Table 5.

Effects of ligustrazine and IP on reperfusion arrhythmia in anesthetized rats

Group	n	VF incidence (%)	Times of ventricular premature beat	VT duration (s)
Control	10	20	8.09 ± 6.82	10.41 ± 5.48
IP	10	0	2.28 ± 2.23a	3.40 ± 4.66b
Ethosome patch	10	0	4.05 ± 4.92	11.79 ± 8.33

Notes: Compared with control group:

^aP < 0.05;

^bP < 0.01.

Abbreviations: IP, ischemic preconditioning; VF, ventricular fibrillation; VT, ventricular tachycardia.