Dextro-transposition of the great arteries classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S. [2]; Cafer Zorkun, M.D., Ph.D. [3]; Keri Shafer, M.D. [4]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [5]

Overview

d-TGA is often accompanied by other heart defects, the most common type being intracardiac shunts such as atrial septal defect (ASD) including patent foramen ovale (PFO), ventricular septal defect (VSD), and patent ductus arteriosus (PDA). Stenosis of valves or vessels may also be present.

Classification

Simple d-TGA

d-TGA which is not associated with additional cardiac defects.

Complex d-TGA

d-TGA which is associated with other defects.

One of the most common cardiac defects associated with d-TGA is a VSD, which is present in 40% of d-TGA patients. Pulmonary stenosis and a VSD are present in 31% of patients. Although it may seem illogical, complex d-TGA presents better chance of survival and less developmental risks than simple d-TGA, as well as usually requiring fewer invasivepalliative procedures. This is because the left-to-right and bidirectional shunting caused by the defects common to complex d-TGA allow a higher amount of oxygen-rich blood to enter the systemic circulation. However, complex d-TGA may cause a very slight increase to length and risk of the corrective surgery, as most or all other heart defects will normally be repaired at the same time, and the heart becomes "irritated" the more it is manipulated.

Acknowledgements and Initial Contributors to Page

Leida Perez, M.D. nl:Transpositie van de grote vaten Template:WH Template:WS