[Clinical characteristics analysis of heterotopic cervical pregnancy]

Objective: To investigate the clinical characteristics of heterotopic cervical pregnancy (HCP). Methods: A retrospective analysis was conducted based on the general clinical data, assisted reproductive technology (ART) data, diagnosis and treatment data, and pregnancy outcomes of 17 patients diagnosed with HCP who received ART at the Reproductive Medicine Center of Peking University Third Hospital from January 2011 to April 2022. Results: The age of 17 HCP patients was (34.2±1.5) years, all of whom occurred after the application of ART; Among them, 11 cases had a history of uterine cavity operation. All 17 patients had vaginal bleeding, with only 1 case accompanied by abdominal pain. The gestational age at the diagnosis of HCP was [6⁺² (5⁺²-6⁺⁴)] weeks. Two patients underwent conservative observation and were closely followed up. Both of them had intrauterine pregnancy until full-term and underwent cesarean section; One patient underwent ultrasound-guided cervical pregnancy reduction surgery, resulting in miscarriage due to premature rupture of membranes at 18⁺¹ weeks of intrauterine pregnancy; One patient underwent ultrasound-guided cervical pregnancy reduction surgery, followed by uterine artery embolization, hysteroscopy, removal of cervical pregnancy lesions, and curettage due to excessive bleeding; One patient underwent uterine artery embolization, hysteroscopy, cervical pregnancy lesion clearance, and curettage due to excessive vaginal bleeding; One patient underwent hysteroscopy examination, cervical pregnancy lesion removal surgery, and uterine curettage due to embryo arrest during intrauterine pregnancy; 11 cases underwent ultrasound-guided cervical pregnancy lesion clearance surgery, all of which resulted in live births. Among the 13 delivery patients, 4 cases were premature and 9 cases were full-term; 5 cases of vaginal delivery and 8 cases of cesarean section. Conclusions: The most common clinical manifestation of HCP is vaginal bleeding. Ultrasound guided cervical pregnancy lesion clearance surgery is safe and feasible, and with good pregnancy outcomes.