Europace Advance Access published online on October 6, 2009
Europace, doi:10.1093/europace/eup311
CASE REPORT
Pro-arrhythmia in atrial fibrillation suppression pacing algorithms
1 Division of Cardiac Electropysiology, Providence Heart Institute, Wayne State University, Southfield, MI, USA; 2 Division of Cardiac Electrophysiology, University of Utah Health Sciences Center, 30 North 1900 East, Room 4A100, Salt Lake City, UT 84132, USA
Atrial overdrive pacing algorithms have been partially effective in controlling atrial fibrillation (AF). A 76-year-old man with history of a cardiomyopathy and paroxysmal AF underwent implant of a dual-chamber ICD. After enabling preferential pacing (PP) algorithms, marked control of his AF was demonstrated, but with inappropriate ICD shocks secondary to a typical AV nodal re-entrant tachycardia. After successful slow pathway modification, no further episodes were documented with suppression of his AF burden with PP algorithms enabled.
* Corresponding author. Tel: +1 801 585 1686, Fax: +1 801 581 7735. Email: marcos.daccarett{at}hsc.utah.edu