The occurrence of anodal stimulation during bipolar pacing in implantable pacemakers

Author

Lu, Richard M.T. ; Steinhaus, Bruce M. ; Dawson, Albert K.

Author_Institution

Telectronics Pacing Syst., Englewood, CO, USA

fYear

1992

Firstpage

495

Lastpage

498

Abstract

An attempt was made to determine the anodal threshold during bipolar pacing using different pacemaker leads from three manufacturers and to determine whether simultaneous anodal and cathodal stimulation were responsible for the observed morphological changes in the evoked electrogram. Seven animals were studied. The results indicated that the anodal threshold was not a definitive value, but was a probability curve. The studies determined that the lowest anodal threshold ranged from 1.8 V to >6.7 V. In addition, the occurrence of anodal stimulation was highly correlated with changes in the bipolar evoked electrogram. There was also a correlation between anodal stimulation threshold during bipolar pacing and the anodal unipolar pacing threshold

Keywords

anodes; pacemakers; 1.8 to 6.7 V; animals; anodal stimulation; anodal threshold; anodal unipolar pacing threshold; bipolar pacing; cathodal stimulation; evoked electrogram; implantable pacemakers; morphological changes; pacemaker leads; probability curve; Animals; Cathodes; Delay; Dogs; Electrodes; Linear regression; Manufacturing; Pacemakers; Polarization; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1992, Proceedings of

Conference_Location

Durham, NC

Print_ISBN

0-8186-3552-5

Type

conf

DOI

10.1109/CIC.1992.269521

Filename

269521