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Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
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Aseptic meningitis.

Lise E Nigrovic1

  • 1Department of Medicine, Children's Hospital Boston and Harvard Medical School, Boston, MA, USA.

Handbook of Clinical Neurology
|April 30, 2013
PubMed
Summary
This summary is machine-generated.

This chapter details aseptic meningitis and encephalitis, focusing on causes, diagnosis, and treatment. It highlights clinical decision rules to differentiate low-risk aseptic meningitis from rare bacterial meningitis in children.

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Area of Science:

  • Neurology
  • Pediatrics
  • Infectious Diseases

Background:

  • Bacterial meningitis, though rare due to vaccines, requires lengthy culture diagnostics.
  • Aseptic meningitis is a common, generally benign childhood illness managed with supportive care.
  • Distinguishing between aseptic and bacterial meningitis is crucial for appropriate patient management.

Purpose of the Study:

  • To outline the clinical presentation, diagnosis, and treatment of aseptic meningitis and encephalitis.
  • To identify and discuss the primary causes of aseptic meningitis.
  • To review clinical decision rules aiding in the risk assessment of bacterial meningitis in children presenting with aseptic meningitis.

Main Methods:

  • Literature review of clinical presentations, diagnostic methods, and treatment strategies for aseptic meningitis and encephalitis.
  • Analysis of major etiological factors contributing to aseptic meningitis.
  • Evaluation of existing clinical decision rules for differentiating low-risk bacterial meningitis.

Main Results:

  • Aseptic meningitis is typically benign and requires supportive care.
  • Bacterial meningitis diagnosis can be delayed by culture-dependent methods.
  • Clinical decision rules may help identify children at low risk for bacterial meningitis.

Conclusions:

  • Accurate diagnosis and risk stratification are essential for managing pediatric meningitis.
  • Clinical decision rules can aid in distinguishing aseptic meningitis from potentially severe bacterial meningitis.
  • Understanding the causes and presentations of aseptic meningitis informs treatment strategies.