# Brevibacterium casei: A Rare Cause of Peritoneal Dialysis-Associated Peritonitis

## TL;DR

This paper reports a rare case of peritoneal dialysis-associated peritonitis caused by Brevibacterium casei, which was successfully treated with antibiotics.

## Contribution

The paper presents a rare clinical case of peritonitis caused by Brevibacterium casei and highlights successful catheter preservation.

## Key findings

- Brevibacterium casei caused peritoneal dialysis-associated peritonitis in a patient.
- Intraperitoneal antibiotics successfully treated the infection and preserved the PD catheter.
- Only four global cases of B. casei peritonitis have been reported, with catheter preservation in just one other.

## Abstract

Peritonitis is an important complication of peritoneal dialysis (PD), affecting up to 40% of patients at some point of their PD treatment. Here, we describe a case of PD-associated peritonitis due to an unusual pathogen, Brevibacterium casei. The patient was treated with intraperitoneal antibiotics, successfully preserving the PD catheter. To the best of our knowledge, only four cases of peritonitis due to B. casei have been previously documented worldwide, with catheter preservation achieved in just one other case.