Patients undergoing elective coronary artery bypass graft surgery (CABG) are treated with platelet inhibitors to reduce myocardial infarction and mortality.However, this can increase perioperative bleeding. A retrospective analysis of the data in our institution has revealed a significant increase in transfusion requirements after elective CABG since 5 years. The aim of our study is to observe if this increase in transfusion requirements is due to platelet inhibitors or due to other coagulation abnormalities resulting from other anticoagulants.

Inclusion Criteria:

• coronary artery bypass graft surgery with or without cardiopulmonary bypass

Exclusion Criteria:

• emergency; redo cardiac surgery; combined cardiac surgery; patients with renal insufficiency; patients with acquired coagulation abnormalities

coronary artery bypass graft