Cardiopulmonary bypass

Cardiopulmonary bypass
A heart–lung machine (upper right) in a coronary artery bypass surgery
ICD-10-PCS12
ICD-9-CM39.61
MeSHD002315
OPS-301 code14
Other codes22570829

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.

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