Clinical usefulness of the atrial double potential at the intercaval region in the right atrium: a new index for inducibility of atrial fibrillation in electrophysiologic studies

Japanese Heart Journal
Y KitanoT Izumi

Abstract

The second deflection of the atrial double potential (DP) recorded at the intercaval region is considered to reflect the far-field potential of the left atrium. The conduction via the upper interatrial connection was evaluated utilizing this DP and the relationship between atrial fibrillation (AF) and the conduction via the interatrial connection evaluated. In 30 consecutive patients with the DP at the intercaval region, prolongation in the left atrial activation time during the right atrial extra stimulation was measured at the intercaval region (deltaDP) and the coronary sinus (deltaCS). The difference between deltaDP and deltaCS (deltaDP-deltaCS) was used as an index of inhomogeneity in interatrial conduction. The patients were divided into AF (n=13) and non-AF (n=17) groups in accordance with the inducibility of AF in the electrophysiologic study. The max deltaDP and the max ACS were greater in the AF group than in the non-AF group, i.e., max deltaDP (43+/-19 vs 27+/-17 ms, P=0.021), max deltaCS (35+/-15 vs 21+/-14 ms, P=0.029). The max absolute value(deltaDP-deltaCS) was also greater in t

References

Oct 1, 1977·The American Journal of Cardiology·R W CampbellA G Wallace
Jan 1, 1991·American Heart Journal·S Niwano, Y Aizawa
Mar 1, 1991·Japanese Circulation Journal·Y AsanoY Dohi
Jul 1, 1973·Circulation Research·M A AllessieF J Schopman
Sep 1, 1971·The American Journal of Cardiology·J A AbildskovM J Burgess
Jun 1, 1970·Circulation·M A Bennett, B L Pentecost
Jan 1, 1968·Circulation·J I HaftA N Damato
Sep 1, 1983·Pacing and Clinical Electrophysiology : PACE·R J SimpsonL S Gettes
Dec 1, 1982·The American Journal of Cardiology·R J SimpsonL S Gettes
Mar 1, 1981·The American Journal of Cardiology·R A BauernfeindK M Rosen
Jun 1, 1995·Pacing and Clinical Electrophysiology : PACE·L PadelettiG F Gensini
Aug 1, 1965·American Heart Journal·T KILLIP, J H GAULT

❮ Previous
Next ❯

Citations

Jul 10, 2007·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Laxman PrajapatDavid H Spodick

❮ Previous
Next ❯

Related Concepts

Related Feeds

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.

Atrial Filbrillation

Atrial fibrillation refers to the abnormal heart rhythm characterized by rapid and irregular beating of the atria. Here is the latest research.

Cardiac Conduction System

The cardiac conduction system is a specialized tract of myocardial cells responsible for maintaining normal cardiac rhythm. Discover the latest research on the cardiac conduction system here.

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.