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Keywords:

  • vasa previa;
  • pregnancy outcome;
  • ultrasound

Abstract

We describe three cases of vasa previa and review the English-language literature for all cases reported since 1980. Antenatal diagnosis was significantly associated with decreased fetal mortality (p = 0.033). A low-lying placenta is a risk factor for vasa previa, as it occurred in 81% of patients. Copyright © 1998 International Society of Ultrasound in Obstetrics and Gynecology