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Psychogenic movement disorders

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https://www.readbyqxmd.com/read/29571869/prevalence-of-functional-psychogenic-parkinsonism-in-two-swiss-movement-disorders-clinics-and-review-of-the-literature
#1
Giulia Frasca Polara, Vanessa Fleury, Jon Stone, Anita Barbey, Pierre R Burkhard, François Vingerhoets, Selma Aybek
BACKGROUND: Functional parkinsonism (FP) is considered rare but no studies have looked at its frequency. Case series have described high rates of comorbidity with Parkinson's disease (PD), suggesting a possible association between these conditions. OBJECTIVES: To study the prevalence, epidemiology and clinical features of FP and its association with PD. METHODS: We conducted a cross-sectional population-based prevalence study as well as a chart review of cases who received a diagnosis of FP over a 10-year-period in two movement disorder clinics in Switzerland...
April 15, 2018: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29519947/acute-hyperkinetic-movement-disorders-in-italian-paediatric-emergency-departments
#2
Umberto Raucci, Pasquale Parisi, Nicola Vanacore, Giacomo Garone, Claudia Bondone, Antonella Palmieri, Lucia Calistri, Agnese Suppiej, Raffaele Falsaperla, Alessandro Capuano, Valentina Ferro, Antonio Francesco Urbino, Ramona Tallone, Alessandra Montemaggi, Stefano Sartori, Piero Pavone, Margherita Mancardi, Federico Melani, Lucrezia Ilvento, Maria Federica Pelizza, Antonino Reale
INTRODUCTION: Limited data exist on epidemiology, clinical presentation and management of acute hyperkinetic movement disorders (AHMD) in paediatric emergency departments (pED). METHODS: We retrospectively analysed a case series of 256 children (aged 2 months to 17 years) presenting with AHMD to the pEDs of six Italian tertiary care hospitals over a 2-year period (January 2012 to December 2013). RESULTS: The most common type of AHMD was tics (44...
March 8, 2018: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/29431985/tremor-sorting-through-the-differential-diagnosis
#3
Paul Crawford, Ethan E Zimmerman
Tremor is an involuntary, rhythmic, oscillatory movement of a body part. It is the most common movement disorder encountered in primary care. The diagnosis of tremor is based on clinical information obtained from the history and physical examination. The most common tremors in patients presenting to primary care physicians are enhanced physiologic tremor, essential tremor, and parkinsonian tremor. All persons have low-amplitude, high-frequency physiologic tremors at rest and during action that are not reported as symptomatic, but can be enhanced by anxiety, medication use, caffeine intake, or fatigue...
February 1, 2018: American Family Physician
https://www.readbyqxmd.com/read/29403431/acquired-sleep-related-hypermotor-epilepsy-with-disrupted-white-matter-tracts-assessed-by-multishell-diffusion-magnetic-resonance-imaging
#4
Zahari N Tchopev, Ping-Hong Yeh, Greg W Morgan, Eric Meyer, Johanna M Wolf, John M Ollinger, Gerard P Riedy, Lisa C Young
Sleep-related hypermotor epilepsy (SHE) (previously frontal lobe epilepsy) is a rare seizure disorder commonly misdiagnosed or unrecognized, causing negative patient sequelae. While usually reported in familial studies, it is more commonly acquired. Diagnosis is a challenge due to its low incidence in comparison with the more common sleep disorders or psychogenic etiologies in the differential diagnosis. Diagnosis is scaled on degree of certainty based on described or clinically documented semiology, with video EEG as a helpful, but not necessary, adjunct...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29327097/-clinical-and-cognitive-aspects-of-functional-psychogenic-tremor
#5
REVIEW
K E Zeuner, R Schmidt, P Schwingenschuh
Functional (psychogenic) tremor is the most common functional movement disorder. Characteristic clinical features, so called red flags, can help to make the clinical distinction of this type from other tremor disorders. The most common features include the variability of frequency and amplitude. Clinical examination should include different types of distraction including motor or cognitive tasks or testing the influence of suggestibility on tremor amplitude, frequency or direction. Patients often report sudden onset and remissions that may last for months or even years...
