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Updated: Aug 15, 2026

08:51
Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch
Published on: August 24, 2019
Summary
Appendicitis with gangrene or perforation causes polymicrobial peritonitis due to aerobic and anaerobic bacteria. This understanding aids in diagnosing and treating appendicitis complications.
Area of Science:
- Microbiology
- Surgical Infections
- Pediatric Surgery
Background:
- Appendicitis is a common surgical emergency.
- Peritonitis is a serious complication of appendicitis.
- Bacterial flora in the peritoneal cavity plays a crucial role in appendicitis outcomes.
Purpose of the Study:
- To correlate the stage of appendicitis and clinical presentation with specific patterns of peritoneal bacterial flora.
- To investigate the microbial basis of peritonitis in appendicitis.
- To inform diagnostic and therapeutic strategies for appendicitis.
Main Methods:
- Aerobic and anaerobic cultures were performed on peritoneal fluid from 114 children undergoing appendectomy.
- Clinical data and appendicitis staging were collected.
- Bacterial flora patterns were analyzed in relation to appendicitis severity and complications.
Main Results:
- Appendiceal gangrene and perforation consistently resulted in polymicrobial peritonitis.
- A symbiotic relationship between aerobic and anaerobic bacteria was observed in these cases.
- Septic complications, including wound and intra-abdominal infections, were mixed infections.
Conclusions:
- The findings provide a clearer understanding of the polymicrobial nature of peritonitis in advanced appendicitis.
- This knowledge can refine diagnostic approaches for appendiceal gangrene and perforation.
- Rationales for treatment strategies in appendicitis can be improved based on identified bacterial patterns.
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Bacterial Flora of the Large Intestine
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The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
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The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
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Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
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Appendicitis
Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...

