Case of progressive intrauterine twin pregnancy after surgical treatment of cornual pregnancy.

OBJECTIVE To report on a case of heterotopic triplet pregnancy after in utero transfer of three embryos obtained by in vitro fertilization (IVF), with progression of the intrauterine twin pregnancy after resection of the cornual pregnancy. DESIGN Technique and instrumentation. SETTING Département de Médecine de la Reproduction, Hôpital Edouard Herriot, Lyon, France. PATIENTS A 32-year-old woman, nulliparous with primary infertility for the previous 12 years due to mixed causes (tubal and male infertility). INTERVENTIONS Diagnosis by ultrasound scan and per-laparoscopic confirmation, followed by resection of the cornual pregnancy by laparotomy. MAIN OUTCOME MEASURES Ultrasound diagnosis and follow-up of the pregnancy. Delivery. RESULTS Complete ablation of the cornual pregnancy. Progression of the intrauterine twin pregnancy without difficulties until 31 weeks of gestation. Cesarean upon onset of labor. Birth of two living infants. The scar of the uterine horn, examined during the caesarean, was thick and solid. CONCLUSIONS The early diagnosis and surgical treatment of an ectopic pregnancy permitted the development of the intrauterine pregnancy. The risk of heterotopic pregnancy is increased by medical techniques that facilitate procreation. This risk is directly related to the number of embryos transferred. In the case of heterotopic pregnancy, the rate of progressive intrauterine pregnancy after treatment of the ectopic pregnancy is encouraging.