Publications by authors named "Gianfranco Mitacchione"

Aims: The third-generation laser balloon (LB3) is an established ablation device for pulmonary vein isolation (PVI) that allows direct visualization of the anatomical target. Equipped with an automatic circumferential laser delivery modality, it aims at continuous circumferential PVI, improving both acute and clinical outcomes. We sought to evaluate the clinical efficacy of LB3 ablation using an anatomical-based approach without verifying electrical isolation.

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  • - The study analyzed outcomes of leadless pacemakers (LPMs) in patients with varying stages of chronic kidney disease (CKD) collected from the international i-LEAPER registry, focusing on major complications and electrical performance post-implantation.
  • - Results indicated that while patients with CKD experienced similar rates of major complications during and after LPM implantation compared to those with normal kidney function, all-cause mortality was notably higher in severe CKD stages (G4/G5).
  • - Additionally, patients with CKD displayed a slightly increased pacing threshold during the initial follow-up month, but overall, LPM electrical performance remained comparable across all groups. The research suggests that patients with advanced CKD are less frequently represented in LPM procedures despite
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  • This study investigated patients with Brugada syndrome (BrS) who received implantable loop recorders (ILR) to monitor their heart rhythms.
  • Out of 147 patients, 29% received ILRs, while some got implantable cardioverter-defibrillators (ICD) or continued regular follow-up.
  • Results showed that ILR patients had more episodes of suspected arrhythmic syncope and gene mutations and were generally younger; continuous monitoring helped diagnose rhythm issues without any reported adverse effects.
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  • * The review aims to explore how fibrosis contributes to genetically determined AF to enhance understanding of its underlying mechanisms and inform treatment strategies, even for non-genetic forms of the condition.
  • * Researchers will examine both genetic and epigenetic factors leading to AF and how they relate to atrial fibrosis, while drawing comparisons to non-genetic AF and discussing potential therapeutic approaches.
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  • LVADs are becoming more popular for treating advanced heart failure, and this study examines patients who had a subcutaneous ICD prior to LVAD surgery.
  • The research involved 30 patients with a median age of 45, focusing on the performance and complications of using both devices together, with follow-up averaging 7 months.
  • Results showed high compatibility but highlighted issues like electromagnetic interference affecting device sensing, leading to inappropriate shocks in some patients; careful monitoring for these problems is essential.
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  • This study analyzed sex-related differences in patients undergoing leadless pacemaker (LPM) implantation, utilizing data from the i-LEAPER registry.
  • Despite a male majority (64.3%), results showed no significant differences in major complication rates or all-cause mortality between men and women after matching for age and comorbidities.
  • While female patients had higher pacing impedance, this difference did not affect overall device performance, and both sexes maintained comparable electrical parameters within normal limits throughout the follow-up period.
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The number of cardiac implantable electronic device (CIED) implantations has increased over recent years as a result of population growth, increasing life expectancy, adoption of guidelines, and better access to healthcare. Device-related infection is, however, one of the most serious complications of CIED therapy associated with significant morbidity, mortality, and financial healthcare burden. Although many preventive strategies such as administration of intravenous antibiotic therapy before implantation are well recognized, uncertainties still exist about other regimens.

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Cardiac resynchronization therapy (CRT) via biventricular pacing (BVP) is a well-established therapy for patients with heart failure with reduced ejection fraction and left bundle branch block, who remain symptomatic despite optimal medical therapy. Despite the long-standing clinical evidence, as well as the familiarity of cardiac electrophysiologists with the implantation technique, CRT via BVP cannot be achieved or may result ineffective in up to one-third of the patients. Therefore, new alternative techniques, such as conduction system pacing and left ventricular pacing, are emerging as potential alternatives to this technique, not only in case of BVP failure, but also as a stand-alone first choice due to several potential advantages over traditional CRT.

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  • The authors are requesting corrections to their previously published paper.
  • These corrections are necessary to ensure the accuracy and integrity of the information presented.
  • The specific details of the changes being requested are outlined in the following sections.
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  • Transvenous lead extraction (TLE) is generally safe and effective for patients with cardiac devices, but long-term outcomes have not been extensively studied.
  • This study analyzed 191 patients who underwent TLE from 2014 to 2016, focusing on long-term survival and factors influencing outcomes, particularly differentiating between infections and non-infection reasons for the procedure.
  • Results revealed that patients with infections had significantly worse event-free survival rates and higher mortality compared to those with non-infection cases, with specific indicators like vegetation and positive blood cultures linked to poorer prognoses.
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The feasibility and effectiveness of virtual visits (VVs) for cardiac electrophysiology patients are still unknown. We aimed to assess the feasibility and effectiveness of VVs as compared to in-person visits, and to describe patient experience with virtual care in clinical electrophysiology. We prospectively enrolled patients scheduled to receive a clinical electrophysiology evaluation, dividing them in two groups: a VV group and an in-person visit group.

