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Peritoneal dialysis tailored to pediatric needs
C P Schmitt1, A Zaloszyc, B Schaefer
1Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, INF 430, 69120 Heidelberg, Germany.
Insights
Pediatric peritoneal dialysis (PD) requires tailored approaches due to rapid growth and body composition changes. Adapted PD strategies optimize dialysis efficiency and safety in children, addressing challenges like hypotension and leaks.
Area of Science:
- Pediatric Nephrology
- Renal Replacement Therapy
- Dialysis Techniques
Background:
- Children undergoing peritoneal dialysis (PD) have unique physiological needs.
- Rapid growth (infancy, puberty) requires positive calcium balance and changes in body composition.
- Infants face risks of sodium loss and hypotension due to high water content and ultrafiltration demands.
Purpose of the Study:
- To highlight essential pediatric considerations for effective peritoneal dialysis.
- To present an adapted PD concept for optimizing treatment in children.
- To address challenges such as tissue fragility, hernias, and dialysate leaks.
Main Methods:
- Repeated peritoneal equilibration tests to individualize dwell times.
- Intraperitoneal pressure measurements for optimized fill volumes.
- Implementation of an adapted PD strategy combining short/low-volume and long/high-volume dwells within a single session.
Main Results:
- Optimized dwell volumes increase dialysis efficiency while mitigating risks of hernias, leaks, and retrofiltration.
- Adapted PD aims to balance ultrafiltration and purification needs.
- Low glucose degradation product PD solutions are recommended but not universally available.
Conclusions:
- Tailored peritoneal dialysis strategies are crucial for pediatric patients.
- Adapted PD offers a promising approach to enhance treatment efficacy and safety in children.
- Further efforts are needed to ensure availability of optimal PD solutions globally.
Abstract:
Consideration of specific pediatric aspects is essential to achieve adequate peritoneal dialysis (PD) treatment in children. These are first of all the rapid growth, in particular during infancy and puberty, which must be accompanied by a positive calcium balance, and the age dependent changes in body composition. The high total body water content and the high ultrafiltration rates required in anuric infants for adequate nutrition predispose to overshooting convective sodium losses and severe hypotension. Tissue fragility and rapid increases in intraabdominal fat mass predispose to hernia and dialysate leaks. Peritoneal equilibration tests should repeatedly been performed to optimize individual dwell time. Intraperitoneal pressure measurements give an objective measure of intraperitoneal filling, which allow for an optimized dwell volume, that is, increased dialysis efficiency without increasing the risk of hernias, leaks, and retrofiltration. We present the concept of adapted PD, that is, the combination of short dwells with low fill volume to promote ultrafiltration and long dwells with a high fill volume to improve purification within one PD session. The use of PD solutions with low glucose degradation product content is recommended in children, but unfortunately still not feasible in many countries.
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