Giesbers S, Bos M, Bulten J, van der Meeren L, van Drongelen J. Subamniotic Hemorrhage, a Possible New Presentation of Fetal and Neonatal Alloimmune Thrombocytopenia.
Fetal Diagn Ther 2022;
49:60-64. [PMID:
35021176 DOI:
10.1159/000521866]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 12/23/2021] [Indexed: 01/18/2023]
Abstract
BACKGROUND
Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a rare fetal disease in which maternal antibodies directed toward fetal human platelet antigens (HPA) are formed during pregnancy and cause fetal thrombocytopenia. The diagnosis FNAIT is suspected when a fetus or neonate presents with signs of bleeding.
CASE
We describe a pregnancy complicated by a placental hematoma in the 20th week of gestation as the first manifestation of FNAIT. Further evaluation showed signs of germinal matrix hemorrhage and HPA-5b allo-antibodies. After the diagnosis, intravenous immunoglobulin was administered weekly and a healthy daughter was born at 37 weeks. Histopathological analysis revealed that the hematoma was caused by a subamniotic hemorrhage of fetal origin.
CONCLUSION
A subamniotic hematoma appears to be the first manifestation of FNAIT.
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