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Year : 2020  |  Volume : 6  |  Issue : 2  |  Page : 148-152

Does angiographic profile and outcome of diabetic patients among Asian Indians correlate with presenting glycated hemoglobin during acute ST-elevation myocardial infarction? DECIPHER study

1 Department of Cardiology, U. N. Mehta Institute of Cardiology and Research Centre, Civil Hospital Campus, Ahmedabad, Gujarat, India
2 Department of Research, U. N. Mehta Institute of Cardiology and Research Centre, Civil Hospital Campus, Ahmedabad, Gujarat, India

Correspondence Address:
Dr. Kamal Sharma
Department of Cardiology, U. N. Mehta Institute of Cardiology and Research Centre, Civil Hospital Campus, Asarwa, Ahmedabad - 380 016, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jpcs.jpcs_9_20

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Background: The risk of myocardial infarction (MI) is high in patients with diabetes mellitus. The study aimed to evaluate the risk factors focusing on presenting glycated hemoglobin (HBA1C) and the angiographic profile of diabetic patients with ST elevation myocardial infarction (STEMI) and in-hospital 3-point major adverse cardiac event (MACE). Materials and Methods: Two hundred consecutive diabetic patients presenting with STEMI were enrolled for prospective observational study. Each patient underwent investigations including HbA1C, electrocardiogram, echocardiography, and coronary angiography with SYNTAX 1 SCORE (SS1) with intent to early revascularization. Continuous variables were compared using the unpaired Student's t-test. A receiver operator characteristic analysis was performed to determine a cutoff point for HbA1c value for predicting disease severity and prognosticate in-hospital 3-point MACE using multivariate analysis after normalizing the confounders. Results: Of the total 200 patients, 70 (35%) had single-vessel disease, 58 (29%) had the double-vessel disease, while 72 (36%) had triple-vessel disease. Among these patients, left main coronary artery was involved in 22 (11%) of patients. Hypertension (73.8% vs. 60%), obesity (35.4% vs. 18.4%), and left ventricular (LV) dysfunction (13.7% vs. 2.9%) were risk factors associated with disease severity with an odds ratio of 1.88 (95% confidence interval [CI]: 1.01–3.49; P = 0.04), 2.4 (95% CI: 1.19–4.84; P = 0.01), and 5.46 (95% CI: 1.23–24.29; P = 0.03), respectively. Receiver operating characteristic analysis of HbA1c with respect to 3P-MACE of in-hospital death, recurrent MI, and CV stroke revealed HBA1C <8.9 g% as cutoff for lower MACE as compared to those with >8.9 g% (95% CI: 0.66–0.79; P = 0.0004) with 65% sensitivity and 76.7% specificity. HbA1c >7.9 g% were more likely to have multivessel disease and SS1 >33. Patients with surgical site infection >33 were more likely to be hypertensive and had severe LV dysfunction and higher 3P MACE. Conclusion: Diabetic Asian Indian patients with STEMI with HbA1c >7.9 g% were more likely to have a multivessel disease and SYNTAX 1 Score >33. There was a significant association between presenting HbA1c >7.9 g% and disease severity and higher 3-P MACE among presenting with HbA1c >8.9 g%.

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