Pre-school neurocognitive and functional outcomes after liver transplant in children with early onset urea cycle disorders, maple syrup urine disease, and propionic acidemia: An inception cohort matched-comparison study

JIMD Reports
Shailly Jain-GhaiWestern Canadian Complex Pediatric Therapies Follow‐up Group

Abstract

Urea cycle disorders (UCD) and organic acid disorders classically present in the neonatal period. In those who survive, developmental delay is common with continued risk of regression. Liver transplantation improves the biochemical abnormality and patient survival is good. We report the neurocognitive and functional outcomes post-transplant for nine UCD, three maple syrup urine disease, and one propionic acidemia patient. Thirteen inborn errors of metabolism (IEM) patients were individually one-to-two matched to 26 non-IEM patients. All patients received liver transplant. Wilcoxon rank sum test was used to compare full-scale intelligence-quotient (FSIQ) and Adaptive Behavior Assessment System-II General Adaptive Composite (GAC) at age 4.5 years. Dichotomous outcomes were reported as percentages. FSIQ and GAC median [IQR] was 75 [54, 82.5] and 62.0 [47.5, 83] in IEM compared with 94.5 [79.8, 103.5] and 88.0 [74.3, 97.5] in matched patients (P-value <.001), respectively. Of IEM patients, 6 (46%) had intellectual disability (FSIQ and GAC <70), 5 (39%) had autism spectrum disorder, and 1/13 (8%) had cerebral palsy, compared to 1/26 (4%), 0, 0, and 0% of matched patients, respectively. In the subgroup of nine with UCDs, FSIQ (64[54,...Continue Reading

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Citations

Jun 22, 2021·The Journal of Pediatrics·Caroline B EwingJames E Squires
Jul 8, 2021·Journal of Inherited Metabolic Disease·Jun KidoKimitoshi Nakamura

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