Effects of bilateral subthalamic stimulation on cognitive function in Parkinson disease

Montse Alegret, Carme Junqué, Francesc Valldeoriola, Pere Vendrell, Manuela Pilleri, Jordi Rumià, Eduardo Tolosa

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Chronic bilateral subthalamic deep brain stimulation (STN-DBS) is known to improve motor function in patients with Parkinson disease (PD). However, the possible effects of STN-DBS on neuropsychological functions have been studied less. Objective: To investigate the effects of STN-DBS on neuropsychological functions in PD. Design: Before-after trial. Patients and Methods: Fifteen consecutive patients were assessed before and 3 months after implantation of stimulators for STN-DBS (postsurgical assessment with the stimulators switched on). Both assessments were performed with patients in a drug-free condition. The neuropsychological battery consisted of tests measuring memory and visuospatial and frontal functions. Results: The comparison between presurgical and postsurgical performance showed a moderate deterioration in verbal memory and prefrontal and visuospatial functions, and a moderate improvement in a prefrontal task and obsessive-compulsive traits. The motor state improved in all patients. Conclusion: Therapy with STN-DBS improves motor symptoms in PD without any clinically relevant neuropsychological deterioration.

Original languageEnglish
Pages (from-to)1223-1227
Number of pages5
JournalArchives of Neurology
Volume58
Issue number8
Publication statusPublished - 2001

ASJC Scopus subject areas

  • Neuroscience(all)

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