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Anorectal Studies

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Anorectal Testing

Anorectal manometry, rectal sensation, defaecography, Sitz mark testing, pudental nerve testing and anorectal ultrasound

Anal manometry, rectal sensation, defaecography, pudental nerve testing and anorectal ultrasound are tests to utilize the study of a number different conditions, including constipation and faecal incontinence. They are also used to study more severe problems such as anal sphincter disruption and tumours of the anorectum.

Of all gastro-intestinal complaints amongst older adults, constipation is the most common. 60% of elderly out patients report frequent laxative use. Constipation is medically defined as a decrease in stool frequency less than three bowel movements per week.

Symptoms of constipation include;

  • Difficulty or straining when passing faeces
  • Hardness of stool
  • Feeling of incomplete bowel evacuation
  • Faecal soiling

Incontinence is less prevalent than constipation, affecting roughly 10% of the general population and is most common in patients over the age of 65. Incontinence occurs when there is uncontrollable evacuation of rectal contents.

The leading causes of faecal incontinence amongst the elderly patients include;

  • Muscle or nerve damage of the anal sphincter and puborectalis muscle
  • Decreased rectal sensation
  • Faecal impaction
  • Decrease in rectal reservoir capacity
  • Medications related incontinence

For more information on Anorectal Studies please contact Dr Michael Elliot.