Abstract

Background: Left ventricular hypertrophy is the most common structural cardiac alteration in chronic dialysis patients. The aim of this study was to determine the possible association of endotelin-1 (ET-1) and nitric oxide (NO) with parameters of echocardiography in order to assess their participation in left ventricular (LV) remodeling in patients on peritoneal dialysis (PD). Methods: This prospective longitudinal study included 40 PD patients. Serum levels of ET-1 and NO baseline and after 12 months of PD treatment were measured and compared with echocardiography parameters done at the same time of PD treatment. Linear regression analysis was used to detect independent correlations of variables. Results: Mean ET-1 serum concentration decreased significantly after 12 months of PD treatment compared to baseline values (p < 0.01). NO serum concentration increased significantly 12 months after treatment compared to baseline values (p < 0.01). Left ventricular hypertrophy (LVH) was observed in 72.5% of patients at baseline with significant reduction in LV mass index after 12 months of PD treatment (p < 0.001). On linear regression analysis serum concentration of ET-1 was independent predictors of LV mass index, as well as NO at the end of observed period. Conclusions: According to our data ET-1 and NO are independently related to the process of left ventricular remodeling in PD patients

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