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B-type natriuretic peptide concentrations predict the progression of nondiabetic chronic kidney disease: the Mild-to-Moderate Kidney Disease Study


Spanaus, Katharina-Susanne; Kronenberg, Florian; Ritz, Eberhard; Schlapbach, Ralph; Fliser, Danilo; Hersberger, Martin; Kollerits, Barbara; König, Paul; von Eckardstein, Arnold (2007). B-type natriuretic peptide concentrations predict the progression of nondiabetic chronic kidney disease: the Mild-to-Moderate Kidney Disease Study. Clinical Chemistry, 53(7):1264-1272.

Abstract

BACKGROUND: Plasma concentrations of B-type natriuretic peptide (BNP) and N-terminal proBNP (NT-proBNP) are diagnostic and prognostic biomarkers of heart failure and are also increased in patients with chronic kidney disease (CKD). We examined the relevance of BNP and NT-proBNP as predictors of CKD progression. METHODS: Of 227 nondiabetic patients with mild-to-moderate renal insufficiency, 177 patients ages 18-65 years were followed in a prospective multicenter cohort study for a period of < or = 7 years. CKD progression was assessed by recording renal endpoints, defined as doubling of baseline serum creatinine or end-stage renal disease (ESRD) requiring renal replacement therapy. RESULTS: BNP and NT-proBNP were significantly higher among 65 patients who reached the combined renal endpoint than among the 112 who did not [median (interquartile range) 61 (27-98) ng/L vs 39 (20-70) ng/L, P = 0.023, for BNP; 320 (117-745) ng/L vs 84 (44-176) ng/L, P <0.001, for NT-proBNP)]. Each increment of 1 SD in log-transformed BNP and NT-proBNP increased the risk of CKD progression by hazard ratios of 1.38 (95% CI 1.09-1.76, P = 0.009) and 2.28 (1.76-2.95, P <0.001), respectively. After adjustment for other established prognostic factors of CKD progression, NT-proBNP but not BNP remained a significant independent predictor of the combined renal endpoint. CONCLUSIONS: Increased BNP and NT-proBNP concentrations indicate an increased risk for accelerated progression of CKD to ESRD and may prove to be valuable biomarkers for the assessment of prognosis in patients with CKD.

Abstract

BACKGROUND: Plasma concentrations of B-type natriuretic peptide (BNP) and N-terminal proBNP (NT-proBNP) are diagnostic and prognostic biomarkers of heart failure and are also increased in patients with chronic kidney disease (CKD). We examined the relevance of BNP and NT-proBNP as predictors of CKD progression. METHODS: Of 227 nondiabetic patients with mild-to-moderate renal insufficiency, 177 patients ages 18-65 years were followed in a prospective multicenter cohort study for a period of < or = 7 years. CKD progression was assessed by recording renal endpoints, defined as doubling of baseline serum creatinine or end-stage renal disease (ESRD) requiring renal replacement therapy. RESULTS: BNP and NT-proBNP were significantly higher among 65 patients who reached the combined renal endpoint than among the 112 who did not [median (interquartile range) 61 (27-98) ng/L vs 39 (20-70) ng/L, P = 0.023, for BNP; 320 (117-745) ng/L vs 84 (44-176) ng/L, P <0.001, for NT-proBNP)]. Each increment of 1 SD in log-transformed BNP and NT-proBNP increased the risk of CKD progression by hazard ratios of 1.38 (95% CI 1.09-1.76, P = 0.009) and 2.28 (1.76-2.95, P <0.001), respectively. After adjustment for other established prognostic factors of CKD progression, NT-proBNP but not BNP remained a significant independent predictor of the combined renal endpoint. CONCLUSIONS: Increased BNP and NT-proBNP concentrations indicate an increased risk for accelerated progression of CKD to ESRD and may prove to be valuable biomarkers for the assessment of prognosis in patients with CKD.

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Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of Clinical Chemistry
Dewey Decimal Classification:610 Medicine & health
540 Chemistry
Date:2007
Deposited On:09 Oct 2013 13:33
Last Modified:05 Sep 2017 15:26
Publisher:American Association for Clinical Chemistry
ISSN:0009-9147
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1373/clinchem.2006.083170
PubMed ID:17478561

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