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https://www.readbyqxmd.com/read/29332085/deep-brain-stimulation-of-the-subthalamic-nucleus-and-globus-pallidus-for-parkinson-s-disease
#1
Philip S Lee, Donald J Crammond, R Mark Richardson
The concept of deep brain stimulation (DBS) for Parkinson's disease (PD) was introduced over 20 years ago, but our understanding of the nuances of this procedure continues to improve. The average motor outcomes of internal segment of the globus pallidus (GPi) and subthalamic nucleus (STN) DBS appear to be similar, although GPi DBS may allow greater recovery of verbal fluency and may provide greater relief of depression symptoms and improvement in the quality of life, and STN DBS appears more likely to result in decrease in levodopa equivalent doses...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29306976/deep-brain-stimulation-of-the-anterior-nucleus-of-the-thalamus-for-drug-resistant-epilepsy
#2
REVIEW
Tim A M Bouwens van der Vlis, Olaf E M G Schijns, Frédéric L W V J Schaper, Govert Hoogland, Pieter Kubben, Louis Wagner, Rob Rouhl, Yasin Temel, Linda Ackermans
Despite the use of first-choice anti-epileptic drugs and satisfactory seizure outcome rates after resective epilepsy surgery, a considerable percentage of patients do not become seizure free. ANT-DBS may provide for an alternative treatment option in these patients. This literature review discusses the rationale, mechanism of action, clinical efficacy, safety, and tolerability of ANT-DBS in drug-resistant epilepsy patients. A review using systematic methods of the available literature was performed using relevant databases including Medline, Embase, and the Cochrane Library pertaining to the different aspects ANT-DBS...
January 6, 2018: Neurosurgical Review
https://www.readbyqxmd.com/read/29259998/safety-and-preliminary-efficacy-of-deep-transcranial-magnetic-stimulation-in-ms-related-fatigue
#3
Gunnar Gaede, Marina Tiede, Ina Lorenz, Alexander U Brandt, Caspar Pfueller, Jan Dörr, Judith Bellmann-Strobl, Sophie K Piper, Yiftach Roth, Abraham Zangen, Sven Schippling, Friedemann Paul
Objective: To conduct a randomized, sham-controlled phase I/IIa study to evaluate the safety and preliminary efficacy of deep brain H-coil repetitive transcranial magnetic stimulation (rTMS) over the prefrontal cortex (PFC) and the primary motor cortex (MC) in patients with MS with fatigue or depression (NCT01106365). Methods: Thirty-three patients with MS were recruited to undergo 18 consecutive rTMS sessions over 6 weeks, followed by follow-up (FU) assessments over 6 weeks...
January 2018: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/29250146/advanced-research-on-deep-brain-stimulation-in-treating-mental-disorders
#4
Dongxin Wang, Xuejun Liu, Bin Zhou, Weiping Kuang, Tiansheng Guo
Deep brain stimulation is a method that involves using an electric stimulus on a specific target in the brain with stereotaxis. It is a minimally invasive, safe, adjustable and reversible nerve involvement technology. At present, this technique is widely applied to treat movement disorders and has produced promising effects on mental symptoms, including combined anxiety and depression. Deep brain stimulation has therefore been employed as a novel treatment for depression, obsessive-compulsive disorder, habituation, Tourette's syndrome, presenile dementia, anorexia nervosa and other refractory mental illnesses...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29249683/before-and-after-the-veterans-affairs-cooperative-program-468-study-deep-brain-stimulator-target-selection-for-treatment-of-parkinson-s-disease
#5
Derek G Southwell, Martin J Rutkowski, Marta San Luciano, Caroline Racine, Jill Ostrem, Philip A Starr, Paul S Larson
INTRODUCTION: The Veterans Affairs Cooperative Study Program 468 study (CSP 468) produced significant findings regarding deep brain stimulation (DBS) target selection for Parkinson's Disease (PD) treatment, yet its impact on clinical practices has not been described. Here we assess how CSP 468 influenced target selection at a high-volume movement disorders treatment center. METHODS: We compared DBS target site selection between 4-year periods that immediately preceded and followed CSP 468 publication...
