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A 39-year-old man with acute mental status changes.

Emily D Billingsley1, Allison Hovland, Demetrio Agcaoili

  • 1Louisiana State University Department of Medicine, New Orleans, USA.

The Journal of the Louisiana State Medical Society : Official Organ of the Louisiana State Medical Society
|November 21, 2002
PubMed
Summary

Herpes simplex virus (HSV) encephalitis is common. PCR testing of cerebrospinal fluid (CSF) improves diagnosis, enabling early treatment and better outcomes for this treatable form of viral encephalitis.

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Molecular Diagnostics

Background:

  • Herpes simplex virus (HSV) encephalitis is a significant cause of acute viral encephalitis.
  • Distinguishing HSV encephalitis from other viral encephalitides is crucial due to the availability of effective treatment.

Observation:

  • Polymerase chain reaction (PCR) amplification for HSV DNA in cerebrospinal fluid (CSF) has enhanced diagnostic sensitivity.
  • This increased sensitivity allows for the diagnosis of HSV encephalitis across diverse clinical presentations.

Findings:

  • PCR detection of HSV DNA in CSF is a highly sensitive method for diagnosing HSV encephalitis.
  • The diagnostic capabilities of PCR have broadened the recognition of HSV encephalitis in various clinical scenarios.

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Implications:

  • Early and accurate diagnosis of HSV encephalitis through PCR enables timely initiation of antiviral therapy.
  • Prompt treatment significantly improves the prognosis for patients with HSV encephalitis.
  • Improved diagnostic tools like PCR are vital for managing infectious neurological diseases.