Park Jeong W, Lee Seung M, Kang Hye-S, Shim Soon-S, Jun Jong K
Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea.
Department of Obstetrics and Gynecology, Grace Women's Hospital, Gyeonggi, Republic of Korea.
J Clin Ultrasound. 2019 Nov;47(9):526-530. doi: 10.1002/jcu.22770. Epub 2019 Aug 24.
To asses the occurrence of discrepancies between the Doppler waveforms of the left and right umbilical arteries in their paravesical part in fetuses with absent or reversed end-diastolic flow in the free-floating umbilical cord.
This prospective observational study included pregnant women with fetal growth restriction or twin-to-twin transfusion syndrome. Umbilical arterial Doppler waveforms were obtained from both umbilical arteries in their intra-abdominal paravesical part. Doppler findings were recorded as present end-diastolic flow (PEDF)/absent end-diastolic flow (AEDF); AEDF/AEDF; AEDF/reversed end-diastolic flow (REDF); or REDF/REDF pattern.
There were 49 fetuses with AEDF or REDF at the free-floating umbilical cord. Of these, 20 (40.8%) had a discrepancy in Doppler waveforms between the two umbilical arteries, with 14 (28.6%) showing PEDF/AEDF, 17 (34.7%) AEDF/AEDF, 6 (12.2%) AEDF/REDF, and 12 (24.5%) REDF/REDF pattern.
Doppler waveforms showed discrepancies between the two umbilical arteries in 40.8% of pregnant women with AEDF or REDF in the free-floating umbilical cord. The presence of end-diastolic flow in one umbilical artery cannot exclude the possibility of AEDF in the other.
评估在游离脐带舒张末期血流消失或反向的胎儿中，左右脐动脉膀胱旁部分的多普勒波形之间差异的发生率。
这项前瞻性观察性研究纳入了患有胎儿生长受限或双胎输血综合征的孕妇。从腹内膀胱旁部分的两条脐动脉获取脐动脉多普勒波形。多普勒检查结果记录为舒张末期血流存在（PEDF）/舒张末期血流消失（AEDF）；AEDF/AEDF；AEDF/舒张末期血流反向（REDF）；或REDF/REDF模式。
有49例胎儿在游离脐带处出现AEDF或REDF。其中，20例（40.8%）两条脐动脉的多普勒波形存在差异，14例（28.6%）表现为PEDF/AEDF，17例（34.7%）为AEDF/AEDF，6例（12.2%）为AEDF/REDF，12例（24.5%）为REDF/REDF模式。
在游离脐带出现AEDF或REDF的孕妇中，40.8%的孕妇两条脐动脉的多普勒波形存在差异。一条脐动脉存在舒张末期血流不能排除另一条脐动脉出现AEDF的可能性。
