ABC | Volume 111, Nº6, December 2018

Original Article Odozynski et al PV anatomy and AF ablation Arq Bras Cardiol. 2018; 111(6):824-830 1. HaïssaguerreM,SandersP, JaïsP,Clémenty J.Pulmonaryveins inthesubstrate for atrial fibrillation: the “venous wave” hypothesis. J Am Coll Cardiol. 2004;43(12):2290-2. 2. Calkins H, Hindricks G, Cappato R, Kim Y, Saad EB, Aguinaga L, et al. 2017 HRS / EHRA / ECAS / APHRS / SOLAECE expert consensus statement on catheter and surgical ablation of atrial fibrillation. Heart Rhythm. 2017;14(10):e275-444. 3. Verma A, Chen J, Betts TR, Deisenhofer I, Mantovan R, PhD, et al; STARAF II Investigators. Approaches to catheter ablation for persistent atrial fibrillation. N Engl J Med. 2015;372(19):1812-22. 4. Marom EM, Herndon JE, Kim YH, Mcadams HP. Variations in pulmonary venous drainage to the left atrium: implications for radiofrequency ablation. Radiology. 2004;230(3):824-9. 5. Kanaji Y, Miyazaki S, Iwasawa J. Pre-procedural evaluation of the left atrial anatomy in patients referred for catheter ablation of atrial fibrillation. J Cardiol. 2016;67(1):115-21. 6. Prasanna LC, Praveena R, Souza AS, Bhat KM. Variations in the pulmonary venous ostium in the left atriumand its clinical importance. J ClinDiagn Res. 2014;8(2):10-1. 7. Dorian P, Guerra PG, Kerr CR, Donnell SS, Crystal E, Gillis AM, et al. Validation of a new simple scale to measure symptoms in atrial fibrillation: the Canadian Cardiovascular Society Severity in Atrial Fibrillation scale. Circ Arrhythm Electrophysiol. 2009;2(3):218-24. 8. Deubner N, Greiss H, Akkaya E, Berkowitsch A, Zaltsberg S, Hamm CW, et al. Clinical experience with contact-force and flexible-tip ablation catheter designs. J Interv Card Electrophysiol. 2016;47(1):75-82. 9. Hunter RJ, Berriman TJ, Diab I, Kamdar R, Richmond L, Goromonzi F, et al. A randomized controlled trial of catheter ablation versus medical treatment of atrial fibrillation in heart failure (the CAMTAF trial). Circ Arrhythm Electrophysiol. 2014;7(1):31-8. 10. Ouyang F, Tilz R, Chun J, Schmidt B, Wissner E, Zerm T, et al. Long-term results of catheter ablation in paroxysmal: lessons from a 5-year follow-up. Circulation. 2010;122(23):2368-77. 11. Schwartzman D, Bazaz R, Nosbisch J. Common left pulmonary vein : a consistent source of arrhythmogenic atrial ectopy. J Cardiovasc Electrophysiol. 2004;15(5):560-6. 12. den Uijl DW, Tops LF, Delgado V, Schuijf JD, Kroft LJM, Roos A De, et al. Effect of pulmonary vein anatomy and left atrial dimensions on outcome of circumferential radiofrequency catheter ablation for atrial fibrillation. Am J Cardiol. 2011;107(2):243-9. 13. Wo ź niak-Skowerska I, Skowerski M, Wnuk-wojnar A, Hoffmann A, Nowak S, Gola A, et al. Comparison of pulmonary veins anatomy in patients with andwithout atrial fibrillation: analysis bymultislice tomography. Int J Cardiol. 2011;146(2):181-5. 14. Mclellan AJ, Ling L, Ruggiero D, Wong MC, Walters TE, Nisbet A, et al. Pulmonary vein isolation: the impact of pulmonary venous anatomy on long-term outcome of catheter ablation for paroxysmal atrial fibrillation. Heart Rhythm. 2014;11(4):549-56. 15. Scharf C, Sneider M, Case IA, Chugh A, Lai SW, Pelosi F, et al. Anatomy of the pulmonary veins in patients with atrial fibrillation and effects of segmental ostial ablation analyzed by computed tomography. J Cardiovasc Electrophysiol. 2003;14(2):150-5. 16. Makimoto H, Lin T, Rillig A, Metzner A, Wohlmuth P, Arya A, et al. In vivo contact force analysis and correlation and catheter ablation of atrial fibrillation. Circ Arrhythm Electrophysiol. 2014;7(1):46-54. 17. Shurrab M, Di Biase L, Briceno DF, Kaoutskaia A, Haj-Yahia S, Newman D, et al. Impact of contact force technology on atrial fibrillation ablation: a meta-analysis. J AmHeart Assoc. 2015;4(9):e002476. 18. Heeger C, Tscholl V, Wissner E, Fink T, Rottner L, Wohlmuth P, et al. Acute efficacy,safety,and long-termclinicaloutcomesusingthesecond-generation cryoballoon for pulmonary vein isolation in patients with a left common pulmonary vein: a multicenter study. Hear Rhythm. 2017;14(8):1111-8. References Statistical analysis, Obtaining financing e Writing of the manuscript: Odozynski G, d'Avila A. Potential Conflict of Interest No potential conflict of interest relevant to this article was reported. Sources of Funding There were no external funding sources for this study. Study Association This study is not associatedwith any thesis or dissertationwork. Ethics approval and consent to participate This study was approved by the Ethics Committee of the Universidade Federal de Santa Catarina under the protocol number 45509015600000121. All the procedures in this study were in accordance with the 1975 Helsinki Declaration, updated in 2013. Informed consent was obtained from all participants included in the study. 829