孕早、中期人体鱼序列征胎儿超声表现  

Ultrasonographic manifestations of fetal sirenomelia in the first and second trimester

作　　者：王莹莹 栗河舟[1] 李洁[1] 岳丽芳[1] 沈彬[1] WANG Yingying;LI Hezhou;LI Jie;YUE Lifang;SHEN Bin(Department of Ultrasound,the Third Affiliated Hospital of Zhengzhou University,Zhengzhou 450052,China)

机构地区：[1]郑州大学第三附属医院超声科,河南郑州450052

出　　处：《中国医学影像技术》2023年第5期714-717,共4页Chinese Journal of Medical Imaging Technology

基　　金：河南省医学适宜技术推广项目(SYJS2020080)。

摘　　要：目的 观察孕早、中期人体鱼序列征胎儿超声表现。方法 回顾性分析22胎经引产证实的人体鱼序列征胎儿超声表现,对比观察孕早、中期差异。结果 22胎中,9胎于孕早期诊断,超声表现为羊水量正常或略少,胎儿双下肢融合、足缺如或发育不良及单脐动脉起自高位腹主动脉,其中5胎双足并腿畸形、1胎单足并腿畸形,3胎无足并腿畸形,8胎(8/9,88.89%)合并其他结构畸形;13胎于孕中期诊断,超声表现为无羊水或羊水过少,胎儿双下肢融合、单脐动脉起自高位腹主动脉、肾脏发育不良,膀胱均未显示,其中4胎双足并腿畸形、3胎单足并腿畸形,6胎无足并腿畸形,9胎(9/13,69.23%)合并其他结构畸形。结论 人体鱼序列征胎儿孕早、中期典型超声表现包括并腿畸形及单脐动脉起自高位腹主动脉;孕早期羊水充足,为最佳诊断时机。Objective To observe ultrasonographic manifestations of fetal sirenomelia in the first and second trimester.Methods Data of 22 sirenomelia fetuses confirmed with induction of labor were retrospectively analyzed,and the ultrasound findings were comparatively observed between the first and second trimester.Results Among 22 sirenomelia fetuses,9 were diagnosed during the first trimester,and the common ultrasonic manifestations included normal or slightly less amniotic fluid volume,the fusion of lower extremities,abnormal or absent foot structures,and single umbilical artery originated from the high abdominal aorta.Among these 9 fetuses,sympus dipusm,sympus monopus and sympus apus was detected in 5,1 and 3 fetuses,while other structural abnormalities were noticed in 8 fetuses(8/9,88.89%).Fetal sirenomelia was diagnosed in 13 fetuses during the second trimester,and the common ultrasonic manifestations included no amniotic fluid or oligohydramnios,fusion of both lower limbs,single umbilical artery from high abdominal aorta,renal dysplasia and absent bladder.Among these 13 fetuses,sympus dipus,sympus monopus and sympus apus were detected in 4,3 and 6 fetuses,respectively,and with other structural abnormalities were noticed in 9 fetuses(9/13,69.23%).Conclusion The fusion of lower extremities,abnormal or absent foot structures and a single umbilical artery arising high from the abnormal aorta were the specific ultrasound characteristics of sirenomelia in the first and second trimester.The first trimester was the optimal period for diagnosis of fetal sirenomelia since sufficient amniotic fluid.

关 键 词：下肢畸形 先天性 超声检查 产前 

分 类 号：R714.53[医药卫生—妇产科学] R445.1[医药卫生—临床医学]