000281844 001__ 281844 000281844 005__ 20251117102906.0 000281844 0247_ $$2doi$$a10.1111/ene.70405 000281844 0247_ $$2pmid$$apmid:41174958 000281844 0247_ $$2pmc$$apmc:PMC12579276 000281844 0247_ $$2ISSN$$a1351-5101 000281844 0247_ $$2ISSN$$a1468-1331 000281844 037__ $$aDZNE-2025-01223 000281844 041__ $$aEnglish 000281844 082__ $$a610 000281844 1001_ $$00000-0002-1783-703X$$aBjelica, Bogdan$$b0 000281844 245__ $$aCompound Muscle Action Potential (CMAP) Amplitude Trajectories and Pattern in Adults with 5q-Spinal Muscular Atrophy Receiving Nusinersen Therapy: A Multicenter, Binational Observational Study. 000281844 260__ $$aOxford [u.a.]$$bWiley-Blackwell$$c2025 000281844 3367_ $$2DRIVER$$aarticle 000281844 3367_ $$2DataCite$$aOutput Types/Journal article 000281844 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1763371524_17165 000281844 3367_ $$2BibTeX$$aARTICLE 000281844 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000281844 3367_ $$00$$2EndNote$$aJournal Article 000281844 520__ $$aThis study aimed to evaluate changes in compound muscle action potential (CMAP) amplitude in adults with spinal muscular atrophy (SMA) undergoing nusinersen treatment and its association with motor function improvements.This multicenter study assessed median, ulnar, and peroneal CMAP over a follow-up of up to 4.5 years using linear mixed models. Motor function was measured using the Revised Upper Limb Module (RULM) and the Hammersmith Functional Motor Scale Expanded (HFMSE). Correlations between CMAP and motor function scores were analyzed.Seventy-eight patients (27 ambulatory, 51 non-ambulatory) were included. Baseline ulnar CMAP ≥ 2.0 mV distinguished SMA type 3 from type 2 with 91.3% sensitivity and 88.9% specificity (AUC 0.96, 95% CI 0.92-1.0), while baseline median nerve CMAP ≥ 6.5 mV showed 91.7% sensitivity and 77.3% specificity (AUC 0.84, 95% CI 0.72-0.96). No significant changes over time were observed in median, ulnar, and peroneal CMAP amplitudes (p > 0.05). CMAP trajectories did not differ between SMA types 2 and 3 (p > 0.05). No significant difference in the change in RULM or HFMSE at any time point was observed between SMA patients with baseline median nerve CMAP < 5 mV and those with CMAP of ≥ 5 mV (p > 0.05). No significant correlations were found between changes in median nerve CMAP and HFMSE or RULM (p > 0.05).CMAP amplitudes remained stable during nusinersen treatment, with no differences in trajectories between SMA types 2 and 3. Our findings suggest that while CMAP amplitude correlates with disease severity, it may not serve as a sensitive biomarker of treatment response in adult SMA patients. 000281844 536__ $$0G:(DE-HGF)POF4-353$$a353 - Clinical and Health Care Research (POF4-353)$$cPOF4-353$$fPOF IV$$x0 000281844 588__ $$aDataset connected to CrossRef, PubMed, , Journals: pub.dzne.de 000281844 650_7 $$2Other$$abiomarker 000281844 650_7 $$2Other$$acompound muscle action potential (CMAP) 000281844 650_7 $$2Other$$aneurophysiology 000281844 650_7 $$2Other$$anusinersen 000281844 650_7 $$2Other$$aspinal muscular atrophy (SMA) 000281844 650_7 $$05Z9SP3X666$$2NLM Chemicals$$anusinersen 000281844 650_7 $$2NLM Chemicals$$aOligonucleotides 000281844 650_2 $$2MeSH$$aHumans 000281844 650_2 $$2MeSH$$aFemale 000281844 650_2 $$2MeSH$$aOligonucleotides: therapeutic use 000281844 650_2 $$2MeSH$$aOligonucleotides: pharmacology 000281844 650_2 $$2MeSH$$aMale 000281844 650_2 $$2MeSH$$aAdult 000281844 650_2 $$2MeSH$$aAction Potentials: drug effects 000281844 650_2 $$2MeSH$$aAction Potentials: physiology 000281844 650_2 $$2MeSH$$aMiddle Aged 000281844 650_2 $$2MeSH$$aUlnar Nerve: physiopathology 000281844 650_2 $$2MeSH$$aMuscular Atrophy, Spinal: drug therapy 000281844 650_2 $$2MeSH$$aMuscular Atrophy, Spinal: physiopathology 000281844 650_2 $$2MeSH$$aYoung Adult 000281844 650_2 $$2MeSH$$aMedian Nerve: physiopathology 000281844 650_2 $$2MeSH$$aSpinal Muscular Atrophies of Childhood: drug therapy 000281844 650_2 $$2MeSH$$aSpinal Muscular Atrophies of Childhood: physiopathology 000281844 650_2 $$2MeSH$$aPeroneal Nerve: physiopathology 000281844 7001_ $$00000-0003-3035-4638$$aWohnrade, Camilla$$b1 000281844 7001_ $$00000-0002-6012-8423$$aOsmanovic, Alma$$b2 000281844 7001_ $$00000-0001-5621-4487$$aSchreiber-Katz, Olivia$$b3 000281844 7001_ $$aKoerner, Sonja$$b4 000281844 7001_ $$aKollewe, Katja$$b5 000281844 7001_ $$00000-0002-9806-0495$$aHaeckl, Sebastian$$b6 000281844 7001_ $$00000-0002-0941-6075$$aFreigang, Maren$$b7 000281844 7001_ $$00000-0002-2078-1997$$aCordts, Isabell$$b8 000281844 7001_ $$00009-0001-9459-4991$$aBecker, Benedikt$$b9 000281844 7001_ $$00009-0000-8347-0259$$aVogt, Charlotte$$b10 000281844 7001_ $$00009-0000-4166-2746$$aMuhandes, Mohamad Tareq$$b11 000281844 7001_ $$0P:(DE-2719)2811849$$aGünther, René$$b12 000281844 7001_ $$00000-0001-6116-6790$$aDeschauer, Marcus$$b13 000281844 7001_ $$aKoch, Jan C$$b14 000281844 7001_ $$00000-0001-9812-3794$$aTuerk, Matthias$$b15 000281844 7001_ $$00000-0002-2172-7386$$aRegensburger, Martin$$b16 000281844 7001_ $$aNeuwirth, Christoph$$b17 000281844 7001_ $$00000-0002-9783-8584$$aPetri, Susanne$$b18 000281844 773__ $$0PERI:(DE-600)2020241-6$$a10.1111/ene.70405$$gVol. 32, no. 11, p. e70405$$n11$$pe70405$$tEuropean journal of neurology$$v32$$x1351-5101$$y2025 000281844 8564_ $$uhttps://pub.dzne.de/record/281844/files/DZNE-2025-01223%20SUP.docx 000281844 8564_ $$uhttps://pub.dzne.de/record/281844/files/DZNE-2025-01223.pdf$$yOpenAccess 000281844 8564_ $$uhttps://pub.dzne.de/record/281844/files/DZNE-2025-01223%20SUP.doc 000281844 8564_ $$uhttps://pub.dzne.de/record/281844/files/DZNE-2025-01223%20SUP.odt 000281844 8564_ $$uhttps://pub.dzne.de/record/281844/files/DZNE-2025-01223%20SUP.pdf 000281844 8564_ $$uhttps://pub.dzne.de/record/281844/files/DZNE-2025-01223.pdf?subformat=pdfa$$xpdfa$$yOpenAccess 000281844 9101_ $$0I:(DE-588)1065079516$$60000-0002-0941-6075$$aDeutsches Zentrum für Neurodegenerative Erkrankungen$$b7$$kDZNE 000281844 9101_ $$0I:(DE-588)1065079516$$6P:(DE-2719)2811849$$aDeutsches Zentrum für Neurodegenerative Erkrankungen$$b12$$kDZNE 000281844 9131_ $$0G:(DE-HGF)POF4-353$$1G:(DE-HGF)POF4-350$$2G:(DE-HGF)POF4-300$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bGesundheit$$lNeurodegenerative Diseases$$vClinical and Health Care Research$$x0 000281844 9141_ $$y2025 000281844 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)1050$$2StatID$$aDBCoverage$$bBIOSIS Previews$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)1190$$2StatID$$aDBCoverage$$bBiological Abstracts$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)0600$$2StatID$$aDBCoverage$$bEbsco Academic Search$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bEUR J NEUROL : 2022$$d2024-12-12 000281844 915__ $$0LIC:(DE-HGF)CCBYNC4$$2HGFVOC$$aCreative Commons Attribution-NonCommercial CC BY-NC 4.0 000281844 915__ $$0StatID:(DE-HGF)3001$$2StatID$$aDEAL Wiley$$d2024-12-12$$wger 000281844 915__ $$0StatID:(DE-HGF)0113$$2StatID$$aWoS$$bScience Citation Index Expanded$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000281844 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bASC$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)9905$$2StatID$$aIF >= 5$$bEUR J NEUROL : 2022$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)0160$$2StatID$$aDBCoverage$$bEssential Science Indicators$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)1110$$2StatID$$aDBCoverage$$bCurrent Contents - Clinical Medicine$$d2024-12-12 000281844 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List$$d2024-12-12 000281844 9201_ $$0I:(DE-2719)1710012$$kAG Falkenburger$$lTranslational Parkinson Research$$x0 000281844 980__ $$ajournal 000281844 980__ $$aVDB 000281844 980__ $$aUNRESTRICTED 000281844 980__ $$aI:(DE-2719)1710012 000281844 9801_ $$aFullTexts