Effect of closed loop stimulation versus accelerometer on outcomes with cardiac resynchronization therapy: the CLASS trial
ConclusionsIn patients with HFrEF and CI implanted with a CRT-D, peak HR, peak VO2, and 6MWD were equivalent, while there was a trend toward improved quality of life in CLS as compared to DDDR.Clinical trial registrationURL:https://www.clinicaltrials.gov. Unique identifier: NCT02693262. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - August 5, 2020 Category: Cardiology Source Type: research

Impedance mapping with constant contact force on 3D electroanatomic map to characterize tissues at pulmonary veno-atrial junction
ConclusionsIm mapping of LA-PVJ at constant CF added to 3DEAM may consistently track the tissue transition from PV to LA. PVan identified by Im was often located more toward LA than the 3D anatomical PVan, particularly in LSPV, suggesting the potential advantage of avoiding ablation of venous-like tissue. Im mapping can deserve further investigation for target characterization at LA-PVJ. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - August 4, 2020 Category: Cardiology Source Type: research

His bundle pacing for cardiac resynchronization therapy: a systematic literature review and meta-analysis
AbstractBackgroundPermanent His bundle pacing has been to shown to be an alternative for the patients with CRT indications and more recently has been evaluated for feasibility as a first-line strategy. Data on His bundle pacing (HBP) for cardiac resynchronization therapy are largely limited to small single-center reports, and clinical benefits and risks have not been systematically examined. The purpose of this study was to systematically review published studies of HBP for cardiac resynchronization therapy and evaluate the feasibility and efficacy of the therapy.MethodsPubMed, Cochrane Library, Embase, CNKI, and WANFANG d...
Source: Journal of Interventional Cardiac Electrophysiology - August 3, 2020 Category: Cardiology Source Type: research

Does the use of intracardiac echocardiography during atrial fibrillation catheter ablation improve outcomes and cost? A nationwide 14-year analysis from 2001 to 2014
We describe trends of ICE use, impact on complications, and its in-hospital outcomes.MethodsThe national in-patient sample database was queried from 2001 to 2014 for diagnosis of AF based on ICD-9-CM 427.31 with a catheter ablation procedure code (37.34) in the same hospitalization and its associated complications. ICE was identified using ICD-9-CM procedure code (37.28). Statistical Analysis System (SAS) was used for analysis.ResultsThere was an estimated total 299,152 patients who underwent AF ablation from 2001 to 2014 of which ICE was used in 46,688 (15.6%) patients. The use of ICE significantly increased from 0.08% in...
Source: Journal of Interventional Cardiac Electrophysiology - August 2, 2020 Category: Cardiology Source Type: research

Transseptal use of high-density grid catheter for VT mapping and retrograde hemodynamic support with Impella pump in presence of Mitraclips
ConclusionsThis case demonstrates the feasibility of the transseptal approach of VT mapping used HD Grid catheter and retrograde hemodynamic support with Impella Pump for VT treatment in patients after Mitraclips implantation. To avoid a damage of the MV and Mitraclips, 3D-TEE is advisable. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 28, 2020 Category: Cardiology Source Type: research

Challenges in catheter ablation of deep myocardial substrate for ventricular tachycardia
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 28, 2020 Category: Cardiology Source Type: research

Initial experience with fractionation mapping –guided ablation strategy in patients with long-standing persistent atrial fibrillation
ConclusionsThis pilot study demonstrates that fractionation mapping –guided ablation may provide an adjunctive benefit in terms of acute AF termination in patients with LSPAF. These results should be confirmed by larger, randomized, comparison studies between linear ablation and extended ablation without elimination of electrograms (EGMs) with fractionation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 25, 2020 Category: Cardiology Source Type: research

Comparison between leadless and transvenous single-chamber pacemaker therapy in a referral centre for lead extraction
AbstractPurposeThe aim of the study was to compare the long-term clinical and electrical performance of Micra leadless pacemaker with transvenous single-chamber pacemaker (TV-VVI PM) in a high-volume centre for transvenous lead extraction (TLE).MethodsOne-hundred patients (group 1) undergoing Micra implant were matched with 100 patients undergoing TV-VVI PM implant (group 2) by age, sex, left ventricular systolic ejection fraction and previous TLE.ResultsThe implant procedure was successful in all patients. In group 1, the procedure duration was lower than in group 2 (43.86  ± 22.38 vs 58.38 &pl...
Source: Journal of Interventional Cardiac Electrophysiology - July 25, 2020 Category: Cardiology Source Type: research

