fetomaternal hemorrhage
Also written as: FMH — Fetomaternal Hemorrhage
Abnormal transfer of fetal blood into the maternal circulation, a potential complication of fetal surgical procedures.
Full Definition
Fetomaternal hemorrhage (FMH) refers to the passage of fetal blood cells into the maternal circulatory system, which can occur spontaneously or as a complication of invasive fetal procedures. In fetal surgery, FMH can result from placental trauma, membrane manipulation, or direct fetal vessel injury. The condition is detected through maternal blood testing for fetal cells (Kleihauer-Betke test or flow cytometry) and can lead to fetal anemia, maternal alloimmunization in Rh-incompatible pregnancies, and potential fetal compromise. Monitoring and prevention strategies are essential components of fetal surgical protocols.
Usage
Usage note: Requires specific testing methods for detection and quantification.
In Context
- "Post-procedural Kleihauer-Betke testing revealed significant fetomaternal hemorrhage requiring close fetal monitoring." — Post-operative assessment
- "The risk of fetomaternal hemorrhage was discussed as part of the informed consent process." — Consent documentation