A comparison of laboratory findings in coronary artery bypass surgery with and without cardiopulmonary bypass

Abstract

Background : Quests for doing coronary artery bypass surgery by a technique with lower complications is going on, for this aim many studies compared patients undergoing CABG with or without cardiopulmonary bypass. This study was carried out to compare laboratory findings after coronary artery bypass in these two groups of patients. Materials and Methods: In a retrospective study, 167 patients undergoing CABG with or without cardiopulmonary bypass were selected by systematic randomized sampling method from the list of the Jamaran Hospital (Tehran) patients and the blood levels of glucose, creatinine, potassium, sodium and incidence of acute kidney injury were compared. Results: Occurrence of acute kidney injury and glucose, creatinine and potassium levels was more in CPB group (P<0.05), but the sodium level was equal in both groups (P=0.84). Conclusion: OPCAB facilitate reduction in the incidence of acute kidney injury and control of the serum glucose and creatinine levels and complications related to these factors. It seems that OPCAB is an optimal operation technique for patients, but other factors should be considered too.