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Les mouvements anormaux : mise au point. Rev Med Interne 2018; 39:641-649. [DOI: 10.1016/j.revmed.2017.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 08/25/2017] [Accepted: 09/18/2017] [Indexed: 11/18/2022]
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Bianchini S, Bellantoni G, Albergati A, Magrassi L. Postsurgical cortical myoclonus responsive to perampanel. Neurol Clin Pract 2018; 8:159-161. [PMID: 29708211 DOI: 10.1212/cpj.0000000000000440] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 11/28/2017] [Indexed: 11/15/2022]
Affiliation(s)
- Simonetta Bianchini
- Neurochirurgia, Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche (SB, LM), University of Pavia-Fondazione IRCCS Policlinico S. Matteo; S.C. Neurochirurgia (GB), Fondazione IRCCS Policlinico S. Matteo; Unità Operativa di Riabilitazione Neurologica (AA), Istituto di Cura "Città di Pavia"; and Istituto di Genetica Molecolare IGM-CNR (LM), Pavia, Italy
| | - Giuseppe Bellantoni
- Neurochirurgia, Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche (SB, LM), University of Pavia-Fondazione IRCCS Policlinico S. Matteo; S.C. Neurochirurgia (GB), Fondazione IRCCS Policlinico S. Matteo; Unità Operativa di Riabilitazione Neurologica (AA), Istituto di Cura "Città di Pavia"; and Istituto di Genetica Molecolare IGM-CNR (LM), Pavia, Italy
| | - Andrea Albergati
- Neurochirurgia, Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche (SB, LM), University of Pavia-Fondazione IRCCS Policlinico S. Matteo; S.C. Neurochirurgia (GB), Fondazione IRCCS Policlinico S. Matteo; Unità Operativa di Riabilitazione Neurologica (AA), Istituto di Cura "Città di Pavia"; and Istituto di Genetica Molecolare IGM-CNR (LM), Pavia, Italy
| | - Lorenzo Magrassi
- Neurochirurgia, Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche (SB, LM), University of Pavia-Fondazione IRCCS Policlinico S. Matteo; S.C. Neurochirurgia (GB), Fondazione IRCCS Policlinico S. Matteo; Unità Operativa di Riabilitazione Neurologica (AA), Istituto di Cura "Città di Pavia"; and Istituto di Genetica Molecolare IGM-CNR (LM), Pavia, Italy
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van Egmond ME, Eggink H, Kuiper A, Sival DA, Verschuuren-Bemelmans CC, Tijssen MAJ, de Koning TJ. Crossing barriers: a multidisciplinary approach to children and adults with young-onset movement disorders. JOURNAL OF CLINICAL MOVEMENT DISORDERS 2018; 5:3. [PMID: 29636982 PMCID: PMC5887190 DOI: 10.1186/s40734-018-0070-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 03/22/2018] [Indexed: 11/10/2022]
Abstract
Background Diagnosis of less common young-onset movement disorders is often challenging, requiring a broad spectrum of skills of clinicians regarding phenotyping, normal and abnormal development and the wide range of possible acquired and genetic etiologies. This complexity often leads to considerable diagnostic delays, paralleled by uncertainty for patients and their families. Therefore, we hypothesized that these patients might benefit from a multidisciplinary approach. We report on the first 100 young-onset movement disorders patients who visited our multidisciplinary outpatient clinic. Methods Clinical data were obtained from the medical records of patients with disease-onset before age 18 years. We investigated whether the multidisciplinary team, consisting of a movement disorder specialist, pediatric neurologist, pediatrician for inborn errors of metabolism and clinical geneticist, revised the movement disorder classification, etiological diagnosis, and/or treatment. Results The 100 referred patients (56 males) had a mean age of 12.5 ± 6.3 years and mean disease duration of 9.2 ± 6.3 years. Movement disorder classification was revised in 58/100 patients. Particularly dystonia and myoclonus were recognized frequently and supported by neurophysiological testing in 24/29 patients. Etiological diagnoses were made in 24/71 (34%) formerly undiagnosed patients, predominantly in the genetic domain. Treatment strategy was adjusted in 60 patients, of whom 43 (72%) reported a subjective positive effect. Conclusions This exploratory study demonstrates that a dedicated tertiary multidisciplinary approach to complex young-onset movement disorders may facilitate phenotyping and improve recognition of rare disorders, with a high diagnostic yield and minimal diagnostic delay. Future studies are needed to investigate the cost-benefit ratio of a multidisciplinary approach in comparison to regular subspecialty care.
