during a mean follow-up period of 7.5 +/- 4.9 years , 11 of the 42 patients had documented arrhythmias : 2 patients from group ii and 2 patients from group iii had supraventricular tachycardia and 7 patients from group iii had atrial fibrillation .
C0003811
arrhythmias
C0004238
atrial fibrillation