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Biochemical Measurement of Neonatal Hypoxia
Published on: August 24, 2011
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[Neonatal Diamond-Blackfan anemia: a case report]
Hong-Ling Wei1, Tong-Yan Han1, Xiao-Hui Zhu
1Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China.
Summary
This case report details a neonate diagnosed with Diamond-Blackfan anemia due to an RPS19 gene variant. Early diagnosis and management led to normal hemoglobin and reticulocyte counts by age two.
Area of Science:
- Pediatrics
- Genetics
- Hematology
Background:
- Diamond-Blackfan anemia (DBA) is a rare inherited bone marrow failure syndrome.
- DBA typically presents in infancy with severe anemia and physical anomalies.
- Genetic variants, particularly in ribosomal protein genes like RPS19, are causative.
Purpose of the Study:
- To report a case of early-onset severe anemia in a neonate.
- To highlight the genetic diagnosis of Diamond-Blackfan anemia.
- To expand the understanding of DBA's phenotypic spectrum.
Main Methods:
- Clinical presentation and physical examination of a neonate.
- Laboratory investigations including hemoglobin and bone marrow examination.
- Whole-exome sequencing to identify pathogenic variants in the RPS19 gene.
Main Results:
- The neonate presented with severe anemia (hemoglobin 44 g/L) and hypoplastic bone marrow.
- Whole-exome sequencing revealed a heterozygous pathogenic RPS19 variant (c.175T>C).
- The patient achieved normal hemoglobin and reticulocyte counts by 2 years and 2 months of age.
Conclusions:
- This case confirms genetically confirmed Diamond-Blackfan anemia in a neonate with severe presentation.
- The findings contribute to the known phenotypic spectrum of DBA.
- Early diagnosis and management are crucial for favorable outcomes in DBA.