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Affiliation(s)
- Martje E van Egmond
- 1Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.,Department of Neurology, Ommelander Ziekenhuis Groningen, Delfzijl and Winschoten, PO Box 30.001, 9700 RB Groningen, the Netherlands
| | - Hendriekje Eggink
- 1Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Anouk Kuiper
- 1Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Deborah A Sival
- 3Department of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | | | - Marina A J Tijssen
- 1Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Tom J de Koning
- 1Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.,3Department of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.,Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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Walker S, Simon NG. Differentiating fasciculations from myoclonus in motor neuron disease. Clin Neurophysiol Pract 2017; 3:22-23. [PMID: 30215002 PMCID: PMC6134193 DOI: 10.1016/j.cnp.2017.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 12/07/2017] [Accepted: 12/11/2017] [Indexed: 12/13/2022] Open
Affiliation(s)
- Susan Walker
- Department of Neurology, St Vincent's Hospital, Darlinghurst, NSW, Australia
| | - Neil G Simon
- St Vincent's Clinical School, University of New South Wales, Darlinghurst, NSW, Australia
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Kim JB, Jung JM, Park MH, Lee EJ, Kwon DY. Negative myoclonus induced by gabapentin and pregabalin: A case series and systematic literature review. J Neurol Sci 2017; 382:36-39. [PMID: 29111014 DOI: 10.1016/j.jns.2017.09.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/11/2017] [Accepted: 09/14/2017] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Negative myoclonus is a jerky, brief, and sudden interruption of voluntary muscle contraction. Although gabapentin and pregabalin have been reported to induce positive myoclonus in some patients with impaired renal function, there are only a few studies describing pregabalin- or gabapentin-induced negative myoclonus. This study reviewed patients who had developed pregabalin- or gabapentin-induced negative myoclonus. METHODS We collected the patients with negative myoclonus who were referred to the department of neurology at a university-affiliated hospital and selected pregabalin- or gabapentin-induced negative myoclonus. Then reviewed the literature with respect to pregabalin- or gabapentin-induced negative myoclonus. RESULTS A total of 77 patients with negative myoclonus were reviewed. Among them, 21 neuropathic pain patients who were prescribed and developed negative myoclonus induced by pregabalin (9 cases) or gabapentin (12 cases). To prove causality of the drug, probable and certain level of category according to the WHO-UMC criteria were recruited. Of the 21 patients, 3 had impaired renal function, while 18 had normal renal function. Review of the literature identified 7 further cases (6 had normal renal function) with pregabalin- or gabapentin-induced negative myoclonus. CONCLUSION Pregabalin- and gabapentin-induced negative myoclonus can develop even in patients with normal renal function. Physicians should keep in mind the possibility of patients developing negative myoclonus under treatment of pregabalin or gabapentin even in short period of time and with low dosage, and in the normal range of renal function. Further prospective study investigating incidence and risk factors is warranted.
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Affiliation(s)
- Jung Bin Kim
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Jin-Man Jung
- Department of Neurology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, South Korea
| | - Moon-Ho Park
- Department of Neurology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, South Korea
| | - Eun Ju Lee
- Medical Library, Korea University, Seoul, South Korea
| | - Do-Young Kwon
- Department of Neurology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, South Korea.
