Staying in HRAM’s Way: Tweaking the London Classification for Disorders of Anorectal Function

Excerpt

High-resolution anorectal manometry (HRAM) is a technique wherein intraluminal pressure activity is measured using a series of closely spaced pressure sensors. HRAM was designed to provide fresh insights into anorectal function and offer a new perspective on the pathophysiologic mechanisms of disordered defecation. It is a more intuitive and relatively simpler investigation to perform than the conventional low resolution anorectal manometry (ARM) with its few, largely spaced intraluminal pressure sensors. Moreover, it facilitates a more precise correlation between anatomy and function, providing a detailed topographic and colorimetric mapping of the anorectal function without the need for pull-through maneuvers to properly position the manometry catheter [1]. …