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Anorectal manometry

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Title: Anorectal manometry  
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Subject: Defecography, Gastroscan, Colorectal surgery, Anismus, Pyloromyotomy
Collection: Colorectal Surgery, Digestive System Procedures
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Anorectal manometry

Anorectal manometry
OPS-301 code 1-315

Anorectal manometry is a technique used to measure contractility in the anus and rectum.[1] This technique uses a balloon in the rectum to distend the rectum and a pressure sensor at the internal anal sphincter to measure the presence or absence of the rectosphincteric reflex.

It may be used to assist in the diagnosis of Hirschprung disease[2] in which there is an absence of the rectosphincteric reflex that should relax the internal anal sphincter upon distension of the rectum.


  1. ^ Brookes D. Cash (15 September 2008). Curbside Consultation of the Colon: 49 Clinical Questions. SLACK Incorporated. pp. 67–.  
  2. ^ Eli Ehrenpreis (October 2003). Anal and rectal diseases explained. Remedica. pp. 15–.  

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