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Clin Cardiol. 2013 Jun;36(6):305-11. doi: 10.1002/clc.22110. Epub 2013 Mar 14.

Cholesterol levels and the association of statins with in-hospital mortality of myocardial infarction patients insights from a Chilean registry of myocardial infarction.

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  • 1Cardiovascular Division, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.

Abstract

BACKGROUND:

Hypercholesterolemia is a strong risk factor for myocardial infarction (MI). There is scarce information regarding lipoprotein levels among patients with MI in Latin America as well as about the association of very early statin therapy during the course of acute MI.

HYPOTHESIS:

Very early statin prescription might be associated with a reduction on in-hospital mortality in MI patients with nearly normal lipid levels.

METHODS:

Prospective registry database analysis of MI patients admitted between 2001 and 2007 at a single university hospital from which demographics, treatments, clinical variables, and mortality were assessed. Patients naïve to statin therapy were divided in 2 groups, according to whether they received (group A) or did not receive (group B) statins during the first 24 hours after admission.

RESULTS:

In the 1465 patients analyzed, mean plasma levels of total cholesterol, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol (HDL-C) were 197, 117, and 44 mg/dL, respectively, and 41.8% had HDL-C ≤40 mg/dL. Among statin naïve patients (n = 1272), 67% were classified in group A and 33% in group B. Overall in-hospital mortality was 4.1%: 1.8% in group A and 8.5% in group B. In the multivariate analysis, including propensity score for statin prescription, the odds ratio for in-hospital mortality for group A was 0.971 (95% confidence interval: 0.944-0.999, P = 0.04).

CONCLUSIONS:

In the Chilean registry of MI patients, low HDL-C was the main lipid disturbance. Very early statin use after MI appears to be associated with a borderline significant and independent reduction of in-hospital mortality.

© 2013 Wiley Periodicals, Inc.

PMID:
23494544
[PubMed - indexed for MEDLINE]
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