Usefulness of N-terminal pro-B-type natriuretic peptide in patients admitted to the intensive care unit: a multicenter prospective observational study
- Chin Kook Rhee; So Yeon Lim; Shin Ok Koh; Won-Il Choi; Young-Joo Lee; Gyu Rak Chon; Je Hyeong Kim; Jae Yeol Kim; Jaemin Lim; Sunghoon Park; Ho Cheol Kim; Jin Hwa Lee; Ji Hyun Lee; Jisook Park; Younsuck Koh; Gee Young Suh; Seok Chan Kim; Validation of Simplified acute physiology score3 in Korean Intensive care unit (VSKI) study group & the Korean study group on respiratory failure (KOSREF)
- Dept. of Internal Medicine (내과학)
- Issue Date
- BMC Anesthesiology, Vol.14(1) : 16-16, 2014
The role of N-terminal pro-B-type natriuretic peptide (NT-pro-BNP) as a prognostic factor in patients admitted to the intensive care unit (ICU) is not yet fully established. We aimed to determine whether NT-pro-BNP is predictive of ICU mortality in a multicenter cohort of critically ill patients.
A total of 1440 patients admitted to 22 ICUs (medical, 14; surgical, six; multidisciplinary, two) in 15 tertiary or university-affiliated hospitals between July 2010 and January 2011 were assessed. Patient data, including NT-pro-BNP levels and Simplified Acute Physiology Score (SAPS) 3 scores, were recorded prospectively in a web-based database.
The median age was 64 years (range, 53-73 years), and 906 (62.9%) patients were male. The median NT-pro-BNP level was 341 pg/mL (104-1,637 pg/mL), and the median SAPS 3 score was 57 (range, 47-69). The ICU mortality rate was 18.9%, and hospital mortality was 24.5%. Hospital survivors showed significantly lower NT-pro-BNP values than nonsurvivors (245 pg/mL [range, 82-1,053 pg/mL] vs. 875 pg/mL [241-5,000 pg/mL], respectively; p < 0.001). In prediction of hospital mortality, the area under the curve (AUC) for NT-pro-BNP was 0.67 (95% confidence interval [CI], 0.64-0.70) and SAPS 3 score was 0.83 (95% CI, 0.81-0.85). AUC increment by adding NT-pro-BNP is minimal and likely no different to SAPS 3 alone.
The NT-pro-BNP level was more elevated in nonsurvivors in a multicenter cohort of critically ill patients. However, there was little additional prognostic power when adding NT-pro-BNP to SAPS 3 score.
Keywords: N-terminal pro-B-type natriuretic peptide, Intensive care unit, Critical care, Prognosis
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