Technical and procedural comparison of two different cryoballoon ablation systems in patients with atrial fibrillation
AbstractPurposeThe aim was to report procedural and technical differences of a novel cryoballoon (NCB) ablation catheter for pulmonary vein isolation (PVI) compared to the standard cryoballoon (SCB) catheter.MethodsConsecutive patients with atrial fibrillation (AF) undergoing PVI using the NCB and the SCB were included. Procedural parameters, technical differences, acute efficacy, and safety are reported.ResultsEighty patients (age 66  ± 10 years, ejection fraction 57 ± 10%, left atrial volume index 40 ± 6 ml/m2) were studied. With the NCB, 156 of 158...
Source: Journal of Interventional Cardiac Electrophysiology - July 28, 2021 Category: Cardiology Source Type: research

Long-term outcome of ventricular tachycardia ablation in patients who did not undergo programmed electrical stimulation after ablation
AbstractBackgroundVentricular arrhythmia inducibility is one of the ideal endpoints of ventricular tachycardia (VT) ablation. However, it may be challenging to implement programmed electrical stimulation (PES) at the end of the procedure under several circumstances. The long-term outcome of patients who did not undergo PES after VT ablation remains largely unknown.PurposeTo investigate the details and long-term outcome of VT ablation in patients who did not undergo PES at the end of the ablation procedure.MethodsAmong 183 VT ablation procedures in patients with structural heart disease who underwent VT ablation using an ir...
Source: Journal of Interventional Cardiac Electrophysiology - July 28, 2021 Category: Cardiology Source Type: research

Physical activity volume in patients with arrhythmogenic cardiomyopathy is associated with recurrence after ventricular tachycardia ablation
ConclusionsPA  ≥ 584 METs/week and LP abolition were independent predictors of VT recurrence after ablation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 27, 2021 Category: Cardiology Source Type: research

QTc interval prolongation, inflammation, and mortality in patients with COVID-19
ConclusionsQTc at hospitalization is a simple risk marker of mortality risk in COVID-19 patients and reflects the myocardial inflammatory status. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 22, 2021 Category: Cardiology Source Type: research

Significance of electrical activity in the right superior pulmonary vein post-isolation and relationship to superior vena cava potentials
ConclusionsPersistent RSPV potentials occur rarely post-PVI despite the close proximity to electrically active SVC. When present, true PVP can be differentiated from FFP by low-amplitude pacing from SVC. Bipolar EGM morphology and high-amplitude pacing are unreliable at differentiating these potentials. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 22, 2021 Category: Cardiology Source Type: research

The impact of electrical connections between left ipsilateral pulmonary veins on the time-to-isolation values in cryoballoon ablation
This study included 144 atrial fibrillation patients who underwent PV isolations using 28-mm fourth-generation cryoballoons. In 101 patients, the left superior PV (LSPV) was targeted and followed by the left inferior PV (LIPV) (group 1), and the LIPV was targeted and followed by the LSPV in the remaining 43 (group 2).ResultsThe total LSPV and LIPV freeze durations were 193  ± 60 and 171 ± 40 s, respectively. Real-time PV isolation monitoring was capable in 137 (95.1%) LSPVs and 119 (82.6%) LIPVs and in 112 (77.8%) patients (78 in group 1 and 34 in group 2) in both LSPVs and LI...
Source: Journal of Interventional Cardiac Electrophysiology - July 22, 2021 Category: Cardiology Source Type: research

Extended early meets late for assessment of conduction block along an ablation line
ConclusionsThe EEML feature of the HD Coloring software is a useful addition to the CARTO mapping system for assessment of block across an ablation line. The threshold value of 25% is the most accurate. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 19, 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 - July 16, 2021 Category: Cardiology Source Type: research

Unmasking of left bundle branch potential in left bundle branch block during physiological pacing
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 10, 2021 Category: Cardiology Source Type: research

