Fetal growth according to different reference ranges in twin pregnancies with placental insufficiency
Clinics
;
70(12): 816-819, Dec. 2015. tab, graf
Article
in English
| LILACS
| ID: lil-769704
ABSTRACT
The aim of this study was to compare different fetal growth curves in twin pregnancies with severe placental insufficiency. A retrospective cross-sectional analysis of 47 twin pregnancies with absent or reverse end diastolic flow in the umbilical artery of one fetus was performed. Pregnancies with major fetal abnormalities, twin-twin transfusion or three or more fetuses were not included. The estimated fetal weight zeta-scores were calculated for both fetuses (abnormal Doppler and co-twin) according to the following criteria Hadlock, Liao and Araújo. The abdominal circumference zeta-scores were calculated according to Hadlock, Liao, Araújo, Ong and Stirrup. The mean estimates of the zeta-score values were calculated using generalized estimating equation regression analysis. The mean gestational age at inclusion was 27.4±4.7 weeks. The fetal sex and the interaction Doppler findings × criteria correlated significantly with the zeta-score values (p <0.001 for both variables). The estimated fetal weight mean zeta-scores (standard error) according to each criteria were as follows Hadlock - abnormal Doppler -2.98 (0.18), co-twin -1.16 (0.15); Liao - abnormal Doppler -2.89 (0.24), co-twin -0.58 (0.19); and Araújo - abnormal Doppler -3.05 (0.29), co-twin -0.75 (0.18). Values for abdominal circumference were as follows Hadlock - abnormal Doppler -3.14 (0.26), co-twin -1.13 (0.19); Liao - abnormal Doppler -2.63 (0.27), co-twin -0.42 (0.19); Araújo - abnormal Doppler -2.44 (0.22), co-twin -0.71 (0.14); Ong - abnormal Doppler -3.36 (0.34), co-twin -1.48 (0.23); and Stirrup AD -- -2.36 (0.14), co-twin -1.18 (0.10). Sex- and plurality-specific charts should be used in the evaluation of fetal growth in twin pregnancies with placental insufficiency.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Placental Insufficiency
/
Fetal Development
/
Pregnancy, Twin
Type of study:
Observational study
/
Prevalence study
/
Risk factors
Limits:
Adult
/
Female
/
Humans
/
Pregnancy
Language:
English
Journal:
Clinics
Journal subject:
Medicine
Year:
2015
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade de São Paulo/BR
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