Biliary tract infections caused by Aeromonas species
Journal
European Journal of Clinical Microbiology and Infectious Diseases
Journal Volume
32
Journal Issue
2
Pages
245-251
Date Issued
2013
Author(s)
Abstract
This study investigated the clinical and microbiological characteristics of patients with Aeromonas infections of the biliary tract. Patients with bile cultures positive for Aeromonas species during the period July 2004 to December 2011 were identified from a computerized database of a hospital in Taiwan. Patients with Aeromonas infections of the biliary tract were further identified. During the study period, a total of 1,142 isolates of Aeromonas species were obtained from 750 patients. Of those patients, 91 (12.1 %) had Aeromonas infections of the biliary tract. The annual incidence (episodes per 10,000 patient-days) of biliary tract infections caused by all Aeromonas species was 0.31 in 2007, 0.12 in 2010, and 0.27 in 2011. A. hydrophila was the most common species isolated (n = 41, 45.1 %), followed by A. caviae (n = 30, 33.0 %), A. veronii biovar sobria (n = 15, 16.5 %), and A. veronii biovar veronii (n = 5, 5.5 %). The majority of patients (n = 77, 84.6 %) had polymicrobial infections. Hepatobiliary stones (n = 50, 54.9 %) and hepatobiliary cancer (n = 38, 41.8 %) were the most common underlying diseases, followed by diabetes mellitus (n = 29, 31.9 %) and liver cirrhosis (n = 7, 7.7 %). The in-hospital mortality rate was 8.8 %. Infection-related mortality was associated with underlying immunocompromised condition (p = 0.044) and use of mechanical ventilation (p = 0.004), but was not associated with inappropriate antibiotic usage or concomitant bacteremia (n = 8, 8.8 %). In conclusion, biliary tract infections caused by Aeromonas species are not uncommon and can develop in both immunocompromised and immunocompetent patients; however, patients with underlying hepatobiliary diseases are particularly susceptible to these infections. ? 2012 Springer-Verlag.
SDGs
Other Subjects
amikacin; ampicillin; C reactive protein; cefazolin; cefepime; ceftazidime; ceftriaxone; cephalosporin; imipenem; abdominal pain; adult; Aeromonas; Aeromonas hydrophila; Aeromonas punctata; Aeromonas veronii; aged; antibiotic sensitivity; article; artificial ventilation; bacterium culture; bacterium detection; bacterium isolate; biliary tract drainage; biliary tract infection; cause of death; clinical feature; comorbidity; female; human; incidence; leukocyte count; leukocytosis; major clinical study; male; nonhuman; percutaneous transhepatic cholangiography; percutaneous transhepatic drainage; priority journal; protein blood level; shock; Taiwan; Aeromonas; Aged; Aged, 80 and over; Biliary Tract Diseases; Calculi; Coinfection; Diabetes Complications; Female; Gram-Negative Bacterial Infections; Humans; Incidence; Male; Survival Analysis; Taiwan
Type
journal article