No impact of sub-clinical coronary artery disease identified by cardiac CT scan on the recurrence of atrial fibrillation after a single ablation procedure
ConclusionsOur study confirms that CAD is not a predictor of AF recurrence after a single ablation, unlike the LAVI. Further studies are necessary to re-evaluate the long-term conclusions of this work. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 9, 2021 Category: Cardiology Source Type: research

Incidence and characteristics of transient St-segment elevation during transseptal puncture
ConclusionST-segment elevation is a short-term phenomenon that can occur during transseptal catheterization without clinically evident symptoms. The catheter ablation procedure can be safely concluded despite the occurrence of the phenomenon. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 8, 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 - July 8, 2021 Category: Cardiology Source Type: research

Incidence of new-onset atrial fibrillation in COVID-19 is associated with increased epicardial adipose tissue
AbstractPurposeCoronary artery calcium (CAC) and epicardial adipose tissue (EAT) can predict AF in the general population. We aimed to determine if CAC and EAT measured by computed tomographic (CT) scanning can predict new-onset AF in patients admitted with COVID-19 disease.MethodsWe performed a retrospective, post hoc analysis of all patients admitted to Montefiore Medical Center with a confirmed COVID-19 diagnosis from March 1st to June 23rd, 2020, who had a non-contrast CT of the chest within 5  years prior to admission. We determined ordinal CAC scores and quantified the EAT volume and examined their relationship ...
Source: Journal of Interventional Cardiac Electrophysiology - July 7, 2021 Category: Cardiology Source Type: research

Evaluation of the input site and characteristics of the antegrade fast pathway based on three-dimensional bi-atrial stimulus-ventricle mapping
ConclusionsThree-dimensional bi-atrial St-V maps could classify AFpIs in both the RA and LA. AFpIs in the LA were frequently recognized. There were no significant clinical or electrophysiological indicators for predicting AFpI sites, and 3-D bi-atrial St-V mapping was the only method to reveal the precise AFp input site. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 7, 2021 Category: Cardiology Source Type: research

Boston Scientific EMBLEM S-ICD (Model 3501) lead advisory: an illustrative patient report
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 5, 2021 Category: Cardiology Source Type: research

The prognostic role of late gadolinium enhancement on cardiac magnetic resonance in patients with nonischemic cardiomyopathy and reduced ejection fraction, implanted with cardioverter defibrillators for primary prevention. A systematic review and meta-analysis
ConclusionLGE is a highly sensitive predictor of ADT and cardiac death in NICM patients implanted with a defibrillator for primary prevention. However, due to moderate specificity, derivation of a cutoff with adequate predictive values and probably a multifactorial approach are needed to improve discrimination of patients who will not benefit from ICDs. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 3, 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 - July 2, 2021 Category: Cardiology Source Type: research

Transatrial management of inadvertent puncture of the posterior wall during transseptal access for atrial fibrillation ablation: technical report
AbstractTransseptal puncture for atrial fibrillation ablation is a safe and common procedure. However, complications, such as cardiac tamponade, may be fatal if not recognized and treated. Our goal is to report a bailout strategy, by which management of an inadvertent puncture of the posterior wall of the left atrium was possible. It was followed by successful pulmonary vein isolation, without the need for subsequent subxiphoid puncture. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 2, 2021 Category: Cardiology Source Type: research

Electrocardiographic evolution of interatrial conduction consistent with Bay és syndrome after transcatheter aortic valve implantation
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 2, 2021 Category: Cardiology Source Type: research

Idiopathic late coronary sinus lead dislodgement presenting with pulmonary embolism
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - July 2, 2021 Category: Cardiology Source Type: research

Implantable cardioverter-defibrillators in elderly patients: outcome and predictors of mortality
This study aimed to assess the outcome of patients according to their age at the time of implantation, and to identify variables potentially associated with patient survival.MethodsBetween June 2009 and December 2019, we retrospectively enrolled all consecutive patients in whom ICD implantation had been performed for primary or secondary prevention at our center.ResultsDuring the study period, 670 patients underwent ICD implantation. We stratified the population into four age-classes: Class 1 (23%) (pts aged less than 60  years), Class 2 (28%) (pts aged between 60 and 70 years), Class 3 (39%) (pts aged between 70...
Source: Journal of Interventional Cardiac Electrophysiology - July 1, 2021 Category: Cardiology Source Type: research

