Abstract:Nitrous oxide (N2O) abuse induces vitamin B12 deficiency, resulting in complications in the central and peripheral nervous systems. Some cases related to subacute combined degeneration or myeloneuropathy after N2O abuse have been reported. However, isolated peripheral polyneuropathy without spinal cord involvement has rarely been reported in South Korea. We describe a 29-year-old woman who had inhaled “happy balloons” daily (1,000 balloons/day) for recreational purposes over 3-month period, and presented with … Show more
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