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Deep Brain Stimulation Obsessive Compulsive Disorder

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https://www.readbyqxmd.com/read/28195571/electrical-stimulation-of-the-bed-nucleus-of-the-stria-terminalis-reduces-anxiety-in-a-rat-model
#1
K Luyck, T Tambuyzer, M Deprez, J Rangarajan, B Nuttin, L Luyten
We recently showed that deep brain stimulation (DBS) in the bed nucleus of the stria terminalis (BST) reduces obsessions, compulsions and associated anxiety in patients suffering from severe, treatment-refractory obsessive-compulsive disorder. Here, we investigated the anxiolytic effects of electrical BST stimulation in a rat model of conditioned anxiety, unrelated to obsessions or compulsions. Two sets of stimulation parameters were evaluated. Using fixed settings at 100 Hz, 40 μs and 300 μA (Set A), we observed elevated freezing and startle levels, whereas stimulation at 130 Hz, 220 μs and individually tailored amplitudes (Set B) appeared to reduce freezing...
February 14, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28159909/the-organization-of-the-anterior-limb-of-the-internal-capsule-in-the-rat
#2
V Coizet, S R Heilbronner, C Carcenac, P Mailly, J Lehman, M Savasta, O David, J-M Deniau, H J Groenewegen, N Haber S
: Dysfunction of the orbitofrontal (OFC) and anterior cingulate (ACC) cortices has been linked with several psychiatric disorders, including obsessive-compulsive disorder, major depressive disorder, post-traumatic stress disorder, and addiction. These conditions are also associated with abnormalities in the anterior limb of the internal capsule, the white matter bundle carrying ascending and descending fibers from the OFC and ACC. Fruthermore, deep brain stimulation (DBS) for psychiatric disorders targets these fibers...
February 3, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28040671/decisional-impulsivity-and-the-associative-limbic-subthalamic-nucleus-in-obsessive-compulsive-disorder-stimulation-and-connectivity
#3
Valerie Voon, Fabien Droux, Laurel Morris, Stephan Chabardes, Thierry Bougerol, Olivier David, Paul Krack, Mircea Polosan
Why do we make hasty decisions for short-term gain? Rapid decision-making with limited accumulation of evidence and delay discounting are forms of decisional impulsivity. The subthalamic nucleus is implicated in inhibitory function but its role in decisional impulsivity is less well-understood. Here we assess decisional impulsivity in subjects with obsessive compulsive disorder who have undergone deep brain stimulation of the limbic and associative subthalamic nucleus. We show that stimulation of the subthalamic nucleus is causally implicated in increasing decisional impulsivity with less accumulation of evidence during probabilistic uncertainty and in enhancing delay discounting...
February 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27994542/the-retrograde-connections-and-anatomical-segregation-of-the-g%C3%A3-ttingen-minipig-nucleus-accumbens
#4
Anders C Meidahl, Dariusz Orlowski, Jens C H Sørensen, Carsten R Bjarkam
Nucleus accumbens (NAcc) has been implicated in several psychiatric disorders such as treatment resistant depression (TRD), and obsessive-compulsive disorder (OCD), and has been an ongoing experimental target for deep brain stimulation (DBS) in both rats and humans. In order to translate basic scientific results from rodents to the human setting a large animal model is needed to thoroughly study the effect of such therapeutic interventions. The aim of the study was, accordingly, to describe the basic anatomy of the Göttingen minipig NAcc and its retrograde connections...
2016: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/27930748/six-nine-year-follow-up-of-deep-brain-stimulation-for-obsessive-compulsive-disorder
#5
Sarah M Fayad, Andrew G Guzick, Adam M Reid, Dana M Mason, Agustina Bertone, Kelly D Foote, Michael S Okun, Wayne K Goodman, Herbert E Ward
OBJECTIVE: Deep brain stimulation (DBS) of the ventral capsule/ventral striatum (VC/VS) region has shown promise as a neurosurgical intervention for adults with severe treatment-refractory obsessive-compulsive disorder (OCD). Pilot studies have revealed improvement in obsessive-compulsive symptoms and secondary outcomes following DBS. We sought to establish the long-term safety and effectiveness of DBS of the VC/VS for adults with OCD. MATERIALS AND METHODS: A long term follow-up study (73-112 months) was conducted on the six patients who were enrolled in the original National Institute of Mental Health pilot study of DBS for OCD...