The electrocardiogram characteristics and pacing parameters of permanent left bundle branch pacing: a systematic review and meta-analysis
This study aims to investigate the electrocardiogram characteristics, pacing parameters, the safety, and the effectiveness of LBBP.MethodsA computerized search of PubMed, Embase, and The Cochrane Library for the effects of LBBP was done. The baseline characteristics of patients, successful rate of implantation, capture threshold, R-wave amplitude, pacing impedance, QRS duration, and follow-up date were extracted and summarized.ResultsThirteen studies including 712 patients were included in this analysis. The overall successful rate for implantation was 92.9%. The main indications for LBBP were atrioventricular block (AVB),...
Source: Journal of Interventional Cardiac Electrophysiology - June 26, 2021 Category: Cardiology Source Type: research

NT-proANP levels in peripheral and cardiac circulation
AbstractBackgroundRecent studies have reported an association between N-terminal atrial natriuretic peptide (NT-proANP) and the progression of atrial fibrillation (AF). However, NT-proANP levels in peripheral and cardiac circulation in AF patients and in non-AF individuals need to be defined. The aims of the current study are (1) to analyze NT-proANP levels in peripheral and cardiac circulation in AF patients and (2) to compare NT-proANP levels in individuals with and without AF.MethodsWe recruited AF patients who were undergoing their first AF catheter ablation and non-AF individuals. Blood plasma samples taken from the f...
Source: Journal of Interventional Cardiac Electrophysiology - June 25, 2021 Category: Cardiology Source Type: research

Long-term reverse remodeling and clinical improvement by MultiPoint Pacing in a randomized, international, Middle Eastern heart failure study
ConclusionsWith MPP and automatic LV vector selection, more CRT patients in the Middle East experienced reverse remodeling and clinical improvement relative to conventional BiV pacing. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 22, 2021 Category: Cardiology Source Type: research

Impact of a formula combining local impedance and conventional parameters on lesion size prediction
This study aimed to investigate if additional LI data improves predicting lesion characteristics and steam pops.MethodsRF applications at a range of powers (30 W, 40 W, and 50 W), contact forces (8 g, 15 g, 25 g, and 35 g), and durations (10 –180 s) using perpendicular/parallel catheter orientations were performed in excised porcine hearts (N = 30). The correlation between AE, FTI, and lesion characteristics was examined, and the impact of LI (%LI drop (%LID) defined by the ΔLI divided by the initial LI) was additionally assessed.ResultsThree hundred seventy-five lesions without steam pops were examined. Ablati...
Source: Journal of Interventional Cardiac Electrophysiology - June 22, 2021 Category: Cardiology Source Type: research

Diabetes mellitus aggravates ranolazine-induced ECG changes in rats
In this study, we evaluated the effect of DM on the liver content of CYP 3A2 enzyme. We also explored the ECG changes after administration of ranolazine in non-DM and DM rats.MethodsFirst phase: 24 male Wistar rats were separated into 4 groups. The control group (n = 6) received normal saline and the DM groups (n = 18) were treated with a single dose (55 mg/kg) of streptozocin (STZ; i.p. injection), then were held for 10, 20, and 30 days, respectively. After study duration for each group, the liver CYP 3A2 protein content was determined using western blotting. Second phase: 48 male Wis...
Source: Journal of Interventional Cardiac Electrophysiology - June 21, 2021 Category: Cardiology Source Type: research

