Heterotopic abdominal pregnancy following two-blastocyst embryo transfer.

OBJECTIVE

To report a case of a heterotopic primary abdominal pregnancy after two-blastocyst IVF-ET.

DESIGN

Case report.

SETTING

University-based IVF program.

PATIENT(S): A woman with a heterotopic abdominal pregnancy after IVF-ET.

INTERVENTION(S): Pituitary down-regulation with luteal antagon, ovulation induction with menotropins, IVF-ET, progesterone in oil for luteal support, dilation and curettage for missed abortion, laparoscopy, and resection of abdominal gestation.

MAIN OUTCOME MEASURE(S): Human chorionic gonadotropin levels, pelvic ultrasound examinations, and laparoscopic and pathologic findings.

RESULT(S): A heterotopic abdominal pregnancy occurred after a two-blastocyst IVF-ET. The concurrent intrauterine gestation resulted in a miscarriage.

CONCLUSION(S): The number of embryos transferred has been identified as a powerful risk factor for heterotopic pregnancy; however, heterotopic pregnancy can occur following a two-embryo, blastocyst stage transfer.