%0 Journal Article %A Rodriguez-Gonzalez, Moises %A Castellano-Martinez, Ana %A Estalella-Mendoza, Ana %A Rodriguez-Campoy, Patricia %A Estepa-Pedregosa, Lorena %A Calero-Ruiz, Maria Mercedes %A Saez-Benito Godino, Ana %A Flores-Gonzalez, Jose Carlos %T Correlation between urinary and serum NT-proBNP in acute bronchiolitis: A pilot study. %D 2022 %U http://hdl.handle.net/10668/22495 %X We aimed to analyze the correlation of urinary with serum N-terminal pro-brain natriuretic peptide (NT-proBNP) concentrations and its association with severity in acute bronchiolitis. A pilot observational study was conducted between October 1, 2021 and March 31, 2022 including acute bronchiolitis cases who attended our institution. Serum and urinary NT-proBNP concentrations were determined using the Alere i NT-proBNP assay in time-matched urine and blood samples. The Mann-Whitney U test, Spearman's correlations, and simple linear regression were utilized to analyze the association of urine NT-proBNP levels with serum NT-proBNP and with variables indicative of severe bronchiolitis. Seventeen infants (median age 68 [IQR: 36-91] days) with 36 time-matched samples were included. The urine NT-proBNP was positively and strongly correlated with the serum NT-proBNP concentrations (Spearman's ρ = 0.81 & R2  coefficient = 0.751; p  The urinary NT-proBNP concentrations could be a reliable surrogate for serum NT-proBNP levels and resulted elevated in cases of acute bronchiolitis with complicated evolution, suggesting a potential as a noninvasive tool to assess severity in this setting. %K TB %K Acute bronchiolitis %K Biomarkers %K Infections: pneumonia %K Myocardial strain %K Natriuretic peptides %K Pulmonary hypertension %K Urinary NT-proBNP %K Viral %~