ECG of the Week – 3rd July 2019

You are asked to review an ECG of a 24 years of age man complaining of a two day history of a mild intermittent non cardiac sounding chest pain. En route you the noted on his CXR showed cardiomegaly with an obscure right heart border. What can be noted on the ECG and which congenital abnormality is associated with these ECG abnormalities