|
KMID : 0374919930140040583
|
|
Inje Medical Journal
1993 Volume.14 No. 4 p.583 ~ p.586
|
|
|
Cerebral and Umbilical Velocimetry in the Postterm Pregnancy
|
|
전명권:Jeon Myung-Kwon
조용균:Cho Yong-Kyoon/최훈:Choi Hoon/이홍균:Lee Hong-Kyoon
|
|
|
Abstract
|
|
|
|
To assess alteration in vascular resistance as measured by doppler ultrasound in the postterm fetus, 40 postterm (>287 days gestation) patients were studied. Velocity recordings were obtained from the internal carotid artery and umbilical artery to calculate the systolic to diastolic(S/D) ratio. Patients were divided into two group. Group 1 consisted 29 patients with normal antepartum fetal surveillance that included reactive nonstress test and amniotic fluid index(using the four-quardrant technique) equal to or greater than 5cm. Group 2 consisted of 11 patients with antepartum comppromise on the antepartum fetal surveillance tests. There was significantly greater(p<.05) morbidity in group 2 compared to group 1, but no significant differences in the umbilical S/D ratio in the two groups. However, in group 2, 5(45.5%) patients had abnormally low cerebral S/D ratios(<3.5) and 6(54.5%) patients had abnormally low cerebral placental resistance ratios(<1), compared to only 1(3.5%) and 2(6.0%) for those respective ratios in group 1(p<.05). In the uncompromised postterm fetus, cerebral vascular resistance(S/D retio<3.5) and cerebral placental resistance ratio(<1) are associated with antepartum compromise and adverse pregnancy outcome in the postterm fetus and may be a compensatory brain-sparing effect in response to fetal stress.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|