title: [Vasa previa: Of the diagnosis to neonatal prognosis].
abstract: Vasa previa is a rare complication of pregnancy (1/2000 to 1/6000) with a high fetal mortality rate (75 to 100%). We will discuss two case reports of vasa previa: the first was diagnosed before labor, while the second was during delivery. In the first case, the diagnosis of vasa previa was confirmed by a transvaginal ultrasound and color doppler, while the second case involved late diagnosis during delivery and after gross examination of the placenta. Risk factors for vasa previa are: low-lying placenta, bilobed or succenturiate lobed placenta, velamentous and in vitro fertilization (IVF). Antenatal diagnosis of vasa previa is crucial because it allows for prophylactic caesarean section and prevents severe Benckiser's hemorrhage responsible for a very high neonatal mortality.
authors.affiliation: Service de gynécologie et d'obstétrique, HUS-CMCO, Strasbourg, 19, rue Louis-Pasteur, BP 120, 67300 Schiltigheim, France. Electronic address: germain.aissi@wanadoo.fr.
authors.forename: G
authors.initials: G
authors.lastname: Aissi
authors.forename: N
authors.initials: N
authors.lastname: Sananes
authors.forename: M
authors.initials: M
authors.lastname: Veujoz
authors.forename: A
authors.initials: A
authors.lastname: Felder
authors.forename: S M
authors.initials: SM
authors.lastname: Kasbaoui
authors.forename: N-T
authors.initials: NT
authors.lastname: Trieu
authors.forename: R
authors.initials: R
authors.lastname: Favre
authors.forename: I
authors.initials: I
authors.lastname: Nisand
mesh_terms: D000328:Adult; D002585:Cesarean Section; D036861:Delivery, Obstetric; D005260:Female; D005307:Fertilization in Vitro / Q000009:adverse effects; D006470:Hemorrhage / Q000517:prevention & control; D006801:Humans; D007231:Infant, Newborn; D010920:Placenta / Q000473:pathology; D011247:Pregnancy; D011296:Prenatal Diagnosis; D011379:Prognosis; D012307:Risk Factors; D016216:Ultrasonography, Prenatal; D055949:Vasa Previa / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology
keywords: Benckiser's hemorrhage; Bilobed placenta; Cesarean section; Color Doppler; Césarienne; Doppler couleur; Grossesse; Hémorragie de Benckiser; Insertion vélamenteuse du cordon ombilical; Mortalité néonatale; Neonatal mortality; Placenta bipartita; Pregnancy; Transvaginal ultrasound; Vasa previa; Vasa prævia; Velamentous insertion of the umbilical cord; Échographie endovaginale