11.11 Transposition of the Great Arteries and Truncus Arteriosus

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 You are listening to Hu Said: Cardiology Board Review Series (2024-2025 Season) Please subscribe, rate, and support the channel! Ads help keep materials free for everyone. More MedEd resources available at ⁠www.rueyhu.com⁠ Updates at Twitter/X: ⁠@Ruey_Hu⁠