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Dziadkowiak E, Nowakowska-Kotas M, Rałowska-Gmoch W, Budrewicz S, Koszewicz M. Molecular, Electrophysiological, and Ultrasonographic Differences in Selected Immune-Mediated Neuropathies with Therapeutic Implications. Int J Mol Sci 2023; 24:ijms24119180. [PMID: 37298132 DOI: 10.3390/ijms24119180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/16/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
The spectrum of immune-mediated neuropathies is broad and the different subtypes are still being researched. With the numerous subtypes of immune-mediated neuropathies, establishing the appropriate diagnosis in normal clinical practice is challenging. The treatment of these disorders is also troublesome. The authors have undertaken a literature review of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), Guillain-Barre syndrome (GBS) and multifocal motor neuropathy (MMN). The molecular, electrophysiological and ultrasound features of these autoimmune polyneuropathies are analyzed, highlighting the differences in diagnosis and ultimately treatment. The immune dysfunction can lead to damage to the peripheral nervous system. In practice, it is suspected that these disorders are caused by autoimmunity to proteins located in the node of Ranvier or myelin components of peripheral nerves, although disease-associated autoantibodies have not been identified for all disorders. The electrophysiological presence of conduction blocks is another important factor characterizing separate subgroups of treatment-naive motor neuropathies, including multifocal CIDP (synonyms: multifocal demyelinating neuropathy with persistent conduction block), which differs from multifocal motor neuropathy with conduction block (MMN) in both responses to treatment modalities and electrophysiological features. Ultrasound is a reliable method for diagnosing immune-mediated neuropathies, particularly when alternative diagnostic examinations yield inconclusive results. In overall terms, the management of these disorders includes immunotherapy such as corticosteroids, intravenous immunoglobulin or plasma exchange. Improvements in clinical criteria and the development of more disease-specific immunotherapies should expand the therapeutic possibilities for these debilitating diseases.
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Affiliation(s)
- Edyta Dziadkowiak
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Marta Nowakowska-Kotas
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Wiktoria Rałowska-Gmoch
- Department of Neurology, The St. Jadwiga's Regional Specialist Neuropsychiatric Centre, Wodociągowa 4, 45-221 Opole, Poland
| | - Sławomir Budrewicz
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Magdalena Koszewicz
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
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Suresh K, Mereddy P, Lanciano N, Alam MDU. Anti-ganglioside Complex IgM Antibodies in Multifocal Motor Neuropathy Post-influenza Vaccination. Cureus 2022; 14:e22918. [PMID: 35399455 PMCID: PMC8985558 DOI: 10.7759/cureus.22918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2022] [Indexed: 11/05/2022] Open
Abstract
Multifocal motor neuropathy (MMN) is a peripheral nerve disorder characterized by progressive, predominantly distal, asymmetric limb weakness with minimal or no sensory impairment, and characterized by the presence of antibodies (30-80% cases), mostly IgM, to the gangliosides, mainly ganglioside monosialic acid (GM1). We describe a case of MMN in a patient who developed symptoms of paresthesia and extremity weakness a few days after receiving the influenza vaccine and was found to have high titers of anti-GM1 IgM antibody levels. He was initially treated with intravenous immune globulin (IVIG) which is one of the mainstays of treatment but relapsed and was then successfully treated with plasma exchange.
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El-Abassi RN, Soliman M, Levy MH, England JD. Treatment and Management of Autoimmune Neuropathies. Neuromuscul Disord 2022. [DOI: 10.1016/b978-0-323-71317-7.00015-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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4
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Doneddu PE, Dentoni M, Nobile-Orazio E. Atypical chronic inflammatory demyelinating polyradiculoneuropathy: recent advances on classification, diagnosis, and pathogenesis. Curr Opin Neurol 2021; 34:613-624. [PMID: 34267052 PMCID: PMC9914159 DOI: 10.1097/wco.0000000000000979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE OF REVIEW In recent years, there has been an intense debate in literature regarding the definition of the individual variants of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), their possible pathogenetic mechanisms, and impact in the diagnosis of CIDP. RECENT FINDINGS The 2021 European Federation of Neurological Societies/Peripheral Nerve Society (EFNS/PNS) guidelines revised the definition of the individual CIDP variants and implemented their diagnostic criteria. Diagnosis of atypical CIDP is challenging and misdiagnosis is frequent, leading to diagnostic delay and consequent greater accumulation of disability and treatment dependency. Recent studies suggest that patients with typical CIDP have an antibody-mediated mechanism of neuropathy whereas in those with Lewis--Sumner syndrome (LSS) neuropathy is preferentially mediated by macrophages and T cells. SUMMARY Although the validity of the 2021 EFNS/PNS diagnostic criteria for atypical CIDP is unknown, they will hopefully lead to greater uniformity in the selection of patients to be enrolled in future studies and to a greater diagnostic accuracy. New data are emerging on the possible pathological mechanisms of individual variants and this could result in the discovery of specific diagnostic biomarkers and new therapies.
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Affiliation(s)
- Pietro Emiliano Doneddu
- Neuromuscular Diseases and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Institute, Rozzano
| | - Marta Dentoni
- Neuromuscular Diseases and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Institute, Rozzano
- Department of Medical Biotechnology and Translational Medicine, Milan University, Milan, Italy
| | - Eduardo Nobile-Orazio
- Neuromuscular Diseases and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Institute, Rozzano
- Department of Medical Biotechnology and Translational Medicine, Milan University, Milan, Italy
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Querol L, Lleixà C. Novel Immunological and Therapeutic Insights in Guillain-Barré Syndrome and CIDP. Neurotherapeutics 2021; 18:2222-2235. [PMID: 34549385 PMCID: PMC8455117 DOI: 10.1007/s13311-021-01117-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/02/2021] [Indexed: 12/22/2022] Open
Abstract
Inflammatory neuropathies are a heterogeneous group of rare diseases of the peripheral nervous system that include acute and chronic diseases, such as Guillain-Barré syndrome (GBS) and chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). The etiology and pathophysiological mechanisms of inflammatory neuropathies are only partly known, but are considered autoimmune disorders in which an aberrant immune response, including cellular and humoral components, is directed towards components of the peripheral nerve causing demyelination and axonal damage. Therapy of these disorders includes broad-spectrum immunomodulatory and immunosuppressive treatments, such as intravenous immunoglobulin, corticosteroids, or plasma exchange. However, a significant proportion of patients do not respond to any of these therapies, and treatment selection is not optimized according to disease pathophysiology. Therefore, research on disease pathophysiology aiming to reveal clinically and functionally relevant disease mechanisms and the development of new treatment approaches are needed to optimize disease outcomes in CIDP and GBS. This topical review describes immunological progress that may help guide therapeutic strategies in the future in these two disorders.
