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.
Sustained atrial flutter/fibrillation (A) induced by a single premature beat recorded in a coronary-perfused right atrial preparation isolated from a dog with heart failure. (B) Ranolazine (5 μM) terminated the arrhythmia and depressed excitability resulting in failure of 1:1 activation at a cycle length of 300 ms, thus preventing re-induction of the arrhythmia. Pacing artifacts are seen on the action potential (AP) tracing. ECG, electrocardiogram.
