Wang Michelle J, Duffy Cassandra R, Oyelese Yinka
Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology Beth Israel Deaconess Medical Center Boston Massachusetts USA.
Harvard Medical School Boston Massachusetts USA.
Australas J Ultrasound Med. 2024 Aug 27;28(1):e12405. doi: 10.1002/ajum.12405. eCollection 2025 Feb.
Vasa previa is a complication of pregnancy, which affects approximately 1:1200 pregnancies, and when undiagnosed prenatally, it can be associated with significant perinatal mortality. This condition is thought to be a sporadic entity without known genetic or familial associations and thus considered to carry a negligible recurrence risk.
We present a case of a 42-year-old gravida 3 para 2 diagnosed on transvaginal ultrasound with a vasa previa at 34 weeks associated with vaginal bleeding, which required an urgent caesarean in a prior spontaneous pregnancy. In the current pregnancy conceived with in vitro fertilisation, she was again diagnosed with a vasa previa at 30 weeks' gestation at transvaginal ultrasound. She ultimately delivered at 37 weeks' gestation via an uncomplicated repeat caesarean.
Patients with vasa previa in one pregnancy may be at risk for recurrence in subsequent pregnancy and thus should be screened in future pregnancies. Further research should be done to explore and identify any risk factors for recurrence of vasa previa.
前置血管是一种妊娠并发症,约1200次妊娠中会出现1例,若产前未诊断出来,可能会导致显著的围产期死亡率。这种情况被认为是一种散发性疾病,不存在已知的遗传或家族关联,因此复发风险可忽略不计。
我们报告一例42岁、孕3产2的孕妇,在孕34周经阴道超声诊断为前置血管,并伴有阴道出血,其前次自然妊娠时需要紧急剖宫产。在此次通过体外受精受孕的妊娠中,孕30周经阴道超声再次诊断为前置血管。她最终在孕37周通过一次无并发症的再次剖宫产分娩。
一次妊娠中出现前置血管的患者在后续妊娠中可能有复发风险,因此在未来妊娠中应进行筛查。应进一步开展研究,以探索和确定前置血管复发的任何风险因素。