Publication date: Available online 9 February 2017
Source:Brain Stimulation
Author(s): Bettina H. Bewernick, Sarah Kayser, Sabrina M. Gippert, Christina Switala, Volker A. Coenen, Thomas E. Schlaepfer
BackgroundDeep brain stimulation (DBS) of the supero-lateral branch of the medial forebrain bundle (slMFB) in treatment-resistant depression (TRD) is associated with acute antidepressant effects.ObjectiveLong-term clinical effects including changes in quality of life, side effects and cognition as well as long-term data covering four years are assessed.MethodsEight TRD patients were treated with DBS bilateral to the slMFB. Primary outcome measure was a 50% reduction in Montgomery-Åsberg Depression Rating Scale (MADRS) (response) and remission (MADRS <10) at 12 months compared to baseline. Secondary measures were anxiety, general functioning, quality of life, safety and cognition assessed for 4 years. Data is reported as conventional endpoint-analysis and as area under the curve (AUC) timeline analysis.ResultsSix of eight patients (75%) were responders at 12 months, four patients reached remission. Long-term results revealed a stable effect up to four years. Antidepressant efficacy was also reflected in the global assessment of functioning. Main side effect was strabismus at higher stimulation currents. No change in cognition was identified. AUC analysis revealed a significant reduction in depression for 7/8 patients in most months.ConclusionsLong-term results of slMFB-DBS suggest acute and sustained antidepressant effect; timeline analysis may be an alternative method reflecting patient´s overall gain throughout the study. Being able to induce a rapid and robust antidepressant effect even in a small, sample of TRD patients without significant psychiatric comorbidity, render the slMFB an attractive target for future studies.
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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
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Πέμπτη 9 Φεβρουαρίου 2017
Deep Brain Stimulation to the Medial Forebrain Bundle for Depression- Long-term Outcomes and a Novel Data Analysis Strategy
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