Recommendations of the current guidelines for implantable cardioverter-defibrillator implantation in patients with hypertrophic cardiomyopathy: Debate still exists
AbstractSudden cardiac death (SCD) related to ventricular arrhythmias is the most disastrous consequence of hypertrophic cardiomyopathy (HCM). Hence, clinicians seek to identify the highest risk patients that have the greatest potential to benefit from an implantable cardioverter-defibrillator (ICD) for primary prevention; nonetheless, this is where controversies begin as the 2011 American College of Cardiology Foundation/American Heart Association and the 2014 European Society of Cardiology guidelines have significant discrepancies. These guidelines propose clinically and statistically oriented algorithms, respectively, f...
Source: Journal of Interventional Cardiac Electrophysiology - July 25, 2020 Category: Cardiology Source Type: research

Potential therapeutic effects of electrogram-guided cardioneuroablation in long QT syndrome: case series
ConclusionsThe present case series reports a new ablation strategy systematically targeting autonomic GPs in LQTS patients. CNA shortens QTc (through sympathetic modulation) and increases heart rate. Although promising, these preliminary results need to be confirmed in the larger prospective study. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 23, 2020 Category: Cardiology Source Type: research

Device related thrombosis after left atrial appendage occlusion: does thrombus location always predicts its origin?
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 23, 2020 Category: Cardiology Source Type: research

Tachycardia cycle length alternans in orthodromic reciprocating tachycardia due to mutually dependent dual AV node physiology and retrograde supernormal conduction
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 21, 2020 Category: Cardiology Source Type: research

Screening and functional analysis of differentially expressed lncRNAs in rapid atrial pacing dog atrial tissue
ConclusionsIn summary, our study enhances our understanding of the biological functions of AF-related lncRNAs by screening and analyzing differentially expressed lncRNAs, and the results help to enrich the theoretical basis for the treatment of atrial fibrillation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 15, 2020 Category: Cardiology Source Type: research

Predictors of conduction recovery after permanent pacemaker implantation following transcatheter aortic valve replacement
ConclusionsOne-third of patients receiving new PPM implantation have conduction recovery after TAVR, with 50% occurring within the first 6  months. Patient gender, valve size, and rhythm on serial ECGs after TAVR can help identify patients that may recover AV conduction. A conservative approach rather than immediate PPM implantation may be considered in these patients. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 15, 2020 Category: Cardiology Source Type: research

Applicability of computed tomography preoperative assessment of the LAA in LV summit ablations
ConclusionAngio-CT assessment of the LAA over the LVS structures may be helpful in decision making before an ablation procedure. LAA appears to be a promising mapping approach in LVS arrhythmias. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 14, 2020 Category: Cardiology Source Type: research

Ablation of manifest septal accessory pathways: a single-center experience
ConclusionIn this single-center experience, ablation of manifest SAP was associated with high success rates and low complication rates. No instances of permanent heart block requiring pacing occurred. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 14, 2020 Category: Cardiology Source Type: research

Reduction of inappropriate implantable cardioverter-defibrillator therapies using enhanced supraventricular tachycardia discriminators: the ReduceIT study
AbstractPurposeInappropriate implantable cardioverter-defibrillator (ICD) shocks are associated with greater healthcare resource utilization, poorer quality-of-life, and higher mortality. We aimed to investigate the performance of enhanced supraventricular tachycardia (SVT) discrimination algorithms (morphology discrimination, rate stability, and sudden or chamber onset) for reducing inappropriate ICD therapies in patients with ICD/cardiac resynchronization therapy devices.MethodsThis prospective, non-randomized, multicenter study (ReduceIT) study took place at 56 sites across Germany and Estonia. Adults at risk of sudden ...
Source: Journal of Interventional Cardiac Electrophysiology - July 14, 2020 Category: Cardiology Source Type: research

