[The ananlysis of relationship between fetal stress and blood dynamics in fetal vessels and placental bed vessels].
OBJECTIVE
To evaluate the value of color Doppler ultrasound examination in perinatal monitoring.


METHODS
Doppler ultrasound results of 22 cases with fetal stress and 6 cases with perinatal mortality were retrospectively analyzed, and compared that of 555 normal pregnancies with same gestational age (36 to 40 weeks) using Ultramark 9 HDI color Doppler ultrasound.


RESULTS
The resistance of fetal umbilical artery (FUA), fetal renal artery (FRA) and placental bed artery (PBA) in fetal stress group were significantly higher than that in normal pregnant group; there were no changes of resistance in middle cerebral artery (MCA). In perinatal mortality group, the resistance of FUA, FRA and PBA were the highest, the resistance of MCA was the lowest, and end-diastolic flow in FUA and FRA were absent or reverse.


CONCLUSIONS
The results showed that fetal and placental flow dynamics study examined by color Doppler ultrasound is an effective method in the assessment of fetal well-being.
Chang
C
C
Obstetric and Gynecolgic Hospital of Shanghai Medical University.
Zhang
J
J
D000328:Adult; D001158:Arteries / Q000503:physiopathology; D005260:Female; D005316:Fetal Distress / Q000503:physiopathology*; D006439:Hemodynamics; D006801:Humans; D010920:Placenta / Q000098:blood supply*; D011247:Pregnancy; D012189:Retrospective Studies; D018615:Ultrasonography, Doppler, Color; D016216:Ultrasonography, Prenatal; D014469:Umbilical Arteries / Q000503:physiopathology*; D014655:Vascular Resistance