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Brachial Neuritis After Botulinum Toxin Injections for Cervical Dystonia: A Need for a Reappraisal?
Ilaria Cani1, Anna Latorre2,3, Carla Cordivari2,4
1IRCCS Istituto delle Scienze Neurologiche di Bologna Bologna BO Italy.
Background:
Brachial neuritis has previously been described as a rare occurrence in patients receiving botulinum toxin for cervical or writing/focal arm dystonia.
Methods:
We report four cases of patients with a long history of cervical dystonia treated with botulinum toxin injections.
Results:
All patients developed pain and muscular weakness around the shoulder, with EMG studies suggesting brachial neuritis.
Conclusions:
In the context of these observations, we discuss the question of an association between brachial neuritis and botulinum toxin treatment.
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