Clinical Presentation
An infant with congenital parvovirus B19 infection exhibited bone lesions in multiple long and axial bones, as identified on admission radiographs [PMID:23610199].
The case described severe fetal anemia and hydrops following infection before 16 gestational weeks, necessitating intrauterine transfusion [PMID:19060481].
Diagnosis
Quantitative analysis of human parvovirus B19 DNA in amniotic fluids showed concentrations ranging from 10^7 to 10^8 copies/ml, which coincided with fetal serum levels and were significantly higher than maternal serum levels (10^4 to 10^5 copies/ml) [PMID:25611946].
The study demonstrated that B19V DNA concentrations in amniotic fluids were 100 to 5,000 times higher than in maternal sera, suggesting amniotic fluid as a reliable substitute for fetal serum in diagnosing vertical transmission [PMID:25611946].
Screening neonates with congenital parvovirus B19 infection for bone lesions via radiographic examination may offer insights into their incidence and pathophysiology [PMID:23610199].
Management
By using amniotic fluid for quantitative B19V DNA assessment, clinicians can better monitor the progression of infection and tailor management strategies for both mother and fetus [PMID:25611946].
The fetus received intrauterine transfusions at 18 weeks gestation following diagnosis, highlighting the potential role of this intervention in managing severe anemia [PMID:19060481].
Complications
The bone lesions observed in this case of congenital parvovirus B19 infection nearly resolved by 10 weeks of age [PMID:23610199].
An infant with congenital parvovirus B19 infection exhibited mild unilateral ventriculomegaly antenatally and developed polymicrogyria and heterotopia postnatally, indicating potential long-term neurological complications [PMID:19060481].
References
1 Ishikawa A, Yoto Y, Asakura H, Tsutsumi H. Quantitative analysis of human parvovirus B19 DNA in maternal and fetal serum, and amniotic fluid during an early stage of pregnancy. Journal of medical virology 2015. link 2 Cantey JB, Pritchard MA, Sánchez PJ. Bone lesions in an infant with congenital parvovirus b19 infection. Pediatrics 2013. link 3 Pistorius LR, Smal J, de Haan TR, Page-Christiaens GC, Verboon-Maciolek M, Oepkes D et al.. Disturbance of cerebral neuronal migration following congenital parvovirus B19 infection. Fetal diagnosis and therapy 2008. link