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Neurodevelopmental assessment after congenital cytomegalovirus infection
Insights
Congenital cytomegalovirus infection in infants does not typically cause developmental issues. Most children with congenital cytomegalovirus (cCMV) infection are neurologically normal at two years old.
Area of Science:
- Pediatrics
- Neurodevelopmental Disorders
- Infectious Diseases
Background:
- Congenital cytomegalovirus (cCMV) is a common viral infection in newborns.
- The long-term neurodevelopmental impact of cCMV, particularly in asymptomatic cases, requires further elucidation.
- Early identification of developmental trajectories in infants with cCMV is crucial for timely intervention.
Purpose of the Study:
- To assess the neurodevelopmental outcomes of children with congenital cytomegalovirus infection at two years of age.
- To compare the developmental status of asymptomatic and symptomatic cCMV-infected children with controls.
- To determine if cCMV infection is associated with developmental delay in the absence of neurological impairment.
Main Methods:
- Neurodevelopmental assessment of 41 infants with cCMV and controls at 2 years using the Griffiths Scale.
- Statistical analysis to compare developmental quotients between infected and control groups.
- Categorization of cCMV cases into asymptomatic and symptomatic based on neurological abnormalities.
Main Results:
- Children with asymptomatic cCMV infection showed developmental scores similar to controls.
- Symptomatic cCMV-infected children had significantly lower mean developmental scores.
- The study detected no evidence of cCMV-associated intellectual disability without other neurological impairments.
Conclusions:
- Congenital cytomegalovirus infection is not associated with developmental delay in asymptomatic children at two years.
- Approximately 90% of infants with congenital cytomegalovirus infection exhibit normal neurological and developmental status at two years.
- Early neurological impairment is a key factor in predicting adverse neurodevelopmental outcomes in cCMV-infected infants.
Abstract:
The neurodevelopmental state of 41 children with congenital cytomegalovirus infection and their controls was assessed at 2 years using the Griffiths scale. The scores achieved by children with congenital cytomegalovirus but with no associated neurological abnormality (asymptomatic) were similar to those of the control children, whereas the mean score of the five children with congenital infection and neurological impairment (symptomatic) was significantly lower. This study, which has the statistical power to detect differences in developmental quotient as small as five points, gave no evidence that at 2 years cytomegalovirus infection was associated with mental retardation in the absence of other neurological impairment. Thus 90% of children with congenital cytomegalovirus infection at 2 years are neurologically and developmentally normal.