[Ultrasonic monitoring of intravascular transfusion in severe Rhesus incompatibility. Diagnostic and therapeutic aspects after fetal relaxation].

Since October 1985 47 ultrasound-guided intrauterine intravascular transfusions were performed in 14 patients at the Department of Obstetrics and Gynecology of the University of Ulm. All newborns were delivered in good condition. The successful diagnostic and therapeutic management of severe erythroblastosis in a twin pregnancy is described. The twin with severe signs of erythroblastosis had an initial hematocrit of 12% at 26 weeks of gestation. Intravascular transfusion of 60 ml packed red cells raised the hematocrit to 41%. The ascites disappeared completely ten days after the first transfusion. Two further transfusions were performed at 29 and 33 weeks of gestation. The intrauterine intravascular relaxation with Norcuron (Vecuroniumbromid) has proved advantageous in preventing interfering fetal movement. Both newborns were delivered in good condition at 36 weeks of gestation.