Diseases of the Colon & Rectum

, Volume 35, Issue 1, pp 8–11 | Cite as

Anorectal pressure gradient in patients with anal incontinence

  • Ole Ø. Rasmussen
  • Michael Sørensen
  • Tine Tetzschner
  • John Christiansen
Original Contributions


Anorectal pressures in patients with fecal incontinence have been investigated. With anal manometry, 34 percent of patients with fecal incontinence had maximal resting pressure and 39 percent had maximal squeeze pressure within the normal range. When a pressure gradient was calculated as the pressure difference between maximal resting pressure and rectal pressuring during filling of a rectal balloon, patients with fecal incontinence could be better distinguished from controls: 20 percent of patients with fecal incontinence had values within the normal range when the rectal pressure at the earliest defecation urge was used (P<0.05), and 12 percent had values within the normal range when the rectal pressure at maximal tolerable volume was used (P<0.01). Anorectal pressure gradient measurements seem to distinguish patients with fecal incontinence from controls better than maximal resting pressure or maximal squeeze pressure alone.

Key words

Anal incontinence Anal manometry Rectal compliance Anal physiology 


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Copyright information

© American Society of Colon & Rectal Surgeons 1992

Authors and Affiliations

  • Ole Ø. Rasmussen
    • 1
  • Michael Sørensen
    • 1
  • Tine Tetzschner
    • 1
  • John Christiansen
    • 1
  1. 1.Department of Surgery D, Glostrup HospitalUniversity of CopenhagenCopenhagenDenmark

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