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Title: [High levels of atrial natriuretic peptide and copeptin and mortality risk].
Author: Rey C, García-Cendón C, Martínez-Camblor P, López-Herce J, Concha-Torre A, Medina A, Vivanco-Allende A, Mayordomo-Colunga J.
Journal: An Pediatr (Barc); 2016 Dec; 85(6):284-290. PubMed ID: 26988235.
Abstract:
OBJECTIVE: To determine whether high levels of mid-regional pro-atrial natriuretic peptide (MR-proANP), copeptin, and procalcitonin (PCT) plasma concentrations are associated with increased mortality risk. METHODS: Prospective observational study including 254 critically ill children. MR-proANP, copeptin and PCT were compared between children with high (Group A; n=33) and low (Group B; n=221) mortality risk, and between patients with failure of more than 1 organ (Group 1; n=71) and less than 2 (Group 2; n=183). RESULTS: Median (range) of MR-proANP, copeptin, and PCT levels in group A vs B were, respectively: 209.4 (30.5-1415.8) vs. 75.0 (14.6-867.2) pmol/L (P<.001); 104.4 (7.4-460.9) vs. 26.6 (0.00-613.1) pmol/L (P<.001), and 7.8 (0.3-552.0) vs. 0.3 (0.02-107.0) ng/mL (P<.001). The area under the curve (AUC) for the differentiation of group A and B was 0.764 (95% CI: 0.674-0.854) for MR-proANP; 0.735 (0.642-0.827) for copeptin, and 0.842 (0.744-0.941) for PCT, with no statistical differences. The AUCs for the differentiation of group 1 and 2 were: 0.837 (0.784-0.891) for MR-proANP, 0.735 (0.666-0.804) for copeptin, and 0.804 (0.715-0.892) for PCT, with statistical differences between MR-proANP and copeptin, P=.01. CONCLUSIONS: High levels of MR-proANP, copeptin and PCT were associated with increased mortality risk scores. MR-proANP showed a higher association than copeptin with number of organs in failure.

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