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Parkinson's Disease, Deep brain stimulation

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https://www.readbyqxmd.com/read/28922169/app-based-bradykinesia-tasks-for-clinic-and-home-assessment-in-parkinson-s-disease-reliability-and-responsiveness
#1
Dustin A Heldman, Enrique Urrea-Mendoza, Lilia C Lovera, David A Schmerler, Xiomara Garcia, Mohammad E Mohammad, Maria Catalina U McFarlane, Joseph P Giuffrida, Alberto J Espay, Hubert H Fernandez
BACKGROUND: Clinical rating of bradykinesia in Parkinson disease (PD) is challenging as it must combine several movement features into a single score. Additionally, in-clinic assessment cannot capture fluctuations throughout the day. OBJECTIVE: To evaluate the reliability and responsiveness of a motion sensor-based tablet app for objective bradykinesia assessment in clinic and at home as compared to clinical ratings. METHODS: Thirty-two PD patients treated with subthalamic deep brain stimulation (DBS) were outfitted with a motion sensor on the index finger of the more affected hand to perform two repetitions of finger-tapping, hand opening-closing, and arm pronation-supination tasks with DBS on and 10, 20, and 30 minutes after turning DBS off...
September 11, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28920562/comparison-of-general-and-local-anesthesia-for-deep-brain-stimulator-insertion-a-systematic-review
#2
Veena Sheshadri, Nathan C Rowland, Jigesh Mehta, Marina Englesakis, Pirjo Manninen, Lashmi Venkatraghavan
BACKGROUND: Subthalamic nucleus deep brain stimulation (STN-DBS) has become a standard treatment for many patients with Parkinson's disease (PD). The reported clinical outcome measures for procedures done under general anesthesia (GA) compared to traditional local anesthetic (LA) technique are quite heterogeneous and difficult to compare. The aim of this systematic review and metaanalysis was to determine whether the clinical outcome after STN-DBS insertion under GA is comparable to that under LA in patients with Parkinson's disease...
September 18, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28913772/weight-gain-after-subthalamic-nucleus-deep-brain-stimulation-in-parkinson-s-disease-is-influenced-by-dyskinesias-reduction-and-electrodes-position
#3
Roberta Balestrino, Damiano Baroncini, Mario Fichera, Carmine Antonio Donofrio, Alberto Franzin, Pietro Mortini, Giancarlo Comi, Maria Antonietta Volontè
Parkinson's disease is a common neurodegenerative disease that can be treated with pharmacological or surgical therapy. Subthalamic nucleus (STN) deep brain stimulation is a commonly used surgical option. A reported side effect of STN-DBS is weight gain: the aim of our study was to find those factors that determine weight gain, through one year-long observation of 32 patients that underwent surgery in our centre. During the follow-up, we considered: anthropometric features, hormonal levels, motor outcome, neuropsychological and quality of life outcomes, therapeutic parameters and electrodes position...
September 14, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28904448/surgical-treatment-of-levodopa-induced-dyskinesia-in-parkinson-s-disease
#4
Syam Krishnan, Krishnakumar Kesava Pisharady
The treatment of motor manifestations of Parkinson's disease (PD) is essentially a trade-off between adequate relief of motor symptoms and prevention and control of motor complications, particularly levodopa-induced dyskinesia (LID). Progression of PD is paralleled by a progressive difficulty in achieving the balance. Functional neurosurgical procedures provide sustained relief of LID in carefully selected patients when further tailoring of medical therapy fails to achieve this goal. Though deep brain stimulation (DBS) has superseded lesioning surgeries, pallidotomy still has a role in those patients in whom DBS is not feasible for financial or other reasons...
July 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28904447/levodopa-induced-dyskinesia-clinical-features-pathophysiology-and-medical-management
#5
Sanjay Pandey, Prachaya Srivanitchapoom
Levodopa-induced dyskinesia (LID) is commonly seen in Parkinson's disease patients treated with levodopa. This side effect is usually encountered after long duration of treatment, but occasionally, this may be seen even after few days or months of treatment. LID is broadly classified as peak-dose dyskinesia, wearing-off or off-period dyskinesia, and diphasic dyskinesia. Pathogenesis of LID is complex, and different neurotransmitters such as dopamine, glutamine, adenosine, and gamma-aminobutyric acid play important role altering the normal physiology of direct and indirect pathway of cortico-basal ganglia-thalamic loop responsible for fine motor control...
