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.