Do we need an extra dimension? A pilot study on the use of three‐dimensional anorectal manometry in children with functional constipation

Recently, a new high‐definition (or three‐dimensional “3D”) high‐resolution anorectal manometry (3D‐ARM) catheter has been introduced. This catheter allows for a more detailed visualization of the anal canal. However, its clinical utility and tolerability in children with constipation are unknown. Our primary objective was to evaluate the agreement between findings from solid‐state high‐resolution anorectal manometry (HR‐ARM) and 3D‐ARM. Secondary objectives were to investigate if 3D‐ARM has additional value over HR‐ARM and to evaluate patient and provider experience.