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EP12.16: A tricky case of fetal TGA without I‐shaped sign
Author(s) -
Yukiko Kawazu
Publication year - 2019
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 - 10.1002/uog.21350
Subject(s) - medicine , sign (mathematics) , fetus , obstetrics , pregnancy , mathematical analysis , mathematics , genetics , biology
Fetal echocardiographic findings The left ventricular outflow and the right ventricular outflow ran in parallel and did not intersect. The vessel originating from the left ventricle was branched to the left and right, and the carotid artery was branched from the vessel originating from the right ventricle. Two vessels were located side by side and there was no I-shaped sign. There was no ventricular septal defect and no pulmonary artery stenosis. From the above observations, I diagnosed TGA (type1). I informed the parents that the fetus had severe congenital cyanotic heart disease requiring intensive care and surgery early in life. Conclusion Immediately after birth, the baby required intensive treatment because of severe pulmonary hypertension and severe cyanosis, and fetal diagnosis was very useful. Fetal TGA without the I-shaped sign is very rare and may not be found during screening. Therefore, it is considered important for the screener to check not only for the I-shaped sign but also whether the ventricular outflow tract is normal. Figure 1. Fourchambers view