Frequency, risk factors, and outcome of neonatal meningitis in sepsis

To determine the frequency, associated risk factors, and outcome of meningitis in neonates presenting with sepsis at Aga khan Tertiary Care Hospital, Karachi.

A descriptive cross-sectional study was conducted at pediatrics department of Aga Khan Tertiary University Hospital, Karachi, Pakistan from July 31, 2020, till January 30, 2021. Neonates of either gender admitted with neonatal sepsis were enrolled using non-probability consecutive sampling technique. Meningitis was diagnosed as per the findings of cerebrospinal fluid (CSF) along with the outcome in terms of death and early neurological complications such as subdural effusions and hydrocephalus.

Of 209 neonates with sepsis, meningitis was observed in 59 (28.2%) neonates. A significantly lower mean weight (p-value 0.024) while significantly higher mean duration of stay (p-value <0.001) was observed in patient with meningitis. Moreover, a significantly higher proportion of meningitis was observed in neonates who had fever (p-value 0.048), vomiting (p-value 0.009), abdominal distension (p-value <0.001), and blood culture positivity (p-value <0.001). Blood culture positive Methicillin-sensitive Staphylococcus aureus (MSSA) was considerably higher among neonates with meningitis. Of 59 neonates with meningitis, mortality was observed in 2 (3.4%) neonates. Positive CSF culture was observed in 6 (2.9%) while hydrocephalus was observed in 7 (11.9%) and effusion in 6 (10.2%) neonates.

Neonatal meningitis is common in neonates presenting with sepsis, but mortality rate is low. Positive cultures, particularly with MSSA, further underscore the bacterial etiology in neonatal meningitis.