Initiation of Cardiopulmonary Bypass in a High-Risk Patient Under Regional Anesthesia: A Case Report.

A 34-year-old man presented with a large right ventricular (RV) intracardiac mass obstructing RV inflow and outflow as well as a concomitant pericardial effusion displaying physiological signs of tamponade. The patient underwent awake femorofemoral cannulation for cardiopulmonary bypass (CPB) under regional anesthesia with initiation of CPB before induction of general anesthesia. This unconventional approach avoided hemodynamic perturbations in this high-risk patient. Regional anesthesia provided predictable analgesia compared to local infiltration for improved toleration of cannulation.