alexa Effect of cyclosporine on left ventricular remodeling after reperfused myocardial infarction.
Medicine

Medicine

Anatomy & Physiology: Current Research

Author(s): Mewton N, Croisille P, Gahide G, Rioufol G, Bonnefoy E,

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Abstract OBJECTIVES: This study examined the effect of a single dose of cyclosporine administered at the time of reperfusion on left ventricular (LV) remodeling and function by cardiac magnetic resonance 5 days and 6 months after myocardial infarction. BACKGROUND: In a human study, administration of cyclosporine at the time of acute reperfusion was associated with a smaller infarct size. METHODS: Twenty-eight patients of the original cyclosporine study had an acute (at 5 days) and a follow-up (at 6 months) cardiac magnetic resonance study to determine LV volumes, mass, ejection fraction, myocardial wall thickness in infarcted and remote noninfarcted myocardium, and infarct size. RESULTS: There was a persistent reduction in infarct size at 6 months in the cyclosporine group compared with the control group of patients (29 +/- 15 g vs. 38 +/- 14 g; p = 0.04). There was a significant reduction of LV end-systolic volume (and a trend for LV end-diastolic volume; p = 0.07) in the cyclosporine group compared with the control group, both at 5 days and 6 months after infarction. There was no significant difference between the 2 groups in either global LV mass or regional wall thickness of the remote noninfarcted myocardium at 5 days or 6 months. Attenuation of LV dilation and improvement of LV ejection fraction by cyclosporine at 6 months were correlated with infarct size reduction. CONCLUSIONS: Cyclosporine used at the moment of acute myocardial infarction reperfusion persistently reduces infarct size and does not have a detrimental effect on LV remodeling. These results are preliminary and must be supported by further studies. (Ciclosporin A and Acute Myocardial Infarction; NCT00403728). Copyright (c) 2010 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved. This article was published in J Am Coll Cardiol and referenced in Anatomy & Physiology: Current Research

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