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Allen JA. New chronic inflammatory demyelinating polyneuropathy/Guillain-Barré syndrome guidelines - impact on clinical practise. Curr Opin Neurol 2024; 37:455-460. [PMID: 38873801 DOI: 10.1097/wco.0000000000001290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
PURPOSE OF REVIEW There is no diagnostic biomarker that can reliably detect Guillain-Barré syndrome (GBS) or chronic inflammatory demyelinating polyneuropathy (CIDP). Diagnosis relies upon integrating key clinical characteristics and relevant supportive data. Consequently, misdiagnosis and delayed diagnosis are common. Diagnostic criteria have proven valuable resources to improve diagnosis, but are underutilized during routine clinical care. RECENT FINDINGS In 2021, the EAN/PNS CIDP criteria was published, and were followed by the EAN/PNS GBS criteria in 2023. Both guidelines utilized GRADE methodology to formulate evidence-based recommendations that are intended to be used by adult and paediatric clinicians across diverse care settings to optimize diagnostic accuracy and improve patient outcomes during routine clinical care. SUMMARY The EAN/PNS GBS and CIDP criteria detail specific clinical, electrophysiological, and laboratory features that raise diagnostic confidence, and call attention to diagnostic mimics. The sensitivity of EAN/PNS and other modern criteria to detect GBS and CIDP is high, but utilization during clinical practice is low. Complexity is one factor limiting widespread application. Strategies are needed to optimize criteria adoption during routine clinical care such that GBS and CIDP diagnosis can be achieved with greater speed and accuracy.
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Affiliation(s)
- Jeffrey A Allen
- Department of Neurology, University of Minnesota, Minneapolis, Minnesota, USA
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2
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Jones C, Hughes AP. Chronic Inflammatory Demyelinating Polyneuropathy Following Lumbar Spine Surgery in a Patient With Sarcoidosis. Cureus 2024; 16:e64578. [PMID: 39144896 PMCID: PMC11323808 DOI: 10.7759/cureus.64578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2024] [Indexed: 08/16/2024] Open
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is a rare relapsing-remitting autoimmune polyneuropathy that targets peripheral nerves and has been associated in the literature with sarcoidosis. The goal of this study is to report the clinical case of a 61-year-old man with sarcoidosis who developed CIDP following lumbar spine surgery. The patient presented at their clinic visit with lumbar back pain and underwent a dome laminoplasty at L2-3, L3-4, and L4-5 with no known complications. Approximately four hours postoperatively, he developed bilateral lower extremity weakness most prominent along the tibialis anterior and extensor hallucis longus (L4-S1) as well as saddle anesthesia. An MRI revealed no acute changes concerning compression. Electromyography (EMG) was performed six months postoperatively, which revealed absent F waves along the peroneal and tibial nerves as well as decreased amplitude consistent with an underlying axonal neuropathy. He was referred to a neurologist for a second opinion where a diagnosis of CIDP was made. Intravenous immune globulin treatment was initiated, and the patient felt improvement in his symptoms. This case highlights the association between sarcoidosis and CIDP and discusses the pathophysiology of the disease. In patients with sarcoidosis and weakness following lumbar surgery with a negative MRI, CIDP should be on the differential.
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Affiliation(s)
- Conor Jones
- Orthopedic Surgery, Hospital for Special Surgery, New York, USA
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3
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Fathi D, Naraghi A, White LM, Dodig D, Barnett-Tapia C, Breiner A, Bril V, Katzberg HD. Whole-body magnetic resonance neurography in patients with chronic inflammatory demyelinating polyneuropathy. Muscle Nerve 2024; 70:101-110. [PMID: 38698725 DOI: 10.1002/mus.28098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 03/19/2024] [Accepted: 04/14/2024] [Indexed: 05/05/2024]
Abstract
INTRODUCTION/AIMS Whole-body magnetic resonance neurography (MRN) is an imaging modality that shows peripheral nerve signal change in patients with chronic inflammatory demyelinating polyneuropathy (CIDP). We aimed to explore the diagnostic potential of whole-body MRN and its potential as a monitoring tool after immunotherapy in treatment-naïve CIDP patients. METHODS Whole-body MRN using coronal 3-dimensional short tau inversion recovery (STIR) sampling perfection with application-optimized contrasts by using different flip angle evolution (SPACE) techniques was performed in patients being investigated for CIDP and in healthy controls. Baseline clinical neuropathy scales and electrophysiologic parameters were collected, and MRN findings were compared before and after CIDP treatment. RESULTS We found highly concordant symmetrical thickening and increased T2 signal intensities in the brachial/lumbosacral plexus, femoral, or sciatic nerves in five of the eight patients with a final diagnosis of CIDP and none of the healthy controls. There were no treatment-related imaging changes in five patients with CIDP who completed a follow-up study. Diffuse, symmetrical thickening, and increased T2 signal in root, plexus, and peripheral nerves were found in two patients ultimately excluded due to a diagnosis of polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, skin changes (POEMS) syndrome in addition to signal changes in the muscles, bony lesions, organomegaly, and lymphadenopathy. DISCUSSION Whole-body MRN imaging shows promise in detecting abnormalities in proximal nerve segments in patients with CIDP. Future studies evaluating the role of MRN in assessing treatment response should consider follow-up scans after treatment durations of more than 4 months.
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Affiliation(s)
- Davood Fathi
- Section of Neurology, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Ali Naraghi
- Toronto Joint Department of Medical Imaging, Toronto, Ontario, Canada
- Sinai Health System, University Health Network and Women's College Hospital, Department of Medical Imaging, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Lawrence M White
- Toronto Joint Department of Medical Imaging, Toronto, Ontario, Canada
- Sinai Health System, University Health Network and Women's College Hospital, Department of Medical Imaging, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Dubravka Dodig
- Division of Neurology, Department of Medicine, University of Toronto/Toronto Western Hospital, Toronto, Ontario, Canada
| | - Carolina Barnett-Tapia
- Division of Neurology, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Ari Breiner
- Division of Neurology, Department of Medicine, The Ottawa Hospital and Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Vera Bril
- Division of Neurology, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Hans D Katzberg
- Division of Neurology, University Health Network, University of Toronto, Toronto, Ontario, Canada
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4
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Abedi Samakoush M, Davoodi L, Khademian M, Kargar-soleimanabad S, Abedini MA. New-onset chronic inflammatory demyelinating polyradiculoneuropathy after COVID-19 infection: a case report. Ann Med Surg (Lond) 2023; 85:5031-5034. [PMID: 37811109 PMCID: PMC10553086 DOI: 10.1097/ms9.0000000000000352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 02/12/2023] [Indexed: 10/10/2023] Open
Abstract
Introduction and importance SARS-CoV-2 infection, besides respiratory symptoms, as cardinal manifestation, may present with neurological involvement. Immune-mediated polyradiculoneuropathy is one of the important neurological complications manifested by COVID-19 mainly includes Guillain-Barré syndrome (GBS), treatment-related fluctuation of GBS, and chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Also, there are several reports of COVID-19 vaccine-related GBS and CIDP. According to possible severe manifestations of neuropathies like respiratory failure, considering these complications for early diagnosis and treatment is very important. Case presentation The authors presented a 67-year-old woman with severe weakness in upper and lower extremities, the patient was diagnosed as case with CIDP initiated after COVID-19 virus infection and/or vaccination that experienced one relapse in 11 months. In both episodes, treatment with intravenous immunoglobulin started and the patient respond. Clinical discussion To the best of our knowledge, this is one of the first reported cases with a typical chronic course of CIDP associated with COVID-19 virus infection and/or vaccination. Conclusion Considering this complication and differentiation between GBS and CIDP, and then initiating maintenance therapy can prevent long-term disability.
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Affiliation(s)
| | - Lotfollah Davoodi
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, and Department of Infectious Diseases
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5
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Shastri A, Al Aiyan A, Kishore U, Farrugia ME. Immune-Mediated Neuropathies: Pathophysiology and Management. Int J Mol Sci 2023; 24:7288. [PMID: 37108447 PMCID: PMC10139406 DOI: 10.3390/ijms24087288] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 03/12/2023] [Accepted: 03/21/2023] [Indexed: 04/29/2023] Open
Abstract
Dysfunction of the immune system can result in damage of the peripheral nervous system. The immunological mechanisms, which include macrophage infiltration, inflammation and proliferation of Schwann cells, result in variable degrees of demyelination and axonal degeneration. Aetiology is diverse and, in some cases, may be precipitated by infection. Various animal models have contributed and helped to elucidate the pathophysiological mechanisms in acute and chronic inflammatory polyradiculoneuropathies (Guillain-Barre Syndrome and chronic inflammatory demyelinating polyradiculoneuropathy, respectively). The presence of specific anti-glycoconjugate antibodies indicates an underlying process of molecular mimicry and sometimes assists in the classification of these disorders, which often merely supports the clinical diagnosis. Now, the electrophysiological presence of conduction blocks is another important factor in characterizing another subgroup of treatable motor neuropathies (multifocal motor neuropathy with conduction block), which is distinct from Lewis-Sumner syndrome (multifocal acquired demyelinating sensory and motor neuropathy) in its response to treatment modalities as well as electrophysiological features. Furthermore, paraneoplastic neuropathies are also immune-mediated and are the result of an immune reaction to tumour cells that express onconeural antigens and mimic molecules expressed on the surface of neurons. The detection of specific paraneoplastic antibodies often assists the clinician in the investigation of an underlying, sometimes specific, malignancy. This review aims to discuss the immunological and pathophysiological mechanisms that are thought to be crucial in the aetiology of dysimmune neuropathies as well as their individual electrophysiological characteristics, their laboratory features and existing treatment options. Here, we aim to present a balance of discussion from these diverse angles that may be helpful in categorizing disease and establishing prognosis.
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Affiliation(s)
- Abhishek Shastri
- Central and North West London NHS Foundation Trust, London NW1 3AX, UK
| | - Ahmad Al Aiyan
- Department of Veterinary Medicine, UAE University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Uday Kishore
- Department of Veterinary Medicine, UAE University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Maria Elena Farrugia
- Department of Neurology, Institute of Neurological Sciences, Southern General Hospital, Glasgow G51 4TF, UK
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Basta I, Delic N, Gunjic I, Arsenijevic Zdraljevic M, Kacar A, Bozovic I, Peric S. Chronic inflammatory demyelinating polyradiculoneuropathy: Diagnostic problems in clinical practice in Serbia. J Peripher Nerv Syst 2023. [PMID: 36738239 DOI: 10.1111/jns.12537] [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: 07/21/2022] [Revised: 01/18/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023]
Abstract
Making diagnosis of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is challenging since it can mimic a multitude of disorders, and is misdiagnosed in at least 50% of cases. We sought to determine the frequency of CIDP misdiagnosis in clinical practice in Serbia, to uncover CIDP mimics, and to identify factors that may aid in CIDP diagnosis. Our longitudinal retrospective cohort study included 86 eligible adult patients referred to the Neurology Clinic, University Clinical Centre of Serbia, with a diagnosis of CIDP. We also included 15 patients referred to us with different diagnoses that ended up having CIDP as their final diagnosis. Exactly half of patients referred as CIDP failed to meet the established diagnostic criteria (non-CIDP) and were given an alternative diagnosis at the first hospitalization. At the 1-year follow-up, the diagnosis was further revised in four subjects. Confirmed CIDP patients usually had their initial diagnosis based on the nerve conduction studies (NCS), a typical presentation with symmetrical involvement of all four limbs, as well as higher frequencies of elevated protein levels and albuminocytologic dissociation in the cerebrospinal fluid (CSF). CIDP patients also responded better to immune therapy. We found that 52% of the patients initially referred to our Clinic as CIDP were given other diagnoses after a 1-year follow-up. Out of all CIDP cases, 27% had been unrecognized prior to referral to our Center. Utilization of clear and objective indicators - conclusive NCS, improvement on therapy, and elevated CSF proteins may provide greater certainty in diagnosing CIDP.
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Affiliation(s)
- Ivana Basta
- University Clinical Center of Serbia, Neurology Clinic, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Neda Delic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ilija Gunjic
- Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | | | - Aleksandra Kacar
- University Clinical Center of Serbia, Neurology Clinic, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivo Bozovic
- University Clinical Center of Serbia, Neurology Clinic, Belgrade, Serbia
| | - Stojan Peric
- University Clinical Center of Serbia, Neurology Clinic, Belgrade, Serbia
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Younger DS. On the path to evidence-based therapy in neuromuscular disorders. HANDBOOK OF CLINICAL NEUROLOGY 2023; 195:315-358. [PMID: 37562877 DOI: 10.1016/b978-0-323-98818-6.00007-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Neuromuscular disorders encompass a diverse group of acquired and genetic diseases characterized by loss of motor functionality. Although cure is the goal, many therapeutic strategies have been envisioned and are being studied in randomized clinical trials and entered clinical practice. As in all scientific endeavors, the successful clinical translation depends on the quality and translatability of preclinical findings and on the predictive value and feasibility of the clinical models. This chapter focuses on five exemplary diseases: childhood spinal muscular atrophy (SMA), Charcot-Marie-Tooth (CMT) disorders, chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), acquired autoimmune myasthenia gravis (MG), and Duchenne muscular dystrophy (DMD), to illustrate the progress made on the path to evidenced-based therapy.
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Affiliation(s)
- David S Younger
- Department of Clinical Medicine and Neuroscience, CUNY School of Medicine, New York, NY, United States; Department of Medicine, Section of Internal Medicine and Neurology, White Plains Hospital, White Plains, NY, United States.
