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Article Abstract
: N-terminal pro-brain natriuretic peptide (NT-proBNP) is a biomarker used to predict heart failure and evaluate volume status in hemodialysis (HD) patients. However, it is difficult to determine the cutoff value for NT-proBNP in HD patients. In this study, we analyzed whether NT-proBNP helps predict heart function and volume status in HD patients. : This prospective observational study enrolled 96 end-stage kidney disease patients with HD. All patients underwent echocardiography and bioimpedance spectroscopy (BIS) after an HD session. Overhydration (OH) was measured by BIS. Laboratory data were obtained preHD, while serum NT-proBNP was measured after HD. Interventions for blood pressure control and dry weight control were performed, and NT-proBNP was re-assessed after a month. : There was an inverse correlation between NT-proBNP and ejection fraction (EF) (β = -0.34, = 0.001). OH (β = 0.331, = 0.001) and diastolic dysfunction (β = 0.226, = 0.027) were associated with elevated NT-proBNP. In a subgroup analysis of diastolic dysfunction grade, NT-proBNP increased according to dysfunction grade (normal, 4177 pg/mL [2637-10,391]; grade 1, 9736 pg/mL [5471-21,110]; and grades 2-3, 26,237 pg/mL [16,975-49,465]). NT-proBNP showed a tendency toward a decrease in the 'reduced dry weight' group and toward an increase in the 'increased dry weight' group compared to the control group (ΔNT-proBNP, -210 pg/mL [-12,899 to 3142], = 0.104; 1575 pg/mL [-113 to 6439], = 0.118). : We confirmed that NT-proBNP is associated with volume status as well as heart function in HD patients.
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| http://dx.doi.org/10.3390/medicina58080975 | DOI Listing |
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