2016: PloS One
https://www.readbyqxmd.com/read/27923468/commentaries-on-subthalamic-deep-brain-stimulation-in-obsessive-compulsive-disorder-first-german-experience-and-future-outlook
#6
Stephan Chabardes, Paul Krack, Mircea Polosan
No abstract text is available yet for this article.
November 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27923467/subthalamic-deep-brain-stimulation-in-obsessive-compulsive-disorder-first-german-experience-and-future-outlook
#7
Lars Wojtecki, Saskia Elben, Julia Rübenach, Christian Hartmann, Jan Vesper, Alfons Schnitzler
No abstract text is available yet for this article.
November 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27891112/deep-brain-stimulation-for-tourette-s-syndrome-the-case-for-targeting-the-thalamic-centromedian-parafascicular-complex
#8
REVIEW
Paola Testini, Hoon-Ki Min, Asif Bashir, Kendall H Lee
Tourette's syndrome (TS) is a neurologic condition characterized by both motor and phonic tics and is typically associated with psychiatric comorbidities, including obsessive-compulsive disorder/behavior and attention-deficit hyperactivity disorder, and can be psychologically and socially debilitating. It is considered a disorder of the cortico-striato-thalamo-cortical circuitry, as suggested by pathophysiology studies and therapeutic options. Among these, deep brain stimulation (DBS) of the centromedian-parafascicular nucleus (CM-Pf) of the thalamus is emerging as a valuable treatment modality for patients affected by severe, treatment-resistant TS...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27783238/putting-the-pieces-together-in-gilles-de-la-tourette-syndrome-exploring-the-link-between-clinical-observations-and-the-biological-basis-of-dysfunction
#9
REVIEW
Rowshanak Hashemiyoon, Jens Kuhn, Veerle Visser-Vandewalle
Gilles de la Tourette syndrome is a complex, idiopathic neuropsychiatric disorder whose pathophysiological mechanisms have yet to be elucidated. It is phenotypically heterogeneous and manifests more often than not with both motor and behavioral impairment, although tics are its clinical hallmark. Tics themselves present with a complex profile as they characteristically wax and wane and are often preceded by premonitory somatosensory sensations to which it is said a tic is the response. Highly comorbid with obsessive-compulsive disorder and attention deficit-hyperactivity disorder, it is purported to be an epigenetic, neurodevelopmental spectrum disorder with a complex genetic profile...
January 2017: Brain Topography
https://www.readbyqxmd.com/read/27761641/impulse-control-behaviors-and-subthalamic-deep-brain-stimulation-in-parkinson-disease
#10
Aristide Merola, Alberto Romagnolo, Laura Rizzi, Mario Giorgio Rizzone, Maurizio Zibetti, Michele Lanotte, George Mandybur, Andrew P Duker, Alberto J Espay, Leonardo Lopiano
To determine the clinical and demographic correlates of persistent, remitting, and new-onset impulse control behaviors (ICBs) before and after subthalamic deep brain stimulation (STN-DBS) in Parkinson's disease (PD). We compared the pre- and post-surgical prevalence of ICBs, classified as impulse control disorders (ICD), dopamine dysregulation syndrome (DDS), and punding in 150 consecutive PD STN-DBS-treated patients and determined the association with motor, cognitive, neuropsychological, and neuropsychiatric endpoints...
