REPOLARIZATION AND ATRIOVENTRICULAR-CONDU CTION DISTURBANCES IN ARRHYTHMOGENIC RIGHT-VENTRICULAR DYSPLASIA

Right ventricular dysplasia may lead to sudden cardiac death an adoles cent or adult with little or no symptoms. Identification of this condi tion in the high-risk population appears to be an objective to be atta ined in the near future. Thorough ECG analysis seems to be a non-invas ive and inexpensive technique which could be used as a first approach for screening of the disorder. In a series of 50 cases of arrhythmogen ic right ventricular dysplasia compared with a control group, the diag nosis of ARVD could be determined by ECG with 84% sensitivity and 100% specificity if QRS duration in leads V1, V2 or V3 was longer than 110 ms, T wave was negative in V2 or if T wave was negative in V1, but in this latter case only provided incomplete right bundle branch block w as present.