Anorectal manometry - diagnostic features


1. When appointed?

2. Contraindications

3. How to prepare?

anorectal manometry - a non-invasive diagnostic method, with which you can explore the anorectal muscle tone of the complex, as well as the coordination of the anal sphincter and rectal wall contraction.Methodology The study is based on the registration of pressure in the anus and rectum.Also anorectal manometry to evaluate neuroreflex activity muscle tissue around the anus, responsible for regulation of defecation.

procedure is as follows: the patient lies on his left side.The doctor inserts it into the anus probe (a small, flexible tube with a balloon catheter at the end) to a depth of about 10 cm. The other end of the probe connected to the instrument, which measures the pressure.To assess the reflex reaction rectal balloon is inflated at the end of the probe until the urge to defecate, or fullness.Further specialist asks the patient to squeeze the muscles of the anal sphincter with maximum force or to make emptyi

ng movement.At this time, recorded pressure readings sphincter muscle.

Also during the procedure, possible to hold two other studies:

  • test balloon expulsion from rectum - survey helps measure the time required for expulsion from the rectum to the balloon placed.During the test, the anus is introduced balloon filled with water.After that, the patient goes to the bathroom, and performs the act of defecation.If this process took a great amount of time, then this fact indicates the presence of dysfunction in the anorectal region and rectum.
  • anal sphincter electromyography - research method to help determine biological potentials of the anal sphincter muscles.The pulses are measured by means of electrodes which are installed in the anal area.Using electromyography can determine the degree of coordination between relaxation and contraction of the pelvic floor muscles and the anus.

entire survey process takes about half an hour.After diagnosing the patient can immediately return to normal life.

When he appointed?

Indications for anorectal manometry are:

  • Incontinence.
  • Constipation inorganic origin.
  • Functional anorectal pain.
  • irritable bowel syndrome.
  • dyssynergia pelvic floor muscles.
  • Megacolon (malformation characterized by an increase in the colon).
  • diverticular bowel disease.
  • Hirschsprung's disease.
  • Evaluation of the functional state of the colon before and after surgery.
  • resistance Identification of different drugs.
  • Evaluating the effectiveness of the therapy (eg, for the treatment of anal fissures).
  • Functional assessment and identification of internal and external anal sphincters.
  • dysmotility of the colon.

Contraindications Contraindications to anorectal manometry are not revealed - it is a safe procedure with a very low probability of pain.Complications after a survey found very rarely (may open bleeding or rupture of the intestinal wall to occur).

How to prepare?

Two hours before the forthcoming examination of patients is necessary to put one or two cleansing enemas.During this time, it is forbidden to use the food.If the subject has a latex allergy, he must inform the doctor or nurse before the study.

regularly use drugs are allowed to take, washing them down with a little water.This should be done two hours before anorectal manometry.

Children and adults with increased nervousness doctor prescribes sedatives.

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