Key result
Radiofrequency ablation for LVOT VPCs can cause coronary vasospasm via direct thermal effects.
Why the study?
Coronary artery injury or vasospasm can occur as a direct thermal effect of radiofrequency catheter ablation, with risks to epicardial coronary arteries during left ventricular endocardial ablation using an irrigated-tip catheter.
Case Report
Left ventricular endocardial ablation using an irrigated-tip catheter carries a risk of injury to epicardial coronary arteries, such as LAD spasm.
Requires vigilance for coronary injury during LVOT ablation; leaves open incidence and prevention strategies.
Tabled 1KEY TEACHING POINTS•Coronary artery injury or vasospasm can occur as a direct thermal effect of radiofrequency catheter ablation.•Although right or left circumflex coronary artery injury is prevalent when ablating near the atrioventricular groove, left ventricular endocardial ablation using an irrigated-tip catheter also has a risk of injury to epicardial coronary arteries. Open table in a new tab
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Kimata et al. (2015) conducted a case report in Ventricular premature contractions originating from the left ventricular outflow tract. Radiofrequency catheter ablation was evaluated on Coronary artery injury or vasospasm. Radiofrequency catheter ablation for ventricular premature contractions from the left ventricular outflow tract can cause coronary artery injury or vasospasm as a direct thermal effect.
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