Atrial Septal Defects ( ASD )

Atrial Septal Defects ( ASD ) happens when there is a failure to close the communication between the right and left atria.

One of the most common type of congenital heart defects ASD along with PDA is generally regarded as benign and often curable congenital heart defects Prevalence quoted in literature- ASD constitute about 10 % of congenital cardiac defects and 22-40 % of congenital heart disease in adults- ASD are the 2nd most common Cong HD in children with an incidence of 0.07 % to 0.2 % and have a female to male ratio of 2 : 1- About 1 % of children with moderate to large ASD will experience symptoms which usually do not happen until late childhood or older ASD can happen with other congenital heart defects.

Types of ASD-

Ostium secundum -most common ASD type defect accounts for 75 % to 80 % of ASD cases true defect of the atrial septum and involves the region of fossa ovalis relatively central in the atrial septum and is separated from SVC , IVC and tricuspid mitral valves by a rim of atrial septal tissue OS-ASD defects of sizes < 6 mm or smaller in diameter are likely...