Sacral Nerve Stimulation for the Treatment of Fecal Incontinence

ABSTRACT

The use of sacral nerve stimulation as a treatment for fecal incontinence for intact but functionally deficient sphincter and pelvic floor musculature, as well as for some sphincter injuries, is an attractive concept that is currently undergoing clinical trials in the United States. Electrical stimulation of the peripheral nerve supply to the striated anal sphincter muscles at the level of the sacral spinal nerves exploits the accessibility of the most distal common location of the dual peripheral nerve supply to these muscles. While the mechanism of sacral nerve stimulation's salutary effect remains conjectural at present and is likely multifactorial, current experimental data point toward both an enhancement in striated muscular activity as well as neuromodulation of sacral reflexes that regulate rectal sensitivity and contractility.

KEYWORDS

Fecal incontinence - sacral nerve stimulation - anal sphincter muscles

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