Clinical outcome of a single procedure cryoballoon ablation for the treatment of atrial fibrillation: A real-world multicenter experience in Portugal Pedro Silva Cunha, Paulo Fonseca, Sérgio Laranjo, Fernando Montenegro Sá, Bruno Tereno Valente, Guilherme Portugal, Helena Gonçalves, Manuel Nogueira da Silva, Luís Brandão, Mário Martins Oliveira, João Primo

Efficacy of extended antrum ablation based on substrate mapping plus pulmonary vein isolation in the treatment of atrial fibrillation Lin Chen, Jian-Quan Chen, Tian Zou, Qian Chen, Liang-Hua Lian, Zhi-Ping Yang, Mei-Qiong Wu, Ya-Zhou Lin, Yi-Ming Peng, Wei Lin, Xue-Wen Liao, Qi-Lei Huang, Jian-Cheng Zhang

Quality indicators in atrial fibrillation ablation (RIQAFA). A national registry from the Portuguese Association of Arrhythmology, Pacing and Electrophysiology (APAPE) Pedro Carmo, Dinis Mesquita, Nuno Cabanelas, Ana Rita Marinheiro, Sílvia Nunes, Duarte Chambel, Francisco Moscoso Costa, Victor Sanfins, Leonor Parreira