cardiopulmonary bypass

bypass /by·pass/ (bi´pas) an auxiliary flow; a shunt; a surgically created pathway circumventing the normal anatomical pathway, such as in an artery or the intestine.

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cardiopulmonary bypass  diversion of the flow of blood to the heart directly to the aorta, via a pump oxygenator, avoiding both the heart and the lungs; a form of extracorporeal circulation used in heart surgery.

coronary artery bypass  a section of vein or other conduit grafted between the aorta and a coronary artery distal to an obstructive lesion in the latter.

gastric bypass  gastrojejunostomy in which the stomach is transected high on the body, the proximal remnant being joined to a loop of jejunum in end-to-side anastomosis.

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cardiopulmonary bypass

n.

A procedure to circulate and oxygenate the blood during heart surgery involving the diversion of blood from the heart and lungs through a heart-lung machine and the return of oxygenated blood to the aorta.

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Cardiopulmonary bypass

Mechanically circulating the blood with a heart/lung machine that bypasses the heart and lungs.

Mentioned in: Heart Transplantation

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cardiopulmonary bypass,

a procedure used in heart surgery in which the blood is diverted from the right atrium or vena cava by means of a pump oxygenator and returned directly to the aorta.

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bypass

an auxiliary flow; a shunt; a surgically created pathway circumventing the normal anatomical pathway, as an intestinal bypass.

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cardiopulmonary bypass

diversion of the flow of blood from the entrance to the right atrium directly to the aorta, usually via a pump oxygenator, avoiding both the heart and the lungs; a form of extracorporeal circulation used mainly in experimental animals in the investigation of cardiac prosthetic devices. Called also CPB.

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cardiopulmonary bypass

Cardiovascular surgery A procedure in which the flow of blood to the heart is diverted to a heart-lung machine–a pump-oxygenator before returning it to the arterial circulation, used in
modern open heart surgery; aortic cannulation is used for arterial inflow; a single right atrial cannula is used for venous return to the pump; after the ascending aorta is clamped, cold potassium cardioplegia solution is infused into the aortic root, which arrests and protects the heart during the heart surgery