Abstract：ObjectiveTo evaluate the predictive index of myocardial reflow in patients with ST-segment elevation myocardial infarction(STEMI) undergoing percutaneous coronary intervention(PCI).MethodsOne hundred and seventy-six STEMI patients were enrolled who had undergone PCI treatment within 12 hours since STEMI attacked. According to postoperative TIMI blood flow classification, they were divided into group A (TIMI at level 3, perfusion group) and group B (TIMI at level 0-2, hypoperfusion group). The results were analyzed by the fall of ST-segment on ECG and the level of myocardial injury markers. ResultsFor patients in group B, ST-segment fell insufficiently one hour after PCI. The level of CK-MB in group B was significantly higher than that in group A (P<0.01) and the duration of peak value of CK-MB in group B was longer. The level of postoperative BNP in group B was significantly higher than that in group A (P<0.05). One week after PCI, the value of LVEF was significantly lower in group B than that in group A (P<0.05). ConclusionEarly ST-segment fall proves to be an effective predictor of myocardial reperfusion in STEMI patients undergoing primary PCI, which is consistent with the increase of the level of myocardial injury markers.
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2014, Vol. 23 
