Abstract:
Objective To explore the clinical value of transabdominal ultrasound combined with transvaginal ultrasound in prenatal diagnosis of vasa previa.
Methods Fifty-four women who underwent cesarean section due to suspected vasa previa at Beijing Obstetrics and Gynecology Hospital from January 2018 to December 2019 were analyzed retrospectively. Taking the placenta examination results after operation as the gold standard, the results of prenatal transabdominal ultrasound combined with transvaginal ultrasound were analyzed, and its sensitivity, specificity, and accuracy were calculated.
Results Among the 54 patients, 47 were diagnosed with vasa previa by transabdominal ultrasound combined with transvaginal ultrasonography, including three cases of misdiagnosis and two cases of missed diagnosis, 5 were operated because of suspected clinical bleeding, in whom both ultrasound and postoperative examination revealed no vasa previa. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of transabdominal ultrasound combined with transvaginal ultrasound in the diagnosis of vasa previa were 95.7% (44/46), 62.5% (5/8), 93.6% (44/47), 71.4% (5/7), and 90.1% (49/54), respectively.
Conclusion In prenatal diagnosis of vasa previa, the combined application of transabdominal ultrasound and transvaginal ultrasound can provide more diagnostic information, reduce interference, and make the diagnosis more accurate, which is worthy of clinical promotion.
Key words:
Vasa previa,
Ultrasonography, prenatal,
Transvaginal ultrasound,
Transabdominal ultrasound
Na Liang, Qingqing Wu, Song Yue, Yinghua Xuan, Lijuan Sun. Clinical value of transabdominal ultrasound combined with transvaginal ultrasound in diagnosis of vasa previa[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2020, 17(06): 514-517.