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Abstract
Autoimmune neuropathy may present acutely or with a more progressive and/or relapsing and remitting course. Acute inflammatory neuropathy or Guillain-Barré syndrome (GBS) has variable presentations but by far the most common is acute inflammatory demyelinating polyradiculoneuropathy which is characterized by rapidly progressive proximal and distal symmetric weakness, sensory loss, and depressed reflexes. The most common chronic autoimmune neuropathy is chronic inflammatory demyelinating polyradiculoneuropathy, which in its most typical form is clinically similar to acute inflammatory demyelinating polyradiculoneuropathy (proximal and distal symmetric weakness, sensory loss, and depressed reflexes) but differs in that onset is much more gradual, i.e., over at least 8 weeks. While the majority of GBS cases result from a postinfectious activation of the immune system, presumably in a genetically susceptible host, less is understood regarding the etiopathogenesis of chronic inflammatory demyelinating polyradiculoneuropathy. Both acute and chronic forms of these inflammatory neuropathies are driven by some combination of innate and adaptive immune pathways, with differing contributions depending on the neuropathy subtype. Both disorders are largely clinical diagnoses, but diagnostic tools are available to confirm the diagnosis, prognosticate, detect variant forms, and rule out mimics. Given the autoimmune underpinnings of both disorders, immunosuppressive and immunomodulating treatments are typically given in both diseases; however, they differ in their response to treatment.
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Affiliation(s)
- Caroline Miranda
- Department of Neurology, Columbia University, Vagelos College of Physicians and Surgeons, New York, NY, United States.
| | - Thomas H Brannagan
- Department of Neurology, Columbia University, Vagelos College of Physicians and Surgeons, New York, NY, United States
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9
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Lewis RA, van Doorn PA, Sommer C. Tips in navigating the diagnostic complexities of chronic inflammatory demyelinating polyradiculoneuropathy. J Neurol Sci 2022; 443:120478. [PMID: 36368137 DOI: 10.1016/j.jns.2022.120478] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 09/29/2022] [Accepted: 10/23/2022] [Indexed: 11/06/2022]
Abstract
The 2021 guideline of the European Academy of Neurology/Peripheral Nerve Society on chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) includes important revisions to the previous 2010 guideline. This article highlights the new criteria and recommendations for the differential diagnosis of CIDP. In the revised guideline, the CIDP spectrum has been modified to include typical CIDP and four well-characterized CIDP variants, namely distal, multifocal/focal, motor and sensory CIDP, replacing the term 'atypical' CIDP. To improve the diagnosis of CIDP, the revised guideline attempts to improve the specificity of the diagnostic criteria for typical CIDP and the four CIDP variants. Specific clinical and electrodiagnostic (including both motor and sensory conduction) criteria are provided for typical CIDP and each of the CIDP variants. The levels of diagnostic certainty have been changed to CIDP and possible CIDP, with the removal of probable CIDP (due to the lack of difference in the accuracy of the electrodiagnostic criteria for probable CIDP) and definite CIDP (due to the lack of a gold standard for diagnosis). If the clinical and electrodiagnostic criteria allow only for a diagnosis of possible CIDP, cerebrospinal fluid analysis, nerve ultrasound, nerve magnetic resonance imaging, objective treatment response, and nerve biopsy can be used as supportive criteria to upgrade the diagnosis to CIDP. Although the revised guideline needs to be validated and its strengths and weaknesses assessed, using the guideline will likely improve the accuracy of diagnosis of CIDP and variants of CIDP, and aid in distinguishing CIDP from conditions with similar features.
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Affiliation(s)
| | - Pieter A van Doorn
- Department of Neurology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
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10
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Doneddu PE, De Lorenzo A, Manganelli F, Cocito D, Fazio R, Briani C, Mazzeo A, Filosto M, Cosentino G, Benedetti L, Schenone A, Marfia GA, Antonini G, Matà S, Luigetti M, Liberatore G, Spina E, Peci E, Strano C, Cacciavillani M, Gentile L, Cotti Piccinelli S, Cortese A, Bianchi E, Nobile-Orazio E. Comparison of the diagnostic accuracy of the 2021 EAN/PNS and 2010 EFNS/PNS diagnostic criteria for chronic inflammatory demyelinating polyradiculoneuropathy. J Neurol Neurosurg Psychiatry 2022; 93:1239-1246. [PMID: 36190959 DOI: 10.1136/jnnp-2022-329357] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 08/13/2022] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To compare the sensitivity and specificity of the 2021 European Academy of Neurology/Peripheral Nerve Society (EAN/PNS) diagnostic criteria for chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) with those of the 2010 European Federation of Neurological Societies/Peripheral Nerve Society (EFNS/PNS). METHODS Sensitivity and specificity of the two sets of criteria were evaluated in 330 patients with CIDP and 166 axonal peripheral neuropathy controls. Comparison of the utility of nerve conduction studies with different number of nerves examined and of the sensitivity and specificity of the two criteria in typical CIDP and its variants were assessed. RESULTS EFNS/PNS criteria had a sensitivity of 92% for possible CIDP and 85% for probable/definite CIDP, while the EAN/PNS criteria had a sensitivity of 83% for possible CIDP and 74% for CIDP. Using supportive criteria, the sensitivity of the EAN/PNS criteria for possible CIDP increased to 85% and that of CIDP to 77%, remaining lower than that of the EFNS/PNS criteria. Specificity of the EFNS/PNS criteria was 68% for possible CIDP and 84% for probable/definite CIDP, while the EAN/PNS criteria had a specificity of 88% for possible CIDP and 98% for CIDP. More extended studies increased the sensitivity of both sets of criteria by 4%-7% but reduced their specificity by 2%-3%. The EFNS/PNS criteria were more sensitive for the diagnosis of typical CIDP while the EAN/PNS criteria were more specific for the diagnosis of distal and sensory CIDP. CONCLUSIONS In our population, the EAN/PNS criteria were more specific but less sensitive than the EFNS/PNS criteria. With the EAN/PNS criteria, more extended nerve conduction studies are recommended to obtain an acceptable sensitivity while maintaining a high specificity.
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Affiliation(s)
- Pietro Emiliano Doneddu
- Neuromuscular and Neuroimmunology Unit, Humanitas Clinical and Research Center-IRCCS, Milano, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Alberto De Lorenzo
- Neuromuscular and Neuroimmunology Unit, Humanitas Clinical and Research Center-IRCCS, Milano, Italy
| | - Fiore Manganelli
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples Federico II, Napoli, Campania, Italy
| | - Dario Cocito
- Divisione di Riabilitazione Neuromotoria, Istituti Clinici Scientifici Maugeri-Presidio Sanitario Major, Torino, Italy, Torino, Italy
| | - Raffaella Fazio
- Division of Neuroscience, Department of Neurology, Institute of Experimental Neurology (INSPE), Istituto di Ricovero e Cura a Carattere Scientifico Ospedale San Raffaele, Milano, Lombardia, Italy
| | - Chiara Briani
- Neurology Unit, Department of Neuroscience, University of Padova, Padova, Italy
| | - Anna Mazzeo
- Department of Clinical and Experimental Medicine, Unit of Neurology, University of Messina, Messina, Sicilia, Italy
| | - Massimiliano Filosto
- Department of Clinical and Experimental Sciences, NeMO-Brescia Clinical Center for Neuromuscular Diseases, University of Brescia, Brescia, Italy
| | - Giuseppe Cosentino
- IRCCS Mondino Foundation, Pavia, Italy.,Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | | | - Angelo Schenone
- IRCCS Ospedale Policlinico San Martino, Genova, Italy.,Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genova, Italy
| | - Girolama Alessandra Marfia
- Dysimmune Neuropathies Unit, Department of Systems Medicine, University of Rome Tor Vergata, Roma, Italy
| | - Giovanni Antonini
- Department of Neurology Mental Health and Sensory Organs (NESMOS), Faculty of Medicine and Psychology, University of Rome La Sapienza, Rome, Italy
| | - Sabrina Matà
- Dipartimento Neuromuscoloscheletrico e degli organi di Senso, Neurology Unit, Careggi University Hospital, Firenze, Italy
| | - Marco Luigetti
- UOC Neurologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy.,Università Cattolica del Sacro Cuore, Roma, Italy
| | - Giuseppe Liberatore
- Neuromuscular and Neuroimmunology Unit, Humanitas Clinical and Research Center-IRCCS, Milano, Italy
| | - Emanuele Spina
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples Federico II, Napoli, Campania, Italy
| | - Erdita Peci
- Department of Neuroscience, University of Turin, Torino, Italy
| | - Camilla Strano
- Division of Neuroscience, Department of Neurology, Institute of Experimental Neurology (INSPE), Istituto di Ricovero e Cura a Carattere Scientifico Ospedale San Raffaele, Milano, Lombardia, Italy
| | | | - Luca Gentile
- Department of Clinical and Experimental Medicine, Unit of Neurology, University of Messina, Messina, Sicilia, Italy
| | - Stefano Cotti Piccinelli
- Department of Clinical and Experimental Sciences, NeMO-Brescia Clinical Center for Neuromuscular Diseases, University of Brescia, Brescia, Italy
| | - Andrea Cortese
- IRCCS Mondino Foundation, Pavia, Italy.,Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Elisa Bianchi
- Laboratorio di Malattie Neurologiche, Istituto di ricerche farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Eduardo Nobile-Orazio
- Neuromuscular and Neuroimmunology Unit, Humanitas Clinical and Research Center-IRCCS, Milano, Italy .,Department of Medical Biotechnology, Translational Medicine Milan University, Italy
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11
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Rajabally YA, Afzal S, Loo LK, Goedee HS. Application of the 2021 EAN/PNS criteria for chronic inflammatory demyelinating polyneuropathy. J Neurol Neurosurg Psychiatry 2022; 93:1247-1252. [PMID: 36190956 DOI: 10.1136/jnnp-2022-329633] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 08/13/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND The diagnostic value of new criteria of the European Academy of Neurology/Peripheral Nerve Society (EAN/PNS) for chronic inflammatory demyelinating polyneuropathy (CIDP) is unknown. METHODS We performed a retrospective study of fulfilment of EAN/PNS 2021 criteria on 120 consecutive patients with a clinical diagnosis of 'suspected CIDP' and objective treatment response, attending University Hospitals Birmingham, UK. Specificity was evaluated versus 100 consecutive controls. RESULTS The sensitivity of EAN/PNS criteria for 'CIDP' was 83.3%. The sensitivity for 'CIDP' or 'possible CIDP' was 93.3%. Specificity was of 94% for 'CIDP' and 79% for 'CIDP' or 'possible CIDP'. No sensitivity/specificity differences were ascertained with previous versions ('CIDP': sensitivity: 83.3% vs 81.3%, p=0.74, specificity: 94% vs 96.1%, p=0.38, respectively; 'CIDP' or 'possible CIDP': sensitivity: 93.3% vs 96.7%, p=0.25 and specificity: 79% vs 69.2 %, p=0.09, respectively). F-wave prolongation, proximal and distal temporal dispersion were the most likely parameters to contribute to false positives, whereas distal motor latency was the least likely. No impact of sensory electrophysiology could be ascertained. 'Typical CIDP' represented 79% of the CIDP cohort. The largest component of the 'variant CIDP' group was represented by focal/multifocal forms (14%). With new criteria, 6.7% of the cohort did not meet requirements, among whom the majority (75%) had paranodopathy or chronic immune sensory polyradiculopathy (CISP). DISCUSSION The sensitivity and specificity of new EAN/PNS criteria for CIDP is equivalent to that of previous versions. The exclusion of paranodopathies and CISP from the CIDP spectrum impacts on management of a non-negligible proportion of treatment-responsive patients.
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Affiliation(s)
- Yusuf A Rajabally
- Inflammatory Neuropathy Clinic, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK .,Aston Medical School, Aston University, Birmingham, UK
| | - Saadia Afzal
- Inflammatory Neuropathy Clinic, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Lay Khoon Loo
- Inflammatory Neuropathy Clinic, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - H S Goedee
- Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, The Netherlands
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12
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Allen JA, Lewis RA. Diagnosis of Chronic Inflammatory Demyelinating Polyneuropathy. Muscle Nerve 2022; 66:545-551. [DOI: 10.1002/mus.27708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 11/07/2022]
Affiliation(s)
| | - Richard A. Lewis
- Department of Neurology, Cedars‐Sinai Medical Center California Los Angeles USA
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13
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van Renen J, Fischer A, Kolb N, Wielaender F, Zablotski Y, Nessler J, Tipold A, Cappello R, Flegel T, Loderstedt S, Gnirs K, Rentmeister K, Rupp S, von Klopmann T, Steffen F, Jurina K, Del Vecchio OV, Deutschland M, König F, Gandini G, Harcourt-Brown T, Kornberg M, Bianchi E, Gagliardo T, Menchetti M, Schenk H, Tabanez J, Matiasek K, Rosati M. Clinical Course and Diagnostic Findings of Biopsy Controlled Presumed Immune-Mediated Polyneuropathy in 70 European Cats. Front Vet Sci 2022; 9:875657. [PMID: 35664840 PMCID: PMC9156799 DOI: 10.3389/fvets.2022.875657] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 04/20/2022] [Indexed: 11/13/2022] Open
Abstract
There is a paucity of information on the clinical course and outcome of young cats with polyneuropathy. The aim of the study was to describe the clinical features, diagnostic investigations, and outcome of a large cohort of cats with inflammatory polyneuropathy from several European countries. Seventy cats with inflammatory infiltrates in intramuscular nerves and/or peripheral nerve biopsies were retrospectively included. Information from medical records and follow up were acquired via questionnaires filled by veterinary neurologists who had submitted muscle and nerve biopsies (2011-2019). Median age at onset was 10 months (range: 4-120 months). The most common breed was British short hair (25.7%), followed by Domestic short hair (24.3%), Bengal cat (11.4%), Maine Coon (8.6%) and Persian cat (5.7%), and 14 other breeds. Male cats were predominantly affected (64.3%). Clinical signs were weakness (98.6%) and tetraparesis (75.7%) in association with decreased withdrawal reflexes (83.6%) and, less commonly, cranial nerve signs (17.1%), spinal pain/hyperesthesia (12.9%), and micturition/defecation problems (14.3%). Onset was sudden (30.1%) or insidious (69.1%), and an initial progressive phase was reported in 74.3%. Characteristic findings on electrodiagnostic examination were presence of generalized spontaneous electric muscle activity (89.6%), decreased motor nerve conduction velocity (52.3%), abnormal F-wave studies (72.4%), pattern of temporal dispersion (26.1%) and unremarkable sensory tests. The clinical course was mainly described as remittent (49.2%) or remittent-relapsing (34.9%), while stagnation, progressive course or waxing and waning were less frequently reported. Relapses were common and occurred in 35.7% of the cats' population. An overall favorable outcome was reported in 79.4% of patients. In conclusion, young age at the time of diagnosis and sudden onset of clinical signs were significantly associated with recovery (p < 0.05). Clinical and electrodiagnostic features and the remittent-relapsing clinical course resembles juvenile chronic inflammatory demyelinating polyneuropathy (CIDP), as seen in human (children/adolescents), in many aspects.