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Background: Limited data on the real-world safety and efficacy of leadless pacemakers (LPMs) post-transvenous lead extraction (TLE) are available.

Objective: The purpose of this study was to assess the long-term safety and effectiveness of LPMs following TLE in comparison with LPMs de novo implantation.

Methods: Consecutive patients who underwent LPM implantation in 12 European centers joining the International LEAdless PacemakEr Registry were enrolled.

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Since its inception cardiac electrical therapy has evolved, with transvenous pacemakers (PMs) and implantable cardiac defibrillators (ICDs) providing significant benefits in terms of improved quality of life and reducing mortality in patients with cardiac conduction disturbances and/or requiring protection against ventricular arrhythmias [...

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Background: Although cryoablation (CA) of septally located accessory pathways (APs) is an established treatment for Wolff-Parkinson-White Syndrome, its major limitation is the lack of data regarding long-term follow-up (FU). The present study sought to investigate long-term outcomes of a specific CA protocol targeting para-Hisian (P-H) and mid-septal (M-S) APs.

Methods: Twenty-six patients who previously underwent CA of PH or MS APs from 2004 to 2014, were prospectively considered to receive a FU during 2021.

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(1) Background: Leadless (LL) stimulation is perceived to lower surgical, vascular, and lead-related complications compared to transvenous (TV) pacemakers, yet controlled studies are lacking and real-life experience is non-conclusive. (2) Aim: To prospectively analyse survival and complication rates in leadless versus transvenous VVIR pacemakers. (3) Methods: Prospective analysis of mortality and complications in 344 consecutive VVIR TV and LL pacemaker recipients between June 2015 and May 2021.

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Background: Available reports on the post-discharge management of atrial fibrillation (AF) in COVID-19 patients are scarce. The aim of this case series was to describe the clinical outcomes of new-onset AF in COVID-19 patients referred to a tertiary cardiac arrhythmia center after hospital discharge.

Methods: All consecutive patients referred to our center for an ambulatory evaluation from 18 May 2020 to 15 March 2022 were retrospectively screened.

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Background: Age-related differences on leadless pacemaker (LP) are poorly described. Aim of this study was to compare clinical indications, periprocedural and mid-term device-associated outcomes in a large real-world cohort of LP patients, stratified by age at implantation.

Methods: Two cohorts of younger and older patients (≤50 and > 50 years old) were retrieved from the iLEAPER registry.

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Introduction: The prevalence and impact of pulmonary embolism (PE) in patients with lead-related infective endocarditis undergoing transvenous lead extraction (TLE) are unknown.

Methods: Twenty-five consecutive patients with vegetations ≥10 mm at transoesophageal echocardiography were prospectively studied. Contrast-enhanced chest computed tomography (CT) was performed before (pre-TLE) and after (post-TLE) the lead extraction procedure.

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Background: The absence of pacing capabilities may reduce the appeal of subcutaneous implantable cardioverter-defibrillator (S-ICD) devices for patients at risk for conduction disorders or with antitachycardia pacing (ATP)/cardiac resynchronization (CRT) requirements. Reports of rates of S-ICD to transvenous implantable cardioverter-defibrillator (TV-ICD) system switch in real-world scenarios are limited.

Objective: The purpose of this study was to investigate the need for a subsequent transvenous (TV) device in patients implanted with an S-ICD and its predictors.

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Background: Transvenous lead extraction is the standard therapy for cardiac device-related infection. In some patients, however, a hybrid surgical and transvenous approach may be necessary.

Methods And Results: We present three cases who underwent transvenous lead extraction for an infected CRT-D system.

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Superior vena cava (SVC) syndrome is a rare disease induced by thrombosis and consequent occlusion of SVC, negatively affecting morbidity and mortality. The incidence of SVC syndrome from central venous catheters and pacemaker or defibrillator leads is increasing. Optimal treatment of pacemaker or defibrillator-related SVC syndrome is not well defined.

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Background: Transvenous pacing is nowadays the cornerstone of interventional management of bradyarrhythmias. It is still associated, however, with significant complications, mostly related to indwelling transvenous leads or device pocket. In order to reduce these complications, leadless pacemakers have been recently introduced into clinical practice, but no guidelines are yet available to indicate who are those patients that might benefit the most and whether leadless pacing should be preferred in the old or young population.

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