October 19, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27754484/modulation-of-motor-inhibition-by-subthalamic-stimulation-in-obsessive-compulsive-disorder
#11
A Kibleur, G Gras-Combe, D Benis, J Bastin, T Bougerol, S Chabardès, M Polosan, O David
High-frequency deep brain stimulation of the subthalamic nucleus can be used to treat severe obsessive-compulsive disorders that are refractory to conventional treatments. The mechanisms of action of this approach possibly rely on the modulation of associative-limbic subcortical-cortical loops, but remain to be fully elucidated. Here in 12 patients, we report the effects of high-frequency stimulation of the subthalamic nucleus on behavior, and on electroencephalographic responses and inferred effective connectivity during motor inhibition processes involved in the stop signal task...
October 18, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27745541/patient-preferences-and-acceptability-of-evidence-based-and-novel-treatments-for-obsessive-compulsive-disorder
#12
Sapana R Patel, Hanga Galfavy, Marcia B Kimeldorf, Lisa B Dixon, Helen Blair Simpson
OBJECTIVE: This study examined preferences for and acceptability of treatments for obsessive-compulsive disorder (OCD). METHODS: Through an online survey, adults who self-reported OCD chose their preferred evidence-based treatments, rated acceptability of novel treatments, and answered open-ended questions about their preferences. Analyses examined associations between demographic, clinical, and treatment variables and first-line and augmentation treatment preferences...
October 17, 2016: Psychiatric Services: a Journal of the American Psychiatric Association
https://www.readbyqxmd.com/read/27699212/reduced-vglut2-slc17a6-gene-expression-levels-throughout-the-mouse-subthalamic-nucleus-cause-cell-loss-and-structural-disorganization-followed-by-increased-motor-activity-and-decreased-sugar-consumption
#13
Nadine Schweizer, Thomas Viereckel, Casey J A Smith-Anttila, Karin Nordenankar, Emma Arvidsson, Souha Mahmoudi, André Zampera, Hanna Wärner Jonsson, Jonas Bergquist, Daniel Lévesque, Åsa Konradsson-Geuken, Malin Andersson, Sylvie Dumas, Åsa Wallén-Mackenzie
The subthalamic nucleus (STN) plays a central role in motor, cognitive, and affective behavior. Deep brain stimulation (DBS) of the STN is the most common surgical intervention for advanced Parkinson's disease (PD), and STN has lately gained attention as target for DBS in neuropsychiatric disorders, including obsessive compulsive disorder, eating disorders, and addiction. Animal studies using STN-DBS, lesioning, or inactivation of STN neurons have been used extensively alongside clinical studies to unravel the structural organization, circuitry, and function of the STN...
September 2016: ENeuro
https://www.readbyqxmd.com/read/27642815/effectiveness-and-adverse-effects-of-deep-brain-stimulation-umbrella-review-of-meta-analyses
#14
Panagiotis N Papageorgiou, James Deschner, Spyridon N Papageorgiou
Background This umbrella review summarizes the evidence across meta-analyses regarding the effectiveness and adverse effects of deep brain stimulation (DBS). Methods Databases were searched up to March 2015 for meta-analyses of comparative trials in humans assessing the effectiveness or adverse effects of DBS. Data selection, data extraction, and risk of bias assessment were performed by two independent reviewers. Results Seven eligible systematic reviews were included assessing the use of DBS for epilepsy (n = 1), obsessive-compulsive disorder (n = 1), and Parkinson disease (n = 5)...
September 19, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/27634495/schizophrenia-and-neurosurgery-a-dark-past-with-hope-of-a-brighter-future
#15
REVIEW
Prateek Agarwal, Christina E Sarris, Yehuda Herschman, Nitin Agarwal, Antonios Mammis
Schizophrenia is a chronic and progressive psychiatric disease that remains difficult to manage in the 21st century. Current medical therapies have been able to give reprieve and decrease incidence of psychotic episodes. However, as the disease progresses, patients can become ever more refractory to current pharmaceutical agents and the polypharmacy that is attempted in treatment. Additionally, many of these drugs have significant adverse effects, leaving the practitioner in a difficult predicament for treating these patients...
