Comment on

• Achievement of pulmonary vein isolation in patients undergoing circumferential pulmonary vein ablation: a randomized comparison between two different isolation approaches.

  Liu X, Dong J, Mavrakis HE, Hu F, Long D, Fang D, Yu R, Tang R, Hao P, Lu C, He X, Liu X, Vardas PE, Ma C. Liu X, et al. J Cardiovasc Electrophysiol. 2006 Dec;17(12):1263-70. doi: 10.1111/j.1540-8167.2006.00621.x. J Cardiovasc Electrophysiol. 2006. PMID: 17239094 Clinical Trial.
• The important role of pulmonary vein carina ablation as an adjunct to circumferential pulmonary vein isolation.

  Udyavar AR, Chang SL, Tai CT, Lin YJ, Lo LW, Tuan TC, Tsao HM, Hsieh MH, Hu YF, Chiang SJ, Chen YJ, Wongcharoen W, Higa S, Ueng KC, Chen SA. Udyavar AR, et al. J Cardiovasc Electrophysiol. 2008 Jun;19(6):593-8. doi: 10.1111/j.1540-8167.2008.01182.x. Epub 2008 May 5. J Cardiovasc Electrophysiol. 2008. PMID: 18462326
• Epicardial connections between the pulmonary veins and left atrium: relevance for atrial fibrillation ablation.

  Pérez-Castellano N, Villacastín J, Salinas J, Vega M, Moreno J, Doblado M, Ruiz E, Macaya C. Pérez-Castellano N, et al. J Cardiovasc Electrophysiol. 2011 Feb;22(2):149-59. doi: 10.1111/j.1540-8167.2010.01873.x. Epub 2010 Aug 30. J Cardiovasc Electrophysiol. 2011. PMID: 20807282