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.
Tracing during manifest entrainment by pacing from the low postero‐septal right atrium (Low PS‐RA) in Patient 7. The ECG leads I, II, and V1 and electrograms recorded from the high right atrium (HRA), coronary sinus (CS), and His bundle (HB) position are shown. d indicates distal; EAAS, indicates earliest atrial activation site; MAP, mapping catheter; p, proximal; Stim, stimulation.
