Background. The relationship between fasting blood glucose (FBG) and microvascular obstruction (MVO) after primary percutaneous\ncoronary intervention (PCI) remains unclear in nondiabetic patients with ST-segment elevation myocardial infarction\n(STEMI). This study aimed to determine the predictive value of FBG in MVO in nondiabetic STEMI patients. Methods. A total of\n108 nondiabetic STEMI patients undergoing primary PCI were enrolled in this study. The patients were classified into either the\nMVO group or non-MVO group based on cardiac magnetic resonance imaging (CMR). Results. FBG in the MVO group was\nhigher than in the non-MVO group. Univariate analysis showed that FBG, peak high-sensitive troponin T (TnT), pre-PCI\nthrombolysis in myocardial infarction (pre-PCI TIMI) flow, left ventricular ejection fraction (LVEF), infarction size, left\nventricular end-diastolic diameter (LVEDd), left ventricular end-diastolic volume (LVEDV), and global longitudinal strain (GLS)\nwere likely predictive factors of MVO. After adjustment for other parameters, FBG, peak TnT, LVEF, and LVEDV remained\nindependent predictors for MVO. Conclusion. FBG was independently associated with MVO in nondiabetic STEMI patients.
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