Unusual biochemical and clinical features in a girl with ornithine transcarbamylase deficiency

A girl, ultimately diagnosed as having profound ornithine transcarbamylase (OTC) deficiency, presented as a neonate with feeding intolerance, irritability, and seizures without concurrent hyperammonemia. Developing normally until ten months of age, the girl subsequently experienced two episodes of h...

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Veröffentlicht in:Pediatric neurology 1986, Vol.2 (1), p.51-53
Hauptverfasser: Lacey, Daniel J., Duffner, Patricia K., Cohen, Michael E., Mosovich, Luis
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container_title Pediatric neurology
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creator Lacey, Daniel J.
Duffner, Patricia K.
Cohen, Michael E.
Mosovich, Luis
description A girl, ultimately diagnosed as having profound ornithine transcarbamylase (OTC) deficiency, presented as a neonate with feeding intolerance, irritability, and seizures without concurrent hyperammonemia. Developing normally until ten months of age, the girl subsequently experienced two episodes of hyperammonemia, which were associated with focal seizures and residual hemiparesis. She continued to have profound neurologic impairment and seizures and died at 26 months of age, despite appropriate dietary protein restriction, sodium benzoate, and arginine supplementation. Symptomatic OTC deficiency has not been previously reported unassociated with hyperammonemia. The recurrent cerebrovascular episodes are distinctly uncommon in patients with urea cycle enzymopathies.
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subjects Amino Acid Metabolism, Inborn Errors - diagnosis
Amino Acid Metabolism, Inborn Errors - enzymology
Ammonia - blood
Brain Diseases, Metabolic - diagnosis
Brain Diseases, Metabolic - enzymology
Child, Preschool
Female
Follow-Up Studies
Humans
Infant
Infant, Newborn
Ornithine Carbamoyltransferase Deficiency Disease
Tomography, X-Ray Computed
title Unusual biochemical and clinical features in a girl with ornithine transcarbamylase deficiency
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