Abstract
ABC-E. C. G.'s in 22 cases of ventricular septal defect (18 pre-operative, 4 post-operative) are analysed.
Right, left and bi-ventricular hypertrophy were correctly assessed electrocardiographically.
Characteristic appearances in Fallot's tetralogy, PS with simple VSD and simple VSD are presented.
The diagnostic value of the ABC tracings is evaluated.