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Related Experiment Videos

The balloon proctogram.

D M Preston, J E Lennard-Jones, B M Thomas

    The British Journal of Surgery
    |January 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Radiological studies using a barium-filled balloon reveal significant changes in anorectal angle and pelvic floor behavior for patients with defecation disorders. Surgical repair improved fecal incontinence by reducing the anorectal angle.

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    Area of Science:

    • Radiology
    • Gastroenterology
    • Pelvic Floor Disorders

    Background:

    • Defecation disorders, including fecal incontinence and slow-transit constipation, significantly impact quality of life.
    • Accurate radiological assessment of pelvic floor dynamics is crucial for understanding and treating these conditions.

    Purpose of the Study:

    • To evaluate the utility of a barium-filled balloon in simulating soft stool for radiological assessment of defecation disorders.
    • To analyze changes in the anorectal angle and pelvic floor behavior in patients with fecal incontinence and slow-transit constipation.

    Main Methods:

    • A barium-filled balloon was used to simulate stool during lateral radiography.
    • Measurements included pelvic floor level relative to the pubococcygeal line, anorectal angle, and anal sphincter behavior.

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  • The method was applied to patients with fecal incontinence and slow-transit constipation.

    • Main Results:

    • In 12 patients with fecal incontinence treated surgically, the anorectal angle decreased from 135° to 103°, and the anorectal junction rose by 1.5 cm post-surgery.
    • In 10 patients with slow-transit constipation, no pelvic descent or change in anorectal angle occurred during straining.
    • These patients were unable to expel the balloon, suggesting abnormal pelvic floor relaxation.

    Conclusions:

    • The barium-filled balloon is an effective tool for radiological evaluation of defecation disorders.
    • Surgical repair of postanal sphincter is associated with significant improvement in anorectal angle and function for fecal incontinence.
    • Slow-transit constipation may be characterized by a lack of pelvic floor relaxation and inability to expel simulated stool.