Objective:

To study the prevalence of hearing loss in children with congenital Cytomegalovirus infection and the influence of the type of maternal infection, symptoms and neonatal treatment with valganciclovir.

Study design:

Retrospective cohort

Material and Methods:

Data was collected through computerized processes of children with congenital Citomegalovirus, followed in Hospital de Guimarães, between 2017 and 2022.

Hearing evaluation was performed between 2 months and 2 years old. The type of maternal infection and treatment with valganciclovir were assessed.

Results:

Twenty-two children were enrolled in this study. Global prevalence of hearing loss was 50%, greater in symptomatic children and children born to mothers with primary infection. After treatment with valganciclovir, 41.6% of children presented with hearing loss.

Conclusion:

The risk of hearing loss is greater in symptomatic children and children born to mothers with primary infection. A screening programme should be implemented regarding the high prevalence of hearing loss in asymptomatic children.

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