hibernating myocardium


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hi·ber·nat·ing my·o·car·di·um

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 myocardium.

hibernating myocardium

Cardiology Regional dysfunction of myocardial tissue due to prolonged local hypoperfusion, which is completely reversible upon restoration of adequate blood flow; hibernation occurs in Pts with CAD and impairment of left ventricular function at rest. Cf 'Stunned' myocardium, Thallium imaging.
References in periodicals archive ?
Comparison of 201Tl, 99mTc-tetrofosmin, and dobutamine magnetic resonance imaging for identifying hibernating myocardium.
Therefore, a combination of techniques to evaluate several of these parameters is generally used clinically in considering if repetitively stunned or hibernating myocardium exists as a cause of reversible left ventricular dysfunction, warranting coronary revascularization.
Tracer uptake should increase in the distribution of hibernating myocardium supplied by a patent coronary artery.
However, it is now known that functional recovery may not occur until as long as 6 months after revascularization in patients with hibernating myocardium (in contradistinction to those with only stunning).
For the differentiation of scarred versus hibernating myocardium, the patient groups studied in most reported series include those with chronic coronary artery disease.
An animal model of chronic coronary stenosis resulting in hibernating myocardium.