Ultra-high-resolution mapping is useful in the ablation of accessory pathways. However, in patients with accessory pathways in the coronary sinus (CS) diverticulum, treatment with endocardial ablation may be challenging. Patients suspected of having subepicardial accessory pathways may require the examination of the venous anomaly using CS angiography.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7981624PMC
http://dx.doi.org/10.1002/ccr3.3760DOI Listing

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