title: The presence of spontaneous EMG activity in sternocleidomastoid is associated with ventilatory dysfunction in ALS.
abstract: We investigated electromyography (EMG) of the sternocleidomastoid (SCM) in 128 patients with amyotrophic lateral sclerosis (ALS) including correlation with forced vital capacity (FVC) and ALS Functional Rating Scale scores. The presence of fibrillation potentials and positive sharp waves in the SCM was significantly more frequently observed in patients with an FVC <80% (31/49, 63%) than in patients with an FVC≥80% (34/79, 43%). This study suggests that the SCM could be concomitantly involved with primary respiratory muscles in ALS. This is of value since needle EMG is a less invasive procedure in SCM than in the diaphragm or intercostal muscles.
authors.affiliation: Department of Neurology, Peking University Third Hospital, 49, North Garden Road, Beijing 100191, Haidian District, China.
authors.forename: Huagang
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Neurology, Peking University Third Hospital, 49, North Garden Road, Beijing 100191, Haidian District, China.
authors.forename: Shuo
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Department of Neurology, Peking University Third Hospital, 49, North Garden Road, Beijing 100191, Haidian District, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Zhang
authors.affiliation: Department of Neurology, Peking University Third Hospital, 49, North Garden Road, Beijing 100191, Haidian District, China. Electronic address: dsfan2010@aliyun.com.
authors.forename: Dongsheng
authors.initials: D
authors.lastname: Fan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000690:Amyotrophic Lateral Sclerosis / Q000150:complications / Q000503:physiopathology*; D004576:Electromyography; D005260:Female; D006801:Humans; D035002:Lower Extremity / Q000294:innervation / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009334:Neck Muscles / Q000294:innervation / Q000503:physiopathology*; D012120:Respiration Disorders / Q000209:etiology / Q000503:physiopathology*; D012129:Respiratory Function Tests; D012132:Respiratory Muscles / Q000294:innervation / Q000503:physiopathology*; D034941:Upper Extremity / Q000294:innervation / Q000503:physiopathology; D014797:Vital Capacity
keywords: Capacité vitale forcée; Dysfonction ventilatoire; Fibrillation; Fibrillation potentials; Forced vital capacity; Positive sharp waves; Potentiels positifs à front raide; Sterno-cléido-mastoïdien; Sternocleidomastoid; Ventilation dysfunction