April 2018: Der Nervenarzt
https://www.readbyqxmd.com/read/29282342/-motor-symptoms-of-autoimmune-encephalopathies
#6
Yuichi Tashiro, Hiroshi Takashima
Autoimmune encephalopathies are clinically and immunologically heterogeneous disorders. At least 20 types of autoimmune encephalopathies have been discovered, with the most common type being Hashimoto encephalopathy. In clinical situations, we often observe that patients with autoimmune encephalopathy are misdiagnosed because they exhibit signs similar to those observed in functional psychogenic movement, conversion, or somatoform disorders. We clinically examined over 100 patients with autoimmune encephalopathy...
December 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29220065/clinical-profile-of-patients-with-psychogenic-non-epileptic-seizures-in-puerto-rico
#7
Joashlie M Méndez-Ruiz, Alfonso Martínez-Taboas, Yeira M Valdez-Pimentel, Miguel Torres-Narváez, Marianette Colón-Laboy, Gisela G Jiménez-Colón, José Rodríguez-Gómez, Christian J González-Jiménez
OBJECTIVE: Specialized epilepsy clinics receive many cases (20%-30% of total cases) in which the patients are diagnosed with psychogenic non-epileptic seizures (PNES). In Puerto Rico, there has been a lack of research on and data about patients with PNES. This study examined the clinical profile of 34 patients with a confirmed diagnosis of PNES. METHODS: A secondary analysis of 34 clinical records of patients with PNES was conducted. The resulting profile was based on clinical interviews, the behavioral presentation of seizures, the history of traumatic experiences or abuse, and the relationship between PNES events and life stressors...
December 2017: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/29173224/occupational-therapy-for-functional-neurological-disorders-a-scoping-review-and-agenda-for-research
#8
Paula Gardiner, Lindsey MacGregor, Alan Carson, Jon Stone
Functional neurological disorders (FND)-also called psychogenic, nonorganic, conversion, and dissociative disorders-constitute one of the commonest problems in neurological practice. An occupational therapist (OT) is commonly involved in management, but there is no specific literature or guidance for these professionals. Classification now emphasizes the importance of positive diagnosis of FND based on physical signs, more than psychological features. Studies of mechanism have produced new clinical and neurobiological ways of thinking about these disorders...
November 27, 2017: CNS Spectrums
https://www.readbyqxmd.com/read/29143206/characteristics-of-two-distinct-clinical-phenotypes-of-functional-psychogenic-dystonia-follow-up-study
#9
Igor N Petrović, Aleksandra Tomić, Marija Mitković Vončina, Danilo Pešić, Vladimir S Kostić
BACKGROUND: The fixed dystonia phenotype was originally established as a prototype of functional dystonia. Nevertheless, in recent reports different functional dystonia phenotypes have been recognized with dystonic movement comprising phasic instead of tonic contraction. OBJECTIVES: To examine clinical characteristic in all patients with dystonia who fulfilled the criteria for functional movement disorders irrespective of phenotype in an attempt to determine parameters of clinical presentations that might impact the disease progression pattern and outcome...
January 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29124784/dysfunction-in-emotion-processing-underlies-functional-psychogenic-dystonia
#10
Alberto J Espay, Thomas Maloney, Jennifer Vannest, Matthew M Norris, James C Eliassen, Erin Neefus, Jane B Allendorfer, Robert Chen, Jerzy P Szaflarski
OBJECTIVE: We sought to determine whether abnormalities in emotion processing underlie functional (psychogenic) dystonia, one of the most common functional movement disorders. METHODS: Motor and emotion circuits were examined in 12 participants with functional dystonia, 12 with primary organic dystonia, and 25 healthy controls using functional magnetic resonance imaging at 4T and a finger-tapping task (motor task), a basic emotion-recognition task (emotional faces task), and an intense-emotion stimuli task...
