致心律失常性右心室发育不良的心电表现

Clinical cardiac electrophysiological charaeristics of arrhythmogenic right ventricular dysplasia

5例致心律失常性右室发育不良,共同的心电特征是:1.反复发作LBBB型室速;2.右胸导联QRS波示右室肥大或呈RBBB,或形态介于两者之间(3例有J波);3.Tv_1-3倒置;4.心室晚电位阳性;5.电生理检查可诱发LBBB型室速。这些特点可为本病的诊断提供线索。

Five cases of arrhythmogenic right ventricular dysplasia (ARVD), 4 male, 1 female, age of 2S to 65 (37.2) years were included in the study. The main criteria for clinical diagnosis of ARVD were recurrent sustained venticular tachycardia (VT), morphological and functional abnormality in right ventricle, and ruling out other diseases which mainly involved the right ventricle. The following were their electrocardiographic and electrophysiologic characteristics: 1. Recurrent VT of LBBB patern. 2. QRS complex in right precardial lead presented a right ventricular hypertrophy (RVH) pattern or RBBB patern or some pattern in between. 3. Inverted T waves in lead V_(1～3), J wave in 3 cases. 4. Presence of venticular late poential. 5. LBBB pattern VT induced by electrophysiological studies. Our observaion suggests that ARVD should be suspected in patients with recurrent LBBB-VT and with the cardiac electrical features described above. Right ventricle should be carefully examined in suspected patients.