Congenital Zika Syndrome and Infantile Spasms: Case Series Study

Lucas V Alves1, Maria J G Mello1, Patrícia G Bezerra1

  • 11 Department of Paediatrics Neurology, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Boa Vista, Recife, Brazil.

Insights

Congenital Zika syndrome in infants can cause severe neurological issues, including infantile spasms. This study highlights Zika virus as a potential cause of these severe developmental impairments.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Pediatrics

Background:

  • Congenital Zika syndrome, a condition caused by the Zika virus, shares characteristics with other congenital infections.
  • Infantile spasms are a severe form of epilepsy in infants, often associated with significant developmental delays.

Purpose of the Study:

  • To investigate the occurrence and characteristics of infantile spasms in infants diagnosed with congenital Zika syndrome.
  • To assess the neurological development and electroencephalogram (EEG) findings in these infants.

Main Methods:

  • A case series study involving 22 infants with congenital Zika syndrome in Brazil.
  • Clinical and neurological evaluations were performed.
  • Electroencephalogram (EEG) patterns were analyzed.
  • Treatment responses to vigabatrin and steroid regimens were documented.

Main Results:

  • All 22 infants presented with severe impairment of neuropsychomotor development.
  • The median age of infantile spasms onset was 4.3 months (range: 1-7 months).
  • Eighteen infants showed an interictal hypsarrhythmia EEG pattern.
  • Vigabatrin controlled spasms in only 5 patients; others required steroid treatment.

Conclusions:

  • Congenital Zika syndrome is associated with a high incidence of infantile spasms.
  • The Zika virus should be considered an etiological agent for infantile spasms.
  • Early diagnosis and management are crucial for infants with congenital Zika syndrome and neurological complications.

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