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Septicemic neonates without lumbar puncture: what are we missing?

Md Mahbubul Hoque1, A S M Nawshad Uddin Ahmed, M A K Azad Chowdhury

  • 1Department of Neonatology, Dhaka Shishu (Children's) Hospital, Bangladesh Institute of Child Health, Dhaka, Bangladesh.

Journal of Tropical Pediatrics
|June 22, 2005
PubMed

Insights

Neonatal meningitis is often missed in septicemic infants due to subtle symptoms. Lumbar puncture is crucial for diagnosing meningitis in septicemic newborns, revealing a 26.7% prevalence and higher mortality.

Area of Science:

  • Neonatal Medicine
  • Infectious Diseases
  • Pediatric Neurology

Background:

  • Meningitis in newborn infants presents a significant health challenge with high mortality and neurological complications.
  • Subtle clinical signs in neonates often obscure serious infections, making it difficult to differentiate sepsis from meningitis.
  • Delayed or missed lumbar punctures contribute to delayed meningitis diagnosis in septicemic neonates.

Purpose of the Study:

  • To determine the prevalence of meningitis among neonates with culture-proven septicemia but without a prior meningitis diagnosis.
  • To highlight the importance of laboratory investigations in identifying meningitis in this vulnerable population.

Main Methods:

  • Prospective enrollment of neonates with blood culture-positive septicemia not initially diagnosed as meningitis.
  • Analysis of cerebrospinal fluid (CSF) cytology and biochemistry for meningitis indicators.
  • CSF culture to identify specific pathogens and compare with blood isolates.

Main Results:

  • Eight out of 30 (26.7%) septicemic neonates showed CSF abnormalities indicative of meningitis.
  • Four cases had positive CSF cultures, with Klebsiella pneumoniae and Pseudomonas aeruginosa identified.
  • Clinical presentations were similar between septicemia and meningitis groups.
  • Mortality was significantly higher in neonates with meningitis (37.5%) compared to those with septicemia alone (13.3%).

Conclusions:

  • Neonatal meningitis is frequently undiagnosed in cases of septicemia.
  • Early diagnosis through lumbar puncture in suspected septicemia cases is critical for reducing mortality.
  • Routine lumbar puncture alongside blood cultures is recommended for all neonates with suspected septicemia.

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