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Article Publish Status: FREE
Abstract Title:

Effect of high-dose vitamin C therapy on severe burn patients: a nationwide cohort study.

Abstract Source:

Crit Care. 2019 12 12 ;23(1):407. Epub 2019 Dec 12. PMID: 31831039

Abstract Author(s):

Mikio Nakajima, Morita Kojiro, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Yasuhiko Kaita, Hideaki Goto, Yoshihiro Yamaguchi, Hideo Yasunaga

Article Affiliation:

Mikio Nakajima

Abstract:

BACKGROUND: Vitamin C is a well-documented antioxidant that reduces oxidative stress and fluid infusion in high doses; however, the association between high-dose vitamin C and reduced mortality remains unclear. This study evaluates the effect of high-dose vitamin C in severe burn patients under two varying thresholds.

METHODS: We enrolled adult patients with severe burns (burn index≥ 15) who were registered in the Japanese Diagnosis Procedure Combination national inpatient database from 2010 to 2016. Propensity score matching was performed between patients who received high-dose vitamin C within 1 day of admission (vitamin C group) and those who did not (control group).High-dose vitamin C was defined as a dosage in excess of 10 g or 24 g within 2 days of admission. The primary outcome was in-hospital mortality.

RESULTS: Eligible patients (n = 2713) were categorized into the vitamin C group (n = 157) or control group (n = 2556). After 1:4 propensity score matching, we compared 157 and 628 patients who were administered high-dose vitamin C (> 10-g threshold) and controls, respectively. Under this particular threshold, high-dose vitamin C therapy was associated with reduced in-hospital mortality (risk ratio, 0.79; 95% confidence interval, 0.66-0.95; p = 0.006). In contrast, in-hospital mortality did not differ between the control and high-dose vitamin C group under the> 24-g threshold (risk ratio, 0.83; 95% confidence interval, 0.68-1.02; p = 0.068).

CONCLUSIONS: High-dose vitamin C therapy was associated with reduced mortality in patients with severe burns when used under a minimum threshold of 10 g within the first 2 days of admission. While"high-dose"vitamin C therapy lacks a universal definition, the present study reveals that different"high-dose"regimens may yield improved outcomes.

Study Type : Human Study

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Sayer Ji
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