“…Different strategies have been used to reduce the effects of polarization and to make ER detection more reliable, such as the use of low‐polarization leads, 13,14 or utilization of a pacing circuit with a small coupling capacitor to reduce the lead‐tissue interface polarization 15,16 . Independent pace/sense method has also been used in the AT features for atrium and left ventricle, in which the ER sensing vector does not share common lead electrodes with the pacing vector 17,18 . The technique was shown to be able to achieve improved signal characteristics and robust capture detection performance.…”