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Saneto RP. Epilepsy and Mitochondrial Dysfunction. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2017. [DOI: 10.1177/2326409817733012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Russell P. Saneto
- Division of Pediatric Neurology, Department of Neurology, University of Washington, Seattle, WA, USA
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Eberhardt O, Topka H. Myoclonic Disorders. Brain Sci 2017; 7:E103. [PMID: 28805718 PMCID: PMC5575623 DOI: 10.3390/brainsci7080103] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/06/2017] [Accepted: 08/08/2017] [Indexed: 01/17/2023] Open
Abstract
Few movement disorders seem to make a straightforward approach to diagnosis and treatment more difficult and frustrating than myoclonus, due to its plethora of causes and its variable classifications. Nevertheless, in recent years, exciting advances have been made in the elucidation of the pathophysiology and genetic basis of many disorders presenting with myoclonus. Here, we provide a review of all of the important types of myoclonus encountered in pediatric and adult neurology, with an emphasis on the recent developments that have led to a deeper understanding of this intriguing phenomenon. An up-to-date list of the genetic basis of all major myoclonic disorders is presented. Randomized studies are scarce in myoclonus therapy, but helpful pragmatic approaches at diagnosis as well as treatment have been recently suggested.
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Affiliation(s)
- Olaf Eberhardt
- Klinik für Neurologie, Klinikum Bogenhausen, Städt. Klinikum München GmbH, Englschalkinger Str. 77, 81925 München, Germany.
| | - Helge Topka
- Klinik für Neurologie, Klinikum Bogenhausen, Städt. Klinikum München GmbH, Englschalkinger Str. 77, 81925 München, Germany.
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Zutt R, Elting J, van der Hoeven J, Lange F, Tijssen M. Myoclonus subtypes in tertiary referral center. Cortical myoclonus and functional jerks are common. Clin Neurophysiol 2017; 128:253-259. [DOI: 10.1016/j.clinph.2016.10.093] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/23/2016] [Accepted: 10/23/2016] [Indexed: 12/29/2022]
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Zutt R, Drost G, Vos YJ, Elting JW, Miedema I, Tijssen MAJ, Brouwer OF, de Jong BM. Unusual Course of Lafora Disease. Epilepsia Open 2016; 1:136-139. [PMID: 29588937 PMCID: PMC5719837 DOI: 10.1002/epi4.12009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2016] [Indexed: 12/17/2022] Open
Abstract
A 42‐year‐old male was admitted for refractory status epilepticus. At the age of 25, he had been diagnosed with juvenile myoclonic epilepsy. He had a stable clinical course for over a decade until a recent deterioration of behavior and epilepsy. After exclusion of acquired disorders, diagnostic work‐up included application of next‐generation sequencing (NGS), with a gene panel targeting progressive myoclonic epilepsies. This resulted in the diagnosis Lafora disease resulting from compound heterozygous NHLRC1 pathogenic variants. Although these pathogenic variants may be associated with a variable phenotype, including both severe and mild clinical course, the clinical presentation of our patient at this age is very unusual for Lafora disease. Our case expands the phenotype spectrum of Lafora disease resulting from pathogenic NHLRC1 variants and illustrates the value of using NGS in clinical practice to lead to a rapid diagnosis and guide therapeutic options.
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Affiliation(s)
- Rodi Zutt
- Department of Neurology University Medical Centre Groningen University of Groningen Groningen the Netherlands
| | - Gea Drost
- Department of Neurology University Medical Centre Groningen University of Groningen Groningen the Netherlands
| | - Yvonne J Vos
- Department of Genetics University Medical Centre Groningen University of Groningen Groningen the Netherlands
| | - Jan Willem Elting
- Department of Neurology University Medical Centre Groningen University of Groningen Groningen the Netherlands
| | - Irene Miedema
- Department of Neurology University Medical Centre Groningen University of Groningen Groningen the Netherlands
| | - Marina A J Tijssen
- Department of Neurology University Medical Centre Groningen University of Groningen Groningen the Netherlands
| | - Oebele F Brouwer
- Department of Neurology University Medical Centre Groningen University of Groningen Groningen the Netherlands
| | - Bauke M de Jong
- Department of Neurology University Medical Centre Groningen University of Groningen Groningen the Netherlands
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