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Severity of childhood bacterial meningitis and duration of illness before diagnosis

T Kilpi1, M Anttila, M J Kallio

  • 1Children's Hospital, University of Helsinki, Finland.

Lancet (London, England)
|August 17, 1991
PubMed

Insights

Rapid diagnosis of childhood bacterial meningitis (BM) is crucial. However, a longer illness duration before hospital admission correlated with better clinical outcomes in children, suggesting insidious disease patterns can cause unavoidable diagnostic delays.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Clinical Medicine

Background:

  • Rapid diagnosis of childhood bacterial meningitis (BM) is considered essential for favorable outcomes.
  • The relationship between illness duration before hospital admission and disease severity in pediatric BM requires further investigation.

Purpose of the Study:

  • To investigate the association between the duration of illness before hospital admission and the clinical severity of childhood bacterial meningitis.

Main Methods:

  • A prospective study collected data from 286 children with culture-positive BM across 18 Finnish pediatric hospitals (1984-1989).
  • Cases were categorized into short-history (≤24h), intermediate-history (>24h to ≤48h), and long-history (>48h) groups.
  • Clinical severity was assessed using variables including consciousness level, seizures, CSF protein, Gram stain, blood culture, CRP, and urine sodium.

Main Results:

  • Children with shorter illness durations (≤48h) exhibited significantly worse clinical conditions compared to those with longer histories (>48h).
  • Worse outcomes were observed in terms of consciousness, seizures, CSF protein, positive CSF Gram stain, positive blood culture (H. influenzae), serum CRP, and urine sodium.
  • These differences were independent of the causative organism, sex, age, or prior antimicrobial use.

Conclusions:

  • A longer duration of illness before hospital admission in pediatric bacterial meningitis is paradoxically associated with better clinical condition.
  • Insidious onset of BM can lead to unavoidable diagnostic delays, potentially having medicolegal implications.

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