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Parkinson hallucination

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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
#1
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/28872217/adverse-effects-produced-by-different-drugs-used-in-the-treatment-of-parkinson-s-disease-a-mixed-treatment-comparison
#2
Bao-Dong Li, Zhen-Yun Bi, Jing-Feng Liu, Wei-Jun Si, Qian-Qian Shi, Li-Peng Xue, Jing Bai
OBJECTIVE: This mixed treatment comparison is used to compare the adverse effects of eleven different drugs used to treat Parkinson's disease (PD). The drugs that we compare include the following: ropinirole, rasagiline, rotigotine, entacapone, apomorphine, pramipexole, sumanirole, bromocriptine, piribedil, pergolide, and levodopa. METHODS: PubMed, EMBASE, and Cochrane Library were searched from the inception to December 2015. Our analysis combines the evidences of direct comparison and indirect comparison between various literatures...
September 4, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28860465/damaged-fiber-tracts-of-the-nucleus-basalis-of-meynert-in-parkinson-s-disease-patients-with-visual-hallucinations
#3
Dagmar H Hepp, Elisabeth M J Foncke, Henk W Berendse, Thomas M Wassenaar, Kim T E Olde Dubbelink, Henk J Groenewegen, Wilma D J van de Berg, Menno M Schoonheim
Damage to fiber tracts connecting the nucleus basalis of Meynert (NBM) to the cerebral cortex may underlie the development of visual hallucinations (VH) in Parkinson's disease (PD), possibly due to a loss of cholinergic innervation. This was investigated by comparing structural connectivity of the NBM using diffusion tensor imaging in 15 PD patients with VH (PD + VH), 40 PD patients without VH (PD - VH), and 15 age- and gender-matched controls. Fractional anisotropy (FA) and mean diffusivity (MD) of pathways connecting the NBM to the whole cerebral cortex and of regional NBM fiber tracts were compared between groups...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28834102/ventral-striatal-dopaminergic-defect-is-associated-with-hallucinations-in-parkinson-s-disease
#4
E Jaakkola, J Joutsa, E Mäkinen, J Johansson, V Kaasinen
BACKGROUND AND PURPOSE: Visual hallucinations (VHs) are a common complication of Parkinson's disease (PD). The pathogenesis of VHs in PD is still largely unclear. The aim of this study was to investigate the dopaminergic mechanisms of VHs and specifically whether the degree of striatal dopamine transporter (DAT) function or extrastriatal serotonin transporter (SERT) function can predict the appearance of VHs in patients with PD. METHODS: Twenty-two PD patients scanned with [(123) I]FP-CIT single photon emission computed tomography at an early stage of their disease who later developed VHs were identified and compared with 48 non-hallucinating PD patients...
August 22, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28833562/randomized-placebo-controlled-trial-of-ads-5102-amantadine-extended-release-capsules-for-levodopa-induced-dyskinesia-in-parkinson-s-disease-ease-lid-3
#5
Wolfgang Oertel, Karla Eggert, Rajesh Pahwa, Caroline M Tanner, Robert A Hauser, Claudia Trenkwalder, Reinhard Ehret, Jean Philippe Azulay, Stuart Isaacson, Larissa Felt, Mary Jean Stempien
BACKGROUND: The treatment of levodopa-induced dyskinesia in Parkinson's disease (PD) is an unmet need with no approved drug therapy. OBJECTIVE: The purpose of this study was to investigate the efficacy and safety of 274 mg ADS-5102 (amantadine) extended-release capsules (equivalent to 340-mg amantadine HCl) for levodopa-induced dyskinesia in a randomized controlled trial. METHODS: PD patients with ≥1 hour of troublesome dyskinesia and at least mild functional impact were randomized to placebo or ADS-5102 once daily at bedtime for 13 weeks...
