode ranged from 60 to 250 seconds, 40 to 92 minutes being taken to complete the whole procedure. We present a simple and rapid technique for electrode placement in patients with LSVC using usual J guide and active fixation electrodes with high success.

  1. Defibrillation lead placement using a transthoracic transatrial approach in a case without transvenous access due to lack of the right superior vena cava.

    Science.gov (United States)

    Otsuka, Yosuke; Okamura, Hideo; Sato, Syunsuke; Nakajima, Ikutaro; Ishibashi, Kohei; Miyamoto, Kouji; Noda, Takashi; Aiba, Takeshi; Kamakura, Shiro; Kobayashi, Junjiro; Yasuda, Satoshi; Ogawa, Hisao; Kusano, Kengo

    2015-06-01

    A 65-year-old woman with a history of syncope was diagnosed with hypertrophic cardiomyopathy. She had previously undergone mastectomy of the left breast owing to breast cancer. Holter electrocardiogram (ECG) and monitor ECG revealed sick sinus syndrome (Type II) and non-sustained ventricular tachycardia. Sustained ventricular tachycardia and ventricular fibrillation were induced in an electrophysiological study. Although the patient was eligible for treatment with a dual chamber implantable cardioverter defibrillator (ICD), venography revealed lack of the right superior vena cava (R-SVC). Lead placement from the left subclavian vein would have increased the risk of lymphedema owing to the patient׳s mastectomy history. Consequently, the defibrillation lead was placed in the right ventricle by direct puncture of the right auricle through the tricuspid valve. The atrial lead was sutured to the atrial wall, and the postoperative course was unremarkable. Defibrillation lead placement using a transthoracic transatrial approach can be an alternative method in cases where a transvenous approach for lead placement is not feasible.

  2. Superior vena cava syndrome due to intravascular thrombosis in a patient with rheumatoid arthritis without antiphospholipid antibody syndrome: Is rheumatoid arthritis a separate hypercoagulable state

    Directory of Open Access Journals (Sweden)

    Pramila Dharmshaktu

    2014-03-01

    Full Text Available We report a 60 year male with long history of joint pain later diagnosed as rheumatoid arthritis (RA who presented with dyspnoea and swelling over neck& upper chest. A clinical diagnosis of superior vena cava (SVC syndrome was made. Patient fulfilled criteria for definite rheumatoid arthritis supported with positive serology. Contrast enhanced computerized tomography (CECT scan of chest revealed thrombosis in SVC. Patient was investigated for the cause of SVC thrombosis. Anti nuclear antibody (ANA test was negative. Anti cardiolipin antibody was done to rule out antiphospholipid antibody (APLA syndrome which has a known association with rheumatoid arthritis to cause intravascular thrombosis but was negative. Digital rectal examination (DRE and prostate specific antigen (PSA levels were normal. Further investigations as a part of thrombophilia work up were normal. There are case reports where RA is associated with SVC syndrome but only when it is associated mediastinal lymphadenopathy or SVC thrombosis due to APLA Syndrome. This case suggests RA per se as hypercoagulable state.

  3. Trombosis de vena cava superior asociada a catéter en paciente crítico: reporte de un caso y breve revisión de la literatura Superior vena cava thrombosis associated with catheter in critical patients: a case report and brief literature review

    Directory of Open Access Journals (Sweden)

    Ricardo Bohórquez

    2012-12-01

    Full Text Available Los fenómenos de hipercoagulabilidad son comunes en los pacientes politraumatizados críticamente enfermos. Los principales factores de riesgo para esta complicación son la cirugía, las invasiones vasculares, la inmovilidad y los procesos inflamatorios. Los catéteres intravasculares proveen un acceso necesario para la administración de terapia intravenosa, toma de muestras sanguíneas y monitorización. Sin embargo, su uso se asocia frecuentemente con complicaciones locales y sistémicas serias incluyendo infecciones diseminadas, tromboflebitis séptica y endocarditis. En este contexto, debe sospecharse de tromboflebitis séptica de la vena cava superior en el paciente con bacteriemia persistente después de 72 horas de terapia antimicrobiana apropiada. La base del tratamiento incluye: remoción del foco infeccioso, administración temprana de antibióticos intravenosos y anticoagulación. Así mismo, debe considerarse el tratamiento quirúrgico en aquellos con evolución inadecuada.Hypercoagulability phenomena are common in critically ill polytraumatized patients. The main risk factors for this complication are surgery, vascular invasions, immobility and inflammatory processes. Intravascular catheters provide a necessary access for the administration of intravenous therapy, blood sampling and monitoring. However, their use is frequently associated with serious local and systemic complications including disseminated infections, septic thrombophlebitis and endocarditis. In this context, septic thrombophlebitis of the superior vena cava should be suspected in patients with persistent bacteremia after 72 hours of appropriate antimicrobial therapy. The mainstay of treatment includes the removal of the source of infection, early administration of intravenous antibiotics and anticoagulation. Also, surgical treatment should be considered in those with inadequate clinical evolution.

  4. Hacia una educación superior inclusiva en Colombia

    Directory of Open Access Journals (Sweden)

    Sandra Lucia Arizabaleta Dominguez

    2016-12-01

    Full Text Available En este artículo se analizan concepciones teórico-conceptuales básicas que subyacen a la educación superior inclusiva, en el marco de los Lineamientos de la Política de Educación Superior Inclusiva del Ministerio de Educación Nacional de Colombia (men. Además, se plantean los desafíos que deben asumir las instituciones de educación superior (ies en la identificación de barreras de aprendizaje de su población estudiantil y la promoción de estrategias que garanticen la accesibilidad, permanencia, pertinencia académica y la graduación. Esta situación lleva a las ies a reflexionar y repensarse a partir de los procesos de autoevaluación institucional para crear estrategias participativas que promuevan la gestión inclusiva en un sistema educativo equitativo, pertinente y de calidad

  5. Real-time phase-contrast flow MRI of the ascending aorta and superior vena cava as a function of intrathoracic pressure (Valsalva manoeuvre)

    Science.gov (United States)

    Kowallick, J T; Joseph, A A; Unterberg-Buchwald, C; Fasshauer, M; van Wijk, K; Merboldt, K D; Voit, D; Frahm, J; Lotz, J

    2014-01-01

    Objective: Real-time phase-contrast flow MRI at high spatiotemporal resolution was applied to simultaneously evaluate haemodynamic functions in the ascending aorta (AA) and superior vena cava (SVC) during elevated intrathoracic pressure (Valsalva manoeuvre). Methods: Real-time phase-contrast flow MRI at 3 T was based on highly undersampled radial gradient-echo acquisitions and phase-sensitive image reconstructions by regularized non-linear inversion. Dynamic alterations of flow parameters were obtained for 19 subjects at 40-ms temporal resolution, 1.33-mm in-plane resolution and 6-mm section thickness. Real-time measurements were performed during normal breathing (10 s), increased intrathoracic pressure (10 s) and recovery (20 s). Results: Real-time measurements were technically successful in all volunteers. During the Valsalva manoeuvre (late strain) and relative to values during normal breathing, the mean peak flow velocity and flow volume decreased significantly in both vessels (p < 0.001) followed by a return to normal parameters within the first 10 s of recovery in the AA. By contrast, flow in the SVC presented with a brief (1–2 heartbeats) but strong overshoot of both the peak velocity and blood volume immediately after pressure release followed by rapid normalization. Conclusion: Real-time phase-contrast flow MRI may assess cardiac haemodynamics non-invasively, in multiple vessels, across the entire luminal area and at high temporal and spatial resolution. Advances in knowledge: Future clinical applications of this technique promise new insights into haemodynamic alterations associated with pre-clinical congestive heart failure or diastolic dysfunction, especially in cases where echocardiography is technically compromised. PMID:25074791

  6. Electrophysiological and Histological Evaluation of Acute Efficacy and Safety of Balloon Occlusive Ablation at Superior Vena Cava-Right Atrial Junction

    Directory of Open Access Journals (Sweden)

    Kazushi Tanaka, MD

    2007-01-01

    Full Text Available We evaluated efficacy and safety of occlusive radiofrequency catheter ablation (o-RFA using our thermal balloon catheter (TBC at superior vena cava (SVC-right atrial (RA junction (SVCJ compared to that of RFA with a standard-tip catheter. Methods: To electrically isolate (SVCI SVC from RA in 10 pigs (group 1, the initial o-RFA at a balloon surface temperature of 53.9 ± 3.0°C for 3–5 min (13.56 MHz was achieved at the SVCJ completely obstructed with an inflated balloon. If unsuccessful, subsequent o-RFA was repeated in a ࣘ5°C increments until reaching either SVCI or sinus arrest. Before and after each o-RFA, stimulation protocol from the RA was performed. Additionally, in 5 different pigs (group 2, RFA at 55°C (ࣘ50 W for 1 min with a 4 mm-tip catheter was achieved at multiple sites along the SVCJ. Finally, the neighboring tissues of the SVCJ were histologically investigated. Results: In group 1, successful SVCI could be easily accomplished at the final temperature of 57.2 ± 2.4°C; however, in 3 pigs, a new atrial tachycardia was induced after o-RFA at <55°C and in 2 pigs sinus arrest occurred during o-RFA at 60°C. Histologically, transmural and circumferential contraction band necrosis was mainly confirmed around the SVCJ without damage to collateral tissue. In group 2, coagulation necrosis occupied almost all the ablative lesions, leading to severe degeneration of collateral tissue. Conclusion: O-RFA at the SVCJ may be more feasible and safer than RFA.

  7. Construcción de una escala de clima escolar en una institución de nivel superior

    OpenAIRE

    Juárez-Herrera, Maricela

    2014-01-01

    Esta investigación realiza una exploración del clima escolar en una institución de educación superior, con fines de describir y caracterizar la situación que guarda el clima escolar en la institución educativa. El procedimiento metodológico utilizado para esta investigación es de tipo mixto secuencial exploratorio de cuatro etapas. En la primera etapa se realizó una aproximación al constructo de clima mediante el uso de técnicas cualitativas con los principales actores de la institución. En...

  8. Marketing en medios sociales para una institución de educación superior .

    OpenAIRE

    Morla Chiong Konfook, Cristina Kim

    2014-01-01

    Se presentan los principales conceptos del marketing digital aplicados a instituciones de educación superior, enfatizando el uso de los medios sociales en una propuesta para la Pontificia Universidad Católica del Perú (PUCP). En la primera parte vemos como el aumento del número de usuarios en línea, define una clara tendencia hacia el incr...

  9. Remote-controlled magnetic pulmonary vein isolation combined with superior vena cava isolation for paroxysmal atrial fibrillation: a prospective randomized study.

    Science.gov (United States)

    Da Costa, Antoine; Levallois, Marie; Romeyer-Bouchard, Cécile; Bisch, Laurence; Gate-Martinet, Alexis; Isaaz, Karl

    2015-03-01

    Radiofrequency ablation (RFA) of paroxysmal atrial fibrillation (PAF) has focused on pulmonary vein isolation (PVI). However, despite initial positive results, significant recurrences have occurred, partly because of pulmonary vein (PV) reconnection or non-PV ectopic foci, including the superior vena cava (SVC). This prospective, randomized study sought to investigate the efficacy of additional SVCI combined with PVI in symptomatic PAF patients referred for ablation. From November 2011 to May 2013, RFA was performed remotely using a CARTO(®) 3 System in patients randomized to undergo PVI for symptomatic drug-refractory PAF, with (PVI+SVCI group) or without (PVI alone group) SVCI. PVI and SVCI were confirmed by spiral catheter recording during ablation. Procedural data, complications and freedom from atrial tachycardia (AT) and atrial fibrillation (AF) were assessed. Over an 18-month period, 100 consecutive patients (56±9years; 17 women) with symptomatic PAF were included in the study (PVI+SVCI, n=51; PVI, n=49); the CHA2DS2-VASc score was 0.9±1. Median duration of procedure (±interquartile), 2.5±1hours; total X-ray exposure, 13.3±8minutes; transseptal puncture and catheter positioning, 8±5minutes; left atrium electroanatomical reconstruction, 3±2minutes; and catheter ablation, 3.7±3minutes. After a median follow-up of 15±8months, and having undergone a single procedure, 84% of patients were symptom free, while 86% remained asymptomatic after undergoing two procedures. The cumulative risks of atrial arrhythmias (AT or AF) were interpreted using Kaplan-Meier curves and compared using the log-rank test. Long-term follow-up revealed no significant difference between groups, with atrial arrhythmias occurring in six (12%) patients in the PVI+SVCI group and nine (18%) patients in the PVI alone group (P=0.6). One transient phrenic nerve palsy and one phrenic nerve injury with partial recovery occurred in the PVI+SVCI group. SVCI combined with PVI did not reduce

  10. Malignant thrombosis of the superior vena cava caused by non-small-cell lung cancer treated with radiation and erlotinib: a case with complete and prolonged response over 3 years

    Directory of Open Access Journals (Sweden)

    Wang JY

    2013-07-01

    Full Text Available Jianyang Wang,1 Jun Liang,1 Wenqing Wang,1 Han Ouyang,2 Luhua Wang11Department of Radiation Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 2Department of Diagnostic Radiology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of ChinaAbstract: Most cases of superior vena cava (SVC syndrome resulting from neoplasm, especially from lung cancer, remain a serious challenge to treat. Here, for the first time as far as we are aware, we report the case of a non-small-cell lung cancer patient with a massive SVC malignant thrombosis who was treated with thoracic irradiation and erlotinib. The treatment regimen consisted of erlotinib 150 mg/day and a total dose of 66 Gy/33 fractions delivered to the tumor, malignant thrombosis, and metastasis mediastinal lymph nodes. The malignant thrombosis responded dramatically and the combined regimen was well tolerated. After discharge, the erlotinib was prescribed as maintenance therapy. The patient was followed closely for the next 3 years. During this time, positron emission tomography/computed tomography scans and serum tumor marker screens were undertaken. By 6 months, the primary tumor showed complete response and by 9 months, the SVC thrombosis had disappeared. No sign of relapse has been found to date.Keywords: superior vena cava syndrome, radiotherapy, thoracic irradiation, neoplasm

  11. Successful management of multiple permanent pacemaker complications – infection, 13 year old silent lead perforation and exteriorisation following failed percutaneous extraction, superior vena cava obstruction, tricuspid valve endocarditis, pulmonary embolism and prosthetic tricuspid valve thrombosis

    Science.gov (United States)

    Kaul, Pankaj; Adluri, Krishna; Javangula, Kalyana; Baig, Wasir

    2009-01-01

    A 59 year old man underwent mechanical tricuspid valve replacement and removal of pacemaker generator along with 4 pacemaker leads for pacemaker endocarditis and superior vena cava obstruction after an earlier percutaneous extraction had to be abandoned, 13 years ago, due to cardiac arrest, accompanied by silent, unsuspected right atrial perforation and exteriorisation of lead. Postoperative course was complicated by tricuspid valve thrombosis and secondary pulmonary embolism requiring TPA thrombolysis which was instantly successful. A review of literature of pacemaker endocarditis and tricuspid thrombosis along with the relevant management strategies is presented. We believe this case report is unusual on account of non operative management of right atrial lead perforation following an unsuccessful attempt at percutaneous removal of right sided infected pacemaker leads and the incidental discovery of the perforated lead 13 years later at sternotomy, presentation of pacemaker endocarditis with a massive load of vegetations along the entire pacemaker lead tract in superior vena cava, right atrial endocardium, tricuspid valve and right ventricular endocardium, leading to a functional and structural SVC obstruction, requirement of an unusually large dose of warfarin postoperatively occasioned, in all probability, by antibiotic drug interactions, presentation of tricuspid prosthetic valve thrombosis uniquely as vasovagal syncope and isolated hypoxia and near instantaneous resolution of tricuspid prosthetic valve thrombosis with Alteplase thrombolysis. PMID:19239701

  12. Educación en Derechos Humanos y Educación Superior: una perspectiva controversial

    Directory of Open Access Journals (Sweden)

    Abraham Magendzo Kolstrein

    2015-01-01

    Full Text Available Este artículo, a partir de una postura crítica, muestra la importancia de introducir y reforzar —como desafío ético y político— la educación en derechos humanos en la educación superior. Para formar profesionales que contribuyan, desde sus campos de acción, a crear una cultura ciudadana y respetuosa de los derechos humanos. La sugerencia es incorporar los derechos humanos en el currículum, la pedagogía, la didáctica y la evaluación en una perspectiva controversial, que permita profundizar en las tensiones que tienen los derechos para de esta manera, formar sujetos dialogantes, empoderados y transformadores de la sociedad.

  13. Estudio de liderazgo en una carrera de educación superior, en una universidad regional

    Directory of Open Access Journals (Sweden)

    Alberto Martínez Quezada

    2016-06-01

    Full Text Available El objetivo del presente trabajo es determinar estilo de liderazgo presente en la dirección de carrera de Ingeniería Civil Industrial, de la Universidad Arturo Prat de Iquique. Para el levantamiento de información, se aplicó el Cuestionario Multifactorial de Liderazgo MLQ 5X, adaptado a la realidad organizacional chilena, a los académicos y al director de carrera. El estudio permitió determinar que, de los estilos de liderazgos evaluados (Liderazgo transformacional, Liderazgo transaccional y Laissez faire, el líder estudiado presenta características del Liderazgo transformacional y transaccional, con una diferencia cercana al 9%, siendo mayor el primero, logrando aplicar ambos estilos de liderazgo de acuerdo al contexto, en conjunto con otras variables como la efectividad y la satisfacción evaluada por los clasificadores.  Este resultado es respaldado por el estudio y análisis, del “Modelo de las nueve dimensiones de rango total”.

  14. DIVERSIDAD CULTURAL Y CIUDADANÍA. HACIA UNA EDUCACIÓN SUPERIOR INCLUSIVA

    Directory of Open Access Journals (Sweden)

    Gloria Pérez Serrano

    2013-01-01

    Full Text Available Este artículo tiene por finalidad analizar la incidencia de la inmigración en la sociedad, en cuanto elemento de diversidad cultural, con amplias repercusiones en la ciudadanía democrática. Igualmente, estudia el papel que desempeña la educación superior como promotora de inclusión social. Es fruto de investigaciones subvencionadas, en las que se utiliza una metodología descriptiva, correlacional y prescriptiva, combinando los enfoques cualitativos y cuantitativos. Se selecciona una muestra representativa de los universitarios tanto inmigrantes como autóctonos. Los instrumentos empleados son cuestionarios y escalas que reunen los requisitos de fiabilidad y validez. También se emplean entrevistas semiestructuradas y grupos de discusión. Se han utilizado los programas SPSS y el ATLAS-TI. Como principales resultados se destaca la identificación de los rasgos que definen el perfil del inmigrante universitario y los elementos que favorecen y dificultan su inclusión social y educativa. Igualmente, se constata que los jóvenes tienen bien arraigadas las actitudes y valores democráticos. Defienden la igualdad de derechos, al tiempo que rechazan las actitudes xenófobas y los movimientos radicales Valoran el sistema de gobierno democrático si bien critican el funcionamiento de las instituciones. Prefieren al ciudadano que cumple sus obligaciones cívicas pero sin implicarse. Todas estas dimensiones avalan que nos encontramos ante una juventud que está pasando de una visión armónica a una más esceptica. La Universidad, como centro de expresión y de desarrollo del conocimiento aparece como una institución bien valorada por los estudiantes al considerar que facilita la promoción cultural y sociolaboral, a la vez que impulsa una educación de carácter inclusivo. Se han elaborado propuestas de acción orientadas a favorecer una educación que respete y promueva la diversidad cultural y favorezca la inclusión.

  15. La educación superior en México, una demanda con compromiso social

    Directory of Open Access Journals (Sweden)

    Nancy Jaimes Rodríguez

    2014-08-01

    Full Text Available Encontrar respuesta a los diferentes planteamientos con respecto a la importancia y calidad de la educación superior, y comprobar la hipótesis de que solo y a través de la educación se puede construir el futuro cognitivo que la sociedad demanda —en el sustento de que lograr un alto nivel de enseñanza se traduce en pertinencia y equidad para dicho nivel—, nos llevó a analizar la pertinencia de la educación superior, la forma como se relaciona con la economía y su función social. En general, se encontró una realidad virtual inacabada; basta observar la equidad y la oportunidad para encontrar serias inequidades en términos de oportunidades para todos, nos referimos a los que no tienen acceso a disfrutar de la función social de la educación en general y a la educación superior en particular, lo que por excelencia debería ser el más elevado de los valores y la más significativa e inteligente inversión con futuro sustentable.

  16. CLIMA ORGANIZACIONAL EN PROFESORES INVESTIGADORES DE UNA INSTITUCIÓN DE EDUCACIÓN SUPERIOR

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    María del Carmen Sandoval Caraveo

    2013-01-01

    Full Text Available El objetivo de esta investigación fue determinar la percepción del clima organizacional en el personal docente investigador perteneciente a los cuerpos académicos, es decir, grupos de investigadores que cultivan una o más líneas de generación y aplicación del conocimiento. El estudio se realizó en la Universidad Juárez Autónoma de Tabasco, México. Obedece a que el profesorado se encuentra supeditado a una serie de evaluaciones de sus actividades académicas que repercuten en un clima organizacional en deterioro. La investigación es cuantitativa descriptiva y correlacional, el diseño es no experimental transeccional. Se aplicó un cuestionario de manera directa a una muestra estratificada de la población para medir el constructo en el contexto de la educación superior. Los resultados reportan que el 24% de la población percibe un clima organizacional altamente favorable y el 27% no favorable. Se concluye de manera general que las dimensiones que reportan los valores más bajos son la de interés por la investigación y el estudio y la presión laboral. Sin embargo, la percepción del clima organizacional no es igual en todas las Divisiones Académicas de la Universidad.

  17. Cardiac Resynchronization Therapy in a Patient with Persistent Left Superior Vena Cava Draining into the Coronary Sinus and Absent Innominate Vein: A Case Report and Review of Literature

    Directory of Open Access Journals (Sweden)

    Girish M. Nair, MBBS, MSc, FRCPC

    2014-09-01

    Conclusions: Superior venous anomalies such as PLSVC can make CIED implantation technically challenging. However, with increasing operator experience, cardiac imaging and appropriate tools successful CIED implantation is possible in almost all cases.

  18. Satisfacci??n laboral, satisfacci??n vital y autoestima en una muestra comparada de sujetos con estudios superiores y no superiores

    OpenAIRE

    2014-01-01

    En la siguiente investigaci??n nos centramos en investigar c??mo la satisfacci??n laboral, satisfacci??n vital y autoestima se ven afectadas por el nivel de estudios de una muestra de trabajadores espa??oles. Siguiendo numerosos estudios como los de Pichler y Wallace (2009), creemos que el nivel educativo superior correlacionar?? con las tres variables evaluadas. Nuestros datos confirman la hip??tesis de que un nivel de estudios superior llevar??a a las personas a un nivel de bienestar m??s e...

  19. PERTINENCLA SOCIAL, UNA CONDICION PARA LA CALIDAD DE LA EDLICACION SUPERIOR

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    Ana Pombo Gallardo

    2002-08-01

    Full Text Available El acelerado cambio técnico y organizativo en los procesos de producción, como el mayor potencial de consumo, el desarrollo científico que ha hecho posible alargar la vida de las personas y posicionarnos en el mundo de las ciencias, la tecnificación progresiva de la sociedad, la exclusión que ésta misma genera, el desarraigo provocado por las migraciones, o el desplazamiento forzado, la dispersión de las familias, el recrudecimiento de la violencia y la delincuencia, hacen que la Educación Superior deba orientarse hacia nuevos campos que permitan determinar currículos que preparen adecuadamente para el ejercicio de las profesiones y nuevas acciones sociales. la cooperación, las alianzas estratégicas y la conjunción de esfuerzos y recursos de organismos públicos, privados, ONGs, e instituciones de Educación Superior se ofrecen como la opción para la construcción colectiva de propuestas de transformación social, en función de un enriquecimiento continuo de los conocimientos y del ejercicio de una ciudadanía adaptada a las exigencias de nuestra época.

  20. Persistent left superior vena cava: review of the literature, clinical implications, and relevance of alterations in thoracic central venous anatomy as pertaining to the general principles of central venous access device placement and venography in cancer patients.

    Science.gov (United States)

    Povoski, Stephen P; Khabiri, Hooman

    2011-12-28

    Persistent left superior vena cava (PLSVC) represents the most common congenital venous anomaly of the thoracic systemic venous return, occurring in 0.3% to 0.5% of individuals in the general population, and in up to 12% of individuals with other documented congential heart abnormalities. In this regard, there is very little in the literature that specifically addresses the potential importance of the incidental finding of PLSVC to surgeons, interventional radiologists, and other physicians actively involved in central venous access device placement in cancer patients. In the current review, we have attempted to comprehensively evaluate the available literature regarding PLSVC. Additionally, we have discussed the clinical implications and relevance of such congenital aberrancies, as well as of treatment-induced or disease-induced alterations in the anatomy of the thoracic central venous system, as they pertain to the general principles of successful placement of central venous access devices in cancer patients. Specifically regarding PLSVC, it is critical to recognize its presence during attempted central venous access device placement and to fully characterize the pattern of cardiac venous return (i.e., to the right atrium or to the left atrium) in any patient suspected of PLSVC prior to initiation of use of their central venous access device.

  1. Una mirada sobre la educación superior mexicana: instituciones, saberes y mercado

    Directory of Open Access Journals (Sweden)

    Philippe Dautrey

    2013-02-01

    Full Text Available Después de un largo proceso en el que reivindicó su protagonismo en materia de educación, el Estado mexicano llegó a afianzar su papel educador en el nivel superior, en realidad consolidado a raíz de la revolución de 1910. No obstante, ante el crecimiento de la demanda educativa a partir de los años setenta y de la crisis económica de la década de los ochenta, recurrió al mercado quedándose con la rectoría del sistema de educación. La consiguiente extensión del sector privado de nivel superior, que creció más rápido que las universidades públicas, llevó sin embargo a una mayor estratificación de los establecimientos y el acceso a ellos se tornó desigual. Así, las élites se desplazaron del sector público hacia las instituciones privadas de prestigio. El auge de la educación superior particular condujo también a la mercantilización y a la desvalorización de los saberes mientras perduró la tradicional orientación a la enseñanza profesional (como consecuencia, la creciente investigación se quedó casi exclusivamente en el ámbito público. En conclusión, la irrupción de la competencia en el nivel superior no mejoró la calidad de la educación sino que contribuyó a la constitución de un sector educativo precario mediocre que ni siquiera garantiza una segura inserción laboral. English: Following a long struggle to establish its authority over education, the Mexican government finally managed to take control of higher education in the aftermath of the 1910 revolution. However, faced with a growing demand for education since the 1970s and an economic crisis in the 1980s, it had no alternative but to turn to the market, retaining only its normative function in the process. The rapid expansion of private institutions, fast outnumbering public universities, has led to a much more pronounced stratification of higher education schools and made access unequal. One consequence is that the elite have shifted from public to

  2. Peculiarities of Blood Flow Changes in Venae Cavae during Experimental Pulmonary Embolism.

    Science.gov (United States)

    Evlakhov, V I; Poyassov, I Z; Shaidakov, E V

    2016-10-01

    The model of acute pulmonary embolism in rabbits demonstrated reduced pulmonary blood flow, cardiac output, left atrial pressure, and blood flow in venae cavae against the background of elevated left pulmonary artery pressure and increased pulmonary vascular resistance. Simultaneously, the blood flow in the superior vena cava decreased to a lesser extent than that in the inferior vena cava, which was a characteristic feature of the model of pulmonary pathology. In contrast, when histamine was infused into the left jugular vein to equally elevate pressure in pulmonary artery as in the above model, the blood flow in the superior vena cava decreased to a greater extent than that in inferior vena cava. During stenosis of inferior vena cava that decreased the cardiac output to the level observed during modeled pulmonary embolism, the blood flows in both venae cavae dropped equally.

  3. Congenital anomalies of the venae cavae: embryological origin, imaging features and report of three new variants

    Energy Technology Data Exchange (ETDEWEB)

    Minniti, S.; Visentini, S.; Procacci, C. [Department of Radiology, University of Verona, Policlinico ' ' GB Rossi' ' , Piazzale LA Scuro, 37134 Verona (Italy)

    2002-08-01

    Due to the complexity of their developmental stages, the venae cavae may undergo a very large number of congenital anomalies. All the possible abnormalities which, to our knowledge, have been observed in the literature are reported, differentiating those of the superior vena cava and the azygos system, those of the inferior vena cava and the complex anomalies that concern the venous system as a whole. Moreover, we present three new variants: a right double inferior vena cava with azygos continuation of the posterior-medial vein; an agenesis of the superior vena cava with drainage through the azygos and hemiazygos veins to the inferior vena cava; and a double inferior vena cava with hemiazygos and azygos continuation of the left one. (orig.)

  4. Enfermedad hidatídica diseminada con localización mediastinal como causa de síndrome de vena cava superior

    Directory of Open Access Journals (Sweden)

    José Luis Pinto Valdivia

    2001-10-01

    Full Text Available Hydatidic illness is a frequent parasitic zoonosis in our country whose more frequent localization is the liver and the lungs. However other many sites have been described, depending their symptoms on the cyst’s size, localization and effect on next structures, being sometimes its evolution fatal. This is a 52 year-old female patient admitted at emergency room for dysfunction of sensory and neurological focalization. She had a previous history of surgery many years ago by abdominal tumor. We found a collateral circulation on right hemithorax and facial and arms edema at exam. The cerebral CT howed extensive left parietal parenchymal hemorrhage. Thoracoabdominal CT revealed multiple cystic masses of diverse sizes in the mediastinum, lungs, liver and other places. The patient’s evolution was torpid, the neurological compromise didn’t improve in spite of the treatment against the intracranial hypertension (EH, being also added a nosocomial pneumonia. The patient died after several days. Necropsy revealed presence of cystic lesions in mediastinum, heart’s great vessels, pericardium, lungs, liver, spleen and mentum, as well as intra and extraparenchymal hemorrhages of hypertensive cause in brain, not being cystic lesions in central nervous system. We concluded that it was disseminated hydatidic illness, cysts in the mediastinum caused compression of the heart’s great vessels, causing a superior cave vein syndrome. ( Rev Med Hered 2001; 12: 142-149

  5. 支架植入术治疗上腔静脉综合征:金属支架的选择%Stent implantation for the treatment of superior vena cava syndrome:Selection of metallic stents

    Institute of Scientific and Technical Information of China (English)

    杨维竹; 潘恒; 黄兢姚; 江娜; 郑曲彬; 林俊清

    2013-01-01

    目的 探讨支架植入术治疗上腔静脉综合征(SVCS)中选择金属支架的要点.方法 收集51例SVCS,CT均显示上腔静脉(SVC)明显狭窄或闭塞;经股静脉穿刺插管,以球囊扩张狭窄或闭塞段后植入1枚或多枚金属内支架(Smart支架、Z-Stent支架、Fluency支架),直至复查造影显示SVC血流通畅.术后评价疗效.结果 51例SVCS中,50例双侧头臂静脉汇合处受累.支架植入术均获成功,28例植入Smart支架,17例植入Z-Stent,4例植入Fluency支架,2例为Smart支架内套Fluency支架;31例植入1枚支架,12例植入2枚支架,8例植入3枚支架.支架植入后48例临床症状明显改善,上腔静脉压显著下降.术中无SVC破裂等严重并发症发生.46例接受随访,其中18例于随访期内重现SVC阻塞症状,包括11例植入Smart支架、7例植入Z-Stent支架者,植入Fluency支架者未见复发.结论 根据SVC病变程度、位置,选择植入结构和特性适当的金属支架可使介入治疗SVCS安全、有效.%Objective To investigate the elective points of different types of metallic stents for implantation in patients with superior vena cava syndrome (SVCS).Methods Fifty-one patients with SVCS were enrolled.Enhanced CT showed obvious stenosis or occlusion of the superior vena cava (SVC) in all patients.Stent implantation was performed after balloon dilatation through femoral vein.One or more stents (Smart stent,Z-Stent and Fluency stent) were positioned till the obstruction of SVC flow was relieved.The therapeutic effects of stent implantation were evaluated.Results Among all 51 patients,invasion of bilateral brachiocephalic veins were observed in 50 patients.Technical success of stent implantation was achieved in all patients including 28 patients with Smart stent,17 with Z-Stent,4 with Fluency stent and 2 patients with Fluency+Smart stent.Significant improvements of SVCS symptoms was noticed in 48 patients after stent implantation,and the pressure of SVC

  6. 上腔静脉阻塞综合征的血管内支架治疗%Superior Vana Cava Syndrome: A Therapy by Intra-vascular Stenting

    Institute of Scientific and Technical Information of China (English)

    官泳松; 汪小舟; 黄明亮; 张华山

    2003-01-01

    Objective To study the techniques and clinical applications of intra-vascular stenting in the treatment of superior vana cava oblit-eration syndrome (SVS).Methods In 9 cases of SVS, primary lesions were all confirmed as malignancy ( primary pulmonary carcinoma of right upperlobe) histolo-pathologically. By route of right femoral vein, SVS catheterization and DSA was made. The length of the stricturesand the diameters of normal superior vana cavae (SVC) were measured for the choice of appropriate stents. The option of stent di-ameter is 10% larger than that of normal SVCs. The upper and lower ends of the stent should be 1 - 2 cm protruding from the endsof the stricture. The stent was dilated with a balloon after its successful placement. Therapy of original lesions was continued to-gether with anticoagulant. Stents were observed about their positions by fluoroscopy or chest films, and about patency of SVC byDoppler.Results After the placement of a stent, DSA revealed the contrast media in the SVCs passed along smoothly, diameters of SVCsalmost normal, collateral branches diminished remarkably. Average SVC pressure was decreased from 26.4 cmH2O before theplacement down to 15.7 cmH2 O, with an obvious difference (P < 0.01 = by statistics. Related clinical symptoms and signs disap-peared or relieved. Subsidised were swelling of head and neck, upper extremities and chest. Excretion of urine increased. Gor-geous superficial veins in the chest could not be detected any more.Conclusion The therapy of intra-vascular stenting to treat SVS is microinvasive, simple and effective.%目的 探讨血管内支架治疗上腔静脉阻塞综合征的技术和临床应用效果.方法 9例上腔静脉阻塞综合征患者,原发病灶均由病理组织学诊断为恶性肿瘤(右上肺中央型肺癌).行右股静脉穿刺,在造影像上测量狭窄长度及正常上腔静脉直径,选择适当支架,原则上支架直径应超过正常上腔静脉直径10%,

  7. Diseño de una estación de trabajo para personas con discapacidad en miembros superiores usando una interfaz cerebro computador

    OpenAIRE

    Muñoz, John; Muñoz, Cristian; Henao, Oscar

    2013-01-01

    El presente trabajo presenta el diseño de una estación de trabajo para la inclusión laboral de personas en estado de discapacidad en miembros superiores. El sistema involucra el uso de una novedosa interfaz cerebro computador que sirve como puente entre el usuario y el ordenador. Nuestro objetivo es dilucidar los aspectos funcionales, tecnológicos, ergonómicos y procedimentales de la puesta en marcha de la estación de trabajo; con el fin de romper con las barreas que imposibilitan el acceso a...

  8. Vena cava filter; Vena-cava-Filter

    Energy Technology Data Exchange (ETDEWEB)

    Helmberger, T. [Klinikum Bogenhausen, Institut fuer Diagnostische und Interventionelle Radiologie und Nuklearmedizin, Muenchen (Germany)

    2007-05-15

    Fulminant pulmonary embolism is one of the major causes of death in the Western World. In most cases, deep leg and pelvic venous thrombosis are the cause. If an anticoagulant/thrombotic therapy is no longer possible or ineffective, a vena cava filter implant may be indicated if an embolism is threatening. Implantation of the filter is a simple and safe intervention. Nevertheless, it is necessary to take into consideration that the data base for determining the indications for this treatment are very limited. Currently, a reduction in the risk of thromboembolism with the use of filters of about 30%, of recurrences of almost 5% and fatal pulmonary embolism of 1% has been reported, with a risk of up to 20% of filter induced vena cava thrombosis. (orig.) [German] Die fulminante Lungenembolie zaehlt zu den Haupttodesursachen in der westlichen Welt. In der Mehrzahl der Faelle sind tiefe Bein- und Beckenvenenthrombosen ursaechlich verantwortlich. Ist eine antikoagulative/-thrombotische Therapie nicht (mehr) moeglich oder unwirksam, kann bei drohender Emboliegefahr die Vena-cava-Filterimplantation indiziert sein. Die Filterimplantation ist eine einfache und sehr sichere Intervention. Dennoch muss bei der Indikationsstellung beruecksichtigt werden, dass die Datenlage zur Wirksamkeit sehr limitiert ist. So wird aktuell ueber eine Reduktion des Thrombembolierisikos um 30% bei Embolierezidiven von knapp 5% und fatalen Lungenembolien von 1% unter Filterprophylaxe berichtet, bei einem Risiko von bis zu 20% fuer die filterinduzierte Vena-cava-Thrombose. (orig.)

  9. Predicción de la Inclusión de Caninos Superiores en una Población Infantil

    OpenAIRE

    Gascón Pellicer, Jordi

    2015-01-01

    La tesis doctoral se ha realizado debido a la gran prevalencia de inclusión de caninos superiores en la población general. En la segunda fase de recambio dentario, el diente que provoca más problemas eruptivos es el canino permanente superior. Si este diente altera su trayecto eruptivo, el resultado puede ser una erupción ectópica del mismo o su retención por palatino. En ambos casos, el paciente necesitará tratamiento ortodóncico que suele ser largo y complejo. Por ese motivo, sería importan...

  10. FINANCIAMIENTO DE LA EDUCACIÓN SUPERIOR: UNA INTRODUCCIÓN

    OpenAIRE

    Maximiliano González

    2000-01-01

    ¿Por qué es importante pensar y discutir sobre el financiamiento de la educación superior? En primer lugar, la demanda que existe de educación superior es mayor en los actuales momentos que en el pasado, lo cual hace que los requerimientos financierosdestinados a la educación superior tiendan a incrementarse considerablemente; en segundo lugar, los países están en menor capacidad de atender dichos requerimientos dados los abultados déficits fiscales. Dicho esto es necesario estudiar otras fue...

  11. Salud mental en la educación superior: una mirada desde la salud pública.

    Directory of Open Access Journals (Sweden)

    Olga Mariela Mogollón-Canal

    2016-06-01

    Full Text Available Objetivo: describir la salud mental de los estudiantes de una institución de educación superior de Norte de Santander, a través del modelo de creencias con miras a la construcción y aporte de una universidad saludable. Materiales y Métodos: la metodología es descriptiva, de tipo trasversal, en una muestra de 836 estudiantes quienes respondieron un cuestionario de 125 preguntas que evaluó seis dimensiones: severidad, susceptibilidad, beneficios, barreras, motivación y claves para la acción frente a la salud mental percibida. Resultados: los estudiantes en relación a su vulnerabilidad frente a la salud mental no se perciben susceptibles, razón por la cual se involucran en conductas de riesgo; sin embargo, cuentan con factores protectores enmarcados en la motivación y las claves para la acción que les facilitan la búsqueda de apoyo social y familiar desde el nivel de prevención; una barrera percibida tiene que ver con la ausencia de políticas en el contexto en que se desenvuelven Conclusiones: el modelo de creencias se constituye en una alternativa investigativa para explicar la salud mental y la intervención en la misma que permita visualizar entornos universitarios saludables. La salud mental se convierte en un factor protector del adecuado desarrollo y rendimiento académico.

  12. La Fiscalización Superior en México: una propuesta en el contexto de la gobernanza

    Directory of Open Access Journals (Sweden)

    Guajardo-Cantú, Gerardo

    2011-08-01

    Full Text Available En la presente ponencia se analizará la función de fiscalización superior en México desde la perspectiva de la autonomía que tienen dichas entidades para el ejercicio de dicha función y de las facultades sancionatorias que le otorgan las leyes en la materia. La ponencia identifica la necesidad de reformar las leyes de fiscalización en México con instrumentos que incrementen la efectividad del trabajo de las EFS y con esquemas que privilegien la participación ciudadana en dicha función. Asimismo, en este documento se expone la pertinencia de analizar esta función desde la perspectiva académica, como un medio de identificar y proponer mejoras para configurar en México una propuesta de un nuevo modelo de fiscalización superior en el contexto de la gobernanza.

  13. Nuevos entornos en la formación superior: una propuesta de educación patrimonial en el museo

    Directory of Open Access Journals (Sweden)

    Carmen Gómez Redondo

    2014-01-01

    Full Text Available Aunque el término patrimonio aparece como uno de los contenidos en los currículos de sistema educativo actual, su presencia y su enfoque metodológico no quedan patentes en la formación de los educadores. Así pues, se abre una brecha en torno a este ámbito y su enfoque educacional en la formación superior. A través de este artículo se pretende dar luz a una de las distintas propuestas en torno a la educación patrimonial que se comienzan a emprender en el ámbito universitario. A continuación se revisan y proponen las bases metodológicas del área, para posteriormente plantear la propuesta educativa, así como algunos de los resultados y conclusiones más reseñables.

  14. Prevalencia de síntomas osteomusculares en miembros superiores en trabajadores de una fábrica de calzado.

    OpenAIRE

    Baron Avila, Harrison Augusto; Pinzon Giraldo, Ivonne Carina; Rojas Diaz, Lesly Zuraida

    2013-01-01

    Los desórdenes musculo esqueléticos (DME) son entidades comunes y potencialmente discapacitantes, pero aun así prevenibles que comprenden un amplio número de entidades clínicas específicas (1); se pueden presentar durante la jornada laboral y en muchas ocasiones no son detectados en los exámenes ocupacionales. Se calculó la prevalencia de síntomas osteomusculares de miembro superior en una fábrica de calzado.

  15. EL TRABAJO COLABORATIVO EN LA EDUCACIÓN SUPERIOR: UNA COMPETENCIA PROFESIONAL PARA LOS FUTUROS DOCENTES

    Directory of Open Access Journals (Sweden)

    Javier Fombona Cadavieco

    2016-06-01

    Full Text Available RESUMEN: El trabajo colaborativo es un proceso con especial potencial innovador basado en las comunidades profesionales de aprendizaje, por lo tanto resulta importante conocer si las ideas del alumnado se corresponden con las características específicas de esta estrategia. En el presente artículo, se describió y analizó la valoración del trabajo colaborativo desarrollado por un grupo de maestros españoles. Los resultados muestran que los participantes tienen una concepción óptima del trabajo colaborativo, pero no se detecta que el alumnado lo perciba como una competencia profesional docente. Estas aportaciones tienen especial repercusión en el escenario internacional y más específicamente en la comunidad educativa latino americana, donde se exploran las oportunidades para la renovación de la práctica educativa en los niveles formativos iniciales.

  16. Una visión participativa del adulto mayor en la Educación Superior

    OpenAIRE

    Montejo Rivero, Jetzabel; Universidad de Camagüey; Jiménez García, Alejandra; Universidad Autónoma del Estado de Morelos

    2015-01-01

    En los albores del siglo XXI, el envejecimiento poblacional constituye una realidad social ineludible. Se trata de un fenómeno natural y social que incumbe a todos, corolario del desarrollo de la humanidad. Sin lugar a dudas, el aumento de la esperanza de vida y la reducción de la natalidad caracteriza las sociedades contemporáneas. Desde esta perspectiva, una nueva mirada participativa define la situación jurídica del adulto mayor: el Convenio de 13 de enero de 2000 sobre Protección Internac...

  17. LA INVESTIGACIÓN EN EL CONTEXTO DE LA EDUCACIÓN SUPERIOR: UNA EXPERIENCIA EN EL SUR DEL BRASIL

    Directory of Open Access Journals (Sweden)

    María Piedad Rangel Meneses

    2006-01-01

    Full Text Available Tras una descripción del contexto brasileño en el cual desarrollo mi quehacer investigador abordo en este trabajo las dinámicas de la vida académica en la educación superior y la organización de la investigación en el país, los mecanismos para obtener aprobación y financiación para investigación, así como los criterios para la calificación de programas de educación superior según la vinculación de docentes y alumnos en las actividades de investigación, según su productividad y la divulgación de la investigación, con el fin de profundizar en el papel de la educación superior en la producción de conocimiento, para favorecer los procesos de investigación, su articulación con el currículo y el conocimiento de experiencias que inspiren procesos investigativos.

  18. SISTEMA DE MEMORIA ORGANIZACIONAL PARA CENTROS I+D DE UNA INSTITUCIÓN DE EDUCACIÓN SUPERIOR

    Directory of Open Access Journals (Sweden)

    Ruth Reátegui

    2015-01-01

    Full Text Available El objetivo del artículo es proponer un modelo de Sistemas de Memoria Organizacional (SMO para un centro de Investigación y Desarrollo (I+D basado en cuatro componentes: social, cultural, tecnológico y de procesos para una IES de Ecuador. Las instituciones de educación superior (IES son organizaciones donde la investigación es una de sus actividades fundamentales que requiere una adecuada gestión del conocimiento. Para esta propuesta se utilizó un método de investigación inductiva basado en entrevistas a los docentes involucrados para conocer las actividades y procesos que conlleva el desarrollo de este tipo de proyectos. Los SMO permiten preservar el conocimiento para ser utilizarlo en las actividades actuales y futuras. Uno de los problemas encontrados es que no se está conservando ni mucho menos compartiendo el conocimiento que las personas poseen como resultado de experiencias, prácticas, actitudes, entre otros aspectos, relacionados con los proyectos. Además el modelo resultante se implementó en un sistema basado en software libre y tecnologías web. La implementación de este modelo muestra como resultado un alto nivel de aceptación por parte de directivos e inves tigadores de los centros de I+D

  19. Una mirada reflexiva acerca de las TIC en Educación Superior

    Directory of Open Access Journals (Sweden)

    Ana Miriam Herrera Jiménez

    2014-12-01

    Full Text Available El libro Háblame de TIC. Tecnología Digital en la Educación Superior es producto del trabajo conjunto de un grupo de investigadores, académicos y estudiantes de posgrado de la Universidad Veracruzana. En él se plasma la visión que tienen acerca de las TIC, sus intereses y hallazgos más relevantes en torno al tema. A través de siete capítulos, los autores abordan el tema de las TIC desde diversos ámbitos disciplinares: sociológico, de la comunicación, de la sustentabilidad y de las artes escénicas.

  20. Una mirada sobre la educación superior mexicana: instituciones, saberes y mercado

    OpenAIRE

    Philippe Dautrey

    2013-01-01

    Después de un largo proceso en el que reivindicó su protagonismo en materia de educación, el Estado mexicano llegó a afianzar su papel educador en el nivel superior, en realidad consolidado a raíz de la revolución de 1910. No obstante, ante el crecimiento de la demanda educativa a partir de los años setenta y de la crisis económica de la década de los ochenta, recurrió al mercado quedándose con la rectoría del sistema de educación. La consiguiente extensión del sector privado de nivel superio...

  1. Análisis estructural de las interacciones en una red social a partir de una actividad pedagógica en la educación superior

    Directory of Open Access Journals (Sweden)

    Eva Patricia Vásquez Gómez

    2016-06-01

    Full Text Available El objetivo del presente trabajo es presentar la descripción y análisis de las interacciones entre estudiantes participantes en una actividad pedagógica llevada a cabo en un curso de pregrado de educación superior, en el segundo semestre de 2013, en una universidad regional de Colombia (Universidad de Cundinamarca, sede Fusagasugá, utilizando el Análisis de Redes Sociales (ARS [1]; y, de igual forma, determinar si el comportamiento de los individuos en la red de alguna manera influye en el rendimiento académico individual y grupal. La tutora (coautora de este trabajo estableció un entorno colaborativo como estrategia de aprendizaje utilizando Facebook, donde la comunidad del curso podía participar aportando y debatiendo sobre el tema de estudio relacionado con la aplicación de metodologías de sistemas suaves (MSS en la resolución de problemas no estructurados [2].

  2. Crux vena cava filter.

    Science.gov (United States)

    Murphy, Erin H; Johnson, Eric D; Kopchok, George E; Fogarty, Thomas J; Arko, Frank R

    2009-09-01

    Inferior vena cava filters are widely accepted for pulmonary embolic prophylaxis in high-risk patients with contraindications to anticoagulation. While long-term complications have been associated with permanent filters, retrievable filters are now available and have resulted in the rapid expansion of this technology. Nonetheless, complications are still reported with optional filters. Furthermore, device tilting and thrombus load may prevent retrieval in up to 30% of patients, thereby eliminating the benefits of this technology. The Crux vena cava filter is a novel, self-centering, low-profile filter that is designed for ease of delivery, retrievability and improved efficacy while limiting fatigue-related device complications. This device has been proven safe and user-friendly in an ovine model and has recently been implanted in human subjects.

  3. Novela del Instituto de Educación Media Superior: una historia de violencia y sufrimiento

    Directory of Open Access Journals (Sweden)

    Santos Noé Herrera Mijangos

    2014-01-01

    Full Text Available Este artículo muestra diez años de la novela institucional del Instituto de Educación Media Superior (IEMS en la Ciudad de México. La historia de la institución permite ver las leyendas sobre el origen, mitos, ritos, símbolos, antepasados, fundadores, ceremonias y misión a cumplir. De igual manera, presentamos la violencia y sufrimiento que padecieron los primeros actores institucionales por el incumplimiento de la tarea fundamental. Para conocer la violencia y el sufrimiento que se vivió en IEMS, recurrimos a un encuadre teórico-metodológico a partir el análisis institucional. El punto central de la indagación se centró en sus actores desde un enfoque situacional (en el aquí y ahora e histórico (para saber cómo fueron y llegaron a ser lo que son.

  4. Caracterización de la cultura organizacional de una institución de educación superior

    Directory of Open Access Journals (Sweden)

    Jaime Ferro Vásquez

    2012-01-01

    Full Text Available Abstract In order to characterize the organizational culture of an institution of higher education located in the city of Bogotá, this descriptive research implemented a mixed methodology using the techniques of qualitative data collection in focus groups and a quantitative technique by designing and building Organizational Culture Scale University (ECOU. We had the participation of 336 employees with an age range between 20 and 65 who were chosen by a stratified sampling guided by purpose. Subsequently, we performed an integrated analysis of the data using SPSS software and “Atlas ti”. It showed a weak organizational culture and determined this by each of the administrative or academic areas of the institution, which can be seen in the internal procedures of the same. Resumen Con el objetivo de caracterizar la cultura organizacional de una institución de educación superior ubicada en la ciudad de Bogotá, en el presente artículo de investigación se presentan los resultados de un trabajo de tipo descriptivo en la que se implementó una metodología mixta, utilizando las técnicas de recolección de información cualitativas de grupo focal y una técnica cuantitativa que implicó el diseño y construcción de la Escala de Cultura Organizacional Universitaria (ECOU. Se contó con la participación de 336 empleados, con un rango de edad entre 20 y 65 años, quienes fueron escogidos mediante un muestreo estratificado guiado por propósitos. Posteriormente, se realizó un análisis integrado de la información mediante el software SPSS y el Atlas ti. Se evidenció una cultura organizacional débil y determinada por cada una de las dependencias administrativas o áreas académicas de la institución, lo que se puede observar en los procedimientos internos de la misma.

