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Can Simple Doppler Measurements Estimate Interatrial Conduction Time?
Author(s) -
COZMA DRAGOS,
KALIFA JEROME,
PESCARIU SORIN,
LIGHEZAN DANIEL,
STIUBEI MARCEL,
LUCA CONSTANTIN TUDOR,
DEHARO JEANCLAUDE,
DJIANE PIERRE,
DRAGULESCU STEFANIOSIF
Publication year - 2003
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1046/j.1460-9592.2003.00065.x
Subject(s) - medicine , cardiology , atrial fibrillation , sinus rhythm , coronary sinus , qrs complex
COZMA, D., et al.: Can Simple Doppler Measurements Estimate Interatrial Conduction Time?Prolongation of the interatrial conduction time (ia‐CT) is considered an important factor in the pathophysiology of atrial fibrillation (AF) and as a criterion to perform multisite atrial pacing. Measurement of ia‐CT requires an electrophysiologic study. The aim of this study was to compare echocardiographic with electrophysiologic measurements to determine if they are correlated. Methods and Results: The study included 32 consecutive patients who underwent electrophysiologic studies. We measured ia‐CT between the high right atrium and the distal coronary sinus. In all patients we measured P wave duration, left atrial diameter and area, and ia‐CT by Doppler echocardiography was measured as the difference in time intervals between the QRS onset and the tricuspid A wave, and the QRS onset and the mitral A wave (DT). Ia‐CT was statistically correlated with DT(r = 0.79, P < 0.0001), but not with P wave duration or left atrial dimensions. Conclusions: Measurement DT may be reliable to estimate ia‐CT without invasive procedure. Accordingly, DT could be used as a simple selection criterion when considering patients for atrial resynchronization therapy. (PACE 2003; 26[Pt. II]:436–439)