A 26-year-old patient with an irrelevant personal and family-history was treated on account of attacks of relapsing ventricular tachycardia and cardiac failure, mostly dextrolateral. After ruling out other possible causes of the disease--such as embolism of the lungs, ischaemic heart disease, out other possible causes of the disease--such as embolism of the lungs, ischaemic heart disease, Ebstein's anomaly, the diagnosis of an arrhythmogenic right ventricle was established. This disease is suggested by negative T waves in the thoracic leads V1-V3 during sinus rhythm and by the shape of the QRS complex which was the type found in block of the Tawara branch with an axis of + 100 degrees during attacks of ventricular tachycardia. Moreover, ventricular tachycardia of the same type was produced during electrocardiographic examination. On angiographic examination ARVD is suggested by marked trabeculization and impaired kinetics of the outflow tract of the right ventricle. In the prevention of relapses of ventricular tachycardia beta-blockers and Cordarone were successful when used simultaneously with cardiac stimulation type AAI applied on account of a confirmed sinoatrial block.

Keywords: Adult; Electrocardiography; Humans; Male; Tachycardia, Ventricular /diagnosis/; Ventricular Dysfunction, Right /diagnosis/