Neonatal Group B Streptococcal Meningitis: Predictors for Poor Neurologic Outcome at 18 Months

Abstract

Aim

To find early predictors for poor neurodevelopmental outcome after neonatal group B streptococcal meningitis.

Methods

We retrospectively analyzed clinical characteristics of 23 patients with neonatal group B streptococcal meningitis and their neurodevelopmental outcome at 18 months. Available group B Streptococcus strains were serotyped and their genomes characterized.

Results

We found several differences between patients with early- (n = 5) and late-onset (n = 18) disease. Nine children had neurologic abnormalities at 18 months and 4 had epilepsy, all of them after late-onset disease. Most important risk factors for poor outcome were impaired consciousness at admission, hemodynamic instability, seizures, or abnormal electroencephalogram during the acute illness and abnormal neurologic and ophthalmologic examination at the end of treatment, whereas abnormalities in laboratory and imaging studies were not predictive. Hypervirulent serotype III, multilocus sequence type 17 group B Streptococcus was the predominant pathogen.

Conclusions

Neurodevelopmental impairment after neonatal group B streptococcal meningitis is likelier in those with clinical and neurophysiological features indicating worse disease severity.