in cases of arrhythmia , ventricular premature contraction ( vpc ) was the most predominant , in 291 cases ( 69 % ) out of 423 with arrhythmia , followed by 59 ( 14 % ) with supraventricular premature contraction ( svpc ) , 23 ( 5.4 % ) with paroxysmal atrial tachycardia , 17 ( 4 % ) with second degree a-v block and 10 ( 2.3 % ) with transient atrial fibrillation ( af ) .
C0003811
arrhythmia
C0004238
atrial fibrillation