A Case of Peritonitis caused by Chryseobacterium meningosepticum in a Patient Treated with Peritoneal Dialysis / 대한신장학회지

ABSTRACT

Chryseobacterium meningosepticum is rarely encountered as a pathogen causing peritonitis in peritoneal dialysis (PD) patients. We report a case of peritonitis due to Chryseobacterium meningosepticum, which was treated successfully with intraperitoneal (IP) vancomycin and ciprofloxacin, and without PD catheter removal. Peritonitis was developed in a 53-year-old PD patient on the third hospital day. Although empirical IP treatment with cefazolin and tobramycin was initiated and maintained for 3 days, the fever and signs of peritonitis persisted. Antibiotics were changed to cefoperazone/sulbactam, amikacin, and vancomycin due to clinical deterioration. After 3 days of vancomycin use, leukocyte count in PD fluid was less than 100/mm3 and the patient became asymptomatic. On seventh day after the onset of peritonitis, Chryseobacterium meningosepticum was isolated from initial dialysate sample, and this strain was susceptible to ciprofloxacin, piperacillin, and piperacillin/tazobactam. Accordingly, we changed the antibiotics to ciprofloxacin and vancomycin, which were given for the total of 14 days. Even though Chryseobacterium meningosepticum is an uncommon causative organism of peritonitis in PD patients, this report suggests that vancomycin and ciprofloxacin are effective as empiric therapy, and early suspicion and appropriate antimicrobial therapy are crucial to the successful treatment of peritonitis due to Chryseobacterium meningosepticum without catheter removal.