  5. Conductas promotoras de salud en estudiantes de una institución de educación superior

    Directory of Open Access Journals (Sweden)

    Zaider Gloria Triviño-Vargas

    2012-01-01

    Full Text Available Objetivo: determinar factores predictores que influencian conductas promotoras de salud según modelo de enfermería Pender en estudiantes de una institución de educación superior de Cali, Colombia. Materiales y métodos: Diseño descriptivo correlacional, con muestra de 384 estudiantes, aleatoria estratificada, con nivel de confianza de 95% (¬¬p ≤ 0,05, margen de error del 5%. Las variables fueron la conducta promotora de salud y los factores biopsicosocioculturales. Se aplicaron los instrumentos: escala estilo de vida promotor de salud II para medir la variable dependiente, percepción de autoeficacia, percepción del estado de salud y variables sociodemográficas. Resultados: El 50,1% de estudiantes obtuvo conductas promotoras de salud superiores a la media. Las conductas fortalecidas en estudiantes por encima de la media fueron: crecimiento espiritual (61,7%, relaciones interpersonales (53,4%, responsabilidad en salud (50,5%; las deficitarias por debajo de la media, actividad física (46,7%, manejo del estrés (46% y nutrición (49,6%. Según modelo de regresión múltiple, los factores que predijeron mayor variabilidad en la conducta promotora de salud II, fueron: percepción del estado de salud, autoeficacia y tipo de relación familiar en la vivienda (R2 = 11,6%, p < 0,05. Conclusión: estos factores se consideraron con influencia baja sobre la conducta promotora de estudiantes, pero se recomendó tenerlos en cuenta en la promoción del cuidado de estudiantes.

  6. Prenatal diagnosis of persistent left superior vena cava and associated anomalies%胎儿持续性左上腔静脉及其相关异常研究

    Institute of Scientific and Technical Information of China (English)

    赖祝琴; 杜柳; 吴宏; 杨振宇

    2015-01-01

    associated malformations , chromosomal abnormalities and clinical outcome in the fetuses with persistent left superior vena cava.(PLSVC). Methods 138 Fetuses with prenatal diagnosis of PLSVC from January 2011 to December 2013 were categorized into isolated and non-isolated (associated with cardiac anomalies including other cardiac , great vessels malformation and heterotaxy syndrome;.extracardiac anomalies including other organ malformation and abnormal sonographic soft markers). The associated anomalies, karyotypes and clinical outcome of the two groups were analyzed. Results Of the 138 fetuses with PLSVC,.30(21.7%) were isolated and 108(78.3%) were non-isolated. In the non-isolated cases, 87(63.0%, 87/138) cases were associated with other cardiac anomalies, including 10 (11.5%, 10/138) cases of heterotaxy syndrome; 67 (45.6%, 67/138) cases of other extracardiac anomalies and 46(33.3%, 46/138) cases of both cardiac and extracardiac anomalies. The chromosomal karyotypes and clinical phenotypes were obtained in 99 cases,13(13.1%, 13/99) cases had chromosomal abnormalities including trisomy 18(46.1%, 6/13) trisomy 21(23.1%, 3/13) and one each in trisomy 13, Turner syndrome, 47, XXY, 46, XX, t(6; 13) (q22; q23). Among these 13 fetuses, one case (4.0%, 1/25) with 46,XX, t(6; 13) (q22; q23) was isolated, others (16.2%, 12/74) were non-isolated. The risk of chromosomal abnormalities was significantly higher in fetuses associated with other anomalies. (P<0.05)..The birth rates in the isolated and non-isolated cases were 83.3%(25/30).and 14.8%(16/108) respectively. Two non-isolated cases were died after birth, the survival rate was 95.1% (39/41). Conclusion The PLSVC oftenassociated with additional anomalies, should be considered as a marker of fetal structure malformation. Fetuses of PLSVC with other defects are more highly associated with chromosomal disorders than those of isolated PLSVC..Isolated PLSVC is a benign vascular anomaly and may not affect the outcome.

  7. Clima organizacional en profesores investigadores de una institución de educación superior

    Directory of Open Access Journals (Sweden)

    Sandoval Caraveo, María del Carmen

    2013-09-01

    Full Text Available El objetivo de esta investigación fue determinar la percepción del clima organizacional en el personal docente investigador perteneciente a los cuerpos académicos, es decir, grupos de investigadores que cultivan una o más líneas de generación y aplicación del conocimiento. El estudio se realizó en la Universidad Juárez Autónoma de Tabasco, México. Obedece a que el profesorado se encuentra supeditado a una serie de evaluaciones de sus actividades académicas que repercuten en un clima organizacional en deterioro. La investigación es cuantitativa descriptiva y correlacional, el diseño es no experimental transeccional. Se aplicó un cuestionario de manera directa a una muestra estratificada de la población para medir el constructo en el contexto de la educación superior. Los resultados reportan que el 24% de la población percibe un clima organizacional altamente favorable y el 27% no favorable. Se concluye de manera general que las dimensiones que reportan los valores más bajos son la de interés por la investigación y el estudio y la presión laboral. Sin embargo, la percepción del clima organizacional no es igual en todas las Divisiones Académicas de la Universidad.The objective of this study was to determine the perception of organizational climate among research-leading professors, from the Universidad Juárez Autónoma de Tabasco, affiliated to research units working on one or more areas of research. The study emerged as a response to a series of evaluations that professors undergo systematically to remain within the research units, but which negatively affect the organizational climate. The research had a quantitative, descriptive and correlational design in which a non-experimental or cross-sectional design was taken. The study was conducted using stratified sampling. A questionnaire was administered to examine the participants’ perception of organizational climate construct in their context of higher education. The

  8. La evaluación de la integración de las TIC en la educación superior: fundamento para una metodología

    National Research Council Canada - National Science Library

    Pedro Nolasco Vázquez; Mario Miguel Ojeda Ramírez

    2016-01-01

    Se sustenta y propone una metodología que permite el estudio de la incorporación de las tecnologías de la información y comunicaciones (TIC) en la educación superior, desde el enfoque del comportamiento organizacional post...

  9. Diseño personalizado de una interfaz mioeléctrica para una prótesis de miembro superior

    Directory of Open Access Journals (Sweden)

    Christopher René Torres-San-Miguel

    2012-06-01

    Full Text Available Normal 0 21 false false false ES-CO X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} Título en ingles: Custom design of a myoelectric interface for upper limb prostheses Resumen Desde los años sesenta se utilizan las señales electromoigráficas (EMG como señales de control para prótesis actuadas por servomotores, así como en la estimulación de músculos que sufren de parálisis o de atrofia parcial. Mediante el avance tecnológico se ha logrado mejorar el diseño, así como la fabricación de sistemas protésicos, que funcionan como extensiones de algún miembro del cuerpo humano, agregando además con los nuevos diseños, características básicas como: flexibilidad, estética morfológica, incremento de la relación resistencia/peso así como multifuncionalidad. Una prótesis mioeléctrica es una estructura desarrollada con el fin de reemplazar una parte o la totalidad de un miembro del cuerpo humano, lo mismo que suplir las funciones perdidas de este, sin dejar de lado la imagen corporal del paciente. Estas prótesis son accionadas por actuadores que se controlan a través de señales EMG, las cuales se obtiene mediante agujas intramusculares superficiales o por medio de electrodos colocados en el muñón del paciente. Este tipo de prótesis es cada vez más aceptado por

  10. Diseño de un plan de comunicación organizacional interna y externa para una institución de educación superior

    OpenAIRE

    Bermúdez Santana, Daniela Judith

    2015-01-01

    1. Introducción. -- 2. Planteamiento de la Propuesta de Trabajo. -- 3. Marco Teórico. -- 4. Metodología. -- 5. Resultados. -- 6. Conclusiones y Recomendaciones Este trabajo de investigación tiene como objetivo fundamental Diseñar un Plan de Comunicación Organizacional Interna y Externa para una Institución de Educación Superior, planteamiento que surge de la necesidad de afrontar los continuos procesos de cambio que atraviesan las instituciones de educación superior, al presentarse nuevos ...

  11. Satisfacción laboral en una institución educativa de nivel superior del Estado de México

    OpenAIRE

    Ana Luisa Ramírez Roja; Juan Pedro Benítez Guadarrama

    2012-01-01

    La presente investigación muestra resultados sobre los niveles de satisfacción laboral en una muestra de trabajadores pertenecientes a una institución educativa de Nivel Superior del Estado de México. La investigación fue descriptiva, correlacional, explicativa, transversal; con un diseño no experimental; realizada con el universo de la población perteneciente a tres categorías: directivos y personal de confianza, administrativos y profesores de asignatura. Para medir la satisfacción laboral...

  12. Propuesta de modelo de gestión para educación superior a distancia: una aproximación

    Directory of Open Access Journals (Sweden)

    Adriana Elizabeth Morantes Higuera

    2013-01-01

    Full Text Available El concepto de modelo de gestión ha venido incorporándose como soporte para la administración de las organizaciones. Dada la particular connotación de las Instituciones que ofrecen Educación Superior a Distancia (IESAD, se sintetiza en el artículo la caracterización de la metodología de educación superior a distancia, analizando la problemática inherente; además se presenta un acerca- miento al concepto de modelo de gestión para finalmente desarrollar una propuesta teórica. El modelo propuesto integra los factores de gestión de calidad, gestión organizacional, gestión académica y gestión externa, determinantes para una administración efectiva en este tipo de instituciones.

  13. El nivel de inglés después de cursar educación superior en Colombia: una comparación de distribuciones

    Directory of Open Access Journals (Sweden)

    Julio César Alonso

    2015-12-01

    Full Text Available El gobierno colombiano impulsa una política nacional para fortalecer las competencias comunicativas en inglés en todos los niveles educativos, en especial en la educación superior, pero poco se ha escrito sobre los logros de esa política. Este artículo describe los cambios en la distribución del nivel de inglés entre el ingreso y la terminación de la educación superior. Los resultados muestran que hay una mejora, dado el paso a niveles más altos de calificación, y un aumento de la polarización.

  14. Las pinturas zoomorfas punteadas del Paleolítico Superior cantábrico: hacia una cronología dilatada de una tradición gráfica homogénea

    Directory of Open Access Journals (Sweden)

    Gárate Maidagan, Diego

    2008-12-01

    Full Text Available Not available.

    Las cuevas decoradas con animales punteados rojos son una de las principales expresiones pictóricas propias del Paleolítico Superior cantábrico. Los nuevos descubrimientos así como la introducción de sistemas novedosos de datación han abierto la posibilidad de atribuirlas a una cronología más antigua y, a la vez, más amplia.
    Presentamos el corpus de datos cronológicos disponible que nos permite fundamentar un desarrollo dilatado de las pinturas animales punteadas, así como plantear una tendencia interna hacia una expresión gráfica progresivamente más hermética que gira en torno a la representación de la cierva, con unos patrones recurrentes perfectamente definidos.

  15. Las enseñanzas artísticas superiores y el Espacio Europeo de Educación Superior en España. Una lectura crítica

    Directory of Open Access Journals (Sweden)

    Manuel Francisco VIEITES

    2016-05-01

    Full Text Available El Real Decreto 1614/2009, de 26 de octubre, que establecía la ordenación de las enseñanzas artísticas superiores reguladas por la Ley Orgánica 1/2006, de 3 de mayo, de Educación, señalaba que dichas enseñanzas debieran converger en el Espacio Europeo de Educación Superior. Pasados cuatro años de la implantación de los nuevos planes de estudio y egresada la primera promoción formada al amparo de la Declaración de Bolonia, analizamos en qué medida se ha producido ese proceso de convergencia atendiendo a parámetros utilizados en otras instituciones de formación superior como las universidades, a partir de la legislación aplicable y de las medidas que se han adoptado tanto a nivel ministerial como en las comunidades autónomas. Finalmente ofrecemos una propuesta que permita hacer de esa integración un punto de inflexión en el fomento y puesta en valor de unas enseñanzas fundamentales en el desarrollo de nuestro sistema cultural.

  16. El modelo-pais en la constitucion politica y en unas pocas leyes superiores: marco referencial para lograr una mejor investigacion academica y un real desarrollo nacional

    National Research Council Canada - National Science Library

    Segura, Johnny Meono

    2009-01-01

    ... teorica o aplicada y de docencia, pero tambien de praxis profesional y laboral, la existencia de un marco referencial superior de pais via los derechos del habitante y de pautas para el excelente...

  17. PERSISTENT LEFT SUPERIOR VENACAVA

    Directory of Open Access Journals (Sweden)

    Devinder Singh

    2014-05-01

    Full Text Available A Persistent Left Superior Venacava (PLSVC is the most common variation of the thoracic venous system and rare congenital vascular anomaly and is prevalent in 0.3% of the population. It may be associated with other cardiovascular abnormalities including atrial septal defect, bicuspid aortic valve, coarctation of aorta, coronary sinus ostial atresia, and cor triatriatum. Incidental rotation of a dilated coronary sinus on echocardiography should raise the suspicion of PLSVC. The diagnosis should be confirmed by saline contrast echocardiography. Condition is usually asymptomatic. Here we present a rare case of persistent left superior vena cava presented in OPD with dyspnoea & palpitations.

  18. Diálogos para la construcción de una nueva Ley de Educación Superior

    OpenAIRE

    Londoño Orozco, Alfonso

    2011-01-01

    Intervención en uno de los Foros programados por ASCUN SUE. Parte de indicadores básicos, suministrados por el Sistema de Información de la Educación Superior (Snies) del Ministerio de Educación Nacional, que según al autor permitan conocer el estado actual de la educación superior en Colombia, con el fin de sugerir puntos de discución.

  19. Relacion del Clima Organizacional y Satisfaccion Laboral en Profesores de Tiempo Parcial de una Institucion de Educacion Superior

    OpenAIRE

    Flores Valentín, Merarí

    2002-01-01

    El Clima Organizacional de un grupo social es una variable mediadora entre los propósitos y los logros del mismo grupo. En el contexto educativo significa que entre lo que se planifica (objetivos, metas, fines) en una unidad educativa y lo que se logra (metas institucionales, rendimiento) hay una distancia que no se llena por la mera acción de instancias separadas sino por la interacción de muchas variables que en cuanto percibidas por los actores sociales dan origen a "clim...

  20. Uso de Facebook para la socialización del aprendizaje de una segunda lengua en nivel medio superior

    Directory of Open Access Journals (Sweden)

    Sandra Gudiño Paredes

    2014-01-01

    Full Text Available El estudio analizó la práctica de socialización de una segunda lengua dentro de una comunidad virtual alojada en Facebook. El objetivo de la intervención fue buscar transcender las prácticas convencionales de aprendizaje del inglés y privilegiar la socialización en un marco tecnológico y humanista. La pregunta de investigación fue ¿cómo actúan los alumnos del primer año de preparatoria cuando se comunican en inglés como segunda lengua dentro de una comunidad de práctica virtual? La metodología tuvo un enfoque mixto, ya que incluyó un cuestionario inicial de corte cuantitativo y el uso de las técnicas de análisis de la conversación y entrevista semiestructurada, las cuales forman parte del enfoque cualitativo. Los resultados demuestran que la práctica de una segunda lengua mediada por tecnología en una comunidad virtual promueve la comunicación, la socialización del conocimiento y la interacción entre los alumnos y el docente.

  1. Una cubierta hinchable en la escuela técnica superior de arquitectura de Valladolid, España

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    Monjo Carrio, Juan

    1986-06-01

    Full Text Available The article contents a description of the design and erection process of a pneumatic dome, set up by the last year students of the School of Architecture at the University of Valladolid in order to obtain a covered space, wide enough to celebrate an exhibition of construction materials. A brief description is made of the calculations as well as the fases of patterns definition, joining, site works, reinforcements, erection and maintenance through ventilators. The text is completed by a collection of deawings and pictures of the whole process.El artículo contiene una descripción del proceso del diseño y montaje de una cubierta soportada por aire, instalada por los alumnos de 6.0 curso dé la Escuela T. S. de Arquitectura de la Universidad de Valladolid, con el objeto de obtener un espacio cubierto de suficiente amplitud para celebrar en él una exposición de materiales y elementos de construcción. Se realiza una breve descripción del cálculo, así como de las fases de despiece, cosido de juntas, confección general de la cubierta, replanteo, montaje, anclaje y erección (hinchado y mantenimiento mediante el uso de ventiladores centrífugos. El texto se complementa con una amplia colección de dibujos y fotografías relativos á todo el proceso.

  2. LA FISCALIZACIÓN SUPERIOR A NIVEL SUBNACIONAL EN MÉXICO. UNA EVALUACIÓN DEL DESEMPEÑO DE LAS ENTIDADES DE FISCALIZACIÓN SUPERIOR (EFS LOCALES

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    Anahí Gutiérrez Luna

    2015-12-01

    Full Text Available Actualmente, las Entidades de Fiscalización Superior (EFS locales en México presentan diferencias importantes no sólo en su diseño institucional y en su evolución estructural, sino en el desempeño de sus capacidades, cobertura y efectividad. Por ello, el objetivo principal de este texto es explicar los factores que determinan las diferencias en el desempeño de las EFS a nivel subnacional. Se parte de la hipótesis de que esas diferencias se explican a partir de factores externos e internos a la propia organización de la EFS. El factor externo se refiere a un fenómeno político: la distribución del poder político en los congresos locales. Por otro lado, los factores internos implican las reglas formales reflejadas en la calidad del marco normativo de las entidades de fiscalización y la suficiencia de su presupuesto anual. Para contrastar la hipótesis se llevó a cabo un estudio de tres indicadores de desempeño que se refieren a la capacidad de las EFS en el desarrollo de las auditorías, a la cobertura de la fiscalización que llevan a cabo y a la efectividad de su proceso auditor en 17 órganos fiscalizadores durante el año 2013. Finalmente, se realiza una evaluación general que permite la construcción de un índice de desempeño. Este ensayo incluye una reflexión que parte del marco teórico de la fiscalización superior como uno de los principales instrumentos de control político en los regímenes democráticos y finaliza con una aportación a la discusión teórica sobre las implicaciones de un control y fiscalización efectivos en las entidades federativas para la calidad de una democracia como la mexicana.

  3. UNA BILLETERA PARA LA ENSEÑANZA MUSICAL INSTRUMENTAL EN LA EDUCACIÓN SUPERIOR: UNA REFLEXIÓN DESDE LA SOCIOLOGÍA Y LO TRANSDISCIPLINAR

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    Guillermo Rosabal-Coto

    2012-01-01

    Full Text Available Este ensayo pretende servir de reflexión en torno a retos específicos que las y los docentes de ejecución de instrumentos musicales en centros de educación superior suelen enfrentar en su práctica educativa, específicamente en relación con los contextos, bagajes, y metas del estudiantado. La reflexión se apoya en conceptos de índole sociológico y propone interrogantes y acciones conducentes a un abordaje transdisciplinario de los retos en cuestión. Está escrita en un estilo coloquial, con el objeto de lograr cercanía con las personas destinatarias, e incluye el planteamiento de un caso específico como anexo.

  4. ESTRATEGIAS DE APRENDIZAJE Y SU RELACIÓN CON EL RENDIMIENTO ACADÉMICO EN ESTUDIANTES DE UNA ESCUELA PRIVADA DE EDUCACIÓN MEDIA SUPERIOR

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    Ruth Roux

    2015-01-01

    Full Text Available Las estrategias de aprendizaje son actividades o procesos mentales que llevan a cabo los y las estudiantes intencionalmente para procesar, entender y adoptar la información que reciben en el proceso educativo. Este artículo presenta un estudio correlacional que examinó el uso de estrategias de aprendizaje de 162 estudiantes de educación media superior en un colegio privado del noreste de México. Los objetivos eran identificar las estrategias de aprendizaje más utilizadas y conocer la relación entre las estrategias empleadas y las calificaciones reportadas para el período escolar inmediato anterior a la realización del estudio. Se usó el Cuestionario de Evaluación de las Estrategias de Aprendizaje para Estudiantes Universitarios (CEVEAPEU. Las estrategias más utilizadas fueron las motivacionales (ejemplo: la inteligencia se puede incrementar con el esfuerzo y las metacognitivas (ejemplo: procuro aprender de mis errores. La estrategia que mostró mayor correlación con el rendimiento académico fue: tomar apuntes en clase, que es una estrategia de procesamiento y uso de información. Los reactivos que resultaron con baja correlación fueron: la inteligencia se tiene o no y no se tiene y no se puede mejorar (motivacional, y aporto ideas personales (procesamiento y uso de información. El estudio sugiere adaptar el instrumento para su uso en el nivel medio superior y poner mayor atención a la enseñanza de las estrategias de aprendizaje en la educación media superior mexicana. Sobre todo las que se usan en la selección, procesamiento y uso de la información, necesarias en el desarrollo de una sociedad basada en el conocimiento.

  5. La Formación Achavil: una nueva unidad de bajo grado metamórfico en la evolución Cámbrica Superior del Famatina

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    Gilda Collo

    2008-09-01

    Full Text Available La existencia de una unidad metamórfica de bajo grado, diferente a la Formación Negro Peinado, pudo establecerse a partir de estudios sedimentológicos, estratigráficos, mineralógicos, estructurales y geocronológicos de detalle realizados en el Famatina. Para esta nueva unidad se propone el nombre Formación Achavil (nom. nov., se establece su localidad tipo y se detalla su extensión regional. En la misma se reconocen cuatro litofacies principales, que permiten interpretar ambientes de depositación más someros que los tradicionalmente aceptados para la Formación Negro Peinado. Su edad de depositación habría estado comprendida entre el Cámbrico Medio alto y el Cámbrico Superior, considerando la edad cámbrica superior-tremadociana de la suprayacente Formación Volcancito. Este intervalo sería correlativo con el Grupo Mesón en el Noroeste Argentino y no, como frecuentemente se ha interpretado, con la Formación Puncoviscana. En la Formación Achavil se reconocen, además, dos episodios de deformación superpuestos acotados al Cámbrico Superior, edad de depositación de las rocas no deformadas de la Formación Volcancito. A partir de los resultados expuestos se establecen potenciales correlaciones entre la Formación Achavil y otras unidades del paleozoico inferior de la región que permiten realizar una reconstrucción paleogeográfica y evolutiva para el margen occidental de Gondwana durante ese período.

  6. La Fiscalización Superior en México: una propuesta en el contexto de la gobernanza

    OpenAIRE

    2011-01-01

    En la presente ponencia se analizará la función de fiscalización superior en México desde la perspectiva de la autonomía que tienen dichas entidades para el ejercicio de dicha función y de las facultades sancionatorias que le otorgan las leyes en la materia. La ponencia identifica la necesidad de reformar las leyes de fiscalización en México con instrumentos que incrementen la efectividad del trabajo de las EFS y con esquemas que privilegien la participación ciudadana en dicha función. Asimis...

  7. Diastema medio interincisal y su relación con el frenillo labial superior: una revisión

    OpenAIRE

    Díaz Pizán, María Elena; Facultad de Estomatología, Universidad Peruana Cayetano Heredia. Lima,

    2014-01-01

    El diastema medio interincisal es una característica normal en la dentición decidua y mixta, lacual tiende a desaparecer posteriormente con la erupción de los caninos y segundas molaressuperiores permanentes. La mayoría de investigadores coinciden en señalar que el frenillo labialsuperior anómalo puede ser un importante factor etiológico en casos de diastemas patológicos,existiendo también otros factores como: hábitos perniciosos prolongados, desequilibrio muscularde la cavidad bucal, impedim...

  8. Etiología de los caninos superiores impactados: una visión histórica

    OpenAIRE

    Diego Luis Arellano; Jhon Fredy Briceño Castellanos; Daira Nayive Escobar Leguízamo

    2012-01-01

    Los caninos maxilares impactados (CMI) son una frecuente condición clínica, a pesar de la relativa baja prevalencia de impactación oral. Muchos estudios se han enfocado en la práctica terapéutica, que consta de un abordaje interdisciplinario que en muchas ocasiones implica varias especialidades, pero la evidencia disponible sobre su etiología ha sido diversa y escasa. A continuación se explora literatura disponible de antecedentes históricos que permiten explicar las diferentes teorías sobre ...

  9. LA AUTOEVALUACIÓN: UNA INICIATIVA PARA LA GESTIÓN DE LA CALIDAD EN EDUCACIÓN SUPERIOR

    Directory of Open Access Journals (Sweden)

    Margarita Cobo Muñoz

    2007-12-01

    Full Text Available

    Los modelos de gestión de la calidad plantean la evaluación del sistema de gestión como requisito clave del desempeño, lo que ha generado dificultades en instituciones de educación superior cuando se intenta establecer la forma de realizarla. El objetivo de esta investigación es desarrollar instrumentos para la autoevaluación en educación superior que permitan determinar el grado de madurez en el desempeño de la gestión de la calidad. Se diseñaron cinco instrumentos basados en ISO 9000, Baldrige, EFQM y AUIP; su aplicación sistemática en un Programa de Posgrado, evidencia su efectividad para determinar cuantitativamente el grado de madurez en el desempeño.

  10. Integrando actividades de gestión de la información en Educación Superior : una experiencia en informática educativa

    Directory of Open Access Journals (Sweden)

    Susana Molina Martín

    2013-05-01

    Full Text Available Una importante misión de las instituciones de educación superior es formar personas capaces de aprender a lo largo de la vida, a cuyo logro contribuye la competencia gestión de la información. El entorno actual, en el que proliferan nuevos recursos de información, hace que los individuos necesiten nuevas habilidades relacionadas con la localización, evaluación y uso eficaz de la información. Por ello, presentamos en este trabajo una experiencia cuyo principal objetivo ha sido desarrollar diversas habilidades relacionadas con la gestión de la información mediante su integración en las actividades de la asignatura Informática Educativa de la Licenciatura de Pedagogía de la Universidad de Oviedo. Los resultados muestran que el nivel de los estudiantes en algunas de estas habilidades, como el diseño e implementación de una estrategia de búsqueda, la evaluación crítica de la información obtenida o la elaboración de conclusiones a partir de su lectura, es insuficiente, por lo que sería recomendable que los futuros planes de estudio de la Universidad integren esta competencia en los programas de las materias.

  11. Sobre una conceptualización de la popularización del Derecho en la educación superior

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    Sandra Patricia Duque Quintero

    2014-01-01

    Full Text Available En este artículo de investigación se conceptualiza y fundamenta la popularización del derecho en la educación superior. Para responder al objetivo general de la investigación: fundamentar la popularización del derecho en el consultorio jurídico, se parte de los postulados de la didáctica universitaria y de la pedagogía crítica, que señalan el deber de una formación ligada a las realidades sociales. Así, desde una investigación cualitativa con enfoque hermenéutico, realizada en tres universidades de la ciudad de Medellín (Colombia, en la que se trabajó con 22 profesores, 69 estudiantes de las Facultades de Derecho y 75 usuarios de los consultorios jurídicos de dichas universidades, se concluye que en una facultad de derecho, el consultorio jurídico es el lugar privilegiado donde el estudiante está en contacto directo con las realidades y problemáticas en torno al derecho y que posibilita la formación de un estudiante popularizador, con conciencia acerca de su rol en la sociedad y del papel que al saber jurídico le cabe en relación con la solución a problemas reales y sentidos de las comunidades.

  12. CALIDAD PROFESIONAL DEL TÉCNICO SUPERIOR UNIVERSITARIO EN ADMINISTRACIÓN. UNA VISIÓN DE GRADUADOS Y DE EMPLEADORES

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    Javier Damián Simón

    2009-01-01

    Full Text Available Se presentan los resultados del trabajo de investigación de un estudio de caso "Calidad profesional del Técnico Superior Universitario en Administración. Una visión de graduados y de empleadores". El objetivo fue evaluar el grado de cumplimiento en las funciones y tareas del ejercicio profesional de los TSUA, así como las habilidades y actitudes de los mismos en respuesta al perfil profesional solicitado por el empleador e, identificar las exigencias profesionales a las que se enfrentan dichos graduados. Se trabajó con una muestra de 60 graduados de las primeras cuatro generaciones y se entrevistó a dieciocho empleadores que a la fecha han contratado a una gran cantidad de graduados. Los resultados obtenidos al contrastar las opiniones de los graduados y las de los empleadores muestran un alto grado de concordancia, existe satisfacción de los empleadores en cuanto al nivel de cumplimiento de las funciones, habilidades y actitudes de los TSUA; no obstante, los graduados presentan un bajo grado de satisfacción en el nivel salarial que obtienen, el escaso reconocimiento profesional alcanzado, el tipo de puesto que ocupan y la posición jerárquica alcanzada.

  13. Sistema de memoria organizacional para centros I+D de una institución de educación superior

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    Ruth Reátegui, Ana Poma

    2015-05-01

    Full Text Available El objetivo del artículo es proponer un modelo de Sistemas de Memoria Organizacional (SMO para un centro de Investigación y Desarrollo (I+D basado en cuatro componentes: social, cultural, tecnológico y de procesos para una IES de Ecuador. Las instituciones de educación superior (IES son organizaciones donde la investigación es una de sus actividades fundamentales que requiere una adecuada gestión del conocimiento. Para esta propuesta se utilizó un método de investigación inductiva basado en entrevistas a los docentes involucrados para conocer las actividades y procesos que conlleva el desarrollo de este tipo de proyectos. Los SMO permiten preservar el conocimiento para ser utilizarlo en las actividades actuales y futuras. Uno de los problemas encontrados es que no se está conservando ni mucho menos compartiendo el conocimiento que las personas poseen como resultado de experiencias, prácticas, actitudes, entre otros aspectos, relacionados con los proyectos. Además el modelo resultante se implementó en un sistema basado en software libre y tecnologías web. La implementación de este modelo muestra como resultado un alto nivel de aceptación por parte de directivos e investigadores de los centros de I+D.

  14. La Universidad Virtual del ITESM: hacia una transformación de la educación superior

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    Marisa MARTÍN

    2016-03-01

    Full Text Available This article presents a virtual space for education developed at the Instituto Tecnológico y de Estudios Superiores de Monterrey (ITESM in Mexico. It describes problems and achievements, educational and technological decisions that have been made, the implications at an organizational level and of the actual protagonists of the process: teachers and students, trends and issues.The ITESM Virtual University is becoming a dynamic institution in a continual process of construction and evolution, an institution that has incorporated innovation and creativity into its working philosophy, that is permanently adapting the new technologies to educational processes, and is open to national and international educational needs while presenting different options for giving an educational response of quality in future years.

  15. Etiología de los caninos superiores impactados: una visión histórica

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    Diego Luis Arellano

    2012-09-01

    Full Text Available Los caninos maxilares impactados (CMI son una frecuente condición clínica, a pesar de la relativa baja prevalencia de impactación oral. Muchos estudios se han enfocado en la práctica terapéutica, que consta de un abordaje interdisciplinario que en muchas ocasiones implica varias especialidades, pero la evidencia disponible sobre su etiología ha sido diversa y escasa. A continuación se explora literatura disponible de antecedentes históricos que permiten explicar las diferentes teorías sobre la etiología de los caninos impactados. Así se resalta la importancia de realizar un diagnóstico temprano de dicha alteración para facilitar su manejo y reducir las secuelas.

  16. Misión de la educación superior en una frontera de épocas

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    Ángel Ruiz Zúñiga

    2004-12-01

    Full Text Available Resumen. Se estudian las principales tendencias que conforman el contexto histórico que vivimos: Post Guerra Fría, mundialización acelerada, ruptura con la Modernidad, transición y fronteras de épocas. Y, sobre todo: potenciación del conocimiento como vector edificante de los nuevos tiempos. En ese escenario se pasa revisión a las principales características de la educación superior; expansión, diversificación, nueva relación con el entorno social, transdisciplina, educación permanente, internacionalización y globalización radicales, y además la calidad y la pertinencia social como fundamento, dentro de un replanteo de muchas de las principales variables de definición de sus quehaceres.   Abstract. Analysis of the main trends found in the historical scenario we live in: the Post Cold War period, globalization, disruption of Modernity, transition and limits of historical ages, and above all, modern knowledge as the builder of a new era. The main characteristics that define higher education are reviewed within this context; these traits are: expansion, diversification, its new relationship with the social context, transdiscipline, permanent education, radical internationalization and globalization, as well as quality and social adequacy as a basis in university activities. This is part of the redefinition of the main variables that characterize university activities.

  17. EFECTIVIDAD DE LOS SISTEMAS DE MEMORIA ORGANIZACIONAL DE UNA INSTITUCIÓN DE EDUCACIÓN SUPERIOR

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    Ruth Reátegui

    2013-01-01

    Full Text Available La memoria organizacional es el medio por el cual el conocimiento del pasado es usado en las actividades actuales. Los sistemas de memoria organizacional (SMO basados en computador son un tipo de memoria organizacional con soporte tecnológico que ayudan a explicitar el conocimiento. Por lo anterior, el presente artículo es una investigación cualitativa, que centra su estudio en los SMO; para ello, se realizaron entrevistas semiestructuradas a los docentes de la Universidad Técnica Particular de Loja (UTPL, Ecuador, con el objetivo de evaluar la efectividad de esos sistemas utilizados en las actividades académicas. Fue confirmado que los profesores para esa evaluación consideraron los contenidos, estructura y los procesos operativos de recolección, mantenimiento y acceso al conocimiento. Otros resultados encontrados son el soporte de los contenidos para el proceso enseñanza aprendizaje; el formato de los contenidos y la difusión de los sistemas dentro de la organización.

  18. RECURSOS DE GOOGLE PARA EL DESARROLLO DE UNA UNIDAD DIDÁCTICA CON ESTUDIANTES DE EDUCACIÓN SUPERIOR

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    Esteban González Pérez

    2011-01-01

    Full Text Available En la experiencia docente que motivó este artículo, se utilizaron distintos recursos disponibles desde el portal de Google.com para el abordaje de una unidad temática del curso Referencia II del Bachillerato en Bibliotecología y Ciencias de la Información de la Universidad de Costa Rica. Los temas abordados fueron la Web 2.0: su aplicación académica y las necesidades de información y su abordaje. El grupo de estudiantes participantes del curso mostró gran motivación en el desarrollo de las actividades programadas, generando reflexión y argumentos en ambos temas. Se concluye que el uso de recursos, tales como bitácoras, grupos de discusión, documentos compartidos y el correo electrónico provistos por Google de forma gratuita, se pueden considerar como recursos didácticos en el proceso de mediación docente.

  19. FACTORES DE CONTEXTO SOCIOECONÓMICOS Y EDUCATIVOS EN ESTUDIANTES DE NIVEL SUPERIOR, SUGERENCIA PARA UNA REALIDAD ACTUAL

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    Elvira Ivone Gonzalez

    2015-01-01

    Full Text Available Investigación es un análisis comparativo entre factores de contexto y rendimiento académico para conocer cuáles son los factores que predicen el alto o bajo rendimiento escolar en universitarios. Diseño no experimental, transversal, de campo, en formato de encuesta descriptivo y analítico. Población de 45,161 estudiantes universitarios y con selección de una muestra forzada de 6,425 (14% dividida en dos grupo por rendimiento: grupo de bajo 1,233 (3% y grupo de alto 5,192 (11%. Las variables que predicen en p <0.05 fueron: la historia académica (71.1%, horas dedicadas al trabajo en área educativa (69% Hábitos alimenticios (74% Formas de aprendizaje (79% Hábitos de estudio (63%, la situación socioeconómica (58% y con malas instalaciones educativas (60%. Se realizan recomendaciones para impactar el índice de eficiencia terminal. Lo que va a permitir insertar a los jóvenes preparados y responsables dentro de la sociedad económicamente activa.

  20. Una crítica a los Comités Interinstitucionales para la Evaluación de la Educación Superior

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    Hugo Aboites

    2003-01-01

    Full Text Available Los Comités Interinstitucionales para la Evaluación de la Educación Superior (CIEES fueron presentados en México en 1992 como un instrumento de evaluación entre pares, orientado a generar una dinámica de constante mejoramiento en la educación superior mexicana. A diez años de existencia, sin embargo, y como lo ejemplifica el caso del Comité de Ciencias Agropecuarias, se han vuelto evidentes los problemas estructurales del proyecto y éstos cuestionan de fondo su validez para el papel que deben asumir las universidades mexicanas en este momento. Entre otras cosas, no tienen sustento legal alguno, y de allí su fuerte carácter discrecional; forman parte integral de un proyecto gubernamental y proempresarial que tiende a generar una visión unilateral de la problemática mexicana, en este caso la del campo y, finalmente, esa visión unilateral se traduce en la creación de una norma o parámetro frente al cual los planes y programas de las carreras del país son evaluados. Este marco de referencia único, y nacional, se adhiere de lleno a una visión del futuro de las profesiones agropecuarias, irremediablemente ligado a la trasnacionalización del campo mexicano. Su futuro y el de los egresados de las escuelas profesionales está en función de grandes empresas extranjeras. Aquellas escuelas o facultades que no lo asuman estarán condenadas a desaparecer o a generar profesionales encargados del cuidado de mascotas. La visión que alientan los CIEES, sin embargo, es la exportada desde los polos dominantes, según la cual, a diferencia de los países hegemónicos, para los países periféricos no existe ya la posibilidad de proyectos nacionales ni soberanía, ni alternativa distinta a la de subsumirse en el mercado global. Las instituciones de educación superior, no obstante, pueden tener una función clave para generar perspectivas y profesionales que tengan en cuenta la complejidad del campo mexicano, su potencial histórico ligado a

  1. Medical image of the week: duplicate superior vena cava

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    L'Heureux D

    2013-04-01

    Full Text Available A persistent left SVC is the most common thoracic venous anomaly and usually opens into the right atrium via the coronary sinus. A central line inserted into the left SVC may be mistaken for placement in other sites such as the subclavian or carotid artery, the mediastinum, the pericardium or pleural space. A duplicate SVC may cause difficulty in introducing central venous catheters or pulmonary artery catheters because of the narrow opening of the coronary sinus to reach the right atrium. In addition, a duplicate SVC is associated with important cardiac conditions such as atrial septal defects and ventricular arrhythmias.

  2. Efectividad de los sistemas de memoria organizacional de una institución de educación superior

    Directory of Open Access Journals (Sweden)

    Reátegui, Ruth

    2013-01-01

    Full Text Available Resumen: La memoria organizacional es el medio por el cual el conocimiento del pasado es usado en las actividades actuales. Los sistemas de memoria organizacional (SMO basados en computador son un tipo de memoria organizacional con soporte tecnológico que ayudan a explicitar el conocimiento. Por lo anterior, el presente artículo es una investigación cualitativa, que centra su estudio en los SMO; para ello, se realizaron entrevistas semiestructuradas a los docentes de la Universidad Técnica Particular de Loja (UTPL, Ecuador, con el objetivo de evaluar la efectividad de esos sistemas utilizados en las actividades académicas. Fue confirmado que los profesores para esa evaluación consideraron los contenidos, estructura y los procesos operativos de recolección, mantenimiento y acceso al conocimiento. Otros resultados encontrados son el soporte de los contenidos para el proceso enseñanza aprendizaje; el formato de los contenidos y la difusión de los sistemas dentro de la organización.Abstract: Organizational memory is the means by which past knowledge can be used in current activities. Organizational Memory Systems (OMS, which are computer-based, are a type of organizational memory with technological support that aims to make knowledge more explicit. This article is a qualitative research study that focuses primarily on OMS. To this end, some semi-structured interviews were carried out with professors from the Universidad Técnica Particular de Loja (UTPL, Ecuador, that is, with the aim of evaluating the effectiveness of the systems that are used in academic activities. It was confirmed that for this evaluation the UTPL professors considered contents, structure and operative processes like collecting, maintaining and accessing knowledge. Other results obtained from this study were content support for the teaching-learning process, content format, and the diffusion of the OMS within an organization.

  3. Creating a Fontan fenestration in a child with dextrocardia and interrupted inferior vena cava.

    Science.gov (United States)

    Charlagorla, Pradeepkumar; Breinholt, John P

    2016-01-01

    Plastic bronchitis is a rare life-threatening complication of the Fontan operation. Transcatheter Fontan fenestration can ameliorate symptoms by decompressing elevated venous pressures. Transcatheter creation of a fenestration can be technically challenging in cases with complex venous anatomy. We report a case of a 5-year-old boy with heterotaxy, dextrocardia with unbalanced atrioventricular canal (AVC), atrial and visceral situs inversus, left-sided superior vena cava (SVC), and left-sided interrupted inferior vena cava (IVC) with azygos continuation. With few modifications to the equipment, a successful Fontan fenestration with stent implantation was performed via transjugular approach. At 2-year follow-up, his symptoms of plastic bronchitis improved significantly.

  4. La evaluación de la integración de las TIC en la educación superior: fundamento para una metodología

    Directory of Open Access Journals (Sweden)

    Pedro Nolasco Vázquez

    2016-01-01

    Full Text Available Se sustenta y propone una metodología que permite el estudio de la incorporación de las tecnologías de la información y comunicaciones (TIC en la educación superior, desde el enfoque del comportamiento organizacional post-implementación tecnológica. Convencionalmente, las metodologías propuestas para este fin están basadas en el Capability Maturity Model (CMM: a mayor madurez digital de los procesos clave, mayor madurez organizacional (Duarte & Ventura, 2011. Sin embargo, el CMM no considera la relación de los individuos en la organización con la tecnología implementada, lo que puede influir en diagnósticos incompletos, la rentabilidad de la inversión y el éxito de la implementación. Por tal motivo, se propone una metodología fundamentada en el comportamiento organizacional post-implementación tecnológica, que se complementa con el concepto de apropiación tecnológica y el modelo conceptual para la medición de las TIC en la educación de la UNESCO (2009. La prueba piloto permitió evaluar su viabilidad para la elaboración de diagnósticos preliminares.

  5. Desarrollo de competencias emprendedoras, una iniciativa para mejorar la enseñanza de TIC´S en el nivel superior

    Directory of Open Access Journals (Sweden)

    Aurora Estrada García

    2013-02-01

    Full Text Available Se trata de una propuesta, que incide en la mejora de la práctica docente, a través de la adecuación del programa sintético de la Unida de Aprendizaje (UA, de Tecnologías de la Información y Comunicación (TIC´S, que se imparte en el Nivel de Formación Básica, Disciplinaria e Integral (Nivel FBDI, en las licenciaturas de la Escuela Superior de Comercio y Administración (ESCA, Unidad Santo Tomás (UST del Instituto Politécnico Nacional (IPN. La propuesta se desarrolla, al integrar al programa sintético de la UA, estrategias didácticas que promueven el desarrollo de competencias de trabajo por proyectos, y de trabajo colaborativo, así como actitudes emprendedoras, a través de la aplicación de una metodología para elaboración de planes de negocios, asistida por el uso y aplicación de las competencias TIC´S, que se instruyen en la UA. El proyecto se concreta, en un plan de negocios innovador y viable, que se pretende comercializar a través del e-comerce

  6. Pequeño planeta sostenible - una práctica interdisciplinaria en Educación Ambiental en la Educación Superior

    Directory of Open Access Journals (Sweden)

    Elizabeth Aparecida Assis Brandão Danhão

    2015-12-01

    Full Text Available Este trabajo se sugiere la realización de una actividad práctica en la educación ambiental para sensibilizar y aclarar la sostenibilidad en la escuela. Esta actividad se llevó a cabo un taller para 70 estudiantes de una universidad privada ubicada en el estado de São Paulo-SP, Brasil, para un evento titulado "Semana de Estudio", celebrado en octubre de 2013. El diferencial esta actividad práctica aplica el taller es el enfoque interdisciplinario, que busca replicabilidade en el aula, ya que los estudiantes de educación superior pueden transmitir los conceptos y prácticas desarrolladas por los diferentes niveles educativos de manera multi o interdisciplinaria. La práctica sugiere mejorar la educación ambiental a través interdisciplinario mediante la reutilización de vidrio y / o plástico ollas para crear un sistema en el que se pueden observar: los ecosistemas, el ciclo hidrológico, el desarrollo de los seres vivos él y el equilibrio perfecto esta introducido sin la acción los seres humanos, que simulan un equilibrio planeta Mini.

  7. DESAFÍOS EN EL ESTABLECIMIENTO DE UNA CULTURA DE LA CALIDAD EN LA EDUCACIÓN SUPERIOR

    Directory of Open Access Journals (Sweden)

    Lizette de la Concepción Pérez Martínez

    2014-04-01

    Full Text Available Las estrategias de acreditación en las Universidades, propenden y a la vez se sustentan en el desarrollo de la cultura de la calidad en la comunidad universitaria que comprendan los diferentes procesos formativos y de aseguramiento institucional, en aras de lograr la pertinencia en la formación integral de los egresados, como profesionales y ciudadanos competentes para desempeñarse en su entorno social, de manera que la acreditación se constituye en el proceso legítimo en el devenir universitario en aras de alcanzar la pertinencia e impacto social de sus resultados. Es así que la acreditación universitaria se proyecta hoy, como un sistema que dinamiza el quehacer universitario, para lo cual se requiere que la comunidad universitaria en su conjunto, alcance una integridad, pertinencia y en general calidad, que la hacen merecedora de la confianza y credibilidad ante la sociedad. En síntesis, acreditar significa ganar confianza de la sociedad y en la propia comunidad universitaria.PALABRAS CLAVES: Calidad, Acreditación, Gestión de la calidadCHALLENGES IN THE ESTABLISHMENT OF A CULTURE OF THE QUALITY IN HIGHER EDUCATIONABSTRACTThe strategies of accreditation in the universities, tended and at the same time are based on the development of the culture of quality in the academic community to understand the different training processes and institutional assurance, for the sake of achieving the relevance in the integral formation of the graduates, as competent professionals and citizens to serve in their social environment, so that the accreditation is the legitimate process in the future university in order to achieve the relevance and social impact of their results. It is so the university accreditation is projected today, how a system that invigorates the chore university, for which it is needed that the university community in its set, reaches an integrity, relevancy and in general quality, which they make her deserving of the confidence

  8. Los determinantes institucionales de las patentes del Consejo Superior de Investigaciones Científicas: una aproximación histórica y una dialéctica con la Economía

    Directory of Open Access Journals (Sweden)

    Azagra Caro, Joaquín M.

    2009-06-01

    Full Text Available To date, normative studies on the generation of public patents have focused on universities. This paper extends the analysis to public research organisations (PRO. From both a historic and economic standpoint, and via the interpretation of three institutional factors (the change in the political and legal background, the dominance of certain areas of science over others, and the increase in technological cooperation, the reasons moving the Consejo Superior de Investigaciones Científicas (CSIC; the Spanish Research Council to file patents were examined. The impact of these quantified factors on patenting was examined from 1987 to the present. The institutional framework of bodies such as the CSIC was found to favour a patenting culture. The historical approach adopted defined homogeneous analytical periods and guided the interpretation of the results and their effects over time, while the economic approach allowed some of the relationships seen to be quantified and questioned the validity of merely descriptive classifications (e.g., scientific areas according to number of patents.

    Hasta la fecha los estudios normativos sobre el origen de patentes públicas han estado centrados en las patentes universitarias. Con este artículo extendemos el análisis a las patentes generadas en los organismos públicos de investigación (OPI. Desde una doble perspectiva, la histórica y la económica, y a través de la interpretación de tres factores institucionales (evolución de los cambios políticos y legales, primacía de unas áreas científicas sobre otras y aumento de la cooperación tecnológica se analiza qué lleva al Consejo Superior de Investigaciones Científicas (CSIC a patentar. Para el último período, desde 1987, hemos cuantificado el impacto de estos factores en las patentes. Hemos concluido que el marco institucional resulta eficaz en un organismo como el CSIC para crear una cultura favorable a la patente. La aproximación hist

  9. La construcción de una bóveda de crucería en la Escuela Técnica Superior de Arquitectura de Madrid

    Directory of Open Access Journals (Sweden)

    Martín, R.

    2009-09-01

    Full Text Available The Department of Construction in the Escuela Superior de Arquitectura de Madrid carried out a pedagogical experience of great interest. In the framework of a new discipline (Workshop on Gothic Art of Construction, the students built a ribbed vault. Gothic vaults are studied from several points of view, but the knowledge acquired in all these fields is never confronted with real practice. The aim of this pedagogical experience was to invert the terms, that is to rediscover and instil meaning into the theory through the physical experience of the construction. Along the process, the students were made conscious of the following aspects inherent to this type of construction: first of all, we planed to acquire historical knowledge of the object and its author; second, we took up its geometric study and the discovery of its spherical shape, and, third, we carried out the design of its life-size geometric lay out. In the next stage, we proceeded to carve the different parts of the vault, to pass on to build the centering which, once finished, enabled us to tackle the assembly of the vault. Finally, we removed the timber framework of the vault. This article deals with this whole process. The students who carried out the experiment of building a real vault can attest how to upgrade theoretical knowledge through actual experience is the best way to learn.En la Escuela Superior de Arquitectura de Madrid, el Departamento de Construcción ha puesto en marcha una experiencia pedagógica de extraordinario interés. En el marco de una nueva asignatura llamada Taller de Construcción Gótica, los alumnos han podido llevar a cabo la construcción de una bóveda de crucería. Las bóvedas “góticas” son objeto de estudio desde distintos puntos de vista, sin embargo, los conocimientos adquiridos en estas áreas jamás se confrontan con la práctica real. Esta experiencia pedagógica propone invertir los términos, es decir, redescubrir y dar un sentido a la

  10. RANKINGS EN LA EDUCACIÓN SUPERIOR BRASILEÑA: UNA APROXIMACIÓN A LOS RANKINGS PÚBLICOS Y PRIVADOS

    Directory of Open Access Journals (Sweden)

    Adolfo Ignacio Calderón

    2015-11-01

    Full Text Available RESUMEN: En el presente artículo, realizamos una aproximación teórica a los rankings académicos, públicos y privados, de la educación superior brasileña, con la tentativa de comprender su complejidad y su trayectoria. Defendemos que los cambios derivados de la transformación del Estado proveedor para un modelo de Estado evaluador reforzaron las tendencias en torno a las calificaciones por medio de rankings, y constatamos la insipiencia de los rankings estatales y privados frente a la existencia de un mercado en el cual acaban ganando legitimidad. ABSTRACT: This article provides a theoretical approach to public and private higher education academic rankings in Brazil aimed towards understanding their complexity and course of development. The paper supports that the changes stemming from the transformation from a Provider State into an Evaluator State model strengthened the trends around assessments through rankings, and it also confirms the incipience of private and state rankings faced with a market scenario where they are ultimately legitimized.

