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Intussusception is the most common cause of intestinal obstruction in children between ages five months and one year. Male babies are affected twice as often as female babies. Intussusception occurs when a portion of the intestine folds like a telescope, with one segment slipping inside another segment. This causes an obstruction, preventing the passage of food that is being digested through the intestine.
The walls of the two "telescoped" sections of intestine press on each other, causing irritation and swelling. Eventually, the blood supply to that area is cut off, which can cause damage to the intestine.
The cause of intussusception is not known. It may occur more frequently in people who have relatives who also had intussusception.
An increased incidence of developing intussusception is often seen in children:
Intussusception occurs in about one out of 2,500 infants before age one. Intussusception is rarely seen in newborn infants. Sixty percent of those who develop intussusception are between 2 months and 1 year of age. Although 80 percent of the children who develop the condition are less than 2 years old, intussusception can also occur in older children, teenagers, and adults.
Intussusception is a life-threatening illness. If left untreated, it can cause serious damage to the intestines, since their blood supply is cut off. Intestinal infection can occur, and the intestinal tissue can also die. Untreated intussusception can also cause internal bleeding and a severe abdominal infection called peritonitis.
The most common symptom of intussusception is sudden onset of intermittent pain in a previously well child. However, each child may experience symptoms differently. The pain may be mistaken for colic at first, and occurs at frequent intervals. Infants and children may strain, draw their knees up, act very irritable, and cry loudly. Your child may recover and become playful in-between bouts of pain, or may become tired and weak from crying.
Vomiting may also occur with intussusception, and it usually starts soon after the pain begins.
Your child may pass a normal stool, but the next stool may look bloody. Further, a red, mucus or jelly-like stool is usually seen with intussusception.
Symptoms of intussusception may resemble other conditions or medical problems. Please consult your child's physician for a diagnosis.
A physician will obtain a medical history and perform a physical examination of your child. Imaging studies are also done to examine the abdominal organs, and may include:
Specific treatment for intussusception will be determined by your child's physician based on the following:
In some instances, intussusception will fix itself while being diagnosed with a barium enema. However, if your child is very ill with an abdominal infection or other complications, your physician may not choose to perform this procedure.
Treatment may include:
An operation is necessary for intussusception that does not resolve with a barium enema, or for those who are too ill to have this diagnostic procedure. Under anesthesia, the surgeon will make an incision in the abdomen, locate the intussusception, and push the "telescoped" sections back into place. The intestine will be examined for damage, and, if any sections are not working correctly, they will be removed.
If there is damage to the intestine and the section removed is small, the two sections of healthy intestine will be sewn back together.
If the injured section of intestine is large, a significant amount of intestine may be removed. In this case, the parts of the intestine that remain after the damaged section is removed cannot be attached to each other surgically. A colostomy may be done so that the digestive process can continue. With a colostomy, the two remaining healthy ends of intestine are brought through openings in the abdomen. Stool will pass through the opening (called a stoma) and then into a collection bag. The colostomy may be temporary or permanent, depending on the amount of intestine that needed to be removed.
If not treated, intussusception is a life-threatening disorder. If treated within 24 hours, most babies recover completely.
The long-term outlook depends on the extent of intestinal damage (if any). Children with intestinal injury who had the damaged part removed may have long-term problems. When a large portion of the intestine is removed, the digestive process can be affected. Removing a large segment of the intestine can prevent a child from getting adequate nutrients and fluids. In this case, nutrition may need to be supplemented with long-term, high calorie IV (intravenous) solutions given through special IV catheters.
Intussusception recurs in up to 10 percent of children.
Consult your physician regarding the prognosis for your child.
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