ArticleJournal of arrhythmia2026
ECG and Anatomical Features in Patients of Left Coronary Cusp Ventricular Arrhythmias With R Wave in Lead I.
Article in Journal of arrhythmia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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11 authors.
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Abstract
Backgrounds: Ventricular arrhythmias (VAs) originating from the coronary cusps with R wave in lead I typically originate specifically from the right coronary cusp (RCC), but are occasionally of left coronary cusp (LCC) origin. Methods: We retrospectively analyzed patients who underwent successful initial catheter ablation for VA in either the LCC ( Results: Among the 41 LCC patients, 9 (22.0%) showed an R wave in lead I in contrast to 100% of the 18 RCC patients. CT imaging was available for 22 LCC patients (53.7%) and revealed a modest correlation between electrocardiographic and anatomical axis ( Conclusion: In cases of VA suspected to originate from the aortic cusps with R wave in lead I, the presence of a leftward QRS axis during sinus rhythm suggests mapping should be extended to the LCC.
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