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https://www.readbyqxmd.com/read/28203181/bilateral-superior-cerebellar-artery-embolic-occlusion-with-a-fetal-type-posterior-cerebral-artery-providing-collateral-circulation
#1
Taylor J Bergman, Rachael C Saporito, Thomas Hope
Bilateral infarction of the superior cerebellar arteries with sparing of the rest of the posterior circulation, particularly the posterior cerebral arteries, is an uncommon finding in neurological practice. Most commonly, the deficits of the superior cerebellar arteries and posterior cerebral arteries occur together due to the close proximity of their origins at the top of the basilar artery. A patient was transferred to the neurological intensive care unit with a history of recent-onset falls from standing, profound hypertension, dizziness, and headaches...
September 2016: Case Reports in Neurology
https://www.readbyqxmd.com/read/28149393/eye-movement-abnormalities-in-essential-tremor
#2
Magdalena Wójcik-Pędziwiatr, Klaudia Plinta, Agnieszka Krzak-Kubica, Katarzyna Zajdel, Marcel Falkiewicz, Jacek Dylak, Jan Ober, Andrzej Szczudlik, Monika Rudzińska
Essential tremor (ET) is the most prevalent movement disorder, characterized mainly by an action tremor of the arms. Only a few studies published as yet have assessed oculomotor abnormalities in ET and their results are unequivocal. The aim of this study was to assess the oculomotor abnormalities in ET patients compared with the control group and to find the relationship between oculomotor abnormalities and clinical features of ET patients. We studied 50 ET patients and 42 matched by age and gender healthy controls...
September 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28141723/anxiety-associated-with-asthma-exacerbations-and-overuse-of-medication-the-role-of-cultural-competency
#3
Yousuke T Horikawa, Tina Y Udaka, Janet K Crow, John I Takayama, Martin T Stein
Toshi, a 14-year-old Japanese boy, had uncontrolled asthma after relocating from Japan with his family 1 year ago. In Japan, he was diagnosed with moderate, persistent asthma, which was controlled with salmeterol and albuterol on an as needed basis. Since moving to the United States, Toshi complained of frequent dyspnea.Initially, he was seen by a Japanese physician who prescribed 200 mg of fluticasone 3 times a day and albuterol nebulization as needed. When Toshi came to the Pediatric Primary Care Clinic, he reported using his nebulizer up to 25 times daily...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28119944/liver-transplantation-as-a-treatment-for-severe-refractory-vitamin-e-deficiency-related-to-progressive-familial-intrahepatic-cholestasis-type-2-in-a-pediatric-patient
#4
Elizabeth Collyer, Vera Hupertz, Bijan Eghtesad, Kadakkal Radhakrishnan
Refractory vitamin E deficiency is thought to have irreversible effects on neurologic function. We report an adolescent boy with severe refractory vitamin E deficiency due to progressive familial intrahepatic cholestasis (PFIC) type 2. His consequent neurologic dysfunction included severe ataxia, dysmetria, dysarthria, and cranial nerve VI palsy. He underwent liver transplantation at age 13 due to his neurologic dysfunction; and afterward, he had marked improvement in neurologic function. We demonstrate that in a patient with PFIC 2 and severe refractory vitamin E deficiency, liver transplant can improve vitamin E absorption, prevent further neurological sequelae, and reverse prior neurologic dysfunction...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28093369/rehabilitation-of-the-pontine-ataxia-dysmetria-syndrome
#5
Stephanie Li, Kasondra Hartman, Krishna Surapaneni, Eric L Altschuler
: We present a case of a patient with significant ataxia and dysmetria following a lacunar pontine infarction and review the literature on this uncommon syndrome. The patient had an excellent clinical course with near resolution of symptoms and signs in less than 3 weeks. We illustrate the patient's ataxia and dysmetria with videos and also use the videos to demonstrate and characterize the features of the dysmetria. Interestingly, the characteristics of the dysmetria appear to be different from those seen in patients with dysmetria arising from a cerebellar or thalamic lesion...
January 16, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28074593/microtubule-associated-protein-map-1b-novel-paraneoplastic-biomarker-running-head-map-1b-igg-novel-paraneoplastic-biomarker
#6
Avi Gadoth, Thomas J Kryzer, Jim Fryer, Andrew McKeon, Vanda A Lennon, Sean J Pittock
To report the identification of microtubule associated protein (MAP)1B as the antigen of the previously described PCA-2 antibody, its frequency and clinical, oncological and serological associations. Methods Archival serum or cerebrospinal fluid (CSF) specimens were available from 96 of 118 consecutive PCA-2-IgG-seropositive patients identified 1993-2016. The autoantigen, defined in mouse brain lysate by western blot and mass spectrometry, was confirmed by dual immunohistochemical staining using commercial antibodies...
