Right heart bypass without oxygenator for redo tricuspid valve replacement: a case report.

Tricuspid valve replacement (TVR) is traditionally performed under cardiopulmonary bypass (CPB), which facilitates cardiac arrest and temporarily assumes the heart's function, providing a motionless and bloodless operative field. However, the use of CPB is associated with significant systemic complications, including systemic inflammatory response syndrome, acute kidney injury, acute lung injury, and coagulation abnormalities. To mitigate these risks, a redo TVR was undertaken in a 29-year-old female patient using a right heart bypass strategy, maintaining a beating heart and continuous systemic perfusion throughout the procedure. The surgery was completed successfully, and the patient was discharged without postoperative complications.