[Ventricular diastolic function: a correlation between phonomechanocardiography and echo-Doppler].

With the purpose to compare phonomechanocardiography and echo Doppler in the assessment of diastolic function of the left ventricle, we study 45 patients (30 male and 15 female) average age 50 +/- 9 years. We performed phonomechanocardiogram, echo-M, 2-D and Doppler transmitral. They were classified in four group according to mitral flow pattern: normal 14 patients; pattern I by Appleton (PI) 14 patients, 11 with aortic stenosis and 3 with hypertrophic cardiomyopathy; pattern II (PII) 12 patients with dilated cardiomyopathy grade III-IV and the last group of 5 patients with myocardial infarction with normal mitral flow but with impaired diastolic function by phonomechanocardiography.

[Differences between patients with right bundle branch block and left anterior hemiblock in Chagas myocardiopathy].

In order to establish whether different kinds of conduction disturbances like complete right branch block (CRBB) and left anterior hemiblock (LAH) are associated with different degrees of myocardial damage in Chagas disease (Chd), we studied 25 patients (p), 15 males and 10 women (41 +/- 5 years old) who were divided into five groups: normal EKG 5 p, incomplete right branch block 5 p, CRBB-LAH 5 p. We performed EKG, phonocardiogram, echo-M, 2-D and Doppler. The systolic function was evaluated with velocity of circumferential shortening and Weissler index; parietal motility with score of motility; dilatation with diastolic diameter of left ventricle and diastolic function with isovolumetric relaxation time and E/A ratio mitral and tricuspid.

[Diastolic function in Chagas disease].

With the purpose of analyzing diastolic function in Chagas, disease (ECh), 42 patients were studied: 31 males (aged 33 +/- 9), 22 of them with positive serology for ECh and 9 with negative serology; 11 female patients (aged 36 +/- 12), 10 with positive serology and 1 with negative serology. In all patients 2 D-Echo and simultaneous EKG, phonocardiogram, apexcardiogram and M-mode Echo at 100 mm/sec were taken. The A2-D, A2-O (total apexcardiographic relaxation-RAT), a/D (diastolic amplitude of "a" wave), ITRAT = A2 - C/RAT, DDVI, DSVI, shortening fraction (FA) and percentage of dimension changes (D D%) were determined.

[Comparative multicenter clinical study of flecainide and amiodarone in the treatment of ventricular arrhythmias associated with chronic Chagas cardiopathy].

Eighty one patients with ventricular arrhythmias associated with chronic Chagas disease participated in this multi-clinic study. Treatment with Amiodarone and Flecainide were compared using an open, parallel, randomized experimental design. Inclusion criteria required the selected patients to have 1,200 premature ventricular contractions per 24 hours and/or repetitive ventricular arrhythmias.