NOMAD: Normal Values in Ano-rectal 3D High Resolution Manometry
Study Details
Study Description
Brief Summary
Ano-rectal manometry is indicative in patients with either fecal incontinence or constipation. Recently anorectal 3D- high resolution manometry has been developed. Pressure variations are measured circumferentially along the anal canal. It may allow a better understanding of anorectal disorders by displaying anal pressure asymmetry and it could be useful to assess the functional anatomy of the pelvic floor better than conventional manometry.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Other: ARM 1 Healthy Volunteers Ano-rectal 3D high resolution manometry, ano-rectal radial endsonography, dynamic ano-rectal endosonography |
Procedure: Anorectal 3D-high resolution manometry
Anorectal probe is used with a single-use protective sheath with an inflation balloon Control of balloon deflation Patient in left lateral decubitus position with hips flexed to 90° (this position is the most commonly use and the most convenient) Transanal insertion 2 minutes resting period: resting anal pressure will be evaluated the second minute of rest Sustained voluntary maximal squeeze for at least 30 seconds; the maneuver will be repeated once Valsalva Bear down maneuver; the maneuver will be repeated once Anorectal reflexes evaluation with 20-, 40- and 60-ml intra-rectal balloon inflation Probe removal
Procedure: Anorectal radial endosonography (rotative 360° probe)
Patient in left lateral decubitus position with hips flexed to 90° Transanal probe insertion Evaluation of internal and external anal sphincter integrity and puborectalis muscle at rest
Procedure: Dynamic anorectal endosonography (sagittal and radial)
Patient in left lateral decubitus position with hips flexed to 90° Rectum is filled with 50-ml water Probe is covered with a water-filled balloon to maintain the acoustic window for the ultrasound wave Transanal probe insertion Slow and manual rotation of the linear probe through 360° to identify the various layers constituting the anal wall (mucosa, IAS, EAS), the layer forming the rectal wall and the perirectal tissues (puborectalis muscle, bladder, and vagina or prostate) After the initial examination, the patient will be asked to make a defecation effort with the probe left in the same position
|
| Other: ARM 2: Patients with fecal incontinence Ano-rectal 3D high resolution manometry, ano-rectal radial endsonography, dynamic ano-rectal endosonography |
Procedure: Anorectal 3D-high resolution manometry
Anorectal probe is used with a single-use protective sheath with an inflation balloon Control of balloon deflation Patient in left lateral decubitus position with hips flexed to 90° (this position is the most commonly use and the most convenient) Transanal insertion 2 minutes resting period: resting anal pressure will be evaluated the second minute of rest Sustained voluntary maximal squeeze for at least 30 seconds; the maneuver will be repeated once Valsalva Bear down maneuver; the maneuver will be repeated once Anorectal reflexes evaluation with 20-, 40- and 60-ml intra-rectal balloon inflation Probe removal
Procedure: Anorectal radial endosonography (rotative 360° probe)
Patient in left lateral decubitus position with hips flexed to 90° Transanal probe insertion Evaluation of internal and external anal sphincter integrity and puborectalis muscle at rest
Procedure: Dynamic anorectal endosonography (sagittal and radial)
Patient in left lateral decubitus position with hips flexed to 90° Rectum is filled with 50-ml water Probe is covered with a water-filled balloon to maintain the acoustic window for the ultrasound wave Transanal probe insertion Slow and manual rotation of the linear probe through 360° to identify the various layers constituting the anal wall (mucosa, IAS, EAS), the layer forming the rectal wall and the perirectal tissues (puborectalis muscle, bladder, and vagina or prostate) After the initial examination, the patient will be asked to make a defecation effort with the probe left in the same position
|
| Other: ARM 3 Patients with constipation Ano-rectal 3D high resolution manometry, ano-rectal radial endsonography, dynamic ano-rectal endosonography |
Procedure: Anorectal 3D-high resolution manometry
