Fig. 4.

Evaluation of ischemia reperfusion-induced arrhythmias according to the Lambeth convention. Number of ventricular ectopic beats (VEBs), episodes of ventricular tachycardia (VT) and ventricular fibrillation (VF) in experimental groups. In ischemic preconditioning groups (IPC) three episodes of transient ischemia and reperfusion were induced before the onset of sustained ischemia reperfusion (IR). Sirtinol (S) was administered before IR or IPC induction. *P < 0.05, **P < 0.01, ***P < 0.001 vs IR. Data are presented as mean ± SEM