Study population
Five hundred and ninety-nine consecutive patients (69% men; mean age,
68 ± years, 60% paroxysmal AF) who underwent a total of 686 ablation
procedures (including 538 of the first procedures, and 148 of redo
procedures) for AF from January 2015 to April 2020 were retrospectively
examined. A total of 7 patients (1.2%) showed ATP-induced AF following
PV isolation were enrolled in this analysis. All antiarrhythmic drugs,
including amiodarone, were discontinued for at least five half-lives
before the procedure.
Written informed consent for the procedure was obtained from all
patients. The institutional review board approved this retrospective
study protocol.