Cardiopulmonary events under anesthesia. The patient went into cardiopulmonary arrest 90 min after induction of general anesthesia. The surgical procedure was initiated while cardiac compressions were being performed and cardiopulmonary bypass was established, with recovery of the cardiac rhythm at 25 min after cardiopulmonary arrest. The horizontal axis of the graph represents the time (min) after induction of anesthesia, with the following variables plotted on the vertical axis: arterial blood pressure (ABP: red band graph [mmHg]), heart rate (HR: green line [bpm]), and end-tidal carbon dioxide concentration (EtCO2: gray line [mmHg]). Multiplication sign: induction of anesthesia; T: tracheal intubation; TEE: insertion of transesophageal echocardiography probe; CV: insertion of central venous catheter; bullseye symbol: start of the surgery; EC: establishment of extracorporeal circulation; PEA: pulseless electrical activity; VF: ventricular fibrillation.