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Chronic Metformin Treatment is Associated with Reduced Myocardial Infarct Size in Diabetic Patients with ST-segment Elevation Myocardial Infarction

Lexis, C. P. H., Wieringa, W. G., Hiemstra, B., van Deursen, V. M., Lipsic, E., van der Harst, P., van Veldhuisen, D. J. & van der Horst, I. C. C., Apr-2014, In : Cardiovascular Drugs and Therapy. 28, 2, p. 163-171 9 p.

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  • Chronic Metformin Treatment is Associated with Reduced Myocardial Infarct Size

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DOI

Increased myocardial infarct (MI) size is associated with higher risk of developing left ventricular dysfunction, heart failure and mortality. Experimental studies have suggested that metformin treatment reduces MI size after induced ischaemia but human data is lacking. We aimed to investigate the effect of metformin on MI size in patients presenting with an acute MI.

All consecutive patients (n = 3,288) presenting to our hospital with ST-segment elevation myocardial infarction (STEMI) undergoing primary PCI between January 2004 and December 2010 were included in this retrospective analysis. Patients with diabetes were divided according to metformin versus non-metformin based pharmacotherapy. MI size was estimated using peak values of serum creatine kinase (CK), myocardial band of CK (CK-MB), and troponin-T.

We identified 677 (20.6 %) patients with diabetes, of whom 189 (27.9 %) were treated with metformin. Chronic metformin treatment was associated with lower peak levels of CK (1,101 vs. 1,422 U/L, P = 0.005), CK-MB (152 vs. 182 U/L, P = 0.018) and troponin-T (2.5 vs. 4.0 ng/L, P = 0.021) compared to non-metformin using diabetics. After adjustment for age, sex, TIMI flow post PCI, and previous MI, the use of metformin treatment remained an independent predictor of smaller MI size. Patient with diabetes treated with metformin had even smaller MI size than patients without diabetes.

Chronic metformin treatment is associated with reduced MI size compared to non-metformin based strategies in diabetic patients presenting with STEMI. Metformin might have additional beneficial effects beyond glucose lowering efficacy.

Original languageEnglish
Pages (from-to)163-171
Number of pages9
JournalCardiovascular Drugs and Therapy
Volume28
Issue number2
Publication statusPublished - Apr-2014

    Keywords

  • Myocardial infarction, Metabolism, Diabetes mellitus, Metformin, Myocardial infarct size, PERCUTANEOUS CORONARY INTERVENTION, CARDIOVASCULAR MAGNETIC-RESONANCE, IMPROVES CARDIAC-FUNCTION, LEFT-VENTRICULAR FUNCTION, HEART-FAILURE, PLASMINOGEN-ACTIVATOR, NONDIABETIC PATIENTS, PRIMARY ANGIOPLASTY, HOSPITAL DISCHARGE, REPERFUSION INJURY

ID: 14195136