Impact of catheter contact angle on lesion formation and durability of pulmonary vein isolation
This study is aimed to evaluate the impact of catheter contact angle on lesion formation and durability of pulmonary vein isolation (PVI).MethodsBoth in vitro experiment and retrospective observational study were conducted. For in vitro experiment, radiofrequency lesions were created on explanted swine hearts in three different catheter contact angles (0 °, 45°, and 90°). In the retrospective observational study, we assessed patients who had undergone repeat catheter ablation due to atrial fibrillation recurrence after initial PVI. When pulmonary vein (PV) reconnection was observed, we analyzed the previous abl...
Source: Journal of Interventional Cardiac Electrophysiology - January 26, 2022 Category: Cardiology Source Type: research

Correction to: Glycogen synthase kinase 3 beta inhibitor SB216763 improves Kir2.1 expression after myocardia infraction in rats
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 26, 2022 Category: Cardiology Source Type: research

The scar: the wind in the perfect storm —insights into the mysterious living tissue originating ventricular arrhythmias
ConclusionsScar represents the substrate of ventricular arrhythmias. CMR, defining scar presence and its features, may be a useful tool for guiding ablation procedures and for identifying patients at risk of SCD amenable to ICD therapy. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 24, 2022 Category: Cardiology Source Type: research

Feasibility and clinical efficacy of double suture-mediated closure device technique for hemostasis during positioning of miniaturized wireless pacemaker
ConclusionFemoral vein access closure using dual Perclose Proglide devices during TPS is feasible and clinically effective. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 21, 2022 Category: Cardiology Source Type: research

Intracardiac echocardiography guidance to increase diagnostic yield of endomyocardial biopsy of a cardiac mass
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 21, 2022 Category: Cardiology Source Type: research

Comparison of co-administration of amiodarone and rivaroxaban to co-administration of dronedarone and rivaroxaban for hemorrhage risks after atrial fibrillation ablation
ConclusionsCompared to co-administration of amiodarone and rivaroxaban, co-administration of dronedarone and rivaroxaban increases the risk of CRNMB but it does not increase the risk of major hemorrhages in blanking period after AF ablation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 20, 2022 Category: Cardiology Source Type: research

Randomized trial of intracardiac echocardiography-guided slow pathway ablation
AbstractPurposeRadiofrequency (RF) catheter ablation of the slow pathway (SP) in atrioventricular nodal reentry tachycardia (AVNRT) is highly effective; however, it may require prolonged fluoroscopy and RF time. We postulated that visualization of the SP region with intracardiac echocardiography (ICE) could decrease ablation time, minimize radiation exposure, and facilitate SP ablation compared to the standard, fluoroscopy-guided approach.MethodsIn our study, we randomized 91 patients undergoing electrophysiologic study and SP ablation for AVNRT into 2 groups: fluoroscopy-only (n = 48) or ICE-guided (n&thinsp...
Source: Journal of Interventional Cardiac Electrophysiology - January 19, 2022 Category: Cardiology Source Type: research

Junctional AV ablation in patients with atrial fibrillation undergoing cardiac resynchronization therapy (JAVA-CRT): results of a multicenter randomized clinical trial pilot program
ConclusionIn patients with permanent AF, reduced LVEF, and broad QRS who were eligible for CRT, there was insufficient evidence that AVJA improved echocardiographic or clinical outcomes; the results should be interpreted in light of a smaller than planned sample size. CRT, however, seemed to be effective in the combined study cohort overall, suggesting that CRT can be reasonably deployed in patients with AF.Trial registrationClinicalTrials.gov Identifier: NCT02946853. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 18, 2022 Category: Cardiology Source Type: research

Clinical impact of high-density mapping on the acute and long term outcome of atypical atrial flutter ablations
AbstractPurposeWe evaluated the clinical impact of the high-density (HD) mapping compared with the standard low-density (LD) ablation catheter mapping technique in the treatment of AFLs.MethodsWe retrospectively evaluated short and long outcomes of patients approached with an HD and a LD electro-anatomical strategy for atypical AFLs.ResultsEighty-seven patients were included. Patients were almost male (60%), relatively old (65  ± 8 years), with a moderate CHA2DS2Vasc score (2.3 ± 1.3), a preserved ejection fraction (58 ± 6), and moderate atrial dilatation ...
Source: Journal of Interventional Cardiac Electrophysiology - January 17, 2022 Category: Cardiology Source Type: research

