title: Painful cervical dystonia triggered by the extension wire of a deep brain stimulator.
abstract: Deep brain stimulation (DBS) can be complicated by adverse events, which are generally classified as surgical-hardware or stimulation-related. Here we report the onset of a painful cervical dystonia probably triggered by the extension wire of a subthalamic nucleus (STN)-DBS device in a woman suffering from advanced Parkinson's disease (PD). Two months after implantation of the STN-DBS device, our patient developed a painful cervical dystonia, which was not responsive to neurostimulation or to medication. No sign of infections or fibrosis was detected. A patch test with the components of the device was performed, revealing no hypersensibility. The patient was referred back to surgery to reposition the pulse generator in the contralateral subclavian region. A deeper channeling of the wire extensions produced a complete remission of the painful dystonia.
authors.affiliation: Department of Neurology, INSPE, San Raffaele Scientific Institute, Via Olgettina 48, I-20132 Milan, Italy. spagnolo.francesca@hsr.it
authors.forename: F
authors.initials: F
authors.lastname: Spagnolo
authors.forename: P
authors.initials: P
authors.lastname: Picozzi
authors.forename: A
authors.initials: A
authors.lastname: Franzin
authors.forename: V
authors.initials: V
authors.lastname: Martinelli
authors.forename: G
authors.initials: G
authors.lastname: Comi
authors.forename: M A
authors.initials: MA
authors.lastname: Volonte
mesh_terms: D000368:Aged; D046690:Deep Brain Stimulation / Q000009:adverse effects* / Q000295:instrumentation*; D004567:Electrodes, Implanted / Q000009:adverse effects*; D004868:Equipment Failure; D005260:Female; D006801:Humans; D010146:Pain / Q000209:etiology; D010300:Parkinson Disease / Q000601:surgery / Q000628:therapy; D012086:Reoperation; D020531:Subthalamic Nucleus / Q000293:injuries; D014103:Torticollis / Q000209:etiology*