Clinical and Genetic Features of the Development of Complications of Acute Myocardial Infarction

Abstract

The purpose of this study was to investigate the angiotensin-converting enzyme (ACE) gene associations with the clinical picture of the most frequent complications of acute myocardial infarction (MI). The study included 190 patients who underwent one or more MI included in the WHO Register of Acute Myocardial Infarction. All the patients underwent genetic research for the identification of allelic variants of the ACE gene (polymorphism I/D). It was found that the DD genotype of the ACE gene is associated with a more frequent occurrence of acute left ventricular aneurysm (ALVA) (OR = 2.46, 95% CI 1.08–5.63, p = 0.037, χ² = 4.73). In the group of patients with acute left ventricular failure (ALVF), the picture looked different: the genotype II of the ACE gene was more frequent (OR = 2.86, 95% CI 1.35–6.08, p = 0.007, χ² = 7.81). Patients in the group without ALVF were carriers of the allele D more often (77.1%) (p = 0.007, χ² = 7.81). Discovered genetic associations favor the consideration of the ACE gene as a genetic predictor of the development of ALVA in the acute period of MI. Further study of this gene in combination with other genetic markers of MI, as well as analysis of distribution of the genotypes of the ACE gene among deceased patients who underwent MI, will allow us to understand the genetic mechanisms of the development of other complications of MI, in particular, ALVF. All this will ensure the development of new highly effective personalized approaches to the prevention and treatment of complications of acute MI and the improvement of immediate and remote prognosis of patients.