The comparison of myocardial damage in coronary artery bypass operation with beating heart technique or cardiopulmonary bypass technique

The increasing of industry and changing of human feeding behavior augment coronary artery diseases , so this increment need to increase the necessity of coronary revascularizations .Beating heart technique is safe and alternative method , that doesn?t contain risk and complication of cardiopulmonary bypass technique.For the comparison of myocardial damage with cardiopulmonary bypass or beating heart , one of the all methods is following the myocardial enzymes ( CPK , CPK-MB , Troponin I ) .For this purpose in our hospital we followed 22 patients with cardiopulmonary bypass technique and 22 patients with beating heart technique , we compared measurement of enzymes of patients at postoperative 6. and 12 . hours . The patients were selected seldom without distinction about age and gender.When we look the risk factors ( old age , chronic renal failure , DM , HT , female gender ) , risk factors were seen high in cardiopulmonary bypass technique .The average of , CPK ?MB at postoperative 6 .and 12. hours were found as high in cardiopulmonary bypass technique than beating heart as statistical meaningful .(p=0.0001 , p=0.01)The average of Troponin I at postoperative 6. and 12. hours were found as high in cardiopulmonary bypass technique than beating heart as statistical meaningful (p=0,006, p=0,042).According to the enzymes results ; in beating heart, all of enzymes were found lower than in cardiopulmonary bypass at all times ( 6.hours-12 hours)So we can accept ;the beating heart cause lower myocardial damage than cardiopulmonary bypass.