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Reversible left ventricular dysfunction: does it affect clinical practice and does it matter?

S R Redwood1, R Ferrari, M S Marber

  • 1Department of Cardiology, St Thomas' Hospital, London, UK.

International Journal of Clinical Practice
|September 23, 1998
PubMed
Summary
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Identifying hibernating or stunned myocardium in patients with coronary artery disease is crucial. Revascularization can improve heart function and potentially prognosis in these individuals.

Area of Science:

  • Cardiology
  • Cardiac Imaging
  • Heart Failure

Background:

  • Coronary artery disease (CAD) frequently leads to impaired left ventricular (LV) function.
  • A significant portion of patients with LV dysfunction may have viable but dysfunctional myocardium (hibernating or stunned).
  • Identifying this reversible dysfunction is key for therapeutic decisions.

Purpose of the Study:

  • To highlight the importance of identifying hibernating or stunned myocardium in patients with CAD.
  • To discuss the potential benefits of revascularization in improving cardiac function and prognosis.
  • To review the diagnostic modalities for detecting reversible LV dysfunction.

Main Methods:

  • Review of existing evidence on myocardial hibernation/stunning in CAD.

Related Experiment Videos

  • Discussion of the impact of revascularization on LV function and patient outcomes.
  • Evaluation of diagnostic tools for assessing myocardial viability.

    • Main Results:

    • Revascularization in patients with hibernating or stunned myocardium is associated with improved LV function.
    • Evidence suggests that revascularization may improve the prognosis of these patients.
    • Specific imaging techniques are effective in identifying reversible LV dysfunction.

    Conclusions:

    • Identifying hibernating or stunned myocardium is clinically significant in patients with CAD and LV dysfunction.
    • Revascularization offers a therapeutic strategy to improve cardiac function and potentially survival.
    • Dobutamine echocardiography, thallium scanning, and PET scanning are valuable diagnostic tools.