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Creutzfeldt-Jakob disease in Hong Kong

K KP Ng1, P CK Li, C K Wong

  • 1Department of Medicine, Queen Elizabeth Hospital, Kowloon, Hong Kong.

Insights

Rapidly progressive dementia in the elderly can indicate Creutzfeldt-Jakob disease. Characteristic electroencephalogram findings, such as periodic discharges, aid in early clinical diagnosis.

Area of Science:

  • Neurology
  • Neuroscience
  • Pathology

Background:

  • Rapidly progressive dementia (RPD) presents a diagnostic challenge in elderly patients.
  • Creutzfeldt-Jakob disease (CJD) is a rare, fatal neurodegenerative disorder causing RPD.

Purpose of the Study:

  • To highlight the diagnostic utility of electroencephalograms (EEGs) in elderly patients with RPD.
  • To correlate clinical presentation and EEG findings with pathological confirmation of Creutzfeldt-Jakob disease.

Main Methods:

  • Case presentation of two elderly patients with RPD.
  • Electroencephalogram (EEG) analysis to identify characteristic periodic discharges.
  • Pathological confirmation of Creutzfeldt-Jakob disease in one patient.

Main Results:

  • Both patients exhibited rapidly progressive dementia.
  • Electroencephalograms revealed characteristic periodic discharges in both cases.
  • Pathological examination confirmed Creutzfeldt-Jakob disease in one patient, supporting the EEG findings.

Conclusions:

  • Striking clinical features of RPD, coupled with characteristic EEG periodic discharges, are highly suggestive of Creutzfeldt-Jakob disease in elderly individuals.
  • Early clinical diagnosis is feasible based on these key findings, even before pathological confirmation.

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