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Hibernating myocardium: a historical perspective.

J F Tubau1, S H Rahimtoola

  • 1Department of Medicine, University of Southern California, Los Angeles.

Cardiovascular Drugs and Therapy
|June 1, 1992
PubMed
Summary
This summary is machine-generated.

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Hibernating myocardium is a heart condition with persistent dysfunction due to reduced blood flow. This dysfunction is an adaptive mechanism that improves when blood flow is restored, preventing permanent heart damage.

Area of Science:

  • Cardiology
  • Physiology

Background:

  • Hibernating myocardium is characterized by persistent left ventricular dysfunction at rest.
  • This dysfunction is linked to severely reduced coronary blood flow.

Purpose of the Study:

  • To review the evolution of the concept of hibernating myocardium.
  • To examine proposed underlying mechanisms of myocardial hibernation.

Main Methods:

  • Literature review of clinical observations and proposed mechanisms.
  • Analysis of studies on myocardial and left ventricular function.

Main Results:

  • Myocardial dysfunction in hibernating myocardium is likely an adaptive mechanism.
  • Dysfunction improves upon restoration of coronary blood flow, preventing irreversible damage.

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Conclusions:

  • Hibernating myocardium represents a state of preserved myocardial viability despite chronic dysfunction.
  • Understanding hibernation is crucial for managing ischemic heart disease.