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Infectious Meningitis and Encephalitis

Rachel J Bystritsky1, Felicia C Chow2

  • 1Department of Medicine, University of California San Francisco, 513 Parnassus Avenue, Room S-280, San Francisco, CA 94143, USA.

Neurologic Clinics
|November 20, 2021
PubMed

Insights

Meningitis and encephalitis cause severe illness globally. Prompt diagnosis and treatment are vital, especially for acute bacterial meningitis and human simplex virus encephalitis, to reduce mortality and morbidity.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Public Health

Background:

  • Infectious meningitis and encephalitis pose significant global health challenges, leading to substantial morbidity and mortality.
  • Prompt recognition and treatment are critical for managing these serious neurological infections.

Purpose of the Study:

  • To summarize the key aspects of infectious meningitis and encephalitis, emphasizing diagnostic and therapeutic considerations.
  • To highlight the urgency required for specific forms like acute bacterial meningitis and human simplex virus encephalitis.

Main Methods:

  • Review of existing literature on infectious meningitis and encephalitis.
  • Analysis of typical presentations, causative agents, and diagnostic challenges.
  • Discussion of established and recommended treatment strategies.

Main Results:

  • Acute bacterial meningitis requires immediate intervention due to its rapid fatality.
  • Viral meningitis is generally self-limiting.
  • Chronic meningitis is often linked to tuberculosis and fungal infections, presenting diagnostic difficulties.
  • Human simplex virus encephalitis is the most common cause of encephalitis and necessitates swift treatment.

Conclusions:

  • Early diagnosis and appropriate, timely therapy are paramount in managing infectious meningitis and encephalitis.
  • Empirical treatment is often necessary for suspected tuberculous meningitis due to diagnostic limitations.
  • Intravenous acyclovir is crucial for treating human simplex virus encephalitis.
Keywords:
CNS infectionEncephalitisMeningitis

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