Microbial epidemiology and outcome of bloodstream infections in liver transplant recipients: an analysis of 259 episodes.
Bloodstream infections (BSIs) are a major cause of mortality in liver transplant recipients. The incidence, microbiology, and outcome of BSIs in the first year after liver transplantation were analyzed in 704 patients who underwent transplantation at a single center between 1997 and 2007. BSIs occurred in 205 (29.1%) of the 704 patients. Overall, 259 episodes were documented, and they resulted in an incidence rate of 36.8%. Of these episodes, 39.4%, 27.8%, 17%, and 15.8% occurred in the very early period (< or = 10 days after liver transplantation), the early period (days 11-30), the intermediate period (days 31-90), and the late period (days 91-365), respectively. The most frequent pathogens were Enterobacteriaceae members (41%), Staphylococcus aureus (19.8%), enterococci (13.1%), Pseudomonas aeruginosa (8.8%), and yeasts (7.1%). The median time of onset ranged from 7 days for methicillin-resistant S. aureus to 25 days for Enterobacteriaceae. Mortality at 15 days after BSIs was 16.2%. Kaplan-Meier survival curves showed that patients with BSIs had a significantly higher 1-year mortality rate than those without BSIs (28.3% versus 16.6%, P < 0.001 with the log-rank test). When the time of BSI onset was considered, 1-year mortality was significantly associated with very early and early episodes (P < 0.001) but not with intermediate and late episodes (P = 0.47). In conclusion, BSIs are frequent and early complications after liver transplantation and are mostly caused by gram-negative bacilli. A BSI in the first posttransplant month is a significant predictor of 1-year survival.
Bert
Frédéric
F
Department of Microbiology, APHP, Beaujon Hospital, Clichy, France. frederic.bert@bjn.aphp.fr
Larroque
Beatrice
B
Paugam-Burtz
Catherine
C
Janny
Sylvie
S
Durand
Francois
F
Dondero
Fédérica
F
Valla
Dominique-Charles
DC
Belghiti
Jacques
J
Moreau
Richard
R
Nicolas-Chanoine
Marie-Hélène
MH
D000328:Adult; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D004352:Drug Resistance, Microbial; D004756:Enterobacteriaceae Infections / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology; D005260:Female; D016905:Gram-Negative Bacterial Infections / Q000175:diagnosis / Q000188:drug therapy* / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D053208:Kaplan-Meier Estimate; D016031:Liver Transplantation; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011379:Prognosis; D012189:Retrospective Studies; D013203:Staphylococcal Infections / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology; D013290:Streptococcal Infections / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology; D016896:Treatment Outcome
D000900:Anti-Bacterial Agents