December 12, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29246748/impact-of-brain-shift-on-subcallosal-cingulate-deep-brain-stimulation
#6
Ki Sueng Choi, Angela M Noecker, Patricio Riva-Posse, Justin K Rajendra, Robert E Gross, Helen S Mayberg, Cameron C McIntyre
BACKGROUND: Deep brain stimulation (DBS) of the subcallosal cingulate (SCC) is an emerging experimental therapy for treatment-resistant depression. New developments in SCC DBS surgical targeting are focused on identifying specific axonal pathways for stimulation that are estimated from preoperatively collected diffusion-weighted imaging (DWI) data. However, brain shift induced by opening burr holes in the skull may alter the position of the target pathways. OBJECTIVES: Quantify the effect of electrode location deviations on tractographic representations for stimulating the target pathways using longitudinal clinical imaging datasets...
December 6, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29244906/finding-treatment-resistant-depression-in-real-world-data-how-a-data-driven-approach-compares-with-expert-based-heuristics
#7
M Soledad Cepeda, Jenna Reps, Daniel Fife, Clair Blacketer, Paul Stang, Patrick Ryan
BACKGROUND: Depression that does not respond to antidepressants is treatment-resistant depression (TRD). TRD definitions include assessments of treatment response, dose and duration, and implementing these definitions in claims databases can be challenging. We built a data-driven TRD definition and evaluated its performance. METHODS: We included adults with depression, ≥1 antidepressant, and no diagnosis of mania, dementia, or psychosis. Subjects were stratified into those with and without proxy for TRD...
December 15, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/29236966/neuronal-inhibition-and-synaptic-plasticity-of-basal-ganglia-neurons-in-parkinson-s-disease
#8
Luka Milosevic, Suneil K Kalia, Mojgan Hodaie, Andres M Lozano, Alfonso Fasano, Milos R Popovic, William D Hutchison
Deep brain stimulation of the subthalamic nucleus is an effective treatment for Parkinson's disease symptoms. The therapeutic benefits of deep brain stimulation are frequency-dependent, but the underlying physiological mechanisms remain unclear. To advance deep brain stimulation therapy an understanding of fundamental mechanisms is critical. The objectives of this study were to (i) compare the frequency-dependent effects on cell firing in subthalamic nucleus and substantia nigra pars reticulata; (ii) quantify frequency-dependent effects on short-term plasticity in substantia nigra pars reticulata; and (iii) investigate effects of continuous long-train high frequency stimulation (comparable to conventional deep brain stimulation) on synaptic plasticity...
December 11, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29228889/acute-and-chronic-changes-in-brain-activity-with-deep-brain-stimulation-for-refractory-depression
#9
Silke Conen, Julian C Matthews, Nikunj K Patel, José Anton-Rodriguez, Peter S Talbot
Deep brain stimulation is a potential option for patients with treatment-refractory depression. Deep brain stimulation benefits have been reported when targeting either the subgenual cingulate or ventral anterior capsule/nucleus accumbens. However, not all patients respond and optimum stimulation-site is uncertain. We compared deep brain stimulation of the subgenual cingulate and ventral anterior capsule/nucleus accumbens separately and combined in the same seven treatment-refractory depression patients, and investigated regional cerebral blood flow changes associated with acute and chronic deep brain stimulation...
December 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29161674/deep-brain-stimulation-of-the-subcallosal-cingulate-gyrus-in-patients-with-treatment-resistant-depression-a-double-blinded-randomized-controlled-study-and-long-term-follow-up-in-eight-patients
#10
Angela Merkl, Sabine Aust, Gerd-Helge Schneider, Veerle Visser-Vandewalle, Andreas Horn, Andrea A Kühn, Jens Kuhn, Malek Bajbouj
BACKGROUND: Deep brain stimulation (DBS) of the subcallosal cingulate gyrus (SCG) is an experimental approach in treatment-resistant depression (TRD). Short-term results of efficacy in DBS are incongruent and studies investigating long-term effects are warranted. METHODS: We assessed efficacy of SCG-DBS in eight patients randomized into a delayed-onset group (sham-DBS four weeks) and a non-delayed-onset group. The primary outcome measure was improvement on the Hamilton Depression Rating-Scale (HAMD-24-item-version)...
