Secondary peritonitis causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Shivani Chaparala M.B.B.S [2]

Overview

Secondary peritonitis has numerous causes. Nonbacterial causes of peritonitis include leakage of blood into the peritoneal cavity due to rupture of a tubal pregnancy, ovarian cyst, or aneurysmal vessel.

Causes

Common causes

Common causes of secondary peritonitis include:

• Perforated PUD
• Appendicitis
• Diverticulitis
• Acute cholecystitis
• Pancreatitis
• Post-surgical complications

Causes by Organ System

Cause of Peforation	Most likely organism
Nonperforation secondary peritonitis
Acute appendicitis	β-Hemolytic Streptococcus Klebsiella pneumoniae Clostridium perfringens Enterococcus
Loculated perforation of gastric ulcer	Escherichia coli Group D Streptococcus Bacillus species
Post operative gastric ulcer perforation	Staphylococcus epidermidis Proprianobacterium species Fungi
Loculated perforation of umbilical hernia	Staphylococcus aureus
Colonic ulcer	Enterobacter cloacae Clostridium species Enterococcus Bacteroides fragilis
Loculated perforation of colonic polypectomy	Escherichia coli α-Streptococcus Unidentified Gram-positive organism
Colonic ulcer	Escherichia coli
Infected pancreaticpseudocyst	Escherichia coli
Postoperative in general	Unidentified gram-negative coccobacillus Staphylococcus aureus
Perforation secondary peritonitis
Perforated gastric ulcer	Pseudomonas Enterococcus Candida
Perforated duodenal ulcer	Klebsiella pneumoniae Candida albicans
Perforated bowel	α-streptococcus Clostridium species Candida albicans
Perforated gallbladder	Escherichia coli Klebsielia pneumoniae