Neuromuscular Complications of Heroin Addiction.

Abstract
This study delineates five categories of neuromyopathic disorders that follow the parenteral use of heroin-adulterant mixtures. Clinical and electrodiagnostic studies documented these sequels in our patient sample. Muscle biopsies, with routine and histochemical staining, plus serial serum enzyme levels were obtained for those patients with primarily muscular involvement. The complications observed, in decreasing order of frequency, included the following: mononeuropathy, which was usually unrelated to trauma and remote from site of injection but occasionally followed needle trauma; plexitis, which in our cases showed a brachial predilection and was often associated with severe neuritic pain; polyneuropathy was observed as an acute,

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