Recovery from Severe Arsenic-Induced Peripheral Neuropathy with 2,3-Dimercapto-l-propanesulphonic Acid

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Abstract
A 33-year-old female with a 1.5-year history of multisystem illness was diagnosed with arsenic poisoning. Twenty-four-hour urine arsenic was 1030 microg/dL (normal 0-99) and root hair arsenic was 130 microg/g (normal 0-3). Despite treatment with succimer meso-2,3-dimercaptosuccinic acid, her neuropathy progressed to ventilator dependence and quadriplegia. Subsequent intravenous treatment with 2,3-dimercapto-1-propanesulfonic acid sodium salt was associated with arsenic diuresis, marked neuropathic improvement, and extubation. At 1-year follow-up, neuropathy was limited to mild distal lower extremity weakness and sensory loss. The use of 2,3-dimercapto-1-propanesulphonic acid in the treatment of severe arsenic neuropathy was associated with increased urinary elimination of arsenic and dramatic clinical recovery.

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