November 8, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29152502/target-specific-deep-brain-stimulation-of-the-ventral-capsule-ventral-striatum-for-the-treatment-of-neuropsychiatric-disease
#11
Chencheng Zhang, Dianyou Li, Haiyan Jin, Kristina Zeljic, Bomin Sun
Deep brain stimulation (DBS) is a well-established therapy for Parkinson's disease and other movement disorders. An accumulating body of evidence supports the extension of DBS application for the treatment of refractory psychiatric disorders. The ventral capsule/ventral striatum (VC/VS) is the most common anatomical target for obsessive-compulsive disorder (OCD), addiction, and depression. However, no specific electrode is available for the clinical targeting of these areas for DBS. According to the anatomical features of the VC/VS, a novel electrode was developed for simultaneous and independently programmed stimulation of the nucleus accumbens (NAc) and the anterior limb of the internal capsule (ALIC)...
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29146474/a-systematic-review-and-meta-analysis-of-deep-brain-stimulation-in-treatment-resistant-depression
#12
Chanjuan Zhou, Hanping Zhang, Yinhua Qin, Tian Tian, Bing Xu, Jianjun Chen, Xinyu Zhou, Li Zeng, Liang Fang, Xunzhong Qi, Bin Lian, Haiyang Wang, Zicheng Hu, Peng Xie
BACKGROUND: Deep brain stimulation (DBS) has been applied in treatment-resistant depression (TRD) as a putative intervention targeting different brain regions. However, the antidepressant effects of DBS for TRD in recent clinical trials remain controversial. METHODS: We searched Scopus, EMBASE, the Cochrane Library, PubMed, and PsycINFO for all published studies investigating the efficacy of DBS in TRD up to Feb 2017. Hamilton depression rating scale (HDRS) scores and Montgomery-Asberg depression rating scale (MARDS) scores were compared between baseline levels and those after DBS using the standardized mean difference (SMD) with 95% confidence intervals (CIs)...
November 13, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29142796/impact-of-depression-on-hospitalization-and-related-outcomes-for-parkinson-s-disease-patients-a-nationwide-inpatient-sample-based-retrospective-study
#13
Rikinkumar S Patel, Ramkrishna Makani, Zeeshan Mansuri, Upenkumar Patel, Rupak Desai, Amit Chopra
Background Major Depressive Disorder (MDD) is a common comorbidity that significantly affects the quality of life and disease outcomes in Parkinson's disease (PD) patients. No studies have been conducted to our knowledge to address the health care utilization and its outcomes in these patients. The aim of this study is to analyze and discern the differences in the hospitalization outcomes, comorbid conditions, and utilization of procedures in PD patients versus patients with comorbid MDD. Methods We used the Nationwide Inpatient Sample from the Healthcare Cost and Utilization Project from year's 2010-2014...
September 3, 2017: Curēus
https://www.readbyqxmd.com/read/29097256/the-pathophysiological-mechanisms-of-motivational-deficits-in-parkinson-s-disease
#14
REVIEW
A Chagraoui, L Boukhzar, F Thibaut, Y Anouar, D Maltête
Parkinson's disease (PD) is a progressive degenerative disorder that leads to disabling motor symptoms and a wide variety of neuropsychiatric symptoms. Apathy is the most common psychiatric disorder in the early stages of untreated PD and can be defined as a hypodopaminergic syndrome, which also includes anxiety and depression. Apathy is also considered the core feature of the parkinsonian triad (apathy, anxiety and depression) of behavioural non-motor signs, including a motivational deficit. Moreover, apathy is recognised as a distinct chronic neuropsychiatric behavioural disorder based on specific diagnostic criteria...
February 2, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29077804/neuropsychological-and-neuropsychiatric-features-of-idiopathic-and-dyt1-dystonia-and-the-impact-of-medical-and-surgical-treatment
#15
Marjan Jahanshahi
Dystonia is a hyperkinetic movement disorder, characterized by sustained or intermittent muscle contractions causing abnormal, often repetitive, movements, postures, or both. Executive dysfunction is a feature of cognitive function in idiopathic and DYT1 dystonia. Psychiatric morbidity is increased in dystonia, and depression, anxiety, obsessive compulsive disorders are the most common disorders. Sleep problems and pain are also frequently experienced. Evidence suggest that mood and anxiety disorders are intrinsic to the neurobiology of dystonia, but also that psychiatric co-morbidity can be secondary to pain experience and the psychosocial functioning and quality of life of the patients...
