Anorectal Manometry Test
The Anorectal Manometry Test is a diagnostic procedure that evaluates the functioning of the muscles in the rectum and anus. It is particularly useful for assessing conditions related to bowel movement disorders, including chronic constipation or fecal incontinence. This test helps doctors measure the pressure, coordination, and reflexes of the anal sphincter and rectal muscles.
Who needs anorectal manometry?
For proper bowel movement, it is essential that there is a cooperation of particular muscles and nerves in the rectum and anal canal. Usually, when feces enter the rectum, the anal sphincter muscles contract to restrict stool passage until you can reach the restroom.
Fecal incontinence (stool leakage) can develop if these muscles are weak or do not contract on time. Similarly, pushing for a bowel movement relaxes the anal sphincter muscles, enabling feces to pass. Constipation may result if the muscles get tightened.
Anorectal manometry tests these functions and assists in diagnosing conditions like fecal incontinence and constipation. If you have persistent bowel difficulties, your doctor may advise you to undergo anorectal manometry.
Anorectal manometry is also done to assess following:
- Painful bowel movements.
- Anus or rectum malformations
- Injuries affecting adjacent nerves or muscles.
- Hirschsprung's disease (a congenital illness that affects the intestinal muscles).
- Irritable bowel syndrome, which causes both diarrhea and constipation.
- Rectal cancer
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Get A Second OpinionAnorectal Manometry Test Procedure
A tiny flexible tube with a balloon at the end is inserted through the anal opening into the rectum above the ring of muscles called the anal sphincter. The balloon at the end of the catheter is then inflated. This makes the muscles and nerves of the rectum and anus contract. The tube's end remains outside of the anus. It is linked to a machine that records rectum and anal sphincter contractions and relaxations.
Preparations Before the Test
- You may need to avoid eating or drinking for a few hours before the test.
- Laxatives or enemas may be prescribed to empty the bowels.
- Inform your doctor about any medications you are taking.
What Happens During Anorectal Manometry?
- The test is performed in a clinical setting.
- A small, flexible catheter with a balloon at its tip is gently inserted into the rectum.
- The catheter measures pressure and records muscle activity as you perform various tasks, like squeezing or pushing.
- The procedure is usually completed in 30–45 minutes and causes minimal discomfort.
What Happens After the Test?
- You can return to your normal activities immediately.
- Some patients may experience mild rectal discomfort, which typically resolves quickly.
This test will not usually affect any drugs or medications you are taking. Check with your doctor to see if it is OK to take your prescription medications on the morning of the exam.
Anal Manometry Test Results
Results are interpreted by a specialist who considers your medical history and other diagnostic findings. Follow-up treatments may include:
- The strength and coordination of the anal sphincter muscles.
- Reflexes necessary for normal bowel movements.
- The ability of the rectum to sense stool.
Anorectal Manometry Abnormal Results
Abnormal results may indicate:
- Chronic Constipation: Due to weakened muscle strength or poor coordination.
- Fecal Incontinence: Caused by impaired anal sphincter function.
- Hirschsprung’s Disease: Absence of nerve cells in a portion of the bowel.
- Pelvic Floor Disorders: Such as dyssynergia, where muscles fail to relax during defecation.
Results and follow-up
Results are interpreted by a specialist who considers your medical history and other diagnostic findings. Follow-up treatments may include:
- Pelvic Floor Therapy: To improve muscle function.
- Dietary Modifications: To manage bowel symptoms.
- Medications: For conditions like constipation or rectal pain.
- Surgical Intervention: For severe cases requiring correction of structural issues.
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Book an AppointmentAnorectal Manometry Treatment Options
Based on test results, treatments may include:
- Biofeedback therapy for muscle retraining.
- Medications to improve bowel movement frequency and consistency.
- Surgery for structural abnormalities or severe incontinence.
If you are having similar health issues and looking for expert solutions, then consult Medicover Hospitals. We have top Medical Gastroenterologists and Surgical Gastroenterologists who are highly expertise in managing all gastro conditions.
Related Tests: Amylase Test
In some cases, an amylase test may also be recommended to assess pancreatic function if digestive symptoms are present.
Regular follow-ups and a clear interpretation of the anorectal manometry test results are crucial for effective management of anorectal conditions.
