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Revista argentina de cardiología

On-line version ISSN 1850-3748

Abstract

ZAPATA, GERARDO; HOMINAL, MIGUEL  and  LOPEZ, JORGE. Variables Associated with Improved Left Ventricular Function After Myocardial Revascularization. Rev. argent. cardiol. [online]. 2016, vol.84, n.1, pp.1-15. ISSN 1850-3748.

Background: Myocardial revascularization is the treatment of choice in patients with systolic dysfunction due to ischemia. Left ventricular ejection fraction (LVEF) constitutes a prognostic factor in these patients; thus it may be interesting to identify the variables related with left ventricular function improvement. Objective: The aim of this study is to determine the variables associated with improvement of LVEF in patients with coronary artery disease and systolic dysfunction undergoing myocardial revascularization. Methods: We included patients with LVEF <50% undergoing surgical myocardial revascularization with echocardiographic monitoring >6 months. The variables associated with LVEF improvement >5% were analyzed. Results: The cohort was made up of 95 patients; 91.6% were men, mean age was 63 years, 40% were diabetics, 27% had previous myocardial infarction and LVEF was 36%±6%. Viability was assessed in 78%. During the immediate postoperative period, 12.6% presented ischemia and 28% presented low cardiac output. Multivariate analysis revealed that myocardial viability and the lack of perioperative ischemia were independent predictors of improved LVEF. Conclusions: Myocardial viability and absence of perioperative ischemia were associated with improved LVEF during long-term follow-up.

Keywords : Myocardial Revascularization -Ventricular Dysfunction, Left - Myocardial Ischemia.

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