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Effect of repeated peritonitis on peritoneal membrane function in children on chronic peritoneal dialysis
Hsin-Hui Wang1, Ching-Yuang Lin
1Department of Pediatrics, Taipei Veterans General Hospital, Taiwan, ROC.
Insights
Frequent peritonitis episodes in children undergoing chronic peritoneal dialysis (CPD) significantly impair peritoneal membrane function. This study highlights the negative impact of recurrent peritonitis on solute transport, underscoring the need for effective prevention strategies in pediatric dialysis.
Area of Science:
- Nephrology
- Pediatric Dialysis
- Peritoneal Membrane Physiology
Background:
- Chronic peritoneal dialysis (CPD) is a primary renal replacement therapy for children.
- Preserving peritoneal membrane function is crucial for long-term dialysis success.
- Peritonitis and exposure to non-biocompatible solutions are key factors in membrane dysfunction.
Purpose of the Study:
- To investigate the association between peritonitis episodes and peritoneal membrane solute transport characteristics in pediatric patients.
- To elucidate the impact of recurrent peritonitis on the long-term function of the peritoneal membrane.
Main Methods:
- A retrospective study included 32 pediatric patients on CPD from 1996-2000.
- Patients were categorized into high (HPO, ≥5 episodes/year) and low (LPO, ≤1 episode/year) peritonitis groups.
- Peritoneal equilibration tests (PET) were used to assess peritoneal membrane solute transport function.
Main Results:
- The high peritonitis group (HPO) showed a significant decrease in peritoneal solute transport (AD/P) compared to the low peritonitis group (LPO).
- A significant correlation was found between recurrent peritonitis and PET deterioration (p < 0.05).
- The relative risk of PET deterioration due to frequent peritonitis was 2.63.
Conclusions:
- Frequent peritonitis episodes in children undergoing CPD lead to significant declines in peritoneal solute transport.
- Recurrent peritonitis is associated with deteriorating peritoneal membrane function over time.
- Effective peritonitis management is critical for maintaining long-term peritoneal dialysis efficacy in pediatric patients.
Background:
Chronic peritoneal dialysis (CPD) is the most commonly used method of pediatric dialysis. The preservation of peritoneal membrane function is essential for successful peritoneal dialysis. Two main factors are responsible for long-term loss of membrane function. Peritonitis, the major complication of CAPD, can be life-threatening and lead to more rapid failure of the technique. The other factor is continuous exposure of peritoneal membrane to bioincompatible dialysis solutions. To investigate the role of repeated peritonitis on peritoneal membrane function, we performed a retrospective study to elucidate the association between peritonitis episodes and peritoneal membrane solute transport characteristics.
Methods:
From 1996-2000, 32 pediatric peritoneal dialysis patients were included in this study. According to the peritonitis occurrence frequency, 8 patients were divided into HPO group (peritonitis occurrence rate > or = 5 times/year), and 24 patients were divided into LPO group (peritonitis occurrence rate < or = 1 time/year). The mean age of study patients was 13.95 +/- 5.27 years. The peritoneal equilibration test was performed to evaluate the peritoneal membrane dialyzing function.
Results:
The mean duration of peritoneal dialysis was 3.31 +/- 1.08 years. The change of peritoneal solute transport (AD/P), computed by subtraction of 4-hour D/P at baseline PET study from that at the last follow-up PET study, showed significant difference (p < 0.05) between HPO (-0.234 + 0.074) and LPO (-0.040 +/- 0.079) groups of children. There was also a significant correlation between repeated peritonitis occurrence and PET deterioration(p < 0.05). The relative risk was 2.63.
Conclusions:
Children with frequent peritonitis occurrence have significant decreasing peritoneal solute transport and decreasing PET scaling in follow-up period.
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