Refractory symptoms in Parkinson disease show good response to deep brain 
stimulation (DBS). This procedure improves United Parkinson's Disease Rating 
Scale scores and reduces dyskinesias, whereas speech and swallowing dysfunction 
typically do not improve and may even worsen. Rarely, DBS can cause 
idiosyncratic dystonias of muscle groups, including those of the neck and 
throat. The authors describe a patient experiencing stridor and dysphagia with 
confirmed pulmonary restriction and aspiration following subthalamic nucleus 
deep brain stimulator adjustment, with a resolution of symptoms and signs when 
the stimulator was switched off.