Diagnosis and management of primary hyperoxaluria type 1 in infancy

Area of Science:

• Nephrology
• Pediatric Gastroenterology
• Transplantation Medicine

Background:

• Primary hyperoxaluria type 1 is a rare genetic disorder leading to severe kidney damage.
• End-stage renal disease (ESRD) in infants presents significant management challenges.
• Early diagnosis and intervention are crucial for improving outcomes in pediatric ESRD.

Observation:

• A 6-month-old infant presented with failure to thrive due to ESRD caused by primary hyperoxaluria type 1.
• The infant required a combined daily hemodialysis and peritoneal dialysis regimen to manage oxalate burden.
• Medical management included pyridoxine, hydration, and nutritional support via an enteral feeding tube.

Findings:

• The infant underwent a combined liver/kidney transplantation at one year of age.
• Intra- and post-operative hemodialysis were employed to prevent oxalate deposition in transplanted organs.
• Post-operative complications included gross hematuria and increased hyperoxaluria, necessitating increased hydration and thiazide diuretics.

Implications:

• This case highlights the complexity of managing infants with primary hyperoxaluria type 1, both pre- and post-transplant.
• Combined dialysis modalities can help reduce oxalate burden before transplantation.
• Aggressive post-transplant monitoring and management are essential to address complications and ensure graft survival.