How is acute appendicitis diagnosed?

Written by Ren Zheng Xin
Gastroenterology
Updated on January 09, 2025
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The diagnosis of acute appendicitis is primarily based on clinical symptoms, signs, and auxiliary examinations. The patient describes abdominal pain accompanied by nausea and vomiting. During the physical examination, migratory pain in the lower right abdomen and significant rebound tenderness upon palpation are noted. Additionally, ultrasound diagnostics suggest swelling of the appendix lumen, all indicative of acute appendicitis. For acute appendicitis, once confirmed, surgery is generally required to remove the appendix, which is the only way to completely cure acute appendicitis.

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Written by Ren Zheng Xin
Gastroenterology
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Which is more serious, acute appendicitis or chronic appendicitis?

The symptoms of acute appendicitis are relatively more severe because acute suppurative appendicititis can cause perforation of the appendiceal lumen. After the perforation, pus can flow into the abdominal cavity causing diffuse peritonitis, leading to abdominal muscle tension, tenderness, and rebound pain. If not treated promptly, it can lead to multiple organ failure. Chronic appendicitis is mostly due to incomplete treatment of acute appendicitis, or chronic latent appendicitis. The symptoms of chronic appendicitis are sometimes mild and the physical signs are not definite. Surgical removal of the appendix should be the first choice for treating acute appendicitis.

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Written by Ren Zheng Xin
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Precursors of acute appendicitis

Acute appendicitis is acute inflammation of the appendix lumen, and currently, there are no particularly typical precursors, but the causes of acute appendicitis should be noted, which are related to obstruction and infection of the appendix cavity. If the appendix lumen is compressed for a long time, the accumulation of secretions can cause blood supply disorders in the distal appendix wall, directly causing damage to the appendix mucosa, and inducing infection that leads to appendicitis. Additionally, gastrointestinal dysfunctions such as diarrhea and constipation can also cause spasms of the appendix muscles and vessels, leading to blood supply disorders and mucosal damage, thereby causing acute appendicitis.

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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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Causes of Acute Appendicitis

The causes of acute appendicitis mainly include two types: one is the obstruction of the appendiceal lumen, and the other is infection within the appendiceal lumen. The appendix is a tube that communicates with the cecum. If it is blocked by fecoliths or fecal masses, it can lead to increased pressure inside the appendiceal lumen, damage to the mucosa, and bacterial invasion causing infection, which directly leads to acute inflammation. At the same time, gastrointestinal dysfunction can also cause spasm of appendix muscles and blood vessels, leading to blood supply disturbances. Irregular lifestyle habits, overeating, and engaging in vigorous activities after meals can all trigger acute appendicitis.

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

The diagnosis of acute appendicitis is primarily based on clinical symptoms, signs, and auxiliary examinations. The patient describes abdominal pain accompanied by nausea and vomiting. During the physical examination, migratory pain in the lower right abdomen and significant rebound tenderness upon palpation are noted. Additionally, ultrasound diagnostics suggest swelling of the appendix lumen, all indicative of acute appendicitis. For acute appendicitis, once confirmed, surgery is generally required to remove the appendix, which is the only way to completely cure acute appendicitis.