July 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28894620/programming-for-stimulation-induced-transient-nonmotor-psychiatric-symptoms-after-bilateral-subthalamic-nucleus-deep-brain-stimulation-for-parkinson-s-disease
#6
Xi Wu, Yiqing Qiu, Keith Simfukwe, Jiali Wang, Jianchun Chen, Xiaowu Hu
BACKGROUND: Stimulation-induced transient nonmotor psychiatric symptoms (STPSs) are side effects following bilateral subthalamic nucleus deep brain stimulation (STN-DBS) in Parkinson's disease (PD) patients. We designed algorithms which (1) determine the electrode contacts that induce STPSs and (2) provide a programming protocol to eliminate STPS and maintain the optimal motor functions. Our objective is to test the effectiveness of these algorithms. MATERIALS AND METHODS: 454 PD patients who underwent programming sessions after STN-DBS implantations were retrospectively analyzed...
2017: Parkinson's Disease
https://www.readbyqxmd.com/read/28894408/deep-brain-stimulation-dbs-for-movement-disorders-an-experience-in-hospital-universiti-sains-malaysia-husm-involving-12-patients
#7
Lim Liang Hooi, Diana Noma Fitzrol, Senthil Kumar Rajapathy, Tan Yew Chin, Sanihah Abdul Halim, Regunath Kandasamy, Wan Mohd Nazaruddin Wan Hassan, Badrisyah Idris, Abdul Rahman Izaini Ghani, Zamzuri Idris, John Tharakan, Sarun Nunta-Aree, Jafri Malin Abdullah
Deep brain stimulation (DBS) was first introduced in 1987 to the developed world. As a developing country Malaysia begun its movement disorder program by doing ablation therapy using the Radionics system. Hospital Universiti Sains Malaysia a rural based teaching hospital had to take into consideration both health economics and outcomes in the area that it was providing neurosurgical care for when it initiated its Deep Brain Stimulation program. Most of the patients were from the low to medium social economic groups and could not afford payment for a DBS implant...
March 2017: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28892573/bicycling-suppresses-abnormal-beta-synchrony-in-the-parkinsonian-basal-ganglia
#8
Lena Storzer, Markus Butz, Jan Hirschmann, Omid Abbasi, Maciej Gratkowski, Dietmar Saupe, Jan Vesper, Sarang S Dalal, Alfons Schnitzler
OBJECTIVE: Freezing of gait is a poorly understood symptom of Parkinson's disease, and can severely disrupt the locomotion of affected patients. However, bicycling ability remains surprisingly unaffected in most patients suffering from freezing suggesting functional differences in the motor network. The purpose of this study was to characterize and contrast the oscillatory dynamics underlying bicycling and walking in the basal ganglia. METHODS: We present the first local field potential recordings directly comparing bicycling and walking in Parkinson's disease patients with electrodes implanted in the subthalamic nuclei for deep brain stimulation...
September 11, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28890315/subthalamic-neural-entropy-is-a-feature-of-freezing-of-gait-in-freely-moving-people-with-parkinson-s-disease
#9
Judy Syrkin-Nikolau, Mandy Miller Koop, Thomas Prieto, Chioma Anidi, Muhammad Furqan Afzal, Anca Velisar, Zack Blumenfeld, Talora Martin, Megan Trager, Helen Bronte-Stewart
The goal of this study was to investigate subthalamic (STN) neural features of Freezers and Non-Freezers with Parkinson's disease (PD), while freely walking without freezing of gait (FOG) and during periods of FOG, which were better elicited during a novel turning and barrier gait task than during forward walking. METHODS: Synchronous STN local field potentials (LFPs), shank angular velocities, and ground reaction forces were measured in fourteen PD subjects (eight Freezers) off medication, OFF deep brain stimulation (DBS), using an investigative, implanted, sensing neurostimulator (Activa® PC+S, Medtronic, Inc...