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Affiliation(s)
- Jana van Renen
- Neurology Service, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians Universität München, Munich, Germany
| | - Andrea Fischer
- Neurology Service, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians Universität München, Munich, Germany
| | - Ninja Kolb
- Section of Clinical and Comparative Neuropathology, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians Universität München, Munich, Germany
| | - Franziska Wielaender
- Neurology Service, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians Universität München, Munich, Germany
| | - Yury Zablotski
- Clinic for Ruminants With Ambulatory and Herd Health Services, Ludwig-Maximilians Universität München, Munich, Germany
| | - Jasmin Nessler
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Andrea Tipold
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Rodolfo Cappello
- North Downs Specialist Referrals, The Brewerstreet Dairy Business Park, Bletchingley, United Kingdom
| | - Thomas Flegel
- Small Animal Department, University of Leipzig, Leipzig, Germany
| | | | - Kirsten Gnirs
- Section of Neurology and Neurosurgery, Advetia Clinic for Small Animal Medicine, Paris, France
| | - Kai Rentmeister
- Specialty Practice for Veterinary Neurology and Neurosurgery, Dettelbach, Germany
| | | | | | - Frank Steffen
- Neurology Service, Department of Small Animals, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | | | | | | | | | - Gualtiero Gandini
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, Italy
| | - Tom Harcourt-Brown
- Langford Veterinary Services, School of Veterinary Sciences, University of Bristol, Lower Langford, United Kingdom
| | | | - Ezio Bianchi
- Department of Veterinary Science, University of Parma, Parma, Italy
| | | | - Marika Menchetti
- Neurology and Neurosurgery Division, San Marco Veterinary Clinic, Veggiano, Italy
| | | | - Joana Tabanez
- Neurology Section, Fitzpatrick Referrals, Godalming, United Kingdom
| | - Kaspar Matiasek
- Section of Clinical and Comparative Neuropathology, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians Universität München, Munich, Germany
| | - Marco Rosati
- Section of Clinical and Comparative Neuropathology, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians Universität München, Munich, Germany
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14
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Rigal J, Quarto E, Boue L, Balabaud L, Thompson W, Cloché T, Bourret S, Le Huec JC. Original Surgical Treatment and Long-term Follow-up for Chronic Inflammatory Demyelinating Polyradiculoneuropathy Causing A Compressive Cervical Myelopathy. Neurospine 2022; 19:472-477. [PMID: 35588760 PMCID: PMC9260558 DOI: 10.14245/ns.2143232.616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 03/21/2022] [Indexed: 11/19/2022] Open
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a chronic relapsing disease of unknown aetiology. The diagnosis of this disease is still very complicated. The treatment is medical but, in some cases, a surgical decompression might be required. In rare cases it develops a radicular hypertrophy that can cause a cervical myelopathy; this pathology should be put in differential diagnosis with neurofibromatosis 1 (NF-1) and Charcot Marie Tooth (CMT) syndromes. The cases of CIDP cervical myelopathy reported in the literature are rare and even more rarely a surgical decompression was described. Here we report a first and unique case of CIDP cervical myelopathy treated with an open-door laminoplasty technique with 10-years post-operative follow-up (FU). The surgical decompression revealed to be effective in stopping the progression of myelopathy without destabilizing the spine. The patient that before surgery presented a severe tetra-paresis could return to walk and gained back his self-care autonomy. At 10-years FU he didn't complain of neck pain and didn't develop a cervical kyphosis. In case of cervical myelopathy caused by radicular hypertrophy CIDP should be kept in mind in the differential diagnosis and an open-door laminoplasty is indicated to stop myelopathy progression.
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Affiliation(s)
- Julien Rigal
- Vertebra, Polyclinique Bordeaux Nord Aquitaine, Bordeaux, France
| | - Emanuele Quarto
- Vertebra, Polyclinique Bordeaux Nord Aquitaine, Bordeaux, France
| | - Lisa Boue
- Vertebra, Polyclinique Bordeaux Nord Aquitaine, Bordeaux, France
| | - Laurent Balabaud
- Vertebra, Polyclinique Bordeaux Nord Aquitaine, Bordeaux, France
| | - Wendy Thompson
- Vertebra, Polyclinique Bordeaux Nord Aquitaine, Bordeaux, France
| | - Thibault Cloché
- Vertebra, Polyclinique Bordeaux Nord Aquitaine, Bordeaux, France
| | - Stephane Bourret
- Vertebra, Polyclinique Bordeaux Nord Aquitaine, Bordeaux, France
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15
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Sacks HS, Smirnoff M, Carson D, Cooney ML, Shapiro MZ, Hahn CJ, Dasaro CR, Crowson C, Tassiulas I, Hirten RP, Cohen BL, Haber RS, Davies TF, Simpson DM, Crane MA, Harrison DJ, Luft BJ, Moline JM, Udasin IG, Todd AC, Sloan NL, Teitelbaum SL. Autoimmune conditions in the World Trade Center general responder cohort: A nested case-control and standardized incidence ratio analysis. Am J Ind Med 2022; 65:117-131. [PMID: 34825393 DOI: 10.1002/ajim.23313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/26/2021] [Accepted: 11/02/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND The World Trade Center (WTC) general responder cohort (GRC) was exposed to environmental toxins possibly associated with increased risk of developing autoimmune conditions. OBJECTIVES Two study designs were used to assess incidence and risks of autoimmune conditions in the GRC. METHODS Three clinically trained professionals established the status of possible GRC cases of autoimmune disorders adhering to diagnostic criteria, supplemented, as needed, by specialists' review of consenting responders' medical records. Nested case-control analyses using conditional logistic regression estimated the risk associated with high WTC exposure (being in the 9/11/2001 dust cloud or ≥median days' response worked) compared with low WTC exposure (all other GRC members'). Four controls were matched to each case on age at case diagnosis (±2 years), sex, race/ethnicity, and year of program enrollment. Sex-specific and sensitivity analyses were performed. GRC age- and sex-adjusted standardized incidence ratios (SIRs) were compared with the Rochester Epidemiology Project (REP). Complete REP inpatient and outpatient medical records were reviewed by specialists. Conditions meeting standardized criteria on ≥2 visits were classified as REP confirmed cases. RESULTS Six hundred and twenty-eight responders were diagnosed with autoimmune conditions between 2002 and 2017. In the nested case-control analyses, high WTC exposure was not associated with autoimmune domains and conditions (rheumatologic domain odds ratio [OR] = 1.03, 95% confidence interval [CI] = 0.77, 1.37; rheumatoid arthritis OR = 1.12, 95% CI = 0.70, 1.77). GRC members had lower SIR than REP. Women's risks were generally greater than men's. CONCLUSIONS The study found no statistically significant increased risk of autoimmune conditions with WTC exposures.
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Affiliation(s)
- Henry S. Sacks
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Margaret Smirnoff
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Deborah Carson
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Michael L. Cooney
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Moshe Z. Shapiro
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Christopher J. Hahn
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Christopher R. Dasaro
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Cynthia Crowson
- Division of Biomedical Statistics and Informatics Mayo Clinic College of Medicine Rochester Minnesota USA
| | - Ioannis Tassiulas
- Rheumatology Department Icahn School of Medicine at Mount Sinai New York New York USA
| | - Robert P. Hirten
- Rheumatology Department Icahn School of Medicine at Mount Sinai New York New York USA
| | - Benjamin L. Cohen
- Rheumatology Department Icahn School of Medicine at Mount Sinai New York New York USA
- Department of Gastroenterology, Hepatology, and Nutrition Cleveland Clinic Foundation Cleveland Ohio USA
| | - Richard S. Haber
- Rheumatology Department Icahn School of Medicine at Mount Sinai New York New York USA
| | - Terry F. Davies
- Rheumatology Department Icahn School of Medicine at Mount Sinai New York New York USA
| | - David M. Simpson
- Rheumatology Department Icahn School of Medicine at Mount Sinai New York New York USA
| | - Michael A. Crane
- Department of Environmental Medicine and Public Health, World Trade Center Health Program Clinical Center of Excellence Icahn School of Medicine at Mount Sinai New York New York USA
| | - Denise J. Harrison
- Department of Medicine, Department of Environmental Medicine, World Trade Center Health Program Clinical Center of Excellence, NYU Langone Medical Center New York University School of Medicine New York New York USA
| | - Benjamin J. Luft
- Department of Medicine, World Trade Center Health Program Clinical Center of Excellence Stony Brook University Medical Center Stony Brook New York USA
| | - Jacqueline M. Moline
- Department of Occupational Medicine, Epidemiology and Prevention, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell World Trade Center Health Program Clinical Center of Excellence Hempstead New York USA
| | - Iris G. Udasin
- Department of Environmental and Occupational Medicine, World Trade Center Health Program Clinical Center of Excellence, Environmental and Occupational Health Sciences Institute Rutgers University Biomedical Sciences Piscataway New Jersey USA
| | - Andrew C. Todd
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Nancy L. Sloan
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
| | - Susan L. Teitelbaum
- Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York New York USA
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16
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Van den Bergh PYK, van Doorn PA, Hadden RDM, Avau B, Vankrunkelsven P, Allen JA, Attarian S, Blomkwist-Markens PH, Cornblath DR, Eftimov F, Goedee HS, Harbo T, Kuwabara S, Lewis RA, Lunn MP, Nobile-Orazio E, Querol L, Rajabally YA, Sommer C, Topaloglu HA. European Academy of Neurology/Peripheral Nerve Society guideline on diagnosis and treatment of chronic inflammatory demyelinating polyradiculoneuropathy: Report of a joint Task Force-Second revision. Eur J Neurol 2021; 28:3556-3583. [PMID: 34327760 DOI: 10.1111/ene.14959] [Citation(s) in RCA: 169] [Impact Index Per Article: 56.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To revise the 2010 consensus guideline on chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). METHODS Seventeen disease experts, a patient representative, and two Cochrane methodologists constructed 12 Population/Intervention/Comparison/Outcome (PICO) questions regarding diagnosis and treatment to guide the literature search. Data were extracted and summarized in GRADE summary of findings (for treatment PICOs) or evidence tables (for diagnostic PICOs). RESULTS Statements were prepared according to the GRADE Evidence-to-Decision frameworks. Typical CIDP and CIDP variants were distinguished. The previous term "atypical CIDP" was replaced by "CIDP variants" because these are well characterized entities (multifocal, focal, distal, motor, or sensory CIDP). The levels of diagnostic certainty were reduced from three (definite, probable, possible CIDP) to only two (CIDP and possible CIDP), because the diagnostic accuracy of criteria for probable and definite CIDP did not significantly differ. Good Practice Points were formulated for supportive criteria and investigations to be considered to diagnose CIDP. The principal treatment recommendations were: (a) intravenous immunoglobulin (IVIg) or corticosteroids are strongly recommended as initial treatment in typical CIDP and CIDP variants; (b) plasma exchange is strongly recommended if IVIg and corticosteroids are ineffective; (c) IVIg should be considered as first-line treatment in motor CIDP (Good Practice Point); (d) for maintenance treatment, IVIg, subcutaneous immunoglobulin or corticosteroids are recommended; (e) if the maintenance dose of any of these is high, consider either combination treatments or adding an immunosuppressant or immunomodulatory drug (Good Practice Point); and (f) if pain is present, consider drugs against neuropathic pain and multidisciplinary management (Good Practice Point).
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Affiliation(s)
- Peter Y K Van den Bergh
- Neuromuscular Reference Centre, Department of Neurology, University Hospital Saint-Luc, Brussels, Belgium
| | - Pieter A van Doorn
- Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | | | - Bert Avau
- Cochrane Belgium, CEBAM, Leuven, Belgium and CEBaP, Belgian Red Cross, Mechelen, Belgium
| | | | - Jeffrey A Allen
- Department of Neurology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Shahram Attarian
- Centre de Référence des Maladies Neuromusculaires et de la SLA, APHM, CHU Timone, Marseille, France
| | | | - David R Cornblath
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Filip Eftimov
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - H Stephan Goedee
- Department of Neuromuscular Disorders, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Thomas Harbo
- Department of Neurology, Århus University Hospital, Århus, Denmark
| | - Satoshi Kuwabara
- Department of Neurology, Chiba University Hospital, Chiba, Japan
| | - Richard A Lewis
- Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Michael P Lunn
- Department of Neurology and MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, London, UK
| | - Eduardo Nobile-Orazio
- Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Center, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Luis Querol
- Neuromuscular Diseases Unit-Neurology Department, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - Yusuf A Rajabally
- Regional Neuromuscular Service, Neurology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Claudia Sommer
- Neurology Clinic, University Hospital Würzburg, Würzburg, Germany
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17
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Van den Bergh PYK, van Doorn PA, Hadden RDM, Avau B, Vankrunkelsven P, Allen JA, Attarian S, Blomkwist-Markens PH, Cornblath DR, Eftimov F, Goedee HS, Harbo T, Kuwabara S, Lewis RA, Lunn MP, Nobile-Orazio E, Querol L, Rajabally YA, Sommer C, Topaloglu HA. European Academy of Neurology/Peripheral Nerve Society guideline on diagnosis and treatment of chronic inflammatory demyelinating polyradiculoneuropathy: Report of a joint Task Force-Second revision. J Peripher Nerv Syst 2021; 26:242-268. [PMID: 34085743 DOI: 10.1111/jns.12455] [Citation(s) in RCA: 166] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/14/2022]
Abstract
To revise the 2010 consensus guideline on chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Seventeen disease experts, a patient representative, and two Cochrane methodologists constructed 12 Population/Intervention/Comparison/Outcome (PICO) questions regarding diagnosis and treatment to guide the literature search. Data were extracted and summarized in GRADE summary of findings (for treatment PICOs) or evidence tables (for diagnostic PICOs). Statements were prepared according to the GRADE Evidence-to-Decision frameworks. Typical CIDP and CIDP variants were distinguished. The previous term "atypical CIDP" was replaced by "CIDP variants" because these are well characterized entities (multifocal, focal, distal, motor, or sensory CIDP). The levels of diagnostic certainty were reduced from three (definite, probable, possible CIDP) to only two (CIDP and possible CIDP), because the diagnostic accuracy of criteria for probable and definite CIDP did not significantly differ. Good Practice Points were formulated for supportive criteria and investigations to be considered to diagnose CIDP. The principal treatment recommendations were: (a) intravenous immunoglobulin (IVIg) or corticosteroids are strongly recommended as initial treatment in typical CIDP and CIDP variants; (b) plasma exchange is strongly recommended if IVIg and corticosteroids are ineffective; (c) IVIg should be considered as first-line treatment in motor CIDP (Good Practice Point); (d) for maintenance treatment, IVIg, subcutaneous immunoglobulin or corticosteroids are recommended; (e) if the maintenance dose of any of these is high, consider either combination treatments or adding an immunosuppressant or immunomodulatory drug (Good Practice Point); and (f) if pain is present, consider drugs against neuropathic pain and multidisciplinary management (Good Practice Point).
