scholarly journals THE ROLE OF VASODILATION FACTORS IN THE PATHOGENESIS OF CHRONIC HEART FAILURE OF ISCHEMIC ORIGIN IN ATRIAL FIBRILLATION

Author(s):  
V. I. Denesiuk ◽  
O. I. Afanasiuk ◽  
O. V. Denesiuk ◽  
N. O. Muzyka

The purpose of the study is to study the possible role of vasodilation factors in the pathogenesis of chronic heart failure (CHF) in persistent atrial fibrillation (AF) in patients with stable coronary heart disease. Materials and methods. A survey of 86 patients with stable coronary heart disease complicated by CHF II-III FC according to the NYHA classification. There was 1 group - 22 patients with CHF with reduced LV EF ≤ 40.0% and AF; I (comparative group) - 20 patients with CHF with reduced LV EF without AF; 2-nd group - 24 patients with preserved LV EF ≥ 40.1% and AF and II (comparative group) - 20 patients with CHF with preserved LV EF without AF. The content of endothelial nitric oxide synthase (eNOS), nitrites (NO2-) and nitrates (NO3-) was determined. All patients underwent electrocardiographic examination (ECG) for the initial screening of arrhythmias and conduction, diagnosis of focal changes in the ventricular myocardium. Structural and hemodynamic characteristics of the heart muscle were determined by echocardiography.Results. In the examined patients of the 1st group with CHF of ischemic origin and reduced LV EF ≤ 40.0% and AF in comparison with the 2nd group of patients with CHF with preserved LV EF and AF, a significant increase in the values of ICO, ICD, IMML, the size of LA and a decrease in LV EF (p <0.01), indicating the development of LVH (remodeling) and a decrease in isotropic heart function. When comparing the levels of vasodilation factors in patients with CHF with low LV EF and AF and data from the CHF comparison group without AF, a significant decrease in eNOS by 96.8% (almost twice) and a significant decrease in serum nitrite and nitrate levels (p < 0.01), indicating the development of endothelial dysfunction. Conclusions. In patients with CHF of ischemic origin in the development of persistent forms of AF pathogenetic role is played by a significant decrease in vasodilating factors (content of eNOS, nitrites and nitrates). At decrease in EF of LV ≤ 40,0% there is a significant decrease in vasodilating factors, as a result of disturbance of endothelial function that testifies to need of correction of the revealed changes directed on slowing down of disease progression.

2016 ◽  
Vol 94 (8) ◽  
pp. 591-595 ◽  
Author(s):  
V. I. Podzolkov ◽  
Aida I. Tarzimanova ◽  
R. G. Gataulin

The modern medical literature practically does not contain clinical publications reporting studies of factors responsible for progression of atrial fibrillation (AF) in patients with coronary heart disease (CHD). It accounts for the importance of investigations into evolution of the clinical course of AF in such patients.Aim. To elucidate evolution of the clinical course of AF in patients with CHD in a long-term prospective study.Materials and methods. The study included. 112 patient aged 57-74 (mean 67.44±3.3) years with CHD and paroxysmal form of AF carried outfrom 2011 to 2015. Evolution of the clinical course of AF was evaluated based on the number of arrhythmic attacks during the last 3 months. The appearance ofprolonged persistent AF episodes or permanent AF was regarded as progression of arrhythmia.Results. During the 4 year study, 64 (57,2%) patients (group 1) did not experiencea rise in the frequency and duration of AF attacks. Progression of arrhythmia was documented in 48 (42,8%) of the 112 (100%) patients (group 2). These patients more frequently had the history of myocardial infarction and chronic heart failure than patients of group 1. The latter had the mean values of left ventricular (LV) ejection fraction 61,23±6,24%, i.e. significantly higher than 48,47±8,4% in group 2.47 and 28 % of the patients in group 2and 1 respectively suffered mitral regurgitation (p<0,05). Patients of group 2 had significantly more akineticzones. Intake of nitroglycerin in group 1 resulted in positive dynamics of local LV contractility that did not change in patients of group 2. Conclusion. 42,8% of the patients with CHD and paroxysmal form of AF experienced progression of arrhythmia into a persistent or permanent form. Predictors of AF progression in patients with CHD are the history of myocardial infarction, chronic heart failure, mitral regurgitation, and irreversible changes in local myocardial LV contraction.


