Results: 35

Retrospective Analysis of Risk Factors for Related Complications of Chemical Ablation on Hypertrophic Obstructive Cardiomyopathy

Arq. bras. cardiol; 112 (4), 2019
Abstract Background: The analysis of risk factors for predicting related complications has not been reported to date. Objective: This study aims to investigate the risk factors of related complications of percutaneous transluminal septal myocardial ablation (PTSMA) for hypertrophic obstructive cardiomy...

Consumo leve a moderado de álcool e isquemia miocárdica à ecocardiografia sob estresse físico

Fundamento: O impacto do consumo de álcool na evolução da isquemia miocárdica permanece incerto. Os estudos divergem quanto a um eventual efeito cardioprotetor ou a um fator de risco cardiovascular desse consumo de maneira leve a moderada. Objetivo: Estudar a relação do consumo le...

An Alternative Method to Calculate Simplified Projected Aortic Valve Area at Normal Flow Rate

Arq. bras. cardiol; 110 (2), 2018
Abstract Background: Simplified projected aortic valve area (EOAproj) is a valuable echocardiographic parameter in the evaluation of low flow low gradient aortic stenosis (LFLG AS). Its widespread use in clinical practice is hampered by the laborious process of flow rate (Q) calculation. Objetive: This...

Prognostic Value of Coronary Flow Reserve Obtained on Dobutamine Stress Echocardiography and its Correlation with Target Heart Rate

Arq. bras. cardiol; 108 (5), 2017
Abstract Background: Normal coronary flow velocity reserve (CFVR) (≥ 2) obtained in the left anterior descending coronary artery (LAD) from transthoracic echocardiography is associated with a good prognosis, but there is no study correlating CFVR with submaximal target heart rate (HR). Objective:...

Avaliação da Função Diastólica Utilizando Ecocardiografia Doppler e Strain Bidimensional

ABC., imagem cardiovasc; 30 (2), 2017
Fundamento: A avaliação da disfunção diastólica do ventrículo esquerdo (VE) apresenta significativo número de disfunções indeterminadas, principalmente quando a fração de ejeção (FE) está preservada. O strain longitudinal global (SLG), e o strain rate sistólico (SRs) e diastólico precoce ...

Ressonância magnética e doença coronariana: quando o exame faz a diferença?

O diagnóstico de doença coronariana e a quantificação de isquemia miocárdica tem se tornado cada vez mais necessário. Apesar de ainda haver controvérsia, estudos clínicos têm demonstrado que pacientes com carga isquêmica moderada ou alta têm pior prognóstico, a despeito de terapia clínica co...

Métodos de avaliação da perfusão miocárdica

A doença arterial coronariana é altamente prevalente. A caracterização anatômica apenas não é suficiente para determinar o grau de isquemia que uma estenose acarreta, especialmente nos momentos de demanda aumentada. Os métodos de avaliação da perfusão miocárdica permitem caracterizar a reperc...

Dobutamine Stress Echocardiography Safety in Chagas Disease Patients

Arq. bras. cardiol; 108 (2), 2017
Abstract Background: A few decades ago, patients with Chagas disease were predominantly rural workers, with a low risk profile for obstructive coronary artery disease (CAD). As urbanization has increased, they became exposed to the same risk factors for CAD of uninfected individuals. Dobutamine stress e...

Comparative Study between Perfusion Changes and Positive Findings on Coronary Flow Reserve

Arq. bras. cardiol; 108 (1), 2017
Abstract Background: Functional assessment of coronary artery obstruction is used in cardiology practice to correlate anatomic obstructions with flow decrease. Among such assessments, the study of the coronary fractional flow reserve (FFR) has become the most widely used. Objective: To evaluate the cor...