Ovarian pregnancy in a woman after postpartum tubal ligation

Heterotopic Pregnancy After In Vitro Fertilization and Embryo Transfer After Bilateral Total Salpingectomy/Tubal Ligation: Case Report and Literature Review

Heterotopic pregnancy is defined as the simultaneous occurrence of intrauterine and ectopic pregnancy, either of which may be single or multiple. It occurs in up to 1% of pregnancies after in vitro fertilization and embryo transfer. This article reports 2 rare cases of heterotopic pregnancy after in vitro fertilization and presents a literature review. In the first case, a 28-year-old woman had previous laparoscopic bilateral total salpingectomy for a right tubal pregnancy and a left hydrosalpinx. However, she had ovarian heterotopic pregnancy after a third in vitro fertilization cycle. Emergency laparotomy was performed. The synchronous intrauterine pregnancy continued with no further complications and ended in the delivery of a singleton term pregnancy. The second case combined interstitial and intrauterine pregnancies after bilateral tubal ligation for hydrosalpinges followed by in vitro fertilization and frozen embryo transfer. The possibility of heterotopic pregnancy after bilateral total salpingectomy/tubal ligation, although extremely rare, should also be considered by gynecologists when they treat an in vitro fertilization patient even though an intrauterine pregnancy has been confirmed.

Spontaneous ectopic tubal pregnancy after laparoscopic tubal sterilisation by segmental isthmic partial salpingectomy

A 33-year-old woman with a history of tubal sterilisation, presented to our gynaecological emergency unit with acute abdominal pain and signs of peritonism. The first day of her last menstruation occurred 4 weeks and 4 days before. Urine pregnancy test was positive and transvaginal ultrasound revealed an empty uterus with a heterogeneous mass below the right ovary. We performed a laparoscopy, which confirmed a previous isthmic partial salpingectomy and the presence of an ectopic pregnancy in the right distal remnant tube. Total salpingectomy of the remnant parts of the tube was performed and the postoperative course was uneventful.

Contralateral ovarian pregnancy after single tubal recanalisation

Ovarian pregnancy accounts for less than 3% of all ectopic pregnancies. A 30-year-old who had undergone right tubal reanastomosis seven months prior presented with pain abdomen and spotting. Her last menstrual period was 30 days prior. Examination revealed stable vitals, tenderness and shifting dullness per abdomen, fullness in the pouch of Douglas, a tender left adnexal mass and normal size uterus. Urine pregnancy test was positive. Culdocentesis revealed blood. A heteroechoic 3 × 3.2 × 3.1 cm left adnexal mass and free fluid were detected on ultrasound. There was no intrauterine gestational sac. On laparotomy 800 mL of hemoperitoneum was present. There was no evidence of tubal pregnancy. Left ovary had a 3 × 5 cm hemorrhagic mass. Partial ovariectomy was done and histopathology revealed ovarian pregnancy. This is the first reported case of an ovarian pregnancy occurring after tubal recanalisation. After successful tubal recanalisation procedure, altered motility of the reconstructed tube may cause expulsion of fertilized ovum into the peritoneal cavity and contralateral ovarian implantation.