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Effect of estimated glomerular filtration rate on plasma concentrations of B-type natriuretic peptides measured with multiple immunoassays in elderly individuals.
Hillerod University Hospital, Denmark.
Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
The Heart Centre, Copenhagen, Denmark.
Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.ORCID iD: 0000-0001-6353-8041
2009 (English)In: Heart, ISSN 1355-6037, E-ISSN 1468-201X, no 95, 1514-1519 p.Article in journal (Refereed) Published
Abstract [en]

Objetive: This study was designed to quantify the crude and adjusted effects of estimated glomerular filtration rate (eGFR) on N-terminal-pro-brain-natriuretic peptide (proBNP) measured with three immunoassays and brain natriuretic peptide (BNP) in elderly individuals.

Design: Cross-sectional study.

Setting: 474 elderly outpatients with suspected heart failure (prevalence 13%) from the primary care.

Main outcome measures: The effects of eGFR on proBNP, measured with three different immunoassays (Roche Diagnostics, Oslo and Copenhagen), and BNP (Shionogi) concentrations were evaluated by multiple linear regression models.

Results: In univariate analyses the effect of a 10% decrease in eGFR on proBNP concentrations was a 15% (95% confidence interval 11% to 18%), 9% (5% to 13%) and 21% (14% to 28%) increase. In multivariate models the effect was a 7% (3% to 11%), 4% (2% to 6%) and 13% (4% to 20%) increase. The effect of a 10% decrease in eGFR on BNP concentrations (Shionogi) was a 10% (5% to 15%) (univariate) and a 4% (1% to 9%) (multivariate) increase.

Conclusions: The effect of eGFR on proBNP measured with three different immunoassays and BNP is modest and within the same range. The effect of eGFR on proBNP and BNP concentrations is reduced substantially after adjustment for important clinical and echocardiographic confounders. These findings should be considered before renal function is offered as an explanation for increased proBNP or BNP levels.

Place, publisher, year, edition, pages
2009. no 95, 1514-1519 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-21377DOI: 10.1136/hrt.2009.173666OAI: oai:DiVA.org:liu-21377DiVA: diva2:241150
Available from: 2009-10-01 Created: 2009-10-01 Last updated: 2017-12-13

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Alehagen, UrbanDahlström, Ulf

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