[Evaluation of hibernating myocardium in patients with heart insufficiency].
Myocardial dysfunction due to chronic hypoperfusion (so-called hibernating myocardium) is potentially reversible if the normal coronary flow is restored. Stress echocardiography (dobutamine, post-extrasystolic potentiation) may elicit contractile reserve of the hibernating myocardium and predict accurately its functional recovery after coronary revascularization. Thus, the identification of dysfunctioning but viable myocardium may be crucial to select patients with ischemic congestive heart failure who might benefit from coronary revascularization.
La Canna
G
G
Dipartimento di Scienze Cardiovascolari, Ospedale San Raffaele, IRCCS, Milano.
Agricola
E
E
Alfieri
O
O
D002316:Cardiotonic Agents; D003326:Coronary Circulation / Q000502:physiology; D004280:Dobutamine; D006333:Heart Failure / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D006334:Heart Function Tests; D006801:Humans; D009200:Myocardial Contraction; D009204:Myocardial Revascularization; D017682:Myocardial Stunning / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery; D011379:Prognosis; D014055:Tomography, Emission-Computed; D018608:Ultrasonography, Doppler; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery
D002316:Cardiotonic Agents; D004280:Dobutamine