<P> In dextro - Transposition of the great arteries (dextro - TGA) deoxygenated blood from the right heart is pumped immediately through the aorta and circulated to the body and the heart itself, bypassing the lungs altogether, while the left heart pumps oxygenated blood continuously back into the lungs through the pulmonary artery . In effect, two separate "circular" (parallel) circulatory systems are created . It is called a cyanotic congenital heart defect (CHD) because the newborn infant turns blue from lack of oxygen . </P> <P> Levo - Transposition of the great arteries is an acyanotic heart defect in which the primary arteries are transposed, with the aorta anterior and to the left of the pulmonary artery, and the morphological left and right ventricles with their corresponding atrioventricular valves are also transposed . The systemic and the pulmonary circulation are connected . Complications arise from the fact that the right ventricle, which is adapted for pumping blood into the low pressure pulmonary circulation, is being tasked with pumping blood at a much higher pressure against the high resistance of the systemic circulation . </P> <P> In many cases, TGV is accompanied by other heart defects, the most common type being intracardiac shunts such as atrial septal defect including patent foramen ovale, ventricular septal defect, and patent ductus arteriosus . Stenosis, or other defects, of valves and / or vessels may also be present . </P> <P> When no other heart defects are present it is called' simple' TGV; when other defects are present it is called' complex' TGV . </P>

Which condition is consistent with the cardiac defect of transposition of the great vessels