Assessment of residual tissue viability by exercise testing in recent myocardial infarction: Comparison of the electrocardiogram and myocardial perfusion scintigraphy
- Margonato, Alberto
- Ballarotto, Carlo
- Bonetti, Fabrizio
- Cappelletti, Alberto
- Sciammarella, Maria
- Cianflone, Domenico
- Chierchia, Sergio Lorenzo
DOIAbstract
AbstractThe assessment of residual myocardial viability in infarcted areas is relevant for subsequent management and prognosis but requires expensive technology. To evaluate the possibility that simple, easily obtainable clinical markers may detect the presence of within-infarct viable tissue, the significance of exercise-induced ST elevation occurring in leads exploring the area of a recent Q wave myocardial infarction was assessed.Twenty-five patients with recent (<6 months) myocardial infarction were studied. All had angiographically documented coronary artery disease, diagnostic Q waves (n = 24) or negative T waves (n = 25) on the rest 12-lead electrocardiogram and exhibited during exercise a ≥1.5 mm ST segment elevation (n = 17) or iso...
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