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https://www.readbyqxmd.com/read/28226968/discriminating-clinical-phases-of-recovery-from-major-depressive-disorder-using-the-dynamics-of-facial-expression
#1
Sahar Harati, Andrea Crowell, Helen Mayberg, Jun Kong, Shamim Nemati, Sahar Harati, Andrea Crowell, Helen Mayberg, Jun Kong, Shamim Nemati, Andrea Crowell, Helen Mayberg, Jun Kong, Shamim Nemati, Sahar Harati
We used several metrics of variability to extract unsupervised features from video recordings of patients before and after deep brain stimulation (DBS) treatment for major depressive disorder (MDD). Our goal was to quantify the treatment effects on facial expressivity. Multiscale entropy (MSE) was used to capture the temporal variability in pixel intensity level at multiple time-scales. A dynamic latent variable model (DLVM) was used to learn a low dimensional (D = 20) set of dynamic factors that explain the observed covariance across the high-dimensional pixels (M = 30 × 30) within each video frame and across time...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28179035/impact-of-deep-brain-stimulation-of-the-ventral-anterior-limb-of-the-internal-capsule-on-cognition-in-depression
#2
I O Bergfeld, M Mantione, M L C Hoogendoorn, H G Ruhé, F Horst, P Notten, J van Laarhoven, P van den Munckhof, G Beute, P R Schuurman, D Denys
BACKGROUND: Preliminary studies report no negative and a possible positive impact of deep brain stimulation (DBS) on cognition of patients with treatment-resistant depression (TRD). However, these studies neither controlled for practice effects nor compared active with sham stimulation. METHOD: To address these limitations, we compared 25 TRD patients, who underwent DBS of the ventral anterior limb of the internal capsule (vALIC), with 21 healthy controls (HCs) matched on gender, age and education level...
February 9, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28165911/acute-severe-depression-induced-by-stimulation-of-the-right-globus-pallidus-internus
#3
Johanna Philipsson, Rickard L Sjöberg, Jerome Yelnik, Patric Blomstedt
Depressive symptoms may occur after Deep Brain Stimulation (DBS) in the subthalamic nucleus. This is often explained by reduced pharmacological treatment after surgery, and not as a direct effect of DBS. Pallidal DBS seems not to be associated with such side effects and have not, to our knowledge, previously been reported. We present a patient with acute depressive symptoms induced by pallidal DBS. We believe this case strengthen the hypothesis that the basal ganglia and structures involved in the functional connectome of these nucleuses play a role not only in regulation of movement but also in regulation of mood...
February 6, 2017: Neurocase
https://www.readbyqxmd.com/read/28159909/the-organization-of-the-anterior-limb-of-the-internal-capsule-in-the-rat
#4
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/28142056/using-probabilistic-tractography-to-target-the-subcallosal-cingulate-cortex-in-patients-with-treatment-resistant-depression
#5
Evangelia Tsolaki, Randall Espinoza, Nader Pouratian
The lack of efficacy of deep brain stimulation (DBS) of subcallosal cingulate (SCC) in treatment resistant depression (TRD) may be due in part to suboptimal targeting. In two patients treated with SCC DBS for TRD we assessed the voxel-wise probabilistic connectivity of SCC with four tractography-defined target areas implicated in depression, thereby identifying the tractography-optimized target (TOT). Compared to the non-responder, the responder's DBS leads were implanted and stimulation was delivered closer to the TOT...
January 20, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28065487/the-effect-of-unilateral-subthalamic-nucleus-deep-brain-stimulation-on-depression-in-parkinson-s-disease
#6
Elizabeth L Birchall, Harrison C Walker, Gary Cutter, Stephanie Guthrie, Allen Joop, Raima A Memon, Ray L Watts, David G Standaert, Amy W Amara
BACKGROUND: Depression is common in Parkinson's disease (PD) and adversely affects quality of life. Both unilateral and bilateral subthalamic (STN) deep brain stimulation (DBS) effectively treat the motor symptoms of PD, but questions remain regarding the impact of unilateral STN DBS on non-motor symptoms, such as depression. METHODS: We report changes in depression, as measured by the Hamilton Depression Rating Scale (HAMD-17), in 50 consecutive PD patients who underwent unilateral STN DBS...
