How is intestinal obstruction diagnosed?

Written by Li Jin Quan
General Surgery
Updated on September 04, 2024
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The main clinical manifestations of intestinal obstruction include abdominal pain, abdominal distension, vomiting, and cessation of gas and bowel movements from the anus. During the physical examination, tenderness in the abdomen can be observed, as well as hyperactive bowel sounds. Laboratory tests may reveal increased red and white blood cell counts, and electrolyte imbalances. Supplementary examinations, such as abdominal X-ray films, can show dilation of the intestinal tube, air and fluid accumulation within the abdominal cavity, and the presence of fluid-air levels. Abdominal ultrasound can also reveal air and fluid accumulation in the intestinal tube. Through the above examinations, intestinal obstruction can be diagnosed.

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Written by Zhang Peng
General Surgery
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Is intestinal obstruction dangerous?

Whether intestinal obstruction is dangerous depends on the actual individualized level. If the obstruction has progressed to symptoms of peritonitis, and if intestinal necrosis cannot be ruled out, not performing timely exploratory laparotomy surgery could potentially endanger the patient's life. However, if it is just a mild incomplete obstruction, with signs of passing gas and stools, and the patient’s abdominal symptoms are not pronounced, and related examinations are not concerning, then the risk to the patient might be relatively smaller. Therefore, in such cases, it is not possible to generalize, and decisions need to be made based on the individual situation.

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Written by Zhang Peng
General Surgery
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How to diagnose intestinal obstruction?

How to diagnose intestinal obstruction, which is a common acute abdomen condition in surgery. If symptoms such as cessation of passing gas or stools, abdominal pain, and vomiting occur, it may suggest the presence of an intestinal obstruction. The simplest diagnostic method for intestinal obstruction is to perform an upright abdominal plain film to assess the degree of obstruction, based on the presence or absence of fluid levels. Furthermore, identifying the fundamental cause of the obstruction is essential; this can be achieved through enhanced abdominal CT and colonoscopy to make a determination. An abdominal ultrasound can also be performed, which provides a better understanding of the condition of the intestinal obstruction. Using abdominal ultrasound, the presence of effusion can be detected, and by aspirating the effusion, its properties can be analyzed to determine if there is a condition such as bowel necrosis.

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Written by Xu Jun Hui
General Surgery
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Is intestinal obstruction dangerous?

Intestinal obstruction is a relatively dangerous and common emergency condition in general surgery. It is a disease caused by an obstruction to the passage of intestinal contents, categorized by its causes into mechanical intestinal obstruction, dynamic intestinal obstruction, and vascular intestinal obstruction, among which vascular intestinal obstruction is particularly dangerous. Based on blood circulation in the intestinal wall, it is divided into simple intestinal obstruction and strangulated intestinal obstruction, with strangulated intestinal obstruction being more dangerous as it can easily lead to ischemic necrosis of the intestines. According to the degree of obstruction, it is classified into partial intestinal obstruction and complete intestinal obstruction, with the latter being more dangerous. Intestinal obstruction, especially strangulated or vascular intestinal obstruction, can lead to obstructed blood circulation in the intestinal wall, resulting in ischemic necrosis and possibly perforation, making it a very dangerous condition.

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Written by Gao Tian
General Surgery
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Causes of intestinal obstruction

The causes of intestinal obstruction include factors external to the intestine and those originating from the intestine itself. External factors are mainly adhesions and bands of adhesions that cause intussusception or volvulus, thereby leading to intestinal obstruction. Congenital adhesive bands are common in children. Adhesions resulting from abdominal surgery or intra-abdominal inflammatory lesions are the most common causes of adult intestinal obstruction, although a minority of patients may have no history of abdominal surgery or inflammation. Additionally, incarcerated external or internal hernias may also cause intestinal obstruction. Furthermore, tumors external to the intestine or abdominal compression can also lead to obstruction.

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Written by Zhang Peng
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What can you eat with intestinal obstruction?

Intestinal obstruction, as the name implies, is when the contents within the intestines are blocked. Generally, patients are not allowed to eat, but this depends on the progress of the condition and whether there is a need for food or water intake. In some cases of incomplete obstruction, it is possible to consume a small amount of liquid or residue-free diet. However, for cases of obstruction with clear symptoms and severe conditions, patients are not permitted to eat. They might even require gastrointestinal decompression, which involves the insertion of a gastric tube for further treatment.