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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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.

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Written by Ren Zheng Xin
Gastroenterology
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The Difference Between Acute and Chronic Appendicitis

The differences between acute appendicitis and chronic appendicitis mainly lie in the onset of the condition, physical signs, and laboratory tests. First, regarding the onset of the condition, acute appendicitis occurs suddenly and can involve abrupt abdominal pain, whereas chronic appendicitis often manifests as fixed tenderness in the lower right abdomen and the symptoms are not particularly typical. In terms of physical signs, acute appendicitis presents with migratory pain in the lower right abdomen, while chronic appendicitis generally does not involve rebound pain. Thirdly, concerning auxiliary examinations, acute appendicitis shows a significant increase in the white blood cell count during an attack, whereas in chronic appendicitis, the white blood cell count may appear normal.

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Written by Ren Zheng Xin
Gastroenterology
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Typical symptoms of acute appendicitis

The typical symptoms of acute appendicitis include abdominal pain, which starts in the upper abdomen or around the navel and, after several hours, shifts and localizes to the lower right abdomen. Additionally, reflexive gastric spasms may cause nausea and vomiting. Due to the inflammation, the body may develop a fever, generally not exceeding 38 degrees Celsius. If the inflammation affects the parietal peritoneum, it can cause tenderness, rebound pain, and abdominal muscle rigidity. These are the typical symptoms, and a preliminary diagnosis can usually be made based on them. Most cases require an appendectomy.

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Written by Ren Zheng Xin
Gastroenterology
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Acute appendicitis nursing care

The nursing care for acute appendicitis includes preoperative care and postoperative care. Before surgery and on the day of surgery, fasting is required; the patient should not eat anything. At the same time, it is important to soothe the patient's emotions. If the pain is very severe, sedative analgesics can be used. After the surgery, dietary care should be intensified. On the first day after the surgery, a liquid diet should be administered. After bowel gas is passed, a normal diet can be resumed on the third to fourth day. It is important to monitor vital signs and the condition of the surgical incision to prevent infection. The patient can engage in activities out of bed 24 hours after surgery. Elderly patients should be assisted in expectoration to prevent dependent pneumonia.

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Written by Ren Zheng Xin
Gastroenterology
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The etiology of acute appendicitis

The main cause of acute appendicitis is due to the narrowing of the appendiceal lumen, which can easily lead to the obstruction of food residues and fecal masses. Following the obstruction, mucosal damage occurs, which leads to secondary infections. Additionally, neglecting regular living habits, such as overeating, excessive fatigue, and frequent heavy drinking can exacerbate or trigger acute appendicitis. Therefore, maintaining regular living habits in daily life, such as having meals at fixed times, reasonable rest and work schedules, balancing work and leisure, and engaging in appropriate outdoor activities, can play a positive role in preventing acute appendicitis.