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View article: Sinus rhythm late activation zones as a target for improving ventricular tachycardia ablation outcomes
Sinus rhythm late activation zones as a target for improving ventricular tachycardia ablation outcomes Open
Background Ventricular tachycardia (VT) ablation is a critical intervention for patients with ischemic heart disease and has demonstrated to improve patient’s prognosis. Although there is some evidence regarding the best way to identify th…
View article: Long-term outcomes of ventricular tachycardia ablation in patients presenting with electrical storm
Long-term outcomes of ventricular tachycardia ablation in patients presenting with electrical storm Open
Background Catheter ablation (CA) is an established therapy for drug-resistant ventricular tachycardia (VT). Although previous reports suggest higher recurrence and mortality rates in patients presenting with electrical storm (ES), data on…
View article: Midterm results of the LEADR trial confirm ongoing safety, efficacy, and reliability of the novel, small-diameter OmniaSecure defibrillation lead
Midterm results of the LEADR trial confirm ongoing safety, efficacy, and reliability of the novel, small-diameter OmniaSecure defibrillation lead Open
Introduction Defibrillation leads remain the weak point of implantable cardioverter-defibrillators due to potential lead failure that may result in adverse patient outcomes. Thus, modern defibrillation leads that are safe, efficacious, and…
View article: Preservation of left ventricular ejection fraction with left bundle branch area pacing
Preservation of left ventricular ejection fraction with left bundle branch area pacing Open
Background Left bundle branch area pacing (LBBAP) has emerged as an effective ventricular pacing strategy aiming to maintain physiological conduction, and potentially preserving ventricular function. While procedural aspects and lead param…
View article: Left bundle branch area pacing: longitudinal data on pacing efficacy
Left bundle branch area pacing: longitudinal data on pacing efficacy Open
Background Left bundle branch area pacing (LBBAP) has gained recognition as a technique for physiological ventricular pacing that maintains left ventricular (LV) synchrony. Although procedural characteristics are increasingly documented, i…
View article: Predicting Atrial Fibrillation Relapse Using Bayesian Networks: Explainable AI Approach
Predicting Atrial Fibrillation Relapse Using Bayesian Networks: Explainable AI Approach Open
Background Atrial fibrillation (AF) is a prevalent arrhythmia associated with significant morbidity and mortality. Despite advancements in ablation techniques, predicting recurrence of AF remains a challenge, necessitating reliable models …
View article: Atrial Fibrillation Catheter Ablation: Electroporation Against High-Power Short Duration Radiofrequency
Atrial Fibrillation Catheter Ablation: Electroporation Against High-Power Short Duration Radiofrequency Open
Background Pulmonary vein isolation (PVI) is crucial in treating symptomatic atrial fibrillation (AF). New ablation technologies, such as pulse-field ablation (PFA) and high-power short-duration (HPSD) have emerged in the electrophysiology…
View article: Revisiting risk stratification in hypertrophic cardiomyopathy after the recent guidelines - LGE remains tough to beat
Revisiting risk stratification in hypertrophic cardiomyopathy after the recent guidelines - LGE remains tough to beat Open
Background and Objectives Over the last decades, the recommendation for ICD implantation for the primary prevention of sudden cardiac death (SCD) in hypertrophic cardiomyopathy (HCM) has been evolving. Late gadolinium enhancement (LGE) has…
View article: Safety and effectiveness of pulsed field ablation for pulmonary vein isolation in atrial fibrillation patients: a single centre experience
Safety and effectiveness of pulsed field ablation for pulmonary vein isolation in atrial fibrillation patients: a single centre experience Open
Introduction Atrial Fibrillation (AF) is the most frequent arrhythmia in the world with an exponentially increasing prevalence. Pulmonary veins (PV) are the primary triggering sites for AF and pulmonary veins isolation (PVI) is currently t…
View article: Electrocardiographic imaging to guide ablation of ventricular arrhythmias shows a higher benefit in patients with low intraprocedural burden
Electrocardiographic imaging to guide ablation of ventricular arrhythmias shows a higher benefit in patients with low intraprocedural burden Open
Background and aims Electrocardiographic imaging (ECGI) provides a non-invasive activation map of focal ventricular arrhythmias that has shown good accuracy regardless of the type of cardiac source used. Pre-procedure diagnosis in cases th…
View article: Left atrial wall thickness measured by a machine learning method predicts AF recurrence after pulmonary vein isolation
Left atrial wall thickness measured by a machine learning method predicts AF recurrence after pulmonary vein isolation Open
Background Left atrial (LA) remodeling plays a significant role in the progression of atrial fibrillation (AF). Although LA wall thickness (LAWT) has emerged as an indicator of structural remodeling, its impact on AF outcomes remains uncle…
View article: Long-term outcomes of ventricular tachycardia ablation in patients with ischemic and non-ischemic cardiomyopathy: a propensity-score matched analysis
Long-term outcomes of ventricular tachycardia ablation in patients with ischemic and non-ischemic cardiomyopathy: a propensity-score matched analysis Open
Background Catheter ablation (CA) has been shown to be effective in the treatment of ventricular tachycardia (VT). Although some observational data suggest that patients with non-ischemic cardiomyopathy (NCIM) have less favorable clinical …
View article: Outcomes of ventricular tachycardia ablation in patients with ischemic and non-ischemic cardiomyopathy: A propensity-score matched analysis
Outcomes of ventricular tachycardia ablation in patients with ischemic and non-ischemic cardiomyopathy: A propensity-score matched analysis Open
Non-ischemic cardiomyopathy patients were at increased risk of VT recurrence after ablation, although long-term mortality did not differ.
