Sixty‐six cases of intrauterine fetal death

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Abstract
Background. A prospective study was performed to elucidate the etiology of intrauterine fetal death and to evaluate diagnostic procedures.Methods. Sixty‐six stillbirth cases with a gestational age of more than 25 complete weeks were studied. using an extensive test protocol. The validity of the cause of death was classified as certain. probable, possible and unexplained. The extent to which the diagnostic measures had been performed was classified: patients in whom none or only a few tests were performed, patients partially tested and patients completely tested.Results. The cause of death was certain in 57%, probable in 20%, and possible in 11% of the cases. In only 12% of the cases did the cause of death remain entirely unexplained. The principal causes of IUFD were infections, including premature rupture of the membranes (15%). anomalies (11%), preeclampsia‐associated conditions (9%) and intrauterine growth retardation of unknown etiology (8%). In this series, less well‐known conditions, such as circulating maternal autoantibodies and feto‐maternal transfusion, also appeared to play an important role in causing intra‐uterine fetal death.Conclusions. An extensive and relevant test protocol provides information as to the cause of death in the majority of cases. Future protocols should include tests for autoimmune antibodies and feto‐maternal transfusion.