Signs and symptoms indicative of community-acquired pneumonia in infants under six months

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Published on: March 6, 2019

Maria de Fátima Bazhuni Pombo March1, Clemax Couto Sant'Anna

  • 1Martagão Gesteira Pediatric Institute, Dept. of Pediatrics, Medical School, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.

The Brazilian Journal of Infectious Diseases : an Official Publication of the Brazilian Society of Infectious Diseases
|August 30, 2005
PubMed

Insights

Clinical signs and symptoms do not reliably distinguish bacterial from viral pneumonia in young children. The findings support Brazil's national program for early pneumonia diagnosis, regardless of the cause.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Respiratory Medicine

Background:

  • Pneumonia is a leading cause of mortality in children under five.
  • Differentiating between bacterial and viral pneumonia is crucial for appropriate treatment.
  • The Brazilian National Control Program for Acute Respiratory Infections (ARI) aims for early pneumonia diagnosis.

Purpose of the Study:

  • To evaluate clinical signs and symptoms for predicting bacterial versus viral pneumonia in infants.
  • To assess the efficacy of these indicators in the context of the Brazilian ARI program.

Main Methods:

  • An observational prospective study involving 76 infants (birth to 6 months) with pneumonia.
  • Patients were categorized into bacterial (n=47) or viral (n=29) pneumonia based on radiological findings.
  • Frequencies, sensitivities, and specificities of various clinical signs and symptoms were analyzed.

Main Results:

  • No specific clinical signs or symptoms reliably differentiated bacterial from viral pneumonia.
  • Fever, hypoactivity, and prostration showed varying sensitivities and specificities in both groups.
  • Respiratory findings like cough, respiratory rate, auscultation, and chest indrawing also lacked distinct predictive value for etiology.

Conclusions:

  • Clinical presentation alone is insufficient to distinguish bacterial from viral pneumonia in infants.
  • The findings support the Brazilian ARI program's approach to early pneumonia diagnosis, irrespective of the causative agent.
  • This reinforces the program's adequacy in managing pediatric pneumonia effectively.
Abstract

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