• Chia-Peng Chang and Cheng-Ting Hsiao.
• Department of Emergency Medicine, Chang Gung Memorial Hospital, Chiayi, Taiwan.
• Medicine (Baltimore). 2023 Jul 7; 102 (27): e34207e34207.

AbstractThe diagnostic accuracy of laboratory risk indicator for necrotizing fasciitis (LRINEC) score system in specific Vibrio vulnificus (V vulnificus ) necrotizing fasciitis (NF) have not been fully investigated yet. This aim of our study is to validate the LRINEC score in patients with V vulnificus NF. A retrospective study of hospitalized patients was conducted in a hospital in southern Taiwan between January 2015 and December 2022. Clinical characteristics, variables and outcomes were compared among V vulnificus NF, non- Vibrio NF and cellulitis patients. A total of 260 patients were included, 40 in V vulnificus NF group, 80 in non- Vibrio NF group and 160 patients in cellulitis group. In V vulnificus NF group with an LRINEC cutoff score ≥ 6, the sensitivity was 35% (95% confidence interval [CI]: 29%-41%), specificity was 81% (95% CI: 76%-86%), PPV was 23% (95% CI: 17%-27%), and NPV was 90% (95% CI: 88%-92%). The AUROC for accuracy of the LRINEC score in V vulnificus NF was 0.614 (95% CI: 0.592-0.636). Multi-variable logistic regression analysis revealed that LRINEC > 8 was significantly associated with higher in-hospital mortality (adjusted odds ratio = 1.57; 95% CI: 1.43-2.08; P < .01). The LRINEC score may not be an accurate tool for V vulnificus NF. That should be used with caution as a routine diagnostic tool. However, LRINEC > 8 is significantly associated with higher mortality in V vulnificus NF patients.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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