血管前置的产前超声诊断研究

目的 探讨血管前置产前超声诊断价值.方法回顾性分析38例妊娠合并血管前置孕妇产前超声声像图表现并追踪其妊娠结局.结果 产前超声共检出血管前置36例,漏诊2例,血管前置的产前超声检出率为94.7%(36/38),发生率为0.03%(38/141 568).产前超声检出的36例中,中孕期诊断30例(83.3%,30/36),晚孕期诊断6例(16.7%,6/36).经腹超声检查诊断的28例(77.8%,28/36),需进一步经会阴或经阴道超声检查的8例(22.8%,8/36).产前超声诊断的36例中,35例行择期剖宫产术生产并证实,无1例发生围产期死亡,1例因合并其他结构畸形引产处理.产前超声漏诊的2例均于阴道分娩时发生大出血并胎儿死亡.结论 中孕期是超声诊断血管前置的较佳时期.经腹超声检查是诊断血管前置的常规检查方法,对经腹超声检查宫颈内口不满意者,需行经会阴或经阴道超声检查排除血管前置.产前超声诊断血管前置并于临产前采取剖宫产处理能有效避免不良结局的发生.

Diagnosis of vasa previa by prenatal ultrasound screening

Objective To explore value for prenatal ultrasound diagnosis of vasa previa.Methods A total of 38 cases of vasa previa were retrospectively analysed with prenatal ultrasound sonogram features.Results Thirty-six cases of vasa previa patients were detected by prenatal ultrasound and 2 cases were misdiagnosed.The prenatal ultrasound detection rate of vasa previa was 94.7%(36/38).The incidence rate of vasa previa was 0.03%(38/141 568).Of 36 cases vasa previa patients detected by prenatal ultrasound,30 cases (83...