Objective
The pathophysiology of fetal hydrops is still unclear. One factor that is believed
to contribute to hydrops is hypoalbuminemia. Our research question was whether hypoalbuminemia
in immune hydrops is causative or a secondary effect.
Study design
Between 1987 and 2005, fetal blood samples were taken at the first fetal blood transfusion
in 224 Rh-D alloimmunized pregnancies. We measured hemoglobin concentration and albumin
concentration and assessed the severity of hydrops.
Results
A decrease in albumin concentration occurred only below a hemoglobin deficit of >8
SDs in 27 fetuses. In 161 nonhydropic, 44 mildly hydropic, and 19 severely hydropic
fetuses, albumin concentrations were >2 SDs below the mean for gestational age in
6%, 14%, and 63%, respectively.
Conclusion
Our finding that most fetuses with immune hydrops have an albumin concentration within
the normal range (71%) suggests that hypoalbuminemia is unlikely to cause the initial
development of immune hydrops.
Key words
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Article Info
Publication History
Accepted:
February 15,
2006
Received in revised form:
February 15,
2006
Received:
December 9,
2005
Footnotes
Presented at the 26th Annual Meeting of the Society for Maternal Fetal Medicine, January 30-February 4, 2006, Miami, FL.
Identification
Copyright
© 2006 Mosby, Inc. Published by Elsevier Inc. All rights reserved.