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Affiliation(s)
- Luis Querol
- Neuromuscular Diseases Unit, Department of Neurology, Hospital de La Santa Creu I Sant Pau, Universitat Autònoma de Barcelona, Mas Casanovas 90, 08041, Barcelona, Spain.
- Centro Para La Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Madrid, Spain.
| | - Cinta Lleixà
- Neuromuscular Diseases Unit, Department of Neurology, Hospital de La Santa Creu I Sant Pau, Universitat Autònoma de Barcelona, Mas Casanovas 90, 08041, Barcelona, Spain
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Abstract
Spondylotic myelopathies are among the most common disorders of the spine, yet the clinical and treatment approach is far from standardized. This article discusses our current understanding of the epidemiology, pathophysiology, clinical assessment, natural history, and treatment options in degenerative myelopathies of the cervical and thoracic spine. We additionally review diagnostic modalities including imaging modalities of the spine and neurophysiological tools such as electromyography/nerve conduction studies, somatosensory-evoked potentials, and motor-evoked potentials. Assessment instruments that can be used for the assessment of myelopathies are reviewed, including the Japanese Orthopedic Association (JOA) score, modified-JOA scale, Nurick scale, nine-hole peg test, and 30-m walking test. We also review common disorders that mimic spondylotic myelopathies, as well as helpful diagnostic clues in differentiating spondylotic and nonspondylotic myelopathies.
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Affiliation(s)
- Ligia V Onofrei
- Department of Neurology, University of Utah, Salt Lake City, UT
| | - A Michael Henrie
- Department of Physical Medicine and Rehabilitation, University of Utah, UT
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7
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Different distributions of nerve demyelination in chronic acquired multifocal polyneuropathies. Chin Med J (Engl) 2020; 133:2558-2564. [PMID: 32947359 PMCID: PMC7722580 DOI: 10.1097/cm9.0000000000001073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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8
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Fargeot G, Maisonobe T, Psimaras D, Debs R, Lenglet T, Adams D, Vandendries C, Labeyrie C, Viala K. Comparison of Lewis-Sumner syndrome with chronic inflammatory demyelinating polyradiculoneuropathy patients in a tertiary care centre. Eur J Neurol 2019; 27:522-528. [PMID: 31574194 DOI: 10.1111/ene.14101] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 09/27/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Whether the Lewis-Sumner syndrome (L-SS) is a distinct entity from other types of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP-ot) remains controversial. METHOD The clinical/electrophysiological characteristics and long-term outcomes of 45 L-SS and 35 CIDP-ot patients were retrospectively compared. RESULTS The CIDP-ot group was composed of 11 patients with a typical CIDP, 17 with a pure sensory form, four with a distal form and three with a pure motor form. In the L-SS group, asymmetric (P < 0.001) and monomelic involvement (P = 0.04) of the upper limbs (P < 0.001) was significantly more frequent; paucisymptomatic forms (Overall Neuropathy Limitations Scale ≤ 1) were less frequent (P < 0.001); electroneuromyography showed that conduction block in intermediate nerve segments was the main demyelinating feature, with frequent F-wave abnormalities on nerves without conduction block (44%). Long-term prognosis was globally poorer in the L-SS group with more frequent aggravation during treatment (P = 0.02), less frequent treatment withdrawal (P = 0.03) and longer time to achieve successful withdrawal (39 vs. 15 months). CONCLUSIONS Our study suggests that L-SS patients have a less favourable therapeutic response rate and long-term outcomes. Rapid differentiation of L-SS from other forms of CIDP is important in order to anticipate a more complicated disease course management, with from one side the inefficacy or even harmfulness of corticosteroids and from the other side a difficult weaning procedure. A prospective study is necessary to confirm these results.
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Affiliation(s)
- G Fargeot
- CRMR Neuropathies Périphériques Rares, INSERM U1195, Hôpital Bicêtre, APHP, Le Kremlin Bicêtre, France
| | - T Maisonobe
- Département de Neurophysiologie Clinique, Hôpital Pitié Salpêtrière, APHP, Paris, France
| | - D Psimaras
- Département de Neurophysiologie Clinique, Hôpital Pitié Salpêtrière, APHP, Paris, France
| | - R Debs
- Département de Neurophysiologie Clinique, Hôpital Pitié Salpêtrière, APHP, Paris, France
| | - T Lenglet
- Département de Neurophysiologie Clinique, Hôpital Pitié Salpêtrière, APHP, Paris, France
| | - D Adams
- CRMR Neuropathies Périphériques Rares, INSERM U1195, Hôpital Bicêtre, APHP, Le Kremlin Bicêtre, France
| | - C Vandendries
- Service d'imagerie, Fondation Ophtalmologique Adolphe de Rothschild, APHP, Paris, France
| | - C Labeyrie
- CRMR Neuropathies Périphériques Rares, INSERM U1195, Hôpital Bicêtre, APHP, Le Kremlin Bicêtre, France
| | - K Viala
- Département de Neurophysiologie Clinique, Hôpital Pitié Salpêtrière, APHP, Paris, France
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Abstract
Intravenous immunoglobulin (IVIg) is used in the treatment of autoimmune diseases, including immune-mediated central and peripheral nervous system disorders. This article will review the indications, proposed mechanism of actions, and administration of immunoglobulin treatment in various neuropathies, neuromuscular junction disorders, and myopathies. IVIg may have more than one mechanism of action to alter the pathogenesis of underlying neuromuscular disease. IVIg treatment has been used as a first-line treatment in Guillain-Barre syndrome, chronic inflammatory demyelinating polyradiculoneuropathy, multifocal motor neuropathy, and second-line off-label treatment in medically refractory cases of polymyositis, dermatomyositis, and myasthenia gravis. IVIg is a well-tolerated and effective treatment for these neuromuscular diseases. With this review article, we hope to increase clinicians' awareness of the indications and efficiencies of IVIg in a broad spectrum of neuromuscular diseases.
