Title |
Treatment Outcome of Bacteremia Due to KPC-Producing Klebsiella pneumoniae: Superiority of Combination Antimicrobial Regimens
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Published in |
Antimicrobial Agents and Chemotherapy, January 2012
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DOI | 10.1128/aac.06268-11 |
Pubmed ID | |
Authors |
Zubair A. Qureshi, David L. Paterson, Brian A. Potoski, Mary C. Kilayko, Gabriel Sandovsky, Emilia Sordillo, Bruce Polsky, Jennifer M. Adams-Haduch, Yohei Doi |
Abstract |
Klebsiella pneumoniae producing Klebsiella pneumoniae carbapenemase (KPC) has been associated with serious infections and high mortality. The optimal antimicrobial therapy for infection due to KPC-producing K. pneumoniae is not well established. We conducted a retrospective cohort study to evaluate the clinical outcome of patients with bacteremia caused by KPC-producing K. pneumoniae. A total of 41 unique patients with blood cultures growing KPC-producing K. pneumoniae were identified at two medical centers in the United States. Most of the infections were hospital acquired (32; 78%), while the rest of the cases were health care associated (9; 22%). The overall 28-day crude mortality rate was 39.0% (16/41). In the multivariate analysis, definitive therapy with a combination regimen was independently associated with survival (odds ratio, 0.07 [95% confidence interval, 0.009 to 0.71], P = 0.02). The 28-day mortality was 13.3% in the combination therapy group compared with 57.8% in the monotherapy group (P = 0.01). The most commonly used combinations were colistin-polymyxin B or tigecycline combined with a carbapenem. The mortality in this group was 12.5% (1/8). Despite in vitro susceptibility, patients who received monotherapy with colistin-polymyxin B or tigecycline had a higher mortality of 66.7% (8/12). The use of combination therapy for definitive therapy appears to be associated with improved survival in bacteremia due to KPC-producing K. pneumoniae. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Practitioners (doctors, other healthcare professionals) | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 4 | 1% |
Brazil | 2 | <1% |
Switzerland | 1 | <1% |
Netherlands | 1 | <1% |
Australia | 1 | <1% |
Italy | 1 | <1% |
Korea, Republic of | 1 | <1% |
Nigeria | 1 | <1% |
Spain | 1 | <1% |
Other | 2 | <1% |
Unknown | 336 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 58 | 17% |
Student > Bachelor | 47 | 13% |
Student > Ph. D. Student | 44 | 13% |
Student > Master | 33 | 9% |
Other | 30 | 9% |
Other | 80 | 23% |
Unknown | 59 | 17% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 138 | 39% |
Agricultural and Biological Sciences | 45 | 13% |
Immunology and Microbiology | 39 | 11% |
Pharmacology, Toxicology and Pharmaceutical Science | 18 | 5% |
Biochemistry, Genetics and Molecular Biology | 14 | 4% |
Other | 22 | 6% |
Unknown | 75 | 21% |