December 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27583182/the-pros-and-cons-of-intraoperative-ct-scan-in-evaluation-of-deep-brain-stimulation-lead-implantation-a-retrospective-study
#16
Domenico Servello, Edvin Zekaj, Christian Saleh, Claudio Pacchetti, Mauro Porta
BACKGROUND: Deep brain stimulation (DBS) is an established therapy for movement disorders, such as Parkinson's disease (PD), dystonia, and tremor. The efficacy of DBS depends on the correct lead positioning. The commonly adopted postoperative radiological evaluation is performed with computed tomography (CT) scan and/or magnetic resonance imaging (MRI). METHODS: We conducted a retrospective study on 202 patients who underwent DBS from January 2009 to October 2013...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27551867/-not-available
#17
Matilda Naesström, Patric Blomstedt, Owe Bodlund
Deep brain stimulation for psychiatric disorders Deep brain stimulation is an established treatment for movement disorders. It has been proven to be a safe method; only minor complications have been reported in larger studies. New indications for deep brain stimulation are under investigation; among them major depressive disorder and obsessive-compulsive disorder. Deep brain stimulation for severe and therapy-resistant major depressive disorder and obsessive compulsive-disorder shows promising results. However, the experience of deep brain stimulation in psychiatric disorders is limited...
August 19, 2016: Läkartidningen
https://www.readbyqxmd.com/read/27504631/deep-brain-stimulation-of-medial-dorsal-and-ventral-anterior-nucleus-of-the-thalamus-in-ocd-a-retrospective-case-series
#18
Mohammad Maarouf, Clemens Neudorfer, Faycal El Majdoub, Doris Lenartz, Jens Kuhn, Volker Sturm
BACKGROUND: The current notion that cortico-striato-thalamo-cortical circuits are involved in the pathophysiology of obsessive-compulsive disorder (OCD) has instigated the search for the most suitable target for deep brain stimulation (DBS). However, despite extensive research, uncertainty about the ideal target remains with many structures being underexplored. The aim of this report is to address a new target for DBS, the medial dorsal (MD) and the ventral anterior (VA) nucleus of the thalamus, which has thus far received little attention in the treatment of OCD...
2016: PloS One
https://www.readbyqxmd.com/read/27411228/state-of-the-art-for-deep-brain-stimulation-therapy-in-movement-disorders-a-clinical-and-technological-perspective
#19
Aparna Wagle Shukla, Michael S Okun
Deep brain stimulation (DBS) therapy is a widely used brain surgery that can be applied for many neurological and psychiatric disorders. DBS is American Food and Drug Administration approved for medication refractory Parkinson's disease, essential tremor and dystonia. Although DBS has shown consistent success in many clinical trials, the therapy has limitations and there are well-recognized complications. Thus, only carefully selected patients are ideal candidates for this surgery. Over the last two decades, there have been significant advances in clinical knowledge on DBS...
2016: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/27286467/combined-invasive-subcortical-and-non-invasive-surface-neurophysiological-recordings-for-the-assessment-of-cognitive-and-emotional-functions-in-humans
#20
Carlos Trenado, Saskia Elben, David Petri, Jan Hirschmann, Stefan J Groiss, Jan Vesper, Alfons Schnitzler, Lars Wojtecki
In spite of the success in applying non-invasive electroencephalography (EEG), magneto-encephalography (MEG) and functional magnetic resonance imaging (fMRI) for extracting crucial information about the mechanism of the human brain, such methods remain insufficient to provide information about physiological processes reflecting cognitive and emotional functions at the subcortical level. In this respect, modern invasive clinical approaches in humans, such as deep brain stimulation (DBS), offer a tremendous possibility to record subcortical brain activity, namely local field potentials (LFPs) representing coherent activity of neural assemblies from localized basal ganglia or thalamic regions...
2016: Journal of Visualized Experiments: JoVE
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