title: Assessment of uterine circulation in ectopic pregnancy by transvaginal color Doppler.
abstract: OBJECTIVE
  The aim of our study was to determine the effect of abnormal implantation on uterine circulation and to evaluate whether the assessment of uterinal blood flow can provide additional information for the diagnosis of tubal pregnancies.
  
  
  METHODS
  Forty-nine patients with ectopic pregnancy were examined by transvaginal color Doppler immediately before surgery. Resistance and pulsatility indices of blood flow in the uterine and tubal arteries were measured.
  
  
  RESULTS
  The blood flow parameters of the uterine and tubal arteries did not change with gestational age. There was a significant increase in blood flow on the side with the tubal gestation. Differences between sides were higher in the tubal arteries than in the main uterine arteries and showed no dependence on gestational age.
  
  
  CONCLUSIONS
  The abnormal implantation and tubal trophoblast invasion in ectopic pregnancy (EP) can cause more marked blood flow changes in the adjacent supplying vessels than in the main uterine arteries.
authors.affiliation: First Department of Obstetrics and Gynecology, Semmelweis University, Baross Utca 27, P.O. Box 104, H-1442, Budapest, Hungary. szabo@noil.sote.hu
authors.forename: István
authors.initials: I
authors.lastname: Szabó
authors.forename: László
authors.initials: L
authors.lastname: Csabay
authors.forename: Zorán
authors.initials: Z
authors.lastname: Belics
authors.forename: Tibor
authors.initials: T
authors.lastname: Fekete
authors.forename: Zoltán
authors.initials: Z
authors.lastname: Papp
mesh_terms: D000293:Adolescent; D000328:Adult; D001783:Blood Flow Velocity / Q000502:physiology; D005187:Fallopian Tubes / Q000098:blood supply; D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000097:blood / Q000000981:diagnostic imaging*; D012039:Regional Blood Flow / Q000502:physiology; D018615:Ultrasonography, Doppler, Color; D016216:Ultrasonography, Prenatal; D014599:Uterus / Q000098:blood supply*