title: [Transvaginal endosonography and Doppler study in embryo-fetal hemodynamic assessment in the first pregnancy trimester].
abstract: Transvaginal endosonography is now currently used in obstetrics and gynecology practice and seems a promising tool for essential studies on first trimester pregnancy. High-resolution and duplex/color Doppler in vaginal probes have brought to light new chances for early investigations on embryonic-fetal haemodynamics. We report our experience in this field, together with a review of the literature, giving an overview on embryonic-fetal cardiovascular haemodynamics studied by this approach. Blood flow patterns of intracardiac flows as extra-cardiac circulation during first trimester pregnancy are reported.
authors.affiliation: Departamento de Obstetrícia e Ginecologia, Hospital de S. João, Faculdade de Medicina do Porto.
authors.forename: N
authors.initials: N
authors.lastname: Montenegro
authors.forename: J C
authors.initials: JC
authors.lastname: Areias
authors.forename: L P
authors.initials: LP
authors.lastname: Leite
mesh_terms: D004622:Embryo, Mammalian / Q000502:physiology*; D005260:Female; D005318:Fetal Heart / Q000000981:diagnostic imaging / Q000502:physiology; D005333:Fetus / Q000502:physiology*; D006340:Heart Rate, Fetal; D006439:Hemodynamics; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011446:Prospective Studies; D016216:Ultrasonography, Prenatal / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D014621:Vagina
vernacular_title: Endo-sonografia e Doppler transvaginal na avaliação hemodinâmica embrio-fetal no 1.o trimestre da gravidez.