Electromyography of the external sphincter Tomoyuki Uchiyama 1 , Ryuji Sakakibara 2 , Tatsuya Yamamoto 1 , Chiharu Yamaguchi 3 , Satoshi Kuwabara 1 1Department of neurology, Graduate School of Medicine, Chiba University 2Neurology Division, Department of Internal Medicine, Sakura Medical Center, Toho University 3Central Laboratory Unit, Chiba University Hospital Keyword: 内圧尿流検査 , 排尿筋圧 , 尿流率 , 膀胱機能 , 尿道機能 pp.777-783
Published Date 2010/7/15
DOI https://doi.org/10.11477/mf.1542102339
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Routine EMG performed as part of urodynamic studies usually uses a single channel for recording from the urethral or anal sphincter muscle. Urethral or anal sphincter EMG is used to examine the pattern of activity of extra-urethral or anal sphincter muscle under urine storage, voiding., and voluntary movement. In addition, EMG is also used to differentiate between normal, denervated, and reinervated muscle and possibly myopathic muscle. These EMG findings help to make a diagnosis of the disease and to assess the disease lesion, and may also be an indicator for the establishment of suitable treatment.

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