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Affiliation(s)
- Peter Y K Van den Bergh
- Neuromuscular Reference Centre, Department of Neurology, University Hospital Saint-Luc, Brussels, Belgium
| | - Pieter A van Doorn
- Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | | | - Bert Avau
- Cochrane Belgium, CEBAM, Leuven, Belgium and CEBaP, Belgian Red Cross, Mechelen, Belgium
| | | | - Jeffrey A Allen
- Department of Neurology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Shahram Attarian
- Centre de Référence des Maladies Neuromusculaires et de la SLA, APHM, CHU Timone, Marseille, France
| | | | - David R Cornblath
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Filip Eftimov
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - H Stephan Goedee
- Department of Neuromuscular Disorders, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Thomas Harbo
- Department of Neurology, Århus University Hospital, Århus, Denmark
| | - Satoshi Kuwabara
- Department of Neurology, Chiba University Hospital, Chiba, Japan
| | - Richard A Lewis
- Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Michael P Lunn
- Department of Neurology and MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, London, UK
| | - Eduardo Nobile-Orazio
- Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Center, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Luis Querol
- Neuromuscular Diseases Unit-Neurology Department, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - Yusuf A Rajabally
- Regional Neuromuscular Service, Neurology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Claudia Sommer
- Neurology Clinic, University Hospital Würzburg, Würzburg, Germany
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18
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Eftimov F, Lucke IM, Querol LA, Rajabally YA, Verhamme C. Diagnostic challenges in chronic inflammatory demyelinating polyradiculoneuropathy. Brain 2020; 143:3214-3224. [PMID: 33155018 PMCID: PMC7719025 DOI: 10.1093/brain/awaa265] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/07/2020] [Accepted: 06/17/2020] [Indexed: 12/11/2022] Open
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) consists of a spectrum of autoimmune diseases of the peripheral nerves, causing weakness and sensory symptoms. Diagnosis often is challenging, because of the heterogeneous presentation and both mis- and underdiagnosis are common. Nerve conduction study (NCS) abnormalities suggestive of demyelination are mandatory to fulfil the diagnostic criteria. On the one hand, performance and interpretation of NCS can be difficult and none of these demyelinating findings are specific for CIDP. On the other hand, not all patients will be detected despite the relatively high sensitivity of NCS abnormalities. The electrodiagnostic criteria can be supplemented with additional diagnostic tests such as CSF examination, MRI, nerve biopsy, and somatosensory evoked potentials. However, the evidence for each of these additional diagnostic tests is limited. Studies are often small without the use of a clinically relevant control group. None of the findings are specific for CIDP, meaning that the results of the diagnostic tests should be carefully interpreted. In this update we will discuss the pitfalls in diagnosing CIDP and the value of newly introduced diagnostic tests such as nerve ultrasound and testing for autoantibodies, which are not yet part of the guidelines.
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Affiliation(s)
- Filip Eftimov
- Department of Neurology and Clinical Neurophysiology, Amsterdam Neuroscience, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Ilse M Lucke
- Department of Neurology and Clinical Neurophysiology, Amsterdam Neuroscience, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Luis A Querol
- Department of Neurology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- Centro para la Investigación en Red en Enfermedades Raras (CIBERER), Madrid, Spain
| | | | - Camiel Verhamme
- Department of Neurology and Clinical Neurophysiology, Amsterdam Neuroscience, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
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19
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Malik A, Berry R, Fung BM, Tabibian JH. Association between chronic inflammatory demyelinating polyneuropathy and gastrointestinal malignancies. Clin J Gastroenterol 2020; 14:1-13. [PMID: 33146871 DOI: 10.1007/s12328-020-01281-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/20/2020] [Indexed: 11/29/2022]
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is an uncommon and under-recognized immune-mediated disorder of the peripheral nervous system. It is associated with both infectious and non-infectious etiologies and presents in several variant forms. In rare instances, CIDP has been reported in association with gastrointestinal (esophageal, hepatic, colorectal, and pancreatic) malignancies. The diagnosis of malignancy is typically preceded by weeks to months by that of CIDP, though the inverse may also be seen. As with other etiologies of CIDP, cases associated with gastrointestinal malignancies are often treated with corticosteroids, intravenous immunoglobulins, and/or plasma exchange, with improvement or resolution of neurological symptoms in the majority of cases. In this review, we provide a practical overview of CIDP, with an emphasis on recognizing the clinical association between CIDP and gastrointestinal malignancies.
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Affiliation(s)
- Adnan Malik
- Division of Hepatology, Loyola University Medical Center, Maywood, IL, USA
| | - Rani Berry
- Department of Internal Medicine, UCLA Ronald Reagan Medical Center, Los Angeles, CA, USA
| | - Brian M Fung
- Department of Medicine, Olive View-UCLA Medical Center, Sylmar, CA, USA
| | - James H Tabibian
- Division of Gastroenterology, Olive View-UCLA Medical Center, 14445 Olive View Dr, Sylmar, CA, 2B-182, USA. .,David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
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20
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Liberatore G, Manganelli F, Doneddu PE, Cocito D, Fazio R, Briani C, Filosto M, Benedetti L, Mazzeo A, Antonini G, Cosentino G, Jann S, Cortese A, Marfia GA, Clerici AM, Siciliano G, Carpo M, Luigetti M, Lauria G, Rosso T, Cavaletti G, Santoro L, Peci E, Tronci S, Ruiz M, Cotti Piccinelli S, Schenone A, Leonardi L, Toscano A, Mataluni G, Spina E, Gentile L, Nobile-Orazio E. Chronic inflammatory demyelinating polyradiculoneuropathy: can a diagnosis be made in patients not fulfilling electrodiagnostic criteria? Eur J Neurol 2020; 28:620-629. [PMID: 32959475 DOI: 10.1111/ene.14545] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND PURPOSE The aim was to identify the clinical and diagnostic investigations that may help to support a diagnosis of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) in patients not fulfilling the European Federation of Neurological Societies and Peripheral Nerve Society (EFNS/PNS) electrodiagnostic criteria. METHODS The data from patients with a clinical diagnosis of CIDP included in a national database were retrospectively reviewed. RESULTS In all, 535 patients with a diagnosis of CIDP were included. This diagnosis fulfilled the EFNS/PNS criteria in 468 patients (87.2%) (definite in 430, probable in 33, possible in three, while two had chronic immune sensory polyradiculopathy). Sixty-seven patients had a medical history and clinical signs compatible with CIDP but electrodiagnostic studies did not fulfill the EFNS/PNS criteria for CIDP. These patients had similar clinical features and frequency of abnormal supportive criteria for the diagnosis of CIDP compared to patients fulfilling EFNS/PNS criteria. Two or more abnormal supportive criteria were present in 40 (61.2%) patients rising to 54 (80.6%) if a history of a relapsing course as a possible supportive criterion was also included. Increased cerebrospinal fluid proteins and response to immune therapy most frequently helped in supporting the diagnosis of CIDP. Response to therapy was similarly frequent in patients fulfilling or not EFNS/PNS criteria (87.3% vs. 85.9%). CONCLUSIONS Patients with a clinical diagnosis of CIDP had similar clinical findings, frequency of abnormal supportive criteria and response to therapy compared to patients fulfilling EFNS/PNS criteria. The presence of abnormal supportive criteria may help in supporting the diagnosis of CIDP in patients with a medical history and clinical signs compatible with this diagnosis but non-diagnostic nerve conduction studies.
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Affiliation(s)
- G Liberatore
- Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Institute, Milan, Italy
| | - F Manganelli
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples 'Federico II', Naples, Italy
| | - P E Doneddu
- Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Institute, Milan, Italy
| | - D Cocito
- Presidio Sanitario Major, Istituti Clinici Scientifici Maugeri, Turin, Italy
| | - R Fazio
- Department of Neurology, Division of Neuroscience, Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, Milan, Italy
| | - C Briani
- Neurology Unit, Department of Neuroscience, University of Padova, Padova, Italy
| | - M Filosto
- Center for Neuromuscular Diseases and Neuropathies, Unit of Neurology, ASST 'Spedali Civili', University of Brescia, Brescia, Italy
| | - L Benedetti
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa and IRCCS AOU San Martino-IST, Genoa, Italy.,Neurology Unit, Sant'Andrea Hospital, La Spezia, Italy
| | - A Mazzeo
- Department of Clinical and Experimental Medicine, Unit of Neurology, University of Messina, Messina, Italy
| | - G Antonini
- Unit of Neuromuscular Diseases, Department of Neurology Mental Health and Sensory Organs (NESMOS), Faculty of Medicine and Psychology, Sant'Andrea Hospital, 'Sapienza' University of Rome, Rome, Italy
| | - G Cosentino
- Department of Experimental BioMedicine and Clinical Neurosciences (BioNeC), University of Palermo, Palermo, Italy.,IRCCS Foundation C. Mondino National Neurological Institute, Pavia, Italy.,Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - S Jann
- Department of Neuroscience, Niguarda Ca' Granda Hospital, Milan, Italy
| | - A Cortese
- IRCCS Foundation C. Mondino National Neurological Institute, Pavia, Italy.,Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.,Molecular Neurosciences, University College London, London, UK
| | - G A Marfia
- Dysimmune Neuropathies Unit, Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - A M Clerici
- Neurology Unit, Circolo and Macchi Foundation Hospital, Insubria University, DBSV, Varese, Italy
| | - G Siciliano
- Neurology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - M Carpo
- Neurology Unit, ASST Bergamo Ovest-Ospedale Treviglio, Treviglio, Italy
| | - M Luigetti
- Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Neurologia, Università Cattolica del Sacro Cuore, Rome, Italy
| | - G 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
| | - T Rosso
- ULSS2 Marca Trevigiana, UOC Neurologia-Castelfranco Veneto, Treviso, Italy
| | - G Cavaletti
- School of Medicine and Surgery and Experimental Neurology Unit, University of Milano-Bicocca, Monza, Italy
| | - L Santoro
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples 'Federico II', Naples, Italy
| | - E Peci
- Presidio Sanitario Major, Istituti Clinici Scientifici Maugeri, Turin, Italy
| | - S Tronci
- Department of Neurology, Division of Neuroscience, Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, Milan, Italy
| | - M Ruiz
- Neurology Unit, Department of Neuroscience, University of Padova, Padova, Italy
| | - S Cotti Piccinelli
- Center for Neuromuscular Diseases and Neuropathies, Unit of Neurology, ASST 'Spedali Civili', University of Brescia, Brescia, Italy
| | - A Schenone
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa and IRCCS AOU San Martino-IST, Genoa, Italy
| | - L Leonardi
- Unit of Neuromuscular Diseases, Department of Neurology Mental Health and Sensory Organs (NESMOS), Faculty of Medicine and Psychology, Sant'Andrea Hospital, 'Sapienza' University of Rome, Rome, Italy
| | - A Toscano
- Department of Clinical and Experimental Medicine, Unit of Neurology, University of Messina, Messina, Italy
| | - G Mataluni
- Dysimmune Neuropathies Unit, Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - E Spina
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples 'Federico II', Naples, Italy
| | - L Gentile
- Department of Clinical and Experimental Medicine, Unit of Neurology, University of Messina, Messina, Italy
| | - E Nobile-Orazio
- Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Institute, Milan, Italy.,Department of Medical Biotechnology and Translational Medicine, Milan University, Milan, Italy
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21
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Shah S, Morrow JM, Sinclair CDJ, Reilly MM, Thornton JS, Lunn MP, Yousry TA. MRI quantifies lumbosacral nerve root and sciatic nerve hypertrophy in chronic inflammatory demyelinating polyradiculoneuropathy. Eur J Radiol 2020; 130:109164. [PMID: 32688240 DOI: 10.1016/j.ejrad.2020.109164] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/06/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a treatable, immune-mediated condition characterised by progressive or relapsing motor and sensory neurological deficits. The diagnosis is based on a combination of clinical, neurophysiological and supportive criteria, but can be challenging. In this study, we quantified the diameter and cross-sectional area of the lumbosacral nerve roots, and explored the imaging characteristics of the sciatic nerves, in patients with CIDP versus healthy controls using MRI. METHODS MRI of the lumbosacral plexus and both thighs was performed at 3 T. Orthogonal diameter and cross-sectional area of the lumbosacral nerve roots were measured, along with sciatic nerve cross-sectional area at the mid-thigh level. The MRI appearance of the sciatic nerves was also evaluated qualitatively. All measurements were performed by an observer blinded to the diagnosis. RESULTS 10 patients with CIDP and 10 healthy controls (age and sex-matched) were studied. Lumbosacral nerve root diameter and cross-sectional area were significantly increased in patients with CIDP compared to controls (mean diameter 6.0 ± 1.1 mm vs 4.8 ± 0.3 mm; p = 0.006), with a high sensitivity (89 %) and specificity (90 %) on ROC analysis. Sciatic nerve cross sectional area was also significantly increased in the CIDP group, and was accompanied by qualitative MRI changes. CONCLUSIONS Quantitative MRI reveals significant hypertrophy of the lumbosacral nerve roots and sciatic nerves in patients with CIDP compared to controls. This study provides further evidence for the inclusion of lumbosacral nerve root and sciatic nerve hypertrophy on MRI as a supportive feature in the diagnostic criteria for CIDP.
