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Myasthenia

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https://www.readbyqxmd.com/read/28229291/a%C3%A2-patient-with-myasthenia-gravis-and-a%C3%A2-large-arachnoid-cyst-report-of-a%C3%A2-case
#1
Mira Bucuk, Iva Gasparovic, Ivan Sonnenschein, Olivio Perkovic
Myasthenia gravis is a chronic autoimmune disease characterized by weakening of voluntary muscles during the day and a marked restitution of function during the night and after rest. The symptoms may worsen over days or weeks, sometimes even in a few hours, and are usually well controlled by appropriate therapy. Arachnoid cysts are congenital or acquired deformities of the arachnoid membrane and are usually too small to cause distinct clinical symptomatology. We describe a case of a 76-year-old myasthenia gravis patient with an arachnoid cyst...
February 22, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28226641/detection-of-myasthenia-gravis-using-electrooculography-signals
#2
T Liang, M I Boulos, B J Murray, S Krishnan, H Katzberg, K Umapathy, T Liang, M I Boulos, B J Murray, S Krishnan, H Katzberg, K Umapathy, M I Boulos, K Umapathy, H Katzberg, S Krishnan, T Liang, B J Murray
Myasthenia gravis (MG) is an autoimmune neuromuscular disorder resulting from skeletal muscle weakness and fatigue. An early common symptom is fatigable weakness of the extrinsic ocular muscles; if symptoms remain confined to the ocular muscles after a few years, this is classified as ocular myasthenia gravis (OMG). Diagnosis of MG when there are mild, isolated ocular symptoms can be difficult, and currently available diagnostic techniques are insensitive, non-specific or technically cumbersome. In addition, there are no accurate biomarkers to follow severity of ocular dysfunction in MG over time...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223849/review-about-gabapentin-misuse-interactions-contraindications-and-side-effects
#3
REVIEW
Gabriel C Quintero
The current work is targeted to review the risks of gabapentin misuse, its potential interactions with other drugs, side effects and use contraindications. This review consists of a total of 99 biographical references (from the year 1983 to 2016). A publication search of PubMed was performed from January 1983 to December 2016. It included animal studies, clinical studies, case studies and reviews related to gabapentin misuse, potential interactions, side effects and use contraindications. The search terms were gabapentin, anticonvulsant and antiepileptic...
2017: Journal of Experimental Pharmacology
https://www.readbyqxmd.com/read/28221312/what-s-in-the-literature
#4
David Lacomis, Nicholas J Silvestri, Edward J Fine, Gil I Wolfe
In this edition of this column, we review new studies concerning the pathophysiology, treatment, and outcomes of patients with necrotizing myopathy, genetic testing in congenital myopathies, and limb girdle muscular dystrophies, and the incidence of polyneuropathy in the myotonic dystrophies. Various studies in myasthenia gravis, including those concerning antibody testing, clinical features, and quality of life are also reviewed as are recent findings in congenital myasthenic syndromes. Finally, 2 studies concerning polyneuropathy are discussed, including one on the association of polyneuropathy in patients with the metabolic syndrome and one on laboratory testing in patients with otherwise idiopathic small fiber polyneuropathy...
March 2017: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/28221304/outcome-measures-in-myasthenia-gravis-incorporation-into-clinical-practice
#5
Srikanth Muppidi
The development of validated assessment tools for evaluating disease status and response to interventions in patients with myasthenia gravis (MG) has been driven by clinical studies of emerging MG therapies. However, only a small proportion of MG-focused neurology practices have adopted these assessment tools for routine clinical use. This article reviews the suitability of 5 assessment instruments for incorporation into clinical practice, which should be driven by their ability to contribute to improved patient outcomes, and to be implemented within practice personnel and resource constraints...
March 2017: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/28217268/anti-musk-positive-myasthenia-gravis-and-three-semiological-cardinal-signs
#6
André P C Matta, Ana C Andorinho F Ferreira, Arielle Kirmse, Anna Carolina Damm, João Gabriel D I B Farinhas, Mariane D Barbosa, Mayara C M Teles, Camila Fiorelli, Rossano Fiorelli, Osvaldo J M Nascimento, Marco Orsini
Myasthenia gravis (MG) is a relatively uncommon disorder with an annual incidence of approximately 7 to 9 new cases per million. The prevalence is about 70 to 165 per million. The prevalence of the disease has been increasing over the past five decades. This is thought to be due to better recognition of the condition, aging of the population, and the longer life span of affected patients. MG causes weakness, predominantly in bulbar, facial, and extra-ocular muscles, often fluctuating over minutes to weeks, in the absence of wasting, sensory loss, or reflex changes...
