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Successful Management of Refractory Intracranial Hypertension from Acute Hyperammonemic Encephalopathy in a Woman with Ornithine Transcarbamylase Deficiency

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Abstract

Background

Ornithine transcarbamylase deficiency (OTCD) is the most common of the urea cycle disorders and results in an accumulation of ammonia and its metabolites. Excess ammonia in the brain is metabolized to glutamine, which increases intracellular osmolarity and contributes to cytotoxic edema.

Methods

We report a case of a woman heterozygous for OTCD who developed acute hyperammonemic encephalopathy and increased intracranial pressure (ICP).

Results

Despite hemodialysis, protein restriction, and administration of pharmacologic nitrogen scavengers, she developed progressive cerebral edema and increased ICP that was refractory to maximal medical management. She underwent a bifrontal decompressive craniectomy resulting in resolution of her intracranial hypertension.

Conclusion

Aggressive multimodality management of the patient coupled with bifrontal decompressive hemicraniectomy was a life-saving measure, offering the patient a reasonable outcome. At 6 month follow-up she had moderate disability on the Glasgow Outcome Score associated with cognitive difficulties.

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Authors and Affiliations

  1. Department of Neurology, Hospital of the University of Pennsylvania, 3400 Spruce St, Philadelphia, PA, 19104, USA

    Linda C. Wendell, Amir Khan, Jonathan Raser, Soojin Park & Joshua M. Levine

  2. Department of Neurosurgery, Hospital of the University of Pennsylvania, 3400 Spruce St, Philadelphia, PA, 19104, USA

    Shih-Shan Lang, Neil Malhotra, Peter LeRoux, Soojin Park & Joshua M. Levine

  3. Department of Anesthesiology and Critical Care, Hospital of the University of Pennsylvania, 3400 Spruce St, Philadelphia, PA, 19104, USA

    W. Andrew Kofke, Soojin Park & Joshua M. Levine

Authors
  1. Linda C. Wendell
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  2. Amir Khan
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  3. Jonathan Raser
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  4. Shih-Shan Lang
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  5. Neil Malhotra
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  6. W. Andrew Kofke
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  7. Peter LeRoux
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  8. Soojin Park
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  9. Joshua M. Levine
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Corresponding authors

Correspondence to Linda C. Wendell or Joshua M. Levine.

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Wendell, L.C., Khan, A., Raser, J. et al. Successful Management of Refractory Intracranial Hypertension from Acute Hyperammonemic Encephalopathy in a Woman with Ornithine Transcarbamylase Deficiency. Neurocrit Care 13, 113–117 (2010). https://doi.org/10.1007/s12028-010-9361-2

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  • DOI: https://doi.org/10.1007/s12028-010-9361-2

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