Address for correspondence:
Ignacio Garcia-Bolao.
Department of Cardiology and Cardiac Surgery.
Arrhythmia Unit.
Clinica Universidad de Navarra. University of Navarra and School of
Medicine Avda Pio XII sn. 31008 Pamplona. Spain.
Email: igarciab@unav.esPhone: +34948255400 ext 4390. FAX: +34048296500
Keywords: dual-dissociated pulmonary vein activity, pulmonary
vein isolation, local electrogram capture, exit-block, atrial
fibrillation.