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Affiliation(s)
- Sachit Shah
- Neuroradiological Academic Unit, UCL Queen Square Institute of Neurology, London, UK.
| | - Jasper M Morrow
- Queen Square Centre for Neuromuscular Diseases, Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Christopher D J Sinclair
- Neuroradiological Academic Unit, UCL Queen Square Institute of Neurology, London, UK; Queen Square Centre for Neuromuscular Diseases, Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Mary M Reilly
- Queen Square Centre for Neuromuscular Diseases, Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - John S Thornton
- Neuroradiological Academic Unit, UCL Queen Square Institute of Neurology, London, UK; Queen Square Centre for Neuromuscular Diseases, Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Michael P Lunn
- Queen Square Centre for Neuromuscular Diseases, Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Tarek A Yousry
- Neuroradiological Academic Unit, UCL Queen Square Institute of Neurology, London, UK; Queen Square Centre for Neuromuscular Diseases, Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
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22
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Electrodiagnostic Testing of Large Fiber Polyneuropathies: A Review of Existing Guidelines. J Clin Neurophysiol 2020; 37:277-287. [DOI: 10.1097/wnp.0000000000000674] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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23
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Abstract
There is a growing realization that many patients are incorrectly diagnosed with chronic inflammatory demyelinating polyneuropathy (CIDP), with at least half of patients that carry a diagnosis of CIDP in the USA possibly having a different explanation for their neuropathy or having no neuropathy at all. Many misdiagnosed patients go on to receive costly and potentially harmful treatments for a disease that they do not have, while at the same time missing an opportunity to treat their true ailment. The cost of misdiagnosis on patients and society is not trivial. Many factors contribute to misdiagnosis. Particular points of vulnerability include the evaluation of "atypical" CIDP, interpretation of equivocal nerve conduction studies, over-reliance on elevations in cerebrospinal fluid protein concentration in indeterminate ranges, and placing excessive diagnostic weight on subjective changes following the initiation of immunotherapy. In addition to heighted awareness of the challenges, adherence to CIDP diagnostic guidelines, utilization of objective metrics to document clinical change, and referrals to CIDP centers of excellence are strategies that may improve diagnostic accuracy.
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Affiliation(s)
- Jeffrey A Allen
- Department of Neurology, University of Minnesota, Minneapolis, USA.
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24
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Liberatore G, Manganelli F, Cocito D, Fazio R, Briani C, Filosto M, Benedetti L, Antonini G, Cosentino G, Jann S, Mazzeo A, Cortese A, Marfia GA, Clerici AM, Siciliano G, Carpo M, Sabatelli M, Lauria G, Rosso T, Nobile Orazio E. RELEVANCE OF DIAGNOSTIC INVESTIGATIONS IN CHRONIC INFLAMMATORY DEMYELINATING POLIRADICULONEUROPATHY: DATA FROM THE ITALIAN CIDP DATABASE. J Peripher Nerv Syst 2020; 25:152-161. [PMID: 32343015 DOI: 10.1111/jns.12378] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/09/2020] [Accepted: 04/17/2020] [Indexed: 12/16/2022]
Abstract
Background and aims to report the clinical features and the relevance of diagnostic investigations in patients with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). We retrospectively reviewed data from patients with a clinical diagnosis of CIDP included in a national database. Among the 500 included patients with a clinical diagnosis of CIDP, 437 patients (87%) fulfilled the EFNS/PNS criteria for CIDP (definite in 407, probable in 26, possible in four). In 352 patients (86%) motor nerve conduction abnormalities consistent with demyelination were sufficient for the diagnosis of definite CIDP. In 55 patients this diagnosis required the addition of one or two (from probable or from possible CIDP, respectively) supportive tests, while in 20 cases they improved the diagnosis from possible to probable CIDP, seven patients did not change diagnosis. Considering these 85 patients, CSF studies were performed in 79 cases (93%) upgrading the certainty of diagnosis in 59% of examined patients. Sensory nerve conduction studies were performed in 85% of patients with an improvement of diagnosis in 32% of cases. Nerve biopsy and US/MRI exams resulted positive in about 40% of examined patients, but they were performed in few patients (7 patients and 16 patients, respectively). A response to therapy was present in 84% of treated patients (n = 77), contributing to support the diagnosis in 40 patients in whom the other supportive criteria were not sufficient. In most patients with CIDP the diagnosis is possible solely with motor nerve conduction studies while other investigations may help improving the diagnosis in a minority of patients. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Giuseppe Liberatore
- Neuromuscular and Neuroimmunology Service, Humanitas Clinical and Research Institute, Rozzano, Milan, Italy
| | - Fiore Manganelli
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples 'Federico II', Naples, Italy
| | - Dario Cocito
- Presidio Sanitario Major, Istituti Clinici Scientifici Maugeri, Turin, 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
| | - Luana Benedetti
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa and IRCCS AOU San Martino-IST, Genoa, Italy
- Neurology Unit, Sant'Andrea Hospital, La Spezia, 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
| | - Giuseppe Cosentino
- Department of Experimental BioMedicine and Clinical Neurosciences (BioNeC), University of Palermo, Palermo, Italy
| | - Stefano Jann
- Department of Neuroscience, Niguarda Ca' Granda Hospital, Milan, Italy
| | - Anna Mazzeo
- Department of Clinical and Experimental Medicine, Unit of Neurology, University of Messina, Messina, Italy
| | - Andrea Cortese
- IRCCS Foundation C. Mondino National Neurological Institute, Pavia, Italy
| | - Girolama Alessandra Marfia
- Dysimmune Neuropathies Unit, Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Angelo Maurizio Clerici
- Neurology Unit, Circolo & Macchi Foundation Hospital, Insubria University, DBSV, Varese, Italy
| | - Gabriele Siciliano
- Neurology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Marinella Carpo
- Neurology Unit, ASST Bergamo Ovest-Ospedale Treviglio, Treviglio, Italy
| | - Mario Sabatelli
- NEuroMuscular Omnicentre (NEMO), Serena Onlus Foundation - Pol. A. Gemelli, Rome, Italy
- Catholic University of Sacred Heart, 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
| | - Tiziana Rosso
- ULSS2 Marca Trevigiana, UOC Neurologia-Castelfranco Veneto, Treviso, Italy
| | - Eduardo Nobile Orazio
- Neuromuscular and Neuroimmunology Service, Humanitas Clinical and Research Institute, Rozzano, Milan, Italy
- Department of Medical Biotechnology and Translational Medicine, Milan University, Milan, Italy
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25
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Rajabally YA, Goedee HS, Attarian S, Hartung HP. Management challenges for chronic dysimmune neuropathies during the COVID-19 pandemic. Muscle Nerve 2020; 62:34-40. [PMID: 32311114 PMCID: PMC7264511 DOI: 10.1002/mus.26896] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/29/2022]
Abstract
Since March 2020, the COVID-19 pandemic has led to the need to re-think the delivery of services to patients with chronic dysimmune neuropathies. Telephone/video consultations have become widespread but have compounded concerns about objective evaluation. Therapeutic decisions need, more than ever before, to be considered in the best interests of both patients, and society, while not denying function-preserving/restoring treatment. Immunoglobulin therapy and plasma exchange, for those treated outside of the home, expose patients to the hazards of hospital or outpatient infusion centers. Steroid therapy initiation and continuation pose increased infectious risk. Immunosuppressant therapy similarly becomes highly problematic, with the risks of treatment continuation enhanced by uncertainties regarding duration of the pandemic. The required processes necessitate considerable time and effort especially as resources and staff are re-deployed to face the pandemic, but are essential for protecting this group of patients and as an integral part of wider public health actions.
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Affiliation(s)
- Yusuf A Rajabally
- Inflammatory Neuropathy Clinic, University Hospitals Birmingham, Birmingham, United Kingdom.,Aston Medical School, Aston University, Birmingham, United Kingdom
| | - H Stephan Goedee
- Brain Center Rudolf Magnus, Department of Neurology and Neurosurgery, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - Shahram Attarian
- Reference Centre for Neuromuscular Diseases and ALS, Centre Hospitalier Universitaire La Timone, 264 rue Saint-Pierre, 13385, Marseille, France.,Aix-Marseille University, Inserm, GMGF, Marseille, France
| | - Hans-Peter Hartung
- Department of Neurology, Medical Faculty and Center of Neurology and Neuropsychiatry, LVR Klinikum, Heinrich-Heine University, Düsseldorf, Germany
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26
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Herraets IJT, Goedee HS, Telleman JA, van Eijk RPA, van Asseldonk JT, Visser LH, van den Berg LH, van der Pol WL. Nerve ultrasound improves detection of treatment-responsive chronic inflammatory neuropathies. Neurology 2020; 94:e1470-e1479. [PMID: 31959710 DOI: 10.1212/wnl.0000000000008978] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/07/2019] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVE To examine the diagnostic accuracy of nerve ultrasound in a prospective cohort of consecutive patients with a clinical suspicion of chronic inflammatory neuropathies, including chronic inflammatory demyelinating polyneuropathy, Lewis-Sumner syndrome, and multifocal motor neuropathy, and to determine the added value in the detection of treatment-responsive patients. METHODS Between February 2015 and July 2018, we included 100 consecutive incident patients with a clinical suspicion of chronic inflammatory neuropathy. All patients underwent nerve ultrasound, extensive standardized nerve conduction studies (NCS), and other relevant diagnostic investigations. We evaluated treatment response using predefined criteria. A diagnosis of chronic inflammatory neuropathy was established when NCS were abnormal (fulfilling criteria of demyelination of the European Federation of Neurological Societies/Peripheral Nerve Society) or when the degree of nerve enlargement detected by sonography was compatible with chronic inflammatory neuropathy and there was response to treatment. RESULTS A diagnosis of chronic inflammatory neuropathy was established in 38 patients. Sensitivity and specificity of nerve ultrasound and NCS were 97.4% and 69.4% and 78.9% and 93.5%, respectively. The added value of nerve ultrasound in detection of treatment-responsive chronic inflammatory neuropathy was 21.1% compared to NCS alone. CONCLUSIONS Nerve ultrasound and NCS are complementary techniques with superior sensitivity in the former and specificity in the latter. Addition of nerve ultrasound significantly improves the detection of chronic inflammatory neuropathies. Therefore, it deserves a prominent place in the diagnostic workup of chronic inflammatory neuropathies. CLASSIFICATION OF EVIDENCE This study provides Class IV evidence that nerve ultrasound is an accurate diagnostic tool to detect chronic inflammatory neuropathies.
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Affiliation(s)
- Ingrid J T Herraets
- From the Department of Neurology and Neurosurgery (I.J.T.H., H.S.G., J.A.T., R.P.A.v.E., L.H.v.d.B., W.L.v.d.P.), UMC Utrecht Brain Center Rudolf Magnus; Department of Neurology and Clinical Neurophysiology (I.J.T.H., J.A.T., J.T.v.A., L.H.V.), Elisabeth-Tweesteden Hospital Tilburg; and Biostatistics & Research Support (R.P.A.v.E.), Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands
| | - H Stephan Goedee
- From the Department of Neurology and Neurosurgery (I.J.T.H., H.S.G., J.A.T., R.P.A.v.E., L.H.v.d.B., W.L.v.d.P.), UMC Utrecht Brain Center Rudolf Magnus; Department of Neurology and Clinical Neurophysiology (I.J.T.H., J.A.T., J.T.v.A., L.H.V.), Elisabeth-Tweesteden Hospital Tilburg; and Biostatistics & Research Support (R.P.A.v.E.), Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands
| | - Johan A Telleman
- From the Department of Neurology and Neurosurgery (I.J.T.H., H.S.G., J.A.T., R.P.A.v.E., L.H.v.d.B., W.L.v.d.P.), UMC Utrecht Brain Center Rudolf Magnus; Department of Neurology and Clinical Neurophysiology (I.J.T.H., J.A.T., J.T.v.A., L.H.V.), Elisabeth-Tweesteden Hospital Tilburg; and Biostatistics & Research Support (R.P.A.v.E.), Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands
| | - Ruben P A van Eijk
- From the Department of Neurology and Neurosurgery (I.J.T.H., H.S.G., J.A.T., R.P.A.v.E., L.H.v.d.B., W.L.v.d.P.), UMC Utrecht Brain Center Rudolf Magnus; Department of Neurology and Clinical Neurophysiology (I.J.T.H., J.A.T., J.T.v.A., L.H.V.), Elisabeth-Tweesteden Hospital Tilburg; and Biostatistics & Research Support (R.P.A.v.E.), Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands
| | - J Thies van Asseldonk
- From the Department of Neurology and Neurosurgery (I.J.T.H., H.S.G., J.A.T., R.P.A.v.E., L.H.v.d.B., W.L.v.d.P.), UMC Utrecht Brain Center Rudolf Magnus; Department of Neurology and Clinical Neurophysiology (I.J.T.H., J.A.T., J.T.v.A., L.H.V.), Elisabeth-Tweesteden Hospital Tilburg; and Biostatistics & Research Support (R.P.A.v.E.), Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands
| | - Leo H Visser
- From the Department of Neurology and Neurosurgery (I.J.T.H., H.S.G., J.A.T., R.P.A.v.E., L.H.v.d.B., W.L.v.d.P.), UMC Utrecht Brain Center Rudolf Magnus; Department of Neurology and Clinical Neurophysiology (I.J.T.H., J.A.T., J.T.v.A., L.H.V.), Elisabeth-Tweesteden Hospital Tilburg; and Biostatistics & Research Support (R.P.A.v.E.), Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands
| | - Leonard H van den Berg
- From the Department of Neurology and Neurosurgery (I.J.T.H., H.S.G., J.A.T., R.P.A.v.E., L.H.v.d.B., W.L.v.d.P.), UMC Utrecht Brain Center Rudolf Magnus; Department of Neurology and Clinical Neurophysiology (I.J.T.H., J.A.T., J.T.v.A., L.H.V.), Elisabeth-Tweesteden Hospital Tilburg; and Biostatistics & Research Support (R.P.A.v.E.), Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands
| | - W Ludo van der Pol
- From the Department of Neurology and Neurosurgery (I.J.T.H., H.S.G., J.A.T., R.P.A.v.E., L.H.v.d.B., W.L.v.d.P.), UMC Utrecht Brain Center Rudolf Magnus; Department of Neurology and Clinical Neurophysiology (I.J.T.H., J.A.T., J.T.v.A., L.H.V.), Elisabeth-Tweesteden Hospital Tilburg; and Biostatistics & Research Support (R.P.A.v.E.), Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands.
