Swash M, Snooks S J, Henry M M
J R Soc Med. 1985 Nov;78(11):906-11. doi: 10.1177/014107688507801105.
Denervation of pelvic floor sphincter muscles is a feature of pelvic floor disorders. When severe, it may be accompanied by stress incontinence of faeces, or of urine. The extent of chronic partial denervation of these pelvic floor muscles can be quantified by electromyography (EMG), and its cause identified by electrophysiological studies of the motor innervation of these striated muscles. Damage to this innervation is often initiated by childbirth, but appears to progress during a period of many years so that the functional disorder usually presents in middle life. Incontinence develops in some patients, but not in others. This can be predicted by the severity of the abnormalities found in EMG studies of the pelvic sphincter musculature and motor latency studies of its innervation. The results of such investigations in the six common types of pelvic floor disorder are presented. Recognition of the causative factors leading to damage to the innervation of the pelvic sphincter muscles implies new approaches to treatment and to prevention of pelvic floor disorders and incontinence.
盆底括约肌去神经支配是盆底疾病的一个特征。严重时，可能伴有大便或小便的压力性尿失禁。这些盆底肌肉慢性部分去神经支配的程度可通过肌电图（EMG）进行量化，其原因可通过对这些横纹肌运动神经支配的电生理研究来确定。这种神经支配的损伤通常由分娩引发，但似乎会在多年时间里逐渐发展，因此功能障碍通常在中年出现。一些患者会出现失禁，而另一些患者则不会。这可以通过盆底括约肌肌肉组织的肌电图研究和其神经支配的运动潜伏期研究中发现的异常严重程度来预测。本文展示了对六种常见盆底疾病类型进行此类调查的结果。认识到导致盆底括约肌肌肉神经支配受损的致病因素意味着治疗和预防盆底疾病及失禁的新方法。
