Aissi G, Sananes N, Veujoz M, Felder A, Kasbaoui S M, Trieu N-T, Favre R, Nisand I
Service de gynécologie et d'obstétrique, HUS-CMCO, Strasbourg, 19, rue Louis-Pasteur, BP 120, 67300 Schiltigheim, France.
J Gynecol Obstet Biol Reprod (Paris). 2013 Oct;42(6):591-5. doi: 10.1016/j.jgyn.2012.11.011. Epub 2012 Dec 31.
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.
前置血管是一种罕见的妊娠并发症（发生率为1/2000至1/6000），胎儿死亡率很高（75%至100%）。我们将讨论两例前置血管的病例报告：第一例在临产前被诊断出来，而第二例是在分娩期间确诊的。在第一例中，经阴道超声和彩色多普勒检查确诊为前置血管，而第二例是在分娩期间及胎盘大体检查后才得以确诊。前置血管的危险因素包括：前置胎盘、双叶胎盘或副叶胎盘、帆状胎盘以及体外受精（IVF）。前置血管的产前诊断至关重要，因为它可以进行预防性剖宫产，并防止导致极高新生儿死亡率的严重胎盘早剥出血。
