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Psychogenic movement disorders

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https://www.readbyqxmd.com/read/28427022/stereotypy-of-psychogenic-nonepileptic-seizures
#1
Moshe Herskovitz
Psychogenic nonepileptic seizures (PNES) are defined as paroxysmal episodes in which epileptic semiology features are manifested, without the characteristic concomitant electrical discharges seen in epileptic seizures. Although many studies have dealt with semiologic classification of PNES, most of the studies did not raise the question of consistency of PNES in the same patient. The aim of this study was to measure the degree of consistency of PNES among individual patients. We retrospectively reviewed medical records and video- EEG records of all adult patients who underwent monitoring in our center from August 1st 2013 to May 31st 2015...
April 17, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28289798/-helpful-instrumental-examinations-in-idiopathic-parkinson-s-disease
#2
U Walter, H Zach, I Liepelt-Scarfone, W Maetzler
BACKGROUND: The clinical diagnosis of idiopathic Parkinson's disease (iPD) can be challenging. In these cases, additional diagnostic methods are available that can help to improve diagnostic accuracy. OBJECTIVES, MATERIAL AND METHODS: This article provides an overview of currently available and promising novel ancillary methods for the early and differential diagnosis of iPD. RESULTS: Imaging tools, such as 1.5 Tesla magnetic resonance imaging (MRI) and computed tomography (CT) are mainly used for the differentiation between iPD and symptomatic parkinsonian syndromes (PS)...
March 13, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28168537/hyperkinetic-movement-disorder-emergencies
#3
REVIEW
Giovanni Cossu, Carlo Colosimo
A movement disorder emergency has been defined by Fahn and Frucht as "any neurological disorder evolving acutely or subacutely, in which the clinical presentation is dominated by a primary movement disorder, and in which failure to accurately diagnose and manage the patient may result in significant morbidity or even mortality." In this review, we discuss the most common situations in which hyperkinetic movement disorders, including chorea, ballism, dystonia, myoclonus, tics, as well as psychogenic disorders, can present as emergencies...
January 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28124436/normal-sensorimotor-plasticity-in-complex-regional-pain-syndrome-with-fixed-posture-of-the-hand
#4
Francesca Morgante, Antonino Naro, Carmen Terranova, Margherita Russo, Vincenzo Rizzo, Giovanni Risitano, Paolo Girlanda, Angelo Quartarone
BACKGROUND: Movement disorders associated with complex regional pain syndrome type I have been a subject of controversy over the last 10 years regarding their nature and pathophysiology, with an intense debate about the functional (psychogenic) nature of this disorder. The aim of this study was to test sensorimotor plasticity and cortical excitability in patients with complex regional pain syndrome type I who developed a fixed posture of the hand. METHODS: Ten patients with complex regional pain syndrome type I in the right upper limb and a fixed posture of the hand (disease duration less than 24 months) and 10 age-matched healthy subjects were enrolled...
January 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28122429/suspected-perinatal-depression-revealed-to-be-hereditary-diffuse-leukoencephalopathy-with-spheroids
#5
Josefine Blume, Robert Weissert
Early motor symptoms of neurodegenerative diseases often appear in combination with psychiatric symptoms, such as depression or personality changes, and are in danger of being misdiagnosed as psychogenic in young patients. We present the case of a 32-year-old woman who presented with rapid-onset depression, followed by a hypokinetic movement disorder and cognitive decline during pregnancy. Genetic testing revealed a mutation in the colony-stimulating factor 1 receptor gene, which led to the diagnosis of hereditary diffuse leukoencephalopathy with spheroids...
January 2017: Journal of Movement Disorders
https://www.readbyqxmd.com/read/28122424/psychodynamic-psychotherapy-for-functional-psychogenic-movement-disorders
#6
Vibhash D Sharma, Randi Jones, Stewart A Factor
OBJECTIVE: As the literature for the treatment of functional (psychogenic) movement disorders (FMD) is sparse, we assessed clinical outcomes in patients with FMD who underwent treatment with psychodynamic psychotherapy (PDP). METHODS: A retrospective analysis of the data of patients with FMD who were referred for PDP from 2008-2014 at Emory University Medical Center was performed. RESULTS: Thirty patients were included, mean age at presentation was 50 years (SD 13...
