1. Pursuing the Perfect Pacemaker
Jeffrey A. Brinker, M.D. 
Mayo Clinic Proceedings 
Volume 64, Issue 5, Pages (May 1989)
DOI: /S (12)
Copyright © 1989 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Fig. 1
Hemodynamic effect of simultaneous atrial and ventricular contraction in 60-year-old patient with junctional rhythm spontaneously converting to a sinus mechanism. Left ventricular systolic pressure (scale 0 to 100 mm Hg) increases from 90 to 150 mm Hg, while right atrial pressure (scale 0 to 25 mm Hg) decreases with disappearance of cannon wave (arrow). Time lines are at 1-second intervals.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1989 Mayo Foundation for Medical Education and Research Terms and Conditions