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Clinical syndromes of stunned or hibernating myocardium

David M Shavelle, MD
Section Editors
Bernard J Gersh, MB, ChB, DPhil, FRCP, MACC
Jeroen J Bax, MD, PhD
Deputy Editor
Gordon M Saperia, MD, FACC


Left ventricular (LV) dysfunction, which may be an important consequence of coronary artery disease, can result from acute myocardial ischemia or myocardial infarction [1,2]. In addition, two other clinical syndromes can be associated with LV dysfunction:

Transient postischemic dysfunction, called "stunned" myocardium

Chronic, but potentially reversible, ischemic dysfunction, called "hibernating" myocardium

In patients with the latter disorder, LV function may improve markedly and mortality may be reduced following successful coronary revascularization. The time course of recovery is variable.

The clinical syndromes associated with stunned and hibernating myocardium and the methods used to detect stunned myocardium will be reviewed here. The pathophysiology of these disorders and the diagnosis and treatment of hibernating myocardium are discussed separately. (See "Pathophysiology of stunned or hibernating myocardium" and "Evaluation of hibernating myocardium" and "Diagnosis and management of ischemic cardiomyopathy".)


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Literature review current through: Sep 2016. | This topic last updated: Feb 22, 2016.
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