Advanced interatrial block predicts ineffective cardioversion of atrial fibrillation: a FinCV2 cohort study.

ABSTRACT:

Aims

Rhythm control using electrical cardioversion (CV) is a common treatment strategy for patients with symptomatic atrial fibrillation (AF). To guide clinical decision making, we sought to assess if electrocardiographic interatrial blocks could predict CV failure or AF recurrence as the phenomenon is strongly associated with atrial arrhythmias.

Methods

This study included 715 patients who underwent a CV for persistent AF lasting >48 h. P-wave duration and morphology were analyzed in post-procedure or the most recent sinus rhythm electrocardiograms and compared with rates of CV failure and AF recurrence within 30 days after CV as well as their combination (ineffective CV).

Results

CV was unsuccessful in 63 out of 715 patients (8.8%) and AF recurred in 209 out of 652

SUBMITTER: Relander A 

PROVIDER: S-EPMC8158202 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature