Conclusion
Regular or timely measurement of plasma bepridil concentration and careful close cooperation by the electrophysiologist and family physician in charge of arrhythmia management will contribute to patient safety by avoiding TdP in pacemaker patients taking bepridil.
Conflict of interest: No authors have conflicts of interest to declare.
Funding : This study was funded by the Clinical Research Division of National Hospital Organization Yokohama Medical Center.
Acknowledgements : We thank Editage (www.editage.jp) for English language editing.