Insertable cardiac monitor extraction technique: hook and reel
AbstractThe use of insertable cardiac monitors (ICM) has been increasing because of their ability to provide long-term electrocardiographic monitoring and symptom correlation. Indications for implantation include evaluation of cryptogenic stroke, unexplained syncope, intermittent palpitations, and atrial fibrillation. When the ICM needs to be removed because of battery depletion and/or diagnostic revelation, its removal can be challenging because of its small size and the capsule that forms around the proximal end of the device. A simple technique is described that takes advantage of the ICM design to facilitate its succes...
Source: Journal of Interventional Cardiac Electrophysiology - July 14, 2020 Category: Cardiology Source Type: research

Left atrial appendage occlusion with the Amulet device: to tug or not to tug?
AbstractPurposeLeft atrial appendage occlusion (LAAO) involves a “tug test,” in which implanters pull on the device delivery cable to ensure stable occluder placement. The aim of this study was to evaluate the recommendation to perform the tug test, by comparing forces exerted on the device during deployment and subsequent tug test. A secondary objective was to simulate forces experienced on left atrial appendage tissue by placement of a 20-mm device.MethodsThe AMPLATZER ™ Amulet™ device was used for occlusion. A force transducer recorded forces in the delivery cable during deployment and tug test i...
Source: Journal of Interventional Cardiac Electrophysiology - July 13, 2020 Category: Cardiology Source Type: research

Tribute to Professor Eduardo Argentino Sosa
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 13, 2020 Category: Cardiology Source Type: research

Transhepatic right vein access for radiofrequency ablation of atrioventricular nodal reentry tachycardia in a patient with infrarenal vena cava agenesis
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 12, 2020 Category: Cardiology Source Type: research

QT prolongation in a diverse, urban population of COVID-19 patients treated with hydroxychloroquine, chloroquine, or azithromycin
This study evaluates the risk of QT prolongation and subsequent outcomes after administration of these medications in largely underrepresented minority COVID-19 patients.MethodsWe conducted an observational study on hospitalized COVID-19 patients in the Montefiore Health System (Bronx, NY). We examined electrocardiograms (ECG) pre/post-medication initiation to evaluate QTc, HR, QRS duration, and presence of other arrhythmias.ResultsOne hundred five patients (mean age 67  years; 44.8% F) were analyzed. The median time from the first dose of any treatment to post-medication ECG was 2 days (IQR: 1–3). QTc in m...
Source: Journal of Interventional Cardiac Electrophysiology - July 11, 2020 Category: Cardiology Source Type: research

Dextrocardia and atrial fibrillation ablation: relevance of anatomy
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 10, 2020 Category: Cardiology Source Type: research

Novel noncontact charge density map in the setting of post-atrial fibrillation atrial tachycardias: first experience with the Acutus SuperMap Algorithm
ConclusionThe novel high-resolution mapping algorithm SuperMap proved to be safe, fast, and feasible in identifying and guiding ablation in the setting of regular atrial tachycardias following index AF ablation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 8, 2020 Category: Cardiology Source Type: research

3D navigation system allows remarkable reduction in fluoroscopy use during cavo-tricuspid isthmus ablation
AbstractPurposeTypical atrial flutter (AFL) is one of the most common supraventricular arrhythmias. Its treatment mainly relies on cavo-tricuspid isthmus (CTI) ablation, which can be performed either using conventional fluoroscopy, still mainly used, or 3D navigation system to track the position of the catheter. The aim of this study is to show that the use of a 3D navigation system allows a dramatic reduction of fluoroscopy use during CTI ablation, without any loss of efficacy, time, or safety.MethodsIn this single-center study, we retrospectively compared 134 cases of CTI ablation performed for typical AFL without a 3D n...
Source: Journal of Interventional Cardiac Electrophysiology - July 8, 2020 Category: Cardiology Source Type: research

Evaluation of predictive scores for late and very late recurrence after cryoballoon-based ablation of atrial fibrillation
AbstractPurposeStudies on predictive scores for very late recurrence (VLR) (recurrence later than 12  months) after second-generation cryoballoon-based pulmonary vein isolation (CB2-PVI) are sparse. We aimed to evaluate the frequency of late recurrence (LR) (later than 3 months) and VLR, and to validate predictive scores for LR and VLR after initial CB2-PVI.MethodsA total of 288 patients undergoing initial CB2-PVI (66  ± 11 years, 46% paroxysmal) were retrospectively enrolled in the LR cohort. In the VLR cohort, 83 patients with recurrence within 3–12 months or with
Source: Journal of Interventional Cardiac Electrophysiology - July 7, 2020 Category: Cardiology Source Type: research

