Liang R I, Wang P, Chang F M, Chang C H, Yu C H
Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, Tainan, Taiwan.
Ultrasound Obstet Gynecol. 1998 Mar;11(3):214-8. doi: 10.1046/j.1469-0705.1998.11030214.x.
Although fetal mediastinal teratomas may result in respiratory distress in the neonatal period and lead to perinatal mortality, they are rarely diagnosed prenatally. Furthermore, their impact on fetal hemodynamics has never been described. We report a case of a large fetal mediastinal teratoma prenatally visualized at 38 weeks' gestation by both two- and three- dimensional ultrasound. We also describe the associated changes in the Doppler flow velocimetry, namely, a decrease in cardiac output, prolonged acceleration time in the pulmonary artery and an increase in the umbilical artery S/D ratio. The baby was well at the 5-month follow-up after an operation in the neonatal period. From our case, we believe that accurate prenatal diagnosis and assessment by two- and three-dimensional ultrasound as well as Doppler flow velocimetry may contribute to a better perinatal outcome.
尽管胎儿纵隔畸胎瘤可能在新生儿期导致呼吸窘迫并导致围产期死亡，但产前很少被诊断出来。此外，其对胎儿血流动力学的影响从未被描述过。我们报告一例在妊娠38周时通过二维和三维超声产前可视化的巨大胎儿纵隔畸胎瘤病例。我们还描述了多普勒血流速度测定的相关变化，即心输出量减少、肺动脉加速时间延长和脐动脉S/D比值增加。该婴儿在新生儿期手术后5个月的随访中情况良好。从我们的病例来看，我们认为通过二维和三维超声以及多普勒血流速度测定进行准确的产前诊断和评估可能有助于获得更好的围产期结局。
