11.11 Transposition of the Great Arteries and Truncus Arteriosus
Description
In this episode, we review transposition of the great arteries (TGA), including the physiology, imaging, repair strategies, and potential complications. What is the difference between D-TGA (complete TGA) and L-TGA (congenitally corrected TGA), and why are they named D- and L-? How does blood flow through the heart in D-TGA, and why is a shunt necessary for survival? What imaging features help identify what is serving as a right ventricle versus a left ventricle? What do the atrial switch (Mustard, Senning), arterial switch (Jatene), and Rastelli surgeries entail, and what are their complications? In what subset of D-TGA patients is the Rastelli surgery indicated? How can you distinguish truncus arteriosus from tetralogy of Fallot with pulmonary atresia on imaging? Tune in for answers to these questions.
Difficulty Level: Advanced
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