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Bachmann's Bundle Versus Right Atrial Appendage Capture
Author(s) -
BAILIN STEVEN J.,
MACHADO CHRISTIAN,
NSAH EMMANUEL,
WORLEY SETH,
KREMERS MARK,
BAILEY J. RUSSELL,
HILDEBRAND LAURA
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.1460-9592.2003.00029.x
Subject(s) - medicine , atrial appendage , cardiology , right atrium , bundle , electrophysiology , significant difference , atrium (architecture) , anatomy , atrial fibrillation , materials science , sinus rhythm , composite material
BAILIN, S.J.,et al.: Bachmann's Bundle Versus Right Atrial Appendage Capture.The tissue in the high intraatrial septum in the region of Bachmann's Bundle (BB) exhibits electrophysiological properties that differ from the right atrial appendage (RAA). As BB pacing emerges as an alternative to RAA pacing, the feasibility of using automatic capture recognition technology in this location should be examined. At implant, active‐fixation leads were consecutively placed in the RAA, then the BB in 18 patients (55.5% men, mean age77.1 ± 9.1). There was no significant difference between BB and RAA in the average capture threshold (1.12 vs 1.77 V, P = 0.09), sensing threshold (3.85 vs 3.69 mV, P = 0.84), impedance (508 vs 529 Ohms, P = 0.64), evoked response (1.78 vs 1.67 mV, P = 0.83), and polarization (0.41 vs 0.46 mV, P = 0.84) between. The difference in tissue characteristics was not associated with a different evoked response measured by the ventricular capture recognition algorithm. Based on the analogous evoked response and polarization values, capture recognition technology designed for the atrium will most likely be applicable at both pacing sites. (PACE 2003; 26[Pt. II]:264–267)