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: His-refractory ventricular premature contraction (VPC) reset supraventricular tachycardia (SVT)-1 with the delay of subsequent His and next atrium (underlined H and A). B: The reset phenomenon disappeared by “earlier” His-refractory VPC. C: SVT-1 was terminated by VPC earlier than His with atrial advancement (circle). A = atrium; d = distal; H = His; p = proximal; S = stimulation; V = ventricle.
