Key result
Pulsed field ablation for AF can trigger rare multivessel coronary microvascular vasospasm.
Why the study?
Despite the overall safety and effectiveness of pulsed field ablation for atrial fibrillation, rare but clinically important procedure-related complications remain recognized.
Case Report
Highlights the occurrence of multivessel coronary microvascular vasospasm as a rare but clinically important complication of pulsed field ablation during atrial fibrillation ablation.
Pulsed field ablation (PFA) has become a widely adopted nonthermal energy source for atrial fibrillation (AF) ablation, valued for its myocardial selectivity and reduced collateral injury. 1,2 Large registries have confirmed its overall safety and effectiveness in routine practice.3,4 However, despite these advantages, PFA is not free from procedure-related complications, and rare but clinically important adverse events continue to be recognized.2,4
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Miyoshi et al. (2026) conducted a case report in Persistent Atrial Fibrillation. Pulsed field ablation was evaluated. Pulsed field ablation for persistent atrial fibrillation can be associated with rare but clinically important adverse events, including multivessel coronary microvascular vasospasm.
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