What Is a Rectal Dilator?

First, congenital malformations

Anorectal stenosis

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Refers to anal, anal canal and rectum due to congenital defects or acquired inflammation, injury, etc., resulting in shrinking intestinal diameter, narrowing of the lumen, obstruction of feces passage, difficult to discharge. Most patients have anal pain, narrow stools, and anal discharge

First, congenital malformations

It is generally believed that the anorectal insufficiency during the embryonic developmental stage, anorectal membrane development between the rectum and the anal canal is abnormal, the membrane is incompletely perforated or not disappeared after birth, anorectal stenosis or even atresia. It is generally called congenital anus or congenital atresia. After birth, anal atresia is not properly handled, often narrowed. There are also deformities of the zygomatic coccyx that oppress the intestinal cavity.

Second, inflammation

Such as

1. Rectal atresia

Anal development is normal but no stool after birth, with signs of intestinal obstruction. Digital rectal examination is obstructed and fluctuates. Inverted X-ray examination, if the rectum is membranous, rectal atresia, if there is no rectal deformity in the large rectum, sometimes with no anal deformity.

2.Anal atresia

The patient had no meconium excretion after birth, and he quickly developed symptoms such as vomiting, abdominal distension and other intestinal obstruction. After a local examination, the center of the perineum was flat and the anal area was covered with skin. In some cases, there is a small depression with obvious pigmentation and radiation wrinkles, which can stimulate the contraction of the ring muscles. When the baby is crying or holding his breath, there is a protrusion in the center of the perineum. Fingers placed in this area can have a sense of shock. The baby is placed on the hips with the head down and the anus in the anus as a drum sound.

1.Classify by narrow form

(1) Annular stenosis: The stenosis forms a circle with a longitudinal diameter less than 2 cm.

(2) Tubular stenosis: The stenosis forms a circle with a longitudinal diameter greater than 2 cm.

(3) Partial stenosis: the stenosis is superficial, or only involves a part of the anorectal rectum, which is petaloid or semicircular.

(4) Peripheral stenosis: The narrowed area occupies the entire anal canal or rectum.

2. Classification by stenosis

(1) Mild stenosis: poor bowel movements, deformed stools, and no obvious symptoms of intestinal obstruction. Digital diagnosis can pass through the stenosis.

(2) Moderate stenosis: difficulty in defecation, thin stool, symptoms of incomplete intestinal obstruction, and difficulty in passing through the stenosis through digital diagnosis.

(3) Severe stenosis: extremely difficult defecation or pseudo-incontinence, small and rare stools or watery stools, obvious symptoms of intestinal obstruction, and inability to pass through the stenosis through digital diagnosis.

In addition, it can be divided into benign and malignant stenosis according to the nature of stenosis.

General treatment: the index finger can pass smoothly, only constipation, difficulty in defecation, thinning of stool, without severe pain, you can first take intestinal laxative drugs, such as Ma Ren Runchang pills, laxative, lactulose and Du Mi Ke, etc .; at the same time with the external washing of Chinese medicine to soften loose knots, softening scars.

Anal expansion treatment: suitable for mild stenosis, is to expand the anus with fingers, anoscope and anus expanders with different diameters.

Surgical treatment: If defecation is extremely difficult, and there is pain in the anus, the index finger cannot pass through the anorectal rectum smoothly during the examination. Surgical treatment should be considered for this severe stenosis. Anal stenosis can be performed by cutting part of the external sphincter and fully expanding the anus with fingers, and then transplanting the skin around the anus to repair the anal canal. Rectal stenosis can be treated with suture method, the mucous membrane is slowly broken by gauze ligation, or the internal diameter of the rectum is enlarged by longitudinal incision and transverse suture expansion.