William H. Sauer Archives

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Radiofrequency (RF) current is the most common source of ablative energy used for the treatment of cardiac arrhythmias. Its origins began with electrosurgery and have since been refined to treat all cardiac arrhythmias. Over time, with greater understanding of resistive…

Substrate-Based Ablation for Ventricular Tachycardia

Key Points Mapping Arrhythmogenic substrate in ventricular tachycardia (VT) in the setting of structural heart disease is usually living but diseased myocardium within scar, which promotes reentry. This substrate can usually be identified and effectively targeted with ablation in sinus…

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Radiofrequency Ablation

Substrate-Based Ablation for Ventricular Tachycardia