Cardiac surgical patients are usually sick patients and have often been identified with some disease for quite some time. There are some who come emergently with minimal previous investigations or known medical status. Virtually any organ system can be involved and since cardiopulmonary bypass affects virtually evry organ system, this can have an effect on intra and post operative outcomes. Common peroperative complications which can influence the psotoperative period could be
Endocrinological complications
Renal complications
Infective complications
Gastrointestinal complications
Immunological complications
Musculo -skeletal system related complications