Intraperitoneal pressure and hernias in children on peritoneal dialysis

Area of Science:

• Nephrology
• Pediatric Surgery
• Medical Engineering

Background:

• Abdominal wall hernias are a recognized complication in patients on continuous ambulatory peritoneal dialysis (CAPD).
• Hernias occur more frequently in children than adults undergoing CAPD.
• The role of intraperitoneal pressure (IPP) in pediatric CAPD-related hernias requires further investigation.

Purpose of the Study:

• To determine the influence of intraperitoneal pressure (IPP) on the development of abdominal wall hernias in children on CAPD.
• To compare IPP between pediatric and adult patients undergoing CAPD.
• To identify potential factors contributing to hernia prevalence in pediatric CAPD.

Main Methods:

• Studied 14 children and 10 adults on CAPD.
• Measured intraperitoneal pressure (IPP) using a dialysate column in the dialysis line.
• Recorded IPP with patients in a supine position, measuring at inspiration and expiration.

Main Results:

• Children with hernias exhibited significantly higher IPP (10.9 +/- 2.6 cm H2O) compared to those without hernias (8.1 +/- 2.6 cm H2O).
• Adults demonstrated a significantly higher mean IPP (13.8 +/- 2.8 cm H2O) than children (9.5 +/- 2.9 cm H2O).
• Instilled dialysate volume was comparable between pediatric groups with and without hernias.

Conclusions:

• Intraperitoneal pressure (IPP) is a significant factor affecting hernia prevalence in children on CAPD.
• Lower IPP in children compared to adults may indicate anatomical differences contributing to hernia development.
• Abdominal wall weakness, in conjunction with IPP, likely influences hernia occurrence in pediatric CAPD patients.