Acute Appendicitis Flashcards
Definition of Acute Appendicitis
Purulent process in the gut
Gold standard for diagnosis
US
3 Stages of Acute Appendicitis
- Acute Catarrhal appendicitis - inflammation of mucus layer inside the appendix
- Acute Phlegmonous appendicitis - inflammatory process w/0 boundaries (all layers are involved)
- Acute Gangrenous appendicitis - necrosis spotting
How long does it take for acute catarrhal appendicitis to turn into acute phlegmonous?
6-10 hours
Duration of acute gangrenous appendicitis
About 24 hours and more (very serious)
2 main syndromes of Acute Appendicitis
- Abdominal Syndrome with peritoneal signs
- Intoxication Syndrome
Clinical Picture of Abdominal Syndrome with peritoneal signs (Acute Appendicitis)
- Pain starts usually everywhere/upper stomach -> shifts to right lower quadrant
- Character of pain: involvement of peritonitis -> muscle guarding (+), Rebound tenderness (+)
Clinical Picture of Intoxication Syndrome (Acute Appendicitis)
- Fatigue
- Fever
- Tachycardia
- Hypotension
- Chills
- Pale skin
5 complications of Acute Appendicitis
- Appendicular infiltrate: divided into two: a. Resolution (DO NOT THINK!) b. Abscess (usually).
- Intrabdominal abscess: grows bigger -> rupture -> pus in the abdomen.
- Retroperitoneal abscess
- Diffuse peritonitis
- Pylephlebitis: purulent thrombophlebitis of portal vein (fatal/dangerous)
Pylephlebitis Complication
Liver damage
*Explanation: Thrombus/Emboli with microorganism travels to liver, infection spreads inside the liver ( a lot of small emboli) -> Increase abscess formation -> very difficult to treat -> sepsis.
Patients with these issues are difficult to diagnose with acute appendicitis.
- Children: difficult to communicate with
- Pregnant women: dislocation of appendix
- Elderly: are insensitive and there are no signs of peritonitis (check well!)
- Different locations of Appendix.
What are the different locations of appendix?
- Pelvic:
- Appear in pelvis
- Pain radiation is usually in same (normal) location
- Appendix is covered with other organs
- Exclude food poisoning: pts go to toilet often, unproductive events -> no stool; fever, chills, abdominal discomfort w/o signs of appendicitis.
- Physical examination - Sub-hepatic
- Hepatic (gets worse)
- Retroperitoneal:
- Exclude kidney disease (pyelonephritis) - Retrocecal
- Left sided appendicitis:
- Exclude sigmoiditis, pyelonephritis, diverticulitis & possibly adenocarcinoma of ileus (left level of ileus large intestine)
- Can be due to Right-sided heart (Kartagener Syndrome) - Post-ileal
- Pre-ileal
- Subcecal