Results: 538

Variabilidade da frequência cardíaca em pacientes com dor lombar: uma revisão sistemática

Introdução: A lombalgia se caracteriza como uma dor de origem multifatorial que pode resultar em alterações no sistema nervoso autônomo. Estas alterações são identificadas pelo aumento da modulação simpática cardíaca levando a diminuição da variabilidade da frequência cardíaca (VFC). Obje...

Utilidad práctica de la monitorización de la frecuencia cardiaca durante el ejercicio físico

Rev. colomb. cardiol; 25 (3), 2018
La práctica de actividad física dirigida y programada, o incluso la promoción de un estilo de vida más activo, son cada vez más difundidas. De hecho, es claro que los beneficios de realizar estas actividades de forma regular constituyen un factor protector frente al desarrollo de patologías crónic...

Virtual reality exposure therapy for fear of driving: analysis of clinical characteristics, physiological response, and sense of presence

Objective: To investigate the reactions of women with driving phobia to a therapeutic program of scheduled virtual reality exposure treatment (VRET) sessions. Methods: The study intervention consisted of a computer game with car-driving scenarios that included several traffic situations. We investigated...

Ivabradine use in patients with HFrEF in the heart failure multidisciplinary program (PIC) in a private hospital: first registration and 3-years follow up, Central American (CA) region

Rev. costarric. cardiol; 20 (1), 2018
Abstract Introduction and objectives: Heart rate (HR) elevation in patients (p) with heart failure with reduced ejection fraction (HFrEF) is related to increased mortality and hospitalization for HF; its reduction improves the filling of the left ventricle, increases the myocardial oxygen supply and red...

Bouts of exercise elicit discordant testosterone: cortisol ratios in runners and non-runners

ABSTRACT Objective: The testosterone:cortisol ratio (T:C) is suggested to be used in order to examine whether physical exercise generates either a "catabolic environment" or an "anabolic environment". The present study aims to evaluate the acute time-course profile of cortisol and testosterone due to an...

Taquicardia por reentrada ramo ramo

A taquicardia por reentrada ramo a ramo, apesar de ter sido descrita há cerca de 30 anos, é entidade por vezes desconhecida de muitos cardiologistas e, por vezes, não identificada por eletrofisiologistas. Provavelmente subdiagnosticada, em especial nos portadores de cardiomiopatia dilatada, essa entid...

Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot Study

Arq. bras. cardiol; 110 (4), 2018
Abstract The study of myocardial contractility, based on the new anatomical concepts that govern cardiac mechanics, represents a promising strategy of analysis of myocardial adaptations related to physical training in the context of post-infarction. We investigated the influence of aerobic training on ph...

Heart Rate and its Variability Assessed by Spectral Analysis in Elderly Subjects with Orthostatic Hypotension: A Case-Control Study

Arq. bras. cardiol; 110 (4), 2018
Abstract Background: The prevalence of orthostatic hypotension (OH) increases with age and is associated with changes in autonomic regulation of blood pressure (BP) and heart rate (HR). Objective: to assess HR and HR variability (HRV) in elderly subjects with OH and determine OH predictors. Methods: a...

Mid-Term Results of Surgical Treatment of Atrial Fibrillation in Valvular Heart Disease Assesed by Speckle Tracking Echocardiography

Arq. bras. cardiol; 110 (4), 2018
Abstract Background: Atrial fibrillation frequently affects patients with valvular heart disease. Ablation of atrial fibrillation during valvular surgery is an alternative for restoring sinus rhythm. Objectives: This study aimed to evaluate mid-term results of successful atrial fibrillation surgical ab...