Limitations
Our study had the following limitations. Firstly, the sample size was small. Secondly, the coin-tossing randomization did not prespecify the EVA site distribution for subgroup analysis. Thirdly, the benefits of fewer ablation applications, such as myocardial damage, total ablation time, procedural time, and X-ray exposure, were not evaluated. Fourthly, the aortic sinus of Valsalva and coronary venous system was not routinely mapped. Fifthly, the echocardiography was reassessed in 11/61(18%) patients after the procedure. No PV dysfunction was noted. Lastly, ICE and high-density mapping were not used.