title: [Heterotopic pregnancy and its occurrence in assisted reproduction].
abstract: OBJECTIVE
  To assess the incidence of heterotopic pregnancy after infertility treatment using the technology of assisted reproduction.
  
  
  METHODS
  A prospective study of 618 women who became clinically pregnant following assisted reproduction technology (ART) procedures.
  
  
  METHODS
  Sanatorium Pronatal, Na dlouhé mezi 4/12, 147 00 Praha 4-Hodkovicky.
  
  
  METHODS
  Study group consists of clinical pregnancies conceived after ART procedures within the period from January 1, 1997 until June 30, 1998. A condition to be included in survey group was that there was a gestation sac detected by ultrasound or histological confirmation of ectopic pregnancy.
  
  
  RESULTS
  Six-hundred-eighteen clinical pregnancies resulted and 23 of the pregnancies were ectopic gestations (3.7%). Seven out of the 23 (30.5%) ectopic pregnancies were heterotopic. Thus heterotopic pregnancy rate after ART was, 1.14% (1 in 88).
  
  
  CONCLUSIONS
  The incidence of heterotopic pregnancy following assisted reproduction technique is relatively frequent. This condition represents a live-threatening complications of pregnancy. The prognosis for intrauterine gestation in case of heterotopic pregnancy is usually good. About 78% delivered living child at term.
authors.affiliation: Sanatorium Pronatal, Praha.
authors.forename: J
authors.initials: J
authors.lastname: Hulvert
authors.forename: T
authors.initials: T
authors.lastname: Mardesic
authors.forename: J
authors.initials: J
authors.lastname: Voboril
authors.forename: P
authors.initials: P
authors.lastname: Müller
mesh_terms: D005260:Female; D005307:Fertilization in Vitro / Q000009:adverse effects*; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging / Q000209:etiology*; D016216:Ultrasonography, Prenatal