Early Treatment by Plasmapheresis in a Woman with Multiple Abortions and the Rare Blood Group p

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Abstract
Women with the rare blood group p are known to have an increased rate of abortions. The case of a 36-year-old woman is presented who had had 7 spontaneous abortions in the first trimester and no live child. When treated by plasma exchange begun early in pregnancy and continued until the 29th week, she delivered a normal child. Time to begin, amount and length of time necessary to continue plasma exchange in these patients are considered. In addition, the question of which fraction of the anti-PP1Pk could be responsible for abortion is discussed. To our knowledge, this is the first case of a woman of p phenotype with no live children but with multiple abortions treated by this method, which should be seriously considered in similar cases.