in predominance of sympathetic effects during stimulation of negative emotiogenic hypothalamic centers , the threshold of arrhythmia origin decreased by 45 % for ventricular extrasystole , by 32 % for paroxysmal ventricular tachysystole and by 24 % for ventricular fibrillation .
C0003811
arrhythmia
C0042510
ventricular fibrillation