TY - JOUR
T1 - Interatrial septum pacing avoids the adverse effect of interatrial delay in biventricular pacing
T2 - An echo-Doppler evaluation
AU - Porciani, Maria Cristina
AU - Sabini, Alessandra
AU - Colella, Andrea
AU - Michelucci, Antonio
AU - Musilli, Nicola
AU - Pieragnoli, Paolo
AU - Padeletti, Luigi
PY - 2002/7
Y1 - 2002/7
N2 - Aims. Biventricular pacing (BVP) can improve haemodynamics in patients with dilated cardiomyopathy (DCM) and left bundle branch block by reducing interventricular delay (IVD). Since in DCM interatrial delay (IAD) and IVD frequently coexist, the aim of this study was to test the hypothesis that IVD reduction associated with IAD produces an imbalance between the programmed right atrioventricular (AV) delay and the effective AV delay on the left, and that interatrial septum pacing (IASP) combined with BVP overcomes this adverse effect. Methods and Results. IAD, IVD, left and right mechanical atrioventricular delay (L-RMAVD) were measured by echo-Doppler in 29 patients with BVP: 17 patients (Group A) had the atrial lead in the right atrial appendage, 12 patients (Group B) who experienced paroxysmal atrial fibrillation had the atrial lead on the interatrial septum. In Group A, LMAVD was significantly shorter than RMAVD (172 ± 24 vs 207 ± 24 ms, P
AB - Aims. Biventricular pacing (BVP) can improve haemodynamics in patients with dilated cardiomyopathy (DCM) and left bundle branch block by reducing interventricular delay (IVD). Since in DCM interatrial delay (IAD) and IVD frequently coexist, the aim of this study was to test the hypothesis that IVD reduction associated with IAD produces an imbalance between the programmed right atrioventricular (AV) delay and the effective AV delay on the left, and that interatrial septum pacing (IASP) combined with BVP overcomes this adverse effect. Methods and Results. IAD, IVD, left and right mechanical atrioventricular delay (L-RMAVD) were measured by echo-Doppler in 29 patients with BVP: 17 patients (Group A) had the atrial lead in the right atrial appendage, 12 patients (Group B) who experienced paroxysmal atrial fibrillation had the atrial lead on the interatrial septum. In Group A, LMAVD was significantly shorter than RMAVD (172 ± 24 vs 207 ± 24 ms, P
KW - Atrioventricular mechanical delay
KW - Biventricular pacing
KW - Echo-Doppler
KW - Interatrial delay
KW - Interatrial septum pacing
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U2 - 10.1053/eupc.2002.0239
DO - 10.1053/eupc.2002.0239
M3 - Article
C2 - 12134979
AN - SCOPUS:0036665057
VL - 4
SP - 317
EP - 324
JO - Europace
JF - Europace
SN - 1099-5129
IS - 3
ER -