Dual atrial rhythms: a case report of an unusual cause of pacemaker syndrome.

ABSTRACT:

Background

Atrial dissociation (AD) is described as the existence of two simultaneous electrically isolated atrial rhythms. Theoretically, detection of dual atrial rhythms with a sufficiently high rate by pacemaker can lead to automatic mode switching and associated pacemaker syndrome. Such a clinical observation has not been reported before in the literature.

Case summary

An 87-year-old female with Ebstein's anomaly status post-tricuspid valve annuloplasty and tricuspid valve replacement and a dual-chamber pacemaker presented with congestive heart failure 1 week after undergoing atrial lead revision. Interrogation of her dual-chamber pacemaker revealed two atrial rhythms: sinus or atrial-paced rhythm and electrically isolated atrial tachycardia (AT). Sensing of both atrial

SUBMITTER: Sirinvaravong N 

PROVIDER: S-EPMC8765788 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature