Atropine sulfate may be effective to recover the unstable hemodynamics in coronary artery spasms related to atrial fibrillation ablation procedures.

Coronary artery spasms related to atrial fibrillation ablation procedures could cause lethal ventricular fibrillation or cardiopulmonary arrest. It may be useful to try intravenous atropine sulfate while preparing urgent coronary artery angiography in hemodynamically unstable coronary artery spasms cases to prevent development of the lethal arrhythmias.
Competing Interests: The authors declare no conflict of interests for this article.
(© 2024 The Author(s). Journal of Arrhythmia published by John Wiley & Sons Australia, Ltd on behalf of Japanese Heart Rhythm Society.)