Abstract
Seven infants with d-Transposition of Great Vessels(d-TGV) were evaluated by cross-sectional echocardiography(C Echo). The ages ranged 2 days to 7 months. Five patients(pts) were examined pre-and post-atrial septostomy(AS) by balloon or surgical technique and 2 only after AS. All had cardiac catheterization(CC). The atrial septum was examined by a 60° angle mechanical sector scanner. Intact atrial septal image was shown as a thick, solid line from the upper margin of the ventricular septum ending at the posterior wall dividing two atria. The fossa ovalis showed as a concave area from left side. Prior to AS, all pts had a patent foramen ovale, but their C Echo results were that of intact atrial septum. C Echo after the AS showed a large defect. The lower and upper margins of atrial septum were visualized. The diameter of the defect was 7-12 mm. Contrast C Echo from both atria was done during CC using saline. Prior to AS, none or small amount of contrast passed the foramen ovale. After AS , large amount entered from one atrium to another freely. Cross-sectional echocardiography is important for evaluation of the size of atrial septal defect in d-TGV since the atrial level is the critical site of mixing. Its capability of quantitating the size of defect is valuable in those with previous balloon atrial septostomy.
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Chung, K., Chernoff, H. & Kreidberg, M. 91 CROSS-SECTIONAL ECHOCARDIOGRAPHY OF ATRIAL SEPTUM IN D-TRANSPOSITION OF GREAT VESSELS. Pediatr Res 12 (Suppl 4), 379 (1978). https://doi.org/10.1203/00006450-197804001-00096
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DOI: https://doi.org/10.1203/00006450-197804001-00096