Posterior box isolation as an adjunctive ablation strategy with the second-generation cryoballoon for paroxysmal atrial fibrillation: a comparison with standard cryoballoon pulmonary vein isolation
AbstractPurposeThe purpose of the study was to evaluate the impact of left atrial posterior wall isolation (LAPWI) in addition to pulmonary vein isolation (PVI) vs PVI alone, performed using CB-A, in patients with PAF on a midterm follow-up of 12  months.MethodsEighty consecutive patients indicated to index cryoballoon ablation (CB-A) for the treatment of drug resistant PAF were included. The first 50 (62.5%) underwent PVI only, and the following 30 patients (37.5%) underwent LAPWI + PVI.ResultsAcute isolation was achieved in all PVs in both groups. The LAPW was successfully isolated in 29 out of 30 (97%) patients; in...
Source: Journal of Interventional Cardiac Electrophysiology - July 6, 2020 Category: Cardiology Source Type: research

Mid-term feasibility, safety and outcomes of left bundle branch pacing –single center experience
AbstractBackgroundHis bundle pacing (HBP) has evolved as the most physiological form of pacing but associated with limitations. Recently, left bundle branch pacing (LBBP) is emerging as an effective alternative strategy for HBP.ObjectivesOur study was designed to assess the feasibility, efficacy, electrophysiological parameters, and mid-term outcomes of LBBP in Indian population.MethodsAll patients requiring permanent pacemaker implantation for symptomatic bradycardia and heart failure were prospectively enrolled. Echocardiography, QRS duration, pacing parameters, left bundle (LB) potentials, paced QRS duration, and peak l...
Source: Journal of Interventional Cardiac Electrophysiology - July 4, 2020 Category: Cardiology Source Type: research

The diagnostic yield of implantable loop recorders stratified by indication: “real-world” use in a large academic hospital
AbstractPurposeTo report on the clinical utility of implantable loop recorders (ILRs) in a large academic hospital setting over a 4-year period.MethodsRetrospective study (2013 –2016) of patients receiving ILRs for any indication including syncope, cryptogenic stroke (CrS), atrial fibrillation (AF) burden, palpitations, ventricular arrhythmias (VA), and other. Remote checks, symptomatic transmissions, and in-person checks were reviewed. Time to diagnosis was documented.ResultsA total of 263 patients (54% male, mean age 63  ± 15 years, mean follow-up 601 (range 9–1714) days) received IL...
Source: Journal of Interventional Cardiac Electrophysiology - July 4, 2020 Category: Cardiology Source Type: research

Characterization of troponin I levels post synchronized direct current cardioversion of atrial arrhythmias in patients with and without cardiomyopathy
ConclusionsSynchronized DC cardioversion of an atrial arrhythmia did not cause myocardial injury 6-h post-cardioversion. Sub-group analysis suggests that cardioversion of patients with cardiomyopathy may result in normalization of TnI levels. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 3, 2020 Category: Cardiology Source Type: research

Initial multicenter experience with a new high-density coloring module: impact for complex atrial arrhythmias interpretation
AbstractBackgroundHigh-density automated mapping of complex atrial tachycardias (ATs) requires accurate assessment of activation maps. A new local activation display module (HD coloring, Biosense Webster ®) provides higher map resolution, a better delineation of potential block reducing color interpolation, and a new propagation display. We evaluated the accuracy of a dedicated local activation display compared with standard algorithm.MethodsHigh-density maps from 10 AT were collected with a multipolar catheter and were displayed with standard activation or HD coloring. Six expert operators retrospectively analyzed act...
Source: Journal of Interventional Cardiac Electrophysiology - July 3, 2020 Category: Cardiology Source Type: research

Is the time of atrial fibrillation recurrence after cryoballoon ablation of paroxysmal atrial fibrillation influenced by the pattern of PV reconnections?
We describe pulmonary vein (PV) reconnection at repeat ablation in patients with AF recurrence after CB PVI and analyze the correlation between the time of AF recurrence and the observed PV reconnection patterns.MethodsSixty-six patients undergoing a redo PVI for recurrent AF were enrolled 9.1  ± 2.6 months after the initial CB PVI procedure.Results Ninety-two percent had PV reconnections with a mean of 1.97  ± 0.8 reconnected PVs/patient, and 52% of formerly isolated PVs were found reconnected. The highest reconnected rates were observed for left superior PVs (67%). Fifty-thr...
Source: Journal of Interventional Cardiac Electrophysiology - July 3, 2020 Category: Cardiology Source Type: research