December 27, 2016: Brain Stimulation
https://www.readbyqxmd.com/read/28061418/memory-and-mood-outcomes-after-anterior-thalamic-stimulation-for-refractory-partial-epilepsy
#7
Alexander I Tröster, Kimford J Meador, Christopher P Irwin, Robert S Fisher
PURPOSE: Bilateral deep brain stimulation (DBS) of the anterior nucleus of the thalamus (ANT) reduces seizures and is relatively safe but may be accompanied by complaints of memory problems and depression. This study examined incidence of memory and depression adverse events (AE) in the SANTE study blinded phase and their relationship to objective neurobehavioral measures, baseline characteristics, quality of life and long-term neurobehavioral outcome. METHOD: The neurobehavioral AE and neuropsychological data from a previously reported prospective randomized trial (SANTE) were analyzed...
December 23, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27994542/the-retrograde-connections-and-anatomical-segregation-of-the-g%C3%A3-ttingen-minipig-nucleus-accumbens
#8
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/27964870/high-frequency-stimulation-of-the-infralimbic-cortex-induces-morphological-changes-in-rat-hippocampal-neurons
#9
Yarema B Bezchlibnyk, Scellig S D Stone, Clement Hamani, Andres M Lozano
BACKGROUND: Although a significant subset of patients with major depressive disorder (MDD) fail to respond to medical or behavioural therapy, deep brain stimulation (DBS) applied to the subgenual cingulate cortex (SCC; sg25) has been shown to reduce depressive symptoms in a subset of patients. This area receives projections from neurons in the CA1 region and subiculum of the hippocampus (HC), a brain region implicated in the pathobiology and treatment of MDD. OBJECTIVE: To assess whether high frequency stimulation (HFS) of the infralimbic cortex is associated with changes in cellular morphology in the HC...
November 23, 2016: Brain Stimulation
https://www.readbyqxmd.com/read/27930748/six-nine-year-follow-up-of-deep-brain-stimulation-for-obsessive-compulsive-disorder
#10
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/27920671/proceedings-of-the-fourth-annual-deep-brain-stimulation-think-tank-a-review-of-emerging-issues-and-technologies
#11
Wissam Deeb, James J Giordano, Peter J Rossi, Alon Y Mogilner, Aysegul Gunduz, Jack W Judy, Bryan T Klassen, Christopher R Butson, Craig Van Horne, Damiaan Deny, Darin D Dougherty, David Rowell, Greg A Gerhardt, Gwenn S Smith, Francisco A Ponce, Harrison C Walker, Helen M Bronte-Stewart, Helen S Mayberg, Howard J Chizeck, Jean-Philippe Langevin, Jens Volkmann, Jill L Ostrem, Jonathan B Shute, Joohi Jimenez-Shahed, Kelly D Foote, Aparna Wagle Shukla, Marvin A Rossi, Michael Oh, Michael Pourfar, Paul B Rosenberg, Peter A Silburn, Coralie de Hemptine, Philip A Starr, Timothy Denison, Umer Akbar, Warren M Grill, Michael S Okun
This paper provides an overview of current progress in the technological advances and the use of deep brain stimulation (DBS) to treat neurological and neuropsychiatric disorders, as presented by participants of the Fourth Annual DBS Think Tank, which was convened in March 2016 in conjunction with the Center for Movement Disorders and Neurorestoration at the University of Florida, Gainesveille FL, USA. The Think Tank discussions first focused on policy and advocacy in DBS research and clinical practice, formation of registries, and issues involving the use of DBS in the treatment of Tourette Syndrome...
2016: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/27872807/identification-of-the-stria-medullaris-thalami-using-diffusion-tensor-imaging
#12
Ryan B Kochanski, Robert Dawe, Daniel B Eddelman, Mehmet Kocak, Sepehr Sani
BACKGROUND: Deep brain stimulation (DBS) via anatomical targeting of white matter tracts defined by diffusion tensor imaging (DTI) may be a useful tool in the treatment of pathologic neurophysiologic circuits implicated in certain disease states like treatment resistant depression (TRD). We sought to determine if DTI could be used to define the stria medullaris thalami (SM), the major afferent white matter pathway to the lateral habenula (LHb), a thalamic nucleus implicated in the pathophysiology of TRD...
