ArticleMovement disorders : official journal of the Movement Disorder Society2022
Diagnostic and Prognostic Value of External Anal Sphincter EMG Patterns in Multiple System Atrophy.
Article in Movement disorders : official journal of the Movement Disorder Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 8 citations in OpenAlex.
- Applications of pelvic neurophysiology testing in clinical practice.Clinical neurophysiology practice · 2026Review
- [Neurological diagnosis of lower urinary tract dysfunction].Urologie (Heidelberg, Germany) · 2025Review
- External anal sphincter electromyography in multiple system atrophy: implications for diagnosis, clinical correlations, and novel insights into prognosis.Neural regeneration research · 2023Review
- The High Value of External Anal- and Urethral-Sphincter Electromyography in Differential Diagnosis with MSA-P, PD, and PSP.Annals of Indian Academy of NeurologyArticle
- External Anal- and Urethral-Sphincter Electromyography for Differentiating MSA-P, PD and PSP: Using a Needle to Sort the Haystack!Annals of Indian Academy of NeurologyArticle
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIt is debated whether external anal sphincter (EAS) electromyography can distinguish between multiple system atrophy (MSA) and Parkinson's disease (PD), whereas its usefulness for MSA prognosis is unknown.
objectivesWe explored the diagnostic and prognostic value and clinical correlations of EAS electromyography patterns in MSA.
methodsWe collected clinical data and EAS electromyography findings in 72 patients with MSA and 21 with PD.
resultsWe identified four EAS patterns. The normal pattern was frequently observed in PD and associated with prolonged survival when identified in MSA. Abnormal patterns were predominant in MSA. The most severe pattern was associated with the highest likelihood of MSA diagnosis and with the worst prognosis in the MSA cohort. MSA patients with EAS abnormalities often showed urogenital symptoms and fecal incontinence.
conclusionsThe increasing severity of EAS electromyography patterns paralleled diagnostic accuracy and survival in MSA, and correlated with prevalence of bladder and bowel symptoms. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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