Eligibility for subcutaneous implantable cardioverter-defibrillator in patients with left ventricular assist device
ConclusionsPatients implanted with an LVAD showed lower S-ICD eligibility rates compared with patients without LVAD. With an S-ICD eligibility rate of maximal 73.3%, S-ICD therapy may be a feasible option in these patients. Nevertheless, S-ICD implantation should be carefully weighed against potential device-device interference. Prospective studies regarding S-ICD eligibility before and after LVAD implantation are required to further elucidate the role of S-ICD therapy in this population. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 1, 2020 Category: Cardiology Source Type: research

Anatomic predictors of recurrence after cryoablation for atrial fibrillation: a computed tomography based composite score
ConclusionCT-based scoring system is useful to identify “unfavorable” anatomy prior to cryo-PVI, which can result in procedural difficulty and poor outcomes. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 30, 2020 Category: Cardiology Source Type: research

Aortic cusp ablation for premature ventricular contractions and ventricular tachycardia in children: a 5-year single-center experience
ConclusionAortic cusp ablation can be safely performed in children. The careful evaluation of previous noninvasive tests provides important data for determining the location. There might be significant differences in the signs and requirements on the basis of the locations during mapping and ablation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 27, 2020 Category: Cardiology Source Type: research

Encomium to Hein JJ Wellens (as he chose to be known)
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 27, 2020 Category: Cardiology Source Type: research

Improved real-time recordings using the fourth-generation cryoballoon technology —detection of dual fascicle electrograms
ConclusionsBy using the fourth-generation CB, we report a specific pattern of isolation represented by a sequential isolation of two apparently distinct PV fascicles during a single CB freeze delivery. This phenomenon occurred in 5.8% of PV ablations. Of note, the rate of visualization of RT isolation with this novel CB was very high and could be documented in 86.2% of PVs. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 26, 2020 Category: Cardiology Source Type: research

Left atrial appendage occlusion for ischemic stroke prevention in patients with non-valvular atrial fibrillation: clinical expert opinion and consensus statement for the Asian-Pacific region
ConclusionLAAO is an alternative device-based therapy in carefully selected patients with NVAF at risk of ischemic stroke. However, evidence for LAAO is primarily obtained from Caucasian populations, and data on LAAO in Asian-Pacific patients are scarce. While the present consensus statement addresses several therapy-related aspects based on careful interpretation of available evidence and expert opinions, other areas require additional evidence derived from Asian-Pacific populations. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 26, 2020 Category: Cardiology Source Type: research

Body mass index is related to unsuccessful puncture attempts and failure to axillary vein cannulation during ultrasound-guided cardiac electronic device implantation
ConclusionsAxillary vein long-axis (in-plane) US-guided cannulation during CIEDs implantation is characterized by a high success rate (94.9%). An elevated BMI is significantly related to unsuccessful puncture attempts or failure to cannulation. The higher is the BMI, the more are the chances to have difficult vein puncture or cannulation failure and to switch from US-guided approach to another technique. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 23, 2020 Category: Cardiology Source Type: research

Negative-pressure wound therapy (NPWT) for the treatment of pacemaker pocket infection in patients unable or unwilling to undergo CIED extraction
ConclusionsWhen warranted by strictly selected indications, the method of NPWT without CIED extraction can be considered as a new and effective treatment for patients with pacemaker pocket infection who are unwilling or unable to have the device removed. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 22, 2020 Category: Cardiology Source Type: research

Challenges in catheter ablation of deep myocardial substrate for ventricular tachycardia
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 22, 2020 Category: Cardiology Source Type: research

Creation of sinus rhythm and paced maps using a single acquisition step: the “one acquisition-two maps” technique—a feasibility study
AbstractPurposeScars and abnormal electrograms may significantly differ according to the activation wavefront. We propose a new fast technique for reliable comparison between sinus rhythm and ventricular pacing using a single map acquisition and the Rhythmia™ 3D mapping system.MethodsA special programming of the external stimulator was assuring full stable regular paced-beat bigeminy during spontaneous rhythm. A first map was acquired for the spontaneous cardiac beat. Then the window of detection was moved to the following paced beat, and a second map was available after recalculation by the system, depicting activat...
Source: Journal of Interventional Cardiac Electrophysiology - June 19, 2020 Category: Cardiology Source Type: research

