P35.1

Clinical Causes: Congenital CMV infection occurs when a pregnant woman contracts the cytomegalovirus and passes it to her developing fetus. The primary cause is a maternal infection during pregnancy, which may be contracted through various sources such as close contact with young children, sexual activity, or exposure to infected bodily fluids. Once infected, the virus crosses the placenta and infects the fetus, potentially causing congenital infection.

Key Symptoms: Infants born with congenital CMV infection may show a wide range of signs and symptoms, including: - Jaundice (yellowing of the skin and eyes) - Small size at birth ( intrauterine growth restriction) - Enlarged liver and spleen (hepatosplenomegaly) - Blueberry muffin skin lesions (small purple or blue spots) - Seizures or neurological abnormalities - Hearing loss or vision problems - Low birth weight - Petechiae (small purple or red spots caused by bleeding under the skin) - Developmental delays or intellectual disabilities Many infants might appear healthy at birth but can develop health issues later in life, especially related to hearing and development.

Diagnosis Path: The diagnosis of congenital CMV infection involves several tests, including: - Prenatal testing: Sometimes identified through ultrasound findings or maternal blood tests indicating recent CMV infection. - Postnatal testing: Detecting the virus in newborns typically involves laboratory analysis of urine, saliva, blood, or other tissues within the first few weeks of life. - Blood tests: Including PCR (polymerase chain reaction) to detect viral DNA. - Hearing and neurological assessments: To identify any related impairments or delays. Accurate diagnosis is crucial for early management and intervention planning.

Treatment Protocols: While there is no universally accepted cure for congenital CMV, treatment options are available for certain cases to reduce symptoms and prevent complications: - Antiviral medications: Ganciclovir or valganciclovir may be prescribed to infants with symptomatic infections, especially with neurological involvement, to help limit virus replication. - Supportive therapies: Including hearing aids, speech therapy, physical therapy, and special education services tailored to the child's needs. - Regular monitoring: Ongoing assessment of hearing, vision, and developmental progress to address emerging issues promptly. Early intervention can improve quality of life and developmental outcomes for affected children.