Peritoneal dialysis associated infections: An update on diagnosis and management

Jacob A Akoh1

  • 1Jacob A Akoh, South West Transplant Centre, Plymouth Hospitals NHS Trust, Derriford Hospital, Plymouth PL6 8DH, United Kingdom.

Insights

Peritoneal dialysis (PD) infections are common, increasing mortality risk. Prompt diagnosis and management, alongside preventative measures like antibiotic prophylaxis and S. aureus nasal carriage treatment, are crucial for patient outcomes and preserving PD.

Area of Science:

  • Nephrology
  • Infectious Diseases
  • Medical Microbiology

Background:

  • Peritoneal dialysis (PD) is frequently complicated by infections affecting the peritoneum, subcutaneous tunnel, and catheter exit site.
  • PD-associated infections pose significant risks, including increased mortality, PD catheter removal, and failure of the dialysis modality.
  • Current infection rates often exceed established quality standards, highlighting a critical area for clinical improvement.

Purpose of the Study:

  • To assess the prevalence and impact of PD-associated infections.
  • To identify key risk factors contributing to these infections.
  • To provide an updated overview of diagnostic and management strategies for PD infections.

Main Methods:

  • Review of literature on PD-associated infections, focusing on epidemiology, causative agents, and treatment outcomes.
  • Analysis of reported infection rates and their correlation with patient mortality and PD modality survival.
  • Evaluation of current diagnostic approaches and therapeutic regimens, including antibiotic protocols and preventative measures.

Main Results:

  • Gram-positive cocci, particularly Staphylococcus epidermidis and Staphylococcus aureus, are the predominant pathogens causing PD peritonitis.
  • Empiric antibiotic therapy combining vancomycin and ciprofloxacin demonstrates a 77% success rate for PD peritonitis.
  • Fungal peritonitis necessitates catheter removal and antifungal treatment, often leading to a switch to hemodialysis.

Conclusions:

  • Effective management of PD-associated infections requires improved diagnostics and heightened awareness of causative agents.
  • Preventative strategies, including prophylactic antibiotics, patient education, meticulous exit-site care, and S. aureus nasal carriage treatment (e.g., mupirocin), are essential.
  • While mupirocin reduces exit-site infection risk by 46%, it does not universally prevent peritonitis from all organisms, underscoring the need for comprehensive infection control.

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