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Intravascular Fetal Blood Transfusion Under Ultrasonic Guidance In A Case Of Severe Rh Isoimmunization

A severely Rh‐affected fetus with an initial hematocrit value of 7% and a hemoglobin value of 2.3 g/dl was transfused three times by the intravascular route into the umbilical cord under ultrasonic guidance. After the second transfusion, fetal movements recurred and the non‐stress test became reactive. Neonatal outcome was favorable. The implications of this procedure are discussed.