Cardiac resynchronization therapy in patients with heart failure and narrow QRS complexes ( ≤ 130 ms): role of speckle tracking echocardiography and different interventricular (VV) pacing intervals
In this study, we aimed to evaluate myocardial strain (S) and myocardial strain patterns (SP) and strain rate (SR) by speckle tracking echocardiography (STE) and mechanical characteristics at different V V intervals in acute settings and long-term outcome from “sequential LV-RV” pacing programming in patients with narrow (  130 ms) QRS complexes as a basis for extending CRT in select patients with narrow QRS.MethodsFrom a previously established cohort of patients who had undergone CRT device implantation, we identified patients with narrow (  130 ms) QRS complexes, groups A and B respect...
Source: Journal of Interventional Cardiac Electrophysiology - June 17, 2021 Category: Cardiology Source Type: research

High-density mapping with fragmentation analysis in patients with reentrant atrial tachycardias (MAP-FLURHY study)
ConclusionsMost ATs had detectable fragmented electrograms within the circuit, which could be the target of ablation with high efficacy. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 16, 2021 Category: Cardiology Source Type: research

Efficacy and safety of novel temperature-controlled radiofrequency ablation system during pulmonary vein isolation in patients with paroxysmal atrial fibrillation: TRAC-AF study
ConclusionThis first in man series demonstrates that temperature-controlled irrigated RFA with the DT catheter is efficient, safe, and effective in the treatment of paroxysmal AF. Randomized controlled trials are ongoing and will evaluate better the role of this catheter in relation to standard RFA.Trial registrationRegistered on the siteClinicalTrials.gov January 2016 with identifier:NCT02821351 (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 5, 2021 Category: Cardiology Source Type: research

Subjective assessment of complexity and prognosis after pulmonary vein isolation as significant predictor for procedural success
AbstractPurposeSubjective estimation of recurrence after atrial fibrillation ablation is an important tool in clinical use. The aim of this study is to evaluate (1) if the subjective complexity of an atrial fibrillation ablation procedure is correlated with rhythm stability and (2) if the subjective prognosis of the operator has a predictive value.MethodsWe prospectively enrolled patients admitted for ablation of atrial fibrillation. Two scores were given immediately after the procedure by the operator: the complexity and the prognosis scores. With routine follow-ups, we tried to evaluate the correlation between the subjec...
Source: Journal of Interventional Cardiac Electrophysiology - June 5, 2021 Category: Cardiology Source Type: research

Segmental fascicular block during physiological pacing
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 2, 2021 Category: Cardiology Source Type: research

Correction to: Left atrial appendage occlusion with the Amulet device: to tug or not to tug?
For Fig.  4, an internal working draft of the image depicting the device placed in the heart was erroneously provided during the production process. The original article has been updated to include the correct version. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - June 1, 2021 Category: Cardiology Source Type: research

Treatment success and its predictors as well as the complications of catheter ablation for atrial fibrillation in a high-volume centre
AbstractPurposeCatheter ablation for atrial fibrillation (AF) is a standard procedure for maintaining sinus rhythm. The aim of this study was to evaluate treatment success and its predictors and to provide quality control data on complications and redo operations in a centre with an initially a low but currently high annual volume.MethodsData on patients (n = 1,253) treated with catheter ablation for AF in Tays Heart Hospital between January 2010 and May 2018 was evaluated (n = 1178 ablation-naïve patients andn = 1514 AF ablations). Comprehensive data on patient characteristic...
Source: Journal of Interventional Cardiac Electrophysiology - May 31, 2021 Category: Cardiology Source Type: research

Simple periprocedural precautions to reduce Doppler microembolic signals during AF ablation
ConclusionThe current study demonstrates that during atrial fibrillation ablation using irrigated, “point-by-point” RF ablation, masses of microembolic signals are detected in transcranial ultrasound especially in the period of RF current application. The number of MES depends on the total procedure time and the reached ACT during ablation. The use of contact force monitoring might reduce MES during RF ablation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - May 31, 2021 Category: Cardiology Source Type: research

Testing the feasibility of operationalizing a prospective, randomized trial with remote cardiac safety EKG monitoring during a pandemic
ConclusionsA clinical trial without personal contact, rapidly initiated and operationalized to exclude cardiac toxicity using daily remote 6-lead EKG monitoring, is feasible. Of 407 EKