[Surgical treatment of a case of arrhythmogenic right ventricular dysplasia with local myocardial resections].

A 39-year-old man who was diagnosed as ARVD (arrhythmogenic right ventricular dysplasia) with nonischemic sustained ventricular tachycardia (VT) was successfully treated by surgical resection of two parts of the right ventricular free wall, one was the site of earliest excitation during induced VT and the other was an area where delayed potentials were detected during sinus rhythm. A surface mapping was made by means of a computer guided system. A preoperative study of endocardial mapping and a programmed electrical stimulation test were an useful adjunct for surgical management of ARVD. After surgery VT could not be induced by triple extrastimuli and up to now there has been no recurrence of VT more than 2 years after surgery without medication.