myocardium, pl. myocardia (mI-o-kar´de-um, -kar´de-a) [NA]
The middle layer of the heart, consisting of cardiac muscle. [myo- + G. kardia, heart]
hibernating m. ventricular dysfunction following months or years of ischemia that is reversible when blood flow is restored. Must be carefully distinguished from dysfunction due to necrotic or scarred m.
stunned m. impaired myocardial contractile performance following a brief period of ischemia and ultimately reversible.
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