Transposition of the great arteries (TGA) is a congenital cardiac defect caused by an embryological discordance between the aorta and pulmonary trunk or by both atrioventricular and ventriculoarterial discordance—a condition often termed "double discordance."

2025年1月4日 · Transposition of the great arteries (TGA), also known as transposition of the great vessels (TGV), is the most common cyanotic congenital cardiac anomal y presenting during the newborn period, with cyanosis in the first 24 hours of life.

Transposition of the great arteries (TGA) is the most common cyanotic cardiac lesion in newborns, accounting for 5-10% of all congenital heart disease (CHD). The malformation occurs in about 20-30 per 100,000 live births and is seen more often in male babies. Without surgical correction, TGA is almost universally fatal during the first year of ...

Transposition of the great arteries (D-TGA) is a conotruncal abnormality characterized by discordant ventricular-arterial connections. In D-TGA, the aorta arises from the right ventricle and pulmonary artery arises from the left ventricle.

TGA because of its widespread availability and portability. Transthoracic echocardiography (TTE) with two-dimensional (2D) and Doppler echocardiography provides comprehensive anatomic and hemodynamic evaluation in the majority of patients with TGA and is usually the only modality required for preoperative eval-uation.

2016年3月14日 · Axial views of the heart demonstrate the orientation of heart in thorax, ventricular arrangement and the atrioventricular valves position in normal, repaired transposition of great arteries (TGA), and congenitally corrected TGA (ccTGA). The cardiac crux has a mirror image appearance in ccTGA.

Transposition of the great arteries (TGA) is a conotruncal anomaly where the ventriculo-arterial connections are discordant; the aorta aligns with the right ventricle (RV) and the pulmonary artery aligns with the left ventricle (LV) (Figs 1 and 2).

Transposition of the great arteries (TGA, simple transposition of the great arteries, or D-transposition of the great arteries) is a common cause of prostaglandin-dependent cyanosis and the most common cause of cyanosis in the newborn. It occurs when there is ventriculoarterial discordance and there is recirculation of pulmonary and systemic

2025年2月5日 · TGA refers to the discordant ventriculo-arterial connection, where the aorta arises from the morphological RV, and the pulmonary artery arises from the morphological LV. The diagnosis and evaluation of both types of TGA (d-TGA and l-TGA) are covered in this chapter.

Transposition of the great arteries (TGA) is a congenital conotruncal abnormality characterized by discordant connections between the ventricles and great arteries, with the aorta originating from the right ventricle (RV), and the pulmonary artery (PA) originating from the left ventricle (LV).