Evaluation of arrhythmogenic foci using a novel automated detection algorithm and isoproterenol in persistent atrial fibrillation
ConclusionCARTOFINDER and ISP both reliably determined the presence of arrhythmogenic foci in PV, in patients with persistent AF. Knowledge of the nature of arrhythmogenic foci in non-PV is considered to be a topic for future studies, and further data collection is required. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 15, 2022 Category: Cardiology Source Type: research

Very low tidal volume, high-frequency ventilation in atrial fibrillation ablation: a systematic review
ConclusionWith a purpose of limiting thoracic excursion and cardiac movement, limited and sparse studies have shown improved outcomes with a very low tidal volume, high-frequency ventilation strategy. Additional studies are needed to solidify this easily accessible and widely available mode of ventilation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 14, 2022 Category: Cardiology Source Type: research

MiRNA21 and IL-18 levels in left atrial blood in patients with atrial fibrillation undergoing cryoablation and their predictive value for recurrence of atrial fibrillation
AbstractPurposeThe recurrence of atrial fibrillation (AF) after cryoablation still needs to be prioritized, including discriminating predictive indicators.MethodsEighty-seven patients aged 43 –83 years who underwent cryo-balloon ablation were divided into paroxysmal atrial fibrillation (PAF) and non-paroxysmal atrial fibrillation (non-PAF) groups. Baseline data, intraoperative index, and miRNA21, IL-18, NLRP3, and visfatin levels in peripheral venous blood and left atrial blood were a ssessed. Follow-up was performed for 6 months to observe the recurrence of AF. A Cox risk ratio model was used to analyze in...
Source: Journal of Interventional Cardiac Electrophysiology - January 14, 2022 Category: Cardiology Source Type: research

Recurrent atrial arrhythmia in a randomised controlled trial comparing contact force –guided and contact force–blinded ablation for typical atrial flutter
ConclusionsContact force –guided ablation for typical atrial flutter does not reduce recurrent atrial arrhythmia after 12-month follow-up as compared with ablation blinded for contact force.Graphical abstract (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 13, 2022 Category: Cardiology Source Type: research

Ventricular versus atrial side ablation for treatment of atrioventricular accessory pathways: a randomized controlled clinical trial
ConclusionsSuccess of catheter ablation of APs is higher where V  >  A (ventricular site of AP), indicating the priority of the ventricular edge of the mitral ring for a better outcome. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 11, 2022 Category: Cardiology Source Type: research

Header bonding failure in a prepectoral implantable cardioverter-defibrillator
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 10, 2022 Category: Cardiology Source Type: research

Pulmonary vein isolation through trans-jugular approach in a patient with inferior vena cava interruption
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 10, 2022 Category: Cardiology Source Type: research

Beyond pulmonary vein isolation for persistent atrial fibrillation: sequential high-resolution mapping to guide ablation
ConclusionsIndividualized mapping to guide AF ablation appears to achieve significantly greater AF-free survival compared to conventional PVI when applied as a primary ablation treatment. The results of this pilot study need to be confirmed in a larger, randomized trial. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 8, 2022 Category: Cardiology Source Type: research

Impact of power and contact force on index-guided radiofrequency lesions in an ex vivo porcine heart model
ConclusionSize and morphology of index-guided radiofrequency lesions varied significantly with different power and CF settings. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 8, 2022 Category: Cardiology Source Type: research

Relationship between the time point of left atrial size change and the outcomes of radiofrequency catheter ablation
AbstractPurposeThe change in the left atrial anteroposterior diameter (LAD) after radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) has become an independent factor in predicting the postoperative curative effect; however, whether the specific time point of this change is related to the postoperative curative effect is unclear. The purpose of this study was to explore the correlation between the specific time point of LAD change and the recurrence of AF 1  year after RFCA.MethodsPatients with AF who underwent RFCA in our hospital from July 2016 to May 2020 were enrolled in the study. The patients we...
Source: Journal of Interventional Cardiac Electrophysiology - January 7, 2022 Category: Cardiology Source Type: research

Acute efficacy of contiguous versus temporally discontiguous point-by-point radiofrequency pulmonary vein isolation in patients with paroxysmal atrial fibrillation: a randomized study
ConclusionTemporally discontiguous deployment of RF lesions is not associated with lower procedural PVI efficacy when strict criteria for interlesion distance and ablation index are applied. The development of local edema around each ablation site does not prevent effective RF lesion formation at adjacent positions.Trial registrationclinicaltrials.gov (NCT03332862). (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 6, 2022 Category: Cardiology Source Type: research