Acute and long-term outcome of redo catheter ablation for recurrent atrial tachycardia and recurrent atrial fibrillation in patients with prior atrial fibrillation ablation
AbstractPurposeOrganized atrial tachycardia (AT) accounts for a substantial proportion of recurrence after radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF). We sought to analyze the characteristics and long-term outcome of redo RFCA for recurrent AT compared with those for recurrent AF.MethodsWe analyzed 133 patients who underwent prior AF ablation and presented for redo RFCA procedure. Documented rhythm at recurrence was AT in 50 patients (37.6%) and AF in 83 patients (62.4%). Redo ablation was conducted using a stepwise approach in all subjects.ResultsRecurrent arrhythmia was more frequently a persist...
Source: Journal of Interventional Cardiac Electrophysiology - June 16, 2020 Category: Cardiology Source Type: research

Contact-force recovery predicts the absence of cardiac perforation during steam pops
ConclusionsContact-force recovery predicts the absence of CP during RFA independently of whether the pericardium is present. The presence of the pericardium may decrease the likelihood of perforation, perhaps by acting as a thermal sink. Additional studies are needed to correlate these results with clinical experience. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 13, 2020 Category: Cardiology Source Type: research

Comparison of prognosis and safety of pacemaker implantation in patients aged less than or 85  years and older
AbstractPurposeCardiac conduction disturbance necessitating pacemaker implantation is common among elderly patients. However, patients often have comorbidities and increased frailty which may result in limited life prognosis and a high rate of procedure-related complications. We evaluated pacemaker implantation in older patients by comparing life prognosis and complication rate in patients aged ≥ and
Source: Journal of Interventional Cardiac Electrophysiology - June 12, 2020 Category: Cardiology Source Type: research

Operator learning curve and clinical outcomes of zero fluoroscopy catheter ablation of atrial fibrillation, supraventricular tachycardia, and ventricular arrhythmias
AbstractPurposeTo investigate the learning curve for atrial fibrillation (AF), supraventricular tachycardia (SVT), and premature ventricular contraction (PVC) radiofrequency ablation (RFA) using zero fluoroscopy.MethodsThis is a retrospective, single-center study of 167 patients undergoing ablation between 2016 and 2019. Minimal fluoroscopy approach was initiated after the first 20 cases of PVI and SVT RFA. Procedures were divided consecutively into increments of 10 cases to determine operator learning curve.ResultsA total of 64 (38%) had SVT ablations, 26 (16%) had PVC ablations, and 77 (46%) had AF and underwent PVI. For...
Source: Journal of Interventional Cardiac Electrophysiology - June 12, 2020 Category: Cardiology Source Type: research

Signal- or temperature-based approach for cryoballoon ablation of atrial fibrillation: still an unsolved issue
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 11, 2020 Category: Cardiology Source Type: research

Fluoroless radiofrequency and cryo-ablation of atrioventricular nodal reentry tachycardia in adults and children: a single-center experience
ConclusionBased on these results, it can be suggested that fluoroless RFA or CRA guided by the 3D EAM system can be routinely performed in all patients with AVNRT without compromising safety, efficacy, or duration of the procedure. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 9, 2020 Category: Cardiology Source Type: research

Long-term outcomes of ablation for ventricular arrhythmias in mitral valve prolapse
ConclusionsIn the long term, a subset of MVP patients treated with ablation for ventricular arrhythmias, all with multifocal ectopy on initial EP study, develop hemodynamically significant VT/VF. Our findings suggest the progressive nature of ventricular arrhythmias in patients with MVP and multifocal ectopy. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 6, 2020 Category: Cardiology Source Type: research

Watchman outcomes comparing post-implantation anticoagulation with warfarin versus direct oral anticoagulants
ConclusionOur findings suggest that additional imaging or aggressive management of PDLs in Watchman recipients within the initial 6-month follow-up may aid in reducing stroke rates. Additionally, anticoagulation with DOACs ’ post Watchman implantation was found non-inferior to warfarin, with some evidence of lower risk for adverse outcomes favoring DOACs. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 5, 2020 Category: Cardiology Source Type: research