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Association between low serum magnesium level and major adverse cardiac events in patients treated with drug-eluting stents for acute myocardial infarction

Authors: An G, Du Z, Meng X, Guo T, Shang R, Li J, An F, Li W, Zhang C

Citation: PLoS ONE 2014;9(6):e98971
PMID : 24901943, Journal: PLoS ONE, 9, 6
Date created: 2014-06-06

Abstract

OBJECTIVES: We investigated the association of serum magnesium (Mg) levels and major adverse cardiac events (MACEs) after drug-eluting stent (DES) implantation.

BACKGROUND: Mg depletion plays a key role in the pathphysiologic features of diabetes mellitus, hypertension, thrombosis, arrhythmias and coronary artery disease. Whether the depletion is related to the long-term prognosis of DES implantation is not known.

METHODS: From 2008 to 2011, we enrolled 414 consecutive patients

RESULTS: For patients with unstable angina, no significant association between serum Mg level and MACEs was found in the multivariate model. For patients with myocardial infarction, after adjusting for age, positive family history, smoking status, hypertension, hypercholesterolemia, and diabetes at baseline, the risk was 8.11-fold higher for patients with quartile 1 than 4 Mg level (95% confidence interval 1.7-38.75; P<0.01). In addition, when tested as a continuous variable, serum magnesium was a significant predictor for MACEs of acute myocardial infarction (HR [per 0.1 mM increase], 0.35 [95% CI, 0.19-0.63], p< 0.01), after adjustment for other confounders.

CONCLUSIONS: Low serum level of Mg may be an important predictor of MACEs with DES implantation for acute myocardial infarction. Further research into the effectiveness of Mg supplementation for these patients is warranted.

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Filed Under: Journal Publications Tagged With: arrhythmias, coronary artery disease, Diabetes, hypertension, Magnesium, thrombosis

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