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HEART TRANSPLANTS

Transplantation of a weakened heart may be the best solution when medications do not adequately improve symptoms or when life expectancy is short. The original heart is replaced with a normally functioning heart donated by someone who has died from causes unrelated to heart disease. The ventricles and part of the atria, together with the heart valves and coronary arteries, are transplanted from the donor to the recipient. After the heart is removed from the donor, it is cooled and stored in special fluid. The time the heart is out of the body must be kept short, generally less than 4 hours.

Before the weakened original heart is removed, tubes must be positioned to take blood from the body and transport it to a cardiopulmonary bypass pump (heart-lung machine). The machine puts oxygen into the blood and then pumps the blood back into an artery (not shown). Because the machine functions as the heart and lungs, the weakened heart can be removed.

The donor heart is sewn in by the surgeon where the original heart was removed. Once the heartbeats are restarted with a shock, the new heart takes over circulating blood. The bypass pump can be stopped, and the tubes are removed.

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Cardio & Blood-holesterol




DISEASES OF THE BLOOD VESSELS & THE PERICARDIUM
PACEMAKERS AND DEFIBRILLATORS
ELECTROPHYSIOLOGY CATHETERS
THE CONDUCTION SYSTEM
RESTORING CORONARY BLOOD FLOW
CORONARY ARTERIES
THE VALVES
HEART TRANSPLANTS
THE MYOCARDIUM (HEART MUSCLE): THE STRUCTURE & THE CELLS OF HEART MUSCLE
THE HEART MUSCLE