Naser Safaei1, Hossein Babaei2, Rasoul Azarfarin3, Ahmad-Reza Jodati1, Alireza Yaghoubi3, Mohammad-Ali Sheikhalizadeh1
1 Cardiovascular Research Center, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
2 Drug Applied Research Center, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
3 Echocardiography Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
Background: This study aimed to test the beneficial effect of grape seed extract (GSE) (Vitis vinifera) and Vitamin C in oxidative stress and reperfusion injury induced by cardiopulmonary bypass (CPB) in coronary artery bypass surgery. Patients and Methods: In this randomized trial, 87 patients undergoing elective and isolated coronary bypass surgery included. The patients were randomly assigned into three groups (n = 29 each): (1) Control group with no treatment, (2) GSE group who received the extract 24 h before operation, 100 mg every 6 h, orally, (3) Vitamin C group who received 25 mg/kg Vitamin C through CPB during surgery. Blood samples were taken from coronary sinus at (T1) just before aortic cross clamp; (T2) just before starting controlled aortic root reperfusion; and (T3) 10 min after root reperfusion. Some clinical parameters and biochemical markers were compared among the groups. Results: There were significant differences in tracheal intubation times, sinus rhythm return, and left ventricular function between treatment groups compared with control (P < 0.05). Total antioxidant capacity was higher (P < 0.05) in both grape seed and Vitamin C groups at T2 and T3 times. In reperfusion period, malondialdehyde level was increased in control group; however, it was significantly lower for the grape seed group (P = 0.04). The differences in the mean levels of superoxide dismutase and glutathione peroxidase among the three groups were not significant (P > 0.05 in all cases). Conclusions: In our patients, GSE and Vitamin C had antioxidative effects and reduced deleterious effects of CPB during coronary artery bypass grafting surgery.
Drug Applied Research Center, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz
Source of Support: None, Conflict of Interest: None
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