Utility of an EMG mapping study in treating cervical dystonia

Jay A. Van Gerpen, Joseph Y. Matsumoto, J. Eric Ahlskog, Demetrius M. Maraganore, Philip G. McManis

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

Intramuscular injections of botulinum toxin are the cornerstone of treatment for cervical dystonia. Controversy exists regarding the necessity for EMG-guided injections. We compared the clinical examination of four movement disorder specialists to an electromyographic (EMG) mapping study. Clinical predictions of individual muscle involvement were only 59% sensitive and 75% specific. Muscle hypertrophy, shoulder elevation, and dominant head vector did not bolster clinical accuracy. An EMG mapping study facilitates identification of dystonic muscles in cervical dystonia, which may enhance botulinum toxin therapy. (C) 2000 John Wiley and Sons, Inc.

Original languageEnglish (US)
Pages (from-to)1752-1756
Number of pages5
JournalMuscle and Nerve
Volume23
Issue number11
DOIs
StatePublished - Nov 9 2000

Keywords

  • Botulinum toxin
  • Cervical dystonia
  • EMG
  • Movement disorder
  • Torticollis

ASJC Scopus subject areas

  • Physiology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Physiology (medical)

Fingerprint Dive into the research topics of 'Utility of an EMG mapping study in treating cervical dystonia'. Together they form a unique fingerprint.

  • Cite this

    Van Gerpen, J. A., Matsumoto, J. Y., Ahlskog, J. E., Maraganore, D. M., & McManis, P. G. (2000). Utility of an EMG mapping study in treating cervical dystonia. Muscle and Nerve, 23(11), 1752-1756. https://doi.org/10.1002/1097-4598(200011)23:11<1752::AID-MUS12>3.0.CO;2-U