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Published on: February 23, 2014
[Pneumococcal meningitis in children: clinical findings, most frequent serotypes and outcome]
Eitan N Berezin1, Luiza H Falleiros-Carvalho, Claudia R Lopes
1Setor de Infectologia Pediátrica, Santa Casa de São Paulo, Brazil. eberezi@zipmail.com.br
Insights
Pneumococcal meningitis in children leads to high mortality and morbidity, with significant antimicrobial resistance. The 7-valent conjugate vaccine shows potential for preventing severe pneumococcal infections.
Area of Science:
- Pediatric infectious diseases
- Microbiology
- Epidemiology
Context:
- Pneumococcal meningitis remains a significant global health concern in children.
- Antimicrobial resistance is an increasing challenge in treating bacterial meningitis.
Purpose:
- To assess mortality, morbidity, antimicrobial susceptibility, and prevalent serotypes of pneumococcal meningitis in hospitalized children.
- To evaluate the potential impact of the 7-valent pneumococcal conjugate vaccine.
Summary:
- A study of 55 children with pneumococcal meningitis revealed a 20% mortality rate and high rates of neurological (40%) and audiological (60%) impairment.
- Penicillin-nonsusceptible strains were prevalent (36%), with some resistance to other antibiotics.
- Frequent serotypes included 1, 5, 6B, 14, 19A, and 23F, with 70% covered by the 7-valent vaccine.
Impact:
- Findings highlight the severe consequences of pneumococcal meningitis in pediatric populations.
- The study underscores the importance of vaccination strategies, particularly the 7-valent conjugate vaccine, in reducing disease burden.
Objective:
To determine mortality, morbidity, antimicrobial susceptibility and the most frequent serotypes in children admitted to hospital due to pneumococcal meningitis
Methods:
Patients with meningitis caused by Streptococcus pneumoniae detected by culture in cerebrospinal fluid or blood, aged between 1 month and 15 years old, admitted to two hospitals in the city of São Paulo, were included in the study. Susceptibility to penicillin was determined by the disk diffusion test using oxacillin 1 microg disk. If the inhibition area with oxacillin disk was less than 20mm, the strains were tested for penicillin, chloramphenicol, ceftriaxone, vancomycin and sulfamethoxazole /trimethoprim using the E test.
Results:
We identified 55 patients, 52.5% of which were younger than 6 months. The prevalence of penicillin-nonsusceptible strains was 36%. All the strains were intermediately resistant (0.1 microg/ml < or =; MIC < or = 1.0 microg/ml) and 35% of the penicillin intermediate resistant strains were resistant to sulfamethoxazole/trimethoprim. The mortality rate was 20% and impaired neurological outcome was present in 40% of the children. The audiometric test revealed alteration in 60% of the children tested. Age less than 6 months was associated with poor outcome. The most frequent serotypes were 1, 5, 6B, 14, 19A and 23F, and 70% of the serotypes were included in the new 7-valent vaccine.
Conclusions:
These findings suggest that pneumococcal meningitis presents high mortality and morbidity and that the 7-valent conjugate vaccine would be potentially useful in preventing serious pneumococcal infections.
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