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Transplantation. 2001 Aug 15;72(3):428-32.

Primary hyperoxaluria type 1: improved outcome with timely liver transplantation: a single-center report of 36 children.

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  • 1Pediatric Gastroenterology and Nephrology Units, Schneider Children's Medical Center, Petach-Tikva, 49100, Israel.

Abstract

BACKGROUND:

The appropriate use of liver transplantation in children with type-1 primary hyperoxaluria (PH-1) is not well established. We reviewed our experience with 36 children with PH-1, including 12 who underwent liver transplantation.

PATIENTS AND METHODS:

From 1989-1998, 36 children from 10 families in northern Israel were diagnosed with PH-1. Eight children presented with renal failure; seven of these eight had the severe infantile form of the disease. One child was treated with kidney transplantation alone. Combined liver-kidney transplantation has been performed in nine children and preemptive liver transplantation in three children. A review of the patients' charts for the following parameters was performed: age, clinical signs, and renal sonographic findings at diagnosis, age at onset of dialysis, and current status. Type of transplant, pre- and posttransplant urine oxalate excretion, current renal function, survival, and complications were recorded in liver recipients.

RESULTS:

Of the 23 nontransplanted children, 9 died of complications related to severe systemic oxalosis and 14 are alive (mean follow-up, 7.4 years), including 2 who are candidates for transplantation. The child who underwent only kidney transplantation died of unrelated causes. Of the 12 liver recipients, 2 died within the first 3 months posttransplant and another child underwent retransplantation due to hepatic arterial thrombosis. At intervals after transplant ranging from 6-54 months, 10 recipients are alive (7 of the 9 recipients of combined liver-kidney transplants and all 3 recipients of preemptive liver transplants). Mean GFR in the 10 survivors is 77 ml/min/m2. In 9 of these 10, daily urinary oxalate excretion normalized. Renal function has improved (mean GFR 86 vs. 58 ml/min/m2) but renal oxalate deposits remain in the three recipients of isolated liver grafts.

CONCLUSIONS:

Our decade-long experience with children with PH-1 supports strategies for early diagnosis and timely liver transplantation. Preemptive isolated liver transplantation should be considered in children who develop the disease during infancy or in those with slowly progressive disease when significant symptoms develop. Combined liver-kidney transplantation is suggested for children with end-stage renal disease.

PMID:
11502971
[PubMed - indexed for MEDLINE]
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