Three-dimensional mapping, recording and ablation in simulated and induced ventricular tachyarrhythmias during mechanical circulatory support using the percutaneous heart pump
ConclusionsEndocardial and epicardial 3D mapping  and RFA in the presence of PHP are feasible and offer significant MCS during simulated VT/VFL and VF. Furthermore, PHP yielded no electrogram noise/artifact, EMI, or 3D mapping distortions in conjunction with magnetic-based 3D mapping systems. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 6, 2022 Category: Cardiology Source Type: research

Differences in the durability of left atrial posterior wall isolation based on the isolation process
This study aimed to examine the differences in the durability of PWI based on the isolation process and the predictors of the reconduction of PWI.MethodsAmong the 221 patients (mean age, 65  ± 11 years) with consecutive non-paroxysmal atrial fibrillation (AF) who completed PVI and PWI, 50 patients undergoing repeat AF ablation were enrolled and divided into the following groups based on how PWI was achieved at the initial procedure: by only the first line on the roof and floor li ne (group A), by additional gap ablation to the first line or second liner ablation next to the first line (group B), a...
Source: Journal of Interventional Cardiac Electrophysiology - January 5, 2022 Category: Cardiology Source Type: research

Double transition sign —a marker of left bundle branch capture during physiological pacing
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 5, 2022 Category: Cardiology Source Type: research

The person has no left atrial appendage by nature: a rare anatomical cardiac condition
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 5, 2022 Category: Cardiology Source Type: research

Atrial fibrillation driver identification through regional mutual information networks: a modeling perspective
AbstractPurposeEffective identification of electrical drivers within remodeled tissue is a key for improving ablation treatment for atrial fibrillation. We have developed a mutual information, graph-based approach to identify and propose fault tolerance metric of local efficiency as a distinguishing feature of rotational activation and remodeled atrial tissue.MethodsVoltage data were extracted from atrial tissue simulations (2D Karma, 3D physiological, and the Multiscale Cardiac Simulation Framework (MSCSF)) using multi-spline open and parallel regional mapping catheter geometries. Graphs were generated based on varied mut...
Source: Journal of Interventional Cardiac Electrophysiology - January 4, 2022 Category: Cardiology Source Type: research

Intraoperative sensing increase predicts long-term pacing threshold in leadless pacemakers
In this study, we evaluated if intraoperative electrical parameters recorded during Micra ™ VR implant would be able to predict device performance during follow-up (FU).MethodsA total of 93 patients undergoing Micra ™ VR implant were retrospectively considered. Patients were enrolled in the study if electrical assessment was performed at least twice at implant, at Micra™ final positioning and after removal of the delivery system. All patients received a FU visit at 1 and 12 month after discharge. R-wave se nsing amplitude, pacing threshold (PT), and impedance were recorded at each visit.ResultsWhen c...
Source: Journal of Interventional Cardiac Electrophysiology - January 4, 2022 Category: Cardiology Source Type: research

Interventional electrophysiology at a crossroads
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 3, 2022 Category: Cardiology Source Type: research

Precaval bundle re-entry atrial tachycardia: a variant of upper loop re-entry
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - January 3, 2022 Category: Cardiology Source Type: research

Ultra-high-density mapping and ablation strategy for multiple scar-related right atrial tachycardias in patients without previous cardiac surgery
ConclusionsMultiple scar-related RA ATs were observed in patients without previous cardiac surgery. The detailed activation patterns of these ATs could be clearly demonstrated by using an ultra-high-density mapping system. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 16, 2021 Category: Cardiology Source Type: research

Quality of life and symptoms in patients selected for ablation of ventricular extrasystoles: a prospective study
AbstractPurposeEvaluation of the impact of catheter ablation for ventricular extrasystoles (VES) in structurally normal hearts on quality of life (QOL) and symptomatology.MethodsSymptom analysis assessed with a disease-specific questionnaire, EHRA score for AF, and QOL analysis at baseline and 1  year after ablation.ResultsThe study enrolled 39 patients between April 2016 and November 2019. Two patients were excluded from further analysis.  At baseline, palpitations were reported in 31/37 (84%); syncope in 12/37 (32%); other cardiac symptoms in 33/37 (89%) of patients. The EHRA score was 3 or 4 in 13 patients (35...
Source: Journal of Interventional Cardiac Electrophysiology - December 2, 2021 Category: Cardiology Source Type: research

Effectiveness of SharpSense ™ algorithms in reducing bradycardia and pause detection: real-world performance in Confirm Rx™ insertable cardiac monitor
ConclusionsIn this real-world performance evaluation, the algorithms incorporated in SharpSense software upgrade in Confirm Rx ICMs substantially reduced false positive bradycardia and pause detections and the number of transmitted SECGs for clinic review. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 2, 2021 Category: Cardiology Source Type: research