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27
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Tankisi H, Pugdahl K, Beniczky S, Andersen H, Fuglsang-Frederiksen A. Evidence-based recommendations for examination and diagnostic strategies of polyneuropathy electrodiagnosis. Clin Neurophysiol Pract 2019; 4:214-222. [PMID: 31886447 PMCID: PMC6921232 DOI: 10.1016/j.cnp.2019.10.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/14/2019] [Accepted: 10/29/2019] [Indexed: 11/25/2022] Open
Abstract
The best approach for electrodiagnosis of polyneuropathy (PNP) were tested in 313 patients. Electrodiagnostic screening for distal symmetric PNP (DSP) should start with tibial and sural NCS. Examination of lower limbs at one side is sufficient for electrodiagnostic screening of DSP.
The purpose of this report is to recommend evidence-based strategies for polyneuropathy (PNP) electrodiagnosis based on a large cohort of patients examined prospectively. Nerve conduction studies (NCS) of bilateral tibial, peroneal and sural nerves, the latter with both near-nerve-technique (NNT) and surface recordings, were done in 313 patients with clinically suspected PNP. Bilateral dorsal sural and medial plantar nerves, and unilateral median and ulnar nerves were further examined in a subgroup of patients. The final clinical diagnosis retrieved from the patientś medical records 1–6 years after the neurophysiological investigation served as diagnostic reference standard. The clinical follow-up diagnosis confirmed PNP in 219 patients. The tibial nerve was the most sensitive nerve (75%), with prolonged tibial F-wave as the most sensitive parameter (72%). Sural NNT recordings were more sensitive (66%) than surface recordings (49%) (p < 0.05), however, dorsal sural (68%) and medial planter (70%) nerves had similar sensitivities as NNT. There was no side difference in the incidence of abnormality for any nerve. Based on these results, we recommend a strategy starting with tibial and sural NCS on one side for electrophysiological screening for distal symmetric PNP. If one of these is abnormal, we recommend examining the other lower and upper extremity nerves, including distal sensory nerves, particularly if NNT is not applicable. While one abnormal parameter is sufficient to interpret a nerve as abnormal, we recommend at least two abnormal nerves for PNP diagnosis, preferentially one being the sural nerve. We believe that the strategies recommended in this study may improve PNP electrodiagnosis.
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Affiliation(s)
- H Tankisi
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - K Pugdahl
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - S Beniczky
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - H Andersen
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - A Fuglsang-Frederiksen
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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28
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Bunschoten C, Blomkwist‐Markens PH, Horemans A, Doorn PA, Jacobs BC. Clinical factors, diagnostic delay, and residual deficits in chronic inflammatory demyelinating polyradiculoneuropathy. J Peripher Nerv Syst 2019; 24:253-259. [DOI: 10.1111/jns.12344] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 07/04/2019] [Accepted: 08/05/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Carina Bunschoten
- Department of Neurology, Erasmus MCUniversity Medical Center Rotterdam Rotterdam The Netherlands
| | | | - Anja Horemans
- National Patient Organization for Neuromuscular Diseases Baarn The Netherlands
| | - Pieter A. Doorn
- Department of Neurology, Erasmus MCUniversity Medical Center Rotterdam Rotterdam The Netherlands
| | - Bart C. Jacobs
- Department of Neurology, Erasmus MCUniversity Medical Center Rotterdam Rotterdam The Netherlands
- Department of Immunology, Erasmus MCUniversity Medical Center Rotterdam Rotterdam The Netherlands
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29
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Heming M, Schulte-Mecklenbeck A, Brix T, Wolbert J, Ruland T, Klotz L, Meuth SG, Gross CC, Wiendl H, Meyer Zu Hörste G. Immune Cell Profiling of the Cerebrospinal Fluid Provides Pathogenetic Insights Into Inflammatory Neuropathies. Front Immunol 2019; 10:515. [PMID: 30984164 PMCID: PMC6448021 DOI: 10.3389/fimmu.2019.00515] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 02/26/2019] [Indexed: 01/17/2023] Open
Abstract
Objective: Utilize immune cell profiles in the cerebrospinal fluid (CSF) to advance the understanding and potentially support the diagnosis of inflammatory neuropathies. Methods: We analyzed CSF cell flow cytometry data of patients with definite Guillain-Barré syndrome (GBS, n = 26) and chronic inflammatory demyelinating polyneuropathy (CIDP, n = 32) based on established diagnostic criteria in comparison to controls with relapsing-remitting multiple sclerosis (RRMS, n = 49) and idiopathic intracranial hypertension (IIH, n = 63). Results: Flow cytometry revealed disease-specific changes of CSF cell composition with a significant increase of NKT cells and CD8+ T cells in CIDP, NK cells in GBS, and B cells and plasma cells in MS in comparison to IIH controls. Principal component analysis demonstrated distinct CSF immune cells pattern in inflammatory neuropathies vs. RRMS. Systematic receiver operator curve (ROC) analysis identified NKT cells as the best parameter to distinguish GBS from CIDP. Composite scores combing several of the CSF parameters differentiated inflammatory neuropathies from IIH and GBS from CIDP with high confidence. Applying a novel dimension reduction technique, we observed an intra-disease heterogeneity of inflammatory neuropathies. Conclusion: Inflammatory neuropathies display disease- and subtype-specific alterations of CSF cell composition. The increase of NKT cells and CD8+ T cells in CIDP and NK cells in GBS, suggests a central role of cytotoxic cell types in inflammatory neuropathies varying between acute and chronic subtypes. Composite scores constructed from multi-dimensional CSF parameters establish potential novel diagnostic tools. Intra-disease heterogeneity suggests distinct disease mechanisms in subgroups of inflammatory neuropathies.
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Affiliation(s)
- Michael Heming
- Department of Neurology, Institute of Translational Neurology, University of Münster, Münster, Germany
| | | | - Tobias Brix
- Institute of Medical Informatics, University of Münster, Münster, Germany
| | - Jolien Wolbert
- Department of Neurology, Institute of Translational Neurology, University of Münster, Münster, Germany
| | - Tillmann Ruland
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Luisa Klotz
- Department of Neurology, Institute of Translational Neurology, University of Münster, Münster, Germany
| | - Sven G Meuth
- Department of Neurology, Institute of Translational Neurology, University of Münster, Münster, Germany
| | - Catharina C Gross
- Department of Neurology, Institute of Translational Neurology, University of Münster, Münster, Germany
| | - Heinz Wiendl
- Department of Neurology, Institute of Translational Neurology, University of Münster, Münster, Germany
| | - Gerd Meyer Zu Hörste
- Department of Neurology, Institute of Translational Neurology, University of Münster, Münster, Germany
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Intravenous immunoglobulins in patients with clinically suspected chronic immune-mediated neuropathy. J Neurol Sci 2019; 397:141-145. [DOI: 10.1016/j.jns.2018.12.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/28/2018] [Accepted: 12/31/2018] [Indexed: 02/07/2023]
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Bunschoten C, Eftimov F, van der Pol WL, Jacobs BC. International chronic inflammatory demyelinating polyneuropathy outcome study (ICOS): Protocol of a prospective observational cohort study on clinical and biological predictors of disease course and outcome. J Peripher Nerv Syst 2019; 24:34-38. [PMID: 30570196 DOI: 10.1111/jns.12296] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 12/14/2018] [Indexed: 12/29/2022]
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is a heterogeneous immune-mediated disorder with extensive variation in clinical presentation, electrophysiological phenotype, treatment response and long-term outcome. This heterogeneity may reflect the existence of distinct subtypes of CIDP with a different pathogenesis that require personalized treatment. The International CIDP Outcome Study (ICOS) is a prospective, observational, multicenter cohort study that aims to describe this variation and to define clinical and biological determinants and predictors of these subtypes, disease activity, treatment response and outcome. All patients fulfilling the European Federation of Neurological Societies/Peripheral Nerve Society 2010 diagnostic criteria for CIDP can participate, independent of age, duration and severity of the disease or treatment. We collect data on the clinical presentation, diagnostics, validated clinical outcome measures, (response to) treatment, and we collect biomaterials (DNA, cerebrospinal fluid and serial serum samples). We aim to include at least 1000 CIDP patients with a follow-up of at least 2 years. ICOS started in November 2015 in three academic medical centers in The Netherlands and by October 2018 169 patients are included: 69 new and 100 prevalent cases. ICOS is based on the format of the International Guillain-Barré syndrome (GBS) Outcome Study (IGOS). Dutch centers are invited to participate in ICOS that will continue as an independent national registry. International centers will be able to collect data and biomaterials according to the ICOS protocol by using the optional ICOS module within the INCbase infrastructure. ICOS will help to standardize the collection of data and biosamples for future research in CIDP.
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Affiliation(s)
- Carina Bunschoten
- Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Filip Eftimov
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - W-Ludo van der Pol
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Bart C Jacobs
- Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Immunology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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Gelinas D, Katz J, Nisbet P, England JD. Current practice patterns in CIDP: A cross-sectional survey of neurologists in the United States. J Neurol Sci 2018; 397:84-91. [PMID: 30597419 DOI: 10.1016/j.jns.2018.11.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 11/15/2018] [Accepted: 11/26/2018] [Indexed: 10/27/2022]
Abstract
To evaluate how neurologists make decisions regarding chronic inflammatory demyelinating polyneuropathy (CIDP), we conducted a cross-sectional quantitative survey of 100 community neurologists in the United States. Only 13% cited using the European Federation of Neurological Societies/Peripheral Nerve Society guideline. In addition, variability in treatment approaches existed regarding the dose of IVIg used, the length of IVIg therapy before determining response, the outcome measures used to determine IVIg response, and the protocol for weaning off therapy. Forty-three percent reported giving doses that were lower than the recommended IVIg loading dose for CIDP. Many reported giving nonspecific patient education about the rationale of IVIg use and treatment duration. The finding that approximately half of community neurologists endorsed electrodiagnostic criteria that do not support CIDP diagnosis indicated difficulties relying heavily upon neurophysiologic studies in diagnostic guidelines. More education on CIDP diagnosis and treatment and a clear, actionable, clinically focused guideline would enhance best practices, particularly in the midst of high information flow and multiple guidelines.
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Affiliation(s)
- Deborah Gelinas
- Medical Affairs, Grifols, 79 T.W. Alexander Drive, 4101 Research Commons, Research Triangle Park, NC 27709, USA.
| | - Jonathan Katz
- California Pacific Medical Center, 2324 Sacramento Street, Suite 111, San Francisco, CA 94115, USA.
| | - Paul Nisbet
- One Research, LLC, 1150 Hungry Neck Blvd. Suite C-303, Mt. Pleasant, SC 29464, USA.
| | - John D England
- Louisiana State University Health Sciences Center, School of Medicine, 1542 Tulane Avenue, Rm 721, New Orleans, LA 70112, USA.
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Abstract
Since the discovery of an acute monophasic paralysis, later coined Guillain-Barré syndrome, almost 100 years ago, and the discovery of chronic, steroid-responsive polyneuropathy 50 years ago, the spectrum of immune-mediated polyneuropathies has broadened, with various subtypes continuing to be identified, including chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) and multifocal motor neuropathy (MMN). In general, these disorders are speculated to be caused by autoimmunity to proteins located at the node of Ranvier or components of myelin of peripheral nerves, although disease-associated autoantibodies have not been identified for all disorders. Owing to the numerous subtypes of the immune-mediated neuropathies, making the right diagnosis in daily clinical practice is complicated. Moreover, treating these disorders, particularly their chronic variants, such as CIDP and MMN, poses a challenge. In general, management of these disorders includes immunotherapies, such as corticosteroids, intravenous immunoglobulin or plasma exchange. Improvements in clinical criteria and the emergence of more disease-specific immunotherapies should broaden the therapeutic options for these disabling diseases.
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Levine TD, Katz JS, Barohn R, Vaughan LJ, Dimachkie MM, Saperstein DS, Mozaffar T, Wolfe GI, Mayo MS, Badger GJ, Katzin L, Ritt E, Greer M, DiStefano J, Schmidt PM. Review process for IVIg treatment: Lessons learned from INSIGHTS neuropathy study. Neurol Clin Pract 2018; 8:429-436. [PMID: 30564497 PMCID: PMC6276327 DOI: 10.1212/cpj.0000000000000520] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Background This project is an effort to understand how orders for IV immunoglobulin (IVIg) are documented and prescribed by physicians, and subsequently, how they are reviewed by insurance companies for the treatment of immune neuropathies. Methods A panel of neuromuscular specialists reviewed case records from 248 IVIg-naive patients whose in-home IVIg infusion treatment was submitted to insurance for authorization. After reviewing a case record, 1 panelist was asked to make a diagnosis and to answer several questions about the treatment. A second panelist reviewed the original record and follow-up records that were obtained for reauthorization of additional treatments and was asked to determine whether the patient had responded to the treatment. Results Our specialists believed that only 32.2% of 248 patients had an immune neuropathy and were appropriate candidates for IVIg therapy, whereas 46.4% had neuropathies that were not immune mediated. Only 15.3% of cases met electrodiagnostic criteria for a demyelinating neuropathy. Our specialists believed that 36.7% of 128 cases with follow-up records had responded to therapy. In cases in which the initial reviewer had predicted that there would be a response to IVIg, the second reviewer found that 54% had responded. This is compared with a 27% response rate when the first reviewer predicted that there would be no response (p = 0.019). Conclusions Our expert review finds that the diagnosis of immune neuropathies made by providers, and subsequently approved for IVIg therapy by payers, is incorrect in a large percentage of cases. If payers include an expert in their review process, it would improve patient selection, appropriate use, and continuation of treatment with this expensive therapeutic agent.
