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.
Arrhythmia induced by rapid pacing in failing heart 2. A: AP from five sites (a, b, c, d, and e) during a recording where pacing CL was switched from 370 to 335 ms, which induced arrhythmia. Alternans of APD is evident from recording sites b, c, d, and e. *Low-amplitude activation. #Apparent ectopic focal beat (beat 12) that triggered the arrhythmia. B: sequential activation maps of beat 6 to beat 12.