January 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29055272/engaging-psychiatrists-in-the-diagnosis-of-psychogenic-nonepileptic-seizures-what-can-they-contribute
#11
Massimiliano Beghi, Giuseppe Erba, Cesare Maria Cornaggia, Giorgia Giussani, Elisa Bianchi, Gianni Porro, Michela Russo, Ettore Beghi
PURPOSE: To investigate if psychiatrists could predict the diagnosis of psychogenic nonepileptic seizures (PNES) by reviewing videos of seizures of various types and to compare the accuracy and the criteria leading to the diagnosis used by psychiatrists with those used by epileptologists. METHODS: Four board-certified psychiatrists were asked to review 23 videos capturing representative events of 21 unselected consecutive patients admitted to an epilepsy center for long-term video-EEG monitoring...
October 16, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28944096/sensory-motor-and-intrinsic-mechanisms-of-thalamic-activity-related-to-organic-and-psychogenic-dystonia
#12
K Kobayashi, J H Chien, J H Kim, F A Lenz
The thalamus is a critical module in the circuit which has been associated with movement disorders including dystonia. This circuit extends from cortex to striatum to pallidum to the thalamic nucleus Ventral Lateral anterior (VLa) to cortex and can be studied by activity recorded during thalamic stereotactic surgery for the treatment of dystonia. Neuronal recordings in the VLa nucleus show low frequency modulation of firing that is correlated with and leads the low frequency modulation of EMG activity; this EMG activity is characteristic of dystonia...
June 2017: Journal of Alzheimer's Disease and Parkinsonism
https://www.readbyqxmd.com/read/28922189/acr-acnm-practice-parameter-for-the-performance-of-dopamine-transporter-dat-single-photon-emission-computed-tomography-spect-imaging-for-movement-disorders
#13
Rathan M Subramaniam, Kirk A Frey, Christopher H Hunt, Gustavo A Mercier, Lilja B Solnes, Patrick M Colletti, Yang Lu, Bital Savir-Baruch, Hadyn T Williams
This American College of Radiology and American College of Nuclear Medicine joint clinical practice parameter is for performance of dopamine transporter single photon emission computed tomography (SPECT) imaging, for patients with movement disorders. Parkinsonian syndrome (PS) consists of a group of neurodegenerative diseases including Parkinson disease (PD), progressive supranuclear palsy (PSP), multiple system atrophy (MSA), corticobasal degeneration (CBD), and dementia with Lewy bodies (DLB). Accurate diagnosis of PS is critical for clinical management...
November 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28842725/-diagnosis-of-non-epileptic-paroxysmal-disorders-and-epileptic-seizures
#14
REVIEW
S Noachtar, B Güldiken
Non-epileptic paroxysmal disorders may clinically manifest in a similar way to epileptic seizures and have to be considered in the differential diagnosis of epilepsy. Syncope, non-epileptic psychogenic seizures, paroxysmal movement disorders, migraine, transient ischemic attacks and parasomnia constitute the major differential diagnoses. A meticulous history and a third party description are useful for the differential diagnosis. Neurological, psychiatric and cardiological examinations are required for the correct differential diagnosis...
October 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28716772/chewing-induced-facial-dystonia-a-rare-presentation-of-task-specific-dystonia
#15
Chandramohan Sharma, Banshi Lal Kumawat, Ankur Garg, Kaushik Kumar Rana
This case is an addition to scarce literature available for a rare condition, chewing-induced task-specific dystonia. The patient was a 63-year-old woman who presented with a 4-year history of progressive difficulty in eating food only during chewing associated with abnormal facial grimaces without any difficulty in drinking, swallowing, speaking or singing. Examination revealed dystonia of facial muscles every time she chewed but absent during drinking and speaking. As movements were consistent and reproducible with the specific task, other differential diagnosis like motor tics, psychogenic disorder, tardive dystonia and parkinsonism syndrome were excluded leading to a diagnosis of task-specific facial dystonia triggered by chewing...
