ORIGINAL PAPERS
Purpose. To study the peculiarities of the clinical course of atrial fibrillation in patients with arterial hypertension and obesity.
Materials and methods. 127 patients were observed within the observational cohort studies. Of these, 64 patients with atrial fibrillation, arterial hypertension and obesity in the control group, while the experimental group consisted of 63 patients with atrial fibrillation, arterial hypertension and normal BMI (24.1±2.2) kg/m2. During our work we assessed clinical, anthropometric and laboratory indicators, as well as the results of instrumental examination: ElectroCG; Daily monitoring of ECG, EchoCG. Comparison of binary and categorical indicators was carried out upon an accurate bilateral F test. Statistical hypothesis testing was carried out at critical significance value p=0.05, i.e. the difference was considered statistically significant if p<0.05.
Results. Body mass index (BMI) in patients with atrial fibrillation, hypertension and obesity amounted to 35.2±4.6 kg/m2. The average age in all clinical groups was 60.5±9.2 years old, and patients with obesity were significantly younger (p<0.05) - 53.3±6.1 years old than patients with normal BMI - who were 59.8±7.4 years old. Patients with hypertension, atrial fibrillation and obesity often had a persistent form of AF 71%. General assessment of the lipid profile indicated that only patients with obesity and hypothyroidism showed a significantly high level of triglycerides. (p<0.001). There was an increase in NT-proBNP (p=0.001) and galectin-3 (p=0.005). There was a consistent increase of the end-diastolic dimension of the left ventricle in the left atrium; thickening of the left ventricular posterior and the interventricular septum in compared groups proved equivocal, while the LVMMI (p<0.05) was significantly lower in patients with obesity than in the experimental group.
Conclusion. The presence of obesity in patients with atrial fibrillation and arterial hypertension adversely affects certain biochemical and ultrasound parameters, however, many of the criteria characterizing cardiovascular risk and prognosis did not reveal significant differences, which requires further in-depth study of this problem and identification of a possible “obesity paradox” in the group of patients with atrial fibrillation, arterial hypertension and obesity.
The purpose of this work is to analyze the daily levels of blood pressure and heart rate variability in patients with signs of metabolic syndrome.
Materials and methods. In the period from 2013 to 2016, 364 patients of the age from 20 to 80 (200 men and 164 women) with newly diagnosed MS were prospectively examined. Daily ECG monitoring applying the Holter method was performed with the help of Cardiomax system (USA), in compliance with the standard method for diagnosing paroxysmal forms of arrhythmia and stress and painless forms of ischemia. V2, V5 and avF derivations were registered.
Results. The maximum daily average values of systolic and diastolic blood pressure recorded in patients of the 61 to 80 age group were the following: systolic BP - 156.9±3.5 mm Hg diastolic BP - 96.2±4.1 mm Hg The heart rate variability analysis showed that the value of circadian index in patients of the third age group was significantly lower (1.14±0.12) than in patients of the first and second groups, amounting to respectively 1.2±0.11 and 1.19±0.13. Besides, we noticed an increase of daytime and night Ps levels (up to 79.0±9.0 and 66.5±4.1 BPM) in patients of the second group compared to the first group, where the values of these indicators were respectively 75.4±8.4 and 60.6±6.2 BPM. Heart rate variability at different times of day depending on age indicate adverse changes in the autonomic regulation of cardiac activity alongside with increasing the age of patients with MS. With the increase of age in patients with Ms, the rate of detecting cardiovascular complications risk factors steadily grows.
Conclusion. It is necessary to conduct dynamic monitoring for patients with symptoms of metabolic syndrome in order to identify signs of cardiovascular system state disturbances, blood pressure and heart rate in particular.
REVIEW
A BRIEF SUMMARY
ANNIVERSARIES
ISSN 2305-0748 (Online)