View article: Quality indicators in atrial fibrillation ablation (RIQAFA). A national registry from the Portuguese Association of Arrhythmology, Pacing and Electrophysiology (APAPE)
Quality indicators in atrial fibrillation ablation (RIQAFA). A national registry from the Portuguese Association of Arrhythmology, Pacing and Electrophysiology (APAPE) Open
In a population of patients with AF referred for ablation in Portuguese centers, patient management is provided according to the best scientific evidence and there is a high standard of practice with respect to the quality of AF ablation p…
View article: Using the 3D architecture of scar to predict life-threatening ventricular arrhythmias, still a long way to go
Using the 3D architecture of scar to predict life-threatening ventricular arrhythmias, still a long way to go Open
Background Late gadolinium enhancement (LGE) has been proposed as an independent predictor of ventricular arrhythmias. Purpose The purpose of this study was to assess if myocardial scar characterization could enhance the risk stratificatio…
View article: Atrioventricular-synchronous leadless pacemakers: a single center experience
Atrioventricular-synchronous leadless pacemakers: a single center experience Open
Background Leadless pacemakers allow atrioventricular (AV) synchronous pacing using a new software to detect atrial contraction with a 3- axis accelerometer. Notwithstanding, evidence supporting its use is still scarce and only limited rea…
View article: Atrial fibrillation catheter ablation: electroporation against high-power short duration radiofrequency
Atrial fibrillation catheter ablation: electroporation against high-power short duration radiofrequency Open
Background Pulmonary vein isolation (PVI) is one of the cornerstones of rhythm-control therapy for symptomatic atrial fibrillation (AF) patients. The new ablation technologies of pulse field ablation (PFA) and high-power short-duration rad…
View article: Duration of left and right atrial activation wavefront assessed non-invasively is significantly higher in patients with atrial fibrillation than in controls
Duration of left and right atrial activation wavefront assessed non-invasively is significantly higher in patients with atrial fibrillation than in controls Open
Introduction Ablation strategies in atrial fibrillation (AF) are currently a "one-size- fits- all" type of approach. Pulmonary vein isolation as the standard of care is not perfect, especially in the persistent forms, but none of the alter…
View article: Myocardial scar characteristics by 3D-LGE cannot fully explain different arrhythmic event rates in primary and secondary prevention of sudden cardiac death
Myocardial scar characteristics by 3D-LGE cannot fully explain different arrhythmic event rates in primary and secondary prevention of sudden cardiac death Open
Background There is a noticeable difference in the incidence of ventricular arrhythmias among patients receiving defibrillator devices (ICD or CRT-D) for primary vs. secondary prevention of sudden cardiac death (SCD). The underlying reason…
View article: Leadless vs. transvenous single-chamber pacing - propensity-matched comparison of outcomes
Leadless vs. transvenous single-chamber pacing - propensity-matched comparison of outcomes Open
Background Clinical Trials have demonstrated the safety and efficacy of the leadless pacemaker. However, real-world outcome comparisons between patients receiving conventional VVI and leadless pacemakers are still scarce. The aim of this s…
View article: Using the 3D architecture of scar to predict life-threatening ventricular arrythmias - still a long way to go
Using the 3D architecture of scar to predict life-threatening ventricular arrythmias - still a long way to go Open
Funding Acknowledgements Type of funding sources: None. Background Late gadolinium enhancement (LGE) has been proposed as an independent predictor of ventricular arrhythmias. Purpose The purpose of this study was to assess if myocardial sc…
View article: Left bundle branch area pacing versus biventricular pacing for cardiac resynchronisation therapy
Left bundle branch area pacing versus biventricular pacing for cardiac resynchronisation therapy Open
Funding Acknowledgements Type of funding sources: None. Background Conventional right ventricular pacing induces dyssynchrony and 20% of patients may need upgrade for resynchronisation therapy (CRT). Currently, left bundle branch area paci…
View article: Non-invasive electrocardiographic ventricular mapping based on the equivalent double layer model: different workflows, same accuracy
Non-invasive electrocardiographic ventricular mapping based on the equivalent double layer model: different workflows, same accuracy Open
Funding Acknowledgements Type of funding sources: None. Background and aim Electrocardiographic imaging (ECGI) is capable of performing activation maps with a single premature beat. The endo-epicardial ECGI system based on the equivalent d…
View article: Association between left ventricular wall-thickness by CT and endocardial voltage potentials in patients with ischemic cardiomyopathy
Association between left ventricular wall-thickness by CT and endocardial voltage potentials in patients with ischemic cardiomyopathy Open
Funding Acknowledgements Type of funding sources: None. Background Although cardiac magnetic resonance (CMR) is the gold standard for planning ventricular tachycardia (VT) ablation, its accuracy is hindered in patients with implanted cardi…
View article: Non-invasive electrocardiographic mapping using an endo-epicardial system based on extracellular potentials shows better accuracy for atrial arrhythmias than ventricular arrhythmias
Non-invasive electrocardiographic mapping using an endo-epicardial system based on extracellular potentials shows better accuracy for atrial arrhythmias than ventricular arrhythmias Open
Funding Acknowledgements Type of funding sources: Private hospital(s). Main funding source(s): Learning Health Background and aim Electrocardiographic imaging (ECGI) is capable of performing an activation map with a single beat. The endo-e…