This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Pulmonary atresia with intact ventricular septum

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

In this condition the pulmonary valve leaflets are completely fused and the right ventricular outflow tract is atretic. Consequently right atrial blood is shunted right to left through the foramen ovale and thence to the systemic circulation. Pulmonary blood flow occurs via a patent ductus arteriosus.

In patients with a small right ventricle there are often sinusoidal channels within the right ventricle which communicate with the coronary circulation whilst in patients with medium or large ventricular cavities there is often tricuspid insufficiency.


Related pages

Create an account to add page annotations

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.