title: Precise Muscle Selection Using Dynamic Polyelectromyography for Treatment of Post-stroke Dystonia: A Case Report.
abstract: Dystonia has a wide range of causes, but treatment of dystonia is limited to minimizing the symptoms as there is yet no successful treatment for its cause. One of the optimal treatment methods for dystonia is chemodenervation using botulinum toxin type A (BTX-A), alcohol injection, etc., but its success depends on how precisely the dystonic muscle is selected. Here, we reported a successful experience in a 49-year-old post-stroke female patient who showed paroxysmal repetitive contractions involving the right leg, which may be of dystonic nature. BTX-A and alcohol were injected into the muscles which were identified by dynamic polyelectromyography. After injection, the dystonic muscle spasm, cramping pain, and the range of motion of the affected lower limb improved markedly, and she was able to walk independently indoors. In such a case, dynamic polyelectromyography may be a useful method for selecting the dominant dystonic muscles.
authors.affiliation: Department of Rehabilitation Medicine and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Tae Min
authors.identifier: 0000-0003-1391-7873
authors.initials: TM
authors.lastname: Jung
authors.affiliation: Department of Rehabilitation Medicine and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Ae Ryoung
authors.identifier: 0000-0003-3765-3024
authors.initials: AR
authors.lastname: Kim
authors.affiliation: Department of Neurology, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Yoonju
authors.identifier: 0000-0002-3609-0285
authors.initials: Y
authors.lastname: Lee
authors.affiliation: Department of Physical Medicine and Rehabilitation, Veterans Health Service Medical Center, Seoul, Korea.
authors.forename: Dae-Hyun
authors.identifier: 0000-0002-5065-4286
authors.initials: DH
authors.lastname: Kim
authors.affiliation: Department of Rehabilitation Medicine and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Deog Young
authors.identifier: 0000-0001-7622-6311
authors.initials: DY
authors.lastname: Kim
keywords: Botulinum toxins; Dystonia; Electromyography