Epidemiology

ASDs occur in 1 of 1500 live births. Secundum-type ASDs constitute 6% to 10% of congenital heart defects[1][8] and have a 2:1 female-to-male predominance.[9] Secundum defects account for 75% of ASDs. The other types of ASDs occur far less frequently: ostium primum (15% of ASDs), sinus venosus (5% of ASDs), and unroofed coronary sinus defects (1% of ASDs). ASDs can also occur in conjunction with more significant congenital heart defects.

BMJ Best Practice is an evidence-based point of care tool for healthcare practitioners.

To continue reading and access all of BMJ Best Practice's pages you'll need to log in or start a free trial.

You can access through your institution if your hospital, university, trust or other institution provides access to BMJ Best Practice through either OpenAthens or Shibboleth.

Use of this content is subject to our disclaimer