The heart consumes more energy than any other organ. It cycles about 6 kg of ATP every day, which is 20–30 times its own weight. To acquire the energy necessary to carry out cardiac functions, the heart converts chemical energy stored in fatty acids and glucose into mechanical energy, in the form of actinmyosin myofibrillar interactions. The main contributors to ATP synthesis are fatty acids (70%), through β-oxidation, and glucose (30–40%), through aerobic glycolysis.
KeywordsCoronary Flow Fractional Flow Reserve Coronary Flow Reserve Coronary Blood Flow Coronary Stenosis
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