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Affiliation(s)
- Ahmet Z Burakgazi
- Department of Internal Medicine, Neuroscience Section, Virginia Tech Carilion School of Medicine, Carilion Clinic Neurology, Roanoke, VA
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10
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Doneddu PE, Cocito D, Manganelli F, Fazio R, Briani C, Filosto M, Benedetti L, Mazzeo A, Marfia GA, Cortese A, Fierro B, Jann S, Beghi E, Clerici AM, Carpo M, Schenone A, Luigetti M, Lauria G, Antonini G, Rosso T, Siciliano G, Cavaletti G, Liberatore G, Santoro L, Peci E, Tronci S, Ruiz M, Cotti Piccinelli S, Toscano A, Mataluni G, Piccolo L, Cosentino G, Sabatelli M, Nobile-Orazio E. Atypical CIDP: diagnostic criteria, progression and treatment response. Data from the Italian CIDP Database. J Neurol Neurosurg Psychiatry 2019; 90:125-132. [PMID: 30297520 DOI: 10.1136/jnnp-2018-318714] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 08/01/2018] [Accepted: 08/17/2018] [Indexed: 11/03/2022]
Abstract
OBJECTIVES A few variants of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) have been described, but their frequency and evolution to typical CIDP remain unclear. To determine the frequency and characteristics of the CIDP variants, their possible evolution to typical CIDP, and treatment response. METHODS We applied a set of diagnostic criteria to 460 patients included in a database of Italian patients with CIDP. Clinical characteristics and treatment response were reviewed for each patient. The Kaplan-Meier curve was used to estimate the progression rate from atypical to typical CIDP. RESULTS At the time of inclusion, 376 (82%) patients had a diagnosis of typical CIDP while 84 (18%) had atypical CIDP, including 34 (7%) with distal acquired demyelinating symmetric neuropathy (DADS), 17 (4%) with purely motor, 17 (4%) with Lewis-Sumner syndrome (LSS) and 16 (3.5%) with purely sensory CIDP. Based on retrospective review of the symptoms and signs present at onset and for at least 1 year, 180 (39%) patients had an initial diagnosis compatible with atypical CIDP that in 96 (53%) patients evolved to typical CIDP. Mean disease duration was longer in patients evolving to typical CIDP than in those not evolving (p=0.0016). Patients with DADS and LSS had a less frequent response to immunoglobulin than those with typical CIDP, while patients with purely motor and sensory CIDP had a similar treatment response. CONCLUSIONS The proportion of patients with atypical CIDP varies during the disease course. DADS and LSS have a less frequent response to intravenous immunoglobulin compared with typical CIDP, raising the possibility of a different underlying pathogenetic mechanism.
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Affiliation(s)
- Pietro Emiliano Doneddu
- Neuromuscular and Neuroimmunology Service, Humanitas Clinical and Research Institute, Rozzano, Italy
| | - Dario Cocito
- Department of Neuroscience, University of Turin, Turin, Italy
| | - Fiore Manganelli
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples 'Federico II', Naples, Italy
| | - Raffaella Fazio
- Division of Neuroscience, Department of Neurology, Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, Milan, Italy
| | - Chiara Briani
- Neurology Unit, Department of Neuroscience, University of Padua, Padua, Italy
| | - Massimiliano Filosto
- Center for Neuromuscular Diseases and Neuropathies, Unit of Neurology, ASST 'Spedali Civili', University of Brescia, Brescia, Italy
| | | | - Anna Mazzeo
- Department of Clinical and Experimental Medicine, Unit of Neurology, University of Messina, Messina, Italy
| | - Girolama Alessandra Marfia
- Dysimmune Neuropathies Unit, Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Andrea Cortese
- IRCCS Foundation C. Mondino National Neurological Institute, Pavia, Italy
| | - Brigida Fierro
- Department of Experimental BioMedicine and Clinical Neurosciences (BioNeC), University of Palermo, Palermo, Italy
| | - Stefano Jann
- Department of Neuroscience, Niguarda Ca' Granda Hospital, Milan, Italy
| | - Ettore Beghi
- Laboratorio di Malattie Neurologiche, IRCCS-Istituto Mario Negri, Milan, Italy
| | - Angelo Maurizio Clerici
- Neurology Unit, Circolo and Macchi Foundation Hospital, Insubria University, DBSV, Varese, Italy
| | | | - Angelo Schenone
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa and IRCCS AOU San Martino-IST, Genoa, Italy
| | - Marco Luigetti
- Unit of Neurology, IRCCS Foundation Policlinico A. Gemelli, Rome, Italy
| | - Giuseppe Lauria
- Unit of Neuroalgology, IRCCS Foundation 'Carlo Besta' Neurological Institute, Milan, Italy.,Department of Biomedical and Clinical Sciences 'Luigi Sacco', University of Milan, Milan, Italy
| | - Giovanni Antonini
- Unit of Neuromuscular Diseases, Department of Neurology Mental Health and Sensory Organs (NESMOS), Faculty of Medicine and Psychology, 'Sapienza' University of Rome, Sant'Andrea Hospital, Rome, Italy
| | - Tiziana Rosso
- ULSS2 Marca Trevigiana, UOC Neurologia-Castelfranco Veneto, Treviso, Italy
| | - Gabriele Siciliano
- Neurology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Guido Cavaletti
- School of Medicine and Surgery and Experimental Neurology Unit, University of Milano-Bicocca, Monza, Italy
| | - Giuseppe Liberatore
- Neuromuscular and Neuroimmunology Service, Humanitas Clinical and Research Institute, Rozzano, Italy
| | - Lucio Santoro
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples 'Federico II', Naples, Italy
| | - Erdita Peci
- Department of Neuroscience, University of Turin, Turin, Italy
| | - Stefano Tronci