August 21, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28817967/pimavanserin-a-novel-antipsychotic-for-management-of-parkinson-s-disease-psychosis
#6
Yasaman Kianirad, Tanya Simuni
Parkinson's disease psychosis (PDP) may develop in up to 60% of Parkinson's patients and is associated with increased morbidity and mortality. It also correlates with depression and dementia, and can contribute to caregiver stress and burnout. Pimavanserin is the first FDA approved drug for the treatment of hallucinations and delusions associated with PDP. Areas covered: For this review, a MEDLINE literature search (via PubMed) and information provided by ACADIA Pharmaceuticals were used. References of our search results were screened for additional studies...
August 18, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28805589/visual-dysfunction-in-parkinson-s-disease
#7
Richard A Armstrong
This chapter describes the visual problems likely to be encountered in Parkinson's disease (PD) and whether such signs are useful in differentiating the parkinsonian syndromes. Visual dysfunction in PD may involve visual acuity, contrast sensitivity, color discrimination, pupil reactivity, saccadic and pursuit eye movements, motion perception, visual fields, and visual processing speeds. In addition, disturbance of visuospatial orientation, facial recognition problems, rapid eye movement (REM) sleep behavior disorder, and chronic visual hallucinations may be present...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805574/nonmotor-symptoms-in-vascular-and-other-secondary-parkinsonism
#8
Oleg S Levin, Achcha Sh Chimagomedova, Natalia A Skripkina, Elena A Lyashenko, Olga V Babkina
Vascular parkinsonism (VP) is a relatively frequent variant of secondary parkinsonism caused by ischemic or hemorrhagic lesions of basal ganglia, midbrain, or their links with frontal cortex. According to different investigations, various forms of cerebrovascular disease cause 1%-15% of parkinsonism cases. Nonmotor symptoms are frequently found in VP and may negatively influence on quality of life. However, nonmotor symptoms such as hallucinations, orthostatic hypotension, REM-sleep behavior disorder, and anosmia are rarely revealed in VP, which may be noted to another diagnosis or mixed pathology...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28803382/cortical-afferent-inhibition-abnormalities-reveal-cholinergic-dysfunction-in-parkinson-s-disease-a-reappraisal
#9
REVIEW
Raffaele Nardone, Francesco Brigo, Viviana Versace, Yvonne Höller, Frediano Tezzon, Leopold Saltuari, Eugen Trinka, Luca Sebastianelli
Parkinson's disease (PD) is a multisystem neurodegenerative disorder affecting, besides the dopaminergic function, multiple neurotransmission systems, including the cholinergic system. Central cholinergic circuits of human brain can be tested non-invasively by coupling peripheral nerve stimulation with transcranial magnetic stimulation (TMS) of motor cortex; this test is named short latency afferent inhibition (SAI). SAI abnormalities have been reported in PD patients with gait disturbances and many non-motor symptoms, such as visual hallucinations (VHs), REM sleep behavior disorder (RBD), dysphagia, and olfactory impairment...
