scholarly journals ENDOTHELIAL ADHESIVE FUNCTION IN PATIENTS WITH ISCHEMIC HEART DISEASE COMPLICATED BY CHRONIC HEART FAILURE AND ATRIAL FIBRILLATION

2013 ◽  
Vol 9 (1) ◽  
pp. 35-39 ◽  
Author(s):  
A. N. Zakirova ◽  
E. R. Abdukova ◽  
N. E. Zakirova

The combination of atrial fibrillation and/or flutter and chronic heart failure is a frequent problem for many patients. Radiofrequency ablation is effective in the strategy for controlling the rhythm of patients with atrial fibrillation and/or flutter, but always requires concomitant therapeutic support. The study involved 70 patients with atrial fibrillation and/or flutter after radiofrequency ablation which were divided into groups according to the functional class of chronic heart failure. Gender and age of patients; types of ischemic heart disease; stages of chronic heart failure; degrees of arterial hypertension; the form of atrial fibrillation and flutter; class EHRA; the presence of diabetes mellitus type 1 or 2 we evaluated. The female sex prevailed in the group of II functional class of chronic heart failure than in I functional class or III functional class. Ischemic heart disease, first of all angina of effort, in patients with III functional class of chronic heart failure was significantly more frequent. In group of III functional class of chronic heart failure there were significantly more patients with 3 degrees of arterial hypertension. Male patients, regardless of functional class of chronic heart failure, more often than females are conducted invasive methods of treatment for atrial fibrillation/flutter. With increasing of functional class of angina the functional class of chronic heart failure is increasing. Among patients II and III functional class of chronic heart failure prevails the arterial hypertension III degree, which may be a predictor of adverse prognosis.


Author(s):  
M. V. Golubenko ◽  
T. V. Shumakova ◽  
O. A. Makeeva ◽  
N. V. Tarasenko ◽  
R. R. Salakhov ◽  
...  

The pathogenesis of atherosclerosis and ischemic heart disease is associated with oxidative stress and mitochondrial dysfunction. Mitochondrial DNA encodes subunits of mitochondrial respiratory chain and is highly polymorphic in human populations. Mitochondrial DNA can be considered a candidate genetic locus for predisposition to cardiovascular diseases.Aim. To analyze the associations of the mitochondrial genome polymorphism and chronic heart failure in ischemic heart disease.Material and Methods. The study included two groups of individuals: patients with a combination of ischemic heart disease and chronic heart failure (n = 175) and a population sample of residents of Tomsk (n = 424). Percentages of patients with chronic heart failure of NYHA classes II, III, and IV were 37%, 50%, and 13%, respectively. All patients underwent echocardiographic examination; body mass index and the lipid fractions in blood serum were determined. The average was 55.4 years in patients and 47.6 years in the population sample. Polymorphism of mtDNA was studied by sequencing the hypervariable segment of D-loop of mtDNA and subsequent classification of mtDNA haplotypes into the known haplogroups. The mtDNA haplogroup frequencies were compared between the samples using the Chi-square test. The associations of genotype with quantitative trait variability were analyzed by variance analysis.Results. Male patients showed a higher frequency of haplogroup H compared to the population (45.86% in patients and 35.4% in population) and a higher total frequency of haplogroup H subgroups except the most frequent subgroup H1 (36.94% and 25.22%, respectively). The values of significance level (p-value) and odds ratio (OR) were determined as follows: p = 0.04; odds ratio OR = 1.55 (95% confidence interval (CI) 1.02–2.34) for haplogroup H as a whole; p = 0.02; OR = 1.74 (95% CI 1.12–2.70) for haplogroup H without subgroup H1. Analysis of quantitative traits revealed the associations of the same genetic marker (mtDNA haplogroup H) with the levels of high-density lipoproteins (p = 0.03) and triglycerides (p = 0.02) in blood serum of men in the population sample.Conclusion. The obtained results suggested that the most frequent European mtDNA haplogroup H may be a risk factor for the complications of ischemic heart disease in men.


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