Limitations
The present study was associated with several limitations. First, this was a non-randomized, retrospective study. Second, the small number of patients with AF may have influenced the interpretation of the results. Third, asymptomatic AF episodes may have been missed after CA. Fourth, there are no uniform standards for introducing bepridil. Finally, the duration of bepridil use was left to the discretion of the individual physicians in outpatient clinics. Thus, a prospective, randomized controlled study is needed to confirm these findings.