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Objective To determine the best test(s) for predicting functional recovery of hibernating myocardium after reperfusion.

Methods A prospective study to compare echocardiographic left ventricular diastolic wall thickness (≥5mm), low-dose dobutamine echocardiography and rest-redistribution thallium-201 scintigraphy, alone and in combination, for predicting recovery of left ventricular akinesis after surgical revascularization.

Results Twenty-eight consecutive patients aged 58±9 years were studied. Of the 448 left ventricular segments, 263 were akinetic at rest; 230/263 (87%) had wall thickness ≥5mm, 135 (51%) had a positive response and 175 (66·5%) were graded viable on thallium. Of akinetic segments 61% improved after surgery. Left ventricular score decreased from 2·3±0·4 to 1·8±0·4 (P<0·01) and ejection fraction increased from 27±10 to 37±14% (P<0·01). For predicting results …