August 12, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28802934/psychosis-in-parkinson-s-disease
#10
Dominic H Ffytche, Dag Aarsland
Although illusions, hallucinations and delusions did not play a prominent role in James Parkinson's original clinical descriptions, the longitudinal view of disease progression he advocated has important lessons for the study of such symptoms today. A focus on longitudinal progression rather than individual symptoms led to the concept of PD psychosis-a spectrum of positive symptoms in Parkinson's disease. The publication of criteria for PD psychosis in 2007 helped unify the disparate set of symptoms, raising their profile and resulting in a rapid expansion of literature focussing on clinical aspects, mechanisms, and treatment...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28802919/nonmotor-signs-in-genetic-forms-of-parkinson-s-disease
#11
Meike Kasten, Connie Marras, Christine Klein
Although only a minority (i.e., ~5%) of Parkinson's disease (PD) cases is due to well-defined genetic causes, important clues about the common, "idiopathic" PD (iPD) can be garnered from monogenic model diseases. Nonmotor signs (NMS) are also present in monogenic PD and reviewed in this chapter for the confirmed PD genes SNCA, LRRK2, VPS35, Parkin, PINK1, DJ-1, and the risk factor gene GBA. Within the context of the MDSGene database (www.mdsgene.org), we performed a systematic literature search and extracted information on cognitive decline, depression, psychotic signs and symptoms, autonomic signs and symptoms, anxiety, sleep disorder, and olfactory impairment...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28777755/ads-5102-amantadine-extended-release-capsules-for-levodopa-induced-dyskinesia-in-parkinson-s-disease-ease-lid-2-study-interim-results-of-an-open-label-safety-study
#12
Robert A Hauser, Rajesh Pahwa, Caroline M Tanner, Wolfgang Oertel, Stuart H Isaacson, Reed Johnson, Larissa Felt, Mary Jean Stempien
BACKGROUND: Medical treatment of levodopa-induced dyskinesia (LID) in Parkinson's disease (PD) is an unmet need. ADS-5102 (amantadine) extended-release capsules is being developed for the treatment of LID in patients with PD. OBJECTIVE: Evaluate the long-term safety and tolerability of 274 mg ADS-5102 for LID in PD. METHODS: In an ongoing, open-label safety study (NCT02202551), PD patients with LID received 274 mg of ADS-5102 once daily at bedtime...
2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28758318/the-role-of-neurotransmitters-in-the-development-of-parkinson-s-disease-related-psychosis
#13
REVIEW
S A Factor, W M McDonald, F C Goldstein
Psychotic symptoms are common, disabling non-motor features of Parkinson's disease (PD). Despite noted heterogeneity in clinical features, natural history and therapy response, current dogma posits that psychosis generally progresses in a stereotypic manner through a cascade of events that begins with minor hallucinations and evolves to severe hallucinations and delusions. Further, the occurrence of psychotic symptoms is believed to indicate a poor prognosis. Here we propose a classification scheme that outlines the pathogenesis of psychosis as it relates to dysfunction of several neurotransmitter systems...
July 31, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28735797/characteristics-correlates-and-assessment-of-psychosis-in-parkinson-disease-without-dementia
#14
Matthew J Barrett, Mark E Smolkin, Joseph L Flanigan, Binit B Shah, Madaline B Harrison, Scott A Sperling
INTRODUCTION: Considering that psychosis in Parkinson disease (PD) is associated with worse outcomes, including dementia, we aimed to study the characteristics, correlates, and assessment of PD psychosis in those without dementia. METHODS: 101 PD subjects without dementia (Montreal Cognitive Assessment ≥21/30) were recruited to participate in a study of neuropsychiatric symptoms in PD. This study included a baseline standard neurological exam and common PD symptom assessments...
July 15, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28716235/psychosis-in-parkinson-s-disease-from-the-soft-signs-to-the-hard-science
#15
REVIEW
Abhishek Lenka, Priyantha Herath, Rita Christopher, Pramod Kumar Pal
Patients with Parkinson's disease (PD) may develop a wide spectrum of non-motor symptoms during the course of illness. Psychosis is one such commonly observed non-motor symptoms of PD. Although several studies based on neuroimaging, genetics, retinal imaging, and neuropsychological evaluations have explored the pathogenesis of psychosis in PD; exact neural correlates are yet to be understood. Identification of factors related to psychosis in PD is important, as psychosis has been reported to be associated with higher rates of mortality, caregiver distress, and nursing home placements...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28715903/parkinson-s-disease-and-parkinson-s-disease-psychosis-a-perspective-on-the-challenges-treatments-and-economic-burden
#16
Doral Fredericks, James C Norton, Carolyn Atchison, Robert Schoenhaus, Michael W Pill
Parkinson's disease (PD) is a progressive neurodegenerative disease associated with a decrease in the neurotransmitter dopamine and characterized by the cardinal motor hallmarks of resting tremor, rigidity, bradykinesia/akinesia, and postural instability. Lesser-known features of PD revolve around nonmotor concerns including psychosis, dementia, sleep disturbances, autonomic dysfunction, and sensory abnormalities. Parkinson's disease psychosis (PDP) contributes significantly to morbidity, mortality, nursing home placement, and quality of life (QOL)...
