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Location of the appendix in the digestive system 3D model of appendicitis. Acute appendicitis seems to be the result of a primary obstruction of the appendix. [20] [10] Once this obstruction occurs, the appendix becomes filled with mucus and swells. This continued production of mucus leads to increased pressures within the lumen and the walls ...
Appendicitis develops most commonly in the second trimester. [2] If appendicitis develops in a pregnant woman, an appendectomy is usually performed and should not harm the fetus. [16] The risk of premature delivery is about 10%. [17] The risk of fetal death in the perioperative period after an appendectomy for early acute appendicitis is 3 to 5%.
The sensitivity and specificity of MRI in diagnosing acute appendicitis are 94% and 96% respectively. [2] Laparoscopic surgery has also been used to diagnose the cause of IAIs when imaging is unhelpful. Besides, the laparoscopic surgery can also initiate treatment in the same setting. The accuracy is very high, in the range of 86 to 100%. [2]
Common causes of an acute abdomen include a gastrointestinal perforation, peptic ulcer disease, mesenteric ischemia, acute cholecystitis, appendicitis, diverticulitis, pancreatitis, and an abdominal hemorrhage. However, this is a non-exhaustative list and other less common causes may also lead to an acute abdomen. [3]
The main manifestations of peritonitis are acute abdominal pain, abdominal tenderness, abdominal guarding, rigidity, which are exacerbated by moving the peritoneum, e.g., coughing (forced cough may be used as a test), flexing one's hips, or eliciting the Blumberg's sign (meaning that pressing a hand on the abdomen elicits less pain than ...
The obturator sign, also called Cope's obturator test, is an indicator of irritation to the obturator internus muscle. [1] The technique for detecting the obturator sign, called the obturator test, is carried out on each leg in succession. The patient lies on her/his back with the hip and knee both flexed at ninety degrees.
Markle's sign, or jar tenderness, is a clinical sign in which pain in the right lower quadrant of the abdomen is elicited by the heel-drop test (dropping to the heels, from standing on the toes, with a jarring landing). It is found in patients with localised peritonitis due to acute appendicitis. [1]
Guarding is a characteristic finding in the physical examination for an abruptly painful abdomen (an acute abdomen) with inflammation of the inner abdominal (peritoneal) surface due, for example, to appendicitis or diverticulitis. The tensed muscles of the abdominal wall automatically go into spasm to keep the tender underlying tissues from ...