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Affiliation(s)
- Todd D Levine
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Jonathan S Katz
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Richard Barohn
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Leslie J Vaughan
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Mazen M Dimachkie
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - David S Saperstein
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Tahseen Mozaffar
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Gil I Wolfe
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Matthew S Mayo
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Gary J Badger
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Lara Katzin
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Elissa Ritt
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Michelle Greer
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Joseph DiStefano
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
| | - Patrick M Schmidt
- Phoenix Neurological Associates, AZ (TDL, DSS); California Pacific Medical Center (JSK), San Francisco; The University of Kansas School of Medicine (RB, MMD, MSM); NuFACTOR, Inc. (LJV, GJB, ER, MG, JD, PMS), Temecula, CA; University of California Irvine (TM); State University of New York at Buffalo (GIW); and Grand Rounds LLC (LK), San Francisco, CA
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Tan CY, Arumugam T, Razali SNO, Yahya MA, Goh KJ, Shahrizaila N. Nerve ultrasound can distinguish chronic inflammatory demyelinating polyneuropathy from demyelinating diabetic sensorimotor polyneuropathy. J Clin Neurosci 2018; 57:198-201. [PMID: 30145079 DOI: 10.1016/j.jocn.2018.08.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/13/2018] [Indexed: 12/14/2022]
Abstract
Diabetic patients with poor glycaemic control can demonstrate demyelinating distal sensorimotor polyneuropathy (D-DSP) on electrophysiology. Distinguishing D-DSP from chronic inflammatory demyelinating polyneuropathy (CIDP) can be challenging. In this study, we investigated the role of nerve ultrasound in differentiating the two neuropathies. Nerve ultrasound findings of D-DSP patients (fulfilling the electrophysiological but not clinical criteria for CIDP) were compared with non-diabetic CIDP patients (fulfilling both criteria). We studied 108 and 95 nerves from 9 D-DSP and 10 CIDP patients respectively. CIDP patients had significantly larger cross-sectional areas of the median nerve at the mid-arm (17.0 ± 12.5 vs 8.7 ± 2.6; p = 0.005), ulnar nerve at the wrist (7.3 ± 3.1 vs 4.1 ± 1.0; p = 0.001), mid forearm (8.8 ± 5.3 vs 5.5 ± 1.5; p = 0.002) and mid-arm (14.5 ± 14.1 vs 7.5 ± 1.9; p = 0.013), and radial nerve at mid forearm (4.1 ± 2.4 vs 1.2 ± 0.4; p < 0.001). In comparison to D-DSP, CIDP patients had markedly larger nerves at the proximal and non-entrapment sites of the upper limbs, suggesting that nerve ultrasound is useful in differentiating the two neuropathies.
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Affiliation(s)
- Cheng-Yin Tan
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Thaarani Arumugam
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Siti Nur Omaira Razali
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Mohd Azly Yahya
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Khean-Jin Goh
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Nortina Shahrizaila
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Bilateral facial nerve palsies secondary to chronic inflammatory demyelinating polyneuropathy following adalimumab treatment. Clin Neurol Neurosurg 2018; 164:64-66. [DOI: 10.1016/j.clineuro.2017.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 10/30/2017] [Accepted: 11/03/2017] [Indexed: 11/21/2022]
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Chronic Inflammatory Demyelinating Polyradiculoneuropathy. Neuromuscul Disord 2018. [DOI: 10.1007/978-981-10-5361-0_38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Rajabally YA, Stettner M, Kieseier BC, Hartung HP, Malik RA. CIDP and other inflammatory neuropathies in diabetes — diagnosis and management. Nat Rev Neurol 2017; 13:599-611. [DOI: 10.1038/nrneurol.2017.123] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Mahdi‐Rogers M, Brassington R, Gunn AA, van Doorn PA, Hughes RAC. Immunomodulatory treatment other than corticosteroids, immunoglobulin and plasma exchange for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev 2017; 5:CD003280. [PMID: 28481421 PMCID: PMC6481566 DOI: 10.1002/14651858.cd003280.pub5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a disease that causes progressive or relapsing and remitting weakness and numbness. It is probably caused by an autoimmune process. Immunosuppressive or immunomodulatory drugs would be expected to be beneficial. This review was first published in 2003 and has been updated most recently in 2016. OBJECTIVES To assess the effects of immunomodulatory and immunosuppressive agents other than corticosteroids, immunoglobulin, and plasma exchange in CIDP. SEARCH METHODS On 24 May 2016, we searched the Cochrane Neuromuscular Specialised Register, the Cochrane Central Register of Controlled Trials (CENTRAL; 2016, Issue 4) in the Cochrane Library, MEDLINE, Embase, CINAHL, and LILACS for completed trials, and clinical trial registers for ongoing trials. We contacted the authors of the trials identified and other disease experts seeking other published and unpublished trials. SELECTION CRITERIA We sought randomised and quasi-randomised trials of all immunosuppressive agents, such as azathioprine, cyclophosphamide, methotrexate, ciclosporin, mycophenolate mofetil, and rituximab, and all immunomodulatory agents, such as interferon (IFN) alfa and IFN beta, in participants fulfilling standard diagnostic criteria for CIDP. We included all comparisons of these agents with placebo, another treatment, or no treatment. DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by Cochrane. We wanted to measure the change in disability after one year as our primary outcome. Our secondary outcomes were change in disability after four or more weeks (from randomisation); change in impairment after at least one year; change in maximum motor nerve conduction velocity and compound muscle action potential amplitude after one year; and for participants who were receiving corticosteroids or intravenous immunoglobulin (IVIg), the amount of this medication given during at least one year after randomisation. Participants with one or more serious adverse events during the first year was also a secondary outcome. MAIN RESULTS Four trials fulfilled the selection criteria: one of azathioprine (27 participants), two of IFN beta-1a (77 participants in total) and one of methotrexate (60 participants). The risk of bias was considered low in the trials of IFN beta-1a and methotrexate but high in the trial of azathioprine. None of the trials showed significant benefit in any of the outcomes selected by their authors. The results of the outcomes which approximated most closely to the primary outcome for this review were as follows.In the azathioprine trial there was a median improvement in the Neuropathy Impairment Scale (scale range 0 to 280) after nine months of 29 points (range 49 points worse to 84 points better) in the azathioprine and prednisone treated participants compared with 30 points worse (range 20 points worse to 104 points better) in the prednisone alone group. There were no reports of adverse events.In a cross-over trial of IFN beta-1a with 20 participants, the treatment periods were 12 weeks. The median improvement in the Guy's Neurological Disability Scale (range 1 to 10) was 0.5 grades (interquartile range (IQR) 1.8 grades better to zero grade change) in the IFN beta-1a treatment period and 0.5 grades (IQR 1.8 grades better to 1.0 grade worse) in the placebo treatment period. There were no serious adverse events in either treatment period.In a parallel group trial of IFN beta-1a with 67 participants, none of the outcomes for this review was available. The trial design involved withdrawal from ongoing IVIg treatment. The primary outcome used by the trial authors was total IVIg dose administered from week 16 to week 32 in the placebo group compared with the IFN beta-1a groups. This was slightly but not significantly lower in the combined IFN beta-1a groups (1.20 g/kg) compared with the placebo group (1.34 g/kg, P = 0.75). There were four participants in the IFN beta-1a group and none in the placebo group with one or more serious adverse events, risk ratio (RR) 4.50 (95% confidence interval (CI) 0.25 to 80.05).The methotrexate trial had a similar design involving withdrawal from ongoing corticosteroid or IVIg treatment. At the end of the trial (approximately 40 weeks) there was no significant difference in the change in the Overall Neuropathy Limitations Scale, a disability scale (scale range 0 to 12), the median change being 0 (IQR -1 to 0) in the methotrexate group and 0 (IQR -0.75 to 0) in the placebo group. These changes in disability might have been confounded by the reduction in corticosteroid or IVIg dose required by the protocol. There were three participants in the methotrexate group and one in the placebo with one or more serious adverse events, RR 3.56 (95% CI 0.39 to 32.23). AUTHORS' CONCLUSIONS Low-quality evidence from randomised trials does not show significant benefit from azathioprine or interferon beta-1a and moderate-quality evidence from one randomised trial does not show significant benefit from a relatively low dose of methotrexate for the treatment of CIDP. None of the trials was large enough to rule out small or moderate benefit. The evidence from observational studies is insufficient to avoid the need for randomised controlled trials to discover whether these drugs are beneficial. Future trials should have improved designs, more sensitive outcome measures relevant to people with CIDP, and longer treatment durations.
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Affiliation(s)
| | - Ruth Brassington
- National Hospital for Neurology and NeurosurgeryQueen Square Centre for Neuromuscular DiseasesPO Box 114LondonUKWC1N 3BG
| | - Angela A Gunn
- National Hospital for Neurology and NeurosurgeryMRC Centre for Neuromuscular DiseasesPO Box 114LondonUKWC1N 3BG
| | - Pieter A van Doorn
- Erasmus University Medical CenterDepartment of NeurologyPO Box 2040RotterdamNetherlands3000 CA
| | - Richard AC Hughes
- National Hospital for Neurology and NeurosurgeryMRC Centre for Neuromuscular DiseasesPO Box 114LondonUKWC1N 3BG
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Haliloğlu G, Yüksel D, Temuçin CM, Topaloğlu H. Challenges in pediatric chronic inflammatory demyelinating polyneuropathy. Neuromuscul Disord 2016; 26:817-824. [DOI: 10.1016/j.nmd.2016.09.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/09/2016] [Accepted: 09/20/2016] [Indexed: 10/21/2022]
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Bril V, Blanchette CM, Noone JM, Runken MC, Gelinas D, Russell JW. The dilemma of diabetes in chronic inflammatory demyelinating polyneuropathy. J Diabetes Complications 2016; 30:1401-7. [PMID: 27389526 PMCID: PMC5528142 DOI: 10.1016/j.jdiacomp.2016.05.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 05/03/2016] [Accepted: 05/06/2016] [Indexed: 12/13/2022]
Abstract
PURPOSE We reviewed the literature on chronic inflammatory demyelinating polyneuropathy (CIDP) in diabetes mellitus (DM) and explored real-world data on the prevalence and treatment of CIDP within DM. METHODS A literature search of Scopus was performed for the terms chronic inflammatory demyelinating polyradiculoneuropathy, chronic inflammatory demyelinating polyneuropathy, CIDP, and prevalence, incidence, epidemiology, or diabetes; peripheral neuropathy and prevalence or diabetes. We also searched through the reference lists of the resulting publications for additional findings that may have been missed. Additional publications on guidelines for the diagnosis of CIDP and diabetic neuropathy were also included. A descriptive analysis of the 2009-2013 PharMetrics Plus™ Database was performed to estimate the prevalence and treatment of CIDP within the DM population. RESULTS There is an increasing body of literature suggesting that the prevalence of CIDP tends to be higher in diabetic patients, especially in those of older age. Our real-world data seem to support published findings from the literature. For the total cohort (N=101,321,694), the percent prevalence of CIDP (n=8,173) was 0.008%; DM (n=4,026,740) was 4%. The percent prevalence of CIDP without DM (n=5,986) was 0.006%; CIDP with DM (n=2,187) was 9-fold higher at 0.054%. For patients >50years old, there was a significantly higher percentage of CIDP with DM than CIDP without DM. Approximately 50% of CIDP patients were treated with IVIg, 23%-24% with steroids, 1%-2% with PE, and 20%-23% received no treatment. CONCLUSIONS In addition to the growing evidence of higher prevalence of CIDP in DM, our findings reinforce the need for heightened awareness of the association of CIDP and DM.
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Affiliation(s)
- Vera Bril
- Division of Neurology, University of Toronto, 200 Elizabeth St, 5EC-309, TGH, Toronto, ON, M5G 2C4, Canada
| | - Christopher M Blanchette
- Department of Public Health Sciences, University of North Carolina at Charlotte, 9201 University City Blvd, Charlotte, NC 28223, USA
| | - Joshua M Noone
- Department of Public Health Sciences, University of North Carolina at Charlotte, 9201 University City Blvd, Charlotte, NC 28223, USA
| | - M Chris Runken
- Department of Medical Affairs, Grifols, 79 TW Alexander Dr. Bldg 4101 Research Commons, Research Triangle Park, NC 27709, USA
| | - Deborah Gelinas
- Department of Medical Affairs, Grifols, 79 TW Alexander Dr. Bldg 4101 Research Commons, Research Triangle Park, NC 27709, USA
| | - James W Russell
- Department of Neurology, University of Maryland School of Medicine, and VA Maryland Health Care System, 110S Paca Street, 3S-129, Baltimore, MD, 21201, USA.
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Allen JA, Bril V. Improving the management of chronic inflammatory demyelinating polyradiculoneuropathy. Neurodegener Dis Manag 2016; 6:237-47. [DOI: 10.2217/nmt-2015-0011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
This article considers several issues of current interest relating to the management of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), including diagnostic pitfalls, differences between CIDP patients with and without concurrent diabetes mellitus and how to best measure treatment response in daily practice. Despite the availability of diagnostic criteria, many patients diagnosed with CIDP do not meet these criteria; reasons for misdiagnosis are discussed. There are no definitive predictors of treatment response in CIDP; however, certain clinical and electrophysiological characteristics may be helpful. Patients with CIDP and concurrent diabetes present an additional diagnostic challenge; the differences between these groups, including possible differences in response predictors are discussed. Finally, the most appropriate outcome measures for use in daily practice are considered.
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Affiliation(s)
- Jeffrey A Allen
- Neuromuscular Division, Department of Neurology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Vera Bril
- Division of Neurology, Department of Medicine, The Ellen & Martin Prosserman Centre for Neuromuscular Diseases, University Health Network, University of Toronto, Toronto, Canada
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Rinalduzzi S, Serafini M, Capozza M, Accornero N, Missori P, Trompetto C, Fattapposta F, Currà A. Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy. PLoS One 2016; 11:e0151629. [PMID: 26977594 PMCID: PMC4792479 DOI: 10.1371/journal.pone.0151629] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 03/02/2016] [Indexed: 11/19/2022] Open
Abstract
Introduction Polyneuropathy leads to postural instability and an increased risk of falling. We investigated how impaired motor impairment and proprioceptive input due to neuropathy influences postural strategies. Methods Platformless bisegmental posturography data were recorded in healthy subjects and patients with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Each subject stood on the floor, wore a head and a hip electromagnetic tracker. Sway amplitude and velocity were recorded and the mean direction difference (MDD) in the velocity vector between trackers was calculated as a flexibility index. Results Head and hip postural sway increased more in patients with CIDP than in healthy controls. MDD values reflecting hip strategies also increased more in patients than in controls. In the eyes closed condition MDD values in healthy subjects decreased but in patients remained unchanged. Discussion Sensori-motor impairment changes the balance between postural strategies that patients adopt to maintain upright quiet stance. Motor impairment leads to hip postural strategy overweight (eyes open), and prevents strategy re-balancing when the sensory context predominantly relies on proprioceptive input (eyes closed).
