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  • Title: Long-term neurodevelopmental outcome and brain volume after treatment for hydrops fetalis by in utero intravascular transfusion.
    Author: Harper DC, Swingle HM, Weiner CP, Bonthius DJ, Aylward GP, Widness JA.
    Journal: Am J Obstet Gynecol; 2006 Jul; 195(1):192-200. PubMed ID: 16813754.
    Abstract:
    OBJECTIVE: We tested the hypothesis that long-term neurodevelopmental outcomes of successfully treated fetuses with immune hydrops are similar to their unaffected siblings according to a protocol that addresses the underlying pathophysiologic condition. STUDY DESIGN: Sixteen of 18 consecutive hydropic fetuses (89%) who were treated in a dedicated fetal medicine unit between July 1985 and October 1995 survived. The transfusion protocol used a 2-step correction over a 2 to 4 day interval, combined with umbilical venous pressure measurements to avoid over transfusion and bicarbonate administration to assure a posttransfusion UV pH of >7.30. Survivors were evaluated at a mean age of 10 years. Statistical analyses included t-test, Wilcoxon rank-sum test, Fisher's exact test, and Pearson coefficients. RESULTS: Overall, death or major neurologic morbidity occurred in 4 of 18 of the fetuses (22%) who were treated (2/16 of survivors [12.5%]). Among the survivors, the children with immune hydrops had physical, neurologic, and cognitive outcomes statistically similar to their siblings, except for a measure of visual attention. Two of the children (12%) had major neurologic sequelae. Brain volumes were statistically smaller than unrelated control subjects by 8.8%, but these control subjects were not matched for height at testing or gestational age at birth. Both groups had brain volumes within the normal range. CONCLUSION: Intravascular transfusion of fetuses with profoundly anemic immune hydrops results in high survival rates and favorable long-term neuropsychological outcomes.
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