Cardiopulmonary bypass
| Cardiopulmonary bypass | |
|---|---|
| A heart–lung machine (upper right) in a coronary artery bypass surgery | |
| ICD-10-PCS | 12 | 
| ICD-9-CM | 39.61 | 
| MeSH | D002315 | 
| OPS-301 code | 14 | 
| Other codes | 22570829 | 
Cardiopulmonary bypass (CPB) or heart-lung machine, also called the pump or CPB pump, is a machine that temporarily takes over the function of the heart and lungs during open-heart surgery by maintaining the circulation of blood and oxygen throughout the body. As such it is an extracorporeal device.
CPB is operated by a perfusionist. The machine mechanically circulates and oxygenates blood throughout the patient's body while bypassing the heart and lungs allowing the surgeon to work in a bloodless surgical field.