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Published on: November 5, 2019
[First and second line antibiotic therapy for bacterial meningitis in infants and children]
J Sarlangue1, C Castella, P Lehours
1Département de pédiatrie médicale, hôpital des Enfants, CHU de Bordeaux, place A.-Raba-Léon, 33076 Bordeaux cedex, France. jean.sarlangue@chu-bordeaux.fr
Abstract:
The potential severity of meningitis in infants and children requires an optimized initial empirical therapy, mainly based on direct cerebro spinal fluid (CSF) examination, and rapid therapeutic adaptation according to bacterial identification and susceptibility. Combination treatment including cefotaxim (300 mg/kg per day) or ceftriaxone (100mg/kg per day) and vancomycine (60 mg/kg per day) remains the standard first line if pneumococcal meningitis cannot be ruled out. A simple treatment with third generation cephalosporin can be used for Neisseria meningitidis or Haemophilus influenzae meningitis, aminoglycosides must be added in case of Enterobacteriacae, mainly before 3 months of age. Second line antibiotic therapy is adapted according to the clinical and bacteriological response on Day 2. When the minimal inhibitory concentration (MIC) of pneumococcal strain is less than 0.5mg/L, third generation cephalosporin should be continued alone for a total of 10 days. In other cases, a second lumbar puncture is necessary and the initial regimen, with or without rifampicin combination, should be used for 14 days. Amoxicillin during 3 weeks, associated with gentamycin or cotrimoxazole is recommended for listeriosis.
Insights
Optimizing empirical therapy for infant meningitis is crucial. Treatment adapts based on cerebrospinal fluid analysis, bacterial identification, and susceptibility, guiding antibiotic choices for better outcomes.
Area of Science:
- Pediatrics
- Infectious Diseases
- Pharmacology
Background:
- Meningitis in infants and children can be severe.
- Optimized initial empirical therapy is essential.
- Cerebrospinal fluid (CSF) examination guides treatment.
Purpose of the Study:
- To outline optimized initial empirical therapy for pediatric meningitis.
- To describe therapeutic adaptation based on bacterial identification and susceptibility.
- To provide guidelines for antibiotic selection and duration.
Main Methods:
- Empirical combination therapy with cefotaxime or ceftriaxone and vancomycin for suspected pneumococcal meningitis.
- Third-generation cephalosporins for Neisseria meningitidis or Haemophilus influenzae.
- Addition of aminoglycosides for Enterobacteriaceae, especially in infants under 3 months.
Main Results:
- Standard first-line treatment involves cefotaxime/ceftriaxone plus vancomycin if pneumococcal meningitis is suspected.
- Tailored therapy based on Day 2 clinical and bacteriological response.
- Specific protocols for pneumococcal meningitis based on MIC values and duration of treatment (10 or 14 days).
- Amoxicillin with gentamicin or cotrimoxazole recommended for listeriosis.
Conclusions:
- Initial empirical therapy for pediatric meningitis requires careful optimization.
- Treatment adaptation based on CSF analysis, bacterial identification, and susceptibility is key.
- Specific antibiotic regimens and durations are recommended for different causative agents and resistance patterns.
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