November 2, 2016: Neurology International
https://www.readbyqxmd.com/read/28216170/-thymomectomy-by-minimally-invasive-surgery-comparative-study-videosurgery-versus-robot-assisted-surgery
#7
A Witte Pfister, J-M Baste, N Piton, M Bubenheim, J Melki, A Wurtz, C Peillon
OBJECTIVES: To report the results of minimally invasive surgery in patients with stage I or II thymoma in the Masaoka classification. The reference technique is partial or complete thymectomy by sternotonomy. METHODS: A retrospective single-center study of a prospective database including all cases of thymoma operated from April 2009 to February 2015 by minimally invasive techniques: either videosurgery (VATS) or robot-assisted surgery (RATS). The surgical technique, type of resection, length of hospital stay, postoperative complications and recurrences were analysed...
February 16, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28214342/marked-clinical-and-jitter-improvement-after-eculizumab-in-refractory-myasthenia
#8
Vern C Juel, Donald B Sanders, Lisa D Hobson-Webb, Janice M Massey, Jeffrey T Guptill, Fanny O'Brien, Jing Jing Wang, James F Howard
No abstract text is available yet for this article.
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214328/abnormal-spontaneous-activity-on-needle-electromyography-in-myasthenia-gravis
#9
Deepa Kannaditharayil, Fabreena Napier, Volkan Granit, Phyllis Bieri, Steven Herskovitz
No abstract text is available yet for this article.
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214292/prescription-profile-of-pyridostigmine-use-in-a-population-of-patients-with-myasthenia-gravis
#10
Jorge Enrique Machado-Alba, Luis Felipe Calvo-Torres, Andrés Gaviria-Mendoza, César Augusto Mejía-Vélez
INTRODUCTION: We determined the pyridostigmine prescription pattern in a population of patients with myasthenia gravis. METHODS: A descriptive cross-sectional study was done using a prescription database of 3.5 million individuals from which patients diagnosed with myasthenia gravis (MG) and for whom pyridostigmine was prescribed. RESULTS: A total of 306 outpatients with MG were found, and 258 were receiving pyridostigmine, mean age, 53.0±18...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28212996/analysis-of-a-panel-of-druggable-gene-mutations-and-of-alk-and-pd-l1-expression-in-a-series-of-thymic-epithelial-tumors-tets
#11
Marcello Tiseo, Angela Damato, Lucia Longo, Fausto Barbieri, Federica Bertolini, Alessandro Stefani, Mario Migaldi, Letizia Gnetti, Roberta Camisa, Paola Bordi, Sebastiano Buti, Giulio Rossi
INTRODUCTION: Thymic epithelial tumors (TETs) are rare neoplasms with different prognosis lacking consistent molecular alterations possibly leading to targeted therapy. We collected a consecutive series of TETs aimed at investigating the mutational status of druggable genes (EGFR, c-KIT, KRAS, BRAF, PDGFR-alpha and -beta, HER2 and c-MET) and the expression of ALK and PD-L1. PATIENTS AND METHODS: One hundred twelve consecutive cases of TETs and relative clinico-pathologic features were collected...
February 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28209438/excessive-daytime-sleepiness-in-a-patient-with-coexisting-myotonic-dystrophy-type-1-myasthenia-gravis-and-graves-disease
#12
Katarzyna Kapica-Topczewska, Robert Pogorzelski, Joanna Tarasiuk, Wiesław Drozdowski, Piotr Lewczuk, Alina Kułakowska
A 41-year-old female with history of Graves' disease, bilateral cataract, paroxysmal atrial fibrillation was admitted because of muscle weakness, daytime sleepiness, fatigability, drowsiness, bilateral eyelid ptosis, descending of head and lower jaw. On neurological examination the patient was presented with muscle weakness, muscle atrophy (in face and sternocleidomastoid muscles), features of myotonia and apocamnosis (orbicular muscles). Electromyography revealed myopathic changes, myotonic and pseudomyotonic discharges, positive repetitive nerve stimulation test in proximal muscles...
February 3, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28202703/investigations-in-gabaa-receptor-antibody-associated-encephalitis
#13
Marianna Spatola, Mar Petit-Pedrol, Mateus Mistieri Simabukuro, Thaís Armangue, Fernanda J Castro, Maria I Barcelo Artigues, Maria R Julià Benique, Leslie Benson, Mark Gorman, Ana Felipe, Ruben L Caparó Oblitas, Myrna R Rosenfeld, Francesc Graus, Josep Dalmau
OBJECTIVE: To report the clinical features, comorbidities, receptor subunit targets, and outcome in patients with anti-GABAA receptor (GABAAR) encephalitis. METHODS: Clinical study of 26 patients, including 17 new (April 2013-January 2016) and 9 previously reported patients. Antibodies to α1, β3, and γ2 subunits of the GABAAR were determined using reported techniques. RESULTS: Patients' median age was 40.5 years (interquartile range 48...