September 7, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28887071/pathological-crying-induced-by-deep-brain-stimulation-of-the-subthalamic-nucleus-in-parkinson-s-disease
#10
Marc E Wolf, Mahmoud Abdallat, Christian Blahak, Joachim K Krauss
We report on a patient with deep brain stimulation (DBS) of the subthalamic nucleus (STN) for Parkinson's disease (PD) who developed pathologic crying (PC) immediately postoperatively. A spread of DBS current to adjacent cortico-ponto-cerebellar pathways might be responsible. In contrast to the few cases published previously, there was no pre-existing additional lesion that would have favoured occurrence of PC. Treating physicians should be aware of DBS-induced PC.
September 5, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28882161/general-anesthesia-versus-local-anesthesia-in-stereotaxy-galaxy-for-parkinson-s-disease-study-protocol-for-a-randomized-controlled-trial
#11
R A Holewijn, D Verbaan, R M A de Bie, P R Schuurman
BACKGROUND: The aim of the study is to investigate if deep brain stimulation (DBS) in the subthalamic nucleus (STN) for Parkinson's disease (PD) under general anesthesia further improves outcome by lessening postoperative cognitive, mood, and behavioral adverse effects; shorten surgical time and hospital admittance; and produce comparable symptomatic and functional improvement to surgery under local anesthesia. METHODS/DESIGN: The study will be a single-center, prospective, randomized, open-label, blinded endpoint trial comparing DBS under general anesthesia with DBS under local anesthesia...
September 7, 2017: Trials
https://www.readbyqxmd.com/read/28880422/deep-brain-stimulation-modulates-the-shape-of-cortical-beta-oscillations-in-parkinson-s-disease
#12
Ayda Ghahremani, Robert Chen
No abstract text is available yet for this article.
September 7, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28869946/stereotactic-radiosurgery-for-intractable-tremor-dominant-parkinson-disease-a-retrospective-analysis
#13
Sudesh S Raju, Ajay Niranjan, Edward A Monaco Iii, John C Flickinger, L Dade Lunsford
OBJECTIVE: The purpose of this study was to retrospectively analyze the outcomes of stereotactic radiosurgery for patients suffering from medically refractory Parkinson disease (PD) tremor. METHODS: We retrospectively studied the outcomes of 33 patients who were treated with gamma knife thalamotomy (GKT) over a 19-year period. Twelve patients were ≥80 years. A median dose of 140 Gy (range, 130-150 Gy) was delivered to the nucleus ventralis intermedius through a single 4-mm isocenter...
September 2, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28866626/sleep-patterns-in-parkinson-s-disease-direct-recordings-from-the-subthalamic-nucleus
#14
John A Thompson, Anand Tekriwal, Gidon Felsen, Musa Ozturk, Ilknur Telkes, Jiangping Wu, Nuri Firat Ince, Aviva Abosch
Sleep is a fundamental homeostatic process, and disorders of sleep can greatly affect quality of life. Parkinson's disease (PD) is highly comorbid for a spectrum of sleep disorders and deep brain stimulation (DBS) of the subthalamic nucleus (STN) has been reported to improve sleep architecture in PD. We studied local field potential (LFP) recordings in PD subjects undergoing STN-DBS over the course of a full-night's sleep. We examined the changes in oscillatory activity recorded from STN between ultradian sleep states to determine whether sleep-stage dependent spectral patterns might reflect underlying dysfunction...
September 2, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28866595/a-possible-explanation-of-how-high-frequency-deep-brain-stimulation-suppresses-low-frequency-tremors-in-parkinson-s-disease
#15
Vrutangkumar V V Shah, Sachin Goyal, Harish J Palanthandalam-Madapusi
Parkinson's disease (PD) is a neurodegenerative disorder of the central nervous system and one of its key symptoms is rest tremor. Deep Brain Stimulation (DBS) effectively suppresses rest tremor in Parkinson's disease. Despite being a successful treatment option, its underlying principle and the mechanism by which it attenuates tremors is not yet fully understood. Since existing methods for tuning DBS parameters are largely trial and error, understanding how DBS works can help reduce time and costs, and could also ultimately lead to better treatment strategies for PD...
August 29, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28853633/treatment-gaps-in-parkinson-s-disease-care-in-the-philippines
#16
Roland Dominic G Jamora, Janis M Miyasaki
Neurological services and resources are scarce in low-income and developing countries, such as the Philippines. We looked into the treatment gaps in Parkinson's disease (PD) care in the Philippines in the following areas: epidemiology, healthcare, financial coverage, pharmacotherapy, surgical treatment and manpower. We collected relevant data on the above-mentioned areas. There is no available Philippine data on PD prevalence. Philippine healthcare is paid through user fees at the point of service. The average consultation fee in Manila ranges from US$10...
