Results: 328

Quantification of DNA Damage in Different Tissues in Rats with Heart Failure

Arq. bras. cardiol; 114 (2), 2020
Abstract Background: Chronic heart failure (CHF) is a complex syndrome which comprises structural and functional alterations in the heart in maintaining the adequate blood demand to all tissues. Few investigations sought to evaluate oxidative DNA damage in CHF. Objective: To quantify the DNA damage usi...

Enhanced external counterpulsation improves cardiac function in Beagles after cardiopulmonary resuscitation

Braz. j. med. biol. res; 53 (1), 2020
The aim of this study was to investigate the influence of enhanced external counterpulsation (EECP) on the cardiac function of beagle dogs after prolonged ventricular fibrillation. Twenty-four adult male beagles were randomly divided into control and EECP groups. Ventricular fibrillation was induced in t...

Efeitos do banho no leito a seco e tradicional sobre as alterações oxi-hemodinâmicas: ensaio clínico randomizado cruzado

Em virtude dos riscos gerados para os pacientes pelo tradicional banho no leito, métodos alternativos como o banho a seco, vem sendo incorporados à prática clínica. No entanto, há carência de estudos que comparem os efeitos oxi-hemodinâmicos desses dois banhos. Assim, realizou-se esta pesquisa com...

Ligadura de fuga venosa dorsal profunda en pene: Revisión de la literatura y técnica quirúrgica paso a paso

La disfunción venoclusiva peneana (VOD), está siendo reconocida como una causa importante de disfunción eréctil en especial en pacientes jóvenes. Recientemente se han sugerido fisiopatologías novedosas y se han mejorado notablemente los métodos diagnósticos, lo que genera un campo en redescubrimi...

Chronic aerobic exercise associated to low-dose L-NAME improves contractility without changing calcium handling in rat cardiomyocytes

Braz. j. med. biol. res; 53 (3), 2020
Nitric oxide (NO) inhibition by high-dose NG-nitro-L-arginine methyl ester (L-NAME) is associated with several detrimental effects on the cardiovascular system. However, low-dose L-NAME increases NO synthesis, which in turn induces physiological cardiovascular benefits, probably by activating a protectiv...

Hemodynamic and imaging assessment of transcatheter aortic valve replacement with the inovare® proseal using multislice computed tomography

Abstract Objective: To evaluate the hemodynamic performance (i.e., gradients and paravalvular leakage [PVL]) of the new and experimental Braile Inovare® Proseal. Additionally, we aimed to assess pre and postoperatively the aortic annulus and the transcatheter prosthesis using multislice computed tomogr...

Impact of vacuum-assisted venous drainage on forward flow in simulated pediatric cardiopulmonary bypass circuits utilizing a centrifugal arterial pump head

Abstract Objective: To analyze the impact of vacuum-assisted venous drainage (VAVD) on arterial pump flow in a simulated pediatric cardiopulmonary bypass circuit utilizing a centrifugal pump (CP) with an external arterial filter. Methods: The simulation circuit consisted of a Quadrox-I Pediatric oxygen...

Comparación midazolam vs dexmedetomidina en pacientes con síndrome de apnea obstructiva del sueño

Rev. chil. anest; 49 (5), 2020
OBJECTIVE: To compare the efficacy and safety of sedation with midazolam vs dexmedetomidine in patients with high probability of obstructive sleep apnea, to assess hemodynamic parameters, ventilation and depth of hypnosis. METHODS: Patients scheduled to regional anesthesia and sedation participated in th...

Cirugía de hombro en posición silla de playa: estrategias y recomendaciones para la prevención de complicaciones isquémicas

Rev. chil. anest; 49 (1), 2020
Beach chair position is require for Shoulder surgery frequently for proper resolution. The stroke associated with shoulder surgery is a rare complication and probably underreported. The objective of this article is to review the pathophysiology of the ischemic damage associated with beach chair position,...

Prevalência de nefropatia induzida por contraste em pacientes cardíacos de um setor de hemodinâmica

Objetivo: Determinar a prevalência da nefropatia induzida por contraste em pacientes cardiopatas submetidos a procedimentos angiográficos de diagnóstico e/ou tratamento. Método: Estudo prospectivo, quantitativo, realizado no setor de hemodinâmica de um hospital de grande porte, situado na região no...