- Division of Neuroscience, Department of Neurology, Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, Milan, Italy
| | - Marta Ruiz
- Neurology Unit, Department of Neuroscience, University of Padua, Padua, Italy
| | - Stefano Cotti Piccinelli
- Center for Neuromuscular Diseases and Neuropathies, Unit of Neurology, ASST 'Spedali Civili', University of Brescia, Brescia, Italy
| | - Antonio Toscano
- Department of Clinical and Experimental Medicine, Unit of Neurology, University of Messina, Messina, Italy
| | - Giorgia Mataluni
- Dysimmune Neuropathies Unit, Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Laura Piccolo
- IRCCS Foundation C. Mondino National Neurological Institute, Pavia, Italy
| | - Giuseppe Cosentino
- Department of Experimental BioMedicine and Clinical Neurosciences (BioNeC), University of Palermo, Palermo, Italy
| | - Mario Sabatelli
- Unit of Neurology, IRCCS Foundation Policlinico A. Gemelli, Rome, Italy.,NEuroMuscular Omnicentre (NEMO), Serena Onlus, Foundation-Pol. A. Gemelli, Rome, Italy
| | - Eduardo Nobile-Orazio
- Neuromuscular and Neuroimmunology Service, Humanitas Clinical and Research Institute, Rozzano, Italy .,Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
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Bowley MP, Chad DA. Clinical neurophysiology of demyelinating polyneuropathy. HANDBOOK OF CLINICAL NEUROLOGY 2019; 161:241-268. [DOI: 10.1016/b978-0-444-64142-7.00052-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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12
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İnan R, Barut BÖ, Serim A, Börü ÜT. Hypoglossal nerve involvement in Lewis-Sumner syndrome: a case report. Acta Neurol Belg 2018; 118:323-325. [PMID: 29511978 DOI: 10.1007/s13760-018-0909-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 03/02/2018] [Indexed: 10/17/2022]
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13
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Martinez-Thompson JM, Snyder MR, Ettore M, McKeon A, Pittock SJ, Roforth MM, Mandrekar J, Mauermann ML, Taylor BV, Dyck PJB, Windebank AJ, Klein CJ. Composite ganglioside autoantibodies and immune treatment response in MMN and MADSAM. Muscle Nerve 2018; 57:1000-1005. [DOI: 10.1002/mus.26051] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2017] [Indexed: 12/14/2022]
Affiliation(s)
| | - Melissa R. Snyder
- Department of Laboratory Medicine and Pathology; Mayo Clinic and Mayo Foundation; Rochester Minnesota USA
| | - Michael Ettore
- Department of Laboratory Medicine and Pathology; Mayo Clinic and Mayo Foundation; Rochester Minnesota USA
| | - Andrew McKeon
- Department of Neurology; 200 First Street Southwest Rochester Minnesota 55905 USA
- Division of Autoimmune Neurology; Mayo Clinic and Mayo Foundation; Rochester Minnesota USA
| | - Sean J. Pittock
- Department of Neurology; 200 First Street Southwest Rochester Minnesota 55905 USA
- Division of Autoimmune Neurology; Mayo Clinic and Mayo Foundation; Rochester Minnesota USA
| | - Matthew M. Roforth
- Department of Neurology; 200 First Street Southwest Rochester Minnesota 55905 USA
| | - Jay Mandrekar
- Division of Biostatistics; Mayo Clinic and Mayo Foundation; Rochester Minnesota USA
| | | | - Bruce V. Taylor
- Menzies Institute for Medical Research; University of Tasmania; Tasmania Australia
| | - P. James B. Dyck
- Department of Neurology; 200 First Street Southwest Rochester Minnesota 55905 USA
| | - Anthony J. Windebank
- Department of Neurology; 200 First Street Southwest Rochester Minnesota 55905 USA
| | - Christopher J. Klein
- Department of Neurology; 200 First Street Southwest Rochester Minnesota 55905 USA
- Department of Laboratory Medicine and Pathology; Mayo Clinic and Mayo Foundation; Rochester Minnesota USA
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Antibodies against peripheral nerve antigens in chronic inflammatory demyelinating polyradiculoneuropathy. Sci Rep 2017; 7:14411. [PMID: 29089585 PMCID: PMC5663697 DOI: 10.1038/s41598-017-14853-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 10/17/2017] [Indexed: 01/01/2023] Open
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a heterogeneous disease in which diverse autoantibodies have been described but systematic screening has never been performed. Detection of CIDP-specific antibodies may be clinically useful. We developed a screening protocol to uncover novel reactivities in CIDP. Sixty-five CIDP patients and 28 controls were included in our study. Three patients (4.6%) had antibodies against neurofascin 155, four (6.2%) against contactin-1 and one (1.5%) against the contactin-1/contactin-associated protein-1 complex. Eleven (18.6%) patients showed anti-ganglioside antibodies, and one (1.6%) antibodies against peripheral myelin protein 2. No antibodies against myelin protein zero, contactin-2/contactin-associated protein-2 complex, neuronal cell adhesion molecule, gliomedin or the voltage-gated sodium channel were detected. In IgG experiments, three patients (5.3%) showed a weak reactivity against motor neurons; 14 (24.6%) reacted against DRG neurons, four of them strongly (7.0%), and seven (12.3%) reacted against Schwann cells, three of them strongly (5.3%). In IgM experiments, six patients (10.7%) reacted against DRG neurons, while three (5.4%) reacted against Schwann cells. However, results were not statistically significant when compared to controls. Immunoprecipitation experiments identified CD9 and L1CAM as potential antigens, but reactivity could not be confirmed with cell-based assays. In summary, we describe a diverse autoantibody repertoire in CIDP patients, reinforcing the hypothesis of CIDP’s pathophysiological heterogeneity.