November 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/29077140/-deep-brain-stimulation-in-psychiatry
#16
M Figee, C Bervoets, D Denys
BACKGROUND: Deep brain stimulation (DBS) is now used regularly to treat therapy-refractory obsessive-compulsive disorders, and is being applied experimentally for refractory depression, Tourette syndrome, addiction, eating disorders, post-traumatic stress disorder, autism and schizophrenia. AIM: To review the effects and mechanisms of dbs and to consider the future opportunities for this type of treatment in psychiatry. METHOD: We reviewed the literature using PubMed...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/29074844/limiting-habenular-hyperactivity-ameliorates-maternal-separation-driven-depressive-like-symptoms
#17
Anna Tchenio, Salvatore Lecca, Kristina Valentinova, Manuel Mameli
Early-life stress, including maternal separation (MS), increases the vulnerability to develop mood disorders later in life, but the underlying mechanisms remain elusive. We report that MS promotes depressive-like symptoms in mice at a mature stage of life. Along with this behavioral phenotype, MS drives reduction of GABAB-GIRK signaling and the subsequent lateral habenula (LHb) hyperexcitability-an anatomical substrate devoted to aversive encoding. Attenuating LHb hyperactivity using chemogenetic tools and deep-brain stimulation ameliorates MS depressive-like symptoms...
October 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/29074339/effect-of-deep-brain-stimulation-of-the-ventromedial-prefrontal-cortex-on-the-noradrenergic-system-in-rats
#18
Sonia Torres-Sanchez, Laura Perez-Caballero, Juan A Mico, Pau Celada, Esther Berrocoso
BACKGROUND: Deep Brain Stimulation (DBS) of the subgenual cingulate cortex (SCC) is a promising therapeutic alternative to treat resistant major depressive disorder. In preclinical studies, DBS of the ventromedial prefrontal cortex (vmPFC, the rodent SCC correlate) provokes an antidepressant-like effect, along with changes in noradrenaline levels at the site of stimulation. Hence, DBS appears to activate the noradrenergic-locus coeruleus (LC) system. OBJECTIVE/HYPOTHESIS: The aim of this study was to evaluate the effect of vmPFC DBS on the electrical activity of noradrenergic LC neurons, cortical oscillations and coherence between both brain areas in male rats...
October 13, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29034243/improving-surgical-outcome-using-diffusion-tensor-imaging-techniques-in-deep-brain-stimulation
#19
REVIEW
Angela An Qi See, Nicolas Kon Kam King
INTRODUCTION: Recent advances in surgical imaging include the use of diffusion tensor imaging (DTI) in deep brain stimulation (DBS) and provide a detailed view of the white matter tracts and their connections which are not seen with conventional magnetic resonance imaging. Given that the efficacy of DBS depends on the precise and accurate targeting of these circuits, better surgical planning using information obtained from DTI may lead to improved surgical outcome. We aim to review the available literature to evaluate the efficacy of such a strategy...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/29032294/one-year-double-blind-study-of-high-vs-low-frequency-subcallosal-cingulate-stimulation-for-depression
#20
Renana Eitan, Denys Fontaine, Michel Benoît, Caroline Giordana, Nelly Darmon, Zvi Israel, Eduard Linesky, David Arkadir, Shiri Ben-Naim, Moshe Iserlles, Hagai Bergman, Natasha Hulse, Mohamed Abdelghani, Peter McGuffin, Anne Farmer, Peichel DeLea, Keyoumars Ashkan, Bernard Lerer
Subcallosal Brodmann's Area 25 (Cg25) Deep Brain Stimulation (DBS) is a new promising therapy for treatment resistant major depressive disorder (TR-MDD). While different DBS stimulating parameters may have an impact on the efficacy and safety of the therapy, there is no data to support a protocol for optimal stimulation parameters for depression. Here we present a prospective multi-center double-blind randomized crossed-over 13-month study that evaluated the effects of High (130 Hz) vs Low (20 Hz) frequency Cg25 stimulation for nine patients with TR-MDD...
October 3, 2017: Journal of Psychiatric Research
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