АКТУАЛЬНЫЕ ПРОБЛЕМЫ ЗДРАВООХРАНЕНИЯ
The study was aimed at determining heart pathology features in young and middle-aged patients with metabolic syndrome (MS). Ln total, 88 people aged 35-55 years, with various MS components, were examined. Seventeen patients had three MS components (Group 1), 42-4 components (Group 2), and 29-5 components (Group 3). Left ventricular (LV) electrical myocardial instability and autonomous dysfunction were observed in 16 %, cardiac arrhythmias - in 28 %, and ischemia -in 22 %. Metabolic disturbance severity directly correlated with the number of MS components. LV structure changes manifested in myocardial hypertrophy and increased myocardial mass (65 %), diastolic dysfunction (45 %), and systolic dysfunction (10 %). Therefore, young and middle-aged patients with various MS components demonstrated LV electrical myocardial instability, heart rate variability disorders, ischemic, structural and functional LV myocardial disturbances. These changes were more manifested in patients with more MS components.
ORIGINAL ARTICLES
DIAGNOSTIC METHODS
GUIDELINES FOR THE PRACTITIONER
Effectiveness and safety of Class IС antiarrhythmic agent, propafenone (Propanorm, PRO. MED. CS Praha a.s., Czech Republic), was studied inpatients with persistent atrial fibrillation (PAF) after sinus rhythm conversion, during long-term ant-recurrent treatment. The study included 30 men and women; mean age 57, 97± 1, 2 years. PAF was caused by essential arterial hypertension, or its combination with stable coronary heart disease. To treat PAF paroxysms, propanorm was administered in the loading dose of 600 mg, continued by anti-recurrent therapy (450 mg/d for 12 months). All participants also received ACE inhibitor lisinopril (Dapril, PRO. MED. CS Praha a.s., Czech Republic). During anti-recurrent propanorm therapy (450 mg/d), no recurrent AF paroxysms were registered in 63, 3 % of the patients; paroxysm frequency reduced in 23, 3 %; paroxysms remained frequent in 13, 3 %. No adverse events were registered. Twelve-month propanorm and dapril treatment was associated with significant improvements in intracardiac hemodynamics and chronic heart failure functional class, as early as by Month 6.
The authors compared platelet hemostasis effects for two angiotensin receptor blockers, valsartan and eprosartan, in patients with arterial hypertension (AH) and metabolic syndrome (MS). For 16 weeks, 34 patients received valsartan, and 32 - eprosartan. Plasma and platelet lipid peroxidation products, blood and platelet antioxidant potential, platelet hemostasis parameters were investigated. Data were analyzed using Student t statistics. Valsartan therapy in AH and MS patients reduced peroxidation syndrome and optimized primary hemostasis. To reduce body weight in such patients, valsartan should be combined with non-pharmaceutical methods.

CLINICAL OBSERVATION
EPIDEMIOLOGY
REVIEW
The review is devoted to individual antiaggregant sensitivity issue. According to numerous studies' data, acetylsalicylic acid is ineffective in 5 % of the patients. It might be explained by target molecule (COG-1) gene polymorphism. This phenomenon has important clinical implications, as aspirin-resistant patients have significantly higher risk of thrombotic complications. Another widely used antiaggregant, clopidogrel, is ineffective in more than 15 % of the patients. Clopidogrel effectiveness depends on hepatic iso-enzyme CYP3A activity and ADP receptor gene variant. Many studies demonstrated that clopidogrel resistance worsens prognosis in coronary heart disease patients. Even new antiaggregants, Ilb-IIIa receptor inhibitors, are ineffective in 20 % of the cases, due to glycoprotein receptor gene polymorphism. Therefore, to identify optimal antiaggregant therapy regimen, individual approach is needed, including genetic and pharmacogenetic tests.

ISSN 2618-7620 (Online)