Does Body Position Influence Pressure Recording by High-resolution Manometry ?

The anorectal manometry is the gold standard in the evaluation of anorectal function. Several techniques are currently used (balloons, perfused catheters) and are always performed in the supine position. Few studies have reported the evaluation of sphincter function in the upright position, whereas symptoms of fecal incontinence occur in this position. Recently developed, high-resolution manometry, thanks to its many mechanical sensors, allows topographic analysis and evaluation of anorectal function more acurate. In addition, the rigid nature of the probe should allow stability measures / recording, which is not possible with probes perfused catheters example. We therefore propose to compare anal sphincter pressure in supine and standing, measured in high-resolution manometry.

Inclusion Criteria: Man or woman over the age of 18 years Patient referred for endoscopic ultrasound and anal manometry anorectal HR-3D which is an indication of fecal incontinence or dyschesia Exclusion Criteria: Patient age 18 Less Patient trust, guardianship, judicial protection No Written Consent Lack of social insurance History of anorectal surgery A presence of anal stenosis A setting evidence of anorectal lesion preventing the realization of the Screening Motor disability preventing the realization of the anorectal manometry 3D HR-standing situation