Precursors of acute appendicitis

Written by Ren Zheng Xin
Gastroenterology
Updated on September 02, 2024
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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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Symptoms of acute appendicitis

The typical symptoms of acute appendicitis include abdominal pain that starts around the upper abdomen or navel area, then localizes to the lower right abdomen. There are also manifestations of gastrointestinal spasms such as nausea and vomiting. Due to inflammation entering the bloodstream, there can be a systemic infection, often accompanied by fever, generally not exceeding 38 degrees Celsius. If there is an appendix perforation and peritonitis, the temperature can exceed 38 degrees. After the appendix becomes suppurative, symptoms can include abdominal muscle rigidity, dental pain, and rebound tenderness.

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Early symptoms of acute appendicitis

The symptoms of the early stage of acute appendicitis primarily include vague abdominal pain, initially across the abdomen, then transitioning around the belly button, and after several hours, shifting to the lower right abdomen where the pain becomes localized. The early symptoms of acute appendicitis are not typically distinctive, with the onset being quite sudden, accompanied by severe abdominal pain, vomiting, and fever. Based on these typical clinical manifestations, diagnosing acute appendicitis is not difficult. Clinically, the main treatment is the surgical removal of the appendix, with laparoscopic appendectomy being the more common practice nowadays. This method involves less bleeding during the operation and a quicker post-operative recovery.

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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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Gastroenterology
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acute appendicitis symptoms

The symptoms of acute appendicitis typically include abdominal pain at the onset of the condition, which initially occurs around the navel and then localizes to the lower right abdomen, as well as early nausea and vomiting caused by gastric spasms. Patients with more severe inflammation may also exhibit fever. If the inflammation spreads to the peritoneum, there will be tenderness at McBurney's point and rebound tenderness, along with tense abdominal muscles. Based on these symptoms, making a definitive diagnosis of acute appendicitis is not particularly difficult.

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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.