  11. El Espacio Europeo de Educación Superior: documentos para una (o varias teorías de la educación

    Directory of Open Access Journals (Sweden)

    Florentino SANZ FERNÁNDEZ

    2009-11-01

    Full Text Available RESUMEN: La abundancia de documentos sobre el Espacio Europeo de Educación Superior (EEES puede conducirnos paradójicamente, si no estamos atentos, a un no-espacio, donde los documentos e informes disponibles pueden ser considerados como indicadores de conductas a poner en práctica colectivamente, en lugar de convertirse en elementos de reflexión dialógica que conduzca a la elaboración de teoría pedagógica.El presente artículo, después de hacer una invitación a descubrir el trasfondo teórico que subyace en los distintos documentos, hace una presentación de los numerosos documentos existentes sobre el EEES. Para su mayor comprensión los sitúa en el marco amplio de los distintos organismos internacionales interesados en las reformas de la enseñanza superior: organismos internacionales, intergubernamentales y gubernamentales, para terminar con los documentos de mayor interés que, sobre la educación superior, se han producido en España.ABSTRACT:Paradoxically, the abundance of documents on the European Higher Education Area (EHEA could lead us, unless we are careful, to a non-area, in which the available documents and reports are regarded as merely indicative of the processes to be collectively implemented, instead of becoming elements in a thoughtful dialogue conducive to the development of pedagogic theory.This article, after encouraging reflection on the theoretical principles underlying the various documents, presents the numerous documents on the EHEA which are available. To make them more fully comprehensible they are situated in the wider framework of the various international bodies involved in the reforms of higher education: international bodies, intergovernmental and governmental, concluding with the most interesting documents on higher education which have been produced in Spain.SOMMAIRE: L'abondance de documents sur l'Espace Européen de l'Enseignement Supérieur (EEES peut nous conduire, paradoxalement et si nous ne

  12. Filtros de vena cava en pacientes con cáncer Vena cava filters in cancer patients

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    Fernando A. Díaz Couselo

    2012-08-01

    Full Text Available Los pacientes con tromboembolismo venoso (TEV y cáncer tienen más complicaciones vinculadas al tratamiento anticoagulante que la población general. Los filtros de vena cava constituyen una herramienta útil para el tratamiento del TEV y su utilización es controvertida en estadios avanzados de la enfermedad. En este trabajo se revisaron las indicaciones, complicaciones y frecuencia de retiro de los filtros de vena cava en una población de pacientes oncológicos con TEV. Se analizaron 27 pacientes a quienes se les había colocado filtros de vena cava. Veinticinco tenían tumores sólidos y dos linfomas no Hodgkin. Veinticinco estaban bajo tratamiento activo (cirugía y/o quimioterapia. Diecinueve se hallaban en estadio IV de su enfermedad. El motivo de su indicación fue profilaxis en el período perioperatorio en 14 casos (51.9%, hemorragia (n = 5, trombocitopenia (n = 4, metástasis en sistema nervioso central (n = 2, accidente cerebrovascular (n = 1 y neurocirugía previa no reciente (n = 1. Se retiraron 8 (29.6% filtros. La mediana del tiempo de permanencia fue 21 días (6-75. No hubo diferencias estadísticamente significativas en la frecuencia de retiro entre los filtros colocados en el perioperatorio (6/14 y los colocados por otras contraindicaciones para la anticoagulación (2/13; p = 0.2087. No hubo fracasos ni complicaciones en los procedimientos de colocación y retiro.Cancer patients with venous thromboembolism (VTE have more complications related to the anticoagulation treatment than the general population. Vena cava filters are a useful tool in cancer patients, but their use in advanced disease is controversial. In this paper, we reviewed the indications, complications and frequency of retrieval of vena cava filters in cancer patients with VTE. Twenty seven patients with vena cava filter placements were analyzed. Twenty five had solid tumors and two non Hodgkin lymphomas. Twenty five were under active treatment (surgery and

  13. El lado oscuro de los CIEES: Una crítica a los Comités Interinstitucionales para la Evaluación de la Educación Superior

    OpenAIRE

    Hugo Aboites

    2003-01-01

    Los Comités Interinstitucionales para la Evaluación de la Educación Superior (CIEES) fueron presentados en México en 1992 como un instrumento de evaluación entre pares, orientado a generar una dinámica de constante mejoramiento en la educación superior mexicana. A diez años de existencia, sin embargo, y como lo ejemplifica el caso del Comité de Ciencias Agropecuarias, se han vuelto evidentes los problemas estructurales del proyecto y éstos cuestionan de fondo su validez para el...

  14. Prevalencia de desordenes musculo-esqueléticos y su asociación con factores ergonómicos en trabajadores administrativos de una institución educativa de nivel superior 2015

    OpenAIRE

    Leguizamo Brand, Monica; Ramos Castañeda, Jorge Andrés

    2015-01-01

    Objetivo. Establecer la prevalencia de Desordenes Musculo Esqueléticos(DME) y su asociación con factores ergonómicos (postura, manipulación de carga y trabajo repetitivo) en trabajadores administrativos de una Institución Educativa de Nivel Superior (IENS). Métodos. Se realizó un estudio descriptivo de corte transversal a 146 trabajadores de una IENS de la ciudad de Neiva (Huila), entre Abril y Mayo de 2015. Para la recolección de la información se utilizaron dos instrumentos: un instrum...

  15. Evolución conceptual de los modelos de medición de la percepción de calidad del servicio: una mirada desde la educación superior

    Directory of Open Access Journals (Sweden)

    Edison Jair Duque Oliva

    2014-12-01

    Full Text Available Through a review of the concepts related to service and most recognized models for evaluating the perception of service quality, a theoretical evolution of these models is developed, with emphasis on their application in higher education and the importance of its measurement in institutions of higher education. A través de una revisión de los conceptos asociados al servicio y a los modelos más reconocidos para evaluar la percepción de calidad del servicio, se desarrolla una evolución teórica de los mismos, haciendo énfasis en su aplicación en la educación superior y la importancia de su medición en las instituciones de educación superior.

  16. Complete atrioventricular block in an adult with congenitally corrected transposition of the great arteries with interrupted inferior vena cava

    Directory of Open Access Journals (Sweden)

    Namsik Yoon

    2012-01-01

    Full Text Available A 56-year-old man got admitted as he was suffering from dizziness for 3 days. Electrocardiogram (ECG showed complete atrioventricular (AV block with ventricular rhythm of 35/min. We found that he had no inferior vena cava (IVC which drained into right atrium in the middle of temporary pacing lead insertion. Venous drainage into superior vena cava from dilated azygos vein was identified after venogram. Echocardiogram revealed a congenitally corrected transposition of the great arteries (CCTGA. Chest computed tomography (CT angiogram revealed AV and ventriculoarterial discordance with reversed ventricles and interrupted IVC with azygos continuation. DDD pacemaker was implanted via left axillary vein without any problem.

  17. Valores profesionales de enfermería: Una mirada hacia la formación en la Educación Superior Nursing professional values in Higher Education

    Directory of Open Access Journals (Sweden)

    Martha Díaz Flores

    2012-08-01

    Full Text Available Los valores profesionales se definen como valores humanos contextualizados y orientados a la profesión, aúnan en sus significados la relación entre los requerimientos sociales y los de la profesión, constituyen la identidad profesional por ser guía en el comportamiento en el ámbito laboral. Dentro de la Educación Superior se ha retomado la inclusión de valores en la formación, y junto a los conocimientos y habilidades, conforman la llamada formación integral. El objetivo de esta investigación fue determinar los valores profesionales en estudiantes de licenciatura en enfermería de la Universidad Autónoma del Estado de México. Material y Métodos: con un enfoque cuantitativo, se realizó un estudio transversal, exploratorio y descriptivo, a través de una encuesta basada en los valores propuestos por la American Association of Colleges of Nursing, y a partir de escalas Liker, se determinaron valores profesionales dirigidos hacia pacientes, la familia de los pacientes y el equipo médico. Resultados: se obtuvo el siguiente sistema de valores: dignidad humana, igualdad, verdad, libertad, justicia, altruismo y estética. Se observa que la mayoría de los valores se consideraron indispensables hacia el paciente, manifestando menores porcentajes hacia la familia del paciente y equipo médico sobre todo en los valores de estética, altruismo y libertad.Professional values are defined as human values contextualized and oriented to the profession, join in their meanings the relationship between social requirements and of the profession, are the professional identity as guide behavior in the workplace. The inclusion of values in the training has taken up within higher education, and along with knowledge and skills, make up the so-called comprehensive training. The objective of this research was to appreciate the professional values in students of degree in nursing from the Autonomous University of the State of Mexico. Material and methods

  18. Scirrotherium antelucanus,una nueva especie de Pampatheriidae (Mammalia, Xenarthra, Cingulata del Mioceno Superior de Costa Rica, América Central

    Directory of Open Access Journals (Sweden)

    César A Laurito

    2013-12-01

    Full Text Available Se registra por primera vez el género Scirrotherium y se describe una nueva especie para el Hemphilliano temprano de Costa Rica. Este hallazgo constituye una nueva evidencia sobre el arribo temprano de los heraldos sudamericanos a América Central durante el Pre-Gran Intercambio Biótico Americano, incrementando en al menos 3 Ma el registro de la familia Pampatheriidae en el Hemisferio Norte. La nueva especie de América Central difiere de las especies suramericanas de Scirrotherium por tener osteodermos con una ornamentación inconspicua, figura central simple y una muy amplia área superficial.

  19. Collagen spatial distribution in rapid atrial pacing dogs with or without superior vena cava and aortic root fat pad%快速右心房起搏对实验犬心房胶原纤维分布的影响

    Institute of Scientific and Technical Information of China (English)

    熊日新; 钟国强; 宋红星; 张景昌; 凌云

    2010-01-01

    Objective To observe the collagen spatial distribution,collagen volume fraction (CVF)and Cx40,Cx43mRNA expressions in rapid atrial pacing dogs post vagal denervation by removing fat pad located between the medial superior vena cava and aortic root(SVC-Ao fat pad).Methods Twentyfour dogs were randomly divided into unpaced sham operation group(S group,n=8),Keeping SVC-Ao fat.Pad group(K group,n=8)and Removing SVC-Ao fat pad group(R group,SVC-Ao fat pad was removed by surgical excision before pacing,n=8).K and R groups were paced for six weeks.Six weeks later,all dogs were sacrificed,left atrium(LA),right atrium(RA),left atrial appendage(LAA),right atrial appendage(RAA)and atrial septum(AS)were collected and stained with HE or Masson Trichrome or frozen in liquid nitrogen for quantifying the expression of Cx40,Cx43 mRNA by Real-time quantitative Reverse Transcription Polymerase Chain Reaction(RT-PCR).Results Spatial distribution of collagen fibers as well as CVF between S and R group were similar(all P>0.05).CVF was significantly higher in K group colnpared to R group,especially at LAA and AS locations(all P<0.05),Cx40mRNA expression in K group was significantly decreased in LA,RA,and significantly increased in LAA,RAA and AS compared those in S group(all P<0.05),significantly lower in LA and RA while significantly higher in LAA and RAA compared to R group(all P<0.05).Cx43mRNA expression in K group was significantly reduced in LA,RA,LAA and RAA while significantly increased in AS compared to S group(all P<0.05),significantly higher in LA,RA,RAA and AS while significantly lower in LAA compared to R group.Conclusion Pacing induced collagen remodeling and modulation on Cx40mRNA and Cx43 mRNA expressions could be partially attenuated by removing SVC-Ao fat pad suggesting vagal nervation plays a key role in the initiation and preservation of atrial fibrillation.%目的 实验探讨切除上腔静脉中部和主动脉根部脂肪垫(简称脂肪垫)对快速右

  20. 犬急性肺动脉高压模型上腔静脉多普勒血流速度频谱变化规律研究%Study of superior vena cava Doppler flow velocity spectrum in the canine model of acute pulmonary hypertension

    Institute of Scientific and Technical Information of China (English)

    孙丹丹; 段云友; 陈洪茂; 袁丽君; 梁宁南; 尚福军; 侯娜

    2011-01-01

    Objective To explore the relationship between the pulmonary artery pressure and the changes of spectrum of superior vena cava( SVC )blood flow in the canine model of acute thromboembolic pulmonary hypertension ( ATEPH ). Methods A canine model of ATEPH was developed by infusing thrombus into the femoral vein. The pulmonary arterial pressure was simultaneously measured via the right heart catheter. The maximum systolic peak flow velocity( S ), diastolic peak flow velocityC D ), atrial reverse peak flow velocityC AR ), and ventricular reverse peak flow velocity( VR )of the SVC were measured by Doppler echocardiography in the right supraclavicular fossa view. Paired samples f-test was used to compare the parameters before and after ATEPH. Simple linear regression was used to analyze the relations of the Doppler spectral indexes with the PASP. Results The models were successfully established in 24 dogs with the peak value of pulmonary arterial systolic pressure ( PASP ) greater than 30 mm Hg. Compared with the pre-embolization: S significantly decreased in the moderate and severe pulmonary hypertension group [( 15. 37 ± 8.08 ),( 14.72 ±7.42 ),( 19.92 ±7.27 )cm/s,f =2. 055,2.265,aU P <0.05 ],AR was significantly higher in the moderate and severe hypertension group[ ( 14. 08 ± 5.30),(21.84±6.56),(l0.05±2.8l)cm/s,f = -3.155, -8. 892,all P <0.05 ], VR was significantly higher in the severe pulmonary hypertension group[ ( 13. 03 ± 6.67),(8.87±2. 88)cm/s,f = -2. 101,P<0. 05 ]. The ratios of AR/S and VR/S increased significantly with the increase of PASP, and was positively correlated with PASP( r = 0.693,0.646, all P < 0. 01 ). Conclusion The ratios of AR/S and VR/S have good correlations with the pulmonary artery systolic pressure, and may provide good indexes for the assessment of pulmonary artery pressure.%目的 探索犬血栓栓塞性肺动脉高压模型上腔静脉血流频谱的变化规律及意义.方法 通过股静脉注入血栓栓子建立犬血栓栓

  1. Hacia una concepción de gestión de la cultura tributaria en las instituciones de educación superior colombianas: un estudio de caso

    OpenAIRE

    2014-01-01

    Este artículo sobre la gestión de la cultura tributaria tiene como fin esencial identificar las diferentes formas, estrategias, técnicas y métodos que existen como mecanismos de evasión en las empresas del sector de educación superior colombianas, para combatirlas en términos de promover una cultura de la legalidad; asimismo, apropiar una gramática básica que este en relación con la gestión de la cultura tributaria y la evasión. Este es el resultado de una investigación exploratoria, en tanto...

  2. Traumatismos de veia cava inferior

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    Cleinaldo de Almeida Costa

    Full Text Available OBJETIVO: Avaliar a incidência, o perfil clínico e as estratégias operatórias dos ferimentos de Veia Cava Inferior (VCI. MÉTODOS: Foram analisados retrospectivamente os prontuários de 76 doentes com ferimento de VCI atendidos nos dois prontossocorros de Manaus, no período de janeiro de 1997 a julho de 2002. Mecanismo de lesão, mortalidade, estado hemodinâmico, índice de trauma abdominal penetrante (PATI, achados intra-operatórios e conduta cirúrgica foram estudados. RESULTADOS: Quarenta e nove (65% doentes sofreram lesão por arma branca, 26 (34% por arma de fogo e um por traumatismo abdominal fechado. Quarenta e um (54% doentes sobreviveram. Quase todos chegaram acordados, entretanto 40% estavam hipotensos (pressão arterial sistólica < 70mmHg. O índice de trauma abdominal penetrante (PATI médio foi maior que 40. À laparotomia, todos demonstraram sangramento retroperitoneal ativo ou hematoma retroperitoneal em expansão. Vinte e um pacientes possuíam lesão de VCI retro-hepática, enquanto nos outros 55 a lesão era infra-hepática. O reparo operatório predominante foi a venorrafia lateral em 65 doentes. Houve necessidade de tóraco-freno-laparotomia em quatro doentes do total de oito doentes que foram à toracotomia direita por lesão retro-hepática. Foram realizados shunts átrio-cavais em seis doentes, dos quais três sobreviveram. CONCLUSÕES: O ferimento de VCI é uma lesão de alta letalidade e possui uma relação intrínseca com a violência urbana. A sobrevivência depende de uma imediata e vigorosa reposição de volume, um manejo operatório adequado e todo esforço em evitar-se hipotermia.

  3. La inclusión en la educación superior como tema de la agenda de gobierno en América Latina. Una reflexión sobre las propuestas del CRES/2008

    Directory of Open Access Journals (Sweden)

    Adriana Chiroleu

    2009-01-01

    Full Text Available En la última década, la agenda de gobierno de los países de América Latina ha incorporado la temática de la inclusión en la educación superior, dando lugar, en algunos de ellos, a la formulación de políticas públicas de diverso tenor. Este texto se propone abordar este tema desde una triple perspectiva: conceptual, examinando los alcances de dos conceptos fuertemente relacionados con esta problemática, como son los de democratización e inclusión en el nivel superior; contextual, explorando desde un plano descriptivo la situación particular de América Latina en lo relativo a la cobertura de la educación superior y la conveniencia de su ampliación, y propositiva, analizando las recomendaciones que se incluyen en la Declaraciónfinal de la Conferencia Regional de Educación Superior de Cartagena (CRES/2008. El trabajo reconoce los avances que la incorporación a la agenda regional de esta temática procura alertar sobre algunas cuestiones operativas que pueden dificultar su aplicación en las diversas realidades nacionales. La inclusión en la educación superior ha ingresado en la última década a la agenda de gobierno de los paísesde América Latina, dando lugar, en algunos de ellos, a la formulación de políticas públicas de diverso tenor que procuran atender/contener la problemática. Diversas son las razones que justifican un tratamiento preferencial de esta temática, la cual se inscribe en un clima de época de mayor reconocimiento de la diversidad. Por una parte, América Latina es la región más desigual del planeta, por lo que parece conveniente utilizar las potencialidades de la educación superior como herramienta para introducir una cierta movilidad en la sociedad y favorecer además la integración en la diversidad, la solidaridad y la cohesión social. Por otra parte, algunas investigaciones señalan que la elevada desigualdad incide en la reducción del crecimiento por lo que -desde una perspectiva

  4. La memoria de actividad como fuente de información bibliométrica en el estudio de una Escuela Politécnica Superior

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    Moros, Ángel

    2003-06-01

    Full Text Available Scientific activity of a Polytechnic University is analysed during three academic courses: 1998-99, 1999-2000 y 2000-01 by means of the university annual reports. Two different types of data are considered: a research input data, including personnel and type of research projects conducted; and b research output data, such as the number of articles, monographs, collective works, patents and dissertations for thesis and master degree. Inter-departmental differences in types of activity lead to differences in the type of documental product that predominates, type of financial source and in the national/international nature of the publications. Articles, which constitute 13-76% of the documental products of the departments, are a better indicator of activity for the basic departments than for the applied ones, since collective works predominate in the latter. Only 46% of the articles of the polytechnic university were published in journals covered by the Institute for Scientific Information (ISI. Usefulness of bibliometric studies based only on ISI journals is limited, especially for the most applied departments. Studies based on annual reports provide a more comprehensive overview of the activity of the departments.

    Se analiza la actividad científica de una Escuela Politécnica Superior durante tres cursos académicos: 1998-99, 1999-2000 y 2000-01 a través de las memorias de su universidad. Se recogen dos tipos de datos: a datos de inversiones en investigación, como son los relativos al número de profesores y número y tipo de ayudas económicas; y b datos de resultados, en los que se incluye el número de artículos, libros, obras colectivas, patentes y proyectos fin de carrera. El distinto tipo de actividad desarrollado por los diferentes departamentos se manifiesta en el tipo de resultado predominante, en las fuentes de financiación preferentes y en el carácter nacional/internacional de sus publicaciones. Los artículos, que

  5. Análisis del valor agregado del conocimiento. Caso aplicado en una institución de educación superior

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    PAULA ANDREA MOLINA PARRA

    2010-01-01

    Full Text Available Este artículo trata el tema del capital intelectual de una organización, el cual es un concepto pocas veces analizado por las empresas, presentando una herramienta practica de valoración del mismo como lo es el Modelo Knowledge Value Added (KVA, del cual se presenta una amplia concepción teórica. Se muestra un caso de estudio aplicado a una empresa del sector educativo colombiano de cómo aplicar dicha metodología para la valoración del capital intelectual y finalmente, a partir de los resultados encontrados en el caso de estudio, se proponen algunas de las políticas estratégicas que se deberían tener en cuenta a futuro para organizar, equilibrar y optimizar la estructura actual de la empresa donde se realizo la aplicación del modelo.

  6. Portafolios electrónicos universitarios para una nueva metodología de enseñanza superior. Desarrollo de un material educativo multimedia (MEM)

    OpenAIRE

    Aguaded Gómez, José Ignacio; López Meneses, Eloy; Jaén Martínez, Alicia

    2013-01-01

    En el nuevo contexto europeo universitario es necesario un cambio metodológico y evaluador orientado a perspectivas didácticas activas, socioconstructivas e investigadoras centradas en el estudiante. La presente investigación describe el escenario de aprendizaje, los resultados y las conclusiones de una práctica innovadora universitaria realizada con estudiantes de primer curso de dos titulaciones diferentes que se imparten en una universidad andaluza, con la utilización de portaf...

  7. Creating a Fontan fenestration in a child with dextrocardia and interrupted inferior vena cava

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    Pradeepkumar Charlagorla

    2016-01-01

    Full Text Available Plastic bronchitis is a rare life-threatening complication of the Fontan operation. Transcatheter Fontan fenestration can ameliorate symptoms by decompressing elevated venous pressures. Transcatheter creation of a fenestration can be technically challenging in cases with complex venous anatomy. We report a case of a 5-year-old boy with heterotaxy, dextrocardia with unbalanced atrioventricular canal (AVC, atrial and visceral situs inversus, left-sided superior vena cava (SVC, and left-sided interrupted inferior vena cava (IVC with azygos continuation. With few modifications to the equipment, a successful Fontan fenestration with stent implantation was performed via transjugular approach. At 2-year follow-up, his symptoms of plastic bronchitis improved significantly.

  8. SOBRE EL MARCO NORMATIVO PARA FORMULAR UNA PROPUESTA DE POLÍTICAS PÚBLICAS PARA LA FORMACIÓN POR CICLOS Y LA EVALUACIÓN POR COMPETENCIAS EN LA EDUCACIÓN SUPERIOR COLOMBIANA

    Directory of Open Access Journals (Sweden)

    Elvia Maria González

    2008-11-01

    Full Text Available En este artículo, producto de la investigación 'Identificación de competencias orientadas a la formación por ciclos en Ingeniería Sanitaria, Mecánica, Electrónica e Industrial de la Facultad de Ingeniería de la Universidad de Antioquia', se describe el marco normativo sobre el sistema de ciclos y competencias en la educación superior en el país y se realiza una propuesta en torno a las políticas publicas que deben orientarla, pretendiendo, desde un enfoque hermenéutico, hacer un aporte fundamental desde el punto de vista de las políticas y las normas que tienen que ver con la materia en nuestro sistema jurídico y un punto de partida básico para la implementación de una formación por ciclos y una evaluación por competencias en la educación superior colombiana.

  9. Equidade e iniquidade no ensino superior: uma reflexão Equidad e iniquidad en la Educación Superior: una reflexión Equity and inequity in Higher Education: a reflection

    OpenAIRE

    Vera Lucia Felicetti; Marília Costa Morosini

    2009-01-01

    O artigo aborda a questão da equidade no Ensino Superior sob três focos: equidade de acesso, de participação e de resultados. Reflete e questiona o que é equidade nesse nível de ensino. O referencial teórico considera os estudos apresentados na Organization for Economic Co-Operation and Development (OECD) 2008 e outros. Apresenta um comparativo estatístico entre as últimas médias dos alunos aprovados no vestibular de uma IES pública, em 2008, e o argumento último dos aprovados no vestibular d...

  10. LA FISCALIZACIÓN SUPERIOR A NIVEL SUBNACIONAL EN MÉXICO. UNA EVALUACIÓN DEL DESEMPEÑO DE LAS ENTIDADES DE FISCALIZACIÓN SUPERIOR (EFS) LOCALES

    OpenAIRE

    Anahí Gutiérrez Luna

    2015-01-01

    Actualmente, las Entidades de Fiscalización Superior (EFS) locales en México presentan diferencias importantes no sólo en su diseño institucional y en su evolución estructural, sino en el desempeño de sus capacidades, cobertura y efectividad. Por ello, el objetivo principal de este texto es explicar los factores que determinan las diferencias en el desempeño de las EFS a nivel subnacional. Se parte de la hipótesis de que esas diferencias se explican a partir de factores externos e internos a ...

  11. Reconocimiento de títulos y educación superior pública. A propósito de una propuesta del parlamento centroamericano

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    Muñoz Varela, Luis

    2007-12-01

    Full Text Available Resumen: Se realiza en este artículo un análisis en tres dimensiones, en torno al proyecto: Protocolo al Convenio sobre el Ejercicio de las Profesiones Universitarias y Reconocimiento de Estudios Universitarios, aprobado por el Parlamento Centroamericano en enero de 2005. La primera dimensión ubica elementos que permiten caracterizar el proyecto de la integración regional centroamericana, definido en la Alianza para el Desarrollo Sostenible (ALIDES. La segunda dimensión hace referencia a las orientaciones fundamentales en las que se basa la sustentación esencial de la institucionalidad y del proyecto académico de la educación superior pública de Centroamérica. Finalmente, la tercera dimensión ubica el proyecto del PARLACEN en los lineamientos que para el fortalecimiento de la educación superior pública de Centroamérica, establecen las políticas, programas y proyectos del Consejo Superior Universitario Centroamericano (CSUCA.Abstract: This article contains the analysis of three dimensions towards the Project: Protocol to the Agreement about the Practice of the University Professions and the Recognition of University Studies which is approved by the Central American Parliament (January, 2005. The first dimension situates elements that permit the project to be characterized in the Central American regional integration, defined in the Alliance of the Sustainable Development (ALIDES. The second dimension refers to the fundamental orientations in which the base is the essential livelihood of institutions and of the academic dimension of the public and superior education in Central America. Finally, the third dimension situates the PARLACEN project in regulations that permits the fortifying of the public and superior education in Central America which establishes the policies, programs, and projects of Council of Superior University in Central America (CSUCA.

  12. USO DE UN MEDIO TECNOLÓGICO EDUCATIVO EN EDUCACIÓN SUPERIOR COMO RECURSO DIDÁCTICO: REPORTE DE UNA EXPERIENCIA EN ODONTOLOGÍA

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    Orlando Maroto Marín

    2010-01-01

    Full Text Available La elaboración de una herramienta tecnológica necesita una detallada investigación previa donde se determinan los problemas educativos que justifican su utilización; además, se analizan otros aspectos como los concernientes a las características de la población meta a la cual va dirigida; al respecto, las Tecnologías de la Información y de la Comunicación (TICs han venido propiciando cambios en torno a la educación y a los sistemas de aprendizaje; sus alcances están siendo apreciados cada día más en los distintos centros de enseñanza a todo nivel. Por lo tanto, en este artículo se expone la experiencia de la elaboración y la validación de una herramienta tecnológica para el curso Restaurativa II en la Facultad de Odontología de la Universidad de Costa Rica (UCR; la utilización de la herramienta se propone como una ayuda para el aprendizaje del diseño de Prótesis Parcial removible que necesita de una buena preparación como base para obtener éxito en el tratamiento dental. Dicha experiencia fue bien acogida tanto por los estudiantes entrevistados como por los docentes.

  13. Por una educación superior política e histórica: el regreso de la ciudadanía

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    José Beltrán Llavado

    2015-01-01

    Full Text Available El objetivo principal de esta contribución es fundamentar la idea de que la universidad del siglo XXI ha de buscar su propia redefinición en una tarea que pasa por preservar y recrear una de sus funciones principales: la construcción de ciudadanía. A efectos metodológicos, el texto se estruc - tura en una serie de apartados: en primer lugar se prestará atención a la institución universitaria del presente como parte de un proyecto de matriz histórica. A continuación se presentan tres vectores para un programa de acción basado en la repolitización de la universidad. Estos vectores corresponden a políticas educativas para la renovación de la institución universitaria con miras a la construcción de una nueva ciudadanía: políticas de aprendizaje permanente, de convergencia y de ciudadanía. Finalmente, se añadirán, a modo de orientaciones, algunos marcos conceptuales a tener en cuenta para llevar a cabo este programa de acción en pos de una universidad histórica y política.

  14. Desarrollo de habilidades metacognitivas para el aprendizaje de las matemáticas a través de una didáctica basada en problemas y mediada por los juegos autóctonos y tradicionales, en estudiantes de grado quinto de básica primaria de la Escuela Normal Superior de Pasto, en el marco de una escuela inclusiva

    OpenAIRE

    Bolaños Bravo, Luis Efrain; Cabrera Casabón, Aydé del Rosario; Goyes Chamorro, Javier Alexander; Medina Galvis, Sandra Nelly; Rosero Getial, Omaira Janeth

    2014-01-01

    Tesis (Maestría en Educación desde la Diversidad). Universidad de Manizales. Facultad de Ciencias Sociales y Humanas, 2014 La presente investigación es un estudio de las habilidades metacognitivas que los estudiantes de grado quinto de básica primaria de la Escuela Normal Superior de Pasto requieren para resolver problemas matemáticos. Se propone una didáctica fundamentada en la estrategia didáctica Aprendizaje Basado en Problemas -ABP- como una alternativa para transferir los preconcept...

  15. Total laparoscopic retrieval of inferior vena cava filter

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    Ehsan Benrashid

    2015-08-01

    Full Text Available While there is some local variability in the use of inferior vena cava filters and there has been some evolution in the indications for filter placement over time, inferior vena cava filters remain a standard option for pulmonary embolism prophylaxis. Indications are clear in certain subpopulations of patients, particularly those with deep venous thrombosis and absolute contraindications to anticoagulation. There are, however, a variety of reported inferior vena cava filter complications in the short and long term, making retrieval of the filter desirable in most cases. Here, we present the case of a morbidly obese patient complaining of chronic abdominal pain after inferior vena cava filter placement and malposition of the filter with extensive protrusion outside the inferior vena cava. She underwent successful laparoscopic retrieval of her malpositioned inferior vena cava filters after failure of a conventional endovascular approach.

  16. Cultura organizacional y evaluación del desempeño del personal académico. Estudio de caso en una institución de educación superior pública mexicana

    OpenAIRE

    Irasema Linares Medina; Sergio Ochoa Jiménez; Beatriz Ochoa Silva

    2013-01-01

    La investigación tiene como objetivo realizar el diagnóstico de cultura organizacional de una Institución de Educación Superior Pública, para identificar los elementos culturales que facilitan o dificultan el proceso de evaluación del desempeño del personal académico. El estudio se realizó a través del diseño de un modelo de diagnóstico de la cultura organizacional compuesto por nueve variables: Perfil de la organización; Comunicación; Medio Ambiente para la Mejora del Desempeño; Normatividad...

  17. Praxis social del emprendimiento en instituciones de educación superior públicas y privadas de Medellín : una mirada desde el análisis crítico del discurso

    OpenAIRE

    Ararat Herrera, Jaime Andrés

    2010-01-01

    Con el objetivo de dilucidar ciertas posturas ideologías en el discurso administrativo del emprendimiento en las Instituciones de Educación Superior de la ciudad de Medellín. Este trabajo examina, mediante un enfoque cualitativo y una metodología de Análisis Crítico del Discurso (ACD), la “construcción” de los mismos, a través de las prácticas discursivas de los encargados de orientar su praxis social en las entidades analizadas. La información se recopiló a través de entrevistas semiestructu...

  18. SOBRE EL MARCO NORMATIVO PARA FORMULAR UNA PROPUESTA DE POLÍTICAS PÚBLICAS PARA LA FORMACIÓN POR CICLOS Y LA EVALUACIÓN POR COMPETENCIAS EN LA EDUCACIÓN SUPERIOR COLOMBIANA

    OpenAIRE

    Elvia Maria González; Sandra Patricia Duque Quintero

    2008-01-01

    En este artículo, producto de la investigación 'Identificación de competencias orientadas a la formación por ciclos en Ingeniería Sanitaria, Mecánica, Electrónica e Industrial de la Facultad de Ingeniería de la Universidad de Antioquia', se describe el marco normativo sobre el sistema de ciclos y competencias en la educación superior en el país y se realiza una propuesta en torno a las políticas publicas que deben orientarla, pretendiendo, desde un enfoque hermenéutico, hacer un aporte ...

  19. Una nueva especie del género Megapaloelodus (Aves: Phoenicopteridae: Palaelodinae) del Mioceno Superior del noroeste de Argentina A new species of the genus Megapaleolodus (Aves: Phoenicopteridae: Palaelodinae) from the Upper Miocene of Northwestern Argentina

    OpenAIRE

    Agnolin, Federico L

    2009-01-01

    En el presente artículo se describe una nueva especie del género Megapaloelodus. Esta nueva especie, nominada como M. peiranoi nov. sp. fue encontrada en capas aflorantes de la Formación Andalhualá (Mioceno superior), en la provincia de Catamarca, Argentina. La nueva especie difiere de otras previamente conocidas para el género Megapaloelodus y posee numerosos elementos óseos que fueron sólo sumariamente descriptos por autores previos. Las vértebras cervicales se distinguen de aquellas de los...

  20. Factores asociados al rendimiento académico en estudiantes universitarios, una reflexión desde la calidad de la educación superior pública

    OpenAIRE

    Guiselle María Garbanzo Vargas

    2007-01-01

    Este artículo presenta una revisión de los hallazgos de investigación consignados en la literatura que se señalan como posibles factores asociados al rendimiento académico en estudiantes universitarios, y su vinculación con la calidad de la educación superior pública en general, para lo que se apoya en estudios realizados en España, Colombia, Cuba, México y Costa Rica. Se agrupan en tres categorías: determinantes personales, determinantes sociales y determinantes institucionales que, a su vez...

  1. PERCEPCIÓN DE LOS ESTUDIANTES DE UNA EXPERIENCIA DE USO DIDÁCTICO DE BLOG DOCENTE EN EDUCACIÓN SUPERIOR

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    J. Pere Molina Alventosa

    2016-01-01

    Full Text Available En este trabajo se estudia la percepción de los estudiantes de una experien - cia en el uso didáctico de un blog docente durante cuatro cursos académicos en una asignatura universitaria. Los datos se recogieron a través de las con - testaciones de los estudiantes a un post del blog donde se les solicitaba que realizasen una valoración del mismo. A través de un análisis cualitativo se definieron cinco categorías: el blog como herramienta de innovación educati - va, el blog como recurso de organización flexible e hipertextual, el blog como entorno de aprendizaje participativo, el blog como agente de cambio del rol docente y propuestas de mejora. Los resultados ponen de manifiesto una opi - nión favorable del alumnado en cuanto al uso del blog, ya que lo consideran un recurso motivador que les permite ampliar y profundizar en los conteni - dos de la asignatura gracias a sus múltiples utilidades y a las posibilidades de interacción y comunicación que ofrece. La disponibilidad permanente del blog permite acercar la asignatura a los estudiantes y sus posibilidades parti - culares de aprendizaje, permitiendo también la comunicación tanto entre el profesor y el alumnado como entre estos últimos.

  2. Nulla aesthetica sine ethica: los retos de una nueva, solidaria y colaborativa formación artística superior.

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    Álvaro Zaldívar Gracia

    2015-07-01

    Full Text Available Este artículo se centra en la exigencia, propia del Espacio Europeo de la Educación Superior, de buscar nuevos perfiles profesionales acercando las a veces demasiado abstractas propuestas académicas a las necesidades sociales reales, sin olvidar la necesidad de buscar colaboraciones y mecenazgos privados que apoyen también a la enseñanza pública, y resaltando ante todo el imperativo de hacer que los jóvenes artistas, cuando salgan de nuestros centros superiores, además de excelentes en cuanto tales, tengan la amplia formación humana y esa profunda orientación solidaria que resulta imprescindible (nulla aesthetica sine ethica en un mundo como el actual, complejo e injusto, pero lleno de nuevas e ilusionantes posibilidades de mejora.

  3. El desarrollo de competencias y los factores innovadores integrados en la formación docente inicial: una experiencia en los Institutos Normales Superiores de Bolivia

    OpenAIRE

    2007-01-01

    El objetivo general de la tesis doctoral es determinar los aspectos que inciden en el desarrollo de las competencias docentes generales de los estudiantes de sexto semestre, en 12 Institutos Normales Superiores; y los objetivos específicos: (i) caracterizar las tendencias de los estudiantes en cuanto al logro de las competencias; (ii) identificar variables de los estudiantes que configuran los perfiles de las competencias formadas; (iii) describir las características de los docentes y del...

  4. Reconocimiento de títulos y educación superior pública. A propósito de una propuesta del parlamento centroamericano

    Directory of Open Access Journals (Sweden)

    Luis Muñoz Varela

    2007-01-01

    Full Text Available Se realiza en este artículo un análisis en tres dimensiones, en torno al proyecto: Protocolo al Convenio sobre el Ejercicio de las Profesiones Universitarias y Reconocimiento de Estudios Universitarios, aprobado por el Parlamento Centroamericano en enero de 2005. La primera dimensión ubica elementos que permiten caracterizar el proyecto de la integración regional centroamericana, definido en la Alianza para el Desarrollo Sostenible (ALIDES. La segunda dimensión hace referencia a las orientaciones fundamentales en las que se basa la sustentación esencial de la institucionalidad y del proyecto académico de la educación superior pública de Centroamérica. Finalmente, la tercera dimensión ubica el proyecto del PARLACEN en los lineamientos que para el fortalecimiento de la educación superior pública de Centroamérica, establecen las políticas, programas y proyectos del Consejo Superior Universitario Centroamericano (CSUCA.

  5. EL USO DE LAS PRESENTACIONES DIGITALES EN LA EDUCACIÓN SUPERIOR: UNA REFLEXIÓN SOBRE LA PRÁCTICA

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    Orlando Maroto Marín

    2008-01-01

    Full Text Available El uso de las presentaciones digitales en la enseñanza universitaria se han extendido ampliamente. En esta reseña temática se realiza una reflexión sobre la pertinencia de su aplicación; además se revisan algunos detalles de su producción. Se recalca la importancia de tomar en cuenta los detalles de las presentaciones para así lograr los objetivos educativos. El uso de un medio audiovisual y digital debería favorecer el establecimiento de una comunicación interactiva entre docentes y estudiantes. Con estas notas se espera aportar ideas sobre las presentaciones digitales especialmente para el personal docente que inicia sus labores dentro de la universidad.

  6. Caballos y ciervos : Una aproximación a la evolución climática y económica del Paleolítico superior en el Mediterráneo peninsular

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    Xavier Esteve

    2005-01-01

    Full Text Available Caballos y ciervos son las principales presas de caza mayor en los yacimientos del Paleolítico superior en la cuenca mediterranea de la Península Ibérica. Sólo las cabras monteses pueden llegar a tener mayor importancia en yacimientos situados en áreas abruptas o montañosas. A pesar de los pocos requerimientos climáticos de ambas especies, podemos comprobar una clara relación entre los episodios más fríos del final del Pleistoceno y la caza del caballo y la presencia de los restos de ciervo en los yacimientos arqueológicos durante los momentos más templados. Nuestros resultados indican la existencia de una especie de frontera bioclimática Equus/Cervus que se desplazó de sur a norte en la cuenca medietrranea de la peninsula Ibérica a lo largo del Paleolítico superior.

  7. La autoevaluación-autorregulación y la excelencia de la educación superior: Una experiencia valiosa

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    Ana Cecilia Arias Quirós

    2002-01-01

    Full Text Available El trabajo deriva de la experiencia que durante cinco años hemos venido acumulando en la Escuela de Antropología y Sociología de la Universidad de Costa Rica, alrededor de un proceso de autoevaluación- autorregulación que puede convertirse en un camino, para lograr la excelencia académica en el marco de una Universidad Estatal, en este caso concreto, la Universidad de Costa Rica. Sin duda alguna, las condiciones sociales y culturales que enfrentamos actualmente nos plantean un reto en lo que se refiere a la formación académico-profesional de los científicos sociales, particularmente de los antropólogos y antropólogas, sociólogos y sociólogas. Una tensión permanente y acentuada entro lo local y lo global, entre lo particular y lo general, una lucha continua entro la promoción del desarrollo y preservación de lo identitario, un mundo cada vez más comunicado, más tecnificado, pero de igual forma, cada vez más pobre, que afecta hasta su desaparición a la naturaleza. Un mundo que exige mayor preparación a los profesionales, actualización permanente, eficiencia en su quehacer, una preparación académica y un perfil académico-profesional dispuesto para dar respuesta a todos estos requerimientos. Los procesos de autoevaluación-autorregulación permiten –llevarlos adecuadamente– a las unidades académicas, basados en el diálogo y el análisis integral del quehacer docente-administrativo, definir nuevos y posibles escenarios, una formación académica y profesional pertinente, viable, reflexiva y comprometida, especializada y actualizada tecnológicamente hablando y humanista

  8. Bilhemia: a fatal complication following percutaneous placement of a transhepatic inferior vena cava catheter in a child

    Energy Technology Data Exchange (ETDEWEB)

    Sierre, Sergio; Lipsich, Jose; Questa, Horacio [Hospital de Pediatria Prof JP Garrahan, Department of Interventional Radiology, Buenos Aires (Argentina)

    2007-05-15

    A transhepatic central venous catheter was implanted in a 2-year-old child with a history of multiple venous access procedures and superior and inferior vena cava thrombosis. After 2 weeks, inadvertent dislodgement of the catheter was complicated by a biloma. The biloma was percutaneously drained, but a biliary-venous fistula led to a rapidly progressive and fatal bilhemia. We report this case as an infrequent complication of transhepatic catheterization. (orig.)

  9. Estrategia de aprendizaje y su relación con el rendimiento académico en estudiantes de una escuela privada de educación media superior

    Directory of Open Access Journals (Sweden)

    Roux, Ruth

    2015-01-01

    Full Text Available Las estrategias de aprendizaje son actividades o procesos mentales que llevan a cabo los y las estudiantes intencionalmente para procesar, entender y adoptar la información que reciben en el proceso educativo. Este artículo presenta un estudio correlacional que examinó el uso de estrategias de aprendizaje de 162 estudiantes de educación media superior en un colegio privado del noreste de México. Los objetivos eran identificar las estrategias de aprendizaje más utilizadas y conocer la relación entre las estrategias empleadas y las calificaciones reportadas para el período escolar inmediato anterior a la realización del estudio. Se usó el Cuestionario de Evaluación de las Estrategias de Aprendizaje para Estudiantes Universitarios (CEVEAPEU. Las estrategias más utilizadas fueron las motivacionales (ejemplo: la inteligencia se puede incrementar con el esfuerzo y las metacognitivas (ejemplo: procuro aprender de mis errores. La estrategia que mostró mayor correlación con el rendimiento académico fue: tomar apuntes en clase, que es una estrategia de procesamiento y uso de información. Los reactivos que resultaron con baja correlación fueron: la inteligencia se tiene o no y no se tiene y no se puede mejorar (motivacional, y aporto ideas personales (procesamiento y uso de información. El estudio sugiere adaptar el instrumento para su uso en el nivel medio superior y poner mayor atención a la enseñanza de las estrategias de aprendizaje en la educación media superior mexicana. Sobre todo las que se usan en la selección, procesamiento y uso de la información, necesarias en el desarrollo de una sociedad basada en el conocimiento.

  10. Analysis of opinion about nuclear energy and sustainability in a graduate level population; Analisis de opinion sobre la energia nuclear y sustentabilidad en una poblacion de nivel superior

    Energy Technology Data Exchange (ETDEWEB)

    Meza L, C.D.; Arredondo S, C. [IPN, ESFM, 07738 Mexico D.F. (Mexico)]. e-mail: angie2esa@hotmail.com

    2007-07-01

    The Mexican society has a modest knowledge of the nuclear energy, even at the participant students of superior education level in this survey is finds a scarce compression with regard to their obtaining, use and manage. As a result of the lack of interest of the same society and at the problems that know each other like they are: the pollutants that it produces those nuclear waste and the possible use or warlike end, a fear is believed about this energy type. In the Superior School of Physics and Mathematics there is the possibility to make studies so much at master degree level in the one fear of the nuclear energy and the applications of the same one in peaceful uses. However, particularly the studies at master level seem to be immersed in a crisis that requires of different supports to be resolved. For all it previous was thought in carrying out a survey inside a student population with superior level to know the opinion and the knowledge on the nuclear energy in Mexico. In this work the results of the survey are analyzed with the purpose of to determine which is the knowledge of the community mentioned regarding the other energy types, the impact that they have these in the environment, the sustenance of the same ones and in particular on knowledge about the nuclear energy considering the aspects before mentioned. With base had said analysis settles down that the interviewed community knows very little about the nuclear energy but they show interest to study and to obtain bigger information about the same one, for what is very important to diffuse but and better information on the nuclear energy to the population's strata, because it is of supposing that the rest of the population has erroneous information on the nuclear energy. In particular for the community of the Superior School of Physics and Mathematics the diffusion of all the benefits of the peaceful applications of the nuclear energy, including the capacity to generate enormous quantities and

  11. Proceso de Formulación de Estrategias Emergentes en una Institución de Educación Superior

    OpenAIRE

    Galarza-Iglesias, Ana Milena

    2012-01-01

    El presente trabajo está articulado a la línea de investigación de Planeación Estratégica en Instituciones Educativas del Centro de Investigación en Educación de la Escuela de Graduandos en Educación (EGE) del Instituto Tecnológico y de Estudios Superiores de Monterrey y pretende dar respuesta a la pregunta orientadora: ¿Como es el proceso de formulación de estrategias emergentes en la Escuela de Rehabilitación Humana (ERH) de la facultad de Salud para desarrollar el plan estratégico de la Un...

  12. La relación entre educación superior y mercado de trabajo en México. Una breve contextualización

    OpenAIRE

    Alejandro Márquez Jiménez

    2011-01-01

    El documento analiza la relación que se establece entre la educación superior y el mercado de trabajo en México, destacando el problema del desa-juste entre la oferta y la demanda de profesionistas en el mercado laboral. A partir del análisis de diversas fuentes oficiales de información sobre la situación del empleo en México, se concluye que el problema del desajuste es un hecho que se manifiesta a través del desempleo y el subempleo, si bien, existen problemas con su conceptualización y for...

  13. Influencia del liderazgo transformacional en algunas variables de satisfacción organizacional en personal docente y administrativo de una institución pública de educación media superior

    Directory of Open Access Journals (Sweden)

    Ignacio Alejandro Mendoza Martínez

    2012-01-01

    Full Text Available El objetivo del estudio fue determinar la influencia del liderazgo transformacional, transaccional, no liderazgo, y variables de resultado de directivos, en variables de satisfacción organizacional de su personal docente y administrativo en una Institución Pública de Educación Media Superior en el D. F., desde el Modelo de liderazgo transformacional de Bass y Avolio. Se aplicó el "Cuestionario sobre Datos Sociodemográficos y Organizacionales del Trabajador" y la "Adaptación al Multifactor Leadership Questionnaire" (MLQ, a una muestra de personal docente y administrativo n = 110. Los Modelos de Ecuaciones Estructurales permitieron de manera gráfica y estadística analizar la influencia causal de distintas variables de liderazgo transformacional en variables de satisfacción organizacional (satisfacción con la libertad de decisión, satisfacción con el salario actual y la satisfacción con el actual empleo. Se observó que principalmente las variables de resultado, y no las variables de liderazgo, tienen una influencia directa significativa solo en la satisfacción con el actual empleo. Se reafirmaron en el presente estudio, los hallazgos teóricos y empíricos de estudios previos, como son las correlaciones directas significativas entre las variables de liderazgo (liderazgo transformacional, transaccional y variables de resultado, e inversas todas ellas con el no liderazgo. Se obtuvieron niveles de confiabilidad Alpha de Cronbach superiores a .70 en la evaluación de dichas variables, a partir del instrumento.

  14. Emprego de uma abordagem multicritério para classificação do desempenho de instituições de ensino superior Utilización de una metodología multicriterio para la clasificación del desempeño de instituciones de educación superior Using a multicriteria approach for classifying universities' performance

    Directory of Open Access Journals (Sweden)

    André Luís Policani Freitas

    2009-12-01

    Full Text Available Desde os anos 90, o sistema universitário brasileiro tem vivenciado um grande crescimento caracterizado pelo aumento da quantidade de Instituições de Ensino Superior (IES e também da quantidade de cursos de nível superior oferecidos por estas instituições. Neste contexto, é essencial que exista um Sistema de Avaliação da Educação Superior eficiente que seja capaz de monitorar as informações destas instituições e assegurar que a Qualidade em Educação fornecida por estas atendam os padrões recomendados. Uma das formas de obter a eficiência deste sistema consiste em avaliar continuamente o desempenho das IES à luz de vários critérios. Neste sentido, este artigo emprega uma abordagem multicritério fundamentada no emprego do método da Média Ponderada para classificar o desempenho de Instituições de Ensino Superior (IES segundo a percepção de professores e alunos. Com o intuito de investigar o emprego desta abordagem, foi realizado um estudo de caso em uma universidade pública. Foram identificadas as fraquezas/potencialidades e os pontos críticos que devem ser priorizados em prol da melhoria da Qualidade em Educação.Desde los años 90, el sistema universitario brasileño ha vivido profundamente un gran crecimiento caracterizado por el aumento de la cantidad de Instituciones de Educación Superior (IES y también de la cantidad de cursos de nivel superior ofrecidos por estas instituciones. En este contexto, es esencial que exista un sistema eficiente de evaluación de la educación superior que permita supervisar la información de estas instituciones y asegurar que la calidad de la educación proveída alcance los padrones recomendados. Una de las formas para conseguir la eficacia de este sistema consiste en continuamente evaluar el funcionamiento de las IES en los cuales son considerados muchos criterios. En esta dirección, este artículo utiliza una metodología multicriterio embasada en el método de la Media

  15. Recursos de Google para el desarrollo de una Unidad Didáctica con estudiantes de educación superior

    OpenAIRE

    Esteban González Pérez

    2011-01-01

    En la experiencia docente que motivó este artículo, se utilizaron distintos recursos disponibles desde el portal de Google.com para el abordaje de una unidad temática del curso Referencia II del Bachillerato en Bibliotecología y Ciencias de la Información de la Universidad de Costa Rica. Los temas abordados fueron la Web 2.0: su aplicación académica y las necesidades de información y su abordaje. El grupo de estudiantes participantes del curso mostró gran motivación en el desarrollo de las ac...

  16. Naturaleza constitucional de la acción de protección de la violencia intrafamiliar: una propuesta de identidad superior

    OpenAIRE

    Zárate Cortés, Oswaldo Henry

    2014-01-01

    Desde la perspectiva de los principios del derecho, la acción de protección contra violencia intrafamiliar, es una acción de naturaleza constitucional, autónoma, por tanto extraordinaria, del mismo linaje de la Acción de Tutela. Se constituye en un valioso instrumento para enfrentar el flagelo del maltrato que se presenta en el interior de la familia, especialmente en contra de la mujer, niños, niñas, adolescentes, personas mayores y en situación de discapacidad. Pese a la resistencia de l...

  17. Diseño y desarrollo de una barra vibratoria: actividad neuromuscular durante el ejercicio con vibración de las extremidades superiores

    OpenAIRE

    Rodríguez Jiménez, Sergio

    2015-01-01

    [spa] El ejercicio con vibración (EJV) se ha convertido en la última década en una modalidad de ejercicio complementaria al entrenamiento. Las plataformas vibratorias son los dispositivos mas populares y practicos para transmitir la vibración por los pies a las extremidades inferiores mientras se realizan ejercicios estéticos y dinámicos. Otros tipos de dispositivos, tomo las mancuernas vibratorias y diversos sistemas de transmisión de la vibración por cable, se utilizan exclusivamente para t...

  18. Desarrollo de competencias en la educación superior como una oportunidad para mejorar la inteligencia emocional en los estudiantes

    Directory of Open Access Journals (Sweden)

    Lourdes García-Salmones

    2015-06-01

    Full Text Available El mundo actual, globalizado, complejo, cambiante y basado en el conocimiento exige que las personas posean una serie de habilidades, capacidades cognitivas, afectivas, socioemocionales y físicas que les capacite para desenvolverse adecuadamente en diversos contextos, tanto vitales como profesionales. El presente artículo analiza si la Universidad está preparando a los estudiantes en todas estas dimensiones; para ello hemos considerado una muestra de estudiantes de la Universidad Europea (UE, dónde los estudiantes adquieren los conocimientos y las competencias de acuerdo con el EEES y dónde pretendemos valorar si los estudiantes, en los años de preparación universitaria, desarrollan sus competencias emocionales. Para medir la Inteligencia Emocional, se utiliza el cuestionario TEIQue que mide la inteligencia emocional “rasgo” a estudiantes de primer curso y último curso de las Facultades de Ciencias Sociales, Salud y Politécnica. Los resultados obtenidos muestran que no hay diferencias significativas en el perfil emocional entre los alumnos de primer y último curso. Estos resultados nos llevan a señalar que es necesario desarrollar acciones específicas destinadas al desarrollo de las competencias emocionales.