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Lechien JR, Finck C. Lewis-Sumner Syndrome Manifesting as Unilateral Vocal Fold Paresis and Laryngeal Fasciculations. J Voice 2017; 32:356-358. [PMID: 28781097 DOI: 10.1016/j.jvoice.2017.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/22/2017] [Accepted: 05/25/2017] [Indexed: 10/19/2022]
Abstract
Lewis-Sumner syndrome (LSS) is a rare disease characterized by asymmetrical and multifocal mononeuropathy commonly located in the upper limbs. Some rare cases affecting cranial nerve have been described, but LSS is unknown to affect especially laryngeal nerves. This paper presents the first case of unilateral vocal fold paresis caused by an LSS in a 59-year-old man complaining of dysphonia, breathy voice, and vocal fatigue. Epidemiology, clinical features, diagnosis, and treatment will be described.
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Affiliation(s)
- Jérôme R Lechien
- Laboratory of Phonetics, Faculty of Psychology, Research Institute for Language Sciences and Technology, University of Mons (UMONS), Mons, Belgium; Laboratory of Anatomy and Cell Biology, Faculty of Medicine, Research Institute for Health Sciences and Technology, University of Mons (UMONS), Mons, Belgium.
| | - Camille Finck
- Laboratory of Phonetics, Faculty of Psychology, Research Institute for Language Sciences and Technology, University of Mons (UMONS), Mons, Belgium; Department of Otolaryngology and Head and Neck Surgery, CHU de Liège, Liège, Belgium
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16
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Neuropatie motorie multifocali con blocco della conduzione. Neurologia 2017. [DOI: 10.1016/s1634-7072(17)85563-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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17
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Asymmetric sensory nerve action potential amplitudes as an early hint for diagnosing Lewis-Sumner syndrome. Acta Neurol Belg 2017; 117:565-567. [PMID: 27709506 DOI: 10.1007/s13760-016-0708-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 09/29/2016] [Indexed: 10/20/2022]
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18
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Motor neuropathies and lower motor neuron syndromes. Rev Neurol (Paris) 2017; 173:320-325. [DOI: 10.1016/j.neurol.2017.03.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/16/2017] [Accepted: 03/29/2017] [Indexed: 12/13/2022]
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19
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Therapeutic plasma exchange in chronic dysimmune peripheral neuropathies: A 10-year retrospective study. J Clin Apher 2017; 32:413-422. [DOI: 10.1002/jca.21530] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 02/05/2017] [Accepted: 02/08/2017] [Indexed: 12/14/2022]
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20
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Gooneratne IK, Naidu L, Wimalaratna S. Lewis Sumner Syndrome with focal muscle hypertrophy and central demyelination. eNeurologicalSci 2017. [DOI: 10.1016/j.ensci.2017.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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21
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Ikenoshita S, Yamashita S, Sakamoto T, Misumi Y, Ando Y. Hemiatrophy of the Tongue with Contralateral Hemiparesis in a Patient with Multifocal Acquired Demyelinating Sensory and Motor Neuropathy. J Clin Neurol 2017; 13:422-423. [PMID: 28831789 PMCID: PMC5653631 DOI: 10.3988/jcn.2017.13.4.422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 02/10/2017] [Accepted: 02/13/2017] [Indexed: 11/17/2022] Open
Affiliation(s)
- Susumu Ikenoshita
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Satoshi Yamashita
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuro Sakamoto
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yohei Misumi
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yukio Ando
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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22
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Illes Z, Blaabjerg M. Cerebrospinal fluid findings in Guillain-Barré syndrome and chronic inflammatory demyelinating polyneuropathies. HANDBOOK OF CLINICAL NEUROLOGY 2017; 146:125-138. [PMID: 29110767 DOI: 10.1016/b978-0-12-804279-3.00009-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The classic immunologic alteration of the cerebrospinal fluid (CSF) in Guillain-Barré syndrome (GBS), albuminocytologic dissociation, has been known since the original paper by Guillain, Barré, and Strohl. Albuminocytologic dissociation has been also described in other forms of the GBS spectrum, such as axonal motor or motor-sensory forms (AMAN, AMSAN), the anti-GQ1b spectrum of Miller Fisher syndrome, and Bickerstaff brainstem encephalitis. Cytokines, chemokines, antibodies, complement components, and molecules with a putative neuroprotective role or indicating axonal damage have also been examined using different methods. Besides these candidate approaches, proteomics has been recently applied to discover potential biomarkers. The overall results support the immunopathogenesis of GBS, but albuminocytologic dissociation remained the only consistent CSF biomarker supporting the diagnosis of GBS. Chronic inflammatory neuropathies also comprise a heterogeneous group of diseases. Increased protein in the CSF is a supportive factor of chronic inflammatory demyelinating polyneuropathy, especially in the absence of definite electrophysiologic criteria. A number of other markers have also been investigated in the CSF of patients with chronic inflammatory neuropathies, similar to GBS. However, none has been used in supporting diagnosis, differentiating among syndromes, or predicting the clinical course and treatment responses.
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Affiliation(s)
- Zsolt Illes
- Department of Neurology, Odense University Hospital, Odense, Denmark; Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.
| | - Morten Blaabjerg
- Department of Neurology, Odense University Hospital, Odense, Denmark; Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
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23
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Lewis-Sumner syndrome associated with infliximab therapy in ulcerative colitis. Neurol Sci 2016; 37:1005-8. [PMID: 26838522 DOI: 10.1007/s10072-016-2490-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/18/2016] [Indexed: 10/22/2022]
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24
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Nobile-Orazio E. Chronic inflammatory demyelinating polyradiculoneuropathy and variants: where we are and where we should go. J Peripher Nerv Syst 2014; 19:2-13. [PMID: 24612201 DOI: 10.1111/jns5.12053] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a chronic and often disabling sensory motor neuropathy postulated as caused by an immune attack against peripheral nerve myelin. In addition to a classic sensory–motor polyneuropathy, other phenotypes of CIDP have been described including the Lewis- Sumner syndrome, distal acquired demyelinating symmetric (DADS) neuropathy, pure motor CIDP, pure sensory CIDP including chronic immune sensory polyradiculopathy (CISP), and focal CIDP. These phenotypes are currently considered to be variants of CIDP, even if the possibility that they represent different demyelinating neuropathies cannot be fully excluded considering differences in their response to therapy. Several data support the role of the immune system in the pathogenesis of CIDP even if the precise targets and actors (antibodies and lymphocytes) of this immune response remain uncertain. Recent studies have shown that the therapeutic response may differ in patients with peculiar clinical presentations supporting the hypothesis that different pathogenetic mechanisms may underlie the heterogeneity of CIDP. The majority of patients with CIDP show improvement after immune therapies including corticosteroids, plasma exchange, and high-dose intravenous immunoglobulin (IVIg). It remains unclear why none of the other immune therapies that were reported to be variably effective in other immune disorders proved to be effective also in CIDP.
