title: Effect of subthalamic deep brain stimulation on non-motor fluctuations in Parkinson's disease.
abstract: The non-motor consequences of subthalamic stimulation are largely questioned. Cognition, motivation, anxiety, depression and even occurrence of suicides have been considered as a potential consequence of the surgical intervention. Non-motor fluctuations are present in all the patients with motor fluctuations and may sometimes be even more invalidating. Interestingly, subthalamic deep brain stimulation alleviates non-motor fluctuations allowing strikingly successful effects on sensory, dysautonomic and cognitive fluctuations while psychic fluctuations respond less consistently to this treatment. Nevertheless, severe mood fluctuations, oscillating from Off dysphoria to ON hypomania, are frequently associated with addictive behaviors and improve dramatically after subthalamic stimulation. This may be a further argument to support the indication of surgery for these patients.
authors.affiliation: Service de Neurologie et Pathologie du Mouvement, Assistance Publique-Hôpitaux de Marseille et Aix-Marseille Universite, Hôpital de la Timone, 13385, Marseille cedex 05, France. jean-philippe.azulay@ap-hm.fr
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Azulay
authors.forename: Tatiana
authors.initials: T
authors.lastname: Witjas
authors.forename: Alexandre
authors.initials: A
authors.lastname: Eusebio
mesh_terms: D001342:Autonomic Nervous System Diseases / Q000150:complications / Q000628:therapy*; D046690:Deep Brain Stimulation / Q000379:methods*; D003863:Depression / Q000150:complications / Q000628:therapy*; D006801:Humans; D059408:Pain Management; D010300:Parkinson Disease / Q000150:complications / Q000503:physiopathology / Q000628:therapy*; D020531:Subthalamic Nucleus / Q000503:physiopathology*