Congenitally Corrected Transposition of the Great Arteries (CC-TGA)

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Congenitally corrected-transposition of the Great Arteries

Above. Congenitally corrected-transposition of the Great Arteries (CC-TGA)

Summary for Dextro-transposition of the Great Arteries (D-TGA) and Congenitally Corrected-Transpostion of the Great Arteries (CC-TGA)

Note the summary includes both D-TGA and CC-TGA. Details for CC-TGA are provided in the topics in the upper box to the right, while details for D-TGA are given in that separate chapter.

Fetal Heart Transposition of the Great Arteries

Congenitally Corrected Transposition of the Great Arteries (CC-TGA)

Congenitally corrected transposition of the great arteries (CC–TGA).

key indicators to the right ventricular position CC-TGACongenitally corrected transposition of the great arteries

Above. Congenitally corrected transposition of the great arteries (CC–TGA). Note the cardiac apex points to the left. The morphologic RV (right ventricle) is on the left side while the LA (left atrium, nearest the spine) and RA (right atrium) are in their normal locations. The morphologic LV (left ventricle) is on the fetal right side. One of the key indicators to the right ventricular position on the left side is the location of the TV (tricuspid valve) which is displaced towards the apex.

3.cctga.ax.vcongenitally corrected transposition of the great arteries (CC–TGA)

Above. Congenitally corrected transposition of the great arteries (CC–TGA). Note the cardiac apex again points to the left. The morphologic RV (right ventricle) is on the left side while the LA (left atrium, nearest the spine) and RA (right atrium) are in their normal locations. The morphologic RV (right ventricle) is defined by the chordae tendineae which attach near the apex. The morphologic LV (left ventricle) is on the fetal right side.

left pulmonary artery and right pulmonary arteryfetal PA pulmonary artery

Above. Congenitally corrected transposition of the great arteries (CC–TGA). Again note the RV (right ventricle) is on the fetal left side and the LV (left ventricle) is on the fetal right side. The PA (pulmonary artery) is transposed and arises from the LV (left ventricle). The PA (pulmonary artery) is further defined by its division into the LPA and RPA respectively (left pulmonary artery and right pulmonary artery).

7.cctga.ao.rvfetal AO (aorta) is transposed

Above. Congenitally corrected transposition of the great arteries (CC–TGA). Note the IVS (interventricular septum) separating the LV (left ventricle) from the right ventricle. The AO (aorta) is transposed and is arising from the right ventricle. Note the AV (aortic valve).

fetal aortic valveimage of infant great arteries (CC–TGA)

Above. Congenitally corrected transposition of the great arteries (CC–TGA). Another view of the RV (right ventricle), the aortic valve, and the AO (aorta) arising from the RV (right ventricle).

fetal morphologic LV (left ventricle)cctga

Above. Congenitally corrected transposition of the great arteries (CC–TGA). Note the relationships between the normal location of the LA (left atrium) which is nearest to the fetal spine and the RA (right atrium). The morphologic RV (right ventricle) and morphologic LV (left ventricle) are transposed. In addition, the pulmonary artery arises from the LV and the aorta arises from the RV.