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Critical appraisal of topic Maarten van Schijndel , 2-2-2011

Deep brain stimulation of the nucleus accumbens for treatment-refractory obsessive-compulsive disorder . Denys D. Mantione M. et al. Arch Gen Psychiatry. 2010 Oct;67(10):1061-8. Critical appraisal of topic Maarten van Schijndel , 2-2-2011. Inleiding.

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Critical appraisal of topic Maarten van Schijndel , 2-2-2011

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  1. Deep brain stimulation of the nucleus accumbens for treatment-refractory obsessive-compulsive disorder. Denys D. Mantione M. et al. Arch Gen Psychiatry. 2010 Oct;67(10):1061-8. Critical appraisal of topic Maarten van Schijndel, 2-2-2011

  2. Inleiding "Obsessive-Compulsive Disorder"[Mesh] AND "Deep Brain Stimulation"[Mesh], limits: RCT/clinical trial (7 resultaten)MDR angststoornissen (eerste rev. 2009) • Non-responders Psychochirurgie: deep brain stimulation wordtbeschouwdalsexperimenteel • Nucleus accumbens & beloning/verslaving Zie ‘Dysfunctional Reward Circuitry in Obsessive-Compulsive Disorder. Figee M et al Biol. Psychiatry 2011 epub’

  3. Methoden (1) • Inclusie • Poliklinische patiënten m/v 18-65 jaar met een primaire OCD • Y-BOCS >= 28, >= 5 jaar OCD klachten, serieuze beperking volgens ‘C-criterium’ (GAF <= 45) • Therapieresistentie SSRI / clomi / SSRI + AP / CGT • Exclusie • Klinisch significante comorbide psychiatrische stoornissen • Klinisch significante / onstabiele neurologische of andere medische ziekte

  4. Methoden (studieopzet, statistiek) CBT 12 month maintenance 2-wk evaluation 8 month open 1 month double blind, sham-controlled Sample size o.b.v. geneesmiddelenonderzoek en placebo ~ 0Gepaarde t-test Primaire uitkomstmaat Y-BOCS in open phase Klinische karakteristieken en responder rates in double blind phase Regressieanalyse om te controleren voor periodieke effecten

  5. Resultaten Open phase Gemiddelde ↓YBOCS 15,7 (CI 9,9-21,5) = 46% 9 patiënten hadden tenminste 35% reductie Double-blind, sham-controlled phase Gemiddelde ↓YBOCS 8,3 = 25% (p=0,004) Maintenance phase Behouden winst

  6. Discussie Resultaten (↓YBOCS) consistent met andere RCT’s Voorbijgaande hypomanie frequent gerapporteerd Specifieke volgorde in verdwijnen symptomatologie – vermijding niet Type symptomen gerelateerd aan nonrespons Voordeel DBS = aanpasbaarheid en gerichte stimulatie Dubbelblinde periode kort Beperkingen Y-BOCS voor deze groep

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