The incidence of fetomaternal transfusion (FMT) and localization of the placenta was studied in 100 attempted external versions (ECV). In only one case could a significant FMT be detected with the Kleihauer-Betke test. No major complications occurred. Sixty per cent of the attempted versions were successful. Multiparity and either dorsal or fundal placental localization were found to be favorable factors. The determination of AFP was of no use for the detection of FMT.
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Nord et al. (1989) studied this question.
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