Results: 328

Effects of Nitrate Intake on Myocardial Ischemia-Reperfusion Injury in Diabetic Rats

Arq. bras. cardiol; 107 (4), 2016
Abstract Background: Coronary artery disease is 2-3 times more common in diabetic individuals. Dietary nitrate/nitrite has beneficial effects in both diabetes and cardiovascular disease. It also has protective effects against myocardial ischemia-reperfusion (IR) injury in healthy animals. However, the e...

In-vitro evaluation of two types of neonatal oxygenators in handling gaseous microemboli and maintaining optimal hemodynamic stability during cardiopulmonary bypass

Abstract Objective: Usually only FDA-approved oxygenators are subject of studies by the international scientific community. The objective of this study is to evaluate two types of neonatal membrane oxygenators in terms of transmembrane pressure gradient, hemodynamic energy transmission and gaseous micro...

Reduced Systolic Volume: Main Pathophysiological Mechanism in Patients with Orthostatic Intolerance?

Arq. bras. cardiol; 107 (4), 2016
Abstract Background: Orthostatic intolerance patients' pathophysiological mechanism is still obscure, contributing to the difficulty in their clinical management. Objective: To investigate hemodynamic changes during tilt test in individuals with orthostatic intolerance symptoms, including syncope or ne...

Estrés hemodinámico inducido por ejercicio: bases fisiológicas e impacto clínico

Arch. cardiol. Méx; 86 (3), 2016
La regulación fisiológica de la función vascular es esencial para la salud cardiovascular y depende de un adecuado control de mecanismos moleculares desencadenados por células endoteliales en respuesta a estímulos mecánicos y químicos inducidos por flujo sanguíneo. La disfunción endotelial es un...

Importância dos cuidados de enfermagem no cateterismo cardíaco

Ciênc. cuid. saúde; 15 (3), 2016
RESUMO O cateterismo cardíaco é um método de diagnóstico invasivo, utilizado no tratamento precoce de pacientes com problemas cardíacos. Objetivou-se nesse estudo verificar as complicações ocorridas e os principais cuidados de enfermagem realizados antes, durante e após o cateterismo cardíaco, a...

Chronic heart failure modifies respiratory mechanics in rats: a randomized controlled trial

ABSTRACT Objective To analyze respiratory mechanics and hemodynamic alterations in an experimental model of chronic heart failure (CHF) following myocardial infarction. Method Twenty-seven male adult Wistar rats were randomized to CHF group (n=12) or Sham group (n=15). Ten weeks after coronary ligation...

Evaluation of choroidal and retinal thickness measurements in adult hemodialysis patients using spectral-domain optical coherence tomography

Arq. bras. oftalmol; 79 (4), 2016
ABSTRACT Purpose: To assess the effect of hemodialysis on retinal and choroidal thicknesses using spectral-domain optical coherence tomography (SD-OCT). Methods: In this prospective interventional study, 25 hemodialysis patients (17 male, 8 female) were enrolled. All participants underwent high-speed, ...

Calidad de imagen y seguridad durante intervenciones de hemodinamia: diferencia entre arco c ajustado y angiógrafo: síntesis rápida de evidencia
Image quality and safety during hemodynamic procedures: difference between c-arm and angiography

ANTECEDENTES Y OBJETIVO Las enfermedades coronarias susceptibles de ser atendidas en unidades asistenciales con soporte de hemodinamia (en específico angiógrafo) suponen una importante carga asistencial en los hospitales del Sistema Nacional de Salud. Debido a esto, en algunos centros se evalúa realiz...

Uso de packing preperitoneal en paciente politraumatizado

Rev. chil. cir; 68 (4), 2016
Objetivo Reportar un caso de grave fractura pélvica y sangrado masivo tratado inicialmente con packing pélvico. Caso clínico Paciente precipitado hemodinámicamente debido a varias fracturas abiertas, entre las que se incluye fractura pélvica con importante diástasis púbica. Se decide intervención...

Contractilidad ventricular: fisiología y proyección clínica

Rev. méd. Chile; 144 (6), 2016
The contractile state of the heart is the result of myocardial contractility, the intrinsic mechanism that regulates the force and the shortening of the ventricle and determines the ventricular ejection volume. However, the ejection volume is also modulated by ventricular preload (diastolic ventricular v...