July 17, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28709746/the-most-promising-advances-in-our-understanding-and-treatment-of-functional-psychogenic-movement-disorders
#16
Mark Hallett
The name functional rather than psychogenic is getting to be more widely used for terminology of this condition. It is better accepted by patients and keeps an open mind in searching for greater understanding of the pathophysiology. Advances in the pathophysiology show an overactive limbic system with connections to the motor system. Moreover, there is a disruption of the self-agency network, possibly due to a failure of feedforward signaling. There has recently been more success in treating patients. The strongest evidence is for intensive physical therapy coupled with at least some psychological support...
January 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28653211/functional-psychogenic-stereotypies
#17
José Fidel Baizabal-Carvallo, Joseph Jankovic
Functional (psychogenic) movement disorders (FMDs) may present with a broad spectrum of phenomenology including stereotypic movements. We aimed to characterize the phenomenology of functional stereotypies and compare these features with those observed in 65 patients with tardive dyskinesia (TD). From a cohort of 184 patients with FMDs, we identified 19 (10.3%) with functional stereotypies (FS). There were 15 women and 4 men, with a mean age at onset of 38.6 ± 17.4 years. Among the patients with FS, there were 9 (47%) with orolingual dyskinesia/stereotypy, 9 (47%) with limb stereotypies, 6 (32%) with trunk stereotypies, and 2 (11%) with respiratory dyskinesia as part of orofacial-laryngeal-trunk stereotypy...
July 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28638211/psychogenic-blepharospasm-a-diagnostic-dilemma
#18
Soumitra DAS, Roopchand Pandrantil Sreedharan, Prasanth Sudhakaran Remadevi, Cheruvallil Velayudhan Saji
Blepharospasm is an uncontrolled spasmodic contraction of the orbicularis muscles of the eye resulting in an abnormal tic or twitch of eyes. It usually lasts for seconds to minutes but in severe cases eyes may be closed for hours. It may be essentially benign or secondary due to a lesion in basal ganglia, pyramidal tract, and trauma, local pathology in the eyes or drug induced. Here we are presenting a case of psychogenic blepharospasm. A 65 year old woman presented with a history of episodic inability of opening her eyes for the past 6 months...
December 25, 2016: Shanghai Archives of Psychiatry
https://www.readbyqxmd.com/read/28606495/personality-traits-in-psychogenic-nonepileptic-seizures-pnes-and-psychogenic-movement-disorder-pmd-neuroticism-and-perfectionism
#19
Vindhya Ekanayake, Sarah Kranick, Kathrin LaFaver, Arshi Naz, Anne Frank Webb, W Curt LaFrance, Mark Hallett, Valerie Voon
OBJECTIVE: Psychogenic movement disorder (PMD) and psychogenic nonepileptic seizures (PNES) are two subtypes of conversion disorder (CD). In this case-control study, we asked whether these subtypes varied as a function of personality and history of childhood abuse. METHODS: Fifty-nine patients with PMD from the Human Motor Control Section Clinic at the National Institutes of Health, 43 patients with PNES from the Rhode Island Hospital Neuropsychiatry and Behavioral Neurology Division, and 26 healthy volunteers (HC) received a battery of neurological, psychiatric and psychological assessments, including the NEO Personality Inventory Revised (NEO PI-R), the Childhood Trauma Questionnaire (CTQ), and the Traumatic Life Events Questionnaire (TLEQ)...
June 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28553377/sporadic-hyperekplexia-plus-syndrome
#20
Sadanandavalli Retnaswami Chandra, Chetan Vekhande, Lakshminarayanapuram Gopal Viswanathan, Pooja Mailankody, Karru Venkata Ravi Teja
A disorder of infants and children with pathological startle response, features of other system involvement, falls, and stiffness with retained consciousness. It should be differentiated from conditions such as myoclonic epilepsy, psychogenic movement disorder, Isaac syndrome, Schwartz-Jampel syndrome, Gilles de la Tourette, and culture-specific startle syndromes such as jumping Frenchman of Maine. A 5-year-old child symptomatic with repeated falls spontaneously as well as by sound and activities since neonatal period...
January 2017: Journal of Pediatric Neurosciences
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