Echocardiographic Approach to Congenitally Corrected Transposition

Abstract

The hallmark of corrected transposition is discordance at atrio-ventricular and ventriculo-arterial level and that is defined as “double discordance”. This can occur as an isolated anomaly but more commonly has associated defects; most common being ventricular septal defect followed by tricuspid valve abnormalities. Other associated defects are pulmonary stenosis, systemic and pulmonary venous anomalies, univentricular physiology, ventricular dysfunction (morphological right ventricle facing systemic circulation) and association of conduction abnormalities. Echocardiography plays a pivotal role in defining the anatomy and planning the management. In this article we are discussing about role of echocardiography in evaluation of corrected transposition, diagnosing the lesion, role in immediate post-operative period and on follow up.