Stenotrophomonas maltophilia peritonitis in a patient receiving automated peritoneal dialysis.

Stenotrophomonas maltophilia is increasingly being recognized as an important cause of nosocomial infection. S. maltophilia peritonitis is a rare complication of chronic peritoneal dialysis. Here, we report the case of a 54-year-old female with end-stage renal disease treated with automated peritoneal dialysis. The patient had no previous history of peritonitis or catheter exit-site infection. She presented with fever, abdominal pain, and cloudy peritoneal effluent. The organism isolated from the effluent was S. maltophilia. The patient received trimethoprim 320 mg and sulfamethoxazole 1600 mg for 6 weeks, plus amikacin 200 mg for 14 days. She recovered completely, with no need for catheter removal. No recurrence was observed.