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Medical Definition of Intra-aortic balloon
1. An externally and intermittently inflatable balloon placed into the descending aorta and which, on activation during diastole, augments blood pressure and organ perfusion by its pulsatile thrust; then, on deflation, decreases the cardiac work with each systole-the so-called counterpulsation principle-by reducing cardiac afterload. (05 Mar 2000)
Lexicographical Neighbors of Intra-aortic Balloon
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