Complicated intra-abdominal infection caused by extended drug–resistant Achromobacter xylosoxidans
Sing-On Teng, Tsong-Yih Ou, Yu-Chia Hsieh, Wuan-Chan Lee, Yi-Chun Lin, Wen-Sen Lee
Division of Infectious Disease, Department of Internal Medicine, Taipei Medical University, Wan Fang Hospital; and Taipei Medical University Hospital, Taipei, Taiwan
Received: April 14, 2008 Revised: June 6, 2008 Accepted: August 31, 2008
Achromobacter xylosoxidans (formerly Alcaligenes xylosoxidans) is a rare but important nosocomial pathogen. Antibiotic resistance has been increasing during the past decade. A. xylosoxidans may be confused with Pseudomonas spp. but, unlike Pseudomonas spp., this organism has peritrichous flagella. Complicated intra-abdominal infection with A. xylosoxidans has rarely been reported in the literature. This report is of an immunocompetent patient with acute cholecystitis complicated by an intra-abdominal abscess after surgery. Culture of both blood and ascites yielded extended drug–resistant A. xylosoxidans, which was only sensitive to colistin. The clinical and laboratory characteristics of A. xylosoxidans are presented.
Abdomen; Achromobacter denitrificans; Colistin; Infection
J Microbiol Immunol Infect. 2009;42:176-180.