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Postoperative bleeding is the most common complication after pediatric cardiac surgery. Up to 5 % of cardiac surgery will require re-exploration for major blood loss in the first 24 h after surgery. Uncontrolled bleeding if not addressed early could lead to hypovolemic shock, multi-organ failure, and eventually death. Concealed bleeding in the chest could also cause cardiac tamponade if the chest and mediastinum are not adequately drained. Blood product use is not devoid of complication, and strategies should be designed to minimize transfusion as much as possible. There are several known medical and surgical risk factors for postoperative bleeding. During the preoperative visit, the anesthesiologist should investigate for “red flags” for postoperative bleeding and address them. Unnecessary medications that could affect coagulation should be discontinued. Medical conditions that affected the coagulation system should be stabilized. Cardiopulmonary bypass (CPB) strategies and surgical plan should also consider the effect on bleeding and coagulation. Finally it is very important to plan for adequate intravenous access and use of prophylactic agents and to secure availability of blood, coagulation factors, and components.

With the increasing survival over the last decade, the number of patients with congenital heart diease (CHD) has increased into adulthood. It becomes imperative for the cardiac anesthesiologist to be familiar with CHD for non-cardiac surgery, particularly in patients with a late presentation of CHD or repaired versus palliated CHD undergoing operative procedures. This chapter will be focused on pediatric cardiac surgery for CHD.