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Related Experiment Videos

Biofeedback defaecation training for anismus.

B Lestàr1, F Penninckx, R Kerremans

  • 1Department of Abdominal Surgery, University Clinic Gasthuisberg, Katholieke Universiteit Leuven, Belgium.

International Journal of Colorectal Disease
|November 1, 1991
PubMed
Summary

This study introduces a novel biofeedback method for treating anismus and related pelvic floor disorders. The ambulatory approach integrates simulated defecation with rectal sensation, improving stool evacuation and correcting paradoxical sphincter contractions.

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Area of Science:

  • Gastroenterology
  • Pelvic Floor Disorders
  • Biofeedback Therapy

Background:

  • Anismus, characterized by paradoxical sphincter contraction, leads to prolonged straining during defecation.
  • Conditions include spastic pelvic floor syndrome and rectoanal dyssynergia.
  • Early intervention with biofeedback is crucial for effective treatment.

Purpose of the Study:

  • To evaluate an ambulatory biofeedback approach for anismus and related disorders.
  • To integrate simulated balloon defecation, manometry, and patient-visualized pressure recordings.
  • To correct paradoxical sphincter function and improve defecation dynamics.

Main Methods:

  • Ambulatory biofeedback integrating simulated balloon defecation (50 ml and individual rectal sensation volume).

Related Experiment Videos

  • Defaecometry and anal manometry used to assess rectal compliance and residual pressure.
  • Patients visualized their own anorectal pressure recordings for biofeedback correction.
  • Sixteen patients were treated and followed for at least 1 year.

    • Main Results:

    • Nine patients initially unable to evacuate a 50 ml bolus achieved it with increased volume.
    • Defecation became less laborious for seven patients.
    • Paradoxical contraction was immediately corrected in 7/16 patients.
    • Improved defecation of a 50 ml bolus observed in 11 patients after one session, sustained in 9/11 at 6 weeks.

    Conclusions:

    • The ambulatory biofeedback method is effective for anismus and related conditions.
    • It offers advantages over traditional sphincter training methods.
    • Early and integrated biofeedback can lead to sustained symptomatic improvement.