2021 ◽  
pp. 27-33
Author(s):  
D. Motruk

The article substantiates the role of potassium and magnesium deficiency in the pathogenesis of cardiovascular diseases and the effectiveness of the use of combined preparations of these electrolytes, which has been confirmed in numerous clinical studies. The combination of potassium and magnesium aspartate has proven itself best in the complex therapy of arrhythmias, coronary heart disease (in particular, post-myocardial infarction), chronic heart failure, and arterial hypertension.


2013 ◽  
Vol 61 (10) ◽  
pp. E735
Author(s):  
Savina Nodari ◽  
Marco Triggiani ◽  
Laura Lupi ◽  
Alessandra Manerba ◽  
Giuseppe Milesi ◽  
...  

2019 ◽  
Vol 26 (2) ◽  
Author(s):  
Lesia Serediuk ◽  
Ihor Vakalyuk ◽  
Halyna Kerniakevych

The objective is to investigate the influence of stress on the clinical and pathogenetic peculiarities of the course of stable coronary heart disease (SIHD) in conjunction with atrial fibrillation (AF). Materials and methods. The analysis of psychodiagnostic tests, labolatory and instrumental research methods in patients with and without AF has been performed. Patients were divided into three groups: group 1 – patients with stable ischemic heart disease (SIHD) with a constant form of AF (15 patients were examined), group 2 – patients with SIHD with paroxysmal form of AF (16 patients were examined), group 3 – patients with SIHD without AF (15 patients were examined). Results. According to the analysis of the data obtained, low level of stress was found in 6 (37.50%) patients with a permanent form of AF, whereas in patients without AF, it was observed in 1 (6.67%) person (p1<0.05) (p1 – the reliability of the differences in indicators relative to patients without AF). Moderate somatic disorder in women with paroxysmal AF was significantly higher than in the group of patients with a constant form of AF (p2<0.05) (p2 – the reliability of the differences in the indicators relative to patients with a constant form of AF). It is confirmed in patients with AF there are signs of the average stress level on the perceived stress level-10 (p2<0.05). Among the social factors that may have an impact on health are the influence of the media, the use of alcohol by relatives, the threat of unemployment for relatives and friends. These indicators were most often found in the group of patients with AF rather than without it (p2<0.05). Changes of ECG and echocardiographic parameters in all groups of patients were revealed. Conclusion. The association of stress with stable ischemic heart disease combined with atrial fibrillation has shown that stress disorders are associated with an increased risk of atrial fibrillation and may worsen their course and predict the risk of developing paroxysm. The dependence between the severity of clinical manifestations, psychodiagnostic tests, laboratory methods, ECG and echocardiographic parameters of the heart on the course of atrial fibrillation is proved.


Author(s):  
Andrea J. Glenn ◽  
Kenneth Lo ◽  
David J. A. Jenkins ◽  
Beatrice A. Boucher ◽  
Anthony J. Hanley ◽  
...  

Background The plant‐based Dietary Portfolio combines established cholesterol‐lowering foods (plant protein, nuts, viscous fiber, and phytosterols), plus monounsaturated fat, and has been shown to improve low‐density lipoprotein cholesterol and other cardiovascular disease (CVD) risk factors. No studies have evaluated the relation of the Dietary Portfolio with incident CVD events. Methods and Results We followed 123 330 postmenopausal women initially free of CVD in the Women's Health Initiative from 1993 through 2017. We used Cox proportional‐hazard models to estimate adjusted hazard ratios (HRs) and 95% CI of the association of adherence to a Portfolio Diet score with CVD outcomes. Primary outcomes were total CVD, coronary heart disease, and stroke. Secondary outcomes were heart failure and atrial fibrillation. Over a mean follow‐up of 15.3 years, 13 365 total CVD, 5640 coronary heart disease, 4440 strokes, 1907 heart failure, and 929 atrial fibrillation events occurred. After multiple adjustments, adherence to the Portfolio Diet score was associated with lower risk of total CVD (HR, 0.89; 95% CI, 0.83–0.94), coronary heart disease (HR, 0.86; 95% CI, 0.78–0.95), and heart failure (HR, 0.83; 95% CI, 0.71–0.99), comparing the highest to lowest quartile of adherence. There was no association with stroke (HR, 0.97; 95% CI, 0.87–1.08) or atrial fibrillation (HR, 1.10; 95% CI, 0.87–1.38). These results remained statistically significant after several sensitivity analyses. Conclusions In this prospective cohort of postmenopausal women in the United States, higher adherence to the Portfolio Diet was associated with a reduction in incident cardiovascular and coronary events, as well as heart failure. These findings warrant further investigation in other populations.


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