title: Heterotopic pregnancy associated with assisted reproductive technology.
abstract: 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.
authors: Department of Obstetrics and Gynecology, St. Francis Hospital, Santa Barbara, CA.
authors: F R
authors: FR
authors: Gamberdella
authors: R P
authors: RP
authors: Marrs
mesh_terms: D000028:Abortion, Induced; D000328:Adult; D000649:Amniocentesis; D006063:Chorionic Gonadotropin / Q000097:blood; D018997:Chorionic Gonadotropin, beta Subunit, Human; D004314:Down Syndrome / Q000175:diagnosis; D005260:Female; D005307:Fertilization in Vitro; D005315:Fetal Diseases / Q000175:diagnosis; D015181:Gamete Intrafallopian Transfer; D006801:Humans; D010446:Peptide Fragments / Q000097:blood; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011274:Pregnancy, Tubal / Q000175:diagnosis / Q000209:etiology*; D011374:Progesterone / Q000097:blood; D012099:Reproductive Techniques / Q000009:adverse effects*; D012307:Risk Factors; D014463:Ultrasonography
chemical_list: D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments; D011374:Progesterone