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Tetralogy of Fallot in the fetus: findings at targeted sonography
Author(s) -
Yoo S.J.,
Lee Y.H.,
Kim E. S.,
Ryu H. M.,
Kim M. Y.,
Yang J. H.,
Chun Y. K.,
Hong S. R.
Publication year - 1999
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.1999.14010029.x
Subject(s) - tetralogy of fallot , medicine , autopsy , ductus arteriosus , ventricular outflow tract , abnormality , fetus , cardiology , radiology , heart disease , pregnancy , psychiatry , biology , genetics
Objectives To evaluate the findings of tetralogy of Fallot in various fetal sonographic views. Methods We reviewed the fetal sonograms and medical records of 20 fetuses with prenatal diagnosis of tetralogy of Fallot. We analyzed the indications for targeted sonography, the abnormalities seen in various sonographic views, the postnatal echocardiographic and angiographic findings and autopsy findings. Results The most common indication for targeted sonography was an abnormal ( n = 12) or inadequate ( n = 3) finding on sonographic screening in which the abnormality was most frequently found on the three‐vessel view ( n = 9). The key pathological features of tetralogy of Fallot were uniformly demonstrated in the ventricular outflow tract, three‐vessel and short‐axis views. The ductus arteriosus was small in 70% of cases and not identifiable in the remaining fetuses. In three of six fetuses with no identifiable ductus, the ductus was shown to be absent at autopsy. The direction of ductal flow was variable. Conclusion The key features of tetralogy of Fallot were always demonstrable in the ventricular outflow tract, three‐vessel and short‐axis views. The most common reason for referral was the abnormal three‐vessel view. Copyright © 1999 International Society of Ultrasound in Obstetrics and Gynecology