The effects of weekly mupirocin application on infections in continuous ambulatory peritoneal dialysis patients

Area of Science:

• Nephrology
• Infectious Diseases
• Clinical Pharmacy

Background:

• Continuous ambulatory peritoneal dialysis (CAPD) patients are susceptible to catheter-related infections.
• The optimal application frequency and site for prophylactic mupirocin in CAPD remain debated.
• Catheter exit-site infections (AESIs) and peritonitis are significant complications in CAPD.

Purpose of the Study:

• To assess the efficacy of once-weekly mupirocin application at the catheter exit site for preventing infections in CAPD patients.
• To compare the infection rates before and after the implementation of the mupirocin regimen.
• To evaluate the impact of mupirocin on specific pathogens, particularly Staphylococcus aureus.

Main Methods:

• A historical control group design was employed.
• 18 CAPD patients without prior prophylactic antibiotics were instructed on once-weekly mupirocin ointment application to the exit site.
• Data on infection incidence, causative microorganisms, and catheter loss were collected and analyzed.

Main Results:

• A significant reduction in acute exit-site infections (AESIs) was observed, decreasing from 0.45 to 0.06 episodes/patient-year (86% reduction).
• Staphylococcus aureus, a common cause of AESIs, was eradicated after mupirocin implementation.
• Peritonitis episodes decreased by 48%, from 0.56 to 0.29 episodes/patient-year.

Conclusions:

• Once-weekly mupirocin application to the catheter exit site is a highly effective strategy for reducing CAPD-related infections.
• This regimen achieves infection reduction rates comparable to daily application, offering a potentially more convenient alternative.
• Prophylactic mupirocin significantly lowers the incidence of AESIs and peritonitis, improving patient outcomes in CAPD.