Acute colonic pseudo-obstruction syndrome

　　Primary acute colonic pseudo-obstruction syndrome may be due to the interruption of the parasympathetic nerves from the 2nd, 3rd, and 4th sacral segments (S2-4), causing the left colon to become relaxed and without tension; secondary colonic pseudo-obstruction is due to stress on the body, such as injury, hormonal disorders in body fluids, elderly patients with poor intestinal tension and long-term bed rest, leading to decreased intestinal peristalsis, accumulation of intestinal fluid that cannot be pushed forward, resulting in continuous increase in intraintestinal pressure and progressive expansion of the intestinal lumen.

　　Acute colonic pseudo-obstruction syndrome often occurs in patients with long-standing illness and long-term bed rest, and the site of onset is usually in the ileocecal region or the right half of the colon. Acute colonic pseudo-obstruction syndrome generally does not have complications.

　　The main manifestation of acute colonic pseudo-obstruction syndrome is rapid progressive abdominal distension, but those with slow progression may have no abdominal symptoms, and nausea and vomiting may be absent. It often occurs in patients with long-standing illness and long-term bed rest, and the onset site is often at the ileocecal region or the right half of the colon.

　　According to the causes of acute colonic pseudo-obstruction syndrome, targeted preventive measures can be taken to effectively prevent and reduce the occurrence of intestinal obstruction.
　　1. Patients with abdominal wall hernia should be treated in a timely manner to avoid intestinal obstruction caused by incarcerated or strangulated hernia.
　　2. Strengthen health education and publicity, develop good health habits, prevent and treat enterobiasis, which is also a method to prevent acute colonic pseudo-obstruction syndrome.
　　3. Early detection and treatment of intestinal tumors.
　　4. Gastrointestinal decompression should be well performed in patients with abdominal surgery and peritonitis, and surgical operations should be gentle to minimize or avoid abdominal infection, and early activity should be encouraged after abdominal surgery.

　　The abdominal X-ray film of acute colonic pseudo-obstruction syndrome shows that the colon is distended and dilated, with more gas and less fluid, small and scattered or scattered in one place, without large-scale gas-liquid levels and overlapping arrangements in the form of a ladder, and the amount and size of the gas-liquid levels are not proportional to abdominal distension.

　　In addition to routine treatment, diet should also be paid attention to for patients with acute colonic pseudo-obstruction syndrome: patients should mainly eat light and nutritious food. It is recommended to eat less spicy food, as it may stimulate the intestines and be不利于 the recovery of the disease.

　　When treating acute colonic pseudo-obstruction syndrome, the first step should be to take gastrointestinal decompression, using the principles of negative pressure aspiration and siphonage, inserting a gastric tube into the mouth or nose, and aspirating the accumulated gas and liquid in the gastrointestinal tract through the gastric tube. Gastrointestinal decompression can reduce the pressure and distension of the gastrointestinal tract in patients with gastrointestinal obstruction, and prevent the contents of the gastrointestinal tract from continuing to leak into the abdominal cavity through the perforation in patients with gastrointestinal perforation. If the patient's abdomen is flat as usual after 12 hours without improvement, surgical gastrointestinal decompression should be performed, and if there is necrosis of the colon, a resection can be performed, or colonic decompression can be tried under colonoscopy.