Objective: To assess 6 years' neurologic outcome of a complete cohort of su
rvivors of intrauterine intravascular transfusions.
Methods: From January 1986 to December 1991, 136 intravascular transfusions
were performed in 43 fetuses presenting with signs of severe erythroblasto
sis. Before the initial transfusion, 11 of 43 fetuses had some degree of hy
drops fetalis, and hemoglobin values ranged between 1.5 and 10.7 g/dL. Neur
ologic outcome of a complete cohort of 35 long-time survivors was assessed
for up to 6 years by reviewing the hospital charts and questionnaires sent
to the family physicians or pediatricians.
Results: Long-time follow-up was available in all survivors with hydrops at
initial transfusion (seven of seven) and in 23 of 28 survivors without hyd
rops. Only one of 35 survivors had mild psychomotoric disabilities up to 1
year of age, but was free of sensorineural problems on further examination.
In a second case, delayed speech development was observed. Fetuses present
ing with hydrops fetalis before initial transfusion tended to have a higher
perinatal mortality and had a significantly higher rate of preterm deliver
y (P = .03). However, moderate or severe neurologic impairment was never ob
served, even when severe cases with hydrops fetalis or extremely low hemogl
obin levels were included.
Conclusion: Treatment of severe fetal erythroblastosis by intrauterine intr
avascular transfusions is associated with a favorable neurologic long-time
outcome. (Obstet Gynecol 1999;93:165-8. (C) 1999 by The American College of
Obstetricians and Gynecologists.).