fetal anemia
Reduced fetal red blood cell count or hemoglobin concentration, often requiring intrauterine transfusion.
Full Definition
Fetal anemia represents a significant decrease in fetal red blood cell count or hemoglobin concentration below normal gestational age parameters. Common causes include maternal alloimmunization (Rh disease), fetal-maternal hemorrhage, or complications from twin-to-twin transfusion syndrome. Diagnosis relies on middle cerebral artery Doppler studies showing increased peak systolic velocity. Treatment may require intrauterine blood transfusion via cordocentesis or intravascular techniques. Editors must understand the relationship between various fetal surgical conditions and secondary anemia development.
Usage
Usage note: Always specify severity (mild/moderate/severe) based on MCA-PSV measurements when applicable.
In Context
- "Middle cerebral artery Doppler values indicated moderate fetal anemia requiring urgent intervention." — Ultrasound report
- "Severe fetal anemia developed secondary to laser photocoagulation for TTTS." — Postoperative complication note