  19. Una propuesta para el estudio dirigido de la programación lineal en el marco del Espacio Europeo de Educación Superior

    Directory of Open Access Journals (Sweden)

    Isabel Mª Manzano Pérez

    2005-01-01

    Full Text Available El objetivo del presente trabajo consiste en suscitar el debate en torno a algunos de los cambios en la práctica docente que conllevará la aproximación a la filosofía de la convergencia europea. En concreto, expondremos una propuesta de elaboración de una Guía Aprendizaje Orientado para el estudio de la Programación Lineal, tema de la asignatura troncal del segundo curso de la Licenciatura en Administración y Dirección de Empresas: Métodos Matemáticos para la Administración y Dirección de Empresas. La Guía de Aprendizaje Orientado propuesta dirigirá al alumno en la profundización y ampliación de los contenidos planteados en las clases presenciales incentivándole en la realización de diversas actividades prácticas relacionadas con la materia objeto de estudio. Para ello la Guía debería en primer lugar, permitir al alumno conocer con detalle cuáles son los objetivos de conocimiento y cuáles son las competencias que se espera adquiera cursando el tema objeto de estudio. Por último, pero no por ello menos importante, la Guía debe facilitar al alumno el control del grado de adquisición de conocimientos a lo largo del tema.

  20. Proceso de Formulación de Estrategias Emergentes en una Institución de Educación Superior

    OpenAIRE

    Galarza-Iglesias, Ana Milena

    2012-01-01

    El presente trabajo está articulado a la línea de investigación de Planeación Estratégica en Instituciones Educativas del Centro de Investigación en Educación de la Escuela de Graduandos en Educación (EGE) del Instituto Tecnológico y de Estudios Superiores de Monterrey y pretende dar respuesta a la pregunta orientadora: ¿Cómo es el proceso de formulación de estrategias emergentes en la Escuela de Rehabilitación Humana (ERH) de la facultad de Salud para desarrollar el plan estratégico de la Un...

  1. ¿Hacia una nueva forma de negociación del presupuesto federal de educación superior? Actores y resultados para el ejercicio fiscal 2013

    OpenAIRE

    Javier Mendoza Rojas

    2013-01-01

    En el artículo se realiza un análisis del proceso de negociación y de los resultados del presupuesto de educación superior comprendido en el Presupuesto de Egresos de la Federación (pef) para el Ejercicio Fiscal 2013. La revisión del procesamiento del presupuesto correspondiente al primer año de la LXII Legislatura de la Cámara de Diputados, a los pocos días del inicio del gobierno de Enrique Peña Nieto, se contrasta con la dinámica de negociación del PEF en las dos legislaturas del sexenio ...

  2. La pervivencia del Musteriense en la mitad sur peninsular durante el Pleniglacial Superior : una revisión crítica de las dataciones

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    Almudena Villar Calvo

    1998-01-01

    Full Text Available El presente artículo cuestiona la pervivencia de los Neandertales y de su tecnología Musteriense en la mitad sur de la Península Ibérica durante el Pleniglacial Superior wurmiense, criticando buena parte de las fechas obtenidas en los principales yacimientos de la región, ya sea por los métodos por los que se han obtenido o bien por la procedencia y la naturaleza de las muestras.This paper calis into question the survival of Neanderthals and their Mousterian technology in Southern Iberia in the Upper Pleniglacial, carrying out a critical review of the dates of mousterian levéis in the main sites of this área, whether by dating methods or by the origin and the nature of sample.

  3. UNA DIDÁCTICA DE FIDEL CASTRO EN LA PREPARACIÓN DE LOS ESTUDIANTES PARA LAS PRUEBAS DE INGRESO A LA EDUCACIÓN SUPERIOR

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    Osmel Reyes Pacheco

    2015-02-01

    Full Text Available El presente artículo persigue como objetivo tratar desde la Didáctica de la Historia por qué los discursos de Fidel Castro se convierten en fuentes para enseñar y aprender la Historia de Cuba, qué procederes para los profesores y estudiantes podemos encontrar en la oratoria de Fidel Castro que contribuyan al trabajo con el ingreso a la educación superior y la metodología para el tratamiento de los discursos de contenido histórico. Contamos con la extraordinaria posibilidad que en los discursos que Fidel pronuncia en muchas ocasiones él mismo es protagonista de los hechos que narra, por lo que se convierten en discursos testimonio y en otros ha profundizado tanto en la historiografía que constituyen verdaderas lecciones de patriotismo.

  4. UNA MIRADA A LOS RESULTADOS DEL EXAMEN DE INGRESO A LA EDUCACION SUPERIOR DESDE LA PERSPECTIVA DEL ANÁLISIS ESTADISTICO IMPLICATIVO

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    Larisa Zamora Matamoros

    2014-08-01

    Full Text Available 10.12957/cadest.2011.15777El objetivo del presente trabajo de investigación es revelar posibles relaciones de similaridad, implicación y cohesión en las respuestas dadas por los estudiantes que se presentaron a los exámenes de ingreso a la educación superior en los cursos 2009-10 y 2010-11, en la provincia de Santiago de Cuba, Cuba. Para ello se toman las notas alcanzadas en cada pregunta por 1542 y 1753 estudiantes respectivamente. Se consideró en el curso 2009-10 como variable suplementaria el municipio de residencia del estudiante (o clasificación adoptada por la comisión de ingreso.

  5. FORMACIÓN DE PROFESORES. ENSEÑANZA DE LA "DIDÁCTICA DEL ATLETISMO". UNA EXPERIENCIA EN EDUCACIÓN SUPERIOR

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    Antonio Calderón

    2010-01-01

    Full Text Available Este estudio, examina la percepción de alumnos sobre su aprendizaje de la asignatura "Didáctica del atletismo", impartida mediante una metodología de enseñanza que fue diseñada bajo las premisas del modelo de Educación Deportiva (ED. La muestra se compuso por cinco clases (20 alumnos por clase de media del Máster de Enseñanza en Educación Física de la Facultad de Ciencias del Deporte de la Universidad de Oporto. El trabajo se desarrolló a lo largo de un semestre. La metodología de enseñanza que utilizaron, trató de enseñar los contenidos de la "Didáctica del atletismo", y las características propias del modelo de ED. Para ello se utilizaron entrevistas semiestructuradas y cuestionarios (papel y online para analizar el comportamiento de las variables analizadas. Existe una mayoría absoluta de alumnos (90%, que coincide en afirmar que su aprendizaje de los contenidos de la asignatura de "Didáctica del atletismo" y del modelo de ED es bajo su punto de vista muy adecuado, debido fundamentalmente a las demandas previas que su intervención como docentes les exigía. La metodología de enseñanza utilizada, es adecuada para desarrollar los contenidos de la asignatura "Didáctica del atletismo", y para formar a los alumnos universitarios en el conocimiento de las características principales del modelo de ED.

  6. Leiomiosarcoma endovascular en vena cava inferior con síndrome de Budd-Chiari asociado: a propósito de un caso Endovascular Leiomyosarcoma ofthe Inferior Vena Cava with Budd-Chiari syndrome: a case report

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    David Ibáñez Muñoz

    2011-09-01

    Full Text Available Presentamos el caso de una mujer de 56 años de edad, que acude al Servicio de Urgencias de nuestro centro por un cuadro de distensión y dolor abdominal difuso con edemas en extremidades inferiores. En los estudios de imagen realizados (ecografía y TC se demostró la existencia de ocupación intraluminal de la vena cava inferior, por una masa que se extendía desde el drenaje de las venas renales hasta su confluencia en la aurícula derecha, con signos de obstrucción de las venas suprahepáticas. El diagnóstico anatomopatológico final fue de leiomiosarcoma con síndrome de Budd-Chiari asociado. El leiomiosarcoma de vena cava inferior es una patología poco frecuente y su asociación con síndrome de Budd-Chiari es aún más excepcional.We report the case of a 56-year-old woman who presented at our Emergency Department with symptoms ofdiffuse abdominal pain and distention with lower-extremity edema. Imaging studies (ultrasound and computed tomography showed an intraluminar inferior vena cava mass extending from the renal veins drain to their confluence at the right atrium, with signs of obstruction of the suprahepatic veins. The final pathology diagnosis was leiomyosarcoma with Budd-Chiari syndrome. The leiomyosarcoma of the inferior vena cava is an infrequent pathology and its association with Budd-Chiari syndrome is even rarer.

  7. MODELO PARA LA EVALUACIÓN FINANCIERA DE UNA INSTITUCIÓN PÚBLICA DE SERVICIO DE EDUCACIÓN SUPERIOR

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    Mauricio Calderón Barquero

    2002-09-01

    Full Text Available El propósito fundamental del presente estudio es la elaboración de un modelo de evaluación cuantitativa de la dimensión financiera para ser utilizado en los procesos de evaluación y planificación de entidades públicas de servicio sin fines de lucro.La propuesta consiste en un instrumento analítico que coincide, en algunos aspectos, con el modelo tradicional de razones financieras, en razón de que el fenómeno en estudio es muy similar. Sin embargo, presenta diferencias importantes, las cuales ponen de manifiesto las características concretas y distantes de la organización de interés. En el caso de la universidad pública, por ejemplo, es indispensable tener presente las características en torno a sus objetivos (sobre todo la poca importancia en la ganancia y a sus propietarios (especialmente por el fuerte compromiso con los contribuyentes del país.El modelo de evaluación financiera consta de cuatro dimensiones de análisis de las finanzas universitarias: la liquidez o la capacidad de la institución para hacer frente a las obligaciones de corto plazo; la administración de activos; la administración de las deudas; y la eficiencia y la eficacia con que opera la institución. Se pudo determinar que a pesar de la amplia validez del enfoque tradicional en dos de esos aspectos: la liquidez y la administración de deudas, fue necesaria una revisión cuidadosa de los indicadores tradicionales en vista de que las características concretas de la Universidad demostraron la conveniencia del diseño de otros indicadores para lograr una mejor evaluación.Las conclusiones más importantes del estudio son dos: que la evaluación financiera en los términos en que fue planteada no solo es pertinente sino que además es perfectamente factible. Al final se mencionan algunas recomendaciones que persiguen, con los propósitos del estudio, fortalecer el compromiso con el cumplimiento de los objetivos por los que la institución fue creada.

  8. Función tutorial del profesor en programas de educación superior a distancia: una propuesta de modelo

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    Elia Olea Desert

    2011-04-01

    Full Text Available En un estudio comparativo entre organismos e instituciones que se dedican a la educación a distancia se identificaron las características, funciones y competencias que debe tener un profesor que trabaja en programas de nivel superior en el Instituto Politécnico Nacional y realice funciones tutoriales por medio de las tecnologías de la información y la comunicación. Para la selección de estos tres aspectos recuperados de las diversas propuestas, y que se integraron en un modelo, se tomó como referencia el modelo educativo vigente en el instituto. Entre los elementos que identifican a este docente se tienen: los requisitos laborales, la formación académica, los atributos personales, las actividades académicas y las acciones tutoriales; asimismo, desarrolla funciones pedagógicas, de actualización, interacción, retroalimentación y apoyo, evaluación e investigación. Las competencias adecuadas son de tipo cognitivas, pedagógicas, interpersonal, técnicas y de investigación.

  9. Aspectos a considerar en la redacción de un ensayo con base en una obra literaria en una clase de los niveles intermedio-superior y avanzado en lengua extranjera

    Directory of Open Access Journals (Sweden)

    Francisco Roberto Rojas Caldelas

    2008-01-01

    Full Text Available La asignación de redactar ensayos sobre una obra literaria ha sido una praxis cotidiana en las clases de lenguas extranjeras. Esta labor se lleva a cabo cuando el alumno tiene un cierto dominio de la lengua meta y se asume que es capaz de escribir prosa de cierta extensión. Por medio del contacto con el texto literario el alumno interpreta la visión del autor, los rasgos inherentes de la cultura descrita, así como la temporalidad, continuidad y universalidad de los personajes y eventos descritos en ella. En el presente documento se identifican e ilustran las características formales y conceptuales del ensayo desde la lógica académica literaria. Asimismo, se reflexiona acerca de la importancia de la lectura literaria. Se enmarca el entorno didáctico y sus momentos más importantes para redactar un ensayo literario en lengua extranjera sobre bases crítico-literarias propuestas por Roland Barthes y bases filosófico-literarias de la interpretación de Hanz Georg Gadamer. Y por último, se contextualizan las limitaciones y los alcances de la propuesta, así como el papel del maestro en la misma.

  10. Computational Modeling of Blood Flow in the TrapEase Inferior Vena Cava Filter

    Energy Technology Data Exchange (ETDEWEB)

    Singer, M A; Henshaw, W D; Wang, S L

    2008-02-04

    To evaluate the flow hemodynamics of the TrapEase vena cava filter using three dimensional computational fluid dynamics, including simulated thrombi of multiple shapes, sizes, and trapping positions. The study was performed to identify potential areas of recirculation and stagnation and areas in which trapped thrombi may influence intrafilter thrombosis. Computer models of the TrapEase filter, thrombi (volumes ranging from 0.25mL to 2mL, 3 different shapes), and a 23mm diameter cava were constructed. The hemodynamics of steady-state flow at Reynolds number 600 was examined for the unoccluded and partially occluded filter. Axial velocity contours and wall shear stresses were computed. Flow in the unoccluded TrapEase filter experienced minimal disruption, except near the superior and inferior tips where low velocity flow was observed. For spherical thrombi in the superior trapping position, stagnant and recirculating flow was observed downstream of the thrombus; the volume of stagnant flow and the peak wall shear stress increased monotonically with thrombus volume. For inferiorly trapped spherical thrombi, marked disruption to the flow was observed along the cava wall ipsilateral to the thrombus and in the interior of the filter. Spherically shaped thrombus produced a lower peak wall shear stress than conically shaped thrombus and a larger peak stress than ellipsoidal thrombus. We have designed and constructed a computer model of the flow hemodynamics of the TrapEase IVC filter with varying shapes, sizes, and positions of thrombi. The computer model offers several advantages over in vitro techniques including: improved resolution, ease of evaluating different thrombus sizes and shapes, and easy adaptation for new filter designs and flow parameters. Results from the model also support a previously reported finding from photochromic experiments that suggest the inferior trapping position of the TrapEase IVC filter leads to an intra-filter region of recirculating

  11. Autorregulación del aprendizaje en la educación superior en Iberoamérica: una revisión sistemática

    Directory of Open Access Journals (Sweden)

    Aldo Hernández Barrios

    2017-01-01

    Full Text Available El propósito de este estudio fue realizar una revisión sistemática en torno a los estu- dios empíricos desarrollados en el área de la autorregulación del aprendizaje en estudiantes universitarios de Iberoamérica. Se realizó la búsqueda en las bases de datos Academic Search Complete ® , Educational Source ® , Science Direct ® , Scopus ® , Scielo ® y Redalyc ® . Como criterio de elegibilidad se consideró que los estudios se hubieran realizado con población estudiantil universitaria de por lo menos un país iberoamericano y que reportaran hallazgos independien- temente de la metodología implementada. Un total de 43 artículos fueron seleccionados de manera posterior a la aplicación de los criterios de elegibilidad y a la eliminación de los dupli- cados. Se presenta información bibliométrica y se evalúan los alcances de los estudios a partir de su tipología metodológica. En la parte final se plantean algunas consideraciones sobre el estado de desarrollo de la autorregulación del aprendizaje en la región.

  12. El portafolio: una herramienta facilitadora del cambio en la educación superior desde la práctica didáctica

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    Hilda Rosa Guerrero Cuentas

    2015-01-01

    Full Text Available El presente artículo, resultado del proyecto de investigación “El portafolio, estrategia pedagógica en la construcción de saberes con docentes de la Especialización en Estudios Pedagógicos de la CUC”, tuvo como propósito generar estrategias pedagógicas que contribuyan al funcionamiento del portafolio del docente universitario de la Especialización de Estudios Pedagógicos de la CUC, en su práctica didáctica, desde una mirada crítica-reflexiva para construir nuevos saberes. Se contemplaron como referentes teóricos centrales a Rafael Porlán y José Martín (1993, quienes han desarrollado diferentes estudios sobre el Portafolio y la Teoría de la Práctica Pedagógica de Bernstein (1993. La metodología fue cualitativa bajo el paradigma investigación-acción. Arrojó como resultado la importancia de aplicar el portafolio en la práctica didáctica como estrategia pedagógica, para transformar la práctica docente que responda a las necesidades de la enseñanza desde la escritura, asumir la educación en un replanteamiento del currículo y la práctica pedagógica.

  13. Internacionalización de la educación superior en Costa Rica La experiencia de una maestría de doble titulación de la Universidad Nacional

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    Arlette Pichardo Muñiz

    2016-06-01

    Full Text Available Costa Rica ha propiciado la movilidad internacional estudiantil y docente desde hace varias décadas, incluso como sede de programas internacionales de educación superior. El Centro Internacional de Política Económica para el Desarrollo Sostenible (CINPE de la Universidad Nacional (UNA en la actualidad imparte la Maestría en Gerencia del Comercio Internacional (MGCI, en doble titulación con el Instituto Tecnológico de Santo Domingo (INTEC, República Dominicana. Esta es la primera de su género en el país –según se conoce hasta la fecha– y, quizás, en Centroamérica, donde una universidad costarricense aporta el currículo y asume el liderazgo académico, incorporando la transculturalidad como valor agregado. El objetivo del artículo es difundir lecciones de esta experiencia que puedan ser útiles para otras iniciativas. En términos generales, los resultados de la sistematización indican que: (1 la inclusión de las dimensiones internacional e intercultural supone, primero, la internacionalización en casa; (2 la creación de condiciones iniciales para escalar peldaños superiores en el proceso de internacionalización, no ocurre de la noche a la mañana; (3 la gestión y gerencia suponen soluciones innovadoras y consensuadas; y (4 hace falta poner la debida atención en la armonización de procedimientos, instrumentos y formularios. Sobre la base de los principales hallazgos se presentan algunas conclusiones, en particular para la discusión de las implicaciones de un programa de esta naturaleza u otros con características similares.

  14. Results of the change of the lighting system in an institution of higher education; Resultados del cambio del sistema de iluminacion en una institucion de educacion superior

    Energy Technology Data Exchange (ETDEWEB)

    Torres P, Irene; Ambriz G, Juan Jose; Romero Paredes R, Hernando; Heras G, Francisco Javier [Universidad Autonoma Metropolitana. Iztapalapa (Mexico)

    2003-07-01

    In the Universidad Autonoma Metropolitana (UAM) actions have been made to diminish the energy consumption, one of them was the substitution and diminution of half of fluorescent lamps of 39W with ferromagnetic ballast for lamps of high electronic efficiency of 32W with electronic ballast. In this paper the results of the evaluation of the lighting level is presented after the indicated change, for which the measurement of the illumination level was made in the classrooms of 4 buildings of the UAM-1, as well as the calculation of the diminution of the electrical consumption for lighting taking into account previously measurements made of the consumption of electrical energy. The effect in the diminution of the electrical bill is significant, nevertheless, the lighting levels found are slightly insufficient. [Spanish] En la Universidad Autonoma Metropolitana se han realizado acciones enfocadas a disminuir el consumo de energia, una de ellas fue la sustitucion y disminucion a la mitad de lamparas fluorescentes de 39W con balastro ferromagnetico por lamparas de alta eficiencia de 32W con balastro electronico. En este trabajo se presentan los resultados de la evaluacion del nivel de iluminacion despues del cambio senalado, para lo cual se realizo la medicion del nivel de iluminacion en los salones de clase de 4 edificios de la UAM-I, asi como el calculo en la disminucion en el consumo electrico por iluminacion tomando en cuenta mediciones de consumo de energia electrica realizadas anteriormente. El efecto en la disminucion de la facturacion electrica es apreciable, sin embargo, los niveles de iluminacion encontrados son ligeramente insuficientes.

  15. Filtros de vena cava en pacientes con cáncer

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    Fernando A. Díaz Couselo

    2012-08-01

    Full Text Available Los pacientes con tromboembolismo venoso (TEV y cáncer tienen más complicaciones vinculadas al tratamiento anticoagulante que la población general. Los filtros de vena cava constituyen una herramienta útil para el tratamiento del TEV y su utilización es controvertida en estadios avanzados de la enfermedad. En este trabajo se revisaron las indicaciones, complicaciones y frecuencia de retiro de los filtros de vena cava en una población de pacientes oncológicos con TEV. Se analizaron 27 pacientes a quienes se les había colocado filtros de vena cava. Veinticinco tenían tumores sólidos y dos linfomas no Hodgkin. Veinticinco estaban bajo tratamiento activo (cirugía y/o quimioterapia. Diecinueve se hallaban en estadio IV de su enfermedad. El motivo de su indicación fue profilaxis en el período perioperatorio en 14 casos (51.9%, hemorragia (n = 5, trombocitopenia (n = 4, metástasis en sistema nervioso central (n = 2, accidente cerebrovascular (n = 1 y neurocirugía previa no reciente (n = 1. Se retiraron 8 (29.6% filtros. La mediana del tiempo de permanencia fue 21 días (6-75. No hubo diferencias estadísticamente significativas en la frecuencia de retiro entre los filtros colocados en el perioperatorio (6/14 y los colocados por otras contraindicaciones para la anticoagulación (2/13; p = 0.2087. No hubo fracasos ni complicaciones en los procedimientos de colocación y retiro.

  16. Suprarenal symplastic leiomyoma of the inferior vena cava.

    Science.gov (United States)

    Kepenekci, Ilknur; Demirkan, Arda; Sözener, Ulas; Cakmak, Atil; Demirer, Seher; Alaçayir, Iskender; Ekinci, Cemil

    2009-01-01

    We report on a case of a leiomyoma in the inferior vena cava that appeared in the image to be located in the adrenal gland. En bloc excision of the tumor with the right adrenal gland and the involved segment of the vena cava was carried out. Histopathological work-up of the tumor revealed smooth muscle fibers and marked nuclear pleomorphism consistent with symplastic leiomyoma. This case report presents a distinct histological variant of the rarely seen primary smooth muscle tumor of the inferior vena cava.

  17. Tomographic anatomy of the vena cava and renal veins: features relevant to vena cava filter placement

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    Thiago Melo do Espírito Santo

    2015-03-01

    Full Text Available BACKGROUND: There is a growing demand for invasive procedures involving the inferior vena cava, in particular for placement of vena cava filters. It is not always easy to identify the more distal renal vein with cavography, for safe release of filters. OBJECTIVES: To determine parameters for the relationships between the renal veins and the infrarenal vena cava and their corresponding vertebral bodies, their relationships with biotype and the occurrence of anatomic variations, the relationships between vertebral bodies and the bifurcation of the common iliac veins and the distance from this bifurcation to the outflow of the more distal renal vein, with reference to placement of vena cava filters. METHODS: A total of 150 abdominal computed tomography scans conducted from October to November 2011 were analyzed and classified according to the biotype exhibited (using Charpy's angle. Scans were performed at MEDIMAGEM and analyzed at the Integrated Vascular Surgery Service, both part of Hospital da Beneficência Portuguesa in São Paulo, Brazil. RESULTS: In 127 of the 150 scans analyzed (84.66%, the more distal renal vein emerged between the first lumbar intervertebral space (L1-L2 and the body of L2, irrespective of patient biotype. Just 23 patients (15.33% exhibited a more distal renal vein with outflow below the body of L2, i.e. in the projection of the space between L2 and L3. CONCLUSIONS: The radiological correlation between the confluence of the more distal renal vein and vertebral bodies exhibits little variation, irrespective of the biotype of the patient.

  18. El espacio abierto: una tecnica didactica facilitadora del desarrollo de competencias generales en la formacion profesional superior The open space: a facilitating didactic technique in the development of genereral competences in higher education

    Directory of Open Access Journals (Sweden)

    Alejandro Villalobos Claveria

    2009-11-01

    Full Text Available El propósito principal del presente artículo es demostrar que el Espacio Abierto (Open Space como técnica investigativa puede ser un adecuado procedimiento didáctico para el desarrollo de competencias genéricas (transversales en la formación profesional superior. Para alcanzar dicho propósito, en primer lugar, se describe el Espacio Abierto como la técnica investigativa y la información requerida para su aplicación. En segundo lugar, se presenta una propuesta de aplicación ya validada con un conjunto de académicos de dos universidades regionales, para su eventual utilización en las aulas universitarias. El presente trabajo se centra en los resultados preliminares del proyecto Fondecyt Nº 1070466: "La construcción del sujeto docente universitario en universidades regionales: Factores claves en su desempeño académico y profesional", financiado por el gobierno de Chile, en la línea Conicyt/Fondecyt. Estudio que pretende caracterizar factores claves que definen la profesión docente universitaria en instituciones de enseñanza superior regionales para el diseño de una propuesta de perfeccionamiento de académicos e investigadores en docencia superior.The main goal of this article is to demonstrate that the Open Space as a research technique can be a suitable didactic procedure for the development of general competences (cross-sectional in higher education. In order to reach this goal, we begin by describing the Open Space as a research technique as well as the information required for its application. Secondly, an application proposal is presented, which has been previously validated by a group of professors from two regional universities. This proposal is intended to be used in university classrooms when possible. This study focuses on the preliminary results of Fondecyt Project Nº 1070466: "The education of the university professor in regional universities: Key factors in their academic and professional performance", financed

  19. Una billetera para la enseñanza musical instrumental en la educación superior: una reflexión desde la sociología y lo transdisciplinar

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    Rosabal-Coto, Guillermo

    2012-02-01

    Full Text Available Resumen: Este ensayo pretende servir de reflexión en torno a retos específicos que las y los docentes de ejecución de instrumentos musicales en centros de educación superior suelen enfrentar en su práctica educativa, específicamente en relación con los contextos, bagajes, y metas del estudiantado. La reflexión se apoya en conceptos de índole sociológico y propone interrogantes y acciones conducentes a un abordaje transdisciplinario de los retos en cuestión. Está escrita en un estilo coloquial, con el objeto de lograr cercanía con las personas destinatarias, e incluye el planteamiento de un caso específico como anexo.Abstract: This essay is a reflection on specific challenges that instrumental music teachers in higher education face in relation to student contexts, backgrounds and goals. The reflection leans on concepts of sociological nature and proposes actions by teachers, towards a transdisciplinary approach of the challenges at stake. It is written in a colloquial style in order to better approach the target readers, and includes a case for study as an appendix.

  20. Caracterización de las Instituciones de Educación Superior (IES en Chile: una aproximación a un modelo futuro de universidad (Principales reformas que se han presentado en el modelo de educación superior en Latinoamérica impactando en la mercantilización de las universidades

    Directory of Open Access Journals (Sweden)

    Rafael Jaime Carmona-López

    2014-01-01

    Full Text Available El contexto de la investigación que recoge este artículo busca mostrar a partir de la evolución y el desarrollo de las universidades y su direccionamiento en América Latina, y de modo particular en Chile, los distintos modelos de universidad, que llegan incluso a repercutir en el desarrollo de las sociedades, tanto pasadas como contemporáneas, y de los que es posible destacar algunas características similares y diferenciales que estos presentan. Cabe anotar que el modelo de educación chileno se ha considerado de gran impacto en algunos países de América Latina, especialmente en Colombia. Además, se planteó como objetivo general de esta investigación el reflexionar acerca de las reformas de la educación superior en América Latina, y el impacto que estas reformas han tenido en los últimos años en Chile, las cuales parecen haber generado una alta inconformidad en el contexto social, debido a la excesiva mercantilización de los servicios educativos. Para el desarrollo de este trabajo se realizó una revisión amplia de literatura que da cuenta del fenómeno a investigar y se realizaron entrevistas semi-estructuradas a expertos en el tema que ayudaron a comprender lo que los autores explican en la bibliografía en relación con los modelos y reformas de la educación en América Latina y la actual situación de la educación en Chile, consiguiendo de esta manera una clara visión sobre la realidad del problema.

  1. Ideas para una reforma del componente legal relacionado con la tipología de las instituciones de educación superior Ideias para uma reforma do componente legal relacionado com a tipologia das instituições de educação superior Ideas for a reform of the legal components related to the type of higher education institutions (hei

    Directory of Open Access Journals (Sweden)

    Luis Enrique Orozco Silva

    2012-11-01

    Full Text Available El autor plantea que un aspecto central de la reforma de la educación superior en curso debe consistir en un replanteamiento de la tipología de las instituciones que ofrecen el servicio de la educación de tercer nivel. Ello traería dos ventajas básicas; de una parte, que la oferta educativa sea clara para las demandas que atiende; y de otra, que cada institución posea una identidad académica precisa y según la modalidad académica que ofrece. Con la situación actual hay confusión para el mercado y poca claridad hacia adentro del sistema contribuyendo con ello a la asimetría del mercado de la Educación Superior. Sobre la base de un diagnóstico sobre el comportamiento del sistema en los últimos veinte años propone una alternativa para la política pública que se configura en el momento en Colombia.O autor propõe que um aspecto central da reforma da educação superior deve consistir numa reelaboração da tipologia das instituições que oferecem o serviço da educação de terceiro nível. Isso traria duas vantagens básicas: de uma parte, que a oferta educativa seja clara para as demandas que atende; e de outra, que cada instituição possua uma identidade acadêmica precisa e segundo a modalidade acadêmica que oferece. Com a situação atual há confusão para o mercado e pouca clareza para o interior do sistema contribuindo com isso à assimetria do mercado da Educação Superior. Sobre a base de um diagnóstico a respeito do comportamento do sistema nos últimos vinte anos, propõe uma alternativa para a política pública que se configura no momento na Colômbia.The author proposes that a central aspect of the reform of the higher education system under current review must consider how the types of higher education institutions are determined. Doing such a review has two advantages: making clear the educational offer based on the demands of the system, and, that every institution has a precise academic identity and academic

  2. Frenillo labial superior doble

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    Carlos Albornoz López del Castillo

    Full Text Available El frenillo labial superior doble no sindrómico es una anomalía del desarrollo que no hemos encontrado reportada en la revisión bibliográfica realizada. Se presenta una niña de 11 años de edad que fue remitida al servicio de Cirugía Maxilofacial del Hospital "Eduardo Agramonte Piña", de Camagüey, por presentar un frenillo labial superior doble de baja inserción. Se describen los síntomas clínicos asociados a esta anomalía y el tratamiento quirúrgico utilizado para su solución: una frenectomía y plastia sobre la banda muscular frénica anormal que provocaba exceso de tejido en la mucosa labial. Consideramos muy interesante la descripción de este caso, por no haber encontrado reporte similar en la literatura revisada.

  3. CALIDAD PROFESIONAL DEL TÉCNICO SUPERIOR UNIVERSITARIO EN ADMINISTRACIÓN. UNA VISIÓN DE GRADUADOS Y DE EMPLEADORES (PROFESSIONAL QUALITY OF THE HIGHER TECHNICAL UNIVERSITY IN ADMINISTRATION. A VISION FOR GRADUATES AND EMPLOYERS

    Directory of Open Access Journals (Sweden)

    Damián Simón Javier

    2009-08-01

    Full Text Available Resumen:Se presentan los resultados del trabajo de investigación de un estudio de caso “Calidad profesional del Técnico Superior Universitario en Administración. Una visión de graduados y de empleadores”. El objetivo fue evaluar el grado de cumplimiento en las funciones y tareas del ejercicio profesional de los TSUA, así como las habilidades y actitudes de los mismos en respuesta al perfil profesional solicitado por el empleador e, identificar las exigencias profesionales a las que se enfrentan dichos graduados. Se trabajó con una muestra de 60 graduados de las primeras cuatro generaciones y se entrevistó a dieciocho empleadores que a la fecha han contratado a una gran cantidad de graduados. Los resultados obtenidos al contrastar las opiniones de los graduados y las de los empleadores muestran un alto grado de concordancia, existe satisfacción de los empleadores en cuanto al nivel de cumplimiento de las funciones, habilidades y actitudes de los TSUA; no obstante, los graduados presentan un bajo grado de satisfacción en el nivel salarial que obtienen, el escaso reconocimiento profesional alcanzado, el tipo de puesto que ocupan y la posición jerárquica alcanzada.Abstract:We present the results of the research named "Professional quality of the higher technical university in administration. A view of graduates and employers”. The goal was t o assess the degree of compliance on the functions and duties of the profession of TSUA, as well as the skills and attitudes of those in response to theprofile requested by the employer. Identify the professional demands faced by these graduates. We worke d with a sample of 60 graduates of the first four generations and interviewed eighteen employers whose have recruited a large number of graduates. Until now the results contrast the views of graduates and employers show a high degree of consistency, there is a satisfaction of employers in the level of accomplishment of the tasks, skills and

  4. INTERDISCIPLINARIETY IN HIGHER EDUCATION: A GUIDE PROPOSAL FOR ROLE PLAY DESIGN LA INTERDISCIPLINARIEDAD EN LA EDUCACIÓN SUPERIOR: PROPUESTA DE UNA GUÍA PARA EL DISEÑO DE JUEGOS DE ROL

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    Deborah García Magna

    2011-04-01

    Full Text Available The aim of this article is to establish a teaching methodology that is integrated into the requests and necessities of the European Higher Education Area (EHEA, in which the undergraduate student must acquire all the professional competences guaranteeing the employability after his/her studies. We propose an interdisciplinary role play model based on the participation and collaboration among university teachers from different knowledge fields as well as undergraduate students from a great variety of the new Bachelor degrees. This model offers the teacher a useful guide for the design and the development of role play activities, whose aim is the acquisition and the implementation of general and specific competences of the new curricula. The use of an active methodology in our classrooms implies  the dinamization of the face to face teaching, since the game is the perfect element inviting the participation and motivation of the student. Thus, we fulfill one of our main objectives, that is, teaching the student to learn how to learn through the simulation of quasireal situations in the academic context.Con este artículo pretendemos configurar una metodología docente que se integra en las demandas y necesidades del Espacio Europeo de Educación Superior (EEES, en el que el alumno debe adquirir competencias profesionales que le garanticen la empleabilidad tras la finalización de sus estudios. Se propone un modelo de juego de rol de carácter interdisciplinar basado en la participación y colaboración de profesores de diferentes áreas de conocimiento y de alumnos de distintos títulos de grado. Este modelo ofrece al docente una guía que facilita el diseño y desarrollo de juegos de rol, cuyo objetivo es la adquisición y puesta en práctica de competencias genéricas y específicas de los nuevos planes de estudio involucrados. El uso de una metodología activa en nuestras aulas implica la dinamización de la docencia presencial -porque el juego

  5. De una didáctica tradicional a la mediación de los procesos de aprendizaje en los currículo de educación superior

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    Leyda Alviárez

    2009-05-01

    Full Text Available La evolución de la educación formal ha estado signada por parámetros funcionales que van, desde los tradicionales modelos curriculares conductivo cognoscitivos, hasta el desarrollo de la mediación del aprendizaje en base a las competencias desarrolladas por los alumnos; en la búsqueda de su autorrealización y la autogestión del aprendizaje. En la actual sociedad del conocimiento, y en especial en las instituciones de educación superior, aún se debate constantemente acerca del rumbo que debe seguir tal proceso de aprendizaje, debe colegirse que, quienes están comprometidos con la educación requieren ser conscientes de su labor, la cual va más allá de la mera transmisión de contenidos, y que es responsabilidad de todos los actores institucionales desde cada una de las disciplinas, guiar al alumno en el desarrollo de sus habilidades y estrategias para fomentar la autonomía en su formación y en la construcción del conocimiento.

  6. Los modelos de evaluación aplicados a los programas educativos de educación superior: una perspectiva bibliotecológica Higher education curricular evaluation models: a Library Science perspective

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    Jorge Gómez Briseño

    2011-04-01

    Full Text Available La evaluación de los programas educativos como una forma de mejorar su calidad ha sido uno de los temas a debate desde finales del siglo XX e inicios del XXI. Más allá de las discrepancias en torno a sus resultados, la evaluación de los programas educativos es un método que ha comprobado su efectividad y eficiencia para conocer sus fortalezas y áreas de oportunidad, a partir de su vinculación con la universidad de la cual depende, así como con su infraestructura e incluso aspectos particulares como su desarrollo académico y el de su investigación. En México los Comités Interinstitucionales para la Evaluación de la Educación Superior (CIEES se encargan de evaluar más de 3,400 programas académicos (técnico superior universitario, licenciatura y posgrado, mediante metodologías y marcos de evaluación rigurosos, con criterios y estándares internacionales semejantes a los de una investigación científica. En esta inercia los programas mexicanos de Licenciatura en Bibliotecología se han sometido a los procesos de evaluación interinstitucional de los CIEES y han sido reconocidos en su mayoría por su calidad académica, lo que ha redundado en mejoras sustanciales en los programas que se someten a su revisión. Con respecto al nivel de posgrado, algunas maestrías en Bibliotecología han sido evaluadas por el Marco de Referencia para la Evaluación y Seguimiento de Programas de Posgrado del Consejo Nacional de Ciencia y Tecnología (CONACYT, pero no existe un modelo específico para dichos programas, por lo que con base a lo establecido por la Sección de Educación y Capacitación de la IFLA, se considera oportuno proponer el desarrollo de un modelo de evaluación para serle aplicado específicamente a dichos programas.Curricular evaluation carried out to enhance quality has been discussed widely over the last decade. Beyond the divergences in opinion regarding outcomes, curricular evaluation is a proven, efficient and effective

  7. Pertinencia académica y social de la investigación en un programa de Psicología de una institución de educación superior

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    Raquel Ferrer Angulo

    2015-10-01

    Full Text Available El presente artículo de investigación despliega los resultados del estudio, que se realizó en el periodo de 2008 a 2012 como parte del proceso de autoevaluación y reacreditación del Programa de Psicología. Los datos se analizan a partir de un levantamiento de línea base de las características 26 y 27, Formación y Compromiso con la Investigación, respectivamente, y de los indicadores inherentes a cada una de ellas, de conformidad con los requerimientos del Consejo Nacional de Acreditación –CNA– a las instituciones de educación superior. La investigación del programa de Psicología al que se refiere el presente trabajo mantiene una decidida identificación con la política de alta calidad direccionada por el CNA. De este modo, en dicho Programa se presenta una dinámica de permanente mejoramiento como vía certera para el cumplimiento de la función social de la educación superior, que debe orientarse a formar y producir conocimientos en respuesta a las necesidades reales de la población, según el contexto en el que se encuentra inmersa. AbstractThe Psychology Research Program maintains a strong identification with high quality policy directed by the Consejo Nacional de Acreditación –CNA– and a dynamic of continuous improvement as a way to ful ll the accurate social function of higher education focused on training and produce knowledge in response to the real needs of the population and context in which it is immersed. This research paper displays the results on the Academic and Social Relevance of Research in Psychology Program conducted from 2008 to 2012, as part of the process of self-evaluation and re-accreditation of the program which are analyzed from a survey of base line characteristics of 26 and 27, Training and Commitment to Research and indicators inherent in each of them, in accordance with the requirements of the CNA to institutions of higher education. The research carried out by the

  8. Entrapment of J-tip guidewires by Venatech and stainless-steel Greenfield vena cava filters during central venous catheter placement: percutaneous management in four patients.

    Science.gov (United States)

    Andrews, R T; Geschwind, J F; Savader, S J; Venbrux, A C

    1998-01-01

    We present four patients in whom bedside placement of a central venous catheter was complicated by entrapment of a J-tip guidewire by a previously placed vena cava (VC) filter. Two Venatech filters were fragmented and displaced into the superior VC or brachiocephalic vein during attempted withdrawal of the entrapped wire. Two stainless-steel Greenfield filters remained in place and intact. Fluoroscopically guided extraction of both wires entrapped by Greenfield filters was successfully performed in the angiography suite.

  9. Políticas de acceso de la población vulnerable a la educación superior, una visión desde la experiencia de la Universidad del Magdalena

    Directory of Open Access Journals (Sweden)

    Álvaro Luís Mercado Suárez

    2015-01-01

    Full Text Available En este documento se analizan las políticas implementadas por la Universidad del Magdalena para garantizar el acceso de los grupos vulnerables a la educación superior, definiendo como vulnerables a los bachilleres desplazados, las comunidades indígenas, los estudiantes afrocolombianos, la mujer cabeza de familia de estrato bajo, y a los bachilleres provenientes de colegios públicos. Teóricamente, el estudio está asociado a los aportes de la affirmative action, la cual contempla la intención deliberada de eliminar cualquier ápice de discriminación en el desarrollo de las sociedades y las instituciones. Durante el estudio, se encontró que más del 70% de este grupo de estudiantes, convive en un núcleo familiar con ingresos inferiores a los seiscientos mil pesos/mes. Por lo tanto, las principales estrategias de la Universidad, están enfocadas en allanar las limitaciones económicas de la población vulnerable, mediante las exoneraciones y subsidios acompañadas de un marco normativo que facilita el acceso de esta comunidad a la Universidad. Por otra parte, metodológicamente es un tipo de artículo derivado de una investigación.Palabras clave: affirmative action; equidad; población vulnerable; educación superior. Access policies of vulnerable population to higher education, a vision from the experience of Magdalena’s University.AbstractThis document analyzes the politics implemented by university of Magdalena to guarantee the access of higher education to vulnerable groups. Vulnerable is defined as the displaced graduate, the indigenous communities, the afro-Colombian students, the female head of a household of a low stratum and the graduates who come from public schools. In theory, the study is associated with the contribution of the affirmative action, which includes the deliberate intention to eliminate any discrimination in the development of societies and institutions. During the study, it was found that more than 70% of

  10. Symptomatic duodenal perforation by inferior vena cava filter.

    Science.gov (United States)

    Baptista Sincos, Anna Pw; Sincos, Igor R; Labropoulos, Nicos; Donegá, Bruno C; Klepacz, Andrea; Aun, Ricardo

    2017-01-01

    Objectives Duodenal perforation by an inferior vena cava filter is rare and life threatening. Our objective is to find out number of occurrences and compare diagnosis and treatments. Method The reference list of Malgor's review in 2012 was considered as well as all new articles with eligible features. Search was conducted on specific databases: MEDLINE, Web of Sciences, and Literatura Latino-Americana e do Caribe em Ciências da Saúde. Results Most of the patients presented with upper abdominal pain and the use of radiologic studies was crucial for diagnosis. The most common treatment was laparotomy with filter or strut removal plus duodenum repair. However, clinical conditions of patients must be considered and the endovascular technique with endograft deployment into inferior vena cava may be an alternative. Conclusion Duodenal perforation by an inferior vena cava filter is uncommon and in high-risk surgical patients endovascular repair must be considered.

  11. ACTITUDES Y COMPORTAMIENTO LECTOR: UNA APLICACIÓN DE LA TEORÍA DE LA CONDUCTA PLANEADA EN ESTUDIANTESDE NIVEL MEDIO SUPERIOR/ ATTITUDES AND READER BEHAVIOR: AN APPLICATION OF THE THEORY OF PLANNED BEHAVIOR OF STUDENTS IN UPPER INTERMEDIATE LEVEL

    Directory of Open Access Journals (Sweden)

    Serafín Joel Mercado Doménech***

    2011-02-01

    Full Text Available RESUMENEl objetivo de la presente investigación fue determinar la influencia de los componentes de la teoría de la conductaplaneada sobre indicadores del comportamiento lector en estudiantes mexicanos de nivel medio superior. Con una muestraconstituida por 305 estudiantes, los resultados de los análisis de ecuaciones estructurales mostraron índices que sugierenel poco ajuste del modelo como estructura explicativa general de los indicadores del comportamiento lector considerados eneste estudio. Con algunas adecuaciones basadas en las pruebas de multiplicadores de Lagrange y de Wald, un segundoanálisis indicó el ajuste satisfactorio de las variables del modelo de la conducta planeada a los indicadores del comportamientolector, siendo las principales variables explicativas la actitud en sus componentes afectivo y cognitivo. Los resultados sondiscutidos respecto a las implicaciones teóricas y consecuencias educacionales en relación al impacto que las actitudespueden tener en el fomento de esta actividad.ABSTRACTThe objective of this research was to determine the influence of the components of the theory of planned behavior onindicators of reading behavior in Mexican students high school level. With a sample consisting of 305 students, the resultsof structural equation modeling showed fit indices that suggest the inadequacy of the model as general explanatorystructure of the indicators of reading behavior in this study. With some adjustments based on the tests of Lagrangemultipliers and Wald, a second analysis indicated the adjustment of the variables of the model of planned behavior toindicators of reading behavior, the main explanatory variables attitude on affective and cognitive components. The resultsare discussed regarding the theoretical implications and educational implications regarding the impact that attitudes canhave in promoting this activity.

  12. Cultura organizacional y evaluación del desempeño del personal académico. Estudio de caso en una institución de educación superior pública mexicana

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    Irasema Linares Medina

    2013-01-01

    Full Text Available La investigación tiene como objetivo realizar el diagnóstico de cultura organizacional de una Institución de Educación Superior Pública, para identificar los elementos culturales que facilitan o dificultan el proceso de evaluación del desempeño del personal académico. El estudio se realizó a través del diseño de un modelo de diagnóstico de la cultura organizacional compuesto por nueve variables: Perfil de la organización; Comunicación; Medio Ambiente para la Mejora del Desempeño; Normatividad Interna; Identidad y Pertenencia; Estilo de dirección; Evaluación del desempeño; Motivación, Reconocimiento y Estímulos al desempeño; Capacitación y desarrollo. Los resultados se describen en términos de fortalezas y debilidades de las variables evaluadas, con base en lo cual se establecieron los elementos culturales que facilitan o limitan la evaluación del desempeño del personal académico en la Universidad de estudio. Los elementos que facilitan están asociados a los valores institucionales, las estructuras para la comunicación, las prácticas de inducción e involucramiento, las creencias y expectativas; mientras que los elementos que limitan son las competencias para la comunicación, las disposiciones físicas y administrativas, el énfasis en el control de la evaluación del desempeño y la ausencia de rituales para reconocer el desempeño.

  13. Leiomiossarcoma da veia cava inferior: relato de caso

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    Rafael Lemos Nascif

    2014-12-01

    Full Text Available Relatamos um caso de paciente do sexo feminino, 48 anos, com quadro clínico de dor abdominal de moderada intensidade e abaulamento do abdome. Ao exame físico constatou-se massa abdominal palpável. A tomografia computadorizada mostrou volumosa massa retroperitoneal, com realce heterogêneo e íntima relação com a veia cava inferior. Realizou-se ressecção em bloco da massa e do segmento invadido da veia cava. A histologia revelou leiomiossarcoma.

  14. Retrieval of gunther tulip vena cava filter with thrombosed hook and a leg incorporated into the vena cava wall.

    Science.gov (United States)

    Yamagami, Takuji; Yoshimatsu, Rika; Matsumoto, Tomohiro; Nishimura, Tsunehiko

    2009-01-01

    A Gunther tulip vena cava filter was implanted in a patient with pulmonary embolism from deep venous thrombosis. The filter became unnecessary after therapy. However, retrieval by the standard method employing a vascular sheath placed via the transjugular approach in combination with a snare device was impossible. A thrombus occupying the apical hook made it difficult to snare the hook, also one filter leg was incorporated into the inferior vena cava wall. Therefore we modified an existing method to withdraw the filter. As the first step, the filter cone was snared using the snare-over-guide wire loop technique, and the cephalad site of the filter was introduced into the sheath. Then, a 12-French sheath was advanced from the femoral vein and, using a pusher, the distal legs of the filter were pushed, which resulted the filter leg that was incorporated into the inferior vena cava wall became detached. Finally the filter was successfully retrieved.

  15. Bilateral inferior vena cava filter insertion in a patient with duplication of the infrarenal vena cava.

    LENUS (Irish Health Repository)

    Leong, S

    2010-06-19

    BACKGROUND: Inferior vena cava (IVC) filter insertion is a commonly performed procedure for indications such as recurrent pulmonary emboli or contraindication to anticoagulation. Symptomatic duplication of the IVC is exceedingly rare with only a handful of cases being described in the literature. AIM: We report an unusual case of a patient with symptomatic duplication of the IVC. RESULT: A 53-year-old woman presented at our hospital for resection of a cerebral metastasis from a non-small cell lung cancer following a recent diagnosis of bilateral lower limb deep venous thrombosis. This required perioperative reversal of anticoagulation and IVC filter insertion. Conventional venography performed during filter insertion documented the existence of a duplicated IVC. CONCLUSION: We present a case of a symptomatic duplication of the IVC requiring filter insertion. We review the developmental anatomy of the IVC along with the diagnostic findings and management strategies available.

  16. Angiojet thrombolysis and vena cava filter insertion in a case of a duplicated inferior vena cava

    Directory of Open Access Journals (Sweden)

    Stuart Blackwood

    2015-02-01

    Full Text Available Objectives: Duplication of the inferior vena cava (IVC complicates interventional procedures. This case report aims to shed light on this unusual anomaly and the preoperative considerations necessary when treatment of venous thromboembolism is undertaken. Methods: An IRB approved case report of a 58 year old woman presented emergently with right lower extremity phlegmasia due to extensive thrombosis of her right iliofemoral and infrarenal portion of her duplicated IVC. Results: The patient underwent IVC filter placement and rheolytic thrombectomy with thrombolysis using the Angiojet device followed by venoplasty and stenting of the iliofemoral system and right IVC. Complete symptomatic and radiographic resolution on duplex imaging was achieved at 1 year follow up. Conclusions: With adequate preoperative awareness of IVC anomalies and treatment options available satisfactory results can be achieved and complications minimized for this unique patient population.

  17. Implication of the inferior vena cava in the generation of reentry in the pectinate muscles

    Directory of Open Access Journals (Sweden)

    Andrés Paolo Castaño-Vélez

    2015-01-01

    Full Text Available La fibrilación auricular (FA es la más común de la arritmia cardiaca y su prevalencia aumenta con la edad. Las arritmias cardiacas más peligrosas y complejas son el resultado del fenómeno conocido como reentrada. Se ha planteado que los músculos pectíneos proveen un sustrato para la actividad reentrante durante la FA. En estudios experimentales la vena cava ha sido asociada con actividad ectópica que promueve la generación de reentradas. En este trabajo se incorporaron los cambios generados por el remodelado eléctrico a un modelo de potencial de acción (PA de miocito auricular, acoplado con un modelo tridimensional anatómicamente realista de aurícula humana con direccionamiento de fibras. Al aplicar un foco ectópico en la cercanía del ostium de la vena cava inferior se encuentra una relación entre esta actividad y la generación de reentradas en los músculos pectíneos. Una reentrada funcional que se repite en el tiempo es favorecida por la anatomía de los músculos pectíneos, las propiedades anisotrópicas y la distribución no uniforme en el tejido tridimensional. Se encontró la existencia de un camino de conducción preferencial que facilita la iniciación de reentradas afectando el esquema de conducción y la capacidad de inducción y desarrollo de arritmias.

