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. 2021 Feb 25;12:641066. doi: 10.3389/fphys.2021.641066

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Copyright © 2021 Zheng, Fu, Abudayyeh, Yacoub, Chang, Feaster, Ehwerhemuepha, El-Askary, Du, He, Feng, Yu, Wang, Liu, Yao, Chu and Rakovski.

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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Activation map and fluoroscopic map for VA originating from commissure of aortic sinus of valsalva in LVOT. (A) Right and left anterior oblique fluoroscopic views show an ablation catheter in the LVOT. Ablation in the LVOT (LCC–RCC commissure) eliminated the PVC within 3 s. (B) The 3-D anatomic representation of the RV endocardium, LV endocardium, and venous system with the ablation catheter positioned at the anterior interventricular vein. (C) The green circle indicates the tip of the ablation catheter in LCC–RCC commisure. (D) The earliest bipolar and unipolar activation time (–30 ms) are shown.