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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.
Abstract:
Recently described, the congenital Zika syndrome caused by the Zika virus has many features of other congenital infections. This case series study reports 22 infants with congenital Zika syndrome in Brazil who developed infantile spasms during their first year of life. The median age of infantile spasms onset was 4.3 (±1.4) months and ranged from 1 to 7 months. Neurologic evaluation showed that all 22 children presented severe impairment of neuropsychomotor development. A total of 18 infants had an interictal hypsarrhythmia electroencephalogram (EEG) pattern. Vigabatrin was prescribed as first-line treatment; however, only 5 patients were controlled. Steroid regimes were started for children who did not respond to vigabatrin and they are being followed. In conclusion, congenital Zika syndrome may be considered as an etiological agent of infantile spasms.
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