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.
A: Activation mapping of second atrial tachycardia (AT2) circuit. The red arrows show the AT2 circuit and the white arrows go toward the dead end. The blue points indicate where the postpacing intervals had a tachycardia cycle length of +20 ms or less. B: The application points (red points) illustrate where tachycardia was terminated. The bidirectional block line was completed. The internal electrocardiogram reveals the local ablated potential of termination.