Key characteristics for effective acute pulmonary vein isolation when using a novel cryoballoon technology: insights from the CHARISMA registry
ConclusionsThe new POLARx ™ CB appears to be effective and safe. A nadir temperature of − 56 °C, a thaw time to 0 °C ≥ 17 s, and complete PV occlusion were the best predictors of acute PV isolation.Clinical trial registrationCatheter Ablation of Arrhythmias with a High-Density Mapping System in Real-World Practice (CHARISMA). URL:http://clinicaltrials.gov/Identifier: NCT03793998. Registration date: January 4, 2019. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 2, 2021 Category: Cardiology Source Type: research

Quality of life and symptoms in patients selected for ablation of ventricular extrasystoles: a prospective study
AbstractPurposeEvaluation of the impact of catheter ablation for ventricular extrasystoles (VES) in structurally normal hearts on quality of life (QOL) and symptomatology.MethodsSymptom analysis assessed with a disease-specific questionnaire, EHRA score for AF, and QOL analysis at baseline and 1  year after ablation.ResultsThe study enrolled 39 patients between April 2016 and November 2019. Two patients were excluded from further analysis.  At baseline, palpitations were reported in 31/37 (84%); syncope in 12/37 (32%); other cardiac symptoms in 33/37 (89%) of patients. The EHRA score was 3 or 4 in 13 patients (35...
Source: Journal of Interventional Cardiac Electrophysiology - December 2, 2021 Category: Cardiology Source Type: research

Effectiveness of SharpSense ™ algorithms in reducing bradycardia and pause detection: real-world performance in Confirm Rx™ insertable cardiac monitor
ConclusionsIn this real-world performance evaluation, the algorithms incorporated in SharpSense software upgrade in Confirm Rx ICMs substantially reduced false positive bradycardia and pause detections and the number of transmitted SECGs for clinic review. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 2, 2021 Category: Cardiology Source Type: research

Key characteristics for effective acute pulmonary vein isolation when using a novel cryoballoon technology: insights from the CHARISMA registry
ConclusionsThe new POLARx ™ CB appears to be effective and safe. A nadir temperature of − 56 °C, a thaw time to 0 °C ≥ 17 s, and complete PV occlusion were the best predictors of acute PV isolation.Clinical trial registrationCatheter Ablation of Arrhythmias with a High-Density Mapping System in Real-World Practice (CHARISMA). URL:http://clinicaltrials.gov/Identifier: NCT03793998. Registration date: January 4, 2019. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 2, 2021 Category: Cardiology Source Type: research

Reliability and longevity of implantable defibrillators
AbstractPurposeWe hypothesized that data in manufacturers ’ product performance reports (PPRs) can provide clinically valuable ICD and cardiac resynchronization defibrillator (CRT-D) reliability and longevity information.MethodsData were obtained from 2019 PPRs. Kaplan-Meier (K-M) probabilities of freedom from malfunction, normal battery depletion (NBD), and NBD + malfunction were calculated for ICD and CRT-D pulse generators (PGs) with LiMnO2 or LiSVO/CFx batteries marketed in the USA from 2010 to 2019 and compared using the log-rank test. Malfunctions (MAL) included PGs that were found outside specifications.Result...
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Ablation for paroxysmal atrial fibrillation —real-life results from a middle-volume electrophysiology laboratory
ConclusionsThis real-life observational study from a medium volume EP center shows that progress in PAF ablation, especially RF, reported by highly-skilled centers, can be reproduced in real life by less experienced operators. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Impact of a high-density grid catheter on long-term outcomes for structural heart disease ventricular tachycardia ablation
ConclusionsThis study highlights a step-wise improvement in survival free from ICD therapies as the density of mapping capability increases. By using a high-density mapping catheter and combining complementary mapping strategies in a strict procedural workflow, long-term clinical outcomes are improved. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Highlights and comments on EHRA/HRS/APHRS/LAHRS expert consensus on risk assessment in cardiac arrhythmias: use the right tool for the right outcome
AbstractPatients with heart disease, or at high risk of developing a cardiac condition, usually undergo risk assessment by primary care physicians, internal medicine doctors, or cardiologists. There are several methods that can be used for this risk assessment, and their applicability differs with respect to availability, complexity, and usefulness in different geographic populations. This document focuses on some of the many relevant clinical topics recently presented in the “Expert Consensus on Risk Assessment in Cardiac Arrhythmias: Use the Right Tool for the Right Outcome,” which include statements based on...
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Catheter ablation of ventricular tachycardia in patients with electrical storm, with a special focus on patients with Chagas disease
AbstractBackgroundThere are few reports on the benefits of catheter ablation (CA) in patients with electrical storm (ES). None of these publications included patients with Chagas disease (ChD). Our aims are  to analyze (1) all the cases of ES treated with CA and (2) the subgroup of patients with ChD.MethodsProspective analysis of consecutive patients with ES due to monomorphic ventricular tachycardia (VT) treated with CA.ResultsWe included 38 patients: 28 males; median age of 63.5 (IQR 55 –71) years old; ejection fraction (LVEF) 0.30 (0.25–0.40). Sixteen patients (42.1%) had ChD. The patients experienced 2...
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Cryoballoon vs radiofrequency ablation of atrial fibrillation: insights from the Veterans Healthcare System
AbstractPurposeCatheter ablation is considered the mainstay treatment for drug-refractory atrial fibrillation (AF). The aims of our study were to compare the efficacy and safety of the most two currently approved approaches (point-by-point radiofrequency ablation (RFA), either with contact force (CF) or without contact force (nCF) catheters, and cryoballoon ablation (CBA)) in the Veterans Healthcare System.MethodsWe performed a retrospective study of patients who underwent ablation for treatment of AF at the veterans affairs healthcare system between 2013 and 2018. Only the first reported ablation procedure was included.Re...
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

