5 = Ostium Primum atrial septal defect The murmur produced by an ASD is due to increased flow through the pulmonic valve, thus it is remarkably similar to that of pulmonic stenosis.

A cardiac ASD (atrial septal defect) is a type of congenital heart disease (CHD). Approximately eight children out of a thousand are born with a CHD. About 10% of these CHDs are atrial septal defects.

Sinus Venosus ASD makes up only about 5% of all ASD cases, which occur in about 1 in 1,500 live births. This condition is by birth and had gone unnoticed as Sunil had never undergone any ECG or 2d ...