الفهرس 
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Abstract
Aim: We aimed to assess the accuracy and predictive value of fetal cardiac screening for congenital heart diseases (CHD) at 18-22 gestational weeks in high-risk patients
Methods: In this study of fetal cardiac screening, four-chamber view, three-vessel view, outflow tracts followed by Doppler were recorded by obstetricians at 18–22 gestational weeks. A total of 438 patients whom fetuses were scheduled for delivery at our hospital were included.
Results: Forty-four newborns were born with CHD (10.9%). The prenatal detection rate of CHD was (72.7%). Although 80% of structural abnormalities were diagnosed antenatally, only 44.4 % of valvular abnormalities were diagnosed.
Conclusion: Detailed fetal heart scan performed by skilled obstetricians had a high detection rate for structural rather than valvular CHD in high-risk populations.
The integration of this scan with multiple appropriate cardiac views into a routine second-trimester scan may improve the detection rate of fetal CHD and give a chance for parental counseling.