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Periodic lateralized epileptiform discharges as manifestation of pneumococcal meningoencephalitis

Francisco Hernández-Fernández1, Eva Fernández-Díaz, Jose M Pardal-Fernández

  • 1Department of Neurology, Complejo Hospitalario Universitario de Albacete (Hermanos Falcó,37), Albacete (Postal code: 02/2006), Spain. jggpillarno@hotmail.com.

International Archives of Medicine
|June 28, 2011
PubMed

Insights

Periodic Lateralized Epileptiform Discharges (PLEDs) are rare in pneumococcal meningoencephalitis. This case highlights PLEDs in a patient with pneumococcal CNS infection, emphasizing the need to identify treatable causes of PLEDs.

Area of Science:

  • Neuroscience
  • Infectious Diseases
  • Neurology

Background:

  • Periodic Lateralized Epileptiform Discharges (PLEDs) are typically associated with destructive cortical lesions like stroke or tumors.
  • PLEDs are known indicators of epileptic seizures, including status epilepticus.
  • The occurrence of PLEDs in pneumococcal meningoencephalitis has not been previously documented.

Purpose of the Study:

  • To report a rare case of Periodic Lateralized Epileptiform Discharges (PLEDs) in a patient with pneumococcal meningoencephalitis.
  • To highlight the association between PLEDs and central nervous system infections.
  • To underscore the importance of investigating potential etiologic factors for PLEDs.

Main Methods:

  • Case report of a 75-year-old female patient.
  • Clinical presentation including altered consciousness, focal neurological deficits, and seizures.
  • Electroencephalogram (EEG) findings revealing PLEDs in the left hemisphere.

Main Results:

  • The patient presented with symptoms consistent with meningoencephalitis and PLEDs.
  • Electroencephalogram confirmed PLEDs, indicating focal cortical dysfunction.
  • Pneumococcal meningoencephalitis was identified as the underlying cause in this case.

Conclusions:

  • This case represents the first documented instance of PLEDs in the context of pneumococcal meningoencephalitis.
  • The findings suggest that PLEDs can occur in a broader range of central nervous system infections than previously recognized.
  • Identifying and managing modifiable etiologic factors for PLEDs is crucial for patient outcomes.

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