  18. Inverted Nutcracker Syndrome: A Case of Persistent Hematuria and Pain in the Presence of a Left-Sided Inferior Vena Cava

    Directory of Open Access Journals (Sweden)

    Obi Ekwenna

    2011-01-01

    Full Text Available Nutcracker syndrome is described as the symptomatic compression of left renal vein between the aorta and the superior mesenteric artery, resulting in outflow congestion of the left kidney. We present the case of a 51-year-old male with a left-sided inferior vena cava, resulting in compression of the right renal vein by the superior mesenteric artery. Secondary to this anatomic anomaly, the patient experienced a many-year history of flank pain and intermittent gross hematuria. We have termed this unusual anatomic finding and its associated symptoms as the “inverted nutcracker syndrome”, and describe its successful management with nephrectomy and autotransplantation.

  19. Persistent Left Superior Vena Cava, The View of a Rare Case

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    H.Volkan Kara

    2013-10-01

    Full Text Available The glenohumeral joint is the most commonly dislocated joint in the human body. Anterior dislocatin is the most common type and posterior dislocations account for <1% of shoulder dislocations.  A 68-yearold woman was brought to the emergency department by ambulance  with shoulder pain following a fall from stairs. On local physical examination, there was severe pain on the left proximal humerus. The left arm was in internal rotation in the adducted position. Active and passive movements of the left shoulder were painful and limited. The neurovascular examination of the left upper extremity revealed no deficit. Radiographs of her left shoulder were performed and no significant pathology was identified in the left shoulder anteroposterior (AP X-ray (Figure 1. Axillary radiography could not be performed because of painful arm movements. Therefore, CT was performed to clarify any existing shoulder pathology (Figure 2. Closed reduction under conscious sedation was performed with longitudinal and lateral traction on the arm to protect the humeral head. Control CT was performed and this revealed that reduction had improved the shoulder (Figure 3. She was then treated with an arm sling and discharged with an outpatient orthopaedic control visit.

  20. Renal Angiomyolipoma Associated with Inferior Vena Cava Thrombus

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    Xavier Durand

    2009-01-01

    Full Text Available A 57-year-old woman was found to have an inferior vena cava involvement of a known sinusal angiomyolipoma incompletely resected three years beforehand. Intravascular extension into the IVC of angiomyolipoma has rarely been reported. We present a new case and reconsider the literature about this uncommon complication of a benign renal tumor.

  1. [Resection of leiomyosarcoma of the inferior vena cava].

    Science.gov (United States)

    Zotov, S P; Pyshkin, S A; Malyshev, M Iu; Safuanov, A Kh; Borovikov, D A; Siniukov, D M; Tereshin, O S; Panov, I O

    2013-01-01

    Experience in treatment of leiomyosarcoma of the retrohepatic segment of the inferior vena cava at any separately taken clinic is scarce. Given a rare nature of the pathology involved, whose diagnosis and management require joint participation of various-specialty physicians, we have considered it wise to present our own clinical case report.

  2. Prosthetic replacement of the infrahepatic inferior vena cava for leiomyosarcoma.

    Science.gov (United States)

    Illuminati, Giulio; Calio', Francesco G; D'Urso, Antonio; Giacobbi, Daniela; Papaspyropoulos, Vassilios; Ceccanei, Gianluca

    2006-09-01

    Resection of the infrahepatic inferior vena cava associated with prosthetic graft replacement for caval leiomyosarcoma is an acceptable procedure to obtain prolonged and good-quality survival. A consecutive sample clinical study with a mean follow-up of 40 months. The surgical department of an academic tertiary center and an affiliated secondary care center. Eleven patients, with a mean age of 51 years, who have primary leiomyosarcoma of the infrahepatic inferior vena cava. All of the patients underwent radical resection of the tumor en bloc with the affected segment of the vena cava. Reconstruction consisted of 10 cavocaval polytetrafluoroethylene grafts and 1 cavobiliac graft. An associated right nephrectomy was performed in 2 cases. The left renal vein was reimplanted in the graft in 3 cases. Cumulative disease-specific survival, disease-free survival, and graft patency rates expressed by standard life-table analysis. No patients died in the postoperative period. The cumulative (SE) disease-specific survival rate was 53% (21%) at 5 years. The cumulative (SE) disease-free survival rate was 44% (19%) at 5 years. The cumulative (SE) graft patency rate was 67% (22%) at 5 years. Radical resection followed by prosthetic graft reconstruction is a valuable method for treating primary leiomyosarcoma of the infrahepatic inferior vena cava.

  3. INFERIOR VENA-CAVA OBSTRUCTION AFTER ORTHOTOPIC LIVER-TRANSPLANTATION

    NARCIS (Netherlands)

    BROUWERS, MAM; DEJONG, KP; PEETERS, PMJG; BIJLEVELD, CMA; KLOMPMAKER, IJ; SLOOFF, MJH

    1994-01-01

    Post-operative inferior vena cava (IVC) obstruction is reported as an uncommon complication after orthotopic liver transplantation (OLT). We report 6 cases after 245 OLT's in the period between March '79 and December '92. Compression or torsion of the IVC or a technical problem were underlying cause

  4. A vertebrate assemblage of Las Curtiembres Formation (Upper Cretaceous of northwestern Argentina Una asociación de vertebrados de la Formación Las Curtiembres (Cretácico Superior del Noroeste de la Argentina

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    Agustín Scanferla

    2011-12-01

    Full Text Available We describe an association of fossil vertebrates from the Morales Member of the Las Curtiembres Formation (Campanian near Puente Morales, Salta Province, NW Argentina. The fossils include teleostean fishes, pipid frogs, pleurodiran turtles, mesoeucrocodylians, non-avian theropod dinosaurs, and enantiornithine birds. The vertebrate record is dominated by freshwater taxa. With the exception of pipid frogs, all taxa here described constitute new records for this sedimentary unit. Among them, the turtles are reported for the first time in the Cretaceous of northwestern Argentina (Salta Group. Additionally, the recently published small enantiornithine Intiornis inexpectatus enlarges the diversity of cretaceous birds from South America. Despite the fragmentary nature of the specimens, the information provided by this Late Cretaceous assemblage sheds new light on the composition of the continental vertebrate fauna in a paleontologically poorly known region of South America.Aquí describimos una asociación de fósiles de vertebrados proveniente del Miembro Morales de la Formación Las Curtiembres (Campaniano exhumada en la localidad de Puente Morales, provincia de Salta, Argentina. Esta asociación se encuentra conformada por peces teleósteos, anuros pipidos, tortugas pleurodiras, mesoeucrocodilidos, dinosaurios terópodos no avianos y aves Enantiornithes. Este registro de vertebrados se encuentra dominado por taxa de agua dulce. Con la excepción de los anuros pipidos, todos los demás taxa aquí descriptos constituyen nuevos registros para esta unidad sedimentaria. Entre ellos, el registro de tortugas resulta ser el primero para el Grupo Salta. Adicionalmente, el Enantiornithes Intiornis inexpectatus amplía la diversidad de aves cretácicas de América del Sur. Más allá de la naturaleza fragmentaria de algunos de los especímenes, la información proporcionada por esta asociación del Cretácico Superior aporta novedosa información acerca de la

  5. 'Aorta-in-aorta' sign on chest radiograph representing enlarged left superior intercostal and hemiazygos veins

    Energy Technology Data Exchange (ETDEWEB)

    Sung, Yon Mi; Lee, Kyung Soo; Kim, Tae Sung [School of Medicine, Sungkyunkwan Univ., Seoul (Korea, Republic of)

    2002-06-01

    We recently encountered a patient with membranous obstruction of the inferior vena cava in whom the left superior intercostal and hemiazygos veins were dilated. At chest radiography, the dilation simulated the presence of a second aortic knob and descending thoracic aorta lateral to the originals, and an 'aorta-in-aorta' appearance was thus created.

  6. Agenesia de veia cava inferior associada à trombose venosa profunda Agenesis of inferior vena cava associated with deep venous thrombosis

    Directory of Open Access Journals (Sweden)

    Clovis Luis Konopka

    2010-09-01

    Full Text Available A agenesia da veia cava inferior é uma anomalia congênita rara, que foi recentemente identificada como um importante fator de risco para o desenvolvimento e a recorrência de trombose venosa profunda de membros inferiores em jovens. O objetivo deste trabalho foi relatar o caso de uma paciente que apresentou trombose venosa profunda dois meses após a realização de cirurgia de varizes. A angiotomografia computadorizada demonstrou a presença de anomalia venosa complexa com ausência da veia cava inferior.The agenesis of the inferior vena cava is a rare congenital anomaly, which was recently identified as an important risk factor for the development and recurrence of deep venous thrombosis especially in young people. The goal of this work was to report the case of a patient who presented deep venous thrombosis approximately two months after varicose vein surgery. The computerized angiotomography demonstrated the presence of a complex venous anomaly with absence of the inferior vena cava.

  7. Motivos que contribuem para indivíduos de uma escola de nível superior tornarem-se ou não tabagistas Motivación para fumar en la comunidad de una escuela de enfermería de educación superior Motivation for smoking in the community of a high education nursing school

    Directory of Open Access Journals (Sweden)

    Stephani Amanda Lukasewicz Ferreira

    2011-06-01

    Full Text Available Estudo transversal que objetivou identificar motivos que contribuem para indivíduos de uma escola de nível superior tornarem-se ou não tabagistas. Os dados foram coletados em 2009, em questionários específicos, analisados estatisticamente. A amostra foi de 426 sujeitos, destes 21 (5% fumantes, 26 (6,1% ex-fumantes e 376 (88,9% não-fumantes. A principal motivação dos fumantes para cessar o tabagismo são os problemas de saúde advindos do cigarro e dentre os fatores que dificultam esse processo está a dependência à nicotina. Ex-fumantes dizem que questões emocionais e o prazer causado pelo cigarro podem fazê-los voltar a fumar, e se mantém em abstinência por estarem determinados a não querer fumar. Não-fumantes relatam não gostarem do cigarro, seu cheiro e fumaça. Os motivos para ser ou não tabagista podem subsidiar a realização de ações de educação em saúde, com vistas a coibir o início e promover a sua cessação.Estudio transversal con objetivo de identificar razones que contribuyen a individuos de una escuela de enseñanza superior se convierten en fumadores o no. Los datos fueron recolectados en 2009, en cuestionarios, análisis estadístico. La muestra fue de 426 sujetos, de estos 21(5% fumadores, 26(6,1% ex-fumadores y 376(88,9% no-fumadores. La principal motivación de fumadores a dejar de fumar son problemas de salud derivados del cigarrillo y entre los factores que obstaculizan este proceso es la dependencia de la nicotina. Ex-fumadores dicen que cuestiones emocional y placer causado por lo cigarrillo puede hacer que empiecen a fumar de nuevo, y mantiene la abstinencia ya que están decididos a no querer fumar. Los no-fumadores reportan que no les gusta el humo y olor del cigarrillo. Las razones de ser o no fumador puede apoyar la aplicación de acciones de educación para la salud, destinado a frenar el inicio y promover su cese.Cross-sectional study that aimed to identify motives that contribute to people

  8. Laparoscopic adrenalectomy in a case of congenital duplication of the inferior vena cava. Case report.

    Science.gov (United States)

    Pisano, Giuseppe; Calò, Pietro Giorgio; Piras, Stefano; Pisano, Umberto; Nicolosi, Angelo

    2013-07-25

    L’eventualità di un’emorragia intraoperatoria è la complicanza più temuta nel corso di una surrenectomia laparoscopica. Tale rischio diventa ancora più importante nel caso in cui siano presenti anomalie anatomiche rappresentate da duplicità della Vena Cava Inferiore (VCI) e da anomali confluenze delle vene surrenali. Tale riscontro, osservato nel caso descritto, ha fornito lo spunto per uno studio sull’incidenza di dette anomalie e sulle metodiche utili a prevenire la complicanza emorragica. Una donna di 39 anni è giunta alla nostra osservazione a causa di una neoformazione non funzionante del surrene destro andata incontro ad un lento ma progressivo accrescimento volumetrico. Tale neoformazione era stata riconosciuta a distanza di tempo nel corso di controlli clinici e strumentali praticati per una Poliposi Familiare del Colon, sottoposta in altra sede a Proctocolectomia Restorativa circa 8 anni prima. Già in quell’epoca era stata documentata una duplicità congenita della VCI associata ad altre anomalie vascolari e viscerali. Nel corso della surrenectomia laparoscopica, dopo aver clippato e sezionato la vena surrenalica alla sua confluenza cavale, è stata riconosciuta una seconda vena con sbocco nella vena renale destra; anch’essa trattata in modo analogo e con esito favorevole. La presenza di una duplice VCI, pur essendo un reperto piuttosto raro, è divenuta di più frequente riscontro con la diffusione di tecniche di diagnostica per immagini sempre più elaborate, in particolare l’AngioTC. La presenza di tali anomalie può rendere problematiche alcune manovre di radiologia interventistica quali il posizionamento di un filtro cavale o il cateterismo selettivo di una vena surrenalica. È però in ambito chirurgico che la duplicità della VCI può causare i maggiori inconvenienti, rappresentati da un possibile danno vascolare. La maggior parte degli Autori ritiene in proposito indispensabile un valido studio per immagini preoperatorio quale

  9. [Mitral surgery by superior biatrial septotomy].

    Science.gov (United States)

    Saade, A; Delepine, G; Lemaitre, C; Baehrel, B

    1995-01-01

    The superior biatrial septotomy approach consists of two semicircular right atrial and septal incisions joined at the superior end of the interatrial septum and extended across the dome of the left atrium, allowing exposure of the mitral valve by reflecting the ventricular side using stay sutures. From 1991 to 1993, 81 patients underwent mitral valve surgery by this technic. Mitral valve operation was combined with other cardiac procedures in 30 patients (37%) and was performed as a second operation in 21 patients (25.9%). Duration of cardiopulmonary bypass and aortic occlusion was not significantly different from that of patients operated via a conventional left atrial approach. The five hospital deaths (6.2%) were not related to this operative approach. Only 2 patients (3.3%) with preoperative in sinus rythm were discharged in atrial fibrillation after operation. In one patient (1.6%), atrioventricular block appeared at late follow-up. There were no cases of bleeding, atrioventricular nodal dysfunction or intra-atrial shunting related to the approach. This approach provides excellent exposure of the mitral valve even in unfavorable situations such as a small left atrium, dense adhesions from previous procedures or a previously implanted aortic prosthesis, without damage to various cardiac structures due to excessive traction. No retractor or vena cava repair are required. These data support a wide application of the superior biatrial septotomy approach in mitral valve surgery.

  10. Double vena cava inferior:A report of three cases

    Institute of Scientific and Technical Information of China (English)

    Isin Ureyen; Zeynep Kestel; Elif Gulsah Sahin; Alper Karalok; Taner Turan; Nurettin Boran; Gokhan Tulunay

    2013-01-01

    Congenital anomalies of the vena cava inferior (VCI) develop as a result of the persistence of the embryonic venous system. The majority of cases is clinically silent and is diagnosed in routine dissection studies, in retroperitoneal surgeries, or through imaging for other reasons. We report three cases with a double VCI. We outline our operative policy, summarize the embryological development of the VCI and present these cases as a reminder of this rare anatomical variation.

  11. Modeling Flow Past a Tilted Vena Cava Filter

    Energy Technology Data Exchange (ETDEWEB)

    Singer, M A; Wang, S L

    2009-06-29

    Inferior vena cava filters are medical devices used to prevent pulmonary embolism (PE) from deep vein thrombosis. In particular, retrievable filters are well-suited for patients who are unresponsive to anticoagulation therapy and whose risk of PE decreased with time. The goal of this work is to use computational fluid dynamics to evaluate the flow past an unoccluded and partially occluded Celect inferior vena cava filter. In particular, the hemodynamic response to thrombus volume and filter tilt is examined, and the results are compared with flow conditions that are known to be thrombogenic. A computer model of the filter inside a model vena cava is constructed using high resolution digital photographs and methods of computer aided design. The models are parameterized using the Overture software framework, and a collection of overlapping grids is constructed to discretize the flow domain. The incompressible Navier-Stokes equations are solved, and the characteristics of the flow (i.e., velocity contours and wall shear stresses) are computed. The volume of stagnant and recirculating flow increases with thrombus volume. In addition, as the filter increases tilt, the cava wall adjacent to the tilted filter is subjected to low velocity flow that gives rise to regions of low wall shear stress. The results demonstrate the ease of IVC filter modeling with the Overture software framework. Flow conditions caused by the tilted Celect filter may elevate the risk of intrafilter thrombosis and facilitate vascular remodeling. This latter condition also increases the risk of penetration and potential incorporation of the hook of the filter into the vena caval wall, thereby complicating filter retrieval. Consequently, severe tilt at the time of filter deployment may warrant early clinical intervention.

  12. [Surgical treatment of leiomyosarcoma of the inferior vena cava].

    Science.gov (United States)

    Zotov, S P; Panov, I O; Tereshin, O S; Vazhenin, A V

    2012-01-01

    The presented review of the literature is generalization of the currently existing data of foreign and Russian literature concerning treatment of a rare non-organic retroperitoneal tumour from smooth-muscle tissue, i. e., leiomyosarcoma of the inferior vena cava. The authors also formulate and lay down the basic principles of surgical interventions depending on the scope and level of the lesion, as well statistical analysis of the outcomes of surgical management of the this severely ill patient cohort.

  13. In vivo evaluation of a new vena cava filter

    Directory of Open Access Journals (Sweden)

    Gilberto do Nascimento Galego

    2016-01-01

    Full Text Available Abstract Background Pulmonary embolism is an important cause of cardiovascular death. Inferior vena cava filters have been shown to be effective for prevention of this condition. Objectives To determine the safety, performance and efficacy of a new inferior vena cava filter in an ovine model. Methods BKone1 filters are self-centering with over-the-wire deployment, have three filtering regions and are made from nickel-titanium alloy. Eight of these filters were implanted in 8 sheep. The sheep were divided into 4 groups of two animals (A and B and the number of clots injected differed by group. Two clots were injected in group 2, four in group 3, eight in group 4 and zero clots in group 1. A animals underwent euthanasia soon after the procedure and B animals were observed for 30 days and then euthanized after a control cavography. All inferior vena cavas were processed for histological examination. Clots were prepared in a metal mold, sectioned and then radiopaque markers were inserted. Clot capture was analyzed by identifying the radiopaque marker on fluoroscopy. Results No clot migration was observed during follow-up. Control cavographies showed patent inferior vena cavas. Pathological examination indicated little inflammatory tissue response. All clots were captured in the condition with 2 clots, only one clot was missed in the group injected with 4 clots and in the condition of 8 clots, they were partly captured. Conclusions The filters were deployed safely. There was a reduction in efficacy as the number of blood clots increased.

  14. Spiral CT in aplasia of the pre-renal inferior vena cava as a cause of phlebothrombosis from the femoral veins to the inferior vena cava; Spiral-CT einer Aplasie der praerenalen Vena cava inferior als Ursache einer Phlebothrombose von den Oberschenkelvenen bis in die Vena cava inferior

    Energy Technology Data Exchange (ETDEWEB)

    Schweiger, U. [Strahlenklinik und Poliklinik, Universitaetsklinikum Rudolf Virchow, Freie Univ. Berlin (Germany); Schedel, H. [Strahlenklinik und Poliklinik, Universitaetsklinikum Rudolf Virchow, Freie Univ. Berlin (Germany); Thiede, U. [Deutsches Herzzentrum Berlin (Germany). Arbeitsgruppe Digitale Bildbearbeitung; Felix, R. [Strahlenklinik und Poliklinik, Universitaetsklinikum Rudolf Virchow, Freie Univ. Berlin (Germany)

    1994-12-31

    The case report focuses on the computed tomography of the thrombotic okklusion of the inferior vena cava, venae iliacae and femorales communes due to congenital interruption of the prerenal inferior vena cava. The embryology of the abnormality was discussed. (orig.) [Deutsch] Anhand einer Fallstudie wurden die Moeglichkeiten der computertomographischen Diagnostik bei einer durch Teilplasie der `praerenalen` Vena cava inferior hervorgerufenen Thrombose der Vv. femorales superficiales et profundae, der grossen Beckenvenen und der Vena cava inferior erlaeutert. In der Diskussion wurde auf die Embryologie der Missbildung eingegangen. (orig.)

  15. Creation of the permanent inferior vena cava filter for prevention of pulmonary artery embolism

    Directory of Open Access Journals (Sweden)

    Yа.O. Povar

    2016-05-01

    Full Text Available The aim of the study was to create a new permanent cava filter to improve functional capacities of the construction and achieve high clinical parameters. A new geometry of the permanent inferior vena cava filter was presented which has high blood clot-capturing ability, does not cause thrombus fragmentation, makes migration impossible. The inferior vena cava filter does not injure the vessel wall and preserves integrity under long-term use. The inferior vena cava filter installation is safe and controllable, the filter self-positioning and reposition are possible, the delivery system size is 6F, the blood flow changing is minimal.

  16. El uso de las presentaciones digitales en la educación superior: una reflexión sobre la práctica / Use of digital presentations in higher education: a reflexion on practice

    OpenAIRE

    Maroto Marín, Orlando

    2011-01-01

    Resumen: El uso de las presentaciones digitales en la enseñanza universitaria se han extendido ampliamente. En esta reseña temática se realiza una reflexión sobre la pertinencia de su aplicación; además se revisan algunos detalles de su producción. Se recalca la importancia de tomar en cuenta los detalles de las presentaciones para así lograr los objetivos educativos. El uso de un medio audiovisual y digital debería favorecer el establecimiento de una comunicación interactiva entre docente...

  17. El aprendizaje-servicio en la enseñanza superior: una aplicación en el ámbito de la educación física

    OpenAIRE

    Gil Gómez, Jesús

    2012-01-01

    El Aprendizaje-Servicio es una metodología experiencial que tiene un doble objetivo: procurar que el alumnado aprenda contenidos curriculares a la vez que presta un servicio a la sociedad. La tesis indaga en el impacto que tiene su uso en alumnado universitario. Desde este planteamiento, en esta tesis se ha realizado una aplicación relacionada con la innovación educativa en el ámbito de la didáctica de la Educación Física, concretamente dentro del campo de la Anatomía, la Artrología y la Fisi...

  18. Efectividad de la terapia de movimiento inducido por restricción en la funcionalidad de la extremidad superior en pacientes con hemiplejia. Una revisión sistemática

    OpenAIRE

    Camus Valdeolivas, Irene

    2015-01-01

    RESUMEN: Introducción: la técnica de inducción de movimiento por restricción (TIMR) es una técnica actual de rehabilitación que consiste en la restricción de movimiento de la extremidad menos afecta en pacientes con accidente cerebro vascular (ACV) y el entrenamiento mediante actividades funcionales de la extremidad parética, basándonos en la neuroplasticidad cortical existente tras una lesión cerebral. Objetivo: recoger evidencia científica sobre la terapia de inducción de movimiento por...

  19. Sobredentadura total superior implantosoportada

    Directory of Open Access Journals (Sweden)

    Luis Orlando Rodríguez García

    2010-06-01

    Full Text Available Se presenta un caso de un paciente desdentado total superior, rehabilitado en la consulta de implantología de la Clínica "Pedro Ortiz" del municipio Habana del Este en Ciudad de La Habana, Cuba, en el año 2009, mediante prótesis sobre implantes osteointegrados, técnica que se ha incorporado a la práctica estomatológica en Cuba como alternativa al tratamiento convencional en los pacientes desdentados totales. Se siguió un protocolo que comprendió una fase quirúrgica, procedimiento con o sin realización de colgajo y carga precoz o inmediata. Se presenta un paciente masculino de 56 años de edad, que acudió a la consulta multidisciplinaria, preocupado, porque se le habían elaborado tres prótesis en los últimos dos años y ninguna reunía los requisitos de retención que él necesitaba para sentirse seguro y cómodo con las mismas. El resultado final fue la satisfacción total del paciente, con el mejoramiento de la calidad estética y funcional.

  20. La calidad en la educación superior a través de indicadores sintéticos. Una aplicación para el Sistema Universitario Español utilizando Análisis Envolvente de Datos

    OpenAIRE

    Rodríguez González, David

    2013-01-01

    La preocupación por la calidad se ha convertido en objetivo prioritario para todo tipo de organizaciones, y la universidad no es una excepción. En Europa las universidades están llevando a cabo procesos de adaptación a las nuevas realidades del siglo XXI y entre estos procesos destaca la creación del Espacio Europeo de Educación Superior (EEES). Uno de los grandes objetivos de este proceso es la creación de sistemas de garantía de la calidad que aseguren niveles de excelenci...

  1. Evaluación frente a calificación en el nuevo Espacio Europeo de Educación Superior (EEES, una reflexión ético-crítica

    Directory of Open Access Journals (Sweden)

    Full Text Available El proceso de Convergencia Europea es un cambio que afecta a la mayoría de los estados europeos, introduciendo elementos que tienden a armonizar sus políticas. En materia de educación las modificaciones de los sistemas educativos son significativas, y esencialmente en los estudios universitarios. Inmersos en este proceso, el empleo de nuevas metodologías educativas en Enfermería se desarrolla a través de experiencias piloto en distintas universidades europeas. A través de un estudio de revisión, se reflexiona sobre una de estas experiencias desarrolladas en la Universidad de Almería (España, atendiendo esencialmente a la objetividad y el empleo del examen como metodología exclusiva de evaluación del alumno. Tras una revisión exhaustiva sobre el tema, y ante la inespecifidad de instrumentos que midan fiablemente conocimientos, pero sobre todo actitudes y habilidades; se plantea una revisión ético-crítica del concepto de evaluación desde una racionalidad práctica que se separa de los aspectos positivistas y utilitaristas.

  2. Deep venous thrombosis in a young woman with hypoplastic inferior vena cava.

    Science.gov (United States)

    Lavens, Matthias; Moors, Boudewijn; Thomis, Sarah

    2014-05-01

    We present a 33-year-old woman with deep venous thrombosis of the left iliac vein and the left lower limb. A computed tomography scan of her abdomen revealed a hypoplastic inferior vena cava and agenesis of the right kidney. Congenital anomalies of the inferior vena cava are uncommon and are sometimes an unrecognized cause of deep venous thrombosis.

  3. Leiomioma benigno metastatizante de veia cava inferior: rara complicação tardia de histerectomia Benign metastasizing leiomyoma of inferior vena cava: a rare condition following hysterectomy

    Directory of Open Access Journals (Sweden)

    Marcos Filgueiras

    2008-08-01

    Full Text Available Large vessel tumors diagnosis is usually difficult. Benign metastasizing leiomyoma is a rare condition occurring inside peripheral vessels. There are few publications about this tumor inside inferior vena cava. A 54 years old female patient is presented with a previous hysterectomy for myomas. She complained of no specific symptoms 18 months after surgery. Computer tomography revealed a 7.5 x 3.5 x 4.0 cm mass at inferior vena cava and right psoas muscle. After surgical management and immunohistochemical screening biopsy, the diagnosis was benign metastasizing leiomyoma of inferior vena cava. The patient recovery was uneventful. Benign metastasizing leiomyoma of inferior vena cava is a very rare condition, and must be suspected in patients with primary leiomyosarcoma, especially in women previously submitted to hysterectomy for leiomyomatosis.

  4. Evaluación del cumplimiento del control interno de un departamento de registro de una entidad de estudios superiores basado en técnicas de auditoría interna

    OpenAIRE

    Cambier Marmolejos, Enrique Ernesto

    2015-01-01

    Las Instituciones de Educación Superior durante las últimas décadas, han modificando su rol social y su modelo académico-educativo. Estos cambios han permitido adecuar las estructuras organizacionales de las Universidades públicas y privadas, a alcanzar el cumplimiento de los objetivos institucionales y asegurar su funcionamiento de acuerdo a leyes, normas, reglamentos y políticas internas vigentes. Las evaluaciones internas, como iniciativa de las universidades se promueven para determinar s...

  5. Symptomatic caval penetration by a Celect inferior vena cava filter

    Energy Technology Data Exchange (ETDEWEB)

    Bogue, Conor O.; John, Philip R.; Connolly, Bairbre L.; Rea, David J.; Amaral, Joao G. [Hospital for Sick Children and University of Toronto, Division of Image Guided Therapy, Department of Diagnostic Imaging, Toronto, ON (Canada)

    2009-10-15

    We report a case of penetration of the inferior vena cava (IVC) by all four primary struts of a Celect caval filter in a 17-year-old girl with Klippel-Trenaunay syndrome. The girl presented with acute lower abdominal and right leg pain 17 days after filter insertion. An abdominal radiograph demonstrated that the filter had moved caudally and that the primary struts had splayed considerably since insertion. Contrast-enhanced CT confirmed that all four primary struts had penetrated the IVC wall. There was a small amount of retroperitoneal hemorrhage. The surrounding vessels and viscera were intact. The filter was subsequently retrieved without complication. (orig.)

  6. Duplicate inferior vena cava filters: more is not always better.

    Science.gov (United States)

    Katyal, Anup; Javed, Muhammad Ali

    2016-01-01

    Duplication of the inferior vena cava (IVC) has been reported in literature. This achieves clinical significance in the setting of lower extremity venous thromboembolism with a contraindication for anticoagulation. We describe a case of lower extremity deep vein thrombosis with duplicate IVC. Anticoagulation was contraindicated in this case leading to successful treatment with double IVC filters. We conducted a PubMed search for all current English language published literature, where filters were placed in the presence of duplicate IVC. We suggest that patients with deep vein thrombosis should have an accurate assessment of venous anatomy before IVC filter placement. Duplication of IVC, although rare, should be considered as this has management implications.

  7. Renal transplantation in a child with thrombosed inferior vena cava

    Directory of Open Access Journals (Sweden)

    Surjeet Kumar

    2014-01-01

    Full Text Available The external iliac vein is commonly used in renal transplantation for vascular anastomosis of the allograft renal vein. However, there are rare instances when the transplant surgeon may encounter thrombosis of the ilio-caval vein during surgery, making renal transplantation a challenge. Often, these patients are considered unsuitable for renal transplantation. We report a case of thrombosis of the inferior vena cava in an asymptomatic pediatric patient in whom the splenic vein was used, at transplantation, for venous drainage. This case highlights that pre-operative Doppler screening should be performed in all potential renal transplant recipients.

  8. Una evaluación geográfica de la política de educación media Superior de la Ciudad de México

    Directory of Open Access Journals (Sweden)

    Laura Cervantes-Salcido

    2007-01-01

    Full Text Available En este trabajo presentamos una evaluación geográfica de la política de las preparatorias creadas y administradas por el gobierno de la ciudad de México. La revisión teórica y evaluación estadística realizadas nos ha permitido construir relaciones explicativas útiles entre varios conceptos de teorías urbanas provenientes de escuelas divergentes, y de disciplinas diferentes, y a la vez hacer una demostración empírica del incumplimiento de uno de los objetivos geográficos de esta política de la ciudad de México.

  9. UNA SECUENCIA DIDÁCTICA COMPETENCIAL UTILIZANDO LAS TIC PARA LA AMPLIACIÓN DE SABERES SOBRE EL SEXO Y LA REPRODUCCIÓN HUMANA EN LA EDUCACIÓN SUPERIOR

    OpenAIRE

    Patricia Morawicki

    2016-01-01

    En este artículo se describe una secuencia didáctica con utilización de las TIC para la enseñanza de un contenido de sexualidad, en el espacio curricular Taller de Educación Sexual Integral (ESI) ubicado en cuarto año del Profesorado para Educación Primaria en la Provincia de Misiones, Argentina.

  10. UNA SECUENCIA DIDÁCTICA COMPETENCIAL UTILIZANDO LAS TIC PARA LA AMPLIACIÓN DE SABERES SOBRE EL SEXO Y LA REPRODUCCIÓN HUMANA EN LA EDUCACIÓN SUPERIOR

    Directory of Open Access Journals (Sweden)

    Patricia Morawicki

    2016-10-01

    Full Text Available En este artículo se describe una secuencia didáctica con utilización de las TIC para la enseñanza de un contenido de sexualidad, en el espacio curricular Taller de Educación Sexual Integral (ESI ubicado en cuarto año del Profesorado para Educación Primaria en la Provincia de Misiones, Argentina.

  11. Una propuesta formativa centrada en la cooperación, la gestión del conocimiento y la alfabetización multimodal del aluminado en enseñanza superior

    Directory of Open Access Journals (Sweden)

    Laura Rayón Rumayor

    2011-03-01

    Full Text Available Fruto de una propuesta de innovación, financiada por el Vicerrectorado de Comunicación y Planificación de la UAH en el curso 2007/08, surge la propuesta que presentamos en este documento, tras tres años de aplicación en la Licenciatura de psicopedagogía, en una asignatura troncal. Se han puesto en marcha tres estrategias formativas vinculadas a la creación y gestión del conocimiento por parte del alumnado de un modo cooperativo, quien además individualmente tiene la posibilidad de autorregular su aprendizaje. A través de una estructura cooperativa en el aula, vertebrada en torno a tres estrategias fundamentales: el relato fotográfico, las historias de vida y el diario personal de aprendizaje, vamos configurando un modelo formativo a lo largo de tres cursos académicos que compagina la cooperación con la autonomía y autorregulación del propio aprendizaje, así como la alfabetización multimodal de los estudiantes, quienes desempeñan un rol activo en la creación y gestión del conocimiento mediante la utilización de la fotografía para comunicar las ideas y el conocimiento que van adquiriendo. En el trabajo profundizamos en la estrategia que denominamos “relato fotográfico”, que se ha revelado como una estrategia útil para que el alumnado cree y gestione el conocimiento y lo pueda compartir con el resto de sus compañeros; productos que tienen como soporte los blogs grupales como espacio comunicativo entre los estudiantes.

  12. Different cava reconstruction techniques in liver transplantation:piggyback versus cava resection

    Institute of Scientific and Technical Information of China (English)

    Volker Schmitz; Wenzel Schoening; Ines Jelkmann; Brigitta Globke; Andreas Pascher; Marcus Bahra; Peter Neuhaus and Gero Puhl

    2014-01-01

    BACKGROUND: Originally, cava reconstruction (CR) in liver transplantation meant complete resection and reinsertion of the donor cava. Alternatively, preservation of the recipients inferior  vena  cava  (IVC)  with  side-to-side  anastomosis (known  as  "piggyback")  can  be  performed.  Here,  partial clamping maintains blood lfow of the IVC, which may improve cardiovascular stability, reduce blood loss and stabilize kidney function. The aim of this study was to compare both techniques with particular focus on kidney function. METHODS: A series of 414 patients who had had adult liver transplantations  (2006-2009)  were  included.  Among  them, 176  (42.5%)  patients  had  piggyback  and  238  had  classical CR  operation,  112  (27.1%)  of  the  patients  underwent  CR accompanied with veno-venous bypass (CR-B) and 126 (30.4%) without a bypass. The choice of either technique was based on the surgeons' individual preference. Kidney function [serum creatinine, calculated glomerular ifltration rate (GFR), RIFLE stages] was assessed over 14 days. RESULTS: Lab-MELD scores were signiifcantly higher in CR-B (22.5±11.0) than in CR (17.3±9.0) and piggyback (18.8±10.0) (P=0.008). Unexpectedly, the incidences of arterial stenoses (P=0.045)  and  biliary  leaks  (P=0.042)  were  signiifcantly increased in piggyback. Preoperative serum creatinine levels were the highest in CR-B [1.45±1.17 vs 1.25±0.85 (piggyback) and 1.13±0.60 mg/dL (CR); P=0.033]. Although a worsening of postoperative kidney function was observed among all groups,

  13. Una revisión teórica de la calidad de la educación superior en el contexto colombiano Uma revisão teórica da qualidade da educação superior no contexto colombiano A Theoretical Review of the Quality of Higher Education in the Colombian Context

    Directory of Open Access Journals (Sweden)

    Germán Albeiro Castaño-Duque

    2012-08-01

    Full Text Available En Colombia, la calidad de la educación superior depende del entorno de cada institución y, por tanto, se percibe diferente. En consecuencia, es preciso es analizar qué se entiende por ésta, cuáles son las tendencias y retos que enfrenta en la actualidad, incluyendo la discusión y controversia que han generado las reformas educativas que se han presentado en Latinoamérica, para enmarcar las políticas de calidad en la educación superior dentro de la equidad y pertinencia social.Na Colômbia, a qualidade da educação superior depende do contexto de cada instituição e, portanto, é percebida diferente. Consequentemente, é necessário analisar o que se entende por esta, quais são as tendências e desafios que enfrenta na atualidade, incluindo a discussão e controvérsia que vêm gerando as reformas educativas que se apresentam na América Latina para determinar as políticas de qualidade na educação superior dentro da equidade e pertinência social.In Colombia, the quality of higher education depends on the environment in each institution and, therefore, is perceived differently. Accordingly, it is necessary to analyze what this means, what the trends are and the challenges now being faced, including the discussion and controversy generated by the educational reforms that have taken place in Latin America. The goal, in this respect, is to frame policies on the quality of higher education from the standpoint of equity and social relevance.

  14. Advanced Techniques for Removal of Retrievable Inferior Vena Cava Filters

    Energy Technology Data Exchange (ETDEWEB)

    Iliescu, Bogdan; Haskal, Ziv J., E-mail: ziv2@mac.com [University of Maryland School of Medicine, Division of Vascular and Interventional Radiology (United States)

    2012-08-15

    Inferior vena cava (IVC) filters have proven valuable for the prevention of primary or recurrent pulmonary embolism in selected patients with or at high risk for venous thromboembolic disease. Their use has become commonplace, and the numbers implanted increase annually. During the last 3 years, in the United States, the percentage of annually placed optional filters, i.e., filters than can remain as permanent filters or potentially be retrieved, has consistently exceeded that of permanent filters. In parallel, the complications of long- or short-term filtration have become increasingly evident to physicians, regulatory agencies, and the public. Most filter removals are uneventful, with a high degree of success. When routine filter-retrieval techniques prove unsuccessful, progressively more advanced tools and skill sets must be used to enhance filter-retrieval success. These techniques should be used with caution to avoid damage to the filter or cava during IVC retrieval. This review describes the complex techniques for filter retrieval, including use of additional snares, guidewires, angioplasty balloons, and mechanical and thermal approaches as well as illustrates their specific application.

  15. Tecnologías de la información y la comunicación en la enseñanza superior. Análisis de una experiencia de implementación en la Universidad de Murcia

    OpenAIRE

    Castañeda Quintero, Linda Johanna

    2005-01-01

    La memoria que presentamos a continuación es fruto del seguimiento realizado en el marco del proyecto “Campus Virtual” desarrollado a lo largo de dos años – entre los cursos 2002-2003 y 2003-2004 por el Instituto de Ciencias de la Educación de la Universidad de Murcia, y especialmente por la Unidad de Formación a Distancia y Recursos didácticos del mismo. Dicho proyecto es una iniciativa de formación del profesorado universitario para el uso e implementación de Nuevas ...

  16. EL INTÉRPRETE: TEMA Y VARIACIONES. UNA CONCEPCIÓN FORMATIVA EN CONSTRUCCIÓN DESDE EL PROYECTO "HACIA UN MODELO ALTERNATIVO PARA LA EDUCACIÓN MUSICAL DE JÓVENES Y ADULTOS A NIVEL SUPERIOR"

    OpenAIRE

    Ligia Ivette Asprilla

    2003-01-01

    La complejidad, diversidad y riqueza del campo musical que evade respuestas absolutas invita, al mismo tiempo, a la actividad reflexiva, imaginativa y creadora. El presente artículo intenta desarrollar la concepción de educación musical que se gesta desde el proyecto de investigación que actualmente se adelanta en la Facultad de Estudios Musicales de la Universidad Central1 . Aunque el Proyecto estudia la pedagogía de las áreas teórico-musical e instrumental, este texto, organizado como una c...

  17. El uso de las presentaciones digitales en la educación superior: una reflexión sobre la práctica / Use of digital presentations in higher education: a reflexion on practice

    Directory of Open Access Journals (Sweden)

    Maroto Marín, Orlando

    2008-08-01

    Full Text Available Resumen: El uso de las presentaciones digitales en la enseñanza universitaria se han extendido ampliamente. En esta reseña temática se realiza una reflexión sobre la pertinencia de su aplicación; además se revisan algunos detalles de su producción. Se recalca la importancia de tomar en cuenta los detalles de las presentaciones para así lograr los objetivos educativos. El uso de un medio audiovisual y digital debería favorecer el establecimiento de una comunicación interactiva entre docentes y estudiantes. Con estas notas se espera aportar ideas sobre las presentaciones digitales especialmente para el personal docente que inicia sus labores dentro de la universidad.Abstract: The use of slide show presentation in higher education has been extending wider through universities. This article is a reflection about its use and pertinence and a review of some details on its production. This research reinforces the importance of review the slide show details to achieve the educational goals. In the classroom is established communication between professor and students and vice versa. The audiovisual media must reinforce communication skills and not only an informational reception. These notes could be helpful for the newest teachers, those who are starting their teaching career into the university, finding in their beginning the way to eliminate some actions that limits their creative capacity to teach.

  18. INVESTIGACIÓN ETNOGRÁFICA EN AMBIENTES DIGITALES: UNA EXPERIENCIA METODOLÓGICA EN DOS PROYECTOS DE DOCTORADO EN EL CONTEXTO DE LA EDUCACIÓN SUPERIOR EN COLOMBIA

    Directory of Open Access Journals (Sweden)

    Julio Ernesto Rojas Mesa

    2008-01-01

    Full Text Available Nos abocamos a la necesidad de pensar, con más intensidad y variedad, la relación virtualidad–educación su - perior en Colombia. Los debates al respecto son numerosos, las posiciones teóricas son variadas, los lugares desde los cuales se analiza la situación son igualmente múltiples. Las dos investigaciones presentadas aquí, pretenden establecer un análisis de tal relación, localizando dicho análisis en varias instituciones de educación superior en Colombia. La primera investigación, titulada Educación virtual: del discurso a las prácticas pedagó - gicas. Un estudio etnográfico en seis instituciones de Educación Superior en Colombia , pretende identificar sobre la base del estudio etnográfico, la interpretación de la relación entre el mito/discurso, el rito/práctica y el territorio/escenario, que se construyen en las instituciones educativas seleccionadas para el estudio en torno a la educación virtual. La segunda investigación, titulada: Fundamentación teórica de la educación virtual en la educación superior en Colombia, se desarrolla sobre el enfoque semiótico de búsqueda del estatuto teórico de la educación virtual, teniendo en cuenta cuatro vectores de análisis: lo filosófico, lo comunicativo, lo peda - gógico y lo tecnológico. Lo anterior obliga a pensar el estatuto de la investigación en Ciencias Sociales, y sus transformaciones metodológico–académicas contemporáneas. La etnografía da cuenta de dicho proceso en su propia transformación metodológica.

  19. El trabajo cooperativo en la docencia de una maestría en Comunicación social. La adaptación al Espacio Europeo de Educación Superior

    Directory of Open Access Journals (Sweden)

    María Cristina Pinto

    2010-01-01

    Full Text Available Dentro del programa de Innovación y mejora de la calidad docente, la Universidad Complutense de Madrid aprobó el Proyecto de innovación educativa con el fin de introducir técnicas de trabajo cooperativo en la docencia universitaria. Su desarrollo y resultados se describen en el presente documento. Los alcances, utilidades y limitaciones de la experiencia acá presentada, así como la metodología propuesta, se consideran relevantes al momento de analizar el conjunto de metodologías de enseñanza y aprendizaje propuestas en el marco de transformaciones del Espacio Europeo de Educación Superior (eees.

  20. La calidad de la enseñanza en educación superior ¿Qué es una buena enseñanza en este nivel educativo?

    OpenAIRE

    Jesús Carlos Guzmán

    2011-01-01

    El objetivo de este artículo es analizar los estilos de aprendizaje y prácticas de enseñanza en la educación superior en el período 2000 a 2010, haciendo énfasis en los desarrollos de América Latina y el Caribe. Los estudios en las aulas universitarias confluyeron en la investigación de los mecanismos del proceso de aprendizaje. Esta problemática se abordó principalmente desde la teoría de los estilos de aprendizaje. En este contexto, se sitúan como corrientes teóricas predominantes en el esc...

  1. Andragogía y gestión educativa: la construcción de una metodología direccionada a la educación de enseñanza superior

    OpenAIRE

    Teixeira, Leila Soares

    2016-01-01

    Este estudio trata de la enseñanza para adultos de clase universitaria y la propuesta del uso de la metodología de enseñanza andragógica dirigida a ese grupo. En esta investigación se abordará el espacio universitario brasileño. En sus últimos veinte años, Brasil ha optado por la expansión de la Enseñanza Superior por la vía de la educación privada, transfiriendo su financiamiento público hacia alumnos que asisten a facultades pagas. En total éstos representan hoy 74 de los alumnos matriculad...

  2. [Massive inferior vena cava thrombosis in a patient with autosomal dominant polycystic hepatorenal disease].

    Science.gov (United States)

    Peces, R; Gil, F; Costero, O; Pobes, A

    2002-01-01

    We report a 68-year-old man with autosomal dominant polycystic kidney disease, who developed multiple venous thromboses (inferior vena cava, left renal vein and iliofemoral veins) caused by local compression of the intrahepatic inferior vena cava by hepatic cysts. To our knowledge this is the first reported case of inferior vena cava thrombosis caused by hepatic cysts compression. Doppler ultrasound, computed tomography, and magnetic resonance imaging were effective in documenting the venous thromboses and the underlying lesions non-invasively. Long-term anticoagulation was an efficient and safe treatment.

  3. O PDI como referente para avaliação de instituições de educação superior: lições de uma experiência El plan de desarrollo institucional como referente para evaluación de instituciones de educación superior: lecciones de una experiencia The plan of institutional development as reference to assess higher education institutions: lessons from experience

    Directory of Open Access Journals (Sweden)

    Stella Cecília Duarte Segenreich

    2005-01-01

    Full Text Available O Sistema Nacional de Avaliação da Educação Superior (SINAES, instituído em abril de 2004, colocou o Plano de Desenvolvimento Institucional (PDI como um de seus principais eixos de referência. Neste trabalho será descrita e analisada a experiência de organização do PDI em uma universidade consolidada do Rio de Janeiro, em 2002, com o objetivo de demonstrar que, à medida em que este plano é resultado de uma construção coletiva, impõe-se, naturalmente como fio condutor para qualquer avaliação, interna ou externa. Inicialmente, é feita uma análise da concepção governamental do PDI naquele momento para, em seguida, descrever a experiência realizada. Finalmente são levantadas questões e alternativas de ação como, por exemplo, a necessidade de inserir a avaliação de cada PDI, no bojo do projeto de avaliação interna do SINAES, não só em relação às metas nele propostas mas, também, em relação ao seu próprio processo de construção e implementação.El Sistema Nacional de Evaluación de la Educación Superior (HADOS, constituido en abril de 2004, puso el Plan de Desarrollo Institucional (PDI como uno de sus principales ejes de referencia. En este trabajo será descrita y analizada la experiencia de organización del PDI en una universidad consolidada de Río de Janeiro, en 2002, con el objetivo de demostrar que, como este plan es resultado de una construcción colectiva, se impone, naturalmente como hilo conductor para cualquier evaluación, interna o externa. Inicialmente, se hace un análisis de la concepción gubernamental del PDI en aquel momento para, enseguida, describir la experiencia realizada. Al fin se levantan las cuestiones y alternativas de acción como, por poner un ejemplo, la necesidad de inserir la evaluación de cada PDI, en el diseño del proyecto de evaluación interna del HADOS, no solo con relación a las metas en él propuestas sino, también, con relación a su propio proceso de construcci

  4. LA CESIÓN DE RESPONSABILIDAD EN LA EVALUACIÓN: UNA ESTRATEGIA ADAPTADA AL ESPACIO EUROPEO DE EDUCACIÓN SUPERIOR (ASSIGNMENT TO THE STUDENTS OF RESPONSIBILITY ON EVALUATION: A TEACHING STRATEGY ADAPTED TO THE EUROPEAN HIGHER EDUCATION AREA)

    National Research Council Canada - National Science Library

    Juan Antonio Moreno-Murcia; Adolfo Aracil; Raúl Reina

    2014-01-01

    ... de la autonomía, la autonomía percibida, la motivación intrínseca y la responsabilidad del alumnado en la evaluación. Y preguntas abiertas y cerradas relativas a la participación del alumnado en la evaluación en grupo, antes y después de una intervención didáctica de ocho meses de duración, basada en la cesión al alumnado de la responsabilidad en la evaluación. Tras un análisis descriptivo, de correlación y prueba t para muestras relacionadas, los resultados mostraron que este tipo de intervención in...

  5. USING WEB 2.0 TO OBTAIN AND CONSTRUCT INFORMATION. AN EXPERIENCE IN HIGHER EDUCATION USANDO LA WEB 2.0 PARA INFORMARSE E INFORMAR. UNA EXPERIENCIA EN EDUCACIÓN SUPERIOR

    Directory of Open Access Journals (Sweden)

    Andrea Francisco Amat

    2011-03-01

    Full Text Available In a context where the information has turned into a principal source and where media screens flood the public and private spaces, educational institutions have to provide the tools for the comprehension of the lived world, the promotion of the critical thinking or the construction of active and responsible citizenship. In this respect, the critical reading of the mass media and the production of media messages on the part of the student body becomes fundamental.Therefore, the role of the teacher has to change into a facilitator of spaces of learning that allow the student body to acquire the necessary capacities to face the challenges of the 21st century and Web 2.0 turns into an interesting pedagogic tool to learn through practice, information searching, interacting and collaborating (Cobo and Pardo, 2007.The purpose of the present article is to share the experiences of educational innovation developed in Castellón's Universitat Jaume I (Spain where students of Civic and Social Education have used Web 2.0 to seek, select and analyze information and then to produce their own informative material, both textual and audio-visual, in the process of learning alphabetized digital knowedge and practice. The project was highy evaluated by the student body through a Likert type questionnaire survey.En un contexto donde la información se ha convertido en la principal material prima y las pantallas inundan el espacio público y privado, las instituciones educativas han de proporcionar herramientas para la comprensión del mundo en el que se vive, la promoción del pensamiento crítico o la construcción de una ciudadanía activa y responsable. En este sentido, la lectura crítica de los mass media y la producción de mensajes mediáticos por parte del estudiantado se torna fundamental.Para ello, el rol del docente ha de cambiar para convertirse en un facilitador de espacios de aprendizaje que permitan al estudiantado adquirir las competencias necesarias

  6. La enseñanza de nociones básicas de economía en la formación docente. Una propuesta desde la experiencia de dos instituciones de educación superior regional

    Directory of Open Access Journals (Sweden)

    Yéssica Marlene González Gómez

    2014-01-01

    Full Text Available La implantación del programa Escuela 2.0 (2010-2012 supuso un incremento de la dotación tecnológica El propósito del artículo es presentar una propuesta de formación y alfabetización económica para estudiantes de pedagogía de educación secundaria. Se incluyen los casos de dos carreras: Pedagogía en Historia, Geografía y Educación Cívica y Pedagogía en Historia, Geografía y Ciencias Sociales. Dichos programas pertenecen a dos universidades regionales, ambas situadas en la Región de La Araucanía, Chile. La propuesta se fundamenta en el análisis del actual currículum de formación profesional, en el que la formación económica es un área inexistente. Específicamente, se plantea fortalecer el trabajo pedagógico de saberes disciplinarios para transformarlos en saberes objetos de enseñanza, en el área de economía. Los resultados obtenidos hasta el momento relevan la valoración que hacen los participantes de los saberes adquiridos en el programa. Asimismo, se constata en ellos el desarrollo de conocimientos conceptuales y didácticos que resultan útiles para su futura acción profesional. Una conclusión relevante establece la necesidad de un estudio longitudinal que haga seguimiento del trabajo realizado

  7. Preservation of the recipient inferior vena cava in liver transplantation.

    Science.gov (United States)

    Pereira, F; Herrera, J; Mora, N P; Nuño, J; Turrión, V S; Vicente, E; Ardaiz, J

    1994-01-01

    Twenty piggy-back (PB) liver transplantations (LT) were compared with 20 LT performed by the standard technique in order to evaluate whether or not the theoretical haemodynamic advantages of the preservation of the inferior vena cava (IVC) have any impact on the final results of the LT. Statistically significant differences were observed in the duration of the hepatectomy, which was longer for PB LT (192 min vs. 146 min), and in the duration of the anhepatic phase, which was shorter in that group (52 min vs. 76 min). There were no differences in the duration of the complete surgical procedure, consumption of blood products, incidence of postoperative acute renal failure, number of reoperations or survival.

