Results: 13

Diagnóstico diferencial de las taquicardias de complejo ancho: un desafío permanente

Rev. chil. cardiol; 39 (1), 2020
El diagnóstico electrocardiográfico correcto de la causa de una taquicardia de complejo QRS ancho (TCA) es fundamental, ya que tanto el manejo, como el pronóstico del paciente, es diferente según su etiología, y define el estudio que debemos realizar. Numerosos criterios y algoritmos han sido descri...

Primary Ventricular Fibrillation in a Patient with Mild Hypercalcemia

Arq. bras. cardiol; 110 (4), 2018

Non-Sustained Ventricular Tachycardia Episodes Predict Future Hospitalization in ICD Recipients with Heart Failure

Arq. bras. cardiol; 109 (4), 2017
Abstract Background: Implantable cardioverter-defibrillator (ICD) therapy is well known to reduce mortality in selected patients with heart failure (HF). Objective: To investigate whether monitored episodes of non-sustained ventricular tachycardia (NSVT) might predict future HF hospitalizations in ICD ...

Prognostic Factors in Severe Chagasic Heart Failure

Arq. bras. cardiol; 108 (3), 2017
Abstract Background: Prognostic factors are extensively studied in heart failure; however, their role in severe Chagasic heart failure have not been established. Objectives: To identify the association of clinical and laboratory factors with the prognosis of severe Chagasic heart failure, as well as th...

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...

Ablação com mapeamento eletroanatômico de taquicardia ventricular recorrente refratária a terapia medicamentosa na cardiomiopatia dilatada isquêmica em portador de cardiodesfibrilador multissítio

As arritmias ventriculares em portadores de cardiomiopatia isquêmica estão diretamente relacionadas ao aumento da morbimortalidade, sendo sua recorrência associada a pior prognóstico. A despeito da otimização do tratamento medicamentoso, muitos são os pacientes refratários, e, nesse contexto, a a...

O eletrocardiograma de alta resoluçäo durante taquicardia ventricular

Arq. bras. cardiol; 62 (6), 1994
PURPOSE--To evaluate by the signal averaged-ECG (SAECG) the initial portion of the activation of the sustained ventricular tachycardia (SVT) and monomorphic repetitive ventricular tachycardia (MRVT), correlating the findings with those obtained during sinus rhythm (SR). METHODS--Ten patients was studied;...

Análise de potenciais tardios em pacientes com arritmias ventriculares malignas

Arq. bras. cardiol; 62 (2), 1994
PURPOSE--To assess the relationship between late potentials and spontaneous ventricular arrhythmias, organic heart disease, inducibility of arrhythmias at electrophysiological study and ejection fraction. METHODS--The population is comprised by 52 patients (41 men, 11 women with mean age 50 +/- 16 years)...