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. 2021 Dec 20;8:778866. doi: 10.3389/fcvm.2021.778866

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Copyright © 2021 Weng, Zhai, Tang, Zhou, Ding, Yu, Qi, Zhang, Feng and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Patterns of rebound notches on the precordial lead. (A) Left-sided (V3-V5) rebound notches (a downstroke notch on the earlier lead followed by an upstroke notch on a later lead; peak R-wave deflection interval: (a < b) is more common in ventricular arrhythmias ablated in the right-anterior ASV. (B) Right-sided (V2-V3) rebound notches are more common in ventricular arrhythmias ablated in the left-lateral ASV. (C) The accuracy of rebound notches in identifying ventricular arrhythmias originating from the right-anterior ASV and/or the left-lateral ASV. ASV, aortic sinus of Valsalva; PPV, positive predictive value; NPV, negative predictive value.