2016: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27842519/administration-of-electroconvulsive-therapy-for-depression-associated-with-deep-brain-stimulation-in-a-patient-with-post-traumatic-parkinson-s-disease-a-case-study
#13
Miles G Cunningham, Golnaz Yadollahikhales, Gordana Vitaliano, Craig van Horne
BACKGROUND: Deep brain stimulation (DBS) has been shown to be effective for parkinsonian symptoms poorly responsive to medications. DBS is typically well-tolerated, as are the maintenance battery changes. Here we describe an adverse event during a battery replacement procedure that caused rapid onset of severe depression. CASE PRESENTATION: The patient is a 58-year-old woman who was in a serious motor vehicle accident and sustained a concussion with loss of consciousness...
November 15, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27812714/deep-brain-stimulation-for-treatment-refractory-depression
#14
Puneet Narang, Amber Retzlaff, Kanwarjeet Brar, Steven Lippmann
Depression has a high lifetime prevalence and recurrence rate, with more than one-third of affected patients experiencing treatment-refractory depression. These individuals should benefit from additional treatment options such as deep brain stimulation (DBS), a research-grade intervention. DBS is being investigated for its efficacy in treatment-refractory cases. We reviewed the English-language literature published between the years 2010 and 2015 regarding the utility of DBS for patients with treatment-refractory depression...
November 2016: Southern Medical Journal
https://www.readbyqxmd.com/read/27743900/stimulation-of-subgenual-cingulate-area-decreases-limbic-top-down-effect-on-ventral-visual-stream-a-dbs-eeg-pilot-study
#15
Astrid Kibleur, Mircea Polosan, Pauline Favre, David Rudrauf, Thierry Bougerol, Stéphan Chabardès, Olivier David
Deep brain stimulation (DBS) of the subgenual cingulate gyrus (area CG25) is beneficial in treatment resistant depression. Though the mechanisms of action of Cg25 DBS remain largely unknown, it is commonly believed that Cg25 DBS modulates limbic activity of large networks to achieve thymic regulation of patients. To investigate how emotional attention is influenced by Cg25 DBS, we assessed behavioral and electroencephalographic (EEG) responses to an emotional Stroop task in 5 patients during ON and OFF stimulation conditions...
February 1, 2017: NeuroImage
https://www.readbyqxmd.com/read/27698736/use-of-deep-brain-stimulation-for-major-affective-disorders
#16
Kuanqing Mi
The multifactorial etiology of major affective disorders, such as major depression and bipolar disorder, poses a challenge for identification of effective treatments. In a substantial number of patients, psychopharmacologic treatment does not lead to effective continuous symptom relief. The use of deep brain stimulation (DBS) for treatment-resistant patients is an investigational approach that has recently produced promising results. The recent development of safer stereotaxic neurosurgery, and the combination with functional neuroimaging to map the affected brain circuits, have led to the investigation of DBS as a potential strategy to treat major mood disorders...
October 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27659923/cognitive-outcome-after-ventral-capsule-ventral-striatum-stimulation-for-treatment-resistant-major-depression
#17
Cynthia S Kubu, Tim Brelje, Meryl A Butters, Thilo Deckersbach, Paul Malloy, Paul Moberg, Alexander I Tröster, Eric Williamson, Gordon H Baltuch, Mahendra T Bhati, Linda L Carpenter, Darin D Dougherty, Robert H Howland, Ali R Rezai, Donald A Malone
BACKGROUND: We report the neuropsychological outcome of 25 patients with treatment-resistant major depressive disorder (TRD) who participated in an Institutional Review Board (IRB)-approved randomised double-blind trial comparing active to sham deep brain stimulation (DBS) in the anterior limb of the ventral capsule/ventral striatum (VC/VS). METHODS: Participants were randomised to active (n=12) versus sham (n=13) DBS for 16 weeks. Data were analysed at the individual and group levels...
March 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/27642815/effectiveness-and-adverse-effects-of-deep-brain-stimulation-umbrella-review-of-meta-analyses
#18
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
#19
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
#20
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
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