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Rajabally YA, Knopp MJ, Martin-Lamb D, Morlese J. Diagnostic value of MR imaging in the Lewis-Sumner syndrome: a case series. J Neurol Sci 2014; 342:182-5. [PMID: 24825730 DOI: 10.1016/j.jns.2014.04.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 03/25/2014] [Accepted: 04/22/2014] [Indexed: 10/25/2022]
Abstract
Lewis-Sumner syndrome (LSS) is considered a variant of chronic inflammatory demyelinating polyneuropathy (CIDP), which is more frequently described with exclusive upper limb involvement. The diagnosis of LSS is clinical and electrophysiological. However, these are not always obvious and in view of its rarity, the diagnosis may be missed and patients denied effective immunomodulatory therapy. We herein describe the magnetic resonance imaging (MRI) findings in a series of five consecutive patients with a clinical diagnosis of LSS, using T2 STIR (Short Tau Inversion recovery) images without contrast. We demonstrated hyperintensity with or without hypertrophy of cervical roots and/or brachial plexus on the affected side and/or controlaterally which aided diagnostic confirmation. This helped therapeutic decision making regarding immunotherapy in all cases. MR imaging of the cervical spine/brachial plexus with T2 STIR may be helpful in suspected cases of LSS as it represents a very useful additional diagnostic tool.
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Affiliation(s)
- Yusuf A Rajabally
- Department of Neurology, University Hospitals of Leicester, Leicester, United Kingdom; Department of Neurophysiology, University Hospitals of Leicester, Leicester, United Kingdom.
| | - Michael J Knopp
- Department of Neurology, University Hospitals of Leicester, Leicester, United Kingdom
| | - Darren Martin-Lamb
- Department of Neurophysiology, University Hospitals of Leicester, Leicester, United Kingdom
| | - John Morlese
- Department of Radiology, University Hospitals of Leicester, Leicester, United Kingdom
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26
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Dimachkie MM, Barohn RJ. Chronic inflammatory demyelinating polyneuropathy. Curr Treat Options Neurol 2013; 15:350-66. [PMID: 23564314 DOI: 10.1007/s11940-013-0229-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OPINION STATEMENT Chronic Inflammatory polyneuropathies are an important group of neuromuscular disorders that present chronically and progress over more than 8 weeks, being referred to as chronic inflammatory demyelinating polyneuropathy (CIDP). Despite tremendous progress in elucidating disease pathogenesis, the exact triggering event remains unknown. Our knowledge regarding diagnosis and management of CIDP and its variants continues to expand, resulting in improved opportunities for identification and treatment. Most clinical neurologists will be involved in the management of patients with these disorders, and should be familiar with available therapies for CIDP. We review the distinctive clinical, laboratory, and electro-diagnostic features that aid in diagnosis. We emphasize the importance of clinical patterns that define treatment responsiveness and the most appropriate therapies in order to improve prognosis.
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Affiliation(s)
- Mazen M Dimachkie
- Department of Neurology, University of Kansas Medical Center, 3599 Rainbow Blvd., Mail Stop 2012, Kansas City, KS, 66160, USA,
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27
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Multifocal motor neuropathy, multifocal acquired demyelinating sensory and motor neuropathy, and other chronic acquired demyelinating polyneuropathy variants. Neurol Clin 2013; 31:533-55. [PMID: 23642723 DOI: 10.1016/j.ncl.2013.01.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chronic acquired demyelinating neuropathies (CADP) constitute an important group of immune neuromuscular disorders affecting myelin. This article discusses CADP with emphasis on multifocal motor neuropathy, multifocal acquired demyelinating sensory and motor neuropathy, distal acquired demyelinating symmetric neuropathy, and less common variants. Although each of these entities has distinctive laboratory and electrodiagnostic features that aid in their diagnosis, clinical characteristics are of paramount importance in diagnosing specific conditions and determining the most appropriate therapies. Knowledge regarding pathogenesis, diagnosis, and management of these disorders continues to expand, resulting in improved opportunities for identification and treatment.
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Abstract
Multifocal motor neuropathy (MMN) is a rare disorder in which the symptoms are caused by persistent conduction block lesions. The mononeuropathy multiplex progresses over time with increasing axonal loss. The cause of the conduction blocks and axonal loss are not completely understood but immune mechanisms are involved and response to intravenous immunoglobulin has been established. The importance of MMN goes beyond its clinical incidence as the increasing understanding of the pathogenesis of this disorder has implications for other peripheral nerve diseases and for our knowledge of peripheral nerve biology.
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Affiliation(s)
- Ximena Arcila-Londono
- Department of Neurology, Wayne State University School of Medicine, Detroit, Michigan, USA
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29
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Bayas A, Gold R, Naumann M. Long-term treatment of Lewis–Sumner syndrome with subcutaneous immunoglobulin infusions. J Neurol Sci 2013; 324:53-6. [DOI: 10.1016/j.jns.2012.09.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 09/20/2012] [Accepted: 09/28/2012] [Indexed: 10/27/2022]
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30
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Mostoufizadeh S, Souri M, de Seze J. A case of paraneoplastic demyelinating motor polyneuropathy. Case Rep Neurol 2012; 4:71-6. [PMID: 22649345 PMCID: PMC3362224 DOI: 10.1159/000338296] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Peripheral neuropathy is commonly accompanied by cancer but demyelinating ones are not commonly reported. We report the clinical, neurophysiological, and biological characteristics of an 82-year-old patient who presented with a demyelinating motor neuropathy and high titre of anti-ganglioside antibodies associated with oesophageal cancer. The neurological course worsened rapidly despite immunotherapy, leading to a bedridden status. We propose to suspect a paraneoplastic origin in older patients or when the clinical course progresses rapidly within a few weeks or months.
