of the 30 patients with ventricular fibrillation as the initial arrhythmia , 13 had inducible arrhythmias -- ventricular fibrillation ( 4 patients ) , sustained ventricular tachycardia ( 6 patients ) and nonsustained ventricular tachycardia ( 3 patients ) .
C0003811
arrhythmias
C0042510
ventricular fibrillation