Abstract

An application of unipolar dual-chamber pacemaker to a single chamber pacing. Recent published studies have reported on clinical disadvantages of unipolar against bipolar configuration with regard to the susceptibility to skeletal myopotentials, muscle twitching, flexbibility, redundancy and so on. However, in Europacing-85, we have presented the unique unipolar single chamber pacing system with dual mode which automatically changes to VVI or VVT according to the level of the input signals and could overcome the proposed superiority of bipolar VVI pacing system.