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The viable myocardium: epidemiology, detection, and clinical implications

T H Marwick1

  • 1Department of Cardiology, Cleveland Clinic Foundation, OH 44195, USA.

Lancet (London, England)
|March 31, 1998
PubMed

Insights

Survivors of myocardial infarction (MI) may develop heart failure, but viable heart muscle can recover. Reappraising MI treatments to identify and salvage this tissue can improve patient outcomes and prognosis.

Area of Science:

  • Cardiology
  • Regenerative Medicine

Background:

  • Myocardial infarction (MI) therapies reduce mortality but survivors often develop heart failure.
  • Current medical treatments for heart failure post-MI have limited efficacy.
  • Cardiac transplantation is a limited option for end-stage heart failure.

Purpose of the Study:

  • To reappraise current treatment approaches for myocardial infarction.
  • To examine the pathogenesis of viable myocardium recovery post-MI.
  • To review techniques for identifying salvageable heart tissue and discuss clinical implications.

Main Methods:

  • Literature review on myocardial infarction pathogenesis and recovery.
  • Analysis of techniques for identifying viable myocardium.
  • Evaluation of clinical implications of salvageable tissue.

Main Results:

  • Approximately 40% of myocardial infarction-affected segments may recover spontaneously or after revascularization.
  • Viable myocardium persistence challenges previous understanding of ischemic injury.
  • Myocardial revascularization can improve symptoms, exercise capacity, and prognosis in selected patients.

Conclusions:

  • Identifying and salvaging viable myocardium post-MI is crucial.
  • Revascularization strategies should be considered for patients with viable tissue.
  • Further research into salvageable myocardium can optimize heart failure management.

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