August 30, 2017: Neurodegenerative Disease Management
https://www.readbyqxmd.com/read/28852579/predictors-of-functional-and-quality-of-life-outcomes-following-deep-brain-stimulation-surgery-in-parkinson-s-disease-patients-disease-patient-and-surgical-factors
#17
Hesham Abboud, Gencer Genc, Nicolas R Thompson, Srivadee Oravivattanakul, Faisal Alsallom, Dennys Reyes, Kathy Wilson, Russell Cerejo, Xin Xin Yu, Darlene Floden, Anwar Ahmed, Michal Gostkowski, Ayman Ezzeldin, Hazem Marouf, Ossama Y Mansour, Andre Machado, Hubert H Fernandez
OBJECTIVE: The primary objective was to evaluate predictors of quality of life (QOL) and functional outcomes following deep brain stimulation (DBS) in Parkinson's disease (PD) patients. The secondary objective was to identify predictors of global improvement. METHODS: PD patients who underwent DBS at our Center from 2006 to 2011 were evaluated by chart review and email/phone survey. Postoperative UPDRS II and EQ-5D were analyzed using simple linear regression adjusting for preoperative score...
2017: Parkinson's Disease
https://www.readbyqxmd.com/read/28851996/uncovering-the-underlying-mechanisms-and-whole-brain-dynamics-of-deep-brain-stimulation-for-parkinson-s-disease
#18
Victor M Saenger, Joshua Kahan, Tom Foltynie, Karl Friston, Tipu Z Aziz, Alexander L Green, Tim J van Hartevelt, Joana Cabral, Angus B A Stevner, Henrique M Fernandes, Laura Mancini, John Thornton, Tarek Yousry, Patricia Limousin, Ludvic Zrinzo, Marwan Hariz, Paulo Marques, Nuno Sousa, Morten L Kringelbach, Gustavo Deco
Deep brain stimulation (DBS) for Parkinson's disease is a highly effective treatment in controlling otherwise debilitating symptoms. Yet the underlying brain mechanisms are currently not well understood. Whole-brain computational modeling was used to disclose the effects of DBS during resting-state functional Magnetic Resonance Imaging in ten patients with Parkinson's disease. Specifically, we explored the local and global impact that DBS has in creating asynchronous, stable or critical oscillatory conditions using a supercritical bifurcation model...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28843009/directional-dbs-increases-side-effect-thresholds-a-prospective-double-blind-trial
#19
Till A Dembek, Paul Reker, Veerle Visser-Vandewalle, Jochen Wirths, Harald Treuer, Martin Klehr, Jan Roediger, Haidar S Dafsari, Michael T Barbe, Lars Timmermann
OBJECTIVE: The objective of this study was to investigate whether directional deep brain stimulation (DBS) of the subthalamic nucleus in Parkinson's disease (PD) offers increased therapeutic windows, side-effect thresholds, and clinical benefit. METHODS: In 10 patients, 20 monopolar reviews were conducted in a prospective, randomized, double-blind design to identify the best stimulation directions and compare them to conventional circular DBS regarding side-effect thresholds, motor improvement, and therapeutic window...
August 26, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28842656/deep-brain-stimulation-of-the-subthalamic-nucleus-does-not-negatively-affect-social-cognitive-abilities-of-patients-with-parkinson-s-disease
#20
Ivan Enrici, Antonia Mitkova, Lorys Castelli, Michele Lanotte, Leonardo Lopiano, Mauro Adenzato
Bilateral deep brain stimulation (DBS) of the subthalamic nucleus (STN) is a treatment option for patients with advanced idiopathic PD successful at alleviating disabling motor symptoms. Nevertheless, the effects of STN-DBS on cognitive functions remain controversial and few studies have investigated modification of social cognitive abilities in patients with PD treated with STN-DBS. Here we expanded the typically-investigated spectrum of these abilities by simultaneously examining emotion recognition, and both affective and cognitive Theory of Mind (ToM)...
August 25, 2017: Scientific Reports
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