High-density versus low-density mapping in ablation of atypical atrial flutter
The objective of the present study was to explore whether employing HD mapping leads to a more favorable outcome in ablation of AAFL.MethodsWe compared baseline and procedural characteristics, procedural success, safety and outcome of mapping and ablation of atypical flutter in three groups. (1) HD Grid catheter + the high-density electroanatomical mapping (EAM) system EnSite Precision; (2) standard 10-pole circular mapping catheter (CMC) + EnSite Precision; (3) CMC + the low-density EnSite Velocity EAM. Voltage and propagation maps were constructed.ResultsMapping of 142 AAFL in 82 patients was performed. Acute ablation su...
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Safety and efficacy of His-bundle pacing/left bundle branch area pacing versus right ventricular pacing: a systematic review and meta-analysis
ConclusionPhysiologic pacing (HBP/LBBaP) might be a better strategy than RVP and improve long-term clinical outcomes like cardiac function. Although LBBaP appears to have some advantages over HBP, the long-term benefits are still controversial. More large-scale randomized clinical trials are needed for further verification. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

A prospective multi-site registry of real-world experience of catheter ablation for treatment of symptomatic paroxysmal and persistent atrial fibrillation (Real-AF): design and objectives
DiscussionReal-AF ’s multiple data sources and detailed procedural information, emphasis on high volume operators, inclusion of low fluoroscopy operators, and use of rigorous standardized follow-up methodology allow systematic documentation of clinical outcomes associated with changes in ablation workflow and techn ologies over time. Timely data sharing may enable real-time quality improvements in patient care and delivery.Trial registrationClinicaltrials.gov: NCT04088071 (registration date: September 12, 2019) (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Radiofrequency catheter ablation of ventricular tachycardia from the left ventricular summit in congenital heart disease
We present the successful treatment of a 7-years-old child with history of PA-VSD treated by surgical correction and ventricular tachycardia from an unusual anatomic place in the left ventricle summit (LVS), using catheter ablation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Current status of pediatric electrophysiology in Latin America: a LAHRS survey
ConclusionsPediatric electrophysiology is present as a subspecialty in half of the countries in Latin America, and all the current electrophysiology procedures and therapeutic technologies are available in most Latin American countries. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Epicardial ablation of incessant left atrial appendage tachycardia in a case with tachycardiomyopathy
AbstractAtrial tachycardias originated at the left atrial appendage (LAA) are uncommon; often they are incessant and might induce tachycardiomyopathy, as discussed by Hillock et al. (Heart Rhythm;3(4):467 –469,2006). A case of a 21-year-old woman with incessant atrial tachycardia is presented, refractory to medical therapy, echocardiography showed global dilation with LV ejection fraction of 20%. After two failed endocardial ablations, an epicardial access was attempted. The earliest activation site was located at the tip of the epicardial aspect of the LAA. RFCA was successful at this site. The patient remains asymp...
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

A novel disinfection protocol using ATP testing for lead garments in the electrophysiology lab
ConclusionsLead garments harbor microbial contamination after use according to ATP testing. A sanitary intervention can decontaminate lead garments and potentially reduce rates of hospital infection. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research

Segmental fascicular block during physiological pacing
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - December 1, 2021 Category: Cardiology Source Type: research