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31
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Vlam L, van der Pol WL, Cats EA, Straver DC, Piepers S, Franssen H, van den Berg LH. Multifocal motor neuropathy: diagnosis, pathogenesis and treatment strategies. Nat Rev Neurol 2011; 8:48-58. [PMID: 22105211 DOI: 10.1038/nrneurol.2011.175] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Attarian S, Verschueren A, Franques J, Salort-Campana E, Jouve E, Pouget J. Response to treatment in patients with lewis-sumner syndrome. Muscle Nerve 2011; 44:179-84. [DOI: 10.1002/mus.22024] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Motor root conduction block in the Lewis-Sumner syndrome. J Clin Neuromuscul Dis 2011; 12:158-62. [PMID: 21321496 DOI: 10.1097/cnd.0b013e31820d4f43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The Lewis-Sumner syndrome (LSS) is a rare immune-mediated peripheral nerve disorder presenting with asymmetric upper limb sensory complaints and motor weakness. Asian patients with LSS have not been reported in the English literature. METHODS Three Asian patients with features of LSS were prospectively studied. RESULTS Our patients tended to older, female, and have involvement of the upper limbs exclusively than those in the West. They have a markedly longer disease duration before a diagnosis was made, which could also be the result of difficulty in eliciting motor root conduction block as a sign of proximal demyelination as observed in every patient. Pain is a universal feature as is sensory nerve conduction abnormality. None responded to immunotherapy, but disease stabilization was observed over the chronic course. CONCLUSIONS Although rare, these unique observations in Asian patients with LSS differ from those reported in Western literature. The presence of motor root conduction block demonstrated for the first time is instrumental in establishing a diagnosis.
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Park YE, Yook JW, Kim DS. A case of Lewis-Sumner syndrome showing dramatic improvement after plasma exchange. J Korean Med Sci 2010; 25:1101-4. [PMID: 20592909 PMCID: PMC2890894 DOI: 10.3346/jkms.2010.25.7.1101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Accepted: 05/04/2009] [Indexed: 11/20/2022] Open
Abstract
We report a patient with Lewis-Sumner syndrome (LSS) who showed an improvement only with plasma exchange (PE). The patient, 32-yr old man, had progressive multifocal motor-sensory deficits with persistent, multiple conduction blocks and marked slowing of NCVs. Nerve pathology supported a diagnosis of demyelinating neuropathy by revealing marked loss of myelinated fibers with inter- and intrafascicular variation. Although the patient was refractory to treatment with corticosteroid and intravenous immunoglobulin, PE produced a dramatic improvement. Our experience strongly proposes that PE should be tried for refractory LSS.
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Affiliation(s)
- Young-Eun Park
- Department of Neurology, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University School of Medicine, Busan, Korea
| | - Ji-Won Yook
- Department of Neurology, Pusan National University School of Medicine, Busan, Korea
| | - Dae-Seong Kim
- Department of Neurology, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University School of Medicine, Busan, Korea
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35
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Rowland LP. Progressive muscular atrophy and other lower motor neuron syndromes of adults. Muscle Nerve 2010; 41:161-5. [PMID: 20082312 DOI: 10.1002/mus.21565] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lewis P Rowland
- Neurological Institute, 710 West 168th St., Columbia University Medical Center, New York, NY 10032, USA.
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36
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Delmont E, Benaïm C, Launay M, Sacconi S, Soriani MH, Desnuelle C. Do patients having a decrease in SNAP amplitude during the course of MMN present with a different condition? J Neurol 2009; 256:1876-80. [DOI: 10.1007/s00415-009-5217-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2009] [Revised: 06/09/2009] [Accepted: 06/09/2009] [Indexed: 10/20/2022]
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37
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Neuropathie motrice multifocale : existe-t-il une altération de la conduction sensitive au long cours ? Une étude rétrospective chez 21 patients. Rev Neurol (Paris) 2009; 165:243-8. [DOI: 10.1016/j.neurol.2008.10.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2008] [Revised: 09/03/2008] [Accepted: 10/08/2008] [Indexed: 11/21/2022]
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38
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Lambrecq V, Krim E, Rouanet-Larrivière M, Lagueny A. Sensory loss in multifocal motor neuropathy: A clinical and electrophysiological study. Muscle Nerve 2009; 39:131-6. [DOI: 10.1002/mus.21163] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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39
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Rajabally YA, Chavada G. Lewis-sumner syndrome of pure upper-limb onset: Diagnostic, prognostic, and therapeutic features. Muscle Nerve 2009; 39:206-20. [DOI: 10.1002/mus.21199] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Magy L. [Diagnostic strategy for chronic inflammatory demyelinating polyradiculoneuropathy. Recommendations of the French working group]. Rev Neurol (Paris) 2008; 164:1063-7. [PMID: 18950823 DOI: 10.1016/j.neurol.2008.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The diagnosis of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) requires a careful clinical and neurophysiological evaluation, often completed by CSF analysis. In numerous cases, this diagnosis is straightforward and leads to rapid initiation of an immunomodulatory treatment. However, some patients are not diagnosed because of atypical clinical and/or neurophysiological features, and do not benefit from a potentially effective treatment. In this context, a working group was composed with the task of establishing recommendations on diagnostic strategies for CIDP in the main clinical situations where this diagnosis may be suspected. We have summarized these recommendations and tried to present them in the form of a decision-making algorithm.
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Affiliation(s)
- L Magy
- Service de neurologie, centre de référence des neuropathies périphériques rares, CHRU Dupuytren, 2, avenue Martin-Luther-King, 87042 Limoges cedex, France
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41
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Hooper DR, Tarnopolsky MA, Baker SK. Lewis-Sumner syndrome associated with infliximab therapy in rheumatoid arthritis. Muscle Nerve 2008; 38:1318-25. [DOI: 10.1002/mus.21051] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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42
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Steck AJ, Czaplinski A, Renaud S. Inflammatory demyelinating neuropathies and neuropathies associated with monoclonal gammopathies: treatment update. Neurotherapeutics 2008; 5:528-34. [PMID: 19019303 PMCID: PMC4514701 DOI: 10.1016/j.nurt.2008.08.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This review focuses on recent data regarding inflammatory demyelinating neuropathies and neuropathies associated with monoclonal gammopathies. We describe both acute and chronic inflammatory neuropathies, and we discuss conditions ranging from mostly cell-mediated to antibody-mediated disorders. These diseases are characterized by proximal and distal sensory motor involvement. Treatments are based on immune-modulation and/or immune-suppression. Work-up sequence and therapeutical modes are discussed in the light of recently published data, with a special interest on new treatment modalities.
