Predictors of outcome in ICU patients with septic shock caused by Klebsiella pneumoniae carbapenemase-producing K. pneumoniae

被引:113
|
作者
Falcone, M. [1 ]
Russo, A. [1 ]
Iacovelli, A. [1 ]
Restuccia, G. [1 ]
Ceccarelli, G. [1 ]
Giordano, A. [1 ]
Farcomeni, A. [1 ]
Morelli, A. [2 ]
Venditti, M. [1 ]
机构
[1] Univ Roma La Sapienza, Policlin Umberto 1, Dept Publ Hlth & Infect Dis, Viale Univ 37, I-00161 Rome, Italy
[2] Univ Roma La Sapienza, Policlin Umberto 1, Dept Anesthesiol & Intens Care, I-00161 Rome, Italy
关键词
Adequate source control; carbapenem-resistant Klebsiella pneumoniae strain; colistin-resistance; KPC-Kp; septic shock; SURVIVING SEPSIS CAMPAIGN; COLISTIN RESISTANCE; KPC-2; CARBAPENEMASE; INFECTIONS; MORTALITY; SPREAD; GUIDELINES; MANAGEMENT; EMERGENCE; IMPACT;
D O I
10.1016/j.cmi.2016.01.016
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
The aim of this study was to identify factors associated with mortality in intensive care unit patients with Klebsiella pneumoniae carbapenemase-producing K. pneumoniae (KPC-Kp) septic shock. A retrospective analysis of intensive care unit patients with KPC-Kp infection and septic shock observed in a large teaching hospital from November 2010 to December 2014 was performed. A total of 111 patients were included in the study. The most frequent source of infection was unknown-focus bacteraemia in 53 patients (47.7%). The rate of resistance to colistin was 51.3%; 30-day mortality was reported for 44 patients (39.6%). Surviving patients were more frequently treated with an initial therapy (within 24 hours) including two or more antibiotics displaying in vitro activity against the isolated KPC-Kp strain (41.8 vs. 18.1%, p 0.01) and were also more likely to receive a definitive therapy including two or more in vitro active antibiotics (85.1 vs. 15.9%, p < 0.001). Cox regression analysis revealed that a colistin-containing antibiotic regimen (hazard ratio (HR) 0.21, confidence interval (CI) 95% 0.05-0.72, p < 0.001), use of two or more in vitro active antibiotics as definite therapy (HR 0.08, CI 95% 0.02-0.21, p < 0.001) and control of removable source of infection (HR 0.14, CI 95% 0.04-0.25, p < 0.001) were associated with favourable outcome; colistin resistance (HR 8.09, CI 95% 3.14-11.23, p 0.001) and intra-abdominal source of infection (HR 2.92, CI 95% 2.11-4.12, p 0.002) were associated with death. In conclusion, use of a definitive therapy with at least two antibiotics displaying in vitro activity against the KPC-Kp isolates was the most important determinant of favourable outcome, whilst isolation of colistin-resistant strains was associated with death in septic patients with KPC-Kp infection. (C) 2016 European Society of Clinical Microbiology and Infectious Diseases. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:444 / 450
页数:7
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