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The dialysis catheter and infectious peritonitis in intermittent peritoneal dialysis
Abstract:
118 episodes of infectious peritonitis registered among 156 patients treated with intermittent peritoneal dialysis over a 5-yr period were analysed with special reference to potential routes of infection associated with the dialysis catheter. Peritonitis was randomly distributed among the patients, and the change of keeping free of peritonitis declined exponentially with time. The main factor determining the individual number of episodes was the total space of time, in which a patient had been wearing a dialysis catheter, whereas the number of catheter disconnections played no significant role. A relative preponderance of cases due to Enterobacteriaceae was noted within the first week after catheter implantation. In contrast with this, peritonitis with skin microorganisms was not associated with the implantation of catheters.
Insights
The duration of dialysis catheter use is the primary driver of infectious peritonitis risk in patients undergoing intermittent peritoneal dialysis. Catheter disconnections do not significantly impact peritonitis occurrence.
Area of Science:
- Nephrology
- Infectious Diseases
- Medical Devices
Background:
- Peritonitis is a serious complication for patients on peritoneal dialysis.
- Dialysis catheters are a potential source of infection.
- Understanding infection routes is crucial for patient management.
Purpose of the Study:
- To analyze infectious peritonitis episodes in patients on intermittent peritoneal dialysis.
- To identify risk factors for peritonitis, particularly those related to the dialysis catheter.
- To investigate the relationship between catheter dwell time and infection rates.
Main Methods:
- Retrospective analysis of 118 peritonitis episodes in 156 patients over 5 years.
- Focus on potential infection routes linked to the peritoneal dialysis catheter.
- Statistical evaluation of factors like catheter dwell time and disconnections.
Main Results:
- Peritonitis risk declined exponentially over time.
- Prolonged dialysis catheter dwell time was the main factor increasing peritonitis episodes.
- Catheter disconnections showed no significant role in peritonitis incidence.
- Enterobacteriaceae infections were more common within the first week post-catheter implantation.
- Skin microorganism-related peritonitis was not associated with initial catheter implantation.
Conclusions:
- The duration of dialysis catheter use is a critical determinant of peritonitis risk.
- Early peritonitis may be linked to Enterobacteriaceae, while later infections might involve skin flora.
- Strategies to minimize catheter dwell time could reduce peritonitis incidence.