The objective of this assessment is to validate the level of anorectal functionality.
This assessment breaks down into several stages:
Insertion of the probe and measurement of anal pressure at rest, inserting the probe beyond the anal sphincter.
Repositioning the small balloon on the anal sphincter, pulling out the probe until it returns to rectal pressure.
Work on fast fibers, to measure maximum power and the ability to string together rapid contractions.
Work on slow fibers, to assess the ability to maintain a 50% contraction over time.
Anal reflex: swelling of the rectal probe, and verification of the functioning of the anal reflex. Recording of the volume that triggers the anal reflex.
Measure rectal volume, inflating the large balloon to the patient's maximum tolerance.