Anorectal probe is used with a single-use protective sheath with an inflation balloon Control of balloon deflation Patient in left lateral decubitus position with hips flexed to 90° (this position is the most commonly use and the most convenient) Transanal insertion 2 minutes resting period: resting anal pressure will be evaluated the second minute of rest Sustained voluntary maximal squeeze for at least 30 seconds; the maneuver will be repeated once Valsalva Bear down maneuver; the maneuver will be repeated once Anorectal reflexes evaluation with 20-, 40- and 60-ml intra-rectal balloon inflation Probe removal
Procedure: Anorectal radial endosonography (rotative 360° probe)
Patient in left lateral decubitus position with hips flexed to 90° Transanal probe insertion Evaluation of internal and external anal sphincter integrity and puborectalis muscle at rest
Procedure: Dynamic anorectal endosonography (sagittal and radial)
Patient in left lateral decubitus position with hips flexed to 90° Rectum is filled with 50-ml water Probe is covered with a water-filled balloon to maintain the acoustic window for the ultrasound wave Transanal probe insertion Slow and manual rotation of the linear probe through 360° to identify the various layers constituting the anal wall (mucosa, IAS, EAS), the layer forming the rectal wall and the perirectal tissues (puborectalis muscle, bladder, and vagina or prostate) After the initial examination, the patient will be asked to make a defecation effort with the probe left in the same position
|
Outcome Measures
Primary Outcome Measures
- Anal pressure pattern at rest, during voluntary maximal squeezing and bear down Anal pressure pattern at rest, during voluntary maximal squeezing and bear down [during procedure]
Following parameters will be measured at the level of anal sphincter: Minimal pressure (amplitude and location) Maximal pressure (amplitude and location) Mean pressure Asymmetry
Secondary Outcome Measures
- presence of ano-rectal reflex. [during procedure]
- Ano-rectal radial endosonography [During procedure]
Evaluation of internal and external anal sphincter integrity and puborectalis muscle at rest
- Dynamic ano-rectal endoconography [During procedure]
presence of pelvic floor disorder (rectocele, enterocele)
Eligibility Criteria
Criteria
Arm 1: 50 healthy volunteers Inclusions will be stratified on gender (10 males, 40 females), age (15 subjects under 40 years; 20 subjects between 40 and 60 years; and 15 subjects >60 years) and parous (10 nullipara and 30 parous women).
Inclusion criteria:
Subject older than 18 years Absence of anorectal symptoms (no constipation, no fecal incontinence) Absence of pelvic floor disorders Vaizey score = 0 Kess score < 9 Subject with health insurance Written informed consent Non inclusion criteria: Patient younger than 18 years Pregnancy Incapability to give consent No written informed consent Participation to another study at the same time Previous ano-rectal surgery Pelvic radiotherapy Neurological disorder Diabetes mellitus
Arm 2: 50 patients with fecal incontinence
Inclusion criteria:
Subject older than 18 years Patient referred for anorectal manometry and/or ultrasound examination Fecal incontinence as main complain Vaizey score > 6 Kess score < 9 Subject with health insurance Written informed consent
Non inclusion criteria:
Patient younger than 18 years Pregnancy Incapability to give consent No written informed consent Participation to another study at the same time Rectal tumor Rectal stenosis Ileo-anal or ileo-rectal anastomosis Anal fissure Anal fistula Arm 3: 50 patients with constipation
Inclusion criteria:
Subject older than 18 years Patient referred for anorectal manometry and/or ultrasound examination Constipation as main complain Feeling of incomplete evacuation and/or manual disimpaction defined as needing to press in or around the anus to aid defecation Vaizey score < 6 Kess score < 9 Subject with health insurance Written informed consent
Non inclusion criteria:
Patient younger than 18 years Pregnancy Incapability to give consent No written informed consent Participation to another study at the same time Rectal tumor Rectal stenosis Ileo-anal or ileo-rectal anastomosis Anal fissure Anal fistula
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Unité d'Exploration Fonctionnelle Digestive Hôpital Edouard Herriot | Lyon | France | 69437 |
Sponsors and Collaborators
- Hospices Civils de Lyon
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 2012.729