Eco no infarto sem supra ST, só mesmo com Strain

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AQUI
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Strain Echocardiography and Wall Motion Score Index Predicts Final Infarct Size in Patients With Non–ST-Segment–Elevation Myocardial Infarction
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Methods and Results— Sixty-one patients with non–ST-segment–elevation myocardial infarction were examined by echocardiography immediately before revascularization, 2.1±0.6 days after hospitalization. LV systolic function was assessed by ejection fraction, wall motion score index, and circumferential, longitudinal, and radial strain in a 16-segment LV model. Global strain represents average segmental strain values. Infarct size was assessed after 9±3 months by late-enhancement MRI, as a percentage of total LV myocardial volume. A good correlation was found between infarct size and wall motion score index (r=0.74, P<0.001) and global longitudinal strain (r=0.68, P<0.001). Global longitudinal strain >–13.8% and wall motion score index >1.30 accurately identified patients with substantial infarction (12% of myocardium, n=13; area under the receiver operator curve, 0.95 and 0.92, respectively).

Conclusions— Echocardiographic parameters of LV systolic function correlate to infarct size in patients with non–ST-segment–elevation myocardial infarction. Global longitudinal strain and wall motion score index are both excellent parameters to identify patients with substantial myocardial infarction, who may benefit from urgent reperfusion therapy.
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No infarto sem supra, o Eco convencional é limitado em sua capacidade de definir área de infarto.
Com o uso do Strain, ganha-se um marcador forte do tamanho da lesão.
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O Strain veio para ficar, antes até do 3D.
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