Abstract
Objetive Evaluate the intrauterine blood transfusions performed in fetuses with anemia due to red blood cell alloimmunization in our unit and the detection rate of the middle cerebral artery Doppler to predict anemia after the first transfusion. Material and methods We performed 53 intrauterine blood transfusions in 15 patients with red blood cell alloimmunization. We analyze the characteristics of the cases and the value of the middle cerebral artery Doppler to predict fetal anemia. Results The detection rate of fetal anemia with the peak systolic velocity Doppler in the middle cerebral artery was 85% after the first transfusion and 72% after the second or more. There were no false positive results of the test in our series. Conclusions Doppler evaluation of the middle cerebral artery as predictor of fetal anemia has a lower detection rate after consecutive transfusions.
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