Related Experiment Videos
[Acute bacterial and fungal neonatal meningitis]
P Lequien1, C Gremillet, N Kacet
1Service de médecine néonatale, hôpital calmette, Lille.
Abstract:
Neonatal meningitis has two closely related features: the mechanism of infection and the nature of the pathogen. When transmitted from mother to foetus, the infection is mainly caused by one of three microorganisms: Streptococcus group B, Escherichia coli or Listeria monocytogenes. It may occur before birth, in which case meningitis is of early onset and has a rather poor prognosis. When it occurs later, the infection is a pathological consequence of physiological bacterial colonization, and its symptoms and prognosis are those of post-natal meningitis. Post-natal infections are facilitated by a pre-existing pathology or by prematurity. The responsible organisms (Gram-positive or Gram-negative bacteria, or yeasts) are often multiresistant. Advances in biology provide increasingly clearer explanation of the cerebral complications that determine the medium- and long-term prognosis. The variety of organisms and their frequent resistance to antibacterials make it necessary to use antibiotics that possess an exceptionally broad spectrum.
Insights
Neonatal meningitis, caused by bacteria like Streptococcus group B, E. coli, or Listeria, presents early with poor prognosis or later as a complication. Treatment requires broad-spectrum antibiotics due to frequent multi-resistance.
Area of Science:
- Infectious Diseases
- Microbiology
- Neonatal Medicine
Context:
- Neonatal meningitis is a severe infection in newborns.
- It can be transmitted from mother to fetus or arise postnatally.
- Risk factors include prematurity and pre-existing pathologies.
Purpose:
- To outline the mechanisms and pathogens of neonatal meningitis.
- To discuss the impact of onset timing on prognosis.
- To highlight challenges in treatment due to antimicrobial resistance.
Summary:
- Neonatal meningitis involves pathogens like Streptococcus group B, Escherichia coli, and Listeria monocytogenes.
- Early-onset meningitis (prenatal transmission) has a poor prognosis.
- Postnatal meningitis, often linked to prematurity, involves diverse, frequently multi-resistant bacteria and yeasts.
Impact:
- Understanding pathogen transmission and resistance is crucial for effective treatment.
- Advances in biology clarify cerebral complications affecting long-term outcomes.
- Broad-spectrum antibiotics are essential due to the variety of causative organisms and their resistance patterns.