[Progressive cognitive disturbances in a 17-year-old boy]

Area of Science:

• Neurology
• Infectious Diseases
• Immunology

Background:

• Subacute sclerosing panencephalitis (SSPE) is a rare, fatal neurological complication following measles infection.
• Widespread measles immunization since 1976 has significantly reduced SSPE incidence.

Observation:

• A 17-year-old unvaccinated male presented with rapid cognitive decline and extrapyramidal symptoms.
• Clinical suspicion of SSPE was confirmed by characteristic EEG findings and cerebrospinal fluid analysis.
• The patient succumbed to the disease four months post-diagnosis.

Findings:

• SSPE continues to occur, particularly in unvaccinated individuals.
• The case demonstrates a delayed onset of SSPE years after primary measles infection.
• Electroencephalography (EEG) revealed specific periodic complexes indicative of SSPE.

Implications:

• The findings underscore the persistent risk of SSPE in unvaccinated populations.
• Effective treatment for SSPE is lacking, emphasizing prevention through measles vaccination.
• Public health initiatives promoting measles immunization are crucial for preventing SSPE.