Correlations between clinical motor scores and CMAP in patients with type 2 spinal muscular amyotrophy treated with nusinersen

IF 1.3 4区 医学 Q3 PEDIATRICS
M. Richard , R. Barrois , I. Desguerre , E. Deladrière , V. Leloup-Germa , C. Barnerias , C. Gitiaux
{"title":"Correlations between clinical motor scores and CMAP in patients with type 2 spinal muscular amyotrophy treated with nusinersen","authors":"M. Richard ,&nbsp;R. Barrois ,&nbsp;I. Desguerre ,&nbsp;E. Deladrière ,&nbsp;V. Leloup-Germa ,&nbsp;C. Barnerias ,&nbsp;C. Gitiaux","doi":"10.1016/j.arcped.2023.08.011","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><p><span>Spinal muscular atrophy (SMA) is a </span>neuromuscular disorder<span><span> characterized by the degeneration of the anterior horn cells of the spinal cord. </span>Nusinersen<span> for the treatment of SMA has been covered by public healthcare in France since May 2017.</span></span></p></div><div><h3>Objective</h3><p>Our aim was to investigate whether there is a correlation between clinical and compound motor action potential (CMAP) measurements in SMA patients treated with nusinersen after 3  years’ follow-up.</p></div><div><h3>Method</h3><p>Motor skills were evaluated regularly between M0 and M36 using the Motor Function Measure (MFM) score. CMAP measurements were collected regularly between M0 and M22.</p></div><div><h3>Results</h3><p><span>Data for 10 patients with SMA type 2 were collected and divided into two age groups (&lt; 5 years and &gt; 5 years). Motor function improved, but not significantly, regarding distal motor skills (D3) in both groups, and in axial and proximal motor function (D2) in the younger group. CMAP measurements improved in all patients. CMAP increased significantly for the </span>median nerve, and this improvement correlated significantly with global MFM and with axial and proximal tone (D2).</p></div><div><h3>Conclusion</h3><p>Our study shows gain in distal motor function with nusinersen, especially in younger patients with SMA type 2. These results encourage the screening of SMA patients and treatment as early as possible. CMAP measurements of the median nerve show clear improvement in patients treated with nusinersen and could be performed as routine follow-up.</p></div>","PeriodicalId":55477,"journal":{"name":"Archives De Pediatrie","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives De Pediatrie","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0929693X23001720","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PEDIATRICS","Score":null,"Total":0}
引用次数: 0

Abstract

Background

Spinal muscular atrophy (SMA) is a neuromuscular disorder characterized by the degeneration of the anterior horn cells of the spinal cord. Nusinersen for the treatment of SMA has been covered by public healthcare in France since May 2017.

Objective

Our aim was to investigate whether there is a correlation between clinical and compound motor action potential (CMAP) measurements in SMA patients treated with nusinersen after 3  years’ follow-up.

Method

Motor skills were evaluated regularly between M0 and M36 using the Motor Function Measure (MFM) score. CMAP measurements were collected regularly between M0 and M22.

Results

Data for 10 patients with SMA type 2 were collected and divided into two age groups (< 5 years and > 5 years). Motor function improved, but not significantly, regarding distal motor skills (D3) in both groups, and in axial and proximal motor function (D2) in the younger group. CMAP measurements improved in all patients. CMAP increased significantly for the median nerve, and this improvement correlated significantly with global MFM and with axial and proximal tone (D2).

Conclusion

Our study shows gain in distal motor function with nusinersen, especially in younger patients with SMA type 2. These results encourage the screening of SMA patients and treatment as early as possible. CMAP measurements of the median nerve show clear improvement in patients treated with nusinersen and could be performed as routine follow-up.

nusinersen治疗2型脊髓性肌萎缩症患者临床运动评分与CMAP的相关性
背景:脊髓性肌萎缩症(SMA)是一种以脊髓前角细胞变性为特征的神经肌肉疾病。自2017年5月以来,用于治疗SMA的Nusinersen已被法国公共医疗保健覆盖。目的:我们的目的是研究经nusinersen治疗的SMA患者的临床与复合运动动作电位(CMAP)测量是否存在相关性。方法:采用运动功能量表(MFM)对M0 ~ M36岁患者的运动技能进行定期评估。在M0和M22之间定期收集CMAP测量。结果:收集了10例2型SMA患者的数据,并将其分为< 5岁和> 5岁两个年龄组。两组的远端运动技能(D3)和年轻组的轴端和近端运动功能(D2)均有改善,但并不显著。所有患者的CMAP测量均有所改善。正中神经CMAP显著增加,这种改善与整体MFM和轴向和近端张力显著相关(D2)。结论:我们的研究显示nusinersen对远端运动功能的改善,特别是在年轻的2型SMA患者中。这些结果鼓励对SMA患者进行筛查并尽早进行治疗。正中神经的CMAP测量显示nusinersen治疗的患者有明显的改善,可以作为常规随访。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Archives De Pediatrie
Archives De Pediatrie 医学-小儿科
CiteScore
2.80
自引率
5.60%
发文量
106
审稿时长
24.1 weeks
期刊介绍: Archives de Pédiatrie publishes in English original Research papers, Review articles, Short communications, Practice guidelines, Editorials and Letters in all fields relevant to pediatrics. Eight issues of Archives de Pédiatrie are released annually, as well as supplementary and special editions to complete these regular issues. All manuscripts submitted to the journal are subjected to peer review by international experts, and must: Be written in excellent English, clear and easy to understand, precise and concise; Bring new, interesting, valid information - and improve clinical care or guide future research; Be solely the work of the author(s) stated; Not have been previously published elsewhere and not be under consideration by another journal; Be in accordance with the journal''s Guide for Authors'' instructions: manuscripts that fail to comply with these rules may be returned to the authors without being reviewed. Under no circumstances does the journal guarantee publication before the editorial board makes its final decision. Archives de Pédiatrie is the official publication of the French Society of Pediatrics.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信