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  • Title: Clinical outcomes and prognostic factors for patients with Vibrio vulnificus infections requiring intensive care: a 10-yr retrospective study.
    Author: Chen SC, Chan KS, Chao WN, Wang PH, Lin DB, Ueng KC, Kuo SH, Chen CC, Lee MC.
    Journal: Crit Care Med; 2010 Oct; 38(10):1984-90. PubMed ID: 20657269.
    Abstract:
    OBJECTIVE: Vibrio vulnificus infection is uncommon but potentially life-threatening. The aim of this study was to evaluate clinical outcomes and prognostic factors for patients with V. vulnificus infections admitted to an intensive care unit. DESIGN: Retrospective study. SETTING: Multidisciplinary intensive care unit in a 2300-bed teaching hospital. PATIENTS: Eighty-five adult patients (≥ 18 yrs) with V. vulnificus infections who required intensive care were enrolled and reviewed during a 10-yr period. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Thirty-four of the 85 patients died, giving an intensive care unit mortality rate of 40%. The mean Acute Physiology and Chronic Health Evaluation II score on intensive care unit admission was 18.4 (95% confidence interval, 17.1-19.8). The most common underlying disease was hepatic disease (48%) followed by diabetes mellitus (22%). Multivariate analysis showed that risk factors for intensive care unit mortality were the presence of hemorrhagic bullous skin lesions/necrotizing fasciitis (relative risk, 2.4; 95% confidence interval, 1.3-4.5; p = .006), skin/soft tissue infections involving two or more limbs (relative risk, 2.5; 95% confidence interval, 1.1-5.7; p = .025), and higher Acute Physiology and Chronic Health Evaluation II scores on intensive care unit admission (relative risk, 1.2; 95% confidence interval, 1.1-1.3; p = .0001). In contrast, surgical treatment < 24 hrs after arrival was inversely associated with intensive care unit mortality (relative risk, 0.35; 95% confidence interval, 0.15-0.79; p = .012). In addition, the area under the receiver operating characteristic curve for Acute Physiology and Chronic Health Evaluation II for predicting intensive care unit mortality was 0.945 (95% confidence interval, 0.873-0.983; p = .0001). An optimal cutoff Acute Physiology and Chronic Health Evaluation II score of ≥ 20 had a sensitivity of 97% and a specificity of 86% with a 41.4-fold increased risk of fatality (p = .0003). CONCLUSIONS: This study found that V. vulnificus-infected patients with hemorrhagic bullous skin lesions/necrotizing fasciitis, skin/soft tissue infections involving two or more limbs, or higher Acute Physiology and Chronic Health Evaluation II scores have high risks of intensive care unit mortality. However, patients receiving prompt surgical treatments within 24 hrs after admission have better prognoses.
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