Substrate Mapping for Ventricular Tachycardia Ablation Through High-Density Whole-Chamber Double Extra Stimuli: The S3 Protocol.

Background: A partial delineation of targets for ablation of ventricular tachycardia (VT) during a stable rhythm is likely responsible for a suboptimal success rate. The abnormal low-voltage near-field functional components may be hidden within the high-amplitude far-field signal.

Objectives: The aim of this study was to evaluate the benefit and feasibility of functional substrate mapping using a full-ventricle S3 protocol and to assess its colocalization with arrhythmogenic conducting channels (CCs) on late gadolinium enhancement cardiac magnetic resonance.

Personalized voltage maps guided by cardiac magnetic resonance in the era of high-density mapping.

Background: Voltage mapping could identify the conducting channels potentially responsible for ventricular tachycardia (VT). Standard thresholds (0.5-1.

Catheter Ablation of Ventricular Tachycardia in Ischemic Heart Disease: What Is Known and New Perspectives.

Purpose Of The Review: This review aims to evaluate current evidence regarding ventricular tachycardia ablation in patients with ischemic heart disease and explore novel approaches currently developing to improve procedural and long-term outcomes.

Recent Findings: Recently published trials (PARTITA, PAUSE-SCD, and SURVIVE-VT) have demonstrated the prognostic benefit of prophylactic ventricular tachycardia ablation compared to current clinical practice. Advanced cardiac imaging provides a valuable pre-procedural evaluation of the arrhythmogenic substrate, identifying ablation targets non-invasively.

Non-invasive detection of slow conduction with cardiac magnetic resonance imaging for ventricular tachycardia ablation.

Aims: Non-invasive myocardial scar characterization with cardiac magnetic resonance (CMR) has been shown to accurately identify conduction channels and can be an important aid for ventricular tachycardia (VT) ablation. A new mapping method based on targeting deceleration zones (DZs) has become one of the most commonly used strategies for VT ablation procedures. The aim of the study was to analyse the capability of CMR to identify DZs and to find predictors of arrhythmogenicity in CMR channels.

Outcomes of transvenous lead extraction in octogenarians using bidirectional rotational mechanical sheaths.

Background: Outcomes of transvenous lead extraction (TLE) are well reported in the general population, However, data on safety, efficacy of TLE in octogenarians with a long lead dwell time, using powered extraction tools are limited. The aim of this multicenter study was to evaluate the safety, effectiveness of TLE in octogenarians using the bidirectional rotational mechanical sheaths and mid-term outcome after TLE.

Methods: The study population comprised 83 patients (78.

Intermuscular two-incision technique for implantation of the subcutaneous implantable cardioverter defibrillator: a 3-year follow-up.

Purpose: The aim of the present study was to evaluate the outcome of patients underwent subcutaneous implantable cardioverter defibrillator (S-ICD) implantation with the intermuscular (IM) two-incision technique during 3-year follow-up.

Methods: the study population consisted of 105 consecutive patients (79 male; median 50 [13-77] years) underwent S-ICD implantation with the IM two-incision technique. The composite primary end point of the study consisted of device-related complications and inappropriate shocks (IAS).

Subcutaneous implantable cardioverter defibrillator after transvenous lead extraction: safety, efficacy and outcome.

Background: Subcutaneous implantable cardioverter defibrillator (S-ICD) is a suitable alternative for transvenous ICD (TV-ICD) patients who have undergone transvenous lead extraction (TLE). Limited data are available on the outcome of S-ICD patients implanted after TLE. We assessed the safety, efficacy, and outcome of S-ICD implantation after TLE of TV-ICD.

New-Onset Exertional Dyspnea in a Young Patient With Previous Blunt Chest Trauma.

A 16-year-old male patient was admitted to our Cardiology Department for new-onset exertional dyspnea (NYHA functional class II-III). He had no family history of cardiovascular diseases, no cardiovascular risk factors, and an unremarkable medical history, except for a blunt chest trauma after a motorbike accident 2 years earlier.

The valuable interaction among cardiac surgeon and electrophysiologist for transvenous rotational mechanical lead extraction.

Background: Recent studies have shown that Evolution RL bidirectional rotational mechanical sheath (Cook Medical, USA) is an effective and safe technique for transvenous lead extraction (TLE). We reported our experience with the bidirectional rotational mechanical tools using a multidisciplinary approach highlighting the value of a joint cardiac surgeon and electrophysiologist collaboration.

Methods: The study population comprised 84 patients (77% male; mean age 65 ± 18 years) undergoing TLE.

Extraction of a very old His bundle pacing lead: A safe and effective procedure?

Permanent His bundle pacing (HBP) has rapidly been adapted into clinical practice in recent years as a physiologic pacing. The 3830 (Medtronic Inc, MN, USA) pacing lead commonly used for HBP is lumenless, and there are limited reports available on extraction of this lead. No data exists on transvenous lead extraction (TLE) of very old HBP lead.

Successful jugular implantable defibrillator lead extraction with bidirectional rotational mechanical sheath.

Bidirectional rotational mechanical sheath is an effective and safe technique for transvenous lead extraction of chronically implanted leads. However, data about powered mechanical sheath through jugular vein are lacking. Our report demonstrated that bidirectional rotational mechanical sheath represents an effective and safe approach for removal of chronically implanted jugular leads.