Atrial tachycardia misinterpreted as ventricular high-rate event in a patient with the sick sinus disease and a DDD pacemaker

Saurabh Ajit Deshpande; Ameya Udyavar

doi:10.1002/joa3.12497

Atrial tachycardia misinterpreted as ventricular high-rate event in a patient with the sick sinus disease and a DDD pacemaker

J Arrhythm. 2021 Jan 4;37(1):264-265. doi: 10.1002/joa3.12497. eCollection 2021 Feb.

Authors

Saurabh Ajit Deshpande¹, Ameya Udyavar²

Affiliations

¹ Department of Cardiac Electrophysiology Sri Jayadeva Institute of Cardiovascular Sciences and Research Bangalore India.
² Department of Cardiology P D Hinduja Hospital Mumbai India.

Abstract

The device misinterpreted atrial high-rate episode (AHRE) as ventricular high-rate episode (VHRE), since consecutive atrial beats fell in the postventricular atrial blanking (PVAB) period. This resulted in the failure of auto mode switch (AMS). This was corrected by decreasing the PVAB and the patient was asymptomatic on follow-up.