title: A case of avoidable heterotopic pregnancy after single embryo transfer.
abstract: A rare case of a heterotopic pregnancy after single embryo and blastocyst transfer is presented. A couple suffered from idiopathic infertility and underwent assisted reproduction techniques in a university hospital. Intercourse on the day of HCG administration was the probable cause for an in vivo fertilization of an oocyte that was not collected during the oocyte retrieval. The patient accessed a regional hospital with a massive haemoperitoneum in the 11th week of pregnancy with the confusing information that only one embryo had been transferred during the assisted reproduction treatment. After tubal pregnancy removal, the in-utero pregnancy proceeded normally but, at the time of the second trimester scan, a caudal regression syndrome was diagnosed and the patient decided to terminate the pregnancy.
authors.affiliation: General Hospital Dr Franc Derganc Nova Gorica, Padlih borcev 13, 5000 Šempeter pri Gorici, Slovenia. Electronic address: marco.gergolet@gmail.com.
authors.forename: Marco
authors.initials: M
authors.lastname: Gergolet
authors.affiliation: General Hospital Dr Franc Derganc Nova Gorica, Padlih borcev 13, 5000 Šempeter pri Gorici, Slovenia.
authors.forename: Jure
authors.initials: J
authors.lastname: Klanjšček
authors.affiliation: Clinic for Gynecolgy, University Medical Centre Ljubljana, Šlajmerjeva 3, 1000 Ljubljana, Slovenia.
authors.forename: Lili
authors.initials: L
authors.lastname: Steblovnik
authors.affiliation: Clinic for Gynecolgy, University Medical Centre Ljubljana, Šlajmerjeva 3, 1000 Ljubljana, Slovenia.
authors.forename: Nataša
authors.initials: N
authors.lastname: Teran
authors.affiliation: General Hospital Dr Franc Derganc Nova Gorica, Padlih borcev 13, 5000 Šempeter pri Gorici, Slovenia.
authors.forename: Neda
authors.initials: N
authors.lastname: Bizjak
authors.affiliation: General Hospital Dr Franc Derganc Nova Gorica, Padlih borcev 13, 5000 Šempeter pri Gorici, Slovenia.
authors.forename: Nika
authors.initials: N
authors.lastname: Di Bon
authors.affiliation: General Hospital Dr Franc Derganc Nova Gorica, Padlih borcev 13, 5000 Šempeter pri Gorici, Slovenia.
authors.forename: Teja
authors.initials: T
authors.lastname: Budihna
authors.affiliation: General Hospital Dr Franc Derganc Nova Gorica, Padlih borcev 13, 5000 Šempeter pri Gorici, Slovenia.
authors.forename: Alenka
authors.initials: A
authors.lastname: Zavrtanik-Čelan
authors.affiliation: Clinic for Gynecolgy, University Medical Centre Ljubljana, Šlajmerjeva 3, 1000 Ljubljana, Slovenia.
authors.forename: Nataša
authors.initials: N
authors.lastname: Tul Mandić
authors.affiliation: Clinic for Gynecolgy, University Medical Centre Ljubljana, Šlajmerjeva 3, 1000 Ljubljana, Slovenia.
authors.forename: Eda
authors.initials: E
authors.lastname: Vrtačnik-Bokal
mesh_terms: D000032:Abortion, Therapeutic; D000328:Adult; D006063:Chorionic Gonadotropin / Q000008:administration & dosage; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D011247:Pregnancy; D063192:Pregnancy, Heterotopic / Q000601:surgery
chemical_list: D006063:Chorionic Gonadotropin
keywords: heterotopic pregnancy; in-vitro fertilization complications