Bypass, cardiopulmonary

Bypass, cardiopulmonary
Bypass of the heart and lungs as, for example, in open heart surgery. Blood returning to the heart is diverted through a heart-lung machine (a pump-oxygenator) before returning it to the arterial circulation. The machine does the work both of the heart (pump blood) and the lungs (supply red blood cells with oxygen).

Medical dictionary. 2011.

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