Causes of Acute Appendicitis

Written by Ren Zheng Xin
Gastroenterology
Updated on September 01, 2024
00:00
00:00

The main causes of acute appendicitis are obstruction of the appendiceal lumen and concurrent infection. The appendiceal lumen is a narrow tube that communicates with the cecum at one end. Obstruction, such as a fecalith, can lead to increased pressure inside the lumen, disturbances in blood flow, damage to the mucosa, and secondary infection. It can also be caused by direct bacterial infection within the appendiceal lumen, leading to acute inflammation. Additionally, repeated diarrhea or constipation and other gastrointestinal dysfunctions can also cause circulation disturbances in the appendix, leading to bacterial invasion and acute inflammation.

Other Voices

doctor image
home-news-image
Written by Ren Zheng Xin
Gastroenterology
39sec home-news-image

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.

doctor image
home-news-image
Written by Ren Zheng Xin
Gastroenterology
44sec home-news-image

How is acute appendicitis treated?

Acute appendicitis treatment primarily involves surgical methods, where the inflamed, suppurative, or perforated appendix is excised during the procedure, and then the base of the appendix is sutured. Moreover, if there is suppuration, it is necessary to irrigate the peritoneal cavity to prevent intra-abdominal infections. After the surgery, fluid therapy should be administered based on the patient's condition. In cases of perforation or suppuration, antibiotics should be used post-operatively. For simple appendicitis, post-operative fluid replenishment is generally sufficient, and antibiotics are not required. (Please use medications under the guidance of a doctor.)

doctor image
home-news-image
Written by Ren Zheng Xin
Gastroenterology
42sec home-news-image

How to medicate for acute appendicitis

Acute appendicitis is commonly treated surgically in clinical settings. Medication for acute appendicitis should be used with caution according to indications; if the appendix is not purulent, it is appropriate to use anti-inflammatory drugs to control the infection and choose sensitive antibiotics, such as quinolones. If the appendix becomes purulent or perforates, timely surgical treatment should be administered to prevent further exacerbation of appendicitis. Before and after the surgery, it is important to monitor whether the patient's symptoms and signs have significantly worsened. (Medications should be taken under the guidance of a physician and based on actual conditions)

doctor image
home-news-image
Written by Ren Zheng Xin
Gastroenterology
42sec home-news-image

How is acute appendicitis diagnosed?

The definitive diagnosis of acute appendicitis is primarily through clinical physical examination and auxiliary tests. Based on typical symptoms of acute appendicitis, such as migratory right lower abdominal pain, vomiting, nausea, fever, and a few patients may have symptoms of constipation or diarrhea. There is obvious tenderness and rebound pain when pressing on the abdomen. Additionally, an abdominal ultrasound can indicate swelling of the appendix lumen and a significant increase in appendix size. These aspects can lead to a preliminary diagnosis, and once acute appendicitis is confirmed, surgical treatment should be carried out.

doctor image
home-news-image
Written by Ren Zheng Xin
Gastroenterology
40sec home-news-image

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.