January 2017: Journal of Movement Disorders
https://www.readbyqxmd.com/read/28007363/an-emergency-medicine-focused-review-of-seizure-mimics
#7
James Webb, Brit Long, Alex Koyfman
BACKGROUND: Seizures result in a change in motor, sensory, and behavioral symptoms caused by abnormal neurologic electrical activity. The symptoms share similar presentations of several other conditions, leading to difficulties in diagnosis and frequent improper management. OBJECTIVE: This review evaluates adult patients with suspected seizure, signs and symptoms of seizure, mimics of seizure, and an approach to management of seizure mimics. DISCUSSION: A seizure is caused by abnormal neurologic electrical activity resulting in altered motor, sensory, and behavioral symptoms...
December 19, 2016: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27994349/approach-to-a-tremor-patient
#8
Soumya Sharma, Sanjay Pandey
Tremors are commonly encountered in clinical practice and are the most common movement disorders seen. It is defined as a rhythmic, involuntary oscillatory movement of a body part around one or more joints. In the majority of the population, tremor tends to be mild. They have varying etiology; hence, classifying them appropriately helps in identifying the underlying cause. Clinically, tremor is classified as occurring at rest or action. They can also be classified based on their frequency, amplitude, and body part involved...
October 2016: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27990313/deep-brain-stimulation-of-a-patient-with-psychogenic-movement-disorder
#9
Jean-Philippe Langevin, Jesse M Skoch, Scott J Sherman
BACKGROUND: The long-term safety of deep brain stimulation (DBS) is an important issue because new applications are being investigated for a variety of disorders. Studying instances where DBS was inadvertently implanted in patients without a movement disorder may provide information about the safety of the therapy. We report the case of a patient with a psychogenic movement disorder treated with deep brain stimulation (DBS). CASE DESCRIPTION: The patient presented at our clinic after 5 years of chronic DBS of the subthalamic nucleus (STN) for presumed Parkinson's disease...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27942912/distinguishing-features-of-psychogenic-functional-versus-organic-hemifacial-spasm
#10
José Fidel Baizabal-Carvallo, Joseph Jankovic
Hemifacial spasm (HFS) is one of the most common presentations in patients with cranial psychogenic (functional) movement disorders (PMD). Medical records and videos of patients with PMD and HFS were reviewed to identify those with psychogenic HFS and to compare the phenomenology of psychogenic HFS with organic HFS. We identified 18 (9.8%) patients with psychogenic HFS from a cohort of 184 patients with PMDs. There were 14 (78%) women and 4 men, with a mean age at onset of 33 ± 13.5 years. These were compared with 37 consecutive patients with organic (primary) HFS...
February 2017: Journal of Neurology
https://www.readbyqxmd.com/read/27913700/clinical-decision-making-in-functional-and-hyperkinetic-movement-disorders
#11
Sandra M A van der Salm, Anne-Fleur van Rootselaar, Daniëlle C Cath, Rob J de Haan, Johannes H T M Koelman, Marina A J Tijssen
OBJECTIVE: Functional or psychogenic movement disorders (FMD) present a diagnostic challenge. To diagnose FMD, clinicians must have experience with signs typical of FMD and distinguishing features from other hyperkinetic disorders. The aim of this study was to clarify the decision-making process of expert clinicians while diagnosing FMD, myoclonus, and tics. METHODS: Thirty-nine movement disorders experts rated 60 patients using a standardized web-based survey resembling clinical practice...
January 10, 2017: Neurology
https://www.readbyqxmd.com/read/27913698/hyperkinetic-psychogenic-movement-disorders-remain-a-diagnosis-at-first-sight
#12
EDITORIAL
Peter Hedera, Antonio Gambardella
No abstract text is available yet for this article.
January 10, 2017: Neurology
https://www.readbyqxmd.com/read/27889083/psychogenic-movement-disorders-and-dopamine-transporter-scans-still-a-clinical-diagnosis
#13
Guillermo Moguel-Cobos, Zane Maroney, Jennifer M Erickson, Alexander I Tröster, Davin K Quinn
No abstract text is available yet for this article.
