Acute cognitive disorder as the initial manifestation of nitrous oxide abusing: a case report

Abstract

Nitrous oxide (N2O) is a colorless, odorless gas used as an anesthetic and analgesic. It is also abused as a recreational drug, and such abuse is associated with neurological disorders and psychiatric complications such as myelopathy and, rarely, cognitive impairment. Its abuse has not been associated with acute cognitive decline. Here, we report a young girl who presented with acute cognitive impairment after excessive recreational inhalation of nitrous oxide and who recovered completely after vitamin B12 supplementation. We conclude that nitrous oxide abuse can cause acute cognitive impairment, and that this diagnosis should be considered if a patient initially presents with acute cognitive decline.

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Funding

This report supported by the Resource Collection and Standardized Diagnosis and Treatment Platform for Neurogenetic and Neurodegeneration Disease, Sichuan Science and Technology Department Platform Construction Project (19PTDJ0042).

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Correspondence to Yanming Xu.

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The informed consent was obtained from the patient and there was no potential conflict of interest in it. Meanwhile, it was not a research involving human participants and/or animals.

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Shen, Q., Lu, H., Wang, H. et al. Acute cognitive disorder as the initial manifestation of nitrous oxide abusing: a case report. Neurol Sci 42, 755–756 (2021). https://doi.org/10.1007/s10072-019-04183-w

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Keywords

  • Nitrous oxide
  • Abusing
  • Cognitive disorders