April 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/28714891/structural-and-functional-neuroimaging-of-visual-hallucinations-in-lewy-body-disease-a-systematic-literature-review
#17
REVIEW
Stefania Pezzoli, Annachiara Cagnin, Oliver Bandmann, Annalena Venneri
Patients with Lewy body disease (LBD) frequently experience visual hallucinations (VH), well-formed images perceived without the presence of real stimuli. The structural and functional brain mechanisms underlying VH in LBD are still unclear. The present review summarises the current literature on the neural correlates of VH in LBD, namely Parkinson's disease (PD), and dementia with Lewy bodies (DLB). Following a systematic literature search, 56 neuroimaging studies of VH in PD and DLB were critically reviewed and evaluated for quality assessment...
July 15, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28666710/homozygous-alpha-synuclein-p-a53v-in-familial-parkinson-s-disease
#18
Hiroyo Yoshino, Makito Hirano, A Jon Stoessl, Yoko Imamichi, Aya Ikeda, Yuanzhe Li, Manabu Funayama, Ikuko Yamada, Yusaku Nakamura, Vesna Sossi, Matthew J Farrer, Kenya Nishioka, Nobutaka Hattori
We have assessed the frequency of alpha-synuclein (SNCA) mutations in Japanese patients with familial or sporadic Parkinson's disease (PD) and surveyed their associated clinical manifestations. We screened SNCA exon 3 in 988 patients without SNCA multiplications (430 with autosomal dominant PD and 558 with sporadic PD). We detected 1 patient harboring a homozygous SNCA p.A53V substitution albeit with an autosomal dominant pattern of disease inheritance (frequency 2/860 = 0.2%). The proband manifested slow and progressive parkinsonism at 55 years...
September 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28663785/case-report-novel-mutations-in-tbc1d24-are-associated-with-autosomal-dominant-tonic-clonic-and-myoclonic-epilepsy-and-recessive-parkinsonism-psychosis-and-intellectual-disability
#19
Erika Banuelos, Keri Ramsey, Newell Belnap, Malavika Krishnan, Chris Balak, Szabolcs Szelinger, Ashley L Siniard, Megan Russell, Ryan Richholt, Matt De Both, Ignazio Piras, Marcus Naymik, Ana M Claasen, Sampathkumar Rangasamy, Matthew J Huentelman, David W Craig, Philippe M Campeau, Vinodh Narayanan, Isabelle Schrauwen
Mutations disrupting presynaptic protein TBC1D24 are associated with a variable neurological phenotype, including DOORS syndrome, myoclonic epilepsy, early-infantile epileptic encephalopathy, and non-syndromic hearing loss. In this report, we describe a family segregating autosomal dominant epilepsy, and a 37-year-old Caucasian female with a severe neurological phenotype including epilepsy, Parkinsonism, psychosis, visual and auditory hallucinations, gait ataxia and intellectual disability. Whole exome sequencing revealed two missense mutations in the TBC1D24 gene segregating within this family (c...
2017: F1000Research
https://www.readbyqxmd.com/read/28638698/atypical-antipsychotic-therapy-in-parkinson-s-disease-psychosis-a-retrospective-study
#20
Mei Yuan, Laura Sperry, Norika Malhado-Chang, Alexandra Duffy, Vicki Wheelock, Sarah Farias, Kevin O'Connor, John Olichney, Kiarash Shahlaie, Lin Zhang
OBJECTIVE: Parkinson's disease psychosis (PDP) is a frequent complication of idiopathic Parkinson's disease (iPD) with significant impact on quality of life and association with poorer outcomes. Atypical antipsychotic drugs (APDs) are often used for the treatment of PDP; however, their use is often complicated by adverse drug reactions (ADRs). In this study, we present patients with PDP who were treated with the most commonly used atypical antipsychotic agents and review their respective ADRs...
June 2017: Brain and Behavior
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