What is an anorectal manometry test?
This test evaluates the function of the muscles in your back passage and sensation of the rectum.
Once in the correct position, you will be asked to perform some very simple exercises that will challenge the muscles of your back passage (e.g. squeezing and coughing) which will enable us to assess muscular strength and co-ordination.
You may be referred for this test if you have been experiencing troublesome bowel problems such as constipation or faecal incontinence. These problems can often be caused by injuries, weakness to the anal canal muscles or problems with the wall of your back passage.
How does the anorectal manometry test work?
This test evaluates the function of the muscles in your back passage and sensation of the rectum. To do the anorectal manometry test, we insert a small flexible tube (only 3 mm thick) into the back passage with a small balloon attached. The tube will be connected to a machine that measures pressure throughout the test.
Once in the correct position, you will be asked to perform some very simple exercises that will challenge the muscles of your back passage (e.g. squeezing and coughing) which will enable us to assess muscular strength and co-ordination.
Following this, we will slowly inflate the balloon which is on the end of the tube to mimic filling of the bowel, asking you to tell us when you feel certain sensations. You may feel an urge to empty your bowel, but this sensation will pass immediately once the balloon is deflated. The test will take around 20 minutes to complete, and afterwards you are able to go ahead with your day normally.
How much does the anorectal manometry test cost?
If you are paying for this test yourself and not through private medical insurance, the cost will be £1,060.
How do you prepare for an anorectal manometry test?
You do not need any special preparation for your appointment. You may eat and drink as normal and continue with any normal medication.
What does the anorectal manometry test diagnose?
Anorectal manometry tests measure how strong the sphincter muscles are and whether they are relaxing and contracting as they should. The pressure sensors on the tube allow us to measure the strength of your muscles. The balloon helps us to see how sensitive your rectum is. This is a very useful test for people with faecal incontinence, constipation or prior to surgery in the pelvic floor region.
Following your test, your data will be analysed and results written up into a report. The report will be sent to both you and your referring consultant/doctor, who will explain the results to you in a follow-up consultation where you will be best advised on the next steps in treatment.
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