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Search Results: 1 - 10 of 15769 matches for " William Uribe "
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La Electrofisiología Cardiovascular en Colombia Cardiovascular Electrophysiology in Colombia
William Uribe Arango
Revista Colombiana de Cardiología , 2011,
Abstract:
Theta-functions on the Kodaira-Thurston manifold
William D. Kirwin,Alejandro Uribe
Mathematics , 2007,
Abstract: The Kodaira--Thurston M manifold is a compact, 4-dimensional nilmanifold which is symplectic and complex but not Kaehler. We describe a construction of theta-functions associated to M which parallels the classical theory of theta-functions associated to the torus (from the point of view of representation theory and geometry), and yields pseudoperiodic complex-valued functions on R^4. There exists a three-step nilpotent Lie group G which acts transitively on the Kodaira--Thurston manifold M in a Hamiltonian fashion. The theta-functions discussed in this paper are intimately related to the representation theory of G in much the same way the classical theta-functions are related to the Heisenberg group. One aspect of our results which has not appeared in the classical theory is a connection between the representation theory of G and the existence of Lagrangian and special Lagrangian foliations and torus fibrations in M.
Descripción de resultados clínicos con una dosis modificada de amiodarona para la conversión de la fibrilación auricular aguda a ritmo sinusal Description of the clinical outcomes with an amiodarone modified dose for the conversion of acute atrial fibrillation to sinus rhythm
William Uribe,Esteban Uribe,Laura Arango,Beatriz Sánchez
Revista Colombiana de Cardiología , 2009,
Abstract: Introducción: la fibrilación auricular es el disturbio del ritmo cardiaco sostenido más común. La amiodarona es un antiarrítmico que se usa para la conversión a ritmo sinusal, y la dosis que más se emplea reporta una tasa de éxito de 45% a 85% en las primeras veinticuatro horas; sin embargo, no hay consenso en cuanto a la dosis óptima para el tratamiento de la fibrilación auricular. Objetivo: evaluar la eficacia de amiodarona intravenosa durante las primeras setenta y dos horas en la conversión a ritmo sinusal de pacientes con episodios agudos de fibrilación auricular utilizando una modificación de la dosis recomendada. Métodos: estudio descriptivo-retrospectivo de un grupo de pacientes con episodio agudo de fibrilación auricular durante enero de 2000 a junio de 2006, tratados con la dosis propuesta de amiodarona intra-venosa. Resultado: se evaluaron las historias clínicas de 152 pacientes. La edad promedio fue 61,8 ± 16,9 a os; 63,2% de los pacientes era de género masculino. La tasa de conversión a ritmo sinusal fue de 70,5%; de éstos, 81,3% lo hicieron en las primeras veinticuatro horas. La presencia de cardiopatía dilatada y fibrilación auricular permanente, y la respuesta ventricular lenta se asociaron al fracaso de conversión a ritmo sinusal, OR 4,7; 11,5 y 10,2 respectivamente (p < 0,05). Tener corazón sano se asoció con el éxito de conversión a ritmo sinusal, observándose como factor protector (OR 0,28 y p= 0,011). Conclusiones: la dosis de amiodarona propuesta mostró ser eficaz y segura por la baja frecuencia de efectos adversos. Además, resultó costo-efectiva al compararse con otros medicamentos antiarrítmicos disponibles en nuestro medio. Introduction: atrial fibrillation is the most common sustained cardiac arrhythmia. Amiodarone is an antiarrhythmic used for conversion to sinus rhythm. A success rate of 45 to 85% in the first 24 hours is reported for the most commonly used dose. However, there is no consensus as to the optimal dose for treatment of atrial fibrillation. Objetive: to evaluate the efficacy of IV amiodarone during the first 72 hours for conversion to sinus rhythm in patients with acute episodes of atrial fibrillation using a modification of the recommended dose. Methods: descriptive and retrospective study of all patients presenting with acute atrial fibrillation between January 2000 and June 2006 managed with the proposed dose of IV amiodarone. Results: clinical records of 152 patients were evaluated. Average age was 61.8 ± 16.9 years (SD). 63.2% of patients were male. The rate of conversion to sinus rhythm was 70.5%. Of these,
Guías de manejo de enfermedad pericárdica y miocarditis
Marín,Jorge E; Duque,Mauricio; Uribe,William; Medina,Eduardo;
Revista Colombiana de Cardiología , 2005,
Abstract: pericardium is a structure that can be primarily affected by a series of different agents and in a secondary way by systemic processes. its response is not specific and in general it corresponds to an inflammatory process that can be acute, chronic or recurrent. the recognition of these pathologies is of vital significance in the making of a right therapeutic approach. some basic orientations for the correct classification, diagnosis and therapy of main pericardial syndromes, based on clinical and etiological aspects and paraclinical available aids are presented. likewise, some recommendations for the specific treatment of each one of the main entities usually affecting the pericardium are given. next, a brief mention of some physiopathological aspects of acute myocarditis, its main etiologies, and the treatment of the cardiac failure secondary to the disease with its specific differences, is made, and the controversy on its handling with immunosuppressors and the experimental therapy measures are studied in depth. we intended to follow until possible the recommendations of medicine based on evidence with grades already recognized in international medical literature.
