myocardial hibernation

hibernation /hi·ber·na·tion/ (hi″ber-na´shun)

1. the dormant state in which certain animals pass the winter, marked by narcosis and by sharp reduction in body temperature and metabolism.

2. an analogous temporary reduction in function, such as of an organ.

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artificial hibernation  a state of reduced metabolism, muscle relaxation, and a twilight sleep resembling narcosis, produced by controlled inhibition of the sympathetic nervous system and causing attenuation of the homeostatic reactions of the organism.

myocardial hibernation  chronic but potentially reversible cardiac dysfunction caused by chronic myocardial ischemia, persisting at least until blood flow is restored.

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myocardial hibernation

Hibernation Cardiology Persistent left ventricular dysfunction when myocardial perfusion is chronically reduced but still enough to maintain tissue viability; MH is due to prolonged–months, yrs ischemia; ventricular dysfunction persists until blood flow is restored. Cf Myocardial stunning.