[Color and duplex Dopplerometry in the prenatal diagnosis of congenital developmental defects].
OBJECTIVE
Impact of Doppler system in detection of congenital malformations during prenatal diagnosis.


METHODS
Prospective clinical study.


METHODS
Department of Medical Genetics and Foetal Medicine, Department of Obstetrics and Gynaecology University Hospital Olomouc.


METHODS
In 34 pregnancies with prenataly diagnosed congenital malformation the umbilical artery pulsatility index (PI) and middle cerebral artery PI were assessed.


RESULTS
Abnormal Doppler patterns were obtained in 18 patients (chromosomal abnormalities--3x, gastroschisis--2x, diaphragmatic hernia--2x, urinary tract abnormalities--2x, internal hydrocephalus--4x, microcephaly, anencephaly, encephalocoele, non-immune hydrops of the fetus, thoracopagus--1x).


CONCLUSIONS
In accordance to the literature abnormal Doppler patterns in umbilical artery were obtained in trisomy 21 foetuses. The use of umbilical artery PI or ductus venosus PI in the first trimester of pregnancy as an additional parameter for screening purposes needs to be confirmed by further investigation (needs to be further explored). Pulsed Doppler waveform analysis gives a possibility to appreciate the functional state of the foetus. In our patient group abnormal Doppler patterns were found in such substantial congenital malformations that they indicated pregnancy termination themselves. On the other hand in several similar morphological defects normal Doppler patterns were found. In these cases, in regard to the type of malformation, the Doppler appreciation of foetal functional state was not prognostically significant.
Porodnicko-gynekologická klinika FN a LF UP Olomouc.
M
M
L'ubuský
J
J
Santavý
P
P
Polák
J
J
Hyjánek
D000293:Adolescent; D000328:Adult; D000013:Congenital Abnormalities / Q000000981:diagnostic imaging*; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging; D006801:Humans; D020768:Middle Cerebral Artery / Q000000981:diagnostic imaging; D011247:Pregnancy; D018615:Ultrasonography, Doppler, Color; D018616:Ultrasonography, Doppler, Duplex; D016216:Ultrasonography, Prenatal; D014469:Umbilical Arteries / Q000000981:diagnostic imaging