The cause of acute appendicitis

Written by Ren Zheng Xin
Gastroenterology
Updated on September 02, 2024
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The etiology of acute appendicitis is directly related to obstruction and infection of the appendiceal lumen. The appendix, a narrow and elongated tube connected to the cecum, can develop increased luminal pressure due to obstruction, leading to disturbances in the blood supply to the appendiceal wall. This can easily cause damage to the mucosa and subsequent infection. Infection of the appendiceal lumen can directly cause acute appendicitis. Additionally, gastrointestinal dysfunction can also cause muscle and vascular spasms in the appendix leading to blood supply disturbances and the invasion of bacteria, resulting in acute inflammation. For acute appendicitis, surgical treatment should be administered immediately upon diagnosis.

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Written by Ren Zheng Xin
Gastroenterology
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Acute appendicitis complications

The main complications of acute appendicitis include: First, purulent peritonitis, due to the appendix becoming purulent and leading to perforation, pus flows into the abdominal cavity, causing diffuse peritonitis; Second, abdominal abscess, purulent appendicitis that is not treated surgically forms a capsule around the appendix, encapsulating it, and a lump can be felt on the abdominal surface; Third, internal-external fistula, if the abscess around the appendix is not drained in time, it can break through to the intestinal abdominal wall, forming a fistula.

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Written by Ren Zheng Xin
Gastroenterology
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The cause of acute appendicitis

The etiology of acute appendicitis is directly related to obstruction and infection of the appendiceal lumen. The appendix, a narrow and elongated tube connected to the cecum, can develop increased luminal pressure due to obstruction, leading to disturbances in the blood supply to the appendiceal wall. This can easily cause damage to the mucosa and subsequent infection. Infection of the appendiceal lumen can directly cause acute appendicitis. Additionally, gastrointestinal dysfunction can also cause muscle and vascular spasms in the appendix leading to blood supply disturbances and the invasion of bacteria, resulting in acute inflammation. For acute appendicitis, surgical treatment should be administered immediately upon diagnosis.

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Written by Ren Zheng Xin
Gastroenterology
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How is acute appendicitis treated?

The principle of treating acute appendicitis is to rehydrate and fight infection, complete related auxiliary examinations, and then carry out an emergency appendectomy. Acute appendicitis can be controlled by medication, but the effectiveness of medications is limited; most cases still require the removal of the appendix through surgery. Currently, laparoscopic appendectomy is an available option. This method is relatively more complex, but it allows for faster recovery and less trauma post-surgery, though it tends to be more expensive.

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Written by Ren Zheng Xin
Gastroenterology
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Anesthesia methods for acute appendicitis

The anesthesia method for acute appendicitis is related to the type of surgical treatment. If laparoscopic appendectomy is chosen, general anesthesia is usually required. If a traditional McBurney point incision is used for appendectomy, spinal anesthesia is primarily chosen. Additionally, after anesthesia, gastrointestinal function will be somewhat restricted. Until there is no gas or bowel movement from the rectum, patients should not eat after surgery. Only when the rectum starts to pass gas, indicating that gastrointestinal function is beginning to recover, can the patient begin to consume soft foods.

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Written by Ren Zheng Xin
Gastroenterology
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Does acute appendicitis cause vomiting?

Acute appendicitis can cause vomiting due to inflammation stimulating spasms in the gastrointestinal tract. In addition to vomiting, another typical symptom is abdominal pain, which starts around the navel and shifts to the lower right abdomen, and it is more commonly fixed in the lower right abdomen. The inflammation entering the bloodstream also causes fever, generally not exceeding 38.5°C. If there is significant pus formation or appendix perforation, it can cause high fever. The treatment primarily involves surgical removal of the appendix, with laparoscopic appendix removal being commonly used nowadays. This surgical method has less bleeding during the operation and a faster recovery afterward.