Dextro-transposition of the great arteries electrocardiogram


 * Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S. [mailto:psingh@perfuse.org]; ; Keri Shafer, M.D. [mailto:kshafer@bidmc.harvard.edu]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [mailto:kfeeney@perfuse.org]

Overview
The ECG may be normal in the newborn, but in older patients there may be changes suggestive of right axis deviation and right ventricular hypertrophy.

Electrocardiogram

 * Ocasionally,the ECG is normal in the newborn, but in older patients there is RAD and RVH.
 * After a Mustard operation there are bradyarrhythmias.
 * The right axis deviation is moderate or absent, in patients with a large VSD, low pulmonary vascular resistance, and LV volume overload.
 * The right axis deviation is greater if there is a reduced pulmonary arterial blood flow and reduced left ventricular volume as a result of pulmonary vascular disease or pulmonic stenosis.

Acknowledgements and Initial Contributors to Page
Leida Perez, M.D.