  8. Marker-Negative Pheochromocytoma Associated with Inferior Vena Cava Thrombosis

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    S. Poudyal

    2017-01-01

    Full Text Available Pheochromocytoma associated with inferior vena cava (IVC thrombosis is very rare. A 27-year-old female presented with right flank pain and hypertensive urgency. Contrast-enhanced CT abdomen and gadolinium-contrast MRI abdomen revealed right adrenal mass suspicious of malignancy with invasion and compression to the right IVC wall along with IVC thrombus extending from the level of renal veins to the level of confluence with hepatic veins. Her routine laboratory investigations including 24-hour urine fractionated metanephrines, vanillylmandelic acid, and cortisol were normal. Right adrenalectomy with IVC thrombectomy was done. Perioperative period was uneventful. Histopathology of the mass turned out to be pheochromocytoma with thrombus revealing fibroadipose tissue with fibrin. Pheochromocytoma may present with IVC thrombus as well as normal serum and urinary markers. Thus, clinical suspicion is imperative in perioperative management of adrenal mass.

  9. Infrahepatic inferior vena cava agenesis with bilateral renal vein thrombosis.

    Science.gov (United States)

    Skeik, Nedaa; Wickstrom, Kelly K; Schumacher, Clark W; Sullivan, Timothy M

    2013-10-01

    Congenital anomalies of the inferior vena cava (IVC) are rare and are estimated to be present in 0.07-8.7% of the general population. IVC agenesis (IVCA) is found in approximately 5% of cases of unprovoked lower extremity deep vein thrombosis in patients Renal vein thrombosis (RVT) is an extremely rare and unusual presentation of IVCA. We report a unique case of a 23-year-old previously healthy man presenting with infrahepatic IVCA-induced bilateral RVT with azygos and hemiazygos continuation. To our knowledge, this is the third reported case in the literature of IVCA-induced RVT and the first to affect the bilateral renal veins in the absence of any other thrombogenic risk factors or any lower extremity venous complications. We also present a literature review of IVCA-induced vein thrombosis and highlight the lack of literature to manage this condition.

  10. LA INVESTIGACIÓN CUANTITATIVA DEL ACOSO PSICOLÓGICO LABORAL EN LOS SECTORES DE LA EDUCACIÓN SUPERIOR Y DE LA SALUD. UNA REVISIÓN SISTEMÁTICA.

    Directory of Open Access Journals (Sweden)

    Liliana Parra Osorio

    2010-01-01

    Full Text Available En este artículo el propósito fue la identificación de trabajos de investigación en acoso psicológico laboral con orientación cuantitativa enfocados preferiblemente en personal docente universitario, enfermeras y médicos a nivel nacional e internacional realizados entre 1990 y 2009. Metodología: Se realizó una revisión sistemática en fuentes electrónicas y físicas de revistas científicas especializadas. Se diseñó una matriz analítica con las siguientes variables: título del documento, materiales y métodos utilizados, tipo de estudio, hallazgos, discusiones e identificación de vacios en los estudios. Se recolectó un total de 115 artículos del tema acoso psicológico laboral de los cuales se seleccionaron 50 títulos que atendieran a las especificaciones definidas inicialmente. Fueron analizados, categorizados y codificados en forma cualitativa, específicamente a partir de los hallazgos y vacios expresados por el autor. Los hallazgos identificados estaban enfocados en aspectos de la personalidad y psicológicos de los acosados, del acosador, consecuencias de la salud y el trabajo de las víctimas, percepciones de las víctimas sobre el acosador, acciones sobre las víctimas por parte del acosador, entornos organizacionales que suscitan al acoso, predictores organizacionales y familiares de acoso, efectos en la organización, por último en enfermeras, médicos, docentes y el mobbing (acoso psicológico laboral. Las revisiones confirmaron en sus conclusiones y discusiones que efectivamente el contexto de trabajo en universidades e instituciones de salud en el que laboran los docentes universitarios médicos y enfermeras puede presentar ciertas condiciones organizacionales e individuales propicias para el posible desarrollo del acoso psicológico en el trabajo.

  11. Gestión de un entorno virtual de aprendizaje para el desarrollo de competencias profesionales interculturales: una experiencia de educación superior entre México y España

    Directory of Open Access Journals (Sweden)

    Gabriela María Farías Martínez

    2009-10-01

    Full Text Available El desarrollo y fortalecimiento de competencias en los estudiantes de educación superior requiere el diseño de estrategias didácticas innovadoras. Las TIC juegan un papel determinante en este sentido. La finalidad de este trabajo es compartir la experiencia educativa sobre la gestión de un entorno virtual de aprendizaje para el desarrollo y fortalecimiento de competencias profesionales entre estudiantes universitarios de México y España. La metodología de investigación utilizada combina técnicas de análisis cuantitativo y cualitativo. Los resultados muestran la conveniencia de un entorno virtual de aprendizaje para desarrollar actividades de aprendizaje intercultural que den a los estudiantes la oportunidad de interactuar con pares de otros países para construir conocimiento, fortalecer competencias y establecer redes de contacto. Sin embargo, es preciso tomar en cuenta las fortalezas y debilidades que presenta la gestión de un entorno virtual para que el proceso de aprendizaje sea efectivo en función de los objetivos conceptuales, procedimentales y actitudinales demandados por un modelo educativo basado en competencias.

  12. Análisis de la calificación de pérdida de capacidad laboral por desórdenes músculoesqueléticos en miembro superior en una administradora de riesgos profesionales colombiana en el año 2008

    OpenAIRE

    Suarez Moya, Angela Maryoure Gigliola

    2012-01-01

    Objetivos: identificar los factores considerados en la determinación de la pérdida de capacidad laboral (PCL) por desórdenes músculo-esqueléticos (DME) de miembro superior de origen laboral, en una Administradora de Riesgos Profesionales (ARP) colombiana. Método: se revisaron los informes de puntuación de PCL de 2008, realizándose búsquedas de los diagnósticos DME más comunes. Se estableció la relación de cada uno de ellos con la PCL, clasificándose así: (1) síndrome de túnel del carpo (STC);...

  13. Imaginería: ideas relativas a una filosofía de la imaginación como estrategia de enseñanza superior del diseño

    Directory of Open Access Journals (Sweden)

    Carlos Raúl NAVA GONZALEZ

    2015-01-01

    Full Text Available El objetivo de este artículo es mostrar el Diseño Gráfico como una disciplina que deriva en resultados y experiencias que aplican en lo colectivo y e n lo individual, por lo que su enseñanza requiere de procesos especiales , y por lo tanto , de especialistas. La docencia en el Diseño no ha sido reconocida como un campo laboral tan válido como la práctica profesional de la disciplina y que per s e debe ser desde la enseñanza un proceso innovador, . La magia de la creatividad ha quedado a un lado . Sus fracturas se evidencian más por alejarse de procedimientos y procesos que la innovación y los estudios de la imaginación generan . Estos últimos son procesos más y mejor estructurados, que se aplica n en la formación de los profesionistas del diseño. Las diversas teorías sobre la imaginación conllevan estudios de sistemas complejos, de procesos sinápticos, de elementos neuronales, de funciones neurofisiológicas y, l os más importantes, de ubicación del origen: la nada.

  14. LA GESTIÓN DOCUMENTAL EN PROCESOS ESTRATÉGICOS DE MEJORA; UN AGENTE DE OPORTUNIDAD EN UNA INSTITUCIÓN PÚBLICA DE EDUCACIÓN SUPERIOR: EL CASO DEL CIDE

    Directory of Open Access Journals (Sweden)

    Magdalena Revah Lacouture

    2009-01-01

    Full Text Available El presente trabajo tiene como finalidad el describir, el posicionamiento estratégico de la gestión documental en el Centro de Investigación y Docencia Eco-nómicas, A. C. (CIDE a través de su articulación, en dos procesos sustantivos de mejora. Se divide en cuatro fases: la primera toma como punto de partida la normatividad dictada por la Ley Federal de Transparencia y Acceso a la Información Pública Gubernamental (LFTAIPG. En la segunda se delimitan los procesos de mejora y su alcance a partir de los resultados de un diagnóstico institucional, dos encuestas de percepción de servicios y una propuesta de gestión electrónica de documentos. En la tercera se define y diseña la estrategia para la organización y sistematización de los documentos en estos procesos de mejora. La cuarta se enfoca al análisis de los resultados.

  15. Los retos de la educación superior: entre la formación académica y la convivencia solidaria. El derecho a una cultura de paz

    Directory of Open Access Journals (Sweden)

    Argentina Artavia Medrano

    2015-01-01

    Full Text Available Los procesos educativos en la mayor parte de latinoamérica están caracterizados por tensiones y conflictos, dicotomías que inciden directamente en las prácticas de aula, se reflejan en las estrategias empleadas por los docentes y se convierten en un obstáculo para la convivencia solidaria y el reconocimiento de la otredad. La educación contemporánea enfrenta diversos problemas y desafíos, así que es necesario replantear respuestas que permitan la formación holística de las personas, en tanto que se aprende a vivir en paz y sin violencia, reconociéndose como sujetos iguales, pero también distintos. Este artículo presenta una reflexión de la necesidad de realizar esfuerzos entre estudiantes, docentes y autoridades universitarias para fomentar el conocimiento y promoción de los derechos humanos, implementar estrategias de mediación pedagógica más democrática y menos autoritaria y promover que los estudiantes sean protagonistas en la construcción de espacios más democráticos, inclusivos y que permitan la resolución pacífica de conflictos.

  16. Deep Venous Thrombosis Associated With Inferior Vena Cava Abnormalities And Hypoplastic Kidney In Siblings

    Directory of Open Access Journals (Sweden)

    Duicu Carmen

    2016-06-01

    Full Text Available Congenital inferior vena cava anomalies have a reduced frequency in general population, many times being an asymptomatic finding. Patients caring such anomalies are at risk to develop deep vein thrombosis. In this paper, we present 2 siblings with deep venous thrombosis and inferior vena cava abnormalities, with a symptomatic onset at similar age. The inferior vena cava abnormality was documented by an angio-CT in each case. The thrombophilic workup was negative. Patients were treated with conservative therapy: low molecular weight heparin anticoagulants converted later to oral anticoagulant with resolution of symptoms and disappearance of the thrombus. Finally, in the absence of any risk factor in a young patient admitted with deep vein thrombosis investigations to exclude inferior vena cava anomalies are mandatory.

  17. Leiomioma benigno metastatizante de veia cava inferior: rara complicação tardia de histerectomia

    Directory of Open Access Journals (Sweden)

    Marcos Filgueiras

    Full Text Available Large vessel tumors diagnosis is usually difficult. Benign metastasizing leiomyoma is a rare condition occurring inside peripheral vessels. There are few publications about this tumor inside inferior vena cava. A 54 years old female patient is presented with a previous hysterectomy for myomas. She complained of no specific symptoms 18 months after surgery. Computer tomography revealed a 7.5 x 3.5 x 4.0 cm mass at inferior vena cava and right psoas muscle. After surgical management and immunohistochemical screening biopsy, the diagnosis was benign metastasizing leiomyoma of inferior vena cava. The patient recovery was uneventful. Benign metastasizing leiomyoma of inferior vena cava is a very rare condition, and must be suspected in patients with primary leiomyosarcoma, especially in women previously submitted to hysterectomy for leiomyomatosis.

  18. Novitates Gabonenses 63. Illigera cava (Hernandia-ceae), a new species from Gabon and Congo (Brazzaville)

    NARCIS (Netherlands)

    Breteler, F.J.; Wieringa, J.J.

    2008-01-01

    Illigera cava, endemic to Lower Guinea, is described, illustrated, and mapped. The new taxon brings the number of African Illigera species to four. Maps, and a key to the four species of Africa are presented.

  19. Estudo comparativo da biocompatibilidade da submucosa intestinal porcina e pericárdio bovino usados como enxertos na veia cava de cães Comparative study of the biocompatibility of the porcine intestinal submucosa and bovine pericardium used as grafts in the inferior cava vein of dogs

    Directory of Open Access Journals (Sweden)

    Fernando Hintz Greca

    2005-08-01

    Full Text Available OBJETIVO: Comparar a biocompatibilidade entre submucosa de intestino delgado (SID porcino e o pericárdio bovino como enxerto no reparo de lesões criadas na veia cava inferior de cães. MÉTODOS: Dezesseis cães foram submetidos a laparotomia. Após a abertura da cavidade abdominal a veia cava foi identificada e em seguida procedeu-se com a retirada de um segmento elíptico de 1,5X3cm de sua parede anterior. Em 8 animais o defeito foi reparado com SID porcino (grupo A e nos 8 animais restantes o defeito foi reparado com pericárdio bovino (grupo B.No 30° dia de P.O. realizou-se uma ultra-sonografia e a eutanásia foi realizada no 40°dia de pós-operatório. RESULTADOS: Observou-se estenose da veia cava em 1 cão do grupo do grupo A e em 2 animais do grupo B além de trombose em 1 cão desse mesmo grupo. A análise microscópica revelou um processo inflamatório crônico moderado em ambos os grupos. A endotelização do enxerto, regeneração de fibras musculares lisas e depósito de colágeno também foi similar nos 2 grupos estudados. CONCLUSÃO: A SID provou ser um excelente substrato para a regeneração vascular quando implantado em veia cava superior, contudo os resultados encontrados não diferem daqueles observados com o uso de pericárdio bovino.PURPOSE: To compare the biocompatibility of the bovine pericardium and the small intestine submucosa (SIS when used to repair a created defect in the inferior vena cava of dogs. METHODS: Sixteen male mongrel dogs were submitted to a midline laparotomy incision. An elliptical segment (1,5 X 3,0 cm of the inferior vena cava, below the renal veins, was excised. In 8 dogs, the A group, a patch of porcine small bowel submucosa was used to repair the defect. In the 8 remaining dogs, the B group, a bovine pericardium was implanted in the vena cava. On the 30th post-operative day an ultrasound was performed in order to identify stenosis. The euthanasia was accomplished in the 40th post-operative day

  20. Inferior vena cava aneurysm in an infant presenting with a renal mass.

    Science.gov (United States)

    Unzueta-Roch, José L; García-Abós, Miriam; Sirvent-Cerdá, Sara; de Prada, Inmaculada; Martínez de Azagra, Amelia; Ollero, Jose M; Madero-López, Luis

    2014-10-01

    Aneurysm of the inferior vena cava is a rare finding in the pediatric population. We report the case of a 5-month-old infant presenting with anemia, hypertension, and dehydration in the emergency room. A renal mass was found with ultrasound and MRI and a renal tumor was first considered. Histopathologic review of the surgical specimen led to the diagnosis of aneurysmal dilatation of the vena cava.

  1. RECURSOS DE GOOGLE PARA EL DESARROLLO DE UNA UNIDAD DIDÁCTICA CON ESTUDIANTES DE EDUCACIÓN SUPERIOR (GOOGLE RESOURCES TO DEVELOP A TEACHING UNIT WITH STUDENTS OF HIGHER EDUCATION

    Directory of Open Access Journals (Sweden)

    González Pérez Esteban

    2011-06-01

    Full Text Available Resumen:En la experiencia docente que motivó este artículo, se utilizaron distintos recursos disponibles desde el portal de Google.com® para el abordaje de una unidad temática del curso Referencia II del Bachillerato en Bibliotecología y Ciencias de la Información de la Universidad de Costa Rica. Los temas abordados fueron la Web 2.0®: su aplicación académica y las necesidades de información y su abordaje. El grupo de estudiantes participantes del curso mostró gran motivación en el desarrollo de las actividades programadas, generando reflexión y argumentos en ambos temas. Se concluye que el uso de recursos, tales como bitácoras, grupos de discusión, documentos compartidos y el correo electrónico provistos por Google de forma gratuita, se pueden considerar como recursos didácticos en el proceso de mediación docente.Abstract: In the teaching experience that motivated this article, we used various resources available from the Google.com® website for the approach of a thematic unit in the Course Reference II of Bachelor of Library Science at the University of Costa Rica. The topics were the Web 2.0® application and academic information needs and their approach. The group of participating students showed great motivation in the development of activities, generating discussion and arguments on both issues. We conclude that the use of resources such as blogs, discussion groups, document sharing and email provided by Google for free, can be considered as teaching resources in teaching mediation process.

  2. superior en México

    Directory of Open Access Journals (Sweden)

    César Mureddu Torres

    2008-01-01

    Full Text Available El presente artículo desarrolla algunos de los retos que ha traído consigo el acceso a la información existente en la red de Internet y lo que ello supone. Se abordan principalmente las consecuencias de la presencia actual de una sociedad llamada del conocimiento, si se mantiene la confusión entre conocimiento e información. Por ello, la sola gestión de la información no puede ser tomada como definitoria respecto a la función de educación superior confiada a las universidades. Hacerlo sería cometer un error aún más grave que la confusión teórica entre los términos mencionados.

  3. Successful removal of a Gunther tulip vena cava filter with wall-embedded hook and migration during a retrieval attempt.

    Science.gov (United States)

    Yamagami, Takuji; Yoshimatsu, Rika; Matsumoto, Tomohiro; Nishimura, Tsunehiko

    2013-01-01

    Retrieval of a Gunther tulip vena cava filter implanted in a patient with inferior vena cava and right common iliac vein thrombosis was attempted by the standard method. Because the filter was tilted, the hook became attached to the vena cava wall and could not be snared. During attempts at removal by an alternative method, the filter migrated toward the right atrium. However, it was finally successfully removed.

  4. Superior Hiking Trail

    Data.gov (United States)

    Minnesota Department of Natural Resources — Superior Hiking Trail main trail, spurs, and camp spurs for completed trail throughout Cook, Lake, St. Louis and Carlton counties. These data were collected with...

  5. Bathymetry of Lake Superior

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lake Superior has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more...

  6. Superior Hiking Trail Facilities

    Data.gov (United States)

    Minnesota Department of Natural Resources — Superior Hiking Trail main trail, spurs, and camp spurs for completed trail throughout Cook, Lake, St. Louis and Carlton counties. These data were collected with...

  7. Inferior vena cava dimensions in patients with acute kidney injury

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    Andres Yepes-Hurtado

    2016-07-01

    Full Text Available Background: Volume contraction frequently contributes to the development of acute kidney injury.  The rapid assessment of volume status in patients with acute kidney injury could improve decision making and outcomes. Methods: The maximum and minimum diameters and percent collapsibility of the inferior vena cava (IVC were measured in 30 patients admitted to the medical intensive care unit with laboratory evidence of acute kidney injury.  These measurements were made on the day of admission and 24 hours following admission.  Information about age, gender, body mass index, serum creatinine levels, and fluid balances was recorded. Results: This study included 30 patients with a mean age is 62.4 ±16.0 years.  The mean initial creatinine was 4.3 ± 4.2 mg/dL (range: 1.7 mg/dL to 22.1 mg/dL.  The mean fractional excretion of sodium was 2.06 ± 2.65%.  The mean maximum diameter of inferior vena cava was 1.8 ± 0.5 cm with the range is 0.4-2.65 cm.  The mean percent collapse was 32 ± 20%.  Five patients had evidence of hypovolemia using guidelines from the American Society of Echocardiology; 6 patients had evidence of hypervolemia.  Nineteen patients had measurements between these 2 categories.  There is no significant change in mean diameters following fluid administration for 24 hours.  An initial IVC diameter of 0.94 cm predicted ≥ 30% collapsibility with an area under the curve is 0.748. Discussion: Patients with acute kidney injury based on laboratory measurements had evidence for hypovolemia, euvolemia, and hypervolemia based on IVC measurements.  There was no consistent change in IVC dimensions following fluid administration, even though the creatinine fell in most patients.  Simple bedside measurements of IVC dimensions can facilitate fluid administration decisions but must be used with clinical assessment.

  8. Comparison between respiratory changes in the inferior vena cava diameter and pulse pressure variation to predict fluid responsiveness in postoperative patients.

    Science.gov (United States)

    de Oliveira, Olivia Haun; Freitas, Flávio Geraldo Rezende de; Ladeira, Renata Teixeira; Fischer, Claudio Henrique; Bafi, Antônio Tonete; Azevedo, Luciano Cesar Pontes; Machado, Flávia Ribeiro

    2016-08-01

    The objective of our study was to assess the reliability of the distensibility index of the inferior vena cava (dIVC) as a predictor of fluid responsiveness in postoperative, mechanically ventilated patients and compare its accuracy with that of the pulse pressure variation (PPV) measurement. We included postoperative mechanically ventilated and sedated patients who underwent volume expansion with 500mL of crystalloids over 15minutes. A response to fluid infusion was defined as a 15% increase in the left ventricular outflow tract velocity time integral according to transthoracic echocardiography. The inferior vena cava diameters were recorded by a subcostal view using the M-mode and the PPV by automatic calculation. The receiver operating characteristic (ROC) curves were generated for the baseline dIVC and PPV. Twenty patients were included. The area under the ROC curve for dIVC was 0.84 (95% confidence interval, 0.63-1.0), and the best cutoff value was 16% (sensitivity, 67%; specificity, 100%). The area under the ROC curve for PPV was 0.92 (95% confidence interval, 0.76-1.0), and the best cutoff was 12.4% (sensitivity, 89%; specificity, 100%). A noninferiority test showed that dIVC cannot replace PPV to predict fluid responsiveness (P=.28). The individual PPV discriminative properties for predicting fluid responsiveness in postoperative patients seemed superior to those of dIVC. Copyright © 2016 Elsevier Inc. All rights reserved.

  9. Preliminary experience with Option inferior vena cava filter.

    Science.gov (United States)

    Iqbal, Shams I; Elmi, Azadeh; Hedgire, Sandeep; Yeddula, Kalpana; Ganguli, Suvranu; Walker, T Gregory; Salazar, Gloria M; Wicky, Stephan; Kalva, Sanjeeva P

    2013-01-01

    To evaluate the safety and efficacy of Option inferior vena cava (IVC) filter during placement and short-term follow-up. A total of 165 patients (mean age: 60-years) who received Option IVC filter from June 2009 to July 2011 were included. In all, 42 patients presented with deep vein thrombosis (DVT), 26 with pulmonary embolism (PE), and 17 with both. All outcomes were examined until April 30, 2012. The filters were successfully deployed in 161patients. During follow-up (mean, 9.5 ± 0.68months), 10 patients were diagnosed with post-filter PE and 13 patients with DVT. There were no instances of fatal PE. Follow-up abdominal computed tomography was available in 60 patients and demonstrated filter-related problems in 8 patients (2: penetration of filter legs, 5: asymptomatic nonocclusive thrombus, and 1: caval occlusion). There were no instances of filter migration or fracture. In total, 27 filters were successfully retrieved after a mean of 5.27 ± 0.76 months. The Option filter was effective and safe during implantation and short-term follow-up and associated with high technical success at retrieval.

  10. Quiste hidatídico hepático complicado con invasión a vena cava inferior y embolización de membranas hidatídicas a aurícula derecha: Caso clínico

    OpenAIRE

    BAHAMONDES S,JUAN C; SANDOVAL M,PABLO; LOSADA M,HÉCTOR; Meriño S,Gustavo; SALMAN A,JUAN; SILVA V,ABELARDO; Mora P,Javier

    2010-01-01

    La hidatidosis es una zoonosis parasitaria, de mayor incidencia en el sur de Chile. Su localización más frecuente es hepática y pulmonar. Sus complicaciones derivan de su crecimiento y afección de estructuras adyacentes o de su ruptura a cavidades. Presentamos un caso de quiste hidatídico hepático complicado, en una paciente que debutó con cuadro de dolor abdominal localizado en hipocondrio derecho producto de una lesión quística hepática con comunicación a vena cava inferior, siendo interven...

  11. Assédio moral entre docentes de instituição pública de ensino superior do Brasil Asedio moral entre docentes de una institución pública de enseñanza universitaria en Brasil Moral harassment among professors in a public university in Brazil

    Directory of Open Access Journals (Sweden)

    Vânia Cláudia Spoti Caran

    2010-01-01

    Full Text Available OBJETIVO: Identificar a existência de assédio moral (AM entre os docentes de uma instituição pública de ensino superior do Brasil MÉTODOS: Estudo quantitativo e descritivo de corte transversal abrangendo amostra de 54 professores (62,8% que responderam a um instrumento contendo questões sobre AM no trabalho. RESULTADOS: A maioria era mulher (92,6%, entre 40 a 59 anos (72,2%, com tempo de trabalho institucional inferior a 15 anos (61,1; 40,7% admitiram já ter sido vítimas de AM no trabalho; 59,3% conheciam colegas que haviam sofrido AM e 70,4% afirmaram que é um problema comum na instituição. Descrições dos casos envolveram chefes/superiores, colegas e professores/docentes/orientadores. CONCLUSÃO: Universidades são locais onde acontecem competições por cargos, recursos para pesquisas e publicações, o que facilita a ocorrência desse fenômeno. As individualidades devem ser superadas por valores, como equidade e solidariedade para que não aconteçam esses tipos de situações.OBJETIVO: Identificar la existencia de asedio moral (AM entre los docentes de una institución pública de enseñanza universitaria en Brasil MÉTODOS: Se trata de un estudio cuantitativo y descriptivo de corte transversal abarcando una muestra de 54 profesores (62,8% que respondieron a un instrumento que contenía preguntas sobre asedio moral en el trabajo. RESULTADOS: La mayoría era mujer (92,6%, entre 40 a 59 años (72,2%, con tiempo de trabajo institucional inferior a 15 años (61,1; 40,7% admitieron haber sido víctimas de AM en el trabajo; 59,3% conocían a los compañeros que habían sufrido AM y, 70,4% afirmaron que es un problema común en la institución. Las descripciones de los casos envolvieron a jefes, superiores, compañeros, profesores, docentes y orientadores. CONCLUSIÓN: Las universidades son locales donde se compite por cargos, por recursos para investigaciones y para publicaciones, lo que facilita la ocurrencia de este fenómeno. Las

  12. Effect of Dieckol, a Component of Ecklonia cava, on the Promotion of Hair Growth

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    Sang-Cheol Kim

    2012-05-01

    Full Text Available This study was conducted to evaluate the effect of Ecklonia cava, a marine alga native to Jeju Island in Korea, on the promotion of hair growth. When vibrissa follicles were cultured in the presence of E. cava enzymatic extract (which contains more than 35% of dieckol for 21 days, E. cava enzymatic extract increased hair-fiber length. In addition, after topical application of the 0.5% E. cava enzymatic extract onto the back of C57BL/6 mice, anagen progression of the hair-shaft was induced. The treatment with E. cava enzymatic extract resulted in the proliferation of immortalized vibrissa dermal papilla cells (DPC. Especially, dieckol, among the isolated compounds from the E. cava enzymatic extract, showed activity that increased the proliferation of DPC. When NIH3T3 fibroblasts were treated with the E. cava enzymatic extract and the isolated compounds from the E. cava enzymatic extract, the E. cava enzymatic extract increased the proliferation of NIH3T3 fibroblasts, but the isolated compounds such as eckol, dieckol, phloroglucinol and triphlorethol-A did not affect the proliferation of NIH3T3 fibroblasts. On the other hand, the E. cava enzymatic extract and dieckol significantly inhibited 5α-reductase activity. These results suggest that dieckol from E. cava can stimulate hair growth by the proliferation of DPC and/or the inhibition of 5α-reductase activity.

  13. Porcine vena cava as an alternative to bovine pericardium in bioprosthetic percutaneous heart valves.

    Science.gov (United States)

    Munnelly, Amy E; Cochrane, Leonard; Leong, Joshua; Vyavahare, Naren R

    2012-01-01

    Percutaneous heart valves are revolutionizing valve replacement surgery by offering a less invasive treatment option for high-risk patient populations who have previously been denied the traditional open chest procedure. Percutaneous valves need to be crimped to accommodate a small-diameter catheter during deployment, and they must then open to the size of heart valve. Thus the material used must be strong and possess elastic recoil for this application. Most percutaneous valves utilize bovine pericardium as a material of choice. One possible method to reduce the device delivery diameter is to utilize a thin, highly elastic tissue. Here we investigated porcine vena cava as an alternative to bovine pericardium for percutaneous valve application. We compared the structural, mechanical, and in vivo properties of porcine vena cava to those of bovine pericardium. While the extracellular matrix fibers of pericardium are randomly oriented, the vena cava contains highly aligned collagen and elastin fibers that impart strength to the vessel in the circumferential direction and elasticity in the longitudinal direction. Moreover, the vena cava contains a greater proportion of elastin, whereas the pericardium matrix is mainly composed of collagen. Due to its high elastin content, the vena cava is significantly less stiff than the pericardium, even after crosslinking with glutaraldehyde. Furthermore, the vena cava's mechanical compliance is preserved after compression under forces similar to those exerted by a stent, whereas pericardium is significantly stiffened by this process. Bovine pericardium also showed surface cracks observed by scanning electron microscopy after crimping that were not seen in vena cava tissue. Additionally, the vena cava exhibited reduced calcification (46.64 ± 8.15 μg Ca/mg tissue) as compared to the pericardium (86.79 ± 10.34 μg/mg). These results suggest that the vena cava may provide enhanced leaflet flexibility, tissue resilience, and tissue

  14. La educación superior como eje del desarrollo

    Directory of Open Access Journals (Sweden)

    Benjamín Afanador Vargas

    2003-11-01

    Full Text Available Este documento analiza cómo ha sido la interacción entre la política educativa y las estrategiasde desarrollo en Colombia, a lo largo del siglo XX. Se presenta una revisión del estadoactual de la educación en Colombia, tanto a nivel de educación básica y media, como de laeducación superior. Para ello se toman tres criterios básicos que son la cobertura, la calidady la equidad en el acceso a la educación. Para el caso de la educación superior, se comparala oferta de cupos con la demanda existente, se clasifican los distintos segmentos en que sedivide la educación superior y se hace una breve reseña sobre el recurso humano con que secuenta en la educación superior colombiana. Así mismo, se expone una conceptualización delos retos que enfrenta la educación superior, sobretodo para lograr una cohesión de la sociedad,evitando que algunos de sus integrantes sean excluidos y permitiendo que todos losestamentos de la sociedad puedan compartir los mismos ideales y los consideren asequibles.Finalmente, se presentan unas conclusiones que se derivan del estudio y se proponen algunasrecomendaciones de política .

  15. The Edible Brown Seaweed Ecklonia cava Reduces Hypersensitivity in Postoperative and Neuropathic Pain Models in Rats

    Directory of Open Access Journals (Sweden)

    Jae Goo Kim

    2014-06-01

    Full Text Available The current study was designed to investigate whether edible brown seaweed Ecklonia cava extracts exhibits analgesic effects in plantar incision and spared nerve injury (SNI rats. To evaluate pain-related behavior, we performed the mechanical withdrawal threshold (MWT and thermal hypersensitivity tests measured by von Frey filaments and a hot/cold plate analgesia meter. Pain-related behavior was also determined through analysis of ultrasonic vocalization. The results of experiments showed MWT values of the group that was treated with E. cava extracts by 300 mg/kg significantly increased; on the contrary, number of ultrasonic distress vocalization of the treated group was reduced at 6 h and 24 h after plantar incision operation (62.8%, p < 0.05. Moreover, E. cava 300 mg/kg treated group increased the paw withdrawal latency in hot-and cold-plate tests in the plantar incision rats. After 15 days of continuous treatment with E. cava extracts at 300 mg/kg, the treated group showed significantly alleviated SNI-induced hypersensitivity response by MWT compared with the control group. In conclusion, these results suggest that E. cava extracts have potential analgesic effects in the case of postoperative pain and neuropathic pain in rats.

  16. [Parasitism of the vena cava and adrenal veins in chronic chagasic patients].

    Science.gov (United States)

    Teixeira, V de P; Almeida, H de O; dos Reis, M A; Silveira, S A; Araujo, M B

    1989-01-01

    The occurrence of nest of trypanosoma cruzi in the smooth muscle cells of the central veins of the adrenal glands and the inferior vena cava was studied in 21 chronic Chagas' patients, by serial sections. Nine patients presented parasites in the adrenal veins, with a total of 24 nests, and only one nest was found in the inferior vena cava. The area of muscular tissue examined was of 2944.3 mm2 for the adrenal veins and of 47808.6 mm2 for the vena cava, giving a relation of 0.815 nests/100 mm2 for the adrenal vein and of 0.002 for the vena cava. Thus the smooth muscle of the adrenal vein was 407 times more parasited than the muscular wall of the inferior vena cava. This higher parasitism of the adrenal vein by trypanosoma cruzi in chronic Chagas' disease may be determined by its greater corticosteroid concentration, which can reduce the anti-trypanosomal defenses.

  17. RANGOS DE CONTROL DE HUMEDAD RELATIVA Y TEMPERATURA EN CAVAS DE MADURACIÓN DE QUESOS CLASSES DE CONTROLE DE UMIDADE RELATIVA E TEMPERATURA EM CAVAS DE MADURAÇÃO DE QUEIJOS RANGES OF CONTROL OF RELATIVE HUMIDITY AND TEMPERATURE IN CHAMBERS OF MATURATION OF CHEESES

    Directory of Open Access Journals (Sweden)

    DEYANIRA MUÑOZ MUÑOZ

    2010-06-01

    Full Text Available La humedad relativa y la temperatura en el interior de las cavas maduración del proceso de fabricación de quesos, son de interés a controlar porque determinan las características finales del producto. Las investigaciones se enfocan al control de estas dos variables en los rangos de diseño y operación recomendados, que permitan plantear sistemas de reducción de humedad más eficientes, que utilicen controles automáticos, semiautomáticos, manuales y artesanales. La metodología para establecer el rango de control fue: Se realizó un diseño completamente aleatorizado de efectos fijos. Se tomó como unidad experimental (Ue, la cava de maduración de queso, se establecieron 4 tratamientos con 17 repeticiones para operar la cava: mecheros y extractores encendidos; mecheros encendidos; extractores encendidos; mecheros y extractores apagados. Las variables de respuesta de interés en este estudio fueron la humedad relativa y la temperatura. Se tomó como referente de comparación los rangos de diseños recomendados en cavas de maduración: HR: 85 a 90% y T: 12 a 16 °C. El estudio se realizó en 12 días. En la sistematización de los datos se utilizó el paquete estadístico Social Packet Stadistic Sciences (SPSS versión libre 11.5. Los rangos de control encontrados para operar la cava de maduración de quesos fueron 93 a 100 % para humedad relativa (HR y 11 a 16°C para la temperatura (T, los cuales corresponde al tratamiento cuatro del diseño experimental. El límite superior de 100 % HR y 16°C de T, se definió como la condición más critica del proceso a ser controlada, en comparación con las recomendadas por diseño (HR= 85 %, T= 12°Cy las reportadas por otros investigadores (HR= 80 a 90 % HR, T= 12 °C. Mientras los valores que están fuera del rango definieron el proceso no controlado.A umidade relativa e temperatura no interior das cavas maduragáo do processo de fabricação de queijos são de interesse a controlar por que

  18. Vena cava filters in cancer patients: experience with 50 patients Filtros de veia cava inferior em pacientes com câncer: experiência em 50 casos

    Directory of Open Access Journals (Sweden)

    Antonio Eduardo Zerati

    2005-10-01

    Full Text Available OBJECTIVE: To study the immediate and late results obtained from the implantation of vena cava filters in cancer patients with deep vein thrombosis concomitant with neoplasia. METHODS: This was a retrospective evaluation of 50 patients with an association of cancer and deep venous thrombosis who underwent interruption of the inferior vena cava and the insertion of permanent vena cava filters. The indications for the procedure, filter implantation technique, early and late complications related to the operation, and the clinical evolution were evaluated. RESULTS: The most frequent indication for filter implantation was the contraindication for full anticoagulant treatment (80%. The femoral vein was the preferred access route (86% of the patients. There were no complications related to the surgical procedure. During the follow-up, the following complications were observed: 1 episode of nonfatal pulmonary thromboembolism, 2 cases of occlusion of the inferior vena cava, and 1 case of thrombus retained in the device. Twenty patients (40% died due to progression of the neoplasm. CONCLUSIONS: Interruption of the inferior cava vein using an endoluminal filter is a procedure with a low rate of complications. It is a safe and efficient measure for preventing pulmonary embolism in cancer patients who have deep vein thrombosis of the lower limbs.OBJETIVO: Estudar os resultados imediatos e tardios obtidos com a implantação de filtros de veia cava inferior em pacientes com trombose venosa profunda concomitante a neoplasia. MÉTODOS: Avaliamos retrospectivamente 50 pacientes com câncer e trombose venosa profunda associada submetidos a interrupção de veia cava inferior com filtros intraluminais definitivos. Foram estudados aspectos referentes à indicação do procedimento, à técnica de implante dos dispositivos, complicações precoces e tardias relacionadas à operação e à evolução dos pacientes. RESULTADOS: A indicação mais freqüente para o

  19. Inferior vena cava filters in pulmonary embolism: A historic controversy.

    Science.gov (United States)

    Jerjes-Sanchez, Carlos; Rodriguez, David; Navarrete, Aline; Parra-Cantu, Carolina; Joya-Harrison, Jorge; Vazquez, Eduardo; Ramirez-Rivera, Alicia

    Rationale for non-routine use of inferior venous cava filters (IVCF) in pulmonary embolism (PE) patients. Thrombosis mechanisms involved with IVCF placement and removal, the blood-contacting medical device inducing clotting, and the inorganic polyphosphate in the contact activation pathway were analyzed. In addition, we analyzed clinical evidence from randomized trials, including patients with and without cancer. Furthermore, we estimated the absolute risk reduction (ARR), the relative risk reduction (RRR), and the number needed to treat (NNT) based on the results of each study using a frequency table. Finally, we analyzed the outcome of our PE patients that were submitted to thrombolysis with short and long term follow-up. IVCF induces thrombosis by several mechanisms including placement and removal, rapid protein adsorption, and simultaneous surface-induced activation via the contact activation pathway. Also, inorganic polyphosphate has an important role as a procoagulant, reversing the effect of anticoagulants. Randomized control trials included 904 cancer and non-cancer PE patients. In terms of ARR, RRR, and NNT, there is no evidence for routine use of IVCF. In 290 patients with proved PE, extensive thrombotic burden and right ventricular dysfunction under thrombolysis and oral anticoagulation, we observed a favorable outcome in a short- and long-term follow-up; additionally, IVCF was only used in 5% of these patients. Considering the complex mechanisms of thrombosis related with IVCF, the evidence from randomized control trials and ARR, RRR, and NNT obtained from venous thromboembolism patients with and without cancer, non-routine use of IVCF is recommended. Copyright © 2017 Instituto Nacional de Cardiología Ignacio Chávez. Publicado por Masson Doyma México S.A. All rights reserved.

  20. Vena cava filter retrieval in therapeutically anticoagulated patients.

    Science.gov (United States)

    Schmelzer, Thomas M; Christmas, A Britton; Taylor, Dennis A; Heniford, B Todd; Sing, Ronald F

    2008-12-01

    Vena cava filters (VCFs) are indicated in patients with active venous thromboembolism and are a contraindication to therapeutic anticoagulation. When patients can be anticoagulated, VCFs can be removed; however, patients often have anticoagulation discontinued during the retrieval procedure, leaving them at risk for pulmonary embolism (PE). The authors evaluated their experience with retrieving VCFs in therapeutically anticoagulated patients. Data from a prospectively collected database of patients with VCFs placed between January 2005 and September 2007 were reviewed. The retrievals in therapeutically anticoagulated patients (international normalized ratio, 2.0-3.4) were performed using a strict protocol, including preretrieval and postretrieval cavograms. All retrievals were performed in the operating room, and patients were discharged home the same day and examined within 7 to 14 days. Descriptive statistics including means and counts were calculated. One hundred thirteen VCF removals occurred during the study period; 62 were attempted on anticoagulated patients (42 male and 20 female patients; mean age, 36.5 years). Thirty-five patients (56%) had VCFs placed for prophylaxis, 22 (35%) had deep venous thromboses or PEs but had contraindications to anticoagulation, and 5 (8%) were on anticoagulation, which was discontinued perioperatively for major surgical operations. The mean time the filters were in place was 153.7 days (range, 22-684 days). No extravasation was seen on postretrieval cavography. Eight of 62 removal attempts in anticoagulated patients were unsuccessful. One patient had a postoperative pneumothorax that was successfully managed without intervention. There were no operative bleeding complications, and no hematomas or contusions were seen at follow-up. The retrieval of VCFs in therapeutically anticoagulated patients can be performed without complication. Given the perioperative risk for PE, anticoagulation should not be discontinued for VCF

  1. Design Optimization of Vena Cava Filters: An application to dual filtration devices

    Energy Technology Data Exchange (ETDEWEB)

    Singer, M A; Wang, S L; Diachin, D P

    2009-12-03

    Pulmonary embolism (PE) is a significant medical problem that results in over 300,000 fatalities per year. A common preventative treatment for PE is the insertion of a metallic filter into the inferior vena cava that traps thrombi before they reach the lungs. The goal of this work is to use methods of mathematical modeling and design optimization to determine the configuration of trapped thrombi that minimizes the hemodynamic disruption. The resulting configuration has implications for constructing an optimally designed vena cava filter. Computational fluid dynamics is coupled with a nonlinear optimization algorithm to determine the optimal configuration of trapped model thrombus in the inferior vena cava. The location and shape of the thrombus are parameterized, and an objective function, based on wall shear stresses, determines the worthiness of a given configuration. The methods are fully automated and demonstrate the capabilities of a design optimization framework that is broadly applicable. Changes to thrombus location and shape alter the velocity contours and wall shear stress profiles significantly. For vena cava filters that trap two thrombi simultaneously, the undesirable flow dynamics past one thrombus can be mitigated by leveraging the flow past the other thrombus. Streamlining the shape of thrombus trapped along the cava wall reduces the disruption to the flow, but increases the area exposed to abnormal wall shear stress. Computer-based design optimization is a useful tool for developing vena cava filters. Characterizing and parameterizing the design requirements and constraints is essential for constructing devices that address clinical complications. In addition, formulating a well-defined objective function that quantifies clinical risks and benefits is needed for designing devices that are clinically viable.

  2. Testicular tumors with tumor thrombosis within the inferior vena cava: Two case reports

    Energy Technology Data Exchange (ETDEWEB)

    Park, Ji Eun; Moon, Sung Kyoung; Lim, Joo Won; Park, Seong Jin [Kyung Hee Univ. Hospital/College of Medicine/Kyung Hee Univ. Seoul (Korea, Republic of)

    2012-09-15

    Testicular tumors are almost all malignant tumors and can develop in younger age groups. Testicular tumors are mostly curable, with reported cases of tumor thrombosis within the inferior vena cava being rare. Two patients, aged 35 years and 37 years old complaining of testicular pain and lower abdominal pain were diagnosed with testicular tumors by ultrasound. In addition, tumor thrombus of the inferior vena cava was diagnosed concomitantly at the time of the diagnosis by computed tomography and magnetic resonance imaging. Here, we report testicular tumors accompanied by tumor thrombus, which is an extremely rare finding, with limited reports available. Pathologic diagnoses were seminoma and mixed germ cell tumors, respectively.

  3. Advanced Hepatocellular Carcinoma with Subtotal Occlusion of the Inferior Vena Cava and a Right Atrial Mass

    Directory of Open Access Journals (Sweden)

    Christian Steinberg

    2013-01-01

    Full Text Available Hepatocellular carcinoma usually metastasizes to regional lymph nodes, lung, and bones but can rarely invade the inferior vena cava with intravascular extension to the right atrium. We present the case of a 75-year-old man who was admitted for generalized oedema and was found to have advanced HCC with invasion of the inferior vena cava and endovascular extension to the right atrium. In contrast to the great majority of hepatocellular carcinoma, which usually develops on the basis of liver cirrhosis due to identifiable risk factors, none of those factors were present in our patient.

  4. [An exceptional case of renal angiomyolipoma extended to the inferior vena cava. Successfull surgical management].

    Science.gov (United States)

    Dinis da Gama, A; Cunha e Sá, Diogo; Alves, José Maria; Carneiro de Moura, J L; Lopez, Dolores; Fernandes, Afonso

    2008-01-01

    The clinical case of a 39 years old female is reported, with the diagnosis of tumor of the right kidney extending into the infra-hepatic vena cava, assuming the shape of a floating thrombus. The patient underwent right radical nephrectomy, followed by resection of the intra caval tumor. Both the procedure and post operative course were uneventfull. Histopathological evaluation of the specimens, associated to specific imunohistochemistry studies, confirmed the diagnosis of angiomyolipoma of the kidney. A review of the literature concluded that this is the 27th case published of a kidney angiomyolipoma extending into the inferior vena cava, thus justifying its presentation and divulgation.

  5. Air Superiority Fighter Characteristics.

    Science.gov (United States)

    1998-06-05

    many a dispute could have been deflated into a single paragraph if the disputants had just dared to define their terms.7 Aristotle ...meaningful. This section will expand on some key ideology concepts. The phrase "air superiority fighter" may bring to mind visions of fighter... biographies are useful in garnering airpower advocate theories as well as identifying key characteristics. Air campaign results, starting with World

  6. Imaging of the vena cava in the intensive care unit prior to vena cava filter insertion: carbon dioxide as an alternative to iodinated contrast.

    Science.gov (United States)

    Schmelzer, Thomas M; Christmas, A Britton; Jacobs, David G; Heniford, B Todd; Sing, Ronald F

    2008-02-01

    This study evaluates the safety and effectiveness of carbon dioxide (CO2) as a contrast agent in patients in the intensive care unit undergoing vena cava filter (VCF) insertion. We prospectively evaluated patients in the intensive care unit undergoing bedside VCF insertion using CO2 cavagraphy. Blood pressure, pulse rate, mixed venous oxygen saturation, and intracranial pressure were monitored before, during, and after the CO2 injection. Fifty patients in the intensive care unit (mean age 48.2 +/- 16.5 years) were included in the study. Five patients had decreases in blood pressure, which resolved without intervention. Two patients required iodinated contrast as a result of inadequate CO2 imaging. All patients had successful insertion of VCF. The use of CO2 as a contrast agent is a safe and highly effective alternative for vena cava imaging and can be considered the first-line contrast agent for all critically ill patients requiring VCF placement.

  7. Experiência preliminar com novo filtro de veia cava: resultados de 15 implantes Preliminary experience with a new vena cava filter: results of 15 implantations

    Directory of Open Access Journals (Sweden)

    Winston B. Yoshida

    2008-09-01

    Full Text Available Este estudo apresenta resultados preliminares obtidos com um novo filtro permanente de veia cava, baseado no desenho de Greenfield, com três hastes prolongadas de um total de seis, para dar estabilidade central ao filtro na luz da veia cava. Neste artigo, relatamos sua avaliação clínica preliminar quanto à aplicabilidade, eficácia e segurança. De agosto de 2004 a dezembro de 2006, 15 filtros foram implantados em nove homens e seis mulheres, com idades variando de 38 a 79 anos (média de 57,8 anos. O acesso foi feito sempre por via transjugular. As indicações foram: trombose venosa proximal, com contra-indicação de anticoagulação em 12 pacientes; complicações hemorrágicas com anticoagulação em dois pacientes; e embolia pulmonar, apesar de anticoagulação adequada, em um paciente. Os filtros foram avaliados quanto à liberação, inclinação, mau posicionamento e perfuração de cava. No seguimento, avaliou-se trombose no local de acesso, tromboembolismo venoso recorrente, migração do filtro e trombose de cava pelo ultra-som. Nenhum paciente recebeu anticoagulantes no seguimento. O filtro foi liberado com sucesso em todos os casos sem mau posicionamento, inclinação, perfuração ou trombose de acesso. Os pacientes foram seguidos entre 3 e 23 meses (média de 11 meses. Nenhum paciente teve recorrência de tromboembolismo venoso. Não houve casos de trombose de veia cava ou migração do filtro. Óbito ocorreu em sete casos, todos relacionados com a moléstia de base. Os resultados preliminares indicam potencial eficácia e segurança do uso do novo filtro no período estudado.This study presents preliminary results obtained from a new permanent filter, based on Greenfield's filter design, with prolongations on three of six struts to stabilize it centrally in the vena caval lumen. The preliminary clinical evaluation of the filter with regard to feasibility, efficacy and safety is reported. From August 2004 to December 2006

  8. Outcome of inferior vena cava and noncaval venous leiomyosarcomas.

    Science.gov (United States)

    Illuminati, Giulio; Pizzardi, Giulia; Calio', Francesco; Pacilè, Maria Antonietta; Masci, Federica; Vietri, Francesco

    2016-02-01

    Leiomyosarcoma (LMS) is a rare tumor arising from the smooth muscle cells of arteries and veins. LMS may affect both the inferior vena cava (IVC) and non-IVC veins. Because of its rarity, the experience with the outcome of the disease originating from the IVC compared with that with non-IVC offspring is overall limited. In this study, we compared the clinical features and outcomes after operative resection of IVC and non-IVC LMS to detect possible significant differences that could affect treatment and prognosis. Twenty-seven patients undergoing operative resection of a venous LMS at a single tertiary care center and one secondary care hospital were reviewed retrospectively and divided into 2 groups: IVC-LMS (Group A, n = 18) and non-IVC LMS (Group B, n = 9). As primary end points, postoperative mortality and morbidity, disease-specific survival and, if applicable, patency of venous reconstruction were considered. Bivariate differences were compared with the χ(2) test. Disease-specific survival was expressed by a life-table analysis and compared using the log-rank test. No postoperative mortality was observed in either group. Postoperative morbidity was 28% in group A and 11% in group B (P = .33). The mean duration of follow-up was 60 months (range, 13-140). Disease-specific survival was 60% in group A and 75% in group B at 3 years (P = .48), and it was 54% in group A and 62% in group B at 5 years (P = .63). Seven grafts were occluded in group A (39%) and 1of 3 were occluded in group B (33%) (P = .85). IVC and non-IVC LMS exhibit similar outcomes in terms of postoperative course and survival. Operative resection associated with vascular reconstruction, if applicable, eventually followed by radiation and chemotherapy may be curative and is associated with good functional results. Copyright © 2016 Elsevier Inc. All rights reserved.

