Fig. 2. Ventricular tachycardia (VT)-free rate during 30 min of left anterior descending (LAD) coronary artery ligation. Sustained VT was observed in 83% (15 of 18), 39% (7 of 18), 50% (9 of 18), 89% (16 of 18), and 94% (17 of 18) in the Control, low-dose propofol (Prop-LD), high-dose propofol (Prop-HD), propofol with atropine (Prop-Atr), and sevoflurane (Sevo) groups, respectively. Prop-LD and Prop-HD decreased the incidence of ischemic-induced sustained VT, as compared with the Control ( P < 0.05), Prop-Atr, and Sevo groups ( P < 0.01). * P < 0.05 versus Control. § P < 0.05 versus Prop-LD. # P < 0.05 versus Prop-HD.