Focal monopolar pulsed-field ablation for atrial fibrillation resulted in late-onset suspected coronary vasospasm 42 hours post-procedure in a 64-year-old man.
Case Report (n=1)
Coronary vasospasm after focal monopolar PFA may occur beyond the immediate post-procedural period, up to 42 hours later, which may have implications for monitoring and discharge planning.
ABSTRACT Introduction Coronary vasospasm is a recognized complication of pulsed‐field ablation (PFA), but delayed events are rarely described. Methods and Results A 64‐year‐old man underwent atrial fibrillation ablation using a focal monopolar PFA catheter. He developed transient chest discomfort 18 h after ablation, followed by sustained chest tightness with ST‐segment depression 42 h post‐procedure. Symptoms and electrocardiographic changes resolved promptly with sublingual nitroglycerin, suggesting coronary vasospasm. Conclusion Coronary vasospasm after focal monopolar PFA may occur beyond the immediate post‐procedural period, which may have implications for monitoring and discharge planning.
ARAKI et al. (2026) conducted a case report in Atrial Fibrillation (n=1). Focal monopolar pulsed-field ablation was evaluated. Focal monopolar pulsed-field ablation for atrial fibrillation resulted in late-onset suspected coronary vasospasm 42 hours post-procedure in a 64-year-old man.