January 11, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/27928389/oculomotor-nerve-palsy-presented-with-isolated-unilateral-ptosis-and-minimal-upgaze-palsy
#7
Canan Togay Işıkay, Busra S Polat
This case with unilateral complete blepharoptosis and slight limitation of upgaze as ocular findings due to midbrain infarction represents an unusual form of intra-axial oculomotor nerve involvement. A 65-year-old man was admitted with acute unilateral ptosis of the left eyelid and gait ataxia. He had chronic hypertension in the medical history. The neurologic examination revealed that he had a complete ptosis of the left eyelid, slight limitation of elevation in the left eye, bilateral dysmetria, and gait ataxia...
April 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27815857/cerebellar-assessment-in-early-multiple-sclerosis
#8
Amandine Moroso, Aurélie Ruet, Mathilde Deloire, Delphine Lamargue-Hamel, Stéphanie Cubizolle, Julie Charré-Morin, Aurore Saubusse, Bruno Brochet
Cerebellar impairment is frequent and predictive of disability in multiple sclerosis (MS). The Nine-Hole Peg Test (NHPT) is commonly used to assess cerebellar symptoms despite its lack of specificity for cerebellar ataxia. Eye-tracking is a reliable test for identifying subtle cerebellar symptoms and could be used in clinical trials, including those involving early MS patients. To evaluate, by the use of eye-tracking, the accuracy of the NHPT in detecting subtle cerebellar symptoms in patients with clinically isolated syndrome with a high risk of conversion to MS (HR-CIS)...
November 4, 2016: Cerebellum
https://www.readbyqxmd.com/read/27783098/-degenerative-cerebellar-diseases-and-differential-diagnoses
#9
W Reith, S Roumia, P Dietrich
CLINICAL/METHODICAL ISSUE: Cerebellar syndromes result in distinct clinical symptoms, such as ataxia, dysarthria, dysmetria, intention tremor and eye movement disorders. STANDARD RADIOLOGICAL METHODS: In addition to the medical history and clinical examination, imaging is particularly important to differentiate other diseases, such as hydrocephalus and multi-infarct dementia from degenerative cerebellar diseases. Degenerative diseases with cerebellar involvement include Parkinson's disease, multiple system atrophy as well as other diseases including spinocerebellar ataxia...
November 2016: Der Radiologe
https://www.readbyqxmd.com/read/27658421/progressive-gait-ataxia-following-deep-brain-stimulation-for-essential-tremor-adverse-effect-or-lack-of-efficacy
#10
Martin M Reich, Joachim Brumberg, Nicolò G Pozzi, Giorgio Marotta, Jonas Roothans, Mattias Åström, Thomas Musacchio, Leonardo Lopiano, Michele Lanotte, Ralph Lehrke, Andreas K Buck, Jens Volkmann, Ioannis U Isaias
Thalamic deep brain stimulation is a mainstay treatment for severe and drug-refractory essential tremor, but postoperative management may be complicated in some patients by a progressive cerebellar syndrome including gait ataxia, dysmetria, worsening of intention tremor and dysarthria. Typically, this syndrome manifests several months after an initially effective therapy and necessitates frequent adjustments in stimulation parameters. There is an ongoing debate as to whether progressive ataxia reflects a delayed therapeutic failure due to disease progression or an adverse effect related to repeated increases of stimulation intensity...
September 21, 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27527824/ocular-motor-disturbances-in-autism-spectrum-disorders-systematic-review-and-comprehensive-meta-analysis
#11
Beth P Johnson, Jarrad A G Lum, Nicole J Rinehart, Joanne Fielding
There has been considerable focus placed on how individuals with autism spectrum disorder (ASD) visually perceive and attend to social information, such as facial expressions or social gaze. The role of eye movements is inextricable from visual perception, however this aspect is often overlooked. We performed a series of meta-analyses based on data from 28 studies of eye movements in ASD to determine whether there is evidence for ocular motor dysfunction in ASD. Tasks assessed included visually-guided saccade tasks, gap/overlap, anti-saccade, pursuit tasks and ocular fixation...
October 2016: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/27453159/cerebellar-output-encodes-a-corrective-saccadic-command-commentary-on-sun-et-al
#12
David J Herzfeld, Reza Shadmehr
No abstract text is available yet for this article.
October 2016: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27436538/voltage-gated-p-q-type-calcium-channel-antibodies-associated-with-cerebellar-degeneration
#13
Mary C Spiciarich, Solomon L Moshé
BACKGROUND: Paraneoplastic cerebellar degeneration is a rare neurological condition characterized by diffuse cerebellar dysfunction and magnetic resonance imaging evidence of progressive cerebellar atrophy. It has been associated with several autoantibodies and malignancies in adults. To date, only six cases have been described in male children. PATIENT DESCRIPTION: We describe an eight-year-old girl with a prodrome of abdominal pain and vomiting followed by acute onset diplopia, dysarthria, dysmetria, and ataxia...
