Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Hypoplastic left heart syndrome. Cardiac catheterization confirms that the atrial septum is closed. Catheter’s point is in the left atrium and this image shows that there is not communication between the left and the right atrium because there is no crossing of the contrast medium.
