Interatrial block and atrial arrhythmias in centenarians: Prevalence, associations, and clinical implications.

Background: Data are lacking on the characteristics of atrial activity in centenarians, including interatrial block (IAB).

Objective: The aim of this study was to describe the prevalence of IAB and auricular arrhythmias in subjects older than 100 years and to elucidate their clinical implications.

Methods: We studied 80 centenarians (mean age 101.

Reverse atrial remodeling following pulmonary vein isolation: the importance of the body mass index.

Background: Pulmonary vein isolation (PVI) causes a reduction in left atrium size that is attributable to reverse atrial remodeling (RAR). The objective of this study was to identify predictors of RAR and determine its association with other parameters of improvement in cardiac function.

Methods: It is a prospective study with 74 patients (52 ± 9 years old, 81% male), and 51% of patients had paroxysmal atrial fibrillation.