Unusual Cause of Peritonitis in Peritoneal Dialysis Patient Related to Streptococcus salivarius

Area of Science:

• Nephrology
• Infectious Diseases
• Microbiology

Background:

• Peritoneal dialysis (PD) is a vital treatment for end-stage renal disease.
• Peritonitis is the most frequent and serious complication of PD.
• Common causative agents include Staphylococcus species.

Observation:

• This report details an uncommon instance of PD-related peritonitis.
• The causative agent identified was Streptococcus salivarius.
• Streptococcus salivarius is generally considered a nonpathogenic bacterium of the oral flora.

Findings:

• The case demonstrates Streptococcus salivarius as a potential pathogen in PD peritonitis.
• This contrasts with the more frequent Gram-positive and Gram-negative bacterial causes.
• The identification of an oral flora bacterium highlights a less common route of infection.

Implications:

• This case expands the spectrum of known pathogens causing PD peritonitis.
• It underscores the importance of considering diverse bacterial sources in PD-related infections.
• Further investigation into the virulence factors of oral bacteria in PD settings may be warranted.