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

Chris P. H. Lexis*, Wouter G. Wieringa, Bart Hiemstra, Vincent M. van Deursen, Erik Lipsic, Pim van der Harst, Dirk J. van Veldhuisen, Iwan C. C. van der Horst

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

50 Citaten (Scopus)


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.

Originele taal-2English
Pagina's (van-tot)163-171
Aantal pagina's9
TijdschriftCardiovascular Drugs and Therapy
Nummer van het tijdschrift2
StatusPublished - apr.-2014

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