Nitrous oxide‐induced myeloneuropathy

Nitrous oxide misuse is a recognized issue worldwide. Prolonged misuse inactivates vitamin B12, causing a myeloneuropathy.Twenty patients presenting between 2016 and 2020 to tertiary hospitals in Sydney with myeloneuropathy due to nitrous oxide misuse were reviewed.The average age was 24 years, and mean canister consumption was 148 per day for 9 months. At presentation, paresthesias and gait unsteadiness were common, and seven patients were...