Electrocardiogram may be used as a diagnostic tool in the evaluation of an atrial septal defect. ECG findings associated with various right heart dysfunctions such as axis deviation, enlargement and hypertrophy.
The EKG findings in<unk><unk>  are nonspecific and variable but may present:
Right axis deviation
Right atrial enlargement
Right ventricular hypertrophy
Cor triatriatum electrocardiogram
Tetralogy of fallot electrocardiogram
Brugada syndrome electrocardiogram
Dextrocardia electrocardiogram
Noncompaction cardiomyopathy electrocardiogram
AVNRT electrocardiogram
Short QT syndrome electrocardiogram
Andersen-Tawil syndrome electrocardiogram