sixty patients had atrial arrhythmias ( 29 atrial fibrillation , 2 atrial flutter , 22 atrial tachycardia , 7 premature atrial contractions ) and 4 patients had ventricular arrhythmias ( 1 ventricular tachycardia , 1 ventricular flutter , 2 premature ventricular contractions ) .
C0085612
ventricular arrhythmias
C0042514
ventricular tachycardia