INFLUENCE OF SECONDARY HYPERPARATHYROIDISM ON THE CALCIFICATION OF HEART VALVES IN PATIENTS WITH CHRONIC KIDNEY DISEASE VD STAGE

The aim of this work was to study the relationship of elevated levels of parathyroid hormone (PTH) with cardiovascular changes (calcification of the heart valves) and to identify possible risk factors of calcification in the group of patients receiving renal replacement therapy. Materials and methods. The study included 96 patients with ESRD: 1-st group receives the treatment of peritoneal dialysis (PD) (45 patients), 2-nd group haemodialysis (HD) (51 patients). In serum determined concentration of calcium, phosphorus, PTH. All patients underwent echocardiographic examination. Results. The prevalence of secondary hyperparathyroidism in PD-patients reached 72%, in HD-patients 83%. Calcification of heart valves in both groups occurred in patients with high PTH level (greater than 400 PG/ml). Patients in both groups were significantly more frequent in the combined mitrale-aortic calcification. Isolated mitral calcification was detected more often aortic. Predictors of progression of calcification of heart valves in patients on PD is the age, in patients on HD - level average BP and the duration of dialysis therapy. Conclusions. Echocardiological data and clinical and laboratory examination of patients with ESRD allowed us to estimate the prevalence and structure of mitrale-aortic calcification and its relationship with secondary hyperparathyroidism.