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Published on: September 20, 2018
Intracranial calcification with congenital rubella syndrome in a mother with serologic immunity
Kei Numazaki1, Tomoko Fujikawa
1Department of Pediatrics, Sapporo Medical University School of Medicine, Japan. numazaki@sapmed.ac.jp
Insights
This case study details congenital rubella infection in an infant, despite maternal vaccination. The infant exhibited neurological and developmental issues, highlighting the risks of in-utero rubella exposure.
Area of Science:
- Pediatrics
- Infectious Diseases
- Virology
Background:
- Congenital rubella syndrome (CRS) can occur even if the mother was vaccinated.
- Maternal rubella infection during pregnancy poses significant risks to fetal development.
Purpose of the Study:
- To report a case of congenital rubella infection in an infant born to a vaccinated mother.
- To document the clinical presentation, diagnostic findings, and outcomes of CRS.
Main Methods:
- Case report detailing clinical history and physical examination.
- Neuroimaging (CT and MRI) to assess brain abnormalities.
- Laboratory tests including rubella serology, IgG and IgM antibody detection, and viral RNA detection.
Main Results:
- Infant diagnosed with congenital rubella syndrome.
- Neuroimaging revealed cortical low-density areas and periventricular calcifications.
- Rubella virus RNA detected in serum, urine, and cerebrospinal fluid.
- Infant presented with severe hearing loss, mental retardation, and developmental delay.
Conclusions:
- Congenital rubella infection can occur despite maternal vaccination, emphasizing the need for robust public health surveillance.
- Early diagnosis and monitoring are crucial for managing the long-term consequences of CRS.
- This case underscores the importance of maintaining high vaccination rates to prevent rubella outbreaks.
Abstract:
We report a case of an infant with congenital rubella. The mother had received rubella vaccine at the age of 13 years. Rubella serology was performed on day 34 of pregnancy and the result was interpreted as being a positive titer. The patient was a girl born by cesarean section owing to intrauterine growth retardation and fetal distress after 37 weeks' gestation. A computed tomographic scan at 4 days of age showed several cortical low-density areas and calcifications of the periventricular area and basal ganglia. Magnetic resonance imaging (MRI) performed at 4 weeks of age showed almost similar findings. The infant had serum IgG and IgM antibodies against rubella. Rubella virus ribonucleic acid (RNA) was detected from the serum, urine, and cerebrospinal fluid of the infant. At 2 months of age, the patient showed severe bilateral hearing loss. At 12 months of age, she had mild mental retardation and developmental delay.
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