Evidence from Ultrasonography in Obstetrics and Gynaecology by Peter W. Callen, Professor of Radiology, Obstetrics, Gynaecology, and Reproductive Sciences, University of California School of Medicine, San Francisco, California, USA 4th edition. …..Page no. 414….3rd paragraph… Cardiac defects coupled with complete atrioventricular block were present in eight fetuses; in this group, there were seven prenatal or neonatal deaths. The prognosis for fetal survival appears to be poor in the presence of structural abnormalities coupled with atrioventricular regurgitation, complete heart block, or fetal hydrops. ..contd..
