Plasma B-type natriuretic peptide in dialyzed patients: marker of cardiovascular disease or link to plasma refilling

Autor: Doriana Chiarinotti, Martino De Leo, Maddalena Brustia, Paola David, Mariangela De Maria, Carlo Navino, Federica Capurro, Giorgio Bellomo, Laura Ciardi, Andreana De Mauri, Carlo Edoardo Ruva
Rok vydání: 2010
Předmět:
Zdroj: Journal of nephrology. 24(4)
ISSN: 1724-6059
Popis: BACKGROUND B-type natriuretic peptide (BNP) is released in response to extracellular volume and blood pressure (BP) overload and is a risk factor for cardiovascular diseases (CVD). BNP is increased in dialyzed patients (HDpts). The aim of this study was to evaluate the relationships between BNP and renin, aldosterone and blood volume reduction rate (BV/WL), with the presence of CVD and mortality. METHODS Fifty-one HDpts aged 70 ± 14 years were enrolled. BP, BV/WL, BNP, aldosterone, renin, C-reactive protein (CRP), troponin I and routine biochemistry were measured. According to the predialytic plasma BNP levels, the patients were divided into group A with higher BNP and group B with lower BNP than the median value of 330 pg/mL. Follow-up was 1 year. RESULTS After HD, plasma BNP (449.6 ± 582.2 pg/mL vs. 264.1 ± 269.8 pg/mL, p=0.0008) and aldosterone (421.8 ± 573.4 pg/mL vs. 265.1 ± 566.2 pg/mL, p=0.0003) decreased, but not rennin. BNP decreased more after hemodiafiltration than after standard HD (-55.1% ± 28.5% vs. -26.5% ± 19.5%, p=0.002). Patients in group A exhibited more diabetes (58% vs. 28%, p=0.03), ischemic heart disease (42% vs. 16%, p=0.04), left ventricular hypertrophy (88.8% vs. 33.3%, p
Databáze: OpenAIRE