  9. Ensino Superior em Administração e Percepção da Qualidade de Serviços: uma aplicação da escala SERVQUALEducation in Business Administration High and Services Quality Perception: a SERVQUAL scale applicationEducación Superior en Administración y Percepción de la Calidad de los Servicios: una aplicación de la escala SERVQUAL

    Directory of Open Access Journals (Sweden)

    LOURENÇO, Cléria Donizete da Silva

    2011-06-01

    Full Text Available RESUMOO estabelecimento de instrumentos de avaliação institucional, aptos a reconhecer a percepção discente, são de fundamental importância para a adequada prestação de serviços educacionais. Partindo desse princípio, o presente trabalho tem por objetivo verificar, por meio da escala SERVQUAL, a percepção de qualidade dos estudantes de Administração em uma IES particular do Sul de Minas Gerais. Para tanto, foi feita uma pesquisa de natureza descritiva. Os dados foram coletados por meio do questionário SERVQUAL adaptado à avaliação educacional. O universo de pesquisa correspondeu aos alunos do último período do curso de Administração. Estes foram selecionados devido à longevidade de seu contato com o curso e com a instituição. A análise de dados envolveu técnicas descritivas (distribuição de frequências e multivariadas (análise de conglomerados e discriminante. Em seus resultados o trabalho pôde identificar variáveis bem avaliadas e, também, estruturas, processos e condutas que devem ser aperfeiçoadas. O emprego de técnicas estatísticas permitiu a identificação de dois grupos (denominados de “mais exigentes” e “menos exigentes” e os atributos responsáveis pelos dissensos, que servirão de parâmetro para a priorização de processos de melhoria. Toda organização possui clientes com diferentes expectativas de qualidade. As instituições de ensino superior não fogem a essa regra. Assim, somente a identificação de atributos-chave para a percepção da qualidade e sua criteriosa análise é que podem dar início a processos efetivos de melhoria.ABSTRACTThe institutional evaluation instruments establishment, able to recognize the student perception, has its role of fundamental importance for the adequate educational services offer. From this principle, this paper aims to verify, through the SERVQUAL, the perceived quality of the administration students in a private school in the South of Minas

  10. Long-term retrieval of modified Günther Tulip vena cava Filters: an animal study.

    Science.gov (United States)

    Buecker, Arno; Behrendt, Florian F; Knüchel, Ruth; Kinzel, Sylvia; Mølgaard-Nielsen, Arne; Neuerburg, Joerg; Günther, Rolf W

    2007-10-01

    We modified the Günther Tulip Filter to allow long-term retrieval and tested this modified filter design in an animal experiment. Fourteen modified Günther Tulip Filters (Celect filter) were inserted percutaneously into the inferior venae cavae of 7 domestic adult sheep (2 filters per animal). Before removal, 3 months after filter placement, cavography was performed and the filters were removed. Subsequently, cavography was obtained to check for any signs of bleeding. All venae cavae were prepared, removed, and macroscopically examined for bleeding. Filter placement was easy and successfully performed in all cases. No thrombi were detected inside the filters. All cases showed some narrowing of the vena cava at the level, where the filter legs were connected with the vessel wall. Neither cavograms after filter removal nor macroscopic examinations of the perivascular vena cava tissue showed any significant bleeding. The modified Günther Tulip Filter allowed for successful and uncomplicated filter removal up to 3 months after placement.

  11. [Bilateral deep venous thrombosis and vena cava aplasia treated with local thrombolysis

    DEFF Research Database (Denmark)

    Pelta, A.M.; Jørgensen, Maja; Just, Sven Richardt Lundgren;

    2008-01-01

    In this case report the treatment of a young man with bilateral iliaco-femoral DVT and vena cava aplasia is presented. The patient was treated with catheter-directed thrombolysis; the catheters were introduced in the thrombus of both legs via v. popliteae. The treatment led to almost complete...

  12. Bilateral dyb venos trombose og vena cava-aplasi behandlet med lokal trombolyse

    DEFF Research Database (Denmark)

    Pelta, A.M.; Jorgensen, M.; Jensen, L.P.;

    2008-01-01

    In this case report the treatment of a young man with bilateral iliaco-femoral DVT and vena cava aplasia is presented. The patient was treated with catheter-directed thrombolysis; the catheters were introduced in the thrombus of both legs via v. popliteae. The treatment led to almost complete...

  13. Cranial vena cava syndrome secondary to cryptococcal mediastinal granuloma in a cat

    OpenAIRE

    2015-01-01

    The successful management of cranial vena cava syndrome with suspected secondary chylothorax due to mediastinal cryptococcal granuloma in a 4-year-old male domestic shorthair cat is described. Treatment included long-term antifungal medication, short-term corticosteroids, intermittent thoracocentesis, rutin, octreotide, and enalapril.

  14. Contabilidad Financiera Superior

    OpenAIRE

    Ipiñazar Petralanda, Izaskun

    2013-01-01

    Duración (en horas): De 31 a 40 horas. Destinatario: Estudiante y Docente A través de este material se presentan las pautas necesarias para implementar un aprendizaje basado en problemas en la asignatura de Contabilidad Financiera Superior dentro de los temas “Constitución de S.A. y S.R.L.” (Tema 2), “Ampliaciones de Capital” (Tema 3) y “Reducciones de Capital” (Tema 4). En primer lugar se presentan las guías generales de la asignatura, y a continuación, las diferentes activida...

  15. Contabilidad Financiera Superior

    OpenAIRE

    Ipiñazar Petralanda, Izaskun

    2013-01-01

    Duración (en horas): De 31 a 40 horas. Destinatario: Estudiante y Docente A través de este material se presentan las pautas necesarias para implementar un aprendizaje basado en problemas en la asignatura de Contabilidad Financiera Superior dentro de los temas “Constitución de S.A. y S.R.L.” (Tema 2), “Ampliaciones de Capital” (Tema 3) y “Reducciones de Capital” (Tema 4). En primer lugar se presentan las guías generales de la asignatura, y a continuación, las diferentes activida...

  16. Acute superior vena caval syndrome with airway obstruction following elective mediastinoscopy.

    LENUS (Irish Health Repository)

    Power, C K

    2012-02-03

    A 47-year-old female patient had a subclinical superior vena caval syndrome which developed into the \\'full blown\\' acute condition when she was placed into the left lateral position after mediastinoscopy. She developed airway obstruction requiring urgent re-intubation and subsequent admission to the intensive care unit. This subclinical condition might have been suspected pre-operatively if closer attention had been paid to the history, physical examination and review of the computerised axial tomography scan: she had a history of intermittent dysponea, wheeze and cough which was worse on waking and improved as the day progressed, she had a positive Pemberton\\'s sign and the computerised axial tomography scan showed that the lesion was encroaching on the superior vena cava.

  17. Breast varices: imaging findings of an unusual presentation of collateral pathways in superior vena caval syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Oezdemir, Ayseguel E-mail: aozdemir@tip.gazi.edu.tr; Ilgit, Erhan T.; Konus, Oeznur L.; Cetin, Meltem; Oezsunar, Yelda

    2000-11-01

    Imaging findings are presented of an unusual pathway of collateral circulation consisting of bilateral and diffuse dilated breast veins from a patient with long standing superior vena caval syndrome. The main importance of this case is the extent of the collateral development through the breast veins, serving as the major pathway of collateral circulation. Identification of this unusual collateral development, which resembles breast varices, was performed with contrast-enhanced chest CT scans, digital subtraction venography, color Doppler ultrasonography, and mammographic studies. Collateral development was secondary to a long segment idiopathic venous occlusion involving bilateral subclavian and brachiocephalic veins as well as vena cava superior. We conclude that dilated breast veins when detected on any imaging modality should raise the suspicion of central venous obstruction.

  18. Statistics of superior records

    Science.gov (United States)

    Ben-Naim, E.; Krapivsky, P. L.

    2013-08-01

    We study statistics of records in a sequence of random variables. These identical and independently distributed variables are drawn from the parent distribution ρ. The running record equals the maximum of all elements in the sequence up to a given point. We define a superior sequence as one where all running records are above the average record expected for the parent distribution ρ. We find that the fraction of superior sequences SN decays algebraically with sequence length N, SN˜N-β in the limit N→∞. Interestingly, the decay exponent β is nontrivial, being the root of an integral equation. For example, when ρ is a uniform distribution with compact support, we find β=0.450265. In general, the tail of the parent distribution governs the exponent β. We also consider the dual problem of inferior sequences, where all records are below average, and find that the fraction of inferior sequences IN decays algebraically, albeit with a different decay exponent, IN˜N-α. We use the above statistical measures to analyze earthquake data.

  19. Heart block and cardiac embolization of fractured inferior vena cava filter

    Directory of Open Access Journals (Sweden)

    Islam Abudayyeh

    2016-12-01

    Full Text Available Objective: A 66-year-old man underwent a placement of an inferior vena cava filter before a gastric surgery 9 years prior, presented to the emergency room with a complete atrioventricular block. Chest x-ray and transthoracic echocardiogram showed struts migrating to right ventricle with tricuspid regurgitation. Cardiothoracic surgery was consulted and declined an open surgical intervention due to the location of the embolized fragments and the patient’s overall condition. It was also felt that the fragments had migrated chronically and were adhered to the cardiac structures. Methods: The patient underwent a dual-chamber permanent pacemaker implantation. Post-implant fluoroscopy showed no displacement of the inferior vena cava filter struts due to the pacemaker leads indicating that the filter fracture had likely been a chronic process. Results: This case highlights a rare combination of complications related to inferior vena cava filter fractures and the importance of assessing for such fractures in chronic placements. Inferior vena cava filter placement for a duration greater than 1 month can be associated with filter fractures and strut migration which may lead to, although rare, serious or fatal complications such as complete atrioventricular conduction system disruption and valvular damage including significant tricuspid regurgitation. Conclusions: Assessing for inferior vena cava filter fractures in chronic filter placement is important to avoid such complications. When possible, retrieval of the filter should be considered in all patients outside the acute setting in order to avoid filter-related complications. Filter retrieval rates remain low even when a retrievable filter is in place and the patient no longer has a contraindication to anticoagulation.

  20. [Agenesis of the infrarenal inferior vena cava with thrombosis of the renal vein in a fetus: a case report].

    Science.gov (United States)

    Raposo Rodríguez, L; Recio Rodríguez, M; Alvarez Moreno, E; López Azorín, M

    2012-01-01

    Agenesis of the inferior vena cava, especially of the infrarenal segment, is exceptional. This condition is thought to result from thrombosis during gestation rather than from a true congenital malformation. Agenesis of the inferior vena cava can be associated with renal vein thrombosis, which in turn is related to suprarenal hemorrhage in the fetus. We present a case of agenesis of the inferior vena cava with preservation of the hepatic segment, thrombosis of the left renal vein, and secondary bilateral suprarenal hemorrhage diagnosed prenatally using sonography and magnetic resonance imaging.

  1. Escuela Superior de Palos Verdes

    Directory of Open Access Journals (Sweden)

    Neutra, Richard J.

    1965-02-01

    Full Text Available Before initiating the building operations for the «Palos Verdes» School, the site was divided into two large horizontal surfaces, at different levels. The lower one served to accommodate the playing fields, a car park, the physical training building, and shop and ancillary buildings. On the higher of these two surfaces, and to the West of the access road, there is a car park and also the building and plot of ground devoted to agricultural technology, as well as the literary studies and general purpose buildings. As a complement to these, there is a series of blocks, arranged in parallel rows, which house the administrative offices, the art school, the craft's school, the general classrooms, and those devoted to higher education. The fascinating aspect of this school is the outstanding penetration of the architect's mind into the essential function of the project. Its most evident merit is the sense of comradeship and harmony that permeates the whole architectural manifold.Antes de construir el complejo escolar «Palos Verdes» se comenzó por crear, en el terreno, dos grandes mesetas a niveles diferentes. Sobre el inferior se organizaron: los campos de juegos, de deportes, un aparcamiento, el edificio para educación física y los destinados a tiendas y servicios. Sobre la meseta superior, al oeste de la vía de acceso, se dispuso un aparcamiento y el edificio y campo para adiestramiento agrícola; al este, otro aparcamiento, el edificio dedicado a materias literarias, y el destinado a usos múltiples. Completan las instalaciones de la escuela una serie de bloques paralelos: la administración, la escuela de arte, las clases de trabajos manuales, las aulas de enseñanzas generales, y las de los cursos superiores. Lo fascinante de este complejo escolar es la perfecta y magistral compenetración del arquitecto con el tema proyectado, y su mayor mérito, la sensación de cordialidad y armonía con el ambiente.

  2. Descripción de factores sociodemográficos y socioafectivos y su relación con el desempeño académico de los estudiantes de cuarto semestre de psicología de una institución de educación superior

    Directory of Open Access Journals (Sweden)

    Ernesto L. Ravelo C

    2013-01-01

    Full Text Available Abstract This research paper has two purposes: a To describe the demographic features, family history, social affective factors and academic performance in fourth-semester students enrolled in day and night courses in the department of Psychology at the university, in order to define the Psychology students’ profiles and b To understand students’ relationships between demographic and social affective aspects compared with their academic performance. This research aims to establish the relationship between academic performance and students’ affective factors. There is no evidence of prior studies of these affective factors. A questionnaire about associated factors is designed and given to 122 fourth-semester students. The answers, factors, and indices are designed using statistical Winsteps and Rasch models in order to establish the relationship between factors and academic performance. AMOS, which allows the analysis of the relationship between factors and academic performance, is used as a tool to understand the impact of such relationships. The questionnaire given to the psychology students in this study supplied useful information using indices and factors to create psychology students’ profiles. The explanation of these factors about student performance is useful when the information is analyzed and takes into account sex and socio-economical levels, and not the whole group in general. Resumen El presente trabajo de investigación tuvo como objetivos: a Describir las características demográficas, la historia familiar, los factores socioafectivos y los factores académicos de los estudiantes de cuarto semestre de las jornadas diurna y nocturna de la facultad de Psicología de una institución de educación superior, con miras a definir una caracterización del estudiante de Psicología; y b Establecer la relación entre los factores demográficos y socioafectivos y el desempeño académico de los estudiantes. Se buscó establecer la

  3. Implante de filtro de veia cava com uso de dióxido de carbono como meio de contraste: série de casos Carbon dioxide use as contrast for vena cava filter implantation: case series

    Directory of Open Access Journals (Sweden)

    Matheus Pessanha de Rezende

    2012-03-01

    Full Text Available OBJETIVO: Avaliar o resultado do implante de filtro em veia cava inferior empregando angiografia digital por subtração com dioxide de carbono (CO2 como meio de contraste. MÉTODOS: No período de abril de 2010 a fevereiro de 2011, sete pacientes foram submetidos ao implante de filtro na veia cava inferior, utilizando-se CO2 como meio de contraste em subtração digital. Os pacientes apresentaram como critério de inclusão trombose venosa profunda no setor ilíaco-femoral e contraindicação à anticoagulação. RESULTADOS: Foi obtido sucesso técnico em todos os casos, com adequada visualização da veia cava e veias renais, não havendo complicações relacionadas ao uso do CO2 ou ao procedimento. CONCLUSÃO: O implante de filtro de veia cava utilizando o CO2 como meio de contraste é segura e efetiva em pacientes portadores de alergia ao contraste iodado ou com insuficiência renal não dialítica.OBJECTIVE: To assess the use of digital subtraction with carbon dioxide (CO2 for vena cava filter implant. METHODS: From April (2010 to February (2011, seven patients underwent inferior vena cava filter placement with digital subtraction angiography with the use of CO2 as contrast media. All patients had iliac and femoral deep venous thrombosis and contraindications for anticoagulation. RESULTS: Technical success was achieved in all cases. Inferior vena cava e renal veins were identified in all cases. There were no evidences of complications related to the use of CO2 during or after the procedure. CONCLUSION: The placement of inferior vena cava filter with CO2 and digital subtraction angiography is safe and effective with good results in patients with renal insufficiency and allergy to iodine.

  4. Malformação de veia cava inferior e trombose venosa profunda: fator de risco de trombose venosa em jovens Inferior vena cava malformation and deep venous thrombosis: a risk factor of venous thrombosis in the young

    Directory of Open Access Journals (Sweden)

    Renan Roque Onzi

    2007-06-01

    Full Text Available A ausência da veia cava inferior, alteração no processo de formação embriológica que ocorre entre a sexta e a oitava semanas de gestação, é uma rara anomalia congênita. Porém, recentemente foi confirmada como sendo um fator de risco importante para o desenvolvimento de trombose venosa profunda, especialmente em jovens. Apresentamos um caso de trombose em veias cava inferior, ilíacas, femorais e poplíteas num jovem de 16 anos com agenesia de um segmento de veia cava infra-renal e veia renal esquerda retroaórtica.Absence of inferior vena cava, caused by aberrant development within the sixth to eighth weeks of gestation, is a rare congenital anomaly. However, it has been recently confirmed as a major risk factor for the development of deep venous thrombosis, especially in young patients. We report a case of inferior vena cava, iliac, femoral and popliteal vein thrombosis in a 16-year-old patient with inferior vena cava agenesis and retroaortic left renal vein.

  5. Removal of a Guenther Tulip retrievable inferior vena cava filter after 147 days in a pediatric patient

    Energy Technology Data Exchange (ETDEWEB)

    Mody, Rekha N.; Stokes, LeAnn S.; Bream, Peter R.; Spottswood, Stephanie E. [Vanderbilt University Medical Center, Department of Radiology, Nashville, TN (United States)

    2006-05-15

    A Guenther Tulip retrievable inferior vena cava filter was placed in a 9-year-old boy with T-cell ALL who had both iliofemoral deep vein thrombosis (DVT) and acute intracranial hemorrhage. The filter was removed 147 days after placement, when the patient was no longer at increased risk for DVT or pulmonary embolus. Removal of the filter did not compromise flow through the vena cava. (orig.)

  6. Fístula axilo-cava para hemodiálise: relato de caso Axillary arteriovenous fistula for hemodialysis: case report

    Directory of Open Access Journals (Sweden)

    Yosio Nagato

    2009-12-01

    Full Text Available Na confecção de fístula arteriovenosa (FAV para hemodiálise, condutos venosos autógenos demonstram performance superior quando comparados com material protético em relação à perviedade primária ou secundária. A prótese de politetrafluoroetileno (PTFE é reservada para casos de falência de material autógeno e é geralmente utilizada em fístulas em membros superiores. Descrevemos o caso de uma paciente de 52 anos que, após falência de acessos para hemodiálise e impossibilidade de realização de diálise peritoneal em razão de peritonite bacteriana, foi submetida à confecção de FAV entre a artéria axilar direita e a veia cava inferior com prótese de PTFE de 6 mm. O acesso foi utilizado para hemodiálise 1 mês após sua criação e permanece pérvio após 24 meses. Até o momento, não houve complicações infecciosas, sinais de insuficiência cardíaca ou síndrome de roubo em membro superior direito.With regards to the creation of an arteriovenous fistula (AV fistula for hemodialysis, autogenous venous grafts clearly show high performance when compared with prosthetic material in terms of primary or secondary patency. Polytetrafluoroethylene (PTFE grafts for the reconstruction of AV fistulae must be restricted to cases of failure of the autogenous material, which is generally used in upper limb fistulae. We describe a case of a 52-year-old patient, who, after access failure for hemodialysis and the impossibility of performing peritoneal dialysis due to bacterial peritonitis, underwent the reconstruction of an AV fistula between the right axillary artery and the cava vein using a 6-mm PTFE prosthesis. One month after surgery, this AV fistula started to be used for hemodialysis. The AV fistula remains patent 24 months after its creation. No infectious complications, cardiac insufficiency symptoms, or steal syndromes of right upper limb were detected.

  7. Credito educativo, acciones afirmativas y equidad social en la educacion superior en Colombia

    National Research Council Canada - National Science Library

    Gomez Campo, Victor Manuel; Celis Giraldo, Jorge Enrique

    2009-01-01

    El credito educativo subsidiado y focalizado a estudiantes de los estratos socioeconomicos mas bajos ha sido propuesto como una politica social de acceso con equidad a la educacion superior (Programa ACCES...

  8. Congenital inferior vena cava anomalies: a review of findings at multidetector computed tomography and magnetic resonance imaging

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Catherine; Trad, Clovis Simao [Central de Diagnostico Ribeirao Preto (CEDIRP), SP (Brazil); Trad, Henrique Simao, E-mail: hstrad@terra.com.br [Central de Diagnostico Ribeirao Preto (CEDIRP), SP (Brazil); Universidade de Sao Paulo (HC-FMRPUSP), Ribeirao Preto, SP (Brazil). Fac. de Medicina. Hospital das Clinicas; Mendonca, Silvana Machado [Clinica de Diagnostico por Imagem (CDPI), Rio de Janeiro, RJ (Brazil)

    2013-06-15

    Inferior vena cava anomalies are rare, occurring in up to 8.7% of the population, as left renal vein anomalies are considered. The inferior vena cava develops from the sixth to the eighth gestational weeks, originating from three paired embryonic veins, namely the subcardinal, supracardinal and postcardinal veins. This complex ontogenesis of the inferior vena cava, with multiple anastomoses between the pairs of embryonic veins, leads to a number of anatomic variations in the venous return from the abdomen and lower limbs. Some of such variations have significant clinical and surgical implications related to other cardiovascular anomalies and in some cases associated with venous thrombosis of lower limbs, particularly in young adults. The authors reviewed images of ten patients with inferior vena cava anomalies, three of them with deep venous thrombosis. The authors highlight the major findings of inferior vena cava anomalies at multidetector computed tomography and magnetic resonance imaging, correlating them the embryonic development and demonstrating the main alternative pathways for venous drainage. The knowledge on the inferior vena cava anomalies is critical in the assessment of abdominal images to avoid misdiagnosis and to indicate the possibility of associated anomalies, besides clinical and surgical implications. (author)

  9. Congenital inferior vena cava anomalies: a review of findings at multidetector computed tomography and magnetic resonance imaging

    Directory of Open Access Journals (Sweden)

    Catherine Yang

    2013-07-01

    Full Text Available Inferior vena cava anomalies are rare, occurring in up to 8.7% of the population, as left renal vein anomalies are considered. The inferior vena cava develops from the sixth to the eighth gestational weeks, originating from three paired embryonic veins, namely the subcardinal, supracardinal and postcardinal veins. This complex ontogenesis of the inferior vena cava, with multiple anastomoses between the pairs of embryonic veins, leads to a number of anatomic variations in the venous return from the abdomen and lower limbs. Some of such variations have significant clinical and surgical implications related to other cardiovascular anomalies and in some cases associated with venous thrombosis of lower limbs, particularly in young adults. The authors reviewed images of ten patients with inferior vena cava anomalies, three of them with deep venous thrombosis. The authors highlight the major findings of inferior vena cava anomalies at multidetector computed tomography and magnetic resonance imaging, correlating them the embryonic development and demonstrating the main alternative pathways for venous drainage. The knowledge on the inferior vena cava anomalies is critical in the assessment of abdominal images to avoid misdiagnosis and to indicate the possibility of associated anomalies, besides clinical and surgical implications.

  10. Una Aproximación a un Sistema de Indicadores para Evaluar la Integración de las Tic en las Instituciones de Educación Superior / An approximation to a system of indicators to assess the integration of ict in higher education institutions

    Directory of Open Access Journals (Sweden)

    Pedro Nolasco Vázquez

    2016-12-01

    Full Text Available La evaluación de la incorporación tecnológica en la educación superior es un tema de alta relevancia social. Esta investigación tiene como objetivo mostrar la viabilidad del uso de los sistemas de indicadores como alternativa para evaluar la incorporación de las tecnologías de información y comunicaciones (TIC a las universidades. Tradicionalmente se ha utilizado el enfoque de la ingeniería de procesos, donde la propuesta más importante es la del Capability Maturity Model (Duarte y Ventura, 2011; sin embargo, este enfoque no considera la relación de las personas con la tecnología, lo que puede dificultar la implementación de proyectos tecnológicos (Saga & Zmud, 1994; Quijano, 2007; Zubieta, 2011. La relación humana-tecnológica como indicador de la integración tiene sentido porque se entiende que en la medida en que esta relación se incrementa se cuenta con una aplicación tecnológica que se identifica con las tareas cotidianas y estratégicas de la organización; esto es fundamental en organizaciones como las instituciones de educación superior. En este trabajo se reporta un estudio de caso: la aplicación del sistema de indicadores de Nolasco y Ojeda (2016 en la Universidad Veracruzana (UV, aplicación que se fundamenta en la relación humano-tecnológica de la “Aceptación”, “Rutinización” e “Infusión” de Saga y Zmud (1994. A partir de esta aplicación se realiza un diagnóstico y se derivan las áreas de oportunidad. An approximation to a system of indicators to assess the integration of ict in higher education institutions Abstract The evaluation of technological incorporation in higher education is an issue of high social relevance. This research aims to show the feasibility of using the indicator systems as an alternative to evaluate the incorporation of information and communication technologies (ICT to universities. Traditionally the process engineering approach has been used, where the most important

  11. Sobredentadura total superior implantosoportada Superior total overdenture on implants

    Directory of Open Access Journals (Sweden)

    Luis Orlando Rodríguez García

    2010-06-01

    Full Text Available Se presenta un caso de un paciente desdentado total superior, rehabilitado en la consulta de implantología de la Clínica "Pedro Ortiz" del municipio Habana del Este en Ciudad de La Habana, Cuba, en el año 2009, mediante prótesis sobre implantes osteointegrados, técnica que se ha incorporado a la práctica estomatológica en Cuba como alternativa al tratamiento convencional en los pacientes desdentados totales. Se siguió un protocolo que comprendió una fase quirúrgica, procedimiento con o sin realización de colgajo y carga precoz o inmediata. Se presenta un paciente masculino de 56 años de edad, que acudió a la consulta multidisciplinaria, preocupado, porque se le habían elaborado tres prótesis en los últimos dos años y ninguna reunía los requisitos de retención que él necesitaba para sentirse seguro y cómodo con las mismas. El resultado final fue la satisfacción total del paciente, con el mejoramiento de la calidad estética y funcional.This is the case of a total maxilla edentulous patient seen in consultation of the "Pedro Ortíz" Clinic Implant of Habana del Este municipality in 2009 and con rehabilitation by prosthesis over osteointegration implants added to stomatology practice in Cuba as an alternative to conventional treatment in patients totally edentulous. We follow a protocol including a surgery or surgical phase, technique without or with flap creation and early or immediate load. This is a male patient aged 56 came to our multidisciplinary consultation worried because he had three prostheses in last two years and any fulfilled the requirements of retention to feel safe and comfortable with prostheses. The final result was the total satisfaction of rehabilitated patient improving its aesthetic and functional quality.

  12. Entrapment of Guide Wire in an Inferior Vena Cava Filter: A Technique for Removal

    Energy Technology Data Exchange (ETDEWEB)

    Abdel-Aal, Ahmed Kamel, E-mail: akamel@uabmc.edu; Saddekni, Souheil [University of Alabama at Birmingham, Department of Radiology (United States); Hamed, Maysoon Farouk [University of Alabama at Birmingham, Department of Anesthesia (United States); Fitzpatrick, Farley [Radiology Specialists of Louisville (United States)

    2013-04-15

    Entrapment of a central venous catheter (CVC) guide wire in an inferior vena cava (IVC) filter is a rare, but reported complication during CVC placement. With the increasing use of vena cava filters (VCFs), this number will most likely continue to grow. The consequences of this complication can be serious, as continued traction upon the guide wire may result in filter dislodgement and migration, filter fracture, or injury to the IVC. We describe a case in which a J-tipped guide wire introduced through a left subclavian access without fluoroscopic guidance during CVC placement was entrapped at the apex of an IVC filter. We describe a technique that we used successfully in removing the entrapped wire through the left subclavian access site. We also present simple useful recommendations to prevent this complication.

  13. Percutaneous retrieval of a vena cava filter from the right atrium: case report

    Energy Technology Data Exchange (ETDEWEB)

    Rasuli, P. [The Ottawa Hospital and University of Ottawa, Dept. of Radiology, Ottawa, Ontario (Canada); Mehran, R. [The Ottawa Hospital and University of Ottawa, Dept. of Thoracic Surgery, Ottawa, Ontario (Canada); French, G. [The Ottawa Hospital and University of Ottawa, Dept. of Radiology, Ottawa, Ontario (Canada); Turek, M. [The Ottawa Hospital and University of Ottawa, Dept. of Internal Medicine, Ottawa, Ontario (Canada); Lalonde, K.A. [The Ottawa Hospital and University of Ottawa, Dept. of Thoracic Surgery, Ottawa, Ontario (Canada); Cardinal, P. [The Ottawa Hospital and University of Ottawa, Dept. of Internal Medicine, Ottawa, Ontario (Canada)

    2000-07-01

    Migration of vena cava filters can occur spontaneously, but it can also occur as a result of entanglement of the filter with a guidewire, particularly during 'blind' (unguided) insertion of a central venous line. When a filter migrates to the heart, traditional practice has been either to leave the filter in place or to remove it surgically by means of open heart surgery and cardiopulmonary bypass. We found only 6 reports of successful percutaneous retrieval or repositioning of a vena cava filter (Table 1). We describe a new interventional technique for retrieving a filter from the right atrium and a novel endosurgical method for removing a filter from the innominate vein. (author)

  14. Techniques used for difficult retrievals of the Günther Tulip inferior vena cava filter: experience in 32 patients.

    Science.gov (United States)

    Van Ha, Thuong G; Vinokur, Olga; Lorenz, Jonathan; Regalado, Sidney; Zangan, Steven; Piano, Giancarlo; Funaki, Brian

    2009-01-01

    To retrospectively review experience with difficult retrievals of Günther Tulip filters (GTFs) in which various techniques were used. From December 2004 to December 2006, 32 patients were referred to a single radiology department for GTF retrieval (25 women and seven men; mean age, 40 years; range, 21-60 y). All patients were evaluated, and 22 of these patients had undergone unsuccessful filter retrieval attempts elsewhere. In the remaining patients, significant tilt of the filter (n = 8) or difficult internal jugular vein access (n = 2) discouraged retrieval attempts. There were a total of 38 filters. Twenty-five patients had a filter in the infrarenal inferior vena cava (IVC). Among the remaining seven patients, six had bilateral iliac filters and one had a left iliac filter. Retrievals were performed via conventional technique-ie, by snaring the hook of the filter without additional maneuvers-or other techniques. Thirty-seven of 38 filters were successfully removed, for a success rate of 97%. Successful retrievals were performed with conventional (n = 4), catheter twist (n = 3), modified snare (n = 15), loop snare (n = 14), and balloon dilation (n = 1) techniques. The average dwell time for filters successfully removed was 58 days (range, 22-258 d). One failure occurred in a patient who had undergone unsuccessful retrieval previously. The hook of the filter and a displaced secondary strut, which had migrated superiorly, were incorporated into the IVC wall in this case. Additional maneuvers were useful in these difficult retrievals of GTFs that might not otherwise be retrievable with the conventional method.

  15. Antimicrobial, Antioxidant, and Anticancer Activities of Biosynthesized Silver Nanoparticles Using Marine Algae Ecklonia cava.

    Science.gov (United States)

    Venkatesan, Jayachandran; Kim, Se-Kwon; Shim, Min Suk

    2016-12-06

    Green synthesis of silver nanoparticles (AgNPs) has gained great interest as a simple and eco-friendly alternative to conventional chemical methods. In this study, AgNPs were synthesized by using extracts of marine algae Ecklonia cava as reducing and capping agents. The formation of AgNPs using aqueous extract of Ecklonia cava was confirmed visually by color change and their surface plasmon resonance peak at 418 nm, measured by UV-visible spectroscopy. The size, shape, and morphology of the biosynthesized AgNPs were observed by transmission electron microscopy and dynamic light scattering analysis. The biosynthesized AgNPs were nearly spherical in shape with an average size around 43 nm. Fourier transform-infrared spectroscopy (FTIR) analysis confirmed the presence of phenolic compounds in the aqueous extract of Ecklonia cava as reducing and capping agents. X-ray diffraction (XRD) analysis was also carried out to demonstrate the crystalline nature of the biosynthesized AgNPs. Antimicrobial results determined by an agar well diffusion assay demonstrated a significant antibacterial activity of the AgNPs against Escherichia coli and Staphylococcus aureus. Antioxidant results determined by 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging assay revealed an efficient antioxidant activity of the biosynthesized AgNPs. The biosynthesized AgNPs also exhibited a strong apoptotic anticancer activity against human cervical cancer cells. Our findings demonstrate that aqueous extract of Ecklonia cava is an effective reducing agent for green synthesis of AgNPs with efficient antimicrobial, antioxidant, and anticancer activities.

  16. Serial repositioning of a Guenther tulip retrievable inferior vena cava filter in a pediatric patient

    Energy Technology Data Exchange (ETDEWEB)

    Haider, Ehsan A.; Rosen, J. Choi; Torres, Carlos; Valenti, David A. [McGill University Health Center, Department of Radiology, Montreal, QC (Canada)

    2005-11-01

    We report an 11-year-old boy who required inferior vena cava (IVC) filtration for a prolonged period of time. A retrievable IVC filter was placed and repositioned three times, providing a total of 60 days of IVC filtration. The filter was removed when his risk of pulmonary embolus had decreased substantially. This is a relatively uncommon practice in the pediatric population. The technique is presented, and the available literature is reviewed. (orig.)

  17. Prenatal Calcification of the Inferior Vena Cava and Renal Veins in a Normal Neonate

    Directory of Open Access Journals (Sweden)

    Daniel Ranch

    2006-01-01

    Full Text Available Prenatal calcification of the inferior vena cava (IVC and renal veins is a rare condition with unclear etiology and prognosis. It occurs with renal vein thrombosis in utero and is associated with congenital anomalies and abnormal prenatal hemodynamic status. We report a rare case of prenatal IVC and renal vein calcification in a normal neonate without any history of compromised prenatal or perinatal condition, or significant deterioration of kidney function.

  18. A case of renal cell carcinoma with an extensive inferior vena cava thrombosis

    Directory of Open Access Journals (Sweden)

    Majd Alfreijat

    2016-10-01

    Full Text Available Renal cell carcinoma (RCC is the most prevalent primary renal malignant neoplasm in adults. Most of the cases are usually found incidentally. It is commonly associated with venous thrombosis. We demonstrate a case of a RCC which was associated with an extensive thrombus that reached the upper part of the inferior vena cava (IVC. We also perform a brief literature review about the association between RCC and IVC thrombosis.

  19. Klippel-Trenaunay syndrome with gastrointestinal bleeding,splenic hemangiomas and left inferior vena cava

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    Klippel-Trenaunay syndrome is a congenital vascular anomaly characterized by a triad of varicose veins,cutaneous capillary malformation,and hypertrophy of bone and(or)soft tissue.Gastrointestinal vascular malformations in Klippel-Trenaunay syndrome may present with gastrointestinal bleeding.The majority of patients with spleenic hemangiomatosis and/or left inferior vena cava are asymptomatic.We herein report a case admitted to the gastroenterology clinic with life-threatening hematochezia and symptomatic ir...

  20. una comunidad

    Directory of Open Access Journals (Sweden)

    Adriana Hernández García

    2006-01-01

    embargo, el desarrollo generó mayores desigualdades económicas entre las poblaciones urbanas y las rurales, así como efectos de contaminación del medio ambiente y escasez de los recursos naturales. En este trabajo se presentan los puntos de encuentros locales, la historia, identidad y simbolismos que mantienen una visión de la vida comunal; los desencuentros frente al desarrollo aplicado en la localidad; los cambios en los patrones de cultivo y de la pesca, así como la migración como uno de los principales efectos del cambio.

  1. Compartment syndrome in patients with massive venous thrombosis after inferior vena cava filter placement.

    Science.gov (United States)

    Mesfin, Addisu; Lum, Ying Wei; Nayfeh, Tariq; Mears, Simon C

    2011-03-11

    Massive venous thrombosis, which can occur acutely after inferior vena cava filter placement, has 2 forms: phlegmasia cerulea dolens and phlegmasia alba dolens. In phlegmasia cerulea dolens, complete occlusion of venous outflow occurs. In the milder phlegmasia alba dolens version, collateral venous flow out of the limb remains despite the venous thrombosis. This article presents, to our knowledge, the first 2 cases of massive venous thrombosis (1 phlegmasia cerulea dolens, 1 phlegmasia alba dolens) below inferior vena cava filters occurring after the acute period. Phlegmasia cerulea dolens and phlegmasia alba dolens can present as compartment syndrome. Prompt fasciotomies were performed, but the underlying massive venous thrombosis was not addressed surgically. Phlegmasia cerulea dolens and phlegmasia alba dolens have high morbidity and mortality. The patient with phlegmasia alba dolens required leg and thigh fasciotomies and eventually required an above-knee amputation. The patient with phlegmasia cerulea dolens developed compartment syndrome in the left leg, right leg, and right thigh. Although he underwent decompression of all of these compartments, he died from multiple organ failure. A multidisciplinary approach with the vascular service and the intensivists is required in the treatment of patients with massive venous thrombosis. Treatment goals include preventing additional propagation of the thrombus via anticoagulation, with strong consideration for catheter-directed thrombolysis or thrombectomy and fasciotomies for compartment syndrome. The orthopedic surgeon should keep phlegmasia cerulea dolens and phlegmasia alba dolens in the differential for compartment syndrome, especially in patients who have had a history of acute or chronic inferior vena cava filter placement.

  2. Safety and efficacy of the Gunther Tulip retrievable vena cava filter: midterm outcomes.

    Science.gov (United States)

    Hoffer, Eric K; Mueller, Rebecca J; Luciano, Marcus R; Lee, Nicole N; Michaels, Anne T; Gemery, John M

    2013-08-01

    To evaluate of the medium-term integrity, efficacy, and complication rate associated with the Gunther Tulip vena cava filter. A retrospective study was performed of 369 consecutive patients who had infrarenal Gunther Tulip inferior vena cava filters placed over a 5-year period. The mean patient age was 61.8 years, and 59% were men. Venous thromboembolic disease and a contraindication to or complication of anticoagulation were the indications for filter placement in 86% of patients; 14% were placed for prophylaxis in patients with a mean of 2.3 risk factors. Follow-up was obtained by review of medical and radiologic records. Mean clinical follow-up was 780 days. New or recurrent pulmonary embolus occurred in 12 patients (3.3%). New or recurrent deep-vein thrombosis occurred in 53 patients (14.4%). There were no symptomatic fractures, migrations, or caval perforations. Imaging follow-up in 287 patients (77.8%) at a mean of 731 days revealed a single (0.3%) asymptomatic fracture, migration greater than 2 cm in 36 patients (12.5%), and no case of embolization. Of 122 patients with CT scans, asymptomatic perforations were identified in 53 patients (43.4%) at a mean 757 days. The Gunther Tulip filter was safe and effective at 2-year follow-up. Complication rates were similar to those reported for permanent inferior vena cava filters.

  3. Leiomyosarcoma of the inferior vena cava level II involvement: curative resection and reconstruction of renal veins

    Directory of Open Access Journals (Sweden)

    Wang Quan

    2012-06-01

    Full Text Available Abstract Leiomyosarcoma of the inferior vena cava (IVCL is a rare retroperitoneal tumor. We report two cases of level II (middle level, renal veins to hepatic veins IVCL, who underwent en bloc resection with reconstruction of bilateral or left renal venous return using prosthetic grafts. In our cases, IVCL is documented to be occluded preoperatively, therefore, radical resection of tumor and/or right kidney was performed and the distal end of inferior vena cava was resected and without caval reconstruction. None of the patients developed edema or acute renal failure postoperatively. After surgical resection, adjuvant radiation therapy was administrated. The patients have been free of recurrence 2 years and 3 months, 9 months after surgery, respectively, indicating the complete surgical resection and radiotherapy contribute to the better survival. The reconstruction of inferior vena cava was not considered mandatory in level II IVCL, if the retroperitoneal venous collateral pathways have been established. In addition to the curative resection of IVCL, the renal vascular reconstruction minimized the risks of procedure-related acute renal failure, and was more physiologically preferable. This concept was reflected in the treatment of the two patients reported on.

  4. Safety and Efficacy of the Gunther Tulip Retrievable Vena Cava Filter: Midterm Outcomes

    Energy Technology Data Exchange (ETDEWEB)

    Hoffer, Eric K., E-mail: eric.k.hoffer@hitchcock.org; Mueller, Rebecca J.; Luciano, Marcus R.; Lee, Nicole N.; Michaels, Anne T.; Gemery, John M. [Dartmouth-Hitchcock Medical Center, Department of Radiology, Section of Vascular and Interventional Radiology (United States)

    2013-08-01

    PurposeTo evaluate of the medium-term integrity, efficacy, and complication rate associated with the Gunther Tulip vena cava filter.MethodsA retrospective study was performed of 369 consecutive patients who had infrarenal Gunther Tulip inferior vena cava filters placed over a 5-year period. The mean patient age was 61.8 years, and 59 % were men. Venous thromboembolic disease and a contraindication to or complication of anticoagulation were the indications for filter placement in 86 % of patients; 14 % were placed for prophylaxis in patients with a mean of 2.3 risk factors. Follow-up was obtained by review of medical and radiologic records.ResultsMean clinical follow-up was 780 days. New or recurrent pulmonary embolus occurred in 12 patients (3.3 %). New or recurrent deep-vein thrombosis occurred in 53 patients (14.4 %). There were no symptomatic fractures, migrations, or caval perforations. Imaging follow-up in 287 patients (77.8 %) at a mean of 731 days revealed a single (0.3 %) asymptomatic fracture, migration greater than 2 cm in 36 patients (12.5 %), and no case of embolization. Of 122 patients with CT scans, asymptomatic perforations were identified in 53 patients (43.4 %) at a mean 757 days.ConclusionThe Gunther Tulip filter was safe and effective at 2-year follow-up. Complication rates were similar to those reported for permanent inferior vena cava filters.

  5. First Evidence that Ecklonia cava-Derived Dieckol Attenuates MCF-7 Human Breast Carcinoma Cell Migration

    Directory of Open Access Journals (Sweden)

    Eun-Kyung Kim

    2015-03-01

    Full Text Available We investigated the effect of Ecklonia cava (E. cava-derived dieckol on movement behavior and the expression of migration-related genes in MCF-7 human breast cancer cell. Phlorotannins (e.g., dieckol, 6,6′-biecko, and 2,7″-phloroglucinol-6,6′-bieckol were purified from E. cava by using centrifugal partition chromatography. Among the phlorotannins, we found that dieckol inhibited breast cancer cell the most and was selected for further study. Radius™-well was used to assess cell migration, and dieckol (1–100 µM was found to suppress breast cancer cell movement. Metastasis-related gene expressions were evaluated by RT-PCR and Western blot analysis. In addition, dieckol inhibited the expression of migration-related genes such as matrix metalloproteinase (MMP-9 and vascular endothelial growth factor (VEGF. On the other hand, it stimulated the expression of tissue inhibitor of metalloproteinase (TIMP-1 and TIMP-2. These results suggest that dieckol exerts anti-breast cancer activity via the regulation of the expressions of metastasis-related genes, and this is the first report on the anti-breast cancer effect of dieckol.

  6. Effect of phlorotannins isolated from Ecklonia cava on angiotensin I-converting enzyme (ACE) inhibitory activity.

    Science.gov (United States)

    Wijesinghe, W A J P; Ko, Seok-Chun; Jeon, You-Jin

    2011-04-01

    Inhibition of angiotensin I-converting enzyme (ACE) activity is the most common mechanism underlying the lowering of blood pressure. In the present study, five organic extracts of a marine brown seaweed Ecklonia cava were prepared by using ethanol, ethyl acetate, chloroform, hexane, and diethyl ether as solvents, which were then tested for their potential ACE inhibitory activities. Ethanol extract showed the strongest ACE inhibitory activity with an IC(50) value of 0.96 mg/ml. Five kinds of phlorotannins, phloroglucinol, triphlorethol-A, eckol, dieckol, and eckstolonol, were isolated from ethanol extract of E. cava, which exhibited potential ACE inhibition. Dieckol was the most potent ACE inhibitor and was found to be a non-competitive inhibitor against ACE according to Lineweaver-Burk plots. Dieckol had an inducible effect on the production of NO in EAhy926 cells without having cytotoxic effect. The results of this study indicate that E. cava could be a potential source of phlorotannins with ACE inhibitory activity for utilization in production of functional foods.

  7. Proceso de la educación superior en Colombia

    Directory of Open Access Journals (Sweden)

    Jorge Eliécer Ruíz

    1968-01-01

    Full Text Available Que las instituciones presentan características congruentes con la realidad que las sustenta, no es un hallazgo tortuoso ni una verdad cuyo descubrimiento debamos a los esfuerzos dialécticos del marxismo. Desgraciadamente al no contar con una historia confiable de nuestra sociedad y de nuestras instituciones, hemos de apelar a testimonios aislados que nos permitan inferir lo que ha sido la educación, y principalmente la educación superior, dentro del proceso evolutivo de nuestro pueblo.

  8. Acute iliofemoral venous thrombosis in patients with atresia of the inferior vena cava can be treated successfully with catheter-directed thrombolysis

    DEFF Research Database (Denmark)

    Broholm, Rikke; Jørgensen, Maja; Just, Sven;

    2011-01-01

    To assess the effectiveness and clinical outcomes of catheter-directed thrombolysis in patients with atresia of the inferior vena cava (IVC) and acute iliofemoral deep vein thrombosis (DVT).......To assess the effectiveness and clinical outcomes of catheter-directed thrombolysis in patients with atresia of the inferior vena cava (IVC) and acute iliofemoral deep vein thrombosis (DVT)....

  9. Argentina: etapa superior del subdesarrollo

    OpenAIRE

    De Santis, Gerardo Fabián; Barberis, Julián

    2012-01-01

    Acertadamente Furtado planteó que el subdesarrollo no es una etapa previa al desarrollo, y por ello comprender dicho proceso es necesario para entender que hay una relación asimétrica entre las economías del centro y la periferia, y que ello implica la necesidad de políticas distintas para cada una. En esta nota se plantea el marco en el cual tuvieron origen las economías subdesarrolladas, y un abordaje inicial sobre el proceso de acumulación de las mismas a partir del estudio del excedente, ...

  10. Hemorragia adrenal bilateral com trombose da veia renal direita e veia cava inferior em um recém-nascido Bilateral adrenal hemorrhage associated with right renal vein and inferior vena cava thrombosis in a newborn

    Directory of Open Access Journals (Sweden)

    Severino Aires de Araújo Neto

    2003-10-01

    Full Text Available Os autores apresentam um caso de um recém-nascido com um tipo raro de associação de hemorragia adrenal bilateral com trombose de veia renal direita e de veia cava inferior, em que os exames de ultra-sonografia e tomografia computadorizada exerceram papel crucial no estabelecimento do diagnóstico, orientação da conduta e seguimento do paciente.We report a rare case of coexisting bilateral adrenal hemorrhage, right renal vein and inferior vena cava thrombosis in a neonate. Imaging studies played an important role in the diagnosis, management, and follow-up of this patient.

  11. On-and offshore tephrostratigraphy and -chronology of the southern Central American Volcanic Arc (CAVA)

    Science.gov (United States)

    Schindlbeck, J. C.; Kutterolf, S.; Hemming, S. R.; Wang, K. L.

    2015-12-01

    Including the recently drilled CRISP sites (IODP Exp. 334&344) the deep sea drilling programs have produced 69 drill holes at 29 Sites during 9 Legs at the Central American convergent margin, where the Cocos plate subducts beneath the Caribbean plate. The CAVA produced numerous plinian eruptions in the past. Although abundant in the marine sediments, information and data regarding large late Cenozoic explosive eruptions from Costa Rica, Nicaragua, Honduras, El Salvador, and Guatemala remain very sparse and discontinuous on land. We have established a tephrostratigraphy from recent through Miocene times from the unique archive of ODP/IODP sites offshore Central America in which we identify tephra source regions by geochemical fingerprinting using major and trace element glass shard compositions. Here we present first order correlations of ­~500 tephra layers between multiple holes at a single site as well as between multiple sites. We identified ashes supporting Costa Rican (~130), Nicaraguan (17) and Guatemalan (27) sources as well as ~150 tephra layers from the Galápagos hotspot. Within our marine record we also identified well-known marker beds such as the Los Chocoyos tephra from Atitlán Caldera in Guatemala and the Tiribi Tuff from Costa Rica but also correlations to 15 distinct deposits from known Costa Rican and Nicaraguan eruptions within the last 4.1 Ma. These correlations, together with new radiometric age dates, provide the base for an improved tephrochronostratigraphy in this region. Finally, the new marine record of explosive volcanism offshore southern CAVA provides insights into the eruptive history of long-living volcanic complexes (e.g., Barva, Costa Rica) and into the distribution and frequency of large explosive eruptions from the Galápagos hotspot. The integrated approach of Ar/Ar age dating, correlations with on land deposits from CAVA, biostratigraphic ages and sediment accumulation rates improved the age models for the drilling sites.

  12. Long-term retrieval success rate profile for the Günther Tulip vena cava filter.

    Science.gov (United States)

    Smouse, H Bob; Rosenthal, David; Thuong, Van Ha; Knox, Michael F; Dixon, Robert G; Voorhees, William D; McCann-Brown, Jennifer A

    2009-07-01

    To evaluate the likelihood of successful retrieval of the Günther Tulip vena cava filter after various implant durations (up to 494 days). Retrievable Günther Tulip filters were placed in 554 patients. All patients satisfied requirements for filter placement; the primary indication for placement was specified for 394 patients (71%), as follows: unspecified trauma (n = 164), bariatric procedures (n = 128), orthopedic procedures (n = 36), and other (n = 66). Filter tilt and vena cava injury were assessed at implantation. Filters were not repositioned after placement. At retrieval, filter orientation, vena cava injury, other device-related incidents, and the degree of difficulty associated with retrieval were reported. Filter retrieval was attempted in 275 patients and successful in 248 (90.2%). The mean filter indwell time was 58.9 days (range, 3-494 days). Unsuccessful retrievals (n = 27) were attributed primarily to improper hook orientation (n = 10) or excessive tissue in-growth at the filter legs (n = 16). Of the remaining 279 patients, 223 withdrew from the study, 41 were associated with a decision to keep the filter as a permanent device, 13 died for reasons unrelated to the study, and two had no reported endpoint data. A Kaplan-Meier product-limit survival estimate revealed that the probability of successful device retrieval remained greater than 94% at 12 weeks and greater than 67% at 26 weeks. This study contributes to the body of clinical data related to retrievable filters, demonstrating reliable retrieval rates at 12 weeks, with successful retrievals up to 17 months after implantation.

  13. Uterus transplantation model in sheep with heterotopic whole graft and aorta and cava anastomoses.

    Science.gov (United States)

    Gonzalez-Pinto, I M; Tryphonopoulos, P; Avison, D L; Nishida, S; Tekin, A; Santiago, S; Tzakis, A G

    2013-06-01

    Uterine transplantation in the sheep model has been described as a partial or whole orthotopic graft from a living donor with vascular anastomoses. As an alternative to surrogate pregnancy or adoption uterus transplantation might be indicated for cases of infertility of uterine origin. The main complications might be rejection and thrombosis. The objective of this work was to develop a model of whole uterus transplantation that was applicable to the human setting, using grafts obtained from brain-dead donors, and suitable for immunologic and viability follow-up with a reduced risk of thrombosis. Two donors and 1 recipient were operated. The first graft was used for an anatomic study; the second was used for transplantation. The donor operation consisted of an en bloc harvest of the uterus, adnexa, and proximal vagina with the distal aorta and cava. After harvest the donor sheep was humanely killed. In the recipient ewe, heterotopic implantation was performed in the lower abdomen. An End-to-side anastomoses of aorta and cava were performed below the recipient's renal vessels. A cutaneous vaginal stoma was performed in the right lower quadrant. The recipient ewe was humanely killed for an autopsy study. The anatomy of uterine veins of the ewe differs from the human. The uterine and ovarian veins join, forming the utero-ovarian vein, which drains at the confluence of the common iliac to the cava. En bloc harvesting allows for rapid graft preparation, with vascular cuffs easily anastomosed with a low risk of thrombosis. The vaginal stoma seems appropriate to facilitate follow-up and graft biopsy. This approach can be a suitable experimental model applicable to humans using grafts from brain-dead donors.