Guías de manejo de enfermedad pericárdica y miocarditis Pericardial disease and myocarditis: management guide
Jorge E Marín,Mauricio Duque,William Uribe,Eduardo Medina
Revista Colombiana de Cardiología , 2005,
Abstract: El pericardio es una estructura que se ve afectada, de forma primaria, por una serie de agentes de diversa índole, y de forma secundaria, por procesos sistémicos. Su respuesta es inespecífica y generalmente lo constituye un proceso inflamatorio que puede ser agudo, recurrente o crónico. El reconocimiento de estas patologías es de vital importancia para su correcto enfoque terapéutico. En estas guías se presentan algunas orientaciones básicas para la correcta clasificación, diagnóstico y terapia de los principales síndromes que afectan al pericardio, basados en los aspectos clínicos, etiológicos y de ayudas paraclínicas de los cuales se dispone en la actualidad. También se dan algunas recomendaciones de tratamiento específico para cada una de las principales entidades que normalmente afectan al pericardio. En la segunda parte del manuscrito se hace una breve mención de algunos aspectos fisiopatológicos de la miocarditis aguda, sus principales causas, y el tratamiento de la falla cardiaca que la enfermedad produce con sus diferencias puntuales, y se profundiza un poco sobre la controversia de su manejo con inmunosupresión y las medidas experimentales para su terapia. Metodológicamente se trató de seguir, hasta donde fue posible, las recomendaciones de medicina basada en evidencia, con grados de recomendación ya reconocidos en la literatura médica internacional. Pericardium is a structure that can be primarily affected by a series of different agents and in a secondary way by systemic processes. Its response is not specific and in general it corresponds to an inflammatory process that can be acute, chronic or recurrent. The recognition of these pathologies is of vital significance in the making of a right therapeutic approach. Some basic orientations for the correct classification, diagnosis and therapy of main pericardial syndromes, based on clinical and etiological aspects and paraclinical available aids are presented. Likewise, some recommendations for the specific treatment of each one of the main entities usually affecting the pericardium are given. Next, a brief mention of some physiopathological aspects of acute myocarditis, its main etiologies, and the treatment of the cardiac failure secondary to the disease with its specific differences, is made, and the controversy on its handling with immunosuppressors and the experimental therapy measures are studied in depth. We intended to follow until possible the recommendations of medicine based on evidence with grades already recognized in international medical literature.
Ronda clínica y epidemiológica
Oscar Osío Uribe,José William Cornejo Ochoa
Iatreia , 2007,
Abstract:
Carcinoma hepatocelular (CHC). Factores de riesgo, diagnóstico y tratamiento. Hospital Pablo Tobón Uribe, 1995-2000
érika Salazar,Hilda Betancur,Catalina Uribe,William Mejía
Iatreia , 2001,
Abstract: Por estudios epidemiológicos sabemos que el CHC es el octavo cáncer más frecuente en el mundo; también que es 3 veces más frecuente en hombres que en mujeres tanto en el mundo como en Antioquia (1,2) y que se presentan 350.000 casos nuevos cada a o. Nuestro objetivo es describir el comportamiento clínico y epidemiológico del CHC en la población usuaria del HPTU entre enero de 1995 y julio del 2000.
Tromboembolismo pulmonar masivo de alto riesgo asociado a foramen oval permeable High-risk massive pulmonary thromboembolism associated with patent foramen ovale
Antonio Miranda,Sergio Franco,William Uribe,Mauricio Duque
Medicina (Buenos Aires) , 2012,
Abstract: La alta mortalidad de los pacientes con tromboembolismo pulmonar masivo de alto riesgo amerita un enfoque terapéutico enérgico e invasivo que incluya la embolectomía pulmonar quirúrgica en aquellos pacientes con contraindicación para trombolisis o trombolisis fallida. Describimos un caso de tromboembolismo pulmonar masivo de alto riesgo que recibió tratamiento quirúrgico en vez de trombolisis debido a que al momento del diagnóstico presentaba un trombo móvil a través de un foramen oval permeable con altísima posibilidad de embolismo paradójico arterial. High mortality rate associated with massive pulmonary embolism requires an aggressive invasive approach including surgical pulmonary embolectomy when thrombolytic therapy has failed or is contraindicated. We describe a case of high-risk massive pulmonary embolism who underwent surgical treatment due to the presence of a mobile intracardiac clot in a patent foramen ovale, and the possible risk of paradoxical arterial embolism.
Tromboembolismo pulmonar masivo de alto riesgo asociado a foramen oval permeable
Miranda,Antonio; Franco,Sergio; Uribe,William; Duque,Mauricio; Femenía,Francisco; Baranchuk,Adrián;
Medicina (Buenos Aires) , 2012,
Abstract: high mortality rate associated with massive pulmonary embolism requires an aggressive invasive approach including surgical pulmonary embolectomy when thrombolytic therapy has failed or is contraindicated. we describe a case of high-risk massive pulmonary embolism who underwent surgical treatment due to the presence of a mobile intracardiac clot in a patent foramen ovale, and the possible risk of paradoxical arterial embolism.
Cardiomiopatía amiloidea
Marín,Jorge E; Duque,Mauricio; Medina,Luis E; Uribe,William; Velásquez,Jorge E;
Revista Colombiana de Cardiología , 2005,
Abstract: amyloidosis is an infiltrative systemic disease that may involve the heart. it has a genetic etiology and is an important cause of restrictive cardiomyopathy. it may involve all heart structures but has a great affinity for myocardial tissue. diastolic dysfunction is the most early and frequent manifestation, although due to myocardial infiltration, it may progress to systolic dysfunction, resulting in a rigid heart syndrome. there is also an involvement of the conducting system. the condition may be suspected in any patient with cardiomegalia of unexplained cause. among the diagnostic tools, the voltage/mass relation may be kept in mind. endomyocardial biopsy is useful although it is not always positive through histological verification. the treatment consists of supportive measures and selected cases may benefit with hepatic transplantation.
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