CPB
Also written as: CPB — Cardiopulmonary Bypass
Cardiopulmonary bypass, the technique of temporarily taking over heart and lung function during cardiac surgery.
Full Definition
Cardiopulmonary bypass (CPB) is the cornerstone technology of cardiac surgery that temporarily assumes the function of the heart and lungs during operative procedures. The system consists of venous cannulas that drain blood from the patient, an oxygenator that adds oxygen and removes carbon dioxide, a pump that propels blood, and arterial return cannulas that deliver oxygenated blood back to the patient. This allows surgeons to operate on a still, bloodless heart. CPB management involves careful monitoring of flow rates, pressures, temperature, and blood gas parameters. Modern systems include safety features like level sensors, bubble detectors, and pressure monitors to prevent air embolism and ensure adequate perfusion.
Usage
Usage note: Write as CPB in all caps, not cbp or Cpb.
In Context
- "The patient was placed on CPB with bicaval cannulation." — Operative report
- "CPB time was 127 minutes with an aortic cross-clamp time of 89 minutes." — Perfusion record