  14. Research progress in the application of inferior vena cava filter on acute venous thrombosis

    Institute of Scientific and Technical Information of China (English)

    Ioannis Stefanidis; George Galyfos; Stavros Kerasidis; Ioannis Stamatatos; Georgios Geropapas; Sotirios Giannakakis; Georgios Kastrisios; Gerasimos Papacharalampous; Chrisostomos Maltezos

    2015-01-01

    Anticoagulant therapy using heparins or per os vitamin K antagonists has been the treatment of choice in patients with venous thromboembolic disease for decades. However, the introduction of inferior vena cava (IVC) filters recently has provided new therapeutic choices appropriate for specific groups of patients with venous thromboembolic disease. This review aims to present all current evidence on the indications and precautions for the proper IVC filters utilization. There is still a great challenge in identifying the proper populations that would benefit from an IVC filter implantation or extraction. New randomized trials are needed to produce safe and clear guidelines of proper use.

  15. Lumbar artery pseudoaneurysm caused by a Gunther Tulip inferior vena cava filter.

    Science.gov (United States)

    Skeik, Nedaa; McEachen, James C; Stockland, Andrew H; Wennberg, Paul W; Shepherd, Roger F J; Shields, Raymond C; Andrews, James C

    2011-11-01

    Inferior vena cava (IVC) filters are widely used to decrease the risk of pulmonary embolism in patients with contraindications to anticoagulation. Complications include local hematoma, access site deep venous thrombosis (DVT), filter migration and embolization, leg penetration through the IVC wall, IVC occlusion, and filter fracture with embolization. Other rare complications include leg penetration into adjacent organs including duodenum and ureter. Lumbar artery pseudoaneurysms are rare and may be spontaneous, iatrogenic, or traumatic. To date, there have been 3 case reports of lumbar artery pseudoaneurysms caused by IVC filters. We present an additional case of a lumbar artery pseudoaneurysm caused by a Gunther Tulip IVC filter treated successfully with selective embolization.

  16. Rectal cancer presenting tumor thrombosis in the inferior vena cava and common iliac vein: case report

    Energy Technology Data Exchange (ETDEWEB)

    Rhee, Sun Jung; Park, Seong Jin; Lee, Hae Kyung; Yi, Boem Ha; Park, Sung Il; Hong, Soo Jin; Kim, Hee Kyung; Park, Jeong Mi [Soonchunhyang University Hospital, Bucheon (Korea, Republic of)

    2008-10-15

    We report the radiologic findings of a rectal carcinoma case with tumor thrombus in the inferior vana cava and left common iliac vein of a 48-year-old woman. The patient complained of swelling in the left leg and consequently underwent a lymphoscintigraphy, CT venography, abdominal CT, PET-CT, pelvis MRI, and ultrasound doppler. The rectal cancer was determined via a colonoscopy. The tissue biopsy of tumor thrombus in the IVC was done during insertion of IVC filter and poorly differentiated adenocarcinoma was revealed by pathology.

  17. Klippel-Trenaunay syndrome with hemimegalencephaly, retroperitoneal lymphangioma and double inferior vena cava.

    Science.gov (United States)

    Vurucu, S; Battal, B; Kocaoglu, M; Akin, R

    2009-05-01

    Klippel-Trenaunay syndrome (KTS) is a rare disorder characterised by congenital vascular hamartomas, limb hypertrophy, lymphangiomas and atresia of lymph vessels with non-pitting oedema. A 6-year-old girl with KTS was referred to our hospital for evaluation of intractable seizures. In addition to findings consistent with KTS, we also found hemimegalencephaly, retroperitoneal lymphangioma and double inferior vena cava. All of these associations in the same patient with KTS are unique in the English literature. We report on the multidedector CT and MRI features of such an unusual case.

  18. Extra adrenal retroperitoneal paraganglioma associated with duplication of inferior vena cava

    Directory of Open Access Journals (Sweden)

    parangama chatterjee

    2008-09-01

    Full Text Available

    Retroperitoneal paragangliomas arise from specialized neural crest cells symmetrically distributed along the aorta in association with the sympathetic chain. If this tissue aggregates in the adrenal medulla pheochromocytoma may arise. When it remains in the paraaortic sites it could develop into extra-adrenal, retroperitoneal paraganglioma. We report a case of extra-adrenal paraganglioma in the renal hilum intimately related to the left side of a double inferior vena cava. To the best of our knowledge such an association has never been described before. The clinical significance of this venous anomaly is reviewed.

  19. Phlorotannins from Ecklonia cava (Phaeophyceae): biological activities and potential health benefits.

    Science.gov (United States)

    Wijesekara, Isuru; Yoon, Na Young; Kim, Se-Kwon

    2010-01-01

    The importance of bioactive derivatives as functional ingredients has been well recognized due to their valuable health beneficial effects. Therefore, isolation and characterization of novel functional ingredients with biological activities from seaweeds have gained much attention. Ecklonia cava Kjellman is an edible seaweed, which has been recognized as a rich source of bioactive derivatives mainly, phlorotannins. These phlorotannins exhibit various beneficial biological activities such as antioxidant, anticancer, antidiabetic, anti-human immunodeficiency virus, antihypertensive, matrix metalloproteinase enzyme inhibition, hyaluronidase enzyme inhibition, radioprotective, and antiallergic activities. This review focuses on biological activities of phlorotannins with potential health beneficial applications in functional foods, pharmaceuticals, and cosmeceuticals.

  20. Cement embolus trapped in the inferior vena cava filter during percutaneous vertebroplasty

    Energy Technology Data Exchange (ETDEWEB)

    Li, Zhi; Ni, Rui Fang; Zhao, Xin; Yang, Chao; Li, Ming Ming [First Affiliated Hospital of Soochow University, Suzhou (China)

    2013-06-15

    A 58-year-old female patient, diagnosed with adenocarcinoma of the lung, underwent percutaneous vertebroplasty at the L4 vertebral body due to painful spinal metastases. Because of deep venous thrombosis of the left femoral and iliac veins, an inferior vena cava filter had been placed before vertebroplasty. Bone cement migrated into the venous bloodstream and then was being trapped within the previously placed filter. This case illustrates that caval filter could capture the bone cement and prevent it from migrating to the pulmonary circulation.

  1. [Bilateral renal vein thrombosis and acute renal failure due to inferior vena cava filter thrombosis. Report of one case].

    Science.gov (United States)

    Vega, Jorge; Díaz, Rienzi

    2014-11-01

    Bilateral renal vein thrombosis is an unusual etiology of acute renal failure and usually is associated with nephrotic syndrome. We report a 77-year-old man, consulting in the emergency room for anuria that appeared 24 hours after a syncope. The patient was carrier of an inferior vena cava filter prophylactically installed 17 months earlier and was not receiving anticoagulation. Serum creatinine on admission was 5.45 mg/dl and blood urea nitrogen was 54 mg/dl. Computed tomography and Doppler ultrasonography showed an extensive thrombosis of inferior vena cava and both renal veins. Heparin therapy was started with a rapid recovery of renal function and diuresis.

  2. Relationship between encephalopathy and portal vein-vena cava shunt:Value of computed tomography during arterial portography

    Institute of Scientific and Technical Information of China (English)

    Qian Chu; Zhen Li; Su-Ming Zhang; Dao-Yu Hu; Ming Xiao

    2004-01-01

    AIM: To assess the value of computed tomography during arterial portography (CTAP) in portal vein-vena cava shunt,and analysis of the episode risk in encephalopathy.METHODS: Twenty-nine patients with portal-systemic encephalopathy due to portal hypertension were classified by West Haven method into grade Ⅰ(29 cases), gradeⅡ(16 cases), grade Ⅲ(10 cases), grade Ⅳ( 4 cases). All the patients were scanned by spiral-CT. Plane scans, artery phase and portal vein phase enhancement scans were performed, and the source images were thinly reconstructed to 1.25 mm. We reconstructed the celiac trunk, portal vein,inferior vena cava and their branches and subjected them to three-dimensional vessel analysis by volume rendering(VR) technique and multiplanar volume reconstruction(MPVR) technique. The blood vessel reconstruction technique was used to evaluate the scope and extent of portal vein-vena cava shunt, portal vein emboli and the fistula of hepatic artery- portal vein. The relationship between the episode risk of portal-systemic encephalopathy and the scope and extent of portal vein-vena cava shunt,portal vein emboli and fistula of hepatic artery- portal vein was studied.RESULTS: The three-dimensional vessel reconstruction technique of spiral-CT could display celiac trunk, portal vein,inferior vena cava and their branches at any planes and angles and the scope and extent of portal vein-vena cava shunt, portal vein emboli and the fistula of hepatic artery- portal vein. In twenty-nine patients with portal-systemic encephalopathy, grade Ⅰ accounted for 89.7% esophageal varices, 86.2% paragastric varices; grade Ⅱ accounted for68.75% cirsomphalos, 56.25% paraesophageal varices,62.5% retroperitoneal varices and 81.25% dilated azygos vein; grade Ⅲ accounted for 80% cirsomphalos, 60%paraesophageal varices, 70% retroperitoneal varices, 90%dilated azygos vein, and part of the patients in grades Ⅱand Ⅲ had portal vein emboli and fistula of hepatic arteryportal vein

  3. New approach of assessing hypovolemic shock class 1 during acute emergencies: Ultrasonographic inferior vena cava and abdominal aorta diameter ratio

    Science.gov (United States)

    Ahmad, Rashidi; Kunji, Mohamad Iqhbal; Hj Abd Kareem, Meera Mohaideen; Halim, Shamimi A.

    2013-09-01

    In a patient with hypovolemic shock class 1, the vital signs and biochemical properties are almost normal. The alteration of hemodynamic parameters and biochemical values occurs mainly in advanced hypovolemia state (neuroendocrine response). The availability of ultrasound machine at healthcare centers makes the measurement of vascular calibre feasible and possible. Inspiration and expiration inferior vena cava diameter changes predict hypovolemic shock class 1 but in acute emergencies this method is impractical. The purpose of this study is to develop a new approach in identifying hypovolemic shock at early phase by measuring the inferior vena cava and aorta diameter ratio using bedside ultrasound machine.

  4. Combined Anomaly of the Right Hepatic Lobe Agenesis and Absence of the Inferior Vena Cava: a Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Suh, Hee Jung; Kim, Wan Tae; Kim, Mi Young; Cho, Yun Ku [Seoul Veterans Hospital, Seoul (Korea, Republic of)

    2008-07-15

    The absence of the inferior vena cava is an uncommon congenital anomaly that has recently been identified as an important risk factor contributing to the development of deep venous thrombosis. Congenital agenesis of the right hepatic lobe is a rare anomaly which is found incidentally in radiologic examinations. We present a case of a congenital absence of the infrarenal inferior vena cava, combined with agenesis of the right hepatic lobe in a 62-year-old man presented with symptoms of deep venous thrombosis

  5. Knowledge about aids and drugs among undergraduate students in a higher education institution in the state of Paraná El conocimiento sobre sida y drogas entre alumnos de graduación de una institución de enseñanza superior en el estado de Paraná Conhecimento sobre aids e drogas entre alunos de graduação de uma instituição de ensino superior do estado do Paraná

    Directory of Open Access Journals (Sweden)

    Sônia Maria Soares dos Santos

    2009-08-01

    Full Text Available The main objective of this study was to measure the knowledge of undergraduate nursing students about Acquired Immunodeficiency Syndrome (AIDS and drugs. The study was carried out in 2007 with a random sample of 289 undergraduate students at a State University in the Northwest of Paraná, Brazil. The students self-applied a questionnaire validated by experts. Questions were divided into three levels of complexity: low, average and high. The level of correct answers was higher in the questions of low complexity, diminishing as the questions' complexity increased. Thirteen percent of questions concerning risk factors and vulnerability to HIV infection among injection drug users (IDU and biological material for diagnosis of AIDS was correctly answered by 90% of students. Students possessed knowledge concerning AIDS and drugs, however such knowledge was considered insufficient, showing lack of information and gaps in education with a dissociation of interdisciplinary and inter-curricular content.Este trabajo tuvo como principal objetivo investigar el conocimiento de universitarios sobre el síndrome de inmunodeficiencia adquirida (SIDA y drogas. La investigación se realizó en el año 2007 a partir de una muestra aleatoria de 289 alumnos de los cursos de graduación de una facultad estatal de la región noroeste de Paraná, en Brasil. Los alumnos respondieron un cuestionario auto aplicable, validado por especialistas del área. Las preguntas fueron divididas en tres niveles de complejidad: baja, media y alta. El índice de aciertos de los alumnos fue mayor en las preguntas de baja complejidad, disminuyendo con el aumento del grado de complejidad. El índice de 90% de aciertos ocurrió en 13% de las preguntas, que se referían a los factores de riesgo y vulnerabilidad para la infección por el virus de la inmunodeficiencia humana (HIV en usuarios de drogas inyectables (UDI y el material biológico para el diagnóstico de SIDA. Los alumnos pose

  6. El campo de las ciencias y la educación superior entre el monopolio del inglés y el plurilingüismo: elementos para una política del lenguaje en América Latina

    National Research Council Canada - National Science Library

    Hamel, Rainer Enrique

    2013-01-01

    El campo de las ciencias y la educación superior constituye un espacio estratégico donde se reflejan con gran nitidez los problemas de la globalización del inglés como única lengua híper-central...

  7. 75 FR 28542 - Superior Resource Advisory Committee

    Science.gov (United States)

    2010-05-21

    ... orient the new Superior Resource Advisory Committee members on their roles and responsibilities. DATES... of the roles and responsibilities of the Superior Resource Advisory Committee members; Election of... Forest Service Superior Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice...

  8. [The superior laryngeal nerve and the superior laryngeal artery].

    Science.gov (United States)

    Lang, J; Nachbaur, S; Fischer, K; Vogel, E

    1987-01-01

    Length, diameter and anastomoses of the nervus vagus and its ganglion inferius were measured 44 halved heads. On the average, 8.65 fiber bundles of the vagus nerve leave the retro-olivary area. In the area of the jugular foramen is the near superior ganglion of the 10th cranial nerve. In this area were found 1.48 (mean value) anastomoses with the 9th cranial nerve. 11.34 mm below the margo terminalis sigmoidea branches off the ramus internus of the accessory nerve which has a length of 9.75 mm. Further anastomoses with the 10th cranial nerve were found. The inferior ganglion of the 10th nerve had a length of 25.47 mm and a diameter of 3.46 mm. Five mm below the ganglion the 10th nerve had a width of 2.9 and a thickness of 1.5 mm. The mean length of the superior sympathetic ganglion was 26.6 mm, its width 7.2 and its thickness 3.4 mm. In nearly all specimens anastomoses of the superior sympathetic ganglion with the ansa cervicalis profunda and the inferior ganglion of the 10th cranial nerve were found. The superior laryngeal nerve branches off about 36 mm below the margo terminalis sigmoidea. The width of this nerve was 1.9 mm, its thickness 0.8 mm on the right and 1.0 mm on the left side. The division in the internal and external rami was found about 21 mm below its origin. Between the n. vagus and thyreohyoid membrane the ramus internus had a length of 64 mm, the length of external ramus between the vagal nerve and the inferior pharyngeal constrictor muscle was 89 mm. Its mean length below the thyreopharyngeal part was 10.7 mm, 8.6 branchlets to the cricothyroid muscle were counted. The superior laryngeal artery had its origin in 80% of cases in the superior thyroideal artery, in 6.8% this vessel was a branch of the external carotid artery. Its average outer diameter was 1.23 mm on the right side and 1.39 mm on the left. The length of this vessel between its origin and the thyreohyoid membrane was 34 mm. In 7% on the right side and in 13% on the left, the superior

  9. Trinità di Cava in 1111. Conflict resolution and definition of a border

    Directory of Open Access Journals (Sweden)

    Vito Lorè

    2006-06-01

    Full Text Available At the beginning of the 12th century, in the course of a few years, the dukes of Puglia and the lords of Nocera put an end to a period of contrasts and redrew the map of powers in the area North of Salerno. The Trinità di Cava became the core of this new balance. Confirming its already evident inclination to act as a mediator in the conflicts between secular powers, the Trinità directed the agreements between the parts to its advantage through the payment of large amounts of money. Thus, it came into possession of an important castle and of the whole of the land of the involved parties inside a large area, delimited on in this occasion by neat boundaries. However, such area, lacking military defences in its Northern part, at the time was neither a territory subjected to a lordship nor a free space; it was, rather, a compensation area, avoiding contacts between the two rival powers. Only several decades later, when the Cava area was no more a borderland between different rules, the Trinità got hold of it and built up new fortifications, thus giving its presence in the area a lordship character.

  10. Initial experience in 115 patients with the retrievable Cook Celect vena cava filter.

    Science.gov (United States)

    Doody, O; Given, M F; Kavnoudias, H; Street, M; Thomson, K R; Lyon, S M

    2009-02-01

    The aim of this study was to evaluate our experience with the retrievable Cook Celect inferior vena cava (IVC) filter (William Cook, Europe) with regard to insertion, efficiency, ease of retrieval, and any associated complications. A retrospective review was performed of 115 patients (41 female, 74 male, mean age 47.97 years) who underwent Cook Celect IVC filter insertion between December 2005 and October 2007. Filter insertion was successful in all patients. Of the 115 filters inserted, 57 have been successfully retrieved (49.6%) to date. The successful retrieval rate from attempted retrieval was 93.4%. The mean dwell time of successfully retrieved filters was 114.9 days (range 14-267 days). Failed retrievals were due to a thrombosed vena cava (n = 1) and endothelialisation of the filter (n = 3). In the failed retrieval group the mean implantation time was 142 days (range 78-211 days). While this is the first retrospective clinical study on the Cook Celect filter, results to date are promising. We demonstrated an efficacious filter with a high successful retrieval rate of 93.4% and a low complication rate. The filter was assessed with extended dwell times (range 14-267 days). Failed retrieval secondary to hook endothelialisation continues to be an issue with this filter. We recognize that a limitation of our study was the lack of systematic follow-up for clinically silent complications. Further studies to evaluate longer term outcomes and effectiveness of this filter are warranted.

  11. Trombosis de la vena cava inferior y tromboembolia pulmonar de origen tumoral

    Directory of Open Access Journals (Sweden)

    Alejandro Vázquez

    2008-04-01

    Full Text Available Puérpera de 25 años diagnosticada de tumoración renal izquierda de 17 cm de diámetro, ocupando el hipocondrio izquierdo y desplazando la línea media (Fig. 1, así como trombosis de la vena cava inferior desde las venas ilíacas hasta su porción retrohepática, y tromboembolia a nivel de la arteria pulmonar principal derecha (Figs. 2 A y B. No se evidenciaron metástasis a distancia. Fue intervenida quirúrgicamente realizando nefrectomía radical izquierda y linfadenectomía regional; trombectomía de la vena cava inferior, exéresis de la vena ovárica izquierda y trombectomía de la arteria pulmonar derecha mediante el uso de circulación extracorpórea y parada circulatoria a 24°C, sin complicaciones.

  12. Measurement of streaming potentials of mammalian blood vessels, aorta and vena cava, in vivo.

    Science.gov (United States)

    Sawyer, P N; Himmelfarb, E; Lustrin, I; Ziskind, H

    1966-09-01

    Attempts to measure streaming potentials in large rabbit blood vessels in vivo have been carried out. Streaming potentials, V(89), were measured by the introduction of microelectrodes through the wall of the blood vessel at separations greater than 1 cm. The outputs from these electrodes fed through calomel cells were amplified and recorded directly by using an Electronics for Medicine photorecorder (White Plains, N. Y.). "Effective streaming currents" were determined by running the output through a low impedence galvanometer while simultaneously measuring the resistance of the circuit V(8) were, therefore, calculated from two measurements and compared. Flow through vessels studied was measured using two different electromagnetic flowmeters. The results indicate that V(8) present in both aorta and vena cava are of the order of 5 to 10 mv. By using the Helmholtz-Smoluchowski equation into which flow was reintegrated, the numbers yield zeta potentials approximating 0.1 to 0.4 v in both aorta and vena cava. This number approaches the apparent upper limit for zeta (actually "interfacial potentials") potentials in biological systems. The measured "i.f." potential is considered as the interreaction of several physical and metabolic factors operating at the blood intimal interface. The polarity of the potential suggests that the interface is negative with respect to the blood flowing through the vessel. Interfacial potential and related V(8) are discussed in terms of their possible importance as a mechanism for maintaining vascular homeostasis in the living animal.

  13. Mayer-rokitansky-kuster-hauser syndrome associated with severe inferior vena cava stenosis.

    Science.gov (United States)

    Londra, Laura; Tobler, Kyle; Wu, John; Kolp, Lisa

    2014-01-01

    Precis. The postoperative course of a neovagina creation procedure in a young woman with Meyer-Rokitansky-Kuster-Hauser syndrome was complicated, despite prophylaxis, by extensive pelvic deep venous thrombosis secondary to unsuspected severe inferior vena cava stenosis. Background. Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is characterized by congenital vaginal agenesis and an absent or rudimentary uterus in genotypical females. Malformations of the inferior vena cava (IVC) are not commonly associated with MRKH syndrome. We report a case of a patient with MRKH syndrome with severe IVC stenosis that was diagnosed when the patient presented with extensive pelvic deep venous thrombosis (DVT) during the postoperative course of a neovagina creation. Case. A 19-year-old female underwent a McIndoe procedure. Despite DVT prophylaxis, extensive pelvic DVT of the femoral vein was diagnosed on postoperative day 7. Therapeutic anticoagulation was initiated, and pharmacological and mechanical thrombolysis were performed. During these procedures, a hypoplastic IVC was noted. Conclusion. MRKH syndrome can be associated with IVC malformations, which constitute an anatomical risk factor for postoperative DVT.

  14. Mayer-Rokitansky-Kuster-Hauser Syndrome Associated with Severe Inferior Vena Cava Stenosis

    Directory of Open Access Journals (Sweden)

    Laura Londra

    2014-01-01

    Full Text Available Precis. The postoperative course of a neovagina creation procedure in a young woman with Meyer-Rokitansky-Kuster-Hauser syndrome was complicated, despite prophylaxis, by extensive pelvic deep venous thrombosis secondary to unsuspected severe inferior vena cava stenosis. Background. Mayer-Rokitansky-Kuster-Hauser (MRKH syndrome is characterized by congenital vaginal agenesis and an absent or rudimentary uterus in genotypical females. Malformations of the inferior vena cava (IVC are not commonly associated with MRKH syndrome. We report a case of a patient with MRKH syndrome with severe IVC stenosis that was diagnosed when the patient presented with extensive pelvic deep venous thrombosis (DVT during the postoperative course of a neovagina creation. Case. A 19-year-old female underwent a McIndoe procedure. Despite DVT prophylaxis, extensive pelvic DVT of the femoral vein was diagnosed on postoperative day 7. Therapeutic anticoagulation was initiated, and pharmacological and mechanical thrombolysis were performed. During these procedures, a hypoplastic IVC was noted. Conclusion. MRKH syndrome can be associated with IVC malformations, which constitute an anatomical risk factor for postoperative DVT.

  15. Retrohepatic vena cava deroofing in living donor liver transplantation for caudate hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    See Ching Chan; William W Sharr; Tan To Cheung; Albert CY Chan; Simon HY Tsang; Kenneth SH Chok

    2013-01-01

     The  removal  of  tumor  together  with  the  native liver in living donor liver transplantation for hepatocellular carcinoma is challenged by a very close resection margin if the  tumor  abuts  the  inferior  vena  cava.  This  is  in  contrast to  typical  deceased  donor  liver  transplantation  where the  entire  retrohepatic  inferior  vena  cava  is  included  in total  hepatectomy.  Here  we  report  a  case  of  deroofing  the retrohepatic vena cava in living donor liver transplantation for  caudate  hepatocellular  carcinoma.  In  order  to  ensure clear resection margins, the anterior portion of the inferior vena cava was included. The right liver graft was inset into a Dacron vascular graft on the back table and the composite graft was then implanted to the recipient inferior vena cava. Using  this  technique,  we  observed  the  no-touch  technique in tumor removal, hence minimizing the chance of positive resection margin as well as the chance of shedding of tumor cells during manipulation in operation.

  16. Concomitant pulmonary arteriovenous and inferior vena cava malformations. A case report

    Energy Technology Data Exchange (ETDEWEB)

    Hawass, N.D.; Kolawole, T.M.; Badawi, M.G.

    1988-05-01

    A case of pulmonary arterio-venous malformation (AVM) presenting with dyspnoea diagnosed by computer tomography (CT) and pulmonary angiography is reported. Venous anomalies in the form of agenesis of the iliac veins and the inferior vena cava (IVC), were discovered through femoral venograms performed after technical difficulties were encountered at pulmonary angiography performed via the femoral route. These venous anomalies co-existed with normal but dilated azygos and hemiazygos systems, and with the azygos appearing as a right hilar mass lesion which showed the 'candy cane sign' on the lateral view on venography. A dilated varix at the confluence of the right renal vein and the IVC collaterals was also noted. This association of a pulmonary AVM and IVC agenesis has not been previously reported in the literature. The embryogenesis of the inferior vena cava and the azygos system is presented in an attempt to explain the rare association of these anomalies. The various techniques of diagnosing the disease entities, expecially by CT, are discussed. The rare co-existence of pulmonary AVM and the absence of the IVC is emphasized.

  17. Inhibitory Effects of Ecklonia cava Extract on High Glucose-Induced Hepatic Stellate Cell Activation

    Directory of Open Access Journals (Sweden)

    Akiko Kojima-Yuasa

    2011-12-01

    Full Text Available Nonalcoholic steatohepatitis (NASH is a disease closely associated with obesity and diabetes. A prevalence of type 2 diabetes and a high body mass index in cryptogenic cirrhosis may imply that obesity leads to cirrhosis. Here, we examined the effects of an extract of Ecklonia cava, a brown algae, on the activation of high glucose-induced hepatic stellate cells (HSCs, key players in hepatic fibrosis. Isolated HSCs were incubated with or without a high glucose concentration. Ecklonia cava extract (ECE was added to the culture simultaneously with the high glucose. Treatment with high glucose stimulated expression of type I collagen and α-smooth muscle actin, which are markers of activation in HSCs, in a dose-dependent manner. The activation of high glucose-treated HSCs was suppressed by the ECE. An increase in the formation of intracellular reactive oxygen species (ROS and a decrease in intracellular glutathione levels were observed soon after treatment with high glucose, and these changes were suppressed by the simultaneous addition of ECE. High glucose levels stimulated the secretion of bioactive transforming growth factor-β (TGF-β from the cells, and the stimulation was also suppressed by treating the HSCs with ECE. These results suggest that the suppression of high glucose-induced HSC activation by ECE is mediated through the inhibition of ROS and/or GSH and the downregulation of TGF-β secretion. ECE is useful for preventing the development of diabetic liver fibrosis.

  18. A new type of inferior vena cava filter and its animal experiment

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    This article explains the definition of pulmonary embolism as well as its causes and elaborates on a new type of inferior vena cava filter(VCF)we have developed. Shaped like a waistdrum,the VCF is mainly made of TiNi shape memory alloy-wire. It has a subulate wire frame which can intercept the thrombus on each side. Its medial body is made up of straight shape memory alloywire . Every pillar is bound by several shape memory alloy springs. This type of inferior vena cava filter has a good resistance to fatigue and is hard to be broken. Through animal experiments its framework has been proved to be lasting. Neither deformation nor fragmentation happened when the VCF had been kept in the body for a long time. The thrombus interception efficiency of our VCF is higher than imported VCFs. The filter is unfavorable for thrombosis. After implantation,the IVC was completely unimpeded and no displacement occurred. Moreover the VCF did little damage to the Wall of vein. Neither IVC perforation nor haematoma occurred after the operation.

  19. El impacto del diseño de actividades en el plagio de Internet en educación superior

    National Research Council Canada - National Science Library

    2016-01-01

    El objetivo de este trabajo es comprender mejor la naturaleza del plagio en la Educación Superior. Analizamos una serie de actividades en un curso on-line de nivel universitario, con el objetivo de encontrar...

  20. Fluxo no ducto venoso e na veia cava inferior dos fetos em gestações isoimunizadas Assess flow velocity in the ductus venosus and inferior vena cava in fetuses in isoimmunized pregnancies

    Directory of Open Access Journals (Sweden)

    Eura Martins Lage

    2006-10-01

    Full Text Available OBJETIVO: Avaliar a velocidade de fluxo na veia cava inferior e no ducto venoso em fetos, nas gestações isoimunizadas. MÉTODOS: De junho de 1999 a junho de 2004, foram avaliados 61 fetos, entre 27 e 35 semanas, de gestantes portadoras de isoimunização por antígenos eritrocitários. Em todos os fetos foram avaliadas as velocidades de fluxo na veia cava inferior e no ducto venoso. Obteve-se amostra de sangue fetal para determinação dos valores da hemoglobina e calculou-se o déficit da concentração de hemoglobina. Esses fetos foram divididos em quatro grupos, de acordo com o déficit da concentração de hemoglobina: fetos não anêmicos, anêmicos leves, anêmicos moderados e anêmicos graves. Utilizou-se o teste Qui-quadrado para comparar os quatro grupos de fetos quanto à proporção da alteração da velocidade média de fluxo na veia cava inferior e no ducto venoso. RESULTADOS: A velocidade de fluxo na veia cava inferior estava alterada em 3,8% dos fetos não anêmicos, em 3,1% dos fetos com anemia leve, em 40% dos anêmicos moderados e em 76% dos fetos com anemia grave. Já a velocidade de fluxo no ducto venoso estava alterada em 7,7% dos fetos não anêmicos, em 3,1% dos fetos com anemia leve, em 32,5% dos anêmicos moderados e em 68% dos fetos com anemia grave. O valor p foi inferior a 0,001. CONCLUSÃO: Verificou-se aumento da freqüência de alteração da velocidade de fluxo na veia cava inferior e no ducto venoso à medida que a anemia se agravava.OBJECTIVE: Ductus venosus and inferior vena cava flow velocity was assessed in fetuses in isoimmunized pregnancies. METHODS: Examination of 61 fetuses aged 27 to 35 weeks from Rh-erythrocyte antigen isoimmunized women was carried out from June 1999 to June 2004. All fetuses were submitted to the examination of ductus venosus and inferior vena cava flow velocity. Blood samples were collected to determine hemoglobin values and hemoglobin concentration deficits. Accordingly, fetuses

  1. What are Millian Qualitative Superiorities?

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    Jonathan Riley

    2008-04-01

    Full Text Available In an article published in Prolegomena 2006, Christoph Schmidt-Petri has defended his interpretation and attacked mine of Mill’s idea that higher kinds of pleasure are superior in quality to lower kinds, regardless of quantity. Millian qualitative superiorities as I understand them are infinite superiorities. In this paper, I clarify my interpretation and show how Schmidt-Petri has misrepresented it and ignored the obvious textual support for it. As a result, he fails to understand how genuine Millian qualitative superiorities determine the novel structure of Mill’s pluralistic utilitarianism, in which a social code of justice that distributes equal rights and duties takes absolute priority over competing considerations. Schmidt-Petri’s own interpretation is a non-starter, because it does noteven recognize that Mill is talking about different kinds of pleasant feelings, such that the higher kinds are intrinsically more valuable than the lower. I conclude by outlining why my interpretation is free of any metaphysical commitment to the “essence” of pleasure.

  2. Isolated superior mesenteric artery dissection

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    Lalitha Palle

    2010-01-01

    Full Text Available Isolated superior mesenteric artery (SMA dissection without involvement of the aorta and the SMA origin is unusual. We present a case of an elderly gentleman who had chronic abdominal pain, worse after meals. CT angiography, performed on a 64-slice CT scanner, revealed SMA dissection with a thrombus. A large artery of Drummond was also seen. The patient was managed conservatively.

  3. Preparative isolation and purification of phlorotannins from Ecklonia cava using centrifugal partition chromatography by one-step.

    Science.gov (United States)

    Lee, Ji-Hyeok; Ko, Ju-Young; Oh, Jae-Young; Kim, Chul-Young; Lee, Hee-Ju; Kim, Jaeil; Jeon, You-Jin

    2014-09-01

    Various bioactive phlorotannins of Ecklonia cava (e.g., dieckol, eckol, 6,6-bieckol, phloroglucinol, phloroeckol, and phlorofucofuroeckol-A) are reported. However, their isolation and purification are not easy. Centrifugal partition chromatography (CPC) can be used to efficiently purify the various bioactive-compounds efficiently from E. cava. Phlorotannins are successfully isolated from the ethyl acetate (EtOAc) fraction of E. cava by CPC with a two-phase solvent system comprising n-hexane:EtOAc:methanol:water (2:7:3:7, v/v) solution. The dieckol (fraction I, 40.2mg), phlorofucofuroeckol-A (fraction III, 31.1mg), and fraction II (34.1mg) with 2,7-phloroglucinol-6,6-bieckol and pyrogallol-phloroglucinol-6,6-bieckol are isolated from the crude extract (500 mg) by a one-step CPC system. The purities of the isolated dieckol and phlorofucofuroeckol-A are ⩾90% according to high performance liquid chromatography (HPLC) and electrospray ionization multi stage tandem mass spectrometry analyses. The purified 2,7-phloroglucinol-6,6-bieckol and pyrogallol-phloroglucinol-6,6-bieckol are collected from fraction II by recycle-HPLC. Thus, the CPC system is useful for easy and simple isolation of phlorotannins from E. cava. Copyright © 2014 Elsevier Ltd. All rights reserved.

  4. Right renal vein elongation with the inferior vena cava for cadaveric kidney transplants: an old neglected surgical approach

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    Jose C. Baptista-Silva

    2005-12-01

    Full Text Available INTRODUCTION: Short right renal vein is a frequent and well-known technical inconvenience that is commonly observed during transplantation of the right kidney. We present our experience with the elongation of short cadaveric right renal veins using the contiguous vena cava during cadaveric renal transplants. METHODS: We performed 34 kidney transplantations with a short right renal vein requiring elongation using the inferior vena cava, to make the venous anastomosis technically feasible. The elongated right renal vein was anastomosed end to side to the external iliac vein in 24 patients, to the common iliac vein in 8 patients and to the inferior vena cava in 2 patients. The right renal artery with an aortic patch was implanted end to side in 33 patients, and end to end without aortic patch to the internal iliac artery in one patient. RESULTS: In all cases, the vascular anastomoses were easily performed in the recipient and no thrombosis was observed. CONCLUSION: Elongation of a short right renal vein with the inferior vena cava is a feasible mean to overcome technical problems that may compromise the results of cadaveric renal transplantation.

  5. Catheter-directed thrombolysis for double inferior vena cava with deep venous thrombosis: A case report and literature review.

    Science.gov (United States)

    Wang, Xiaodong; Chen, Zhengxin; Cai, Qianrong

    2014-08-01

    Double inferior vena cava (DIVC) with deep venous thrombosis (DVT) is rare, and there is only one reported case of DIVC with DVT treated by catheter-directed thrombolysis. We report a case of a 32-year-old man with an extensive venous clot involving the infrarenal segment of a double IVC who received filter implantation and catheter-directed thrombolysis.

  6. A escrita no Ensino Superior

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    Maria Conceição Pillon Christofoli

    2013-01-01

    Full Text Available http://dx.doi.org/10.5902/198464445865 O presente artigo trata de apresentar resultados oriundos de pesquisa realizada no Ensino Superior, enfocando a escrita em contextos universitários. Depoimentos por parte dos acadêmicos evidenciam certa resistência ao ato de escrever, o que acaba muitas vezes distanciando o sujeito da produção de um texto. Assim sendo, mesmo que parciais, os resultados até então analisados dão conta de que: pressuposto 1 – há ruptura da ideia de coerência entre o que pensamos, o que conseguimos escrever, o que entende nosso interlocutor; pressuposto 2 – a autocorreção de textos como exercício de pesquisa é imprescindível para a qualificação da escrita; pressuposto 3 – os diários de aula representam rico instrumento para a qualificação da escrita no Ensino Superior; pressuposto 4 – há necessidade de que o aluno do Ensino Superior escreva variados tipos de escrita, ainda que a universidade cumpra com seu papel, enfatizando a escrita acadêmica; pressuposto 5 – o trabalho com a escrita no Ensino Superior deve enfatizar os componentes básicos da expressão escrita: o código escrito e a composição da escrita. Palavras-chave: Escrita; Ensino Superior; formação de professores.

  7. Recursos de información en la educación superior en Colombia

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    Feres E. Sahid C.

    1991-05-01

    Full Text Available RESUMEN El presente artículo se inspira en una investigación realizada por el autor, durante 1990 y 1991, relacionada con la administración y gestión de los recursos computacionales y recursos de información en las instituciones de educación superior en Colombia. El articulo pretende ofrecer a los lectores una diferenciación entre recursos computacionales y recursos de información, destacar la importancia de estos últimos  entre el desarrollo  de las instituciones de educación superior y dar una idea del proceso constante y rápido de cambio a que se encuentran sometidas las instituciones de educación superior, en lo que hace a tecnología de la información.

  8. USO DE UN MEDIO TECNOLÓGICO EDUCATIVO EN EDUCACIÓN SUPERIOR COMO RECURSO DIDÁCTICO: REPORTE DE UNA EXPERIENCIA EN ODONTOLOGÍA ( THE USE OF EDUCATIONAL TECHNOLOGY MEDIA IN HIGHER EDUCATION AS A TEACHING RESOURCE: DENTISTRY EXPERIENCE REPORT

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    Quirós Garita Marcela

    2010-08-01

    Full Text Available Resumen:La elaboración de una herramienta tecnológica necesita una detallada investigación previa donde se determinan los problemas educativos que justifican su utilización; además, se analizan otros aspectos como los concernientes a las características de la población meta a la cual va dirigida; al respecto, las Tecnologías de la Información y de la Comunicación (TICs han venido propiciando cambios en torno a la educación y a los sistemas de aprendizaje; sus alcances están siendo apreciados cada día más en los distintos centros de enseñanza a todo nivel. Por lo tanto, en este artículo se expone la experiencia de la elaboración y la validación de una herramienta tecnológica para el curso Restaurativa II en la Facultad de Odontología de la Universidad de Costa Rica (UCR; la utilización de la herramienta se propone como una ayuda para el aprendizaje del diseño de Prótesis Parcial removible que necesita de una buena preparación como base para obtener éxito en el tratamiento dental. Dicha experiencia fue bien acogida tanto por los estudiantes entrevistados como por los docentes.Abstract:The development of a technological tool requires a detailed preliminary investigation to identify the educational problems that justify their use. Also it is necessary to explore other issues related to the characteristics of the target population to whom it is addressed, respect, Information and Communication Technologies have been encouraging changes around education and learning systems. His achievements are being increasingly appreciated in the different schools at all levels. Therefore this article describes the experience of the development and use of a multimedia tool for the “Restorative II” course at the Faculty of Dentistry of the University of Costa Rica, (UCR; the use of the tool is proposed as an aid for learning design removable partial denture that needs a good preparation as the basics for success in a dental treatment

  9. Pensamiento Superior y Desarrollo Territorial

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    Víctor Manuel Racancoj Alonzo

    2015-04-01

    Full Text Available Esta reflexión pretende explicar el papel, fundamental, que juega el pensamiento superior, en la formulación y la práctica de modelos de desarrollo territorial local; para que contribuyan de forma sustantiva, en la transformación de las condiciones socioeconómicas adversas que hoy viven comunidades indígenas y rurales de muchos países, como Guatemala, situación que puede resumirse en altos índices de pobreza y desnutrición. Pero, el pensamiento superior, debe ser competencia de la población con pertenencia a lo local, pues si y solo si esta condición existe, se dará validez y viabilidad al desarrollo territorial. Para alcanzar competencias de pensamiento superior, en los espacios locales, se tiene que superar obstáculos en el modelo de universidad, que hoy estamos familiarizados a ver y pensar; modelos que tienen las características de: herencia colonial, disfunción con la problemática económica, cultural, social y política de la sociedad y la negación de los saberes ancestrales.

  10. Superior sulcus tumors (Pancoast tumors).

    Science.gov (United States)

    Marulli, Giuseppe; Battistella, Lucia; Mammana, Marco; Calabrese, Francesca; Rea, Federico

    2016-06-01

    Superior Sulcus Tumors, frequently termed as Pancoast tumors, are a wide range of tumors invading the apical chest wall. Due to its localization in the apex of the lung, with the potential invasion of the lower part of the brachial plexus, first ribs, vertebrae, subclavian vessels or stellate ganglion, the superior sulcus tumors cause characteristic symptoms, like arm or shoulder pain or Horner's syndrome. The management of superior sulcus tumors has dramatically evolved over the past 50 years. Originally deemed universally fatal, in 1956, Shaw and Paulson introduced a new treatment paradigm with combined radiotherapy and surgery ensuring 5-year survival of approximately 30%. During the 1990s, following the need to improve systemic as well as local control, a trimodality approach including induction concurrent chemoradiotherapy followed by surgical resection was introduced, reaching 5-year survival rates up to 44% and becoming the standard of care. Many efforts have been persecuted, also, to obtain higher complete resection rates using appropriate surgical approaches and involving multidisciplinary team including spine surgeon or vascular surgeon. Other potential treatment options are under consideration like prophylactic cranial irradiation or the addition of other chemotherapy agents or biologic agents to the trimodality approach.

  11. Diversion of the inferior vena cava following repair of atrial septal defect causing hypoxemia.

    Science.gov (United States)

    Thompson, Ellen; Moritz, Dennis; Perdue, Romaine; Cansino, Silvestre

    2004-05-01

    Atrial septal defects (ASDs) are a common congenital abnormality, and operative repair is a routine, safe procedure. Diversion of the inferior vena cava (IVC) into the left atrium is an unusual complication following ASD closure. We report a case that illustrates the problem created by this right-to-left shunt. A middle-aged woman underwent ASD repair. She developed hypoxemia postoperatively. A transthoracic echocardiogram confirmed a right-to-left shunt, found only with agitated saline injected into the femoral vein, not into the basilic vein. Surgical reexploration revealed a residual ASD diverting IVC flow into the left atrium, which was repaired with a pericardial patch. Echocardiography with agitated saline injected from the femoral vein is an easy method to diagnose this uncommon complication.

  12. Migration of the Günther Tulip inferior vena cava filter to the chest.

    Science.gov (United States)

    Galhotra, Sanjay; Amesur, Nikhil B; Zajko, Albert B; Simmons, Richard L

    2007-12-01

    The authors describe two cases in which Günther Tulip inferior vena cava filters migrated to the chest, necessitating open-heart surgery for retrieval. In the first case, a 52-year-old man was transferred to their hospital from an outside facility after the filter migrated to the main pulmonary artery during attempted filter placement. In the second case, a 72-year-old man, a Günther Tulip filter was found to have migrated to the tricuspid valve after cardiopulmonary arrest and subsequent resuscitation, including emergent central venous line placement. The authors present the relevant details of both cases, discuss possible preventive strategies, and review the available literature about migration of the Günther Tulip filter.

  13. Liver transplantation with preservation of the inferior vena cava in case of symptomatic adult polycystic disease.

    Science.gov (United States)

    Lerut, Jan; Ciccarelli, Olga; Rutgers, Matthieu; Orlando, Giuseppe; Mathijs, Jules; Danse, Etienne; Goffin, Eric; Gigot, Jean-François; Goffette, Pierre

    2005-05-01

    Adult polycystic liver disease (APLD) is a rare disorder of the liver parenchyma, the treatment of which is still controversial. Conservative surgery may have a significant morbidity and is often ineffective in the long run. Liver replacement may be indicated in case of incapacitating hepatomegaly. Patients (one male, five females) undergoing liver transplantation for symptomatic APLD is presented in this study. The particular nature of this series is the fact that successful transplantation was performed in all cases with preservation of the recipient's inferior vena cava and without use of veno-venous bypass despite massive hepatomegaly and previous extensive liver surgery (in three cases). There was minimal morbidity and no mortality. All patients have excellent quality of life with a median follow-up of 41 months (range: 12-58) as testified by a median Karnofsky score of 90% (range: 80-100%).

  14. A Dedicated Inferior Vena Cava Filter Service Line: How to Optimize Your Practice.

    Science.gov (United States)

    Karp, Jennifer K; Desai, Kush R; Salem, Riad; Ryu, Robert K; Lewandowski, Robert J

    2016-06-01

    Despite the increased placement of retrievable inferior vena cava filters (rIVCFs), efforts to remove these devices are not commensurate. The majority of rIVCFs are left in place beyond their indicated usage, and often are retained permanently. With a growing understanding of the clinical issues associated with these devices, the United States Food and Drug Administration (FDA) has prompted clinicians to remove rIVCF when they are no longer indicated. However, major obstacles exist to filter retrieval, chief among them being poor clinical follow-up. The establishment of a dedicated IVC filter service line, or clinic, has been shown to improve filter retrieval rates. Usage of particular devices, specifically permanent versus retrievable filters, is enhanced by prospective physician consultation. In this article, the rationale behind a dedicated IVC filter service line is presented as well as described the structure and activities of the authors' IVC filter clinic; supporting data will also be provided when appropriate.

  15. Incidental Finding of Inferior Vena Cava Atresia Presenting with Deep Venous Thrombosis following Physical Exertion

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    Shalini Koppisetty

    2015-01-01

    Full Text Available Inferior vena cava atresia (IVCA is a rare but well described vascular anomaly. It is a rare risk factor for deep venous thrombosis (DVT, found in approximately 5% of cases of unprovoked lower extremity (LE DVT in patients <30 years of age. Affected population is in the early thirties, predominantly male, often with a history of major physical exertion and presents with extensive or bilateral DVTs. Patients with IVC anomalies usually develop compensatory circulation through the collateral veins with enlarged azygous/hemizygous veins. Despite the compensatory circulation, the venous drainage of the lower limbs is often insufficient leading to venous stasis and thrombosis. We describe a case of extensive and bilateral deep venous thrombosis following physical exertion in a thirty-six-year-old male patient with incidental finding of IVCA on imaging.

  16. Geometric similarity of aorta, venae cavae, and certain of their branches in mammals.

    Science.gov (United States)

    Holt, J P; Rhode, E A; Holt, W W; Kines, H

    1981-07-01

    The diameters of the aorta and venae cavae at various points throughout their lengths, the diameters of their major branches, and the lengths of various aortic and vena caval segments were measured in plastic corrosion casts of the arterial and venous systems of the normal adult mouse, rat, rabbit, dog, goat, horse, and cow, extending over a body weight range of 38,000-fold (arterial) and 1,100-fold (venous). It is shown that the diameters and lengths of these vessels are described by power-law equations relating the particular diameter or length to body weight (BW) raised to a particular diameter or length to body weight (BW) raised to a particular power, i.e., diameter = a BWb. Equations for the diameters and lengths of the vessels are given for slightly distended vessels and for vessels distended in the physiological range.

  17. Extensive Thrombosis of the Inferior Vena Cava and Left Renal Vein in a Neonate.

    Science.gov (United States)

    Kdous, Moez; Khlifi, Oussema; Brahem, Marwene; Khrouf, Mohamed; Amari, Sarah; Ferchiou, Monia; Zhioua, Fethi

    2015-01-01

    Antenatal renal vein thrombosis is a rarely described diagnostic finding, with variable consequences on kidney function. We present the case of an affected fetus, born at 35-week gestation, with intrauterine oligohydramnios and two small kidneys. A renal ultrasound carried out after birth confirmed the presence of prenatal abnormalities. Renal vein thrombosis was not diagnosed at the time. The baby died 20 days later of kidney failure, metabolic acidosis, and polypnea with severe hypotrophy. Autopsy revealed atrophied kidneys and adrenal glands. The vena cava had thrombosis occupying most of its length. The right renal vein was normal, while the left renal vein was threadlike and not permeable. Histologically, there was necrosis of the left adrenal gland with asymmetrical bilateral renal impairment and signs of ischemic and hemorrhagic lesions. A review of thrombophilia was carried out and a heterozygous mutation in Factor V was found in both the mother and the child.

  18. Brachytherapy for the prevention of neointimal hyperplasia in the canine inferior vena cava after stent placement

    Energy Technology Data Exchange (ETDEWEB)

    Isota, Masayuki; Kaminou, Toshio; Sakai, Yukimasa; Nakamura, Kenji; Yamada, Ryusaku [Osaka City Univ. (Japan). Medical School

    2002-06-01

    The aim of this study was to evaluate the efficacy of brachytherapy for preventing neointimal hyperplasia in the inferior vena cava (IVC) after stent placement. Sixteen beagles underwent Z-stent placement in the IVC and the aorta. For 8 of 16 beagles, irradiation (15 Gy) was delivered endoluminally to the stented segments of each vessel immediately after stent placement using the {sup 192}Ir. All animals were sacrificed after 6 weeks for morphometric and histopathologic examination. Morphometrically, neointimal thickness in the IVC of the radiation group was significantly decreased compared with the control group as well as that in the aorta (p<0.05). Histopathologic findings showed the neointima in the IVC of the control group contained markedly organization of thrombus and neovascularization though that in the IVC of the radiation group consisted mainly of smooth muscle cells without organization of thrombus and neovascularization. From these data intravenous irradiation may prevent clinical restenosis after stent placement. (author)

  19. Acute wiiitis representing as thrombosis of the inferior vena cava and left pelvic veins.

    Science.gov (United States)

    Brodmann, M; Gary, T; Hafner, F; Eller, P; Deutschmann, H; Pilger, E; Seinost, G

    2015-08-01

    Deep venous thrombosis as a result of venous wall injury provoked by trauma is a common finding. It often occurs in patients with sportive overstraining, caused by over fatigue of the body structures. In 2007, the entity of "acute wiiitis" was first described in a letter to the New England Journal of Medicine. Acute wiiitis sums up all affections, mainly skeletal and muscle affections, provoked by playing Nintendo Wii, a very common and loved video-game system. Deep venous thrombosis as a consequence of Nintendo Wii has not been described so far. We present a patient with a massive free floating thrombus of the left pelvic veins originating from the gluteal veins and reaching into the inferior vena cava after playing Nintendo Wii.

  20. SUBCUTANEOUS PHEOHYPHOMYCOSIS CAUSED BY Phoma cava: REPORT OF A CASE AND REVIEW OF THE LITERATURE

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    Clarisse ZAITZ

    1997-01-01

    Full Text Available We report a case of subcutaneous pheohyphomycosis observed in a male patient presenting pulmonary sarcoidosis and submitted to corticosteroid treatment. He presented nodular erythematous-violaceous skin lesions in the dorsum of the right hand. Histopathological examination of the biopsied lesion revealed dematiaceous hyphae and yeast-like cells, with a granulomatous tissual reaction. The isolated fungus was identified as Phoma cava. A review of the literature on fungal infection caused by different Phoma species, is presented. The patient healed after therapy with amphotericin B, followed by itraconazoleO presente trabalho registra um caso de feo-hifomicose subcutânea em paciente do sexo masculino com o diagnóstico de sarcoidose pulmonar, submetido à terapêutica por corticosteróides quando apresentou no dorso da mão direita lesões cutâneas nodulares, eritêmato-violáceas, de aspecto infiltrado, exigindo biópsia para o diagnóstico. O exame histopatológico revelou processo granulomatoso, com a presença de hifas e células arredondadas demácias. Cultivo positivo para fungo identificado com Phoma cava. Os Autores fizeram revisão da literatura sobre as infecções fúngicas provocadas por diversas espécies de Phoma, mostrando a raridade desta observação. A evolução foi favorável com a administração da anfotericina B (via venosa seguida do itraconazol (via oral