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Affiliation(s)
- Andreas J Steck
- Department of Neurology, University of Basel, Basel, Switzerland.
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43
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Wakamoto H, Chisaka A, Inoue N, Nakano N. Childhood multifocal acquired demyelinating sensory and motor neuropathy. Muscle Nerve 2008; 37:790-5. [DOI: 10.1002/mus.21041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Recommendations on diagnostic strategies for chronic inflammatory demyelinating polyradiculoneuropathy. J Neurol Neurosurg Psychiatry 2008; 84:378-81. [PMID: 18202204 DOI: 10.1136/jnnp.2006.109785] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an immune mediated treatable peripheral neuropathy, the diagnosis of which is straightforward in more than half of cases. Numerous sets of electrophysiological criteria have been published. However, in some cases, electrophysiological data are not sufficient and patients that may benefit from treatment escape accurate diagnosis. OBJECTIVE To describe a step by step diagnostic procedure for neurologists facing a peripheral neuropathy of undetermined cause, to help make an accurate diagnosis of CIDP. METHODS A group of French experts was established, neurologists and neurophysiologists being recruited on the basis of personal experience with patients suffering from CIDP and also on publications in the field. A full literature review was conducted on the topic of diagnostic criteria and procedures for the diagnosis of CIDP, and meetings were scheduled to reach a consensus on the best diagnostic workup in different clinical situations. RESULTS Six meetings were conducted and a consensus was reached, based on the available literature and experience in the management of such patients. Discussions resulted in defining five clinical situations in which a diagnosis of CIDP may be considered, and procedures were detailed in each case, including the location of nerve biopsy and use of non-conventional electrophysiological testing and imaging procedures. CONCLUSION The guidelines in the diagnostic procedure reported here result from a consensus of French experts in the field of peripheral neuropathy and allow a diagnosis of CIDP to be made in the most frequently encountered situations. These recommendations may be of value for physicians as they rely on the rational use of available techniques in typical clinical situations.
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Abstract
PURPOSE OF REVIEW Two disorders, Lewis-Sumner syndrome and multifocal motor neuropathy, are defined by the demonstration of conduction block. These two entities have been intertwined since their description but there are important distinctions between them. It is therefore timely to reconsider these disorders and the physiologic process that defines them. RECENT FINDINGS Understanding of the pathophysiology of conduction block has evolved with better understanding of the structure of the node of Ranvier and surrounding apparatus. Axonal excitability studies have begun to give insights into why multifocal motor neuropathy has only motor conduction block. The many published criteria for conduction block vary in sensitivity and specificity and the electromyographer must be aware of the difficulties in determining physiologic block. The distinctions between Lewis-Sumner syndrome and multifocal motor neuropathy have become increasingly clear. Evidence suggests that Lewis-Sumner syndrome is a multifocal variant of chronic inflammatory demyelinating polyneuropathy but that multifocal motor neuropathy is distinct. SUMMARY It is important to recognize the distinctions between these disorders, not only because there are important therapeutic issues, but also because a true understanding of the nature of these illnesses will only be accomplished if the overlaps and differences are carefully considered.
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Affiliation(s)
- Richard Alan Lewis
- Wayne State University School of Medicine, Department of Neurology, Detroit, Michigan 48201, USA.
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46
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Petiot P. Intérêt de l’électroneuromyogramme dans le diagnostic des neuropathies dysimmunes. Rev Neurol (Paris) 2007. [DOI: 10.1016/s0035-3787(07)92158-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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48
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Uzenot D, Azulay JP, Pouget J. Initier le traitement de la PRNC. Rev Neurol (Paris) 2007. [DOI: 10.1016/s0035-3787(07)92163-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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49
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Abstract
In 1975, clinical, electrodiagnostic, and pathologic features defined chronic inflammatory demyelinating polyneuropathy (CIDP). Subsequent reports have made it clear that demyelination is a cardinal feature of teh disorder. Over the past 30 years, variants have been described and associated systemic disorders identified. There continues to be discussion, however, as to how best to define CIDP and classify the disorders that are chronic, acquired, immune mediated, and demyelinating. Understanding the disorders allows clinicians to make appropriate treatment decisions. Some disorders originally considered as variants now are shown to have characteristic features that make them distinct from CIDP. It is imperative to recognize the differences between these disorders.
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Affiliation(s)
- Richard A Lewis
- Wayne State School of Medicine, 8-D University Health Center, 4201 St. Antoine, Detroit, MI 48201, USA.
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50
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Caporale CM, Capasso M, Ragno M, Di Muzio A, Uncini A. Lewis-Sumner syndrome in hepatitis C virus infection: a possible pathogenetic association with therapeutic problems. Muscle Nerve 2006; 34:116-21. [PMID: 16453326 DOI: 10.1002/mus.20517] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A patient with chronic hepatitis from hepatitis C virus (HCV) infection developed Lewis-Sumner syndrome (LSS). The neuropathy worsened after intravenous immunoglobulins, remitted after intravenous methylprednisolone, relapsed during interferon-alpha, but responded again to steroids continued for 68 weeks with clinical remission and without worsening of hepatitis. We are not aware of other reports of HCV infection and LSS. This association may be coincidental or related to a virus-triggered immune-mediated process. Although the coexistence of a dysimmune neuropathy with hepatitis makes problematic the choice of treatment, we emphasize that the patient's condition during treatment with steroids and the 46 following weeks without therapy has been excellent.
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Affiliation(s)
- Christina M Caporale
- Clinica Neurologica, Ospedale Clinicizzato S. S. Annunziata, Via dei Vestini, I-66013 Chieti, Italy
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