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Congenital cytomegalovirus (CMV) infection can cause severe permanent disabilities. A mother who is seronegative before conception but acquires infection during pregnancy is a risk factor for congenital infection. We describe a neonate in whom congenital CMV infection was diagnosed at birth and confirmed with DNA quantitation by means of the polymerase chain reaction, was accompanied by cerebral ventriculomegaly and severe hearing loss, and was treated with ganciclovir/valganciclovir for 6 weeks. Initially, cerebral ventriculomegaly and calcification were also found with computed tomography, and severe hearing loss was detected with auditory brainstem response testing. After treatment, CMV DNA decreased in copy number and became undetectable. No marked side effects occurred after treatment. Surprisingly, 1 year after treatment, neurological and motor development was equivalent to that in a healthy infant. Audiometry indicated that auditory ability would improve with rehabilitation, speech and language therapy, and cochlear implantation. Single-photon emission computed tomography showed marked improvement 6 months after treatment. This case provides compelling evidence that a reliable diagnosis of congenital CMV infections coupled with a prompt and appropriate treatment program can prevent permanent disability. It is, therefore, important to establish a more effective strategy for the management of congenital CMV infection.

A Neonate with Reduced Cytomegalovirus DNA Copy Number and Marked Improvement of Hearing in the Treatment of Congenital Cytomegalovirus Infection