title: Effects of Cerebellothalamic Tractotomy on Cognitive and Emotional Functioning in Essential Tremor: A Preliminary Study in 5 Essential Tremor Patients.
abstract: Background: Subthalamic stereotactic interventions have recently caught renewed interest as a treatment for essential tremor (ET). However, it is not clear whether these interventions are associated with neurocognitive, mood or personality changes. Objective: To investigate neurocognition, neuropsychiatric functions and personality variables in patients with ET and to explore the neurocognitive and neuropsychiatric effects of cerebellothalamic tractotomy (CTT), a form of subthalamotomy. Methods: In our study, we investigated cognitive functions, frontal functions, mood and personality variables in 5 patients with intractable ET. Patients were tested before and 3 months after surgery using neuropsychological tests, clinical scales for depression, anxiety, anger regulation and a personality test. Results: Before surgery, ET patients showed normal neurocognitive function, a slightly elevated frontal lobe score in the dimensions mental control and memory, without being indicative of a frontal lesion, and no elevated depression or anxiety scores compared to norm values. After surgery, there was no change in neurocognitive function and no increase in depression or anxiety scores. Conclusion: In this exploratory study on 5 ET patients, CTT was not associated with alterations of mood or neurocognitive functions. © 2015 S. Karger AG, Basel.
authors.affiliation: Department of Psychiatry and Psychotherapy, University Hospital Zurich, Zurich, Switzerland.
authors.forename: Katharina
authors.initials: K
authors.lastname: Ledermann
authors.forename: Daniel
authors.initials: D
authors.lastname: Jeanmonod
authors.forename: Salome
authors.initials: S
authors.lastname: McAleese
authors.forename: Christoph
authors.initials: C
authors.lastname: Aufenberg
authors.forename: Klaus
authors.initials: K
authors.lastname: Opwis
authors.forename: Chantal
authors.initials: C
authors.lastname: Martin-Soelch