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Hyperbaric oxygen does not improve outcome in patients with necrotizing soft tissue infection.

Abstract：

BACKGROUND:Patients with necrotizing soft tissue infections (NSTIs) require prompt surgical debridement, appropriate intravenous antibiotics, and intensive support. Despite aggressive treatment, their mortality and morbidity rates remain high. The benefit of hyperbaric oxygen (HBO) as an adjunctive treatment is controversial. We investigated the effect of HBO in treating NSTIs. METHODS:We analyzed clinical data retrospectively for 78 patients with NSTIs: 30 patients at one center were treated with surgery, antibiotics, and supportive care; 48 patients at a different center received adjunctive HBO treatment. We compared the two groups in terms of demographic characteristics, risk factors, NSTI microbiology, and patient outcomes. To identify variables associated with higher mortality rates, we used logistic regression analysis. RESULTS:Demographic characteristics and risk factors were similar in the HBO and non-HBO groups. The mean patient age was 49.5 years; 37% of the patients were female, and 49% had diabetes mellitus. Patients underwent a mean of 3.0 excisional debridements. The median hospital length of stay was 16.5 days; the median duration of antibiotic use was 15.0 days. In 36% of patients, cultures were polymicrobial; group A Streptococcus was the organism most commonly isolated (28%). We identified no statistically significant differences in outcomes between the two groups. The mortality rate for the HBO group (8.3%) was lower, although not significantly different (p = 0.48), than that observed for the non-HBO group (13.3%). The number of debridements was greater in the HBO group (3.0; p = 0.03). The hospital length of stay and duration of antibiotic use were similar for the two groups. Multivariable analysis showed that hypotension on admission and immunosuppression were significant independent risk factors for death. CONCLUSIONS:Adjunctive use of HBO to treat NSTIs did not reduce the mortality rate, number of debridements, hospital length of stay, or duration of antibiotic use. Immunosupression and early hypotension were important risk factors associated with higher mortality rates in patients with NSTIs.

journal_name

Surg Infect (Larchmt)

journal_title

Surgical infections

authors

George ME,Rueth NM,Skarda DE,Chipman JG,Quickel RR,Beilman GJ

doi

10.1089/sur.2007.085

subject

Has Abstract

pub_date

2009-02-01 00:00:00

pages

21-8

issue

eissn

1096-2964

issn

1557-8674

journal_volume

pub_type

杂志文章,多中心研究

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Hyperbaric oxygen does not improve outcome in patients with necrotizing soft tissue infection.