Atrial Electrogram Fractionation Distribution before and after Pulmonary Vein Isolation in Human Persistent Atrial Fibrillation—A Retrospective Multivariate Statistical Analysis

The research leading to these results was funded by the Leicester NIHR Cardiovascular Biomedical Research Unit, UK. Dr. Almeida received research grant from Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq, Brazil, Grant N. 200251/2012-0) and Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (Capes, Brazil).