"Cardiothoracic anaesthesiology: In current cardiac surgery practice most operative cardiac procedures are performed on cardiopulmonary bypass (CPB). The processes of Initiating CPB, maintaining adequate perfusion and oxygenation during CPB, and terminating CPB involve intricate balances between the cardiac surgical, perfusion and anesthesia teams. Each of the stages presents the potential for catastrophe if not appropriately controlled, and clear communication is not part of routine practice. While some may view the anesthesist´s role as extraneous while on CPB, Steven Bartels and Kathirvel Subramaniam describe the anesthesit´s role and problems from the anestesist´s perspective and within their realm regarding patients on CPB - published as contribution to the new textbook ´Extracorporeal Circulation in Theory and Practice´, edited by Rudolf Tschaut, Molly Dreher, Ashley Walczak, Tami Rosenthal.