what could cause a small bowel obstruction
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- Tumors, scar tissue (adhesions), or twisting or narrowing of the intestines can cause a bowel obstruction. These are called mechanical obstructions . In the small intestine, scar tissue is most often the cause.
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- An obstruction of the first segment of the small intestine (duodenum) may be caused by cancer of the pancreas, scarring from an ulcer, or Crohn disease. Rarely, a gallstone, a mass of undigested food, or a collection of parasitic worms may block other parts of the small intestine.he cause of the obstruction and the appearance of the intestine determine whether the surgeon can relieve the blockage without removing a segment of the intestine. Sometimes adhesions can be cut to release the trapped segment of intestine, although they tend to recur.
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- There are a variety of causes of intestinal obstruction: 1  strangulated hernia-part of your small intestine protrudes through your abdominal wall. 2  inflammatory disease like Crohn’s disease-swelling and scar tissue causes a narrowing of your intestine. 3  adhesions-scar tissue from a previous abdominal surgery.
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- Mechanical causes of intestinal obstruction may include: 1  Adhesions or scar tissue that forms after surgery. 2  Foreign bodies (objects that are swallowed and block the intestines). 3  Gallstones (rare). 4  Hernias. 5  Impacted stool. 6  Intussusception (telescoping of one segment of bowel into another).
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- Tumors, scar tissue (adhesions), or twisting or narrowing of the intestines can cause a bowel obstruction. These are called mechanical obstructions. In the small intestine, scar tissue is most often the cause.
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- Adhesive small bowel obstruction can occur in the absence of prior abdominal surgery. In one study of 34 patients without prior history of abdominal surgery, who underwent exploratory surgery for small bowel obstruction, 29 (85 percent) had adhesions as the cause of the obstruction [17].
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- Bowel Obstructions. A mechanical bowel obstruction can develop in either the small intestine or the large intestine (also called the colon). The condition partially or completely prevents the contents of the intestine from flowing normally through the bowels. The picture on the left shows a blockage in the small intestine that might develop, for example, as a result of scar tissue formation (adhesions). The picture on the right shows a partial blockage in the colon caused by a tumor (cancer).
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Bowel obstruction Bowel obstruction An obstruction can occur when there is no open passageway for food or digested food waste to move through the bowel, or intestine. It can occur anywhere in the small or large intestine, and there can be a partial or complete blockage.
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Overview Risk factors. Diseases and conditions that can increase your risk of intestinal obstruction include: Abdominal or pelvic surgery, which often causes adhesions — a common intestinal obstruction. Crohn's disease, which can cause the intestine's walls to thicken, narrowing the passageway. Cancer in your abdomen, especially if you've had surgery to remove an abdominal tumor or radiation therapy.
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Overview Abdominal or pelvic surgery, which often causes adhesions — a common intestinal obstruction. Crohn's disease, which can cause the intestine's walls to thicken, narrowing the passageway. Cancer in your abdomen, especially if you've had surgery to remove an abdominal tumor or radiation therapy.
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Intestinal Obstruction This may also occur with an obstruction of your large intestine, if it’s ongoing. A partial obstruction can result in diarrhea, while a complete obstruction can result in an inability to pass gas or stool. Intestinal obstruction may also cause serious infection and inflammation of your abdominal cavity, known as peritonitis.
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Fast facts Bowel obstruction occurs when you have a complete or partial blockage of your bowel. The blockage stops liquids, solids and gas passing through your small or large intestine (bowel). Bowel obstruction is a serious condition that requires prompt medical treatment.
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Bowel obstruction In large bowel obstruction, the pain is felt lower in the abdomen and the spasms last longer. Constipation occurs earlier and vomiting may be less prominent. Proximal obstruction of the large bowel may present as small bowel obstruction.
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Small-Bowel Obstruction Imaging A bowel larger than 3 cm in diameter is often associated with obstruction; gas and fluid are usually present in the distended small-bowel loops, and gas and fluid levels may be present at the same or different levels in the abdominal cavity
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Bowel Obstruction Symptoms of small-bowel obstruction can include: Cramping abdominal pain, generally coming in intense waves that strike at intervals of five to 15 minutes and sometimes center either on the navel or between the navel and rib cage (Pain that becomes constant may be a symptom of bowel strangulation)
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Fast facts The blockage prevents food, drink, gas and faeces from moving through your bowel. It can have many causes. Common signs of bowel obstruction are abdominal pain (tummy pain), a feeling of swelling and fullness in the abdomen, inability to pass faeces, and nausea and vomiting. Bowel obstruction is a medical emergency that requires immediate medical attention.
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2018 ICD-10-CM Diagnosis Code K56.69 An intestinal obstruction occurs when food or stool cannot move through the intestines. The obstruction can be complete or partial. There are many causes. The most common are adhesions, hernias, cancers, and certain medicines. A complete intestinal obstruction is a medical emergency.
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Gastrointestinal Complications (PDQÂ®)âPatient Version A bowel obstruction is a blockage of the small or large intestine by something other than fecal impaction. The most common cancers that cause bowel obstructions are cancers of the colon, stomach, and ovary. Assessment includes a physical exam and imaging tests.
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- Other possible causes of bowel obstruction include: 1  Impacted stools (poo) from severe constipation. 2  Diseases that affect the intestinal wall such as Crohn's disease or diverticular disease. 3  Gallstones. A swallowed item.  Intussusception, where part of the intestine folds in on 1  itself. Congenital malformation of the bowel.
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- Ileus, a malfunctioning of the bowel’s motility, is another type of obstruction. Causes of ileus include electrolyte imbalances, gastroenteritis (inflammation or infection of the stomach and intestines), appendicitis, surgical complications, and obstruction of the mesenteric artery, which supplies blood to the abdomen.
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- Small bowel obstruction remains an important cause of morbidity, accounting for up to 15% of surgical admissions for acute nontraumatic abdominal pain. Clinical evidence of complete small-bowel obstruction or complications such as strangulation necessitates emergent surgical management.
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Small-Bowel Obstruction Imaging Primary non-Hodgkin small-bowel lymphoma rarely causes obstruction; however, nodal lymphoma may arise in the mesentery and invade the small bowel by means of direct infiltration to cause small-bowel obstruction. A mesenteric mass invading, kinking, or compressing the small bowel may be seen on CT scans.
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Gastrointestinal Complications (PDQÂ®)âPatient Version 1 A bowel obstruction is a blockage of the small or large intestine by something other than fecal impaction. 2  The most common cancers that cause bowel obstructions are cancers of the colon, stomach, and ovary.  Assessment includes a physical exam and imaging tests.