Citation

Kuo G, Lee CC, Yang SY, Hsiao YC, Chuang SS, Chang SW, Tu KH, Fan PC, Tian YC, Chen YC, Chang CH. PLoS One 2018; 13(1): e0190978.

Affiliation

Graduate Institute of Clinical Medicine Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.

Copyright

(Copyright © 2018, Public Library of Science)

DOI

10.1371/journal.pone.0190978

PMID

29315336

Abstract

INTRODUCTION: Phosphate level is often deranged during acute illness, regardless of the presence of kidney injury or not. A few studies described that hypophosphatemia may associated with outcome in patients admitted to the burn unit, but the literatures for hyperphosphatemia is limited. Our study aims to evaluate if hyperphosphatemia, one of the sign of severe tissue damage or kidney injury, will associate with mortality of patients with severe burns.

MATERIALS AND METHODS: The study was a post hoc analysis of prospectively collected data from patients admitted to the burn unit between September 2006 and December 2011. Patients were stratified into normophosphatemic or hyperphosphatemic group by baseline plasma phosphate level. The primary endpoint is 90-day mortality.

RESULTS: Total 301 patients were included (hyperphosphatemia: n = 52; normophosphatemia: n = 249). The hyperphosphatemic group had lower Glasgow Coma Scale, mean arterial blood pressure, hemoglobin level, albumin, and higher TBSA of burns, APACHE II score, ABSI score, Acute kidney injury (AKI), and creatinine. The 90-day mortality was higher in the hyperphosphatemic group than in the normal group (53.8% vs 18.1%, P <.001) and this difference was still significant when adjusting for several confounding factors (hazard ratio, 2.05; 95% CI, 1.17-3.59). Multivariable Cox analysis showed risk factors of mortality included TBSA of burns, hyperphosphatemia, reduced urine output, and APACHE II score.

CONCLUSIONS: Our study found in addition to TBSA of burns and inhalation injury, baseline hyperphosphatemia in patients with severe burns is also associated with higher mortality.

Language: en