TY - JOUR AU - Zorn,, J.R. AB - Abstract Two cases of interstitial pregnancy (one singleton, one heterotopic twins) were confirmed 31 and 34 days after in-vitro fertilization. Serum human chorionic gonadotrophin concentrations were 35 000 and 86 000 mlU/ml, respectively. They were treated conservatively with transvaginal ultra-sonically guided intra-ovular injection of either methotrexate in the singleton pregnancy, or potassium chloride into the ectopic sac of the heterotopic twins. No complications were observed. The intra-uterine pregnancy continued and the patient delivered a 3350 g healthy baby at 39 weeks. Heterotopic pregnancy, interstitial pregnancy, IVF—ET, methotrexate, potassium chloride This content is only available as a PDF. © Oxford University Press TI - Local medical treatment of interstitial pregnancy after in-vitro fertilization and embryo transfer (IVF—ET): two case reports JF - Human Reproduction DO - 10.1093/oxfordjournals.humrep.a138109 DA - 1993-04-01 UR - https://www.deepdyve.com/lp/oxford-university-press/local-medical-treatment-of-interstitial-pregnancy-after-in-vitro-973RhWKhLN SP - 631 EP - 634 VL - 8 IS - 4 DP - DeepDyve ER -