Umbilical Artery Doppler Velocimetry During Oxytocin Challenge Test and Its Clinical Significance
- VernacularTitle:催产素激惹试验中胎儿脐动脉血流变化及其临床意义
- Author:
Hui LI
;
Tao SHANG
;
Guang YANG
- Publication Type:Journal Article
- Keywords:
Oxytocin;
Umbilical arteryies;
Blood flow velocity
- From:
Chinese Journal of Perinatal Medicine
1998;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the value of Oxytocin challenge test (OCT) in high-risk pregnancy with abnormal umbilical artery resistance and the clinical significance of performing the umbilical velocimetry during OCT. Methods One hundred and seventy patients with abnormal umbilical artery resistance but maintained forward diastolic flow and 178 patients with normal umbilical blood flow received OCT, umbilical velocimetry was conducted during OCT. If the umbilical artery pulsatility index (PI) increased more than 0.5 during contraction and OCT was positive, cesarean section was performed in the same day, otherwise, vaginal delivery was tried. Results The rate of positive OCT was 45.3% and 10.1% respectively and the rate of positive OCT with umbilical artery PI increasing more than 0.5 was 37.4% and 6.7% respectively in abnormal umbilical artery flow resistance group and normal umbilical artery flow group ( P
