Aims The totally subcutaneous implantable-defibrillator (S-ICD) is a new alternative to the
conventional transvenous ICD system to minimize intravascular lead complications. There are …

Objectives : The purpose of this study was to characterize the occurrence of phrenic nerve
injury (PNI) and its outcome after radiofrequency (RF) ablation of atrial fibrillation (AF). …

… A P -value of less than 0.05 was considered significant. Continuous variables are … = 0.364)
nor left atrial anterior–posterior dimension (OR: 1.625; CI 95%; 0.710–3.716, P = 0.250) were …

Objectives The goal of this study was to develop a risk score model for patients with Brugada
syndrome (BrS). Background Risk stratification in BrS is a significant challenge due to the …

… Variables with a P-value ≤0.10 in univariate analysis were entered simultaneously in a
multivariate Cox regression model and considered to be statistically significant if P < 0.05. …

… The multivariate Cox regression was performed in a stepwise forward model with the use
of P ≤ 0.10 and P ≤ 0.05 for inclusion or deletion of variables, respectively. Predictors of …

Methods This was a cross-sectional study of a representative sample of the Portuguese
population including subjects of both genders aged 40 and over, resident in Portugal. The …

Objective: The results obtained in 43 patients using direct intraoperative radiofrequency
catheter ablation, as an alternative to surgical incisions, to perform atrial fibrillation surgery, are …

Objective: Atrial fibrillation has been a difficult problem to solve in many surgical patients,
especially in those with mitral valve pathology. This study evaluates the results of endocardial …

Use of both magnetic resonance imaging (MRI) and pacing devices has undergone remarkable
growth in recent years, and it is estimated that the majority of patients with pacemakers …