Статеві та клініко-інструментальні паралелі рівнів ліпопротеїн(а) в пацієнтів з дуже високим серцево-судинним ризиком

In recent years it has been established that elevated levels of Lp(a) are an independent genetic risk factor for the development of atherosclerotic cardiovascular diseases and aortic stenosis, however, issues of gender and age characteristics remain controversial.The aim of study was to analyze the gender characteristics of the relationship between Lp(a) levels and atherogenic changes in the lipid spectrum of the blood, clinical and instrumental characteristics, taking into account damage to the aortic valve and the results of coronary angiography in patients with stable coronary heart disease. Materials and methods. The 106 patients with chronic coronary heart disease (CAD) were examined. The average age of the subjects was 55.00±1.0 years (95% CI 51.11-58.89), among them: 78 men and 28 women.The entire cohort of patients was divided depending on the Lp(a) levels: 1group (n=58) with a Lp(a) level less than 50 mg/dl; 2 group (n=20) with Lp(a) level 50-100 mg/dl; 3 group (n=8) with Lp(a) level 101-150 mg/dl and 4 group (n=20) with Lp(a) level more than 150 mg/dl.Research methods included: 1. General clinical examination; 2. Laboratory characteristics of lipid (with determination of Lp(a)) and carbohydrate metabolism, as well as standard biochemical parameters; 3. Instrumental examination (electrocardiography, echocardiography, ultrasound peripheral vessels examination, coronary angiography); 4. Mathematical and statistical processing of the results obtained.Results and conclusions. In patients with CAD verified by clinical-instrumental and coronary angiographic criteria, it is noted that Lp(a) levels in women are on average significantly higher (P< 0.05) than in men and increase with the onset of menopause.Close correlations have not been recorded between Lp(a) in mg/dL and total cholesterol, LDL cholesterol and non-HDL cholesterol, as well as the concentrations of glucose, glycosylated hemoglobin, serum creatinine, and the concentration of thyroid-stimulating hormone (TSH).Determined that in patients with documented atherosclerotic lesions of the coronary arteries against the Lp(a) levels above 100 mg/dl, there is a greater need for coronary revascularization. A close relationship is observed between the increase in Lp(a) levels and the percentage of detection of aortic stenosis, which confirms the pathogenetic role of this lipoprotein in the formation of this acquired aortic valve disease.