[Relationship between ventricular arrhythmia and cardiac function in Chagas disease]

Arq Bras Cardiol. 1995 Jun;64(6):533-5.
[Article in Portuguese]


Purpose: It is well established the association between heart failure and arrhythmias in different cardiopathies. There are no studies in Chagas' myocardiopathy that analyze the relation between arrhythmias and left ventricular function.

Methods: We studied 629 patients with Chagas' disease, divided in 3 groups, according to ejection fraction obtained through echocardiographic study (normal, between 0.64 and 0.45, and below 0.44).

Results: At conventional ECG, the presence of ventricular arrhythmias was respectively in the 3 groups: 15%, 36% and 64%, showing higher incidence when left ventricular function was getting worse.

Conclusion: Ventricular arrhythmias in Chagas' disease are frequent in patients with normal ejection fraction, and become more intense as ventricular dysfunction progresses.

Publication types

  • English Abstract

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Arrhythmias, Cardiac / epidemiology
  • Arrhythmias, Cardiac / parasitology
  • Arrhythmias, Cardiac / physiopathology*
  • Chagas Cardiomyopathy / physiopathology*
  • Child
  • Echocardiography
  • Electrocardiography
  • Female
  • Heart Failure / parasitology
  • Heart Failure / physiopathology*
  • Humans
  • Incidence
  • Male
  • Middle Aged
  • Prognosis
  • Stroke Volume
  • Ventricular Function / physiology