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Feto-maternal bleeding. During pregnancy and at delivery
Acta Obstetricia Et Gynecologica Scandinavica
|January 1, 1977
Summary
Feto-maternal bleeding (f.m.b.) occurred in nearly two-thirds of mothers postpartum. Most bleeding events were small (<0.1 ml), but complications increased the risk of larger feto-maternal hemorrhages.
Area of Science:
- Obstetrics and Gynecology
- Maternal-Fetal Medicine
- Hematology
Background:
- Feto-maternal bleeding (f.m.b.) is a significant concern during pregnancy and delivery.
- Quantifying f.m.b. is crucial for assessing potential risks to both mother and fetus.
Purpose of the Study:
- To investigate the occurrence and volume of feto-maternal bleeding in mothers.
- To identify risk factors associated with increased f.m.b.
Main Methods:
- Blood samples from pregnant women and postpartum mothers were analyzed.
- Kleihauer acid-elution technique and Schneider's counting method were employed.
- F.m.b. was defined by clinically significant differences in hb-F cell counts.
Main Results:
- Feto-maternal bleeding occurred in approximately 2/3 of mothers postpartum.
- The majority of f.m.b. events were less than 0.1 ml.
- Complications such as abortion, pre-eclampsia, and cesarean section were linked to larger f.m.b. volumes.
Conclusions:
- Postpartum feto-maternal bleeding is common, typically in small volumes.
- Pregnancy and delivery complications elevate the risk of significant feto-maternal hemorrhage.