high grade ventricular arrhythmias ( 3 , 4a , 4b ) were observed in 5 patients ( 31 % ) , and minor arrhythmias ( grades 1 and 2 ) in 7 ( 44 % ) , while 4 patients ( 25 % ) showed no ventricular arrhythmia .
C0003811
arrhythmias
C0085612
ventricular arrhythmia