Normal Values for 3D High Resolution Anorectal Manometry in Children

Evaluation of Anorectal Area in Children Using 3D High Resolution Anorectal Manometry.

Anorectal 3D high resolution manometry (3D HRM) is the most advanced version of manometry equipment and has been recently introduced into clinical practice. It is the most precise method to assess the anal sphincter pressure function and may be crucial for planning and controlling surgical procedures of the anorectal area. Normal values in pediatric population have not been established.

The aim of this study is complex evaluation of anorectal function in children without symptoms from lower GI tract and establishment of normal values.

Inclusion Criteria:

• parental agreement
• age: 1 to 18 yr

Exclusion Criteria:

• parental disagreement
• children younger than 1 yr
• children after the surgery for anorectal malformations
• children with constipation during the last 10 months
• children with nonretentive fecal soiling
• children with inflammatory bowel diseases or any other type of large bowel inflammation
• children with anal fissure, anal varices, inflammation of the anorectal area or any other disease that may interfere with function of anorectum