The coronary venous system offers a crucial and effective vantage point for mapping and ablating challenging intramural and epicardial ventricular arrhythmias when standard endocardial approaches are insufficient.
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May aid select intramural VA ablation; leaves open standardized protocols and outcome data.
Catheter ablation is an effective treatment method for ventricular arrhythmias (VAs). These arrhythmias can often be mapped and targeted with ablation from the left and right ventricular endocardium. However, in some situations the VA site of origin or substrate may be intramural or epicardial in nature. In these cases, the coronary venous system (CVS) provides an effective vantage point for mapping and ablation. This review highlights situations in which CVS mapping may be helpful and discusses techniques for CVS mapping and ablation.
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Liang et al. (2021) studied this question.
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