Computed Tomography Cardiac Veins Evaluation in Congenital Transposition of Great Vessels Prior to Cardiac Resynchronization Therapy (Crt)

Adult patients with transposition of great vessels are often candidates for cardiac resynchronization therapy (CRT). Cardiac vein anatomy is of crucial importance in planning optimal CRT therapy. Cardiac veins are very variable. In congenitally corrected transposition of great vessels coronary arteries have an unusual course but coronary veins although much less studied have much more varieties. In such cases cardiac computed tomography (CT) might offer important information prior to electrophysiological procedures. The objective of this study is to present a series of patients with transposition of the great arteries (TGA) both congenitally corrected TGA and D TGA in which imaging was used to help planning placement of leads for CRT. CT findings are thoroughly described as well as the consequent interventional procedure.