February 15, 2017: Neurology
https://www.readbyqxmd.com/read/28199191/trans-synaptic-homeostasis-at-the-myasthenic-neuromuscular-junction
#14
Jaap J Plomp
Properly sustained impulse transmission at the neuromuscular junction (NMJ) is crucial for successful muscle contraction. To guarantee this, NMJs not only possess a considerable safety factor in transmission but also have the ability to adjust the presynaptic acetylcholine release level to cope with any changes in the postsynaptic neurotransmitter sensitivity. This review will provide overview on the discovery and characterization of this synaptic homeostatic mechanism, especially in the condition of the neuromuscular disorder myasthenia gravis (MG) where the postsynaptic transmitter sensitivity at the NMJ becomes severely reduced due to autoimmune attack of acetylcholine receptors...
March 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28194064/therapeutic-plasma-exchange-in-patients-with-neurologic-disorders-review-of-63-cases
#15
Anil Tombak, Mehmet Ali Uçar, Aydan Akdeniz, Arda Yilmaz, Hakan Kaleagası, Mehmet Ali Sungur, Eyup Naci Tiftik
Therapeutic plasma exchange (TPE) is a procedure that reduces circulating autoantibodies of the patients. TPE is commonly used in neurological disorders where autoimmunity plays a major role. We report our experience with regard to the indications, adverse events and outcomes of plasma exchange in neurological disorders. Sixty-three patients were included to this retrospective study. Median age was 48 years (range 1-85), there was a predominance of males. Neurological indications included Guillain-Barrè syndrome (n = 22), myasthenia gravis (n = 21), chronic inflammatory demyelinating polyneuropathy (n = 7), polymyositis (n = 3), multifocal motor neuropathy (n = 2), acute disseminated encephalomyelitis (n = 2), neuromyelitis optica (n = 2), multiple sclerosis (n = 2), limbic encephalitis (n = 1) and transverse myelitis (n = 1)...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28188305/zika-virus-infection-and-myasthenia-gravis-report-of-2-cases
#16
Nicolas Molko, Olivier Simon, David Guyon, Antoine Biron, Myrielle Dupont-Rouzeyrol, Ann-Claire Gourinat
No abstract text is available yet for this article.
February 10, 2017: Neurology
https://www.readbyqxmd.com/read/28188302/vesicular-acetylcholine-transporter-defect-underlies-devastating-congenital-myasthenia-syndrome
#17
Adi Aran, Reeval Segel, Kota Kaneshige, Suleyman Gulsuner, Paul Renbaum, Scott Oliphant, Tomer Meirson, Ariella Weinberg-Shukron, Yair Hershkovitz, Sharon Zeligson, Ming K Lee, Abraham O Samson, Stanley M Parsons, Mary-Claire King, Ephrat Levy-Lahad, Tom Walsh
OBJECTIVE: To identify the genetic basis of a recessive congenital neurologic syndrome characterized by severe hypotonia, arthrogryposis, and respiratory failure. METHODS: Identification of the responsible gene by exome sequencing and assessment of the effect of the mutation on protein stability in transfected rat neuronal-like PC12(A123.7) cells. RESULTS: Two brothers from a nonconsanguineous Yemeni Jewish family manifested at birth with severe hypotonia and arthrogryposis...
February 10, 2017: Neurology
https://www.readbyqxmd.com/read/28185979/subclinical-cardiac-involvement-in-thymomatous-myasthenia-gravis
#18
Elias Giallafos, Vasiliki Zouvelou, Sofia Maurogeni, Eleutherios Stamboulis
No abstract text is available yet for this article.
February 6, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28181271/extrapolated-reference-values-e-ref-theory-algorithm-and-results-in-patients-control-subjects
#19
Sanjeev D Nandedkar, Donald B Sanders, Lisa D Hobson-Webb, Santoshi Billlakota, Paul E Barkhaus, Erik V Stålberg
INTRODUCTION: Reference values (RVs) are required to separate normal from abnormal values obtained in electrodiagnostic (EDX) testing. However, it is frequently impractical to perform studies on control subjects to obtain RVs. The Extrapolated Reference Values (E-Ref) procedure extracts RVs from data obtained during clinically indicated EDX testing. We compared the E-Ref results with established RVs in several sets of EDX data. METHODS: The mathematical basis for E-Ref was explored to develop an algorithm for the E-Ref procedure...
February 9, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28180109/multiple-thymoma-with-myasthenia-gravis
#20
Dong Hyun Seo, Sukki Cho
The actual incidence of multiple thymoma is unknown and rarely reported because it remains controversial whether the cases represent a disease of multicentric origin or a disease resulting from intrathymic metastasis. In this case, a patient underwent total thymectomy for multiple thymoma with myasthenia gravis via bilateral video-assisted thoracic surgery. A well-encapsulated multinodular cystic mass, measuring 57 mm×50 mm×22 mm in the right lobe of the thymus, and a well-encapsulated mass, measuring 32 mm×15 mm×14 mm in the left lobe, were found...
February 2017: Korean Journal of Thoracic and Cardiovascular Surgery
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