ANTONIA REEVE / SCIENCE PHOTO LIBRARY ANTONIA REEVE / SCIENCE PHOTO LIBRARY
Intra-aortic balloon pump machine. Perfusionist using an intra-aortic balloon pump (IABP) machine during heart surgery. This machine reduces the strain on a pumping heart by operating a balloon pump that has been placed in the patient's aorta (main body artery). There, it reacts to the pumping of the heart. Just before a contraction of the heart, the balloon deflates and so reduces the pressure in the aorta that the heart has to pump against. The balloon inflates after the heart pumps oxygen-rich blood into the aorta. This inflation returns oxygen-rich blood towards the heart. The balloon pump may also be used before and after heart surgery.
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