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Published on: March 27, 2026
[Primary peritonitis in previously healthy children]
1Hospital Nacional de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina. marcelojaviernavia@yahoo.com.ar
Insights
Primary peritonitis in healthy children presents acutely with fever and abdominal pain. Prompt surgery and antibiotics lead to rapid recovery, with a good prognosis.
Area of Science:
- Pediatric Surgery
- Infectious Diseases
- Gastroenterology
Background:
- Primary peritonitis is rare in children, especially those without underlying conditions like nephrosis or liver disease.
- This case report details six previously healthy children with primary peritonitis.
- Literature review on primary peritonitis in healthy children is included.
Observation:
- Six previously healthy children presented with acute primary peritonitis.
- Common symptoms included fever and abdominal pain within 24 hours of onset.
- Leukocytosis was noted in 66% of patients.
Findings:
- Diagnosis was confirmed intraoperatively via laparotomy, excluding intestinal perforation.
- Microorganisms identified in peritoneal fluid included Escherichia coli, Streptococcus pneumoniae, and Gram-negative bacteria.
- Rapid recovery and no postoperative complications were observed in all patients.
Implications:
- Primary peritonitis in healthy children mimics acute appendicitis, often requiring surgical diagnosis.
- Treatment involves antibiotics and prompt exploratory laparotomy with appendectomy.
- The prognosis for primary peritonitis in healthy children is favorable with timely intervention.
Introduction:
Primary peritonitis occurs rarely in childhood, affecting mainly children with nephrosis or liver disease and only rarely occurring in previously healthy children. The aim of this case report is to describe the clinical features and natural course of primary peritonitis in six previously healthy children and to review the literature on the topic.
Material And Method:
The clinical features and course of primary peritonitis in six previously healthy children are described. The diagnosis was made at laparotomy, which showed no intraabdominal findings, such as intestinal perforation.
Results:
Presentation was acute and all the patients presented within 24 h of onset of symptoms. The most common presenting features were fever (100 %) and abdominal pain (100 %). Leucocytosis (> 15,000/mm3) was observed in four patients (66 %). Microorganisms were isolated from peritoneal fluid in four patients (Escherichia coli in two, Streptococcus pneumoniae in one and Gram-negative bacteria in one). Recovery was rapid and no postoperative complications were observed.
Conclusion:
Primary peritonitis in patients without underlying causes is clinically indistinguishable from acute appendicitis and diagnosis is usually made at surgery. The hallmarks of therapy are antibiotics and prompt exploratory laparotomy with appendectomy and the prognosis is good.
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