Bipolar Ventricular Far‐Field Signals in the Atrium

57 patients with Medtronic dual chamber pacemakers (models 7940: n=6; 7960i: n=41; 401: n=3; 8968i: n=7) and bipolar atrial leads with a dipole spacing from 8.6 to 60 mm attached to various parts of the atrial wall (lateral/anterior: n=30; appendage: n=10; atrial septum: n=10; floating: n=7).

Evaluation of bipolar ventricular far-field oversensing at various atrial sensitivities, lead positions, and dipole spacings.

Prevalence and predisposing factors of bipolar ventricular far-field oversensing.surrogate