A Case of Relapsing Peritoneal Dialysis-Associated Peritonitis by Dokdonella koreensis

Abstract EN

Peritonitis is a common and serious complication of peritoneal dialysis (PD) with significant morbidity.

We report the first case of relapsing Dokdonella koreensis peritonitis in a patient on peritoneal dialysis.

A 63-year-old Chinese man, with history of renal failure on continuous ambulatory peritoneal dialysis, presented with cloudy peritoneal effluent and abdominal pain.

There was no sign or symptom suggestive of exit-site/tunnel tract infection.

Peritoneal effluent cultures yielded Dokdonella koreensis which was initially misidentified as Weeksella virosa and Brevundimonas species by the API® 20 NE and VITEK® 2 GN ID card, respectively.

He was treated with intraperitoneal amikacin, but the infection relapsed within a few days upon completing each antibiotic course.

He eventually required removal of catheter and was transferred to hemodialysis.

Infections due to unusual organisms may pose a diagnostic issue as currently available commercial tests will not be able to identify them.

There is a role for using 16S rRNA sequencing to help identify these organisms and guide patient management.