January 2017: Psychosomatics
https://www.readbyqxmd.com/read/27753149/functional-dystonia-and-the-borderland-between-neurology-and-psychiatry-new-concepts
#14
REVIEW
Rachel Newby, Jane Alty, Peter Kempster
Mind-brain dualism has dominated historical commentary on dystonia, a dichotomous approach that has left our conceptual grasp of it stubbornly incomplete. This is particularly true of functional dystonia, most diagnostically challenging of all functional movement disorders, in which the question of inherent psychogenicity remains a focus of debate. Phenomenological signs considered in isolation lack the specificity to distinguish organic and nonorganic forms, and dystonia's variability has frustrated attempts to develop objective laboratory-supported standards...
December 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27719868/factitious-disorders-and-malingering-in-relation-to-functional-neurologic-disorders
#15
REVIEW
C Bass, P Halligan
Interest in malingering has grown in recent years, and is reflected in the exponential increase in academic publications since 1990. Although malingering is more commonly detected in medicolegal practice, it is not an all-or-nothing presentation and moreover can vary in the extent of presentation. As a nonmedical disorder, the challenge for clinical practice remains that malingering by definition is intentional and deliberate. As such, clinical skills alone are often insufficient to detect it and we describe psychometric tests such as symptom validity tests and relevant nonmedical investigations...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719859/functional-voice-disorders-clinical-presentations-and-differential-diagnosis
#16
REVIEW
J Baker
In this chapter, an overview of the heterogeneous group of functional voice disorders is given, including the psychogenic voice disorder (PVD) and hyperfunctional or muscle tension voice disorder (MTVD) subgroups. Reference is made to prevalence and demographic data, with empiric evidence for psychosocial factors commonly associated with the onset and maintenance of these disorders. Clinical features that distinguish between the different presentations of PVD and MTVD are described. While there are some shared characteristics, key differences between these two subgroups indicate that PVD more closely resembles the psychogenic movement disorders and a range of other functional neurologic disorders...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719854/functional-eye-movement-disorders
#17
REVIEW
D Kaski, A M Bronstein
Functional (psychogenic) eye movement disorders are perhaps less established in the medical literature than other types of functional movement disorders. Patients may present with ocular symptoms (e.g., blurred vision or oscillopsia) or functional eye movements may be identified during the formal examination of the eyes in patients with other functional disorders. Convergence spasm is the most common functional eye movement disorder, but functional gaze limitation, functional eye oscillations (also termed "voluntary nystagmus"), and functional convergence paralysis may be underreported...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719847/functional-sensory-symptoms
#18
REVIEW
J Stone, M Vermeulen
Functional (psychogenic) sensory symptoms are those in which the patient genuinely experiences alteration or absence of normal sensation in the absence of neurologic disease. The hallmark of functional sensory symptoms is the presence of internal inconsistency revealing a pattern of symptoms governed by abnormally focused attention. In this chapter we review the history of this area, different clinical presentations, diagnosis (including sensitivity of diagnostic tests), treatment, experimental studies, and prognosis...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719846/functional-gait-disorder
#19
REVIEW
V S C Fung
Gait disorder is a common accompaniment of functional neurologic disorders. The diagnosis of a functional or psychogenic gait is complex. It requires a sound knowledge of the range of phenomenology observed in organic movement disorders, the ability to evaluate and diagnose nonmovement disorder neurologic symptoms and signs, but additionally knowledge of potential musculoskeletal causes of gait disturbance. A stepwise approach to the analysis of the phenomenology and separation into four (sometimes overlapping) psychogenic gait syndromes is suggested to aid diagnosis: (1) movement disorder mimics; (2) neurologic (nonmovement disorder) mimics; (3) musculoskeletal or biomechanical mimics; and (4) isolated disequilibrium or balance disorders...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719845/psychogenic-functional-parkinsonism
#20
REVIEW
M A Thenganatt, J Jankovic
Psychogenic parkinsonism (PP), although often quite disabling, is one of the least commonly reported subtypes of psychogenic movement disorders. There are certain features that help distinguish PP from idiopathic Parkinson's disease, such as abrupt onset, early disability, bilateral shaking and slowness, nondecremental slowness when performing repetitive movements, voluntary resistance against passive movement without cogwheel rigidity, distractibility, "give-way" weakness, stuttering speech, bizarre gait, and a variety of behavioral symptoms...
2017: Handbook of Clinical Neurology
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