Which of the following statements about anorectal functional testing is/are true?
A. Anorectal manometry is often performed through open-tipped multilumen catheters perfused with fluid.
B. Anorectal manometry can differentiate between segmental and global defects of the anal sphincter in patients with incontinence.
C. Electromyography can demonstrate persistent contraction of the pubis rectalis muscle during defecation, which is diagnostic of paradoxical pelvic floor contraction.
D. Measurement of sensory thresholds may reveal insensitivity in patients with chronic constipation.
Answer:A
Which of the following statements about anorectal functional testing is/are true?
A. Anorectal manometry is often performed through open-tipped multilumen catheters perfused with fluid. B. Anorectal manometry can differentiate between segmental and global defects of the anal sphincter in patients with incontinence. C. Electromyography can demonstrate persistent contraction of the pubis rectalis muscle during defecation, which is diagnostic of paradoxical pelvic floor contraction. D. Measurement of sensory thresholds may reveal insensitivity in patients with chronic constipation.