ABSTRACT
Colorectal physiologic testing will allow, in about 50-75% of cases, stratification of potentially disabling and highly prevalent disorders such as fecal incontinence and chronic idiopathic constipation into diverse causative diagnoses with distinctive therapeutic approaches.1 The evaluation of these complex disorders will usually require a combination of studies and a multidisciplinary approach. Physiologic tests of practical value include anorectal manometry, colonic transit time study, videodefecography, electroneuromyography, and anal ultrasound.2
