[Clinical analysis of arrthythmogenic right ventricular cardiomyopathy].

OBJECTIVE

To investigate the clinical features of arrthythmogenic right ventricular cardiomyopathy (ARVC), and to evaluate the diagnosis of ARVC.

METHODS

Twenty-three cases of ARVC underwent ECG, chest x-ray, Holter, transesophageal atrial pacing (TEAP) and intracardiac electrophysiological examination.

RESULTS

A syncope attack occurred; the percentage of frequent ventricular premature beats was 95.7%, salvos of the right ventricular originated ventricular tachycardia (VT) was 87%, and the right bundle branch block (RBBB) demonstrated by ECG was 87%; UCG showed that the enlarged right ventricular diametric was (50.1 +/- 8.83) mm, and the right atrium diametric was (48 +/- 8.79) mm; the ratio of right ventricular diametric to left ventricular diametric in the end-diastolic period was 1.09. The right ventricular function [ejection fraction: (0.325 +/- 0.0902)] decreased, which was confirmed by echocardiogram.

CONCLUSION

The diagnosis of ARVE can be established on the basis of the repeated syncope attack; RBBB, frequent ventricular premature beats, VT of LBBB patterms, an enlarged right heart and decreased right ventricular function can be found, the ratio of right ventricular dimaetric to left ventricular diametric increases in the end-diastolic period.