September 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/27382494/haemophilus-parainfluenzae-mural-endocarditis-case-report-and-review-of-the-literature
#14
Luca T Giurgea, Tim Lahey
Haemophilus parainfluenzae, which uncommonly causes endocarditis, has never been documented to cause mural involvement. A 62-year-old immunocompetent female without predisposing risk factors for endocarditis except for poor dentition presented with fever, emesis, and dysmetria. Echocardiography found a mass attached to the left ventricular wall with finger-like projections. Computed tomography showed evidence of embolic phenomena to the brain, kidneys, spleen, and colon. Cardiac MRI revealed involvement of the chordae tendineae of the anterior papillary muscles...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27366189/ramsay-hunt-syndrome-associated-with-central-nervous-system-involvement-in-an-adult
#15
Tommy L H Chan, Ana M Cartagena, Anne Marie Bombassaro, Seyed M Hosseini-Moghaddam
Ramsay Hunt syndrome associated with varicella zoster virus reactivation affecting the central nervous system is rare. We describe a 55-year-old diabetic female who presented with gait ataxia, right peripheral facial palsy, and painful vesicular lesions involving her right ear. Later, she developed dysmetria, fluctuating diplopia, and dysarthria. Varicella zoster virus was detected in the cerebrospinal fluid by polymerase chain reaction. She was diagnosed with Ramsay Hunt syndrome associated with spread to the central nervous system...
2016: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/27316242/motor-neuropathy-contributes-to-crouching-in-patients-with-dravet-syndrome
#16
Cyril Gitiaux, Nicole Chemaly, Susana Quijano-Roy, Christine Barnerias, Isabelle Desguerre, Marie Hully, Catherine Chiron, Olivier Dulac, Rima Nabbout
OBJECTIVE: Since SCN1A is expressed in the motor neuron initial segment, we explored whether motor neuron dysfunction could contribute to gait disturbance and orthopedic misalignment in patients with Dravet syndrome due to SCN1A mutations. METHODS: We assessed 12 consecutive patients who presented to our institution between January and March 2013. All of them were older than 2 years and were positive for the SCN1A mutation. We performed nerve conduction velocity studies and needle EMG recordings...
July 19, 2016: Neurology
https://www.readbyqxmd.com/read/27293341/clinical-and-mri-findings-of-cerebellar-agenesis-in-two-living-adult-patients
#17
Fazıl Mustafa Gelal, Tuğçe Özlem Kalaycı, Mehmet Çelebisoy, Levent Karakaş, Hülya Erdoğan Akkurt, Feray Koç
Cerebellar agenesis (CA) is an extremely rare entity. We present two adult patients with CA. The 61-year-old man had ataxia, dysarthria, abnormalities in cerebellar tests, severe cognitive impairment, and moderate mental retardation. The 26-year-old woman had dysmetria, dysdiadochokinesia, and dysarthria as well as mild cognitive impairment and mild mental retardation. Magnetic resonance imaging (MRI) showed complete absence of the cerebellum with small residual vermis. Brainstem was hypoplastic and structures above tentorium were normal...
April 2016: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27274910/ataxia-with-vitamin-e-deficiency-may-present-with-cervical-dystonia
#18
Andrew E Becker, Wendy Vargas, Toni S Pearson
BACKGROUND: Ataxia with vitamin E deficiency (AVED) is an autosomal recessive disorder that usually presents with ataxia, areflexia, and proprioceptive and vibratory sensory loss. Dystonia has been reported rarely. CASE REPORT: An 11-year-old female presented with dystonic head tremor and cervical and bilateral arm dystonia. Her 14-year-old older brother had dystonic head tremor and generalized dystonia. One year later, the brother developed dysarthria, limb dysmetria, and gait ataxia...
2016: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/27255776/individual-neurons-in-the-caudal-fastigial-oculomotor-region-for-convey-information-on-both-macro-and-microsaccades
#19
Zongpeng Sun, Marc Junker, Peter W Dicke, Peter Thier
Recent studies have suggested that microsaccades, the small amplitude saccades made during fixation, are precisely controlled. Two lines of evidence suggest that the cerebellum plays a key role not only in improving the accuracy of macrosaccades but also of microsaccades. First, lesions of the fastigial oculomotor regions (FOR) cause horizontal dysmetria of both micro- and macrosaccades. Secondly, our previous work on Purkinje cell simple spikes in the oculomotor vermis (OV) has established qualitatively similar response preferences for these two groups of saccades...
June 3, 2016: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27190280/predictive-motor-timing-and-the-cerebellar-vermis-in-schizophrenia-an-fmri-study
#20
Jan Lošák, Jitka Hüttlová, Petra Lipová, Radek Mareček, Martin Bareš, Pavel Filip, Jozef Žůbor, Libor Ustohal, Jiří Vaníček, Tomáš Kašpárek
Abnormalities in both time processing and dopamine (DA) neurotransmission have been observed in schizophrenia. Time processing seems to be linked to DA neurotransmission. The cognitive dysmetria hypothesis postulates that psychosis might be a manifestation of the loss of coordination of mental processes due to impaired timing. The objective of the present study was to analyze timing abilities and their corresponding functional neuroanatomy in schizophrenia. We performed a functional magnetic resonance imaging (fMRI) study using a predictive motor timing paradigm in 28 schizophrenia patients and 27 matched healthy controls (HC)...
November 2016: Schizophrenia Bulletin
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