Abstract
The association between cranial ultrasound (CUS) or magnetic resonance imaging (MRI) lesions and neonatal Group B streptococcal (GBS) meningitis outcome has not been studied in detail. This retrospective study assessed CUS, cranial MRI and neurodevelopmental outcome in 50 neonates with GBS meningitis admitted to three neonatal intensive care units in the Netherlands between 1992 and 2014. Death, cognitive outcome and motor outcome below -1 SD were considered as adverse outcomes. CUS was available in all and MRIs in 31 infants (62%) with 28 CUS (56%) and 27 MRIs (87%) being abnormal. MRI lesions were multifocal (n=10, 37%), bilateral (n=22; 82%) and extensive (n=11; 41%). A total of 10 died in the neonatal period. Median age at assessment was 24months. Among survivors, abnormal cognitive outcome and motor outcome were seen in 23 and 20 patients, respectively. Abnormal CUS [odds ratio (OR) 5.3, p=0.017], extensive bilateral deep grey lesions (OR 6.7, p=0.035) and white matter lesions (OR 14.0, p=0.039) correlated with abnormal motor outcome. Extensive bilateral deep grey matter lesions correlated with abnormal cognitive outcome (OR 8.1, p=0.029). Abnormal CUS and the most severely affected MRIs were associated with poor neurodevelopmental outcome in neonatal GBS meningitis.
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