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Affiliation(s)
- Steno Rinalduzzi
- Neurology and Neurophysiopathology Unit, Sandro Pertini Hospital, Rome, Italy
- * E-mail:
| | - Marco Serafini
- Neurology and Neurophysiopathology Unit, Sandro Pertini Hospital, Rome, Italy
| | - Marco Capozza
- Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
| | - Neri Accornero
- Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
| | - Paolo Missori
- Neurosurgery Unit, Policlinico Umberto I, Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
| | - Carlo Trompetto
- Institute of Neurology, Department of Neurosciences, Ophthalmology and Genetics, University of Genova, Genova, Italy
| | | | - Antonio Currà
- Academic Neurology Unit, A. Fiorini Hospital, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Terracina (LT), Italy
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Chroni E, Dimisianos N, Punga AR. Low vitamin D levels in healthy controls and patients with autoimmune neuromuscular disorders in Greece. Acta Neurol Belg 2016; 116:57-63. [PMID: 26183131 DOI: 10.1007/s13760-015-0512-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 07/07/2015] [Indexed: 12/23/2022]
Abstract
Normal autoimmune function is dependent on adequate levels of activated vitamin D, 25 hydroxy vitamin D [25(OH)D]. A recent study presented deficiency of 25(OH)D levels in Swedish MG patients. We aimed to study 25(OH)D levels in patients with MG and autoimmune polyneuropathies (PNP) at a southern latitude in Greece. Plasma levels of 25(OH)D were analyzed in Greek patients with MG (n = 19), immune-mediated PNP (N = 11) and in 30 Greek healthy age- and sex-matched controls. Ten MG patients received supplementation with vitamin D3. The MG Composite Score (MGC) and MG quality of life assessed disease severity in MG patients, whereas the INCAT Disability Scale assessed clinical features in the PNP patients. MG patients with and without vitamin D3 supplementation had higher 25(OH)D levels (mean 58.8 ± 16.3 and 62.0 ± 22.4 nmol/L, respectively) than PNP patients (mean 42.1 ± 11.5 nmol/L, p = 0.01) and healthy controls (mean 45.7 ± 13.8 nmol/L, p = 0.01). Plasma 25(OH)D levels was lower with age in all groups. There were no correlations between 25(OH)D and disease duration, MGC score, or INCAT score. Vitamin D deficiency was found in all Greek patient groups and healthy controls. Levels of 25(OH)D were higher in MG patients with as well as without vitamin D supplementation compared to healthy controls, whereas CIDP/GBS patients had levels similar to controls.
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Affiliation(s)
- Elisabeth Chroni
- Department of Neurology, School of Medicine, University of Patras, Patras, Greece
| | - Nikolaos Dimisianos
- Department of Neurology, School of Medicine, University of Patras, Patras, Greece
| | - Anna Rostedt Punga
- Department of Clinical Neurophysiology, Institute of Neuroscience, Uppsala University Hospital, Uppsala University, 75185, Uppsala, Sweden.
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Devic P, Petiot P, Mauguiere F. Diagnostic utility of somatosensory evoked potentials in chronic polyradiculopathy without electrodiagnostic signs of peripheral demyelination. Muscle Nerve 2015; 53:78-83. [DOI: 10.1002/mus.24693] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/15/2015] [Accepted: 04/21/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Perrine Devic
- Hospices Civils de Lyon; Université Lyon I, Hôpital Neurologique Pierre Wertheimer, Service de Neurologie Fonctionnelle et d'Epileptologie; 59 Boulevard Pinel 69003 Lyon France
- Hospices Civils de Lyon; Université Lyon I, Hôpital de la Croix-Rousse, Centre de Référence Maladies Neuro-musculaires Rares; Lyon France
| | - Philippe Petiot
- Hospices Civils de Lyon; Université Lyon I, Hôpital de la Croix-Rousse, Centre de Référence Maladies Neuro-musculaires Rares; Lyon France
| | - François Mauguiere
- Hospices Civils de Lyon; Université Lyon I, Hôpital Neurologique Pierre Wertheimer, Service de Neurologie Fonctionnelle et d'Epileptologie; 59 Boulevard Pinel 69003 Lyon France
- Centre de Recherche en Neurosciences de Lyon; INSERM U 1028 Lyon France
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Abstract
UNLABELLED Chronic inflammatory demyelinating polyradiculoneuropathy is a chronic progressive or relapsing and remitting disease with a prevalence of up to 8.9 per 100,000. METHODS This review discusses possible mechanisms, none of which are proven, and describes the evidence for its treatment. RESULTS Cochrane Reviews provide evidence that corticosteroids, intravenous immunoglobulin, and plasma exchange are effective short-term treatments. Attempts to confirm the efficacy of other immunosuppressant agents have not been successful, although they are often used in people whose disease is resistant to the first-line treatments. CONCLUSIONS More and better trials are needed.
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Affiliation(s)
- Richard Hughes
- MRC Centre for Neuromuscular Disease, National Hospital for Neurology and Neurosurgery, PO Box 114, Queen Square, London, WC1N 3BG, UK,
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Abraham A, Albulaihe H, Alabdali M, Qrimli M, Breiner A, Barnett C, Katzberg HD, Lovblom LE, Perkins BA, Bril V. Elevated Vibration Perception Thresholds in CIDP Patients Indicate More Severe Neuropathy and Lower Treatment Response Rates. PLoS One 2015; 10:e0139689. [PMID: 26545096 PMCID: PMC4636179 DOI: 10.1371/journal.pone.0139689] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 09/16/2015] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Vibration perception threshold (VPT) examination using a neurothesiometer provides objective, sensitive and specific information, and has been utilized mainly in patients with diabetic polyneropathy. OBJECTIVES Explore the utility of VPT examination in CIDP patients. METHODS CIDP subjects attending the Neuromuscular clinic between 01/2013 and 12/2014 were evaluated. Demographic data, clinical history, physical examination, VPT values, and electrophysiologic data from their charts were extracted. RESULTS 70 charts were reviewed. 55 CIDP patients had elevated VPT, associated with higher frequency of abnormal sensory testing for various modalities (92.7% vs. 46.7%, p<0.0001), lower sensory and motor amplitudes and reduced conduction velocities on nerve conduction studies, and lower treatment response rates (54% vs. 93%, p = 0.01). CONCLUSION VPT examination is a simple tool, which is a reliable and sensitive measure not only for diabetic neuropathy, but also for CIDP. Moreover, in CIDP, elevated VPT values are also associated with lower treatment response rates.
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Affiliation(s)
- Alon Abraham
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Hana Albulaihe
- Department of Neurology, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - Majed Alabdali
- Department of Neurology, King Fahad Hospital of the University, University of Dammam, Dammam, Saudi Arabia
| | - Mohammad Qrimli
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Ari Breiner
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Carolina Barnett
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Hans D. Katzberg
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Leif E. Lovblom
- Division of Endocrinology and Metabolism, Department of Medicine, Mount Sinai, Hospital and Lunenfeld Tanenbaum Research Institute, University of Toronto, Toronto, Canada
| | - Bruce A. Perkins
- Division of Endocrinology and Metabolism, Department of Medicine, Mount Sinai, Hospital and Lunenfeld Tanenbaum Research Institute, University of Toronto, Toronto, Canada
| | - Vera Bril
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
- * E-mail:
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Abraham A, Alabdali M, Qrimli M, Albulaihe H, Breiner A, Barnett C, Katzberg HD, Lovblom LE, Perkins BA, Bril V. Treatment Responsiveness in CIDP Patients with Diabetes Is Associated with Higher Degrees of Demyelination. PLoS One 2015; 10:e0139674. [PMID: 26461125 PMCID: PMC4603787 DOI: 10.1371/journal.pone.0139674] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 09/16/2015] [Indexed: 12/25/2022] Open
Abstract
Introduction Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is one of several chronic treatable acquired demyelinating neuropathies. Objectives To explore the association between the degree of demyelination in CIDP, and treatment responsiveness. Methods A retrospective chart review of CIDP subjects assessed between 1997 and 2013 was performed to compare treatment responsiveness using different sets of criteria. Results 99 CIDP patients were included, 34 with diabetes mellitus (DM). Treatment responsiveness was higher in CIDP-DM fulfilling 1 or more EFNS/PNS criteria, (63% vs. 31%, p = 0.03), and in CIDP+DM fulfilling 2 or more criteria (89% vs. 36%, p = 0.01). Nonetheless, treatment responsiveness in CIDP+DM had the highest odds ratio (3.73, p = 0.01). Similar results were also shown in simplified uniform study criteria, with 10% cut off values for CIDP-DM, compared to 30% for CIDP+DM. Conclusion In CIDP+DM, higher degrees of demyelination are associated with treatment responsiveness, implying the need to adjust current criteria in these patients.
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Affiliation(s)
- Alon Abraham
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Majed Alabdali
- Department of Neurology, King Fahad Hospital of the University, University Of Dammam, Dammam, Saudi Arabia
| | - Mohammad Qrimli
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Hana Albulaihe
- Department of Neurology, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - Ari Breiner
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Carolina Barnett
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Hans D. Katzberg
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
| | - Leif E. Lovblom
- Division of Endocrinology and Metabolism, Department of Medicine, Mount Sinai, Hospital and Lunenfeld Tanenbaum Research Institute, University of Toronto, Toronto, Canada
| | - Bruce A. Perkins
- Division of Endocrinology and Metabolism, Department of Medicine, Mount Sinai, Hospital and Lunenfeld Tanenbaum Research Institute, University of Toronto, Toronto, Canada
| | - Vera Bril
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada
- * E-mail:
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Blum S, Csurhes P, McCombe P. The frequencies of Killer immunoglobulin-like receptors and their HLA ligands in chronic inflammatory demyelinating polyradiculoneuropathy are similar to those in Guillian Barre syndrome but differ from those of controls, suggesting a role for NK cells in pathogenesis. J Neuroimmunol 2015. [PMID: 26198918 DOI: 10.1016/j.jneuroim.2015.05.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an acquired inflammatory neuropathy, which has similar clinical and pathological features to Guillain-Barré Syndrome (GBS), but differs in time course. We investigated the frequency of genes encoding Killer immunoglobulin-like receptors and their HLA ligands in subjects with CIDP, in subjects with GBS and in healthy controls. There were no differences in KIR gene frequency among the 3 groups. The gene frequencies for HLA-B Bw4-I were significantly greater in CIDP than HC, but did not differ from GBS. The frequency of the combination of 3DL1/HLA-B Bw4I was greater in CIDP than HC, but did not differ from that of GBS. These data raise the possibility of NK cell function being an important factor in the pathogenesis of CIDP.
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Affiliation(s)
- Stefan Blum
- Royal Brisbane and Women's Hospital, Department of Neurology, Butterfield Street, Herston QLD 4029, Australia; University of Queensland, Centre for Clinical Research, Herston Campus, Herston, QLD 4029, Australia
| | - Peter Csurhes
- University of Queensland, Centre for Clinical Research, Herston Campus, Herston, QLD 4029, Australia
| | - Pamela McCombe
- Royal Brisbane and Women's Hospital, Department of Neurology, Butterfield Street, Herston QLD 4029, Australia; University of Queensland, Centre for Clinical Research, Herston Campus, Herston, QLD 4029, Australia
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Allen JA, Lewis RA. CIDP diagnostic pitfalls and perception of treatment benefit. Neurology 2015; 85:498-504. [PMID: 26180143 DOI: 10.1212/wnl.0000000000001833] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 03/27/2015] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE We aimed to explore the diagnosis and misdiagnosis of chronic inflammatory demyelinating polyneuropathy (CIDP) and to identify pitfalls that erroneously lead to a misdiagnosis. METHODS A retrospective study of 59 consecutive patients referred with a diagnosis of CIDP was performed. Patients were classified as having or not having CIDP according to European Federation of Neurological Societies/Peripheral Nerve Society (EFNS/PNS) criteria. Diagnostic and treatment data were compared in the 2 groups. RESULTS Forty-seven percent of patients referred with a diagnosis of CIDP failed to meet minimal CIDP diagnostic requirements. All misdiagnosed patients who satisfied EFNS/PNS clinical criteria would be considered atypical as defined by the EFNS/PNS. CSF cytoalbuminologic dissociation was present in 50% of those without CIDP, although protein elevations were generally mild. Nerve conduction studies in patients without CIDP were heterogeneous, but generally showed demyelinating features better explained by a process other than CIDP. Patients frequently reported improvements after being treated with immunotherapy, even if the CIDP diagnosis was incorrect. CONCLUSIONS CIDP misdiagnosis is common. Over-reliance on subjective patient-reported perception of treatment benefit, liberal electrophysiologic interpretation of demyelination, and placing an overstated importance on mild or moderate cytoalbuminologic dissociation are common diagnostic errors. Utilization of clear and objective indicators of treatment efficacy might improve our ability to make informed treatment decisions.
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Affiliation(s)
- Jeffrey A Allen
- From the Department of Neurology (J.A.A.), University of Minnesota, Minneapolis; the Department of Neurology (J.A.A.), Northwestern University, Chicago, IL; and the Department of Neurology (R.A.L.), Cedars-Sinai Medical Center, Los Angeles, CA.
| | - Richard A Lewis
- From the Department of Neurology (J.A.A.), University of Minnesota, Minneapolis; the Department of Neurology (J.A.A.), Northwestern University, Chicago, IL; and the Department of Neurology (R.A.L.), Cedars-Sinai Medical Center, Los Angeles, CA
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