title: Ocular tilt reaction as a delayed complication of deep brain stimulation for Parkinson disease.
abstract: A 57-year-old-man treated with deep brain stimulation (DBS) of both subthalamic nuclei for advanced Parkinson disease developed a brain hemorrhage near the site of one of the DBS electrodes 9 months after implantation. The hemorrhage caused vertical diplopia from skew deviation. Examination also disclosed evidence of ipsiversive binocular torsion and a right head tilt, constituting an ocular tilt reaction (OTR). Fourteen months later, he was still symptomatic from diplopia. An OTR has not previously been reported as a delayed complication of DBS.
authors: Institut Clínic d'Oftalmologìa, Servicio de Neurocirugía, Hospital Clínic i Provincial, Barcelona, Spain. san.ortiz@gmail.com
authors: Santiago
authors: S
authors: Ortiz-Pérez
authors: Bernardo
authors: B
authors: Sánchez-Dalmau
authors: Juan
authors: J
authors: Molina
authors: Alfredo
authors: A
authors: Adán
authors: Santiago
authors: S
authors: Candela
authors: Jordi
authors: J
authors: Rumià
mesh_terms: D046690:Deep Brain Stimulation / Q000009:adverse effects*; D004172:Diplopia / Q000209:etiology*; D006801:Humans; D020300:Intracranial Hemorrhages / Q000209:etiology; D008297:Male; D008875:Middle Aged; D015835:Ocular Motility Disorders / Q000209:etiology*; D010300:Parkinson Disease / Q000628:therapy*; D004856:Postural Balance / Q000502:physiology; D020531:Subthalamic Nucleus / Q000601:surgery*