This overrides any myenteric plexus stimulation so that the sphincter relaxes.
Sphincter defects were seen in 40% of multiparae antenatally but only 4% developed new defects.
The sphincter can also be used to treat severe stress incontinence in women, particularly if previous surgery has failed.
This makes it possible for liquid stools to be eliminated involuntarily through an inhibited sphincter mechanism.
This propels the bolus to the stomach through the lower oesophageal sphincter.
In 20% of these patients incomplete voiding occurs due to dyssynergic contraction of the detrusor and sphincter muscles or due to mechanical outflow obstruction.
It includes 18 items covering independence in self-care, sphincter control, mobility, locomotion, communication and social cognition.
The 23 women who delivered by caesarean section were asymptomatic and showed no evidence of new sphincter defects.
