Gamberdella F R, Marrs R P
Department of Obstetrics and Gynecology, St. Francis Hospital, Santa Barbara, CA.
Am J Obstet Gynecol. 1989 Jun;160(6):1520-2; discussion 1522-4. doi: 10.1016/0002-9378(89)90879-x.
The incidence of heterotopic pregnancy has been reported to be 1 per 30,000 pregnancies. This incidence may be much higher in pregnancies associated with assisted reproductive technology. Intravaginal ultrasonography and the use of quantitative beta-subunit assays of human chorionic gonadotropin should allow early diagnosis and treatment.
据报道，异位妊娠的发生率为每30000例妊娠中有1例。在与辅助生殖技术相关的妊娠中，这一发生率可能要高得多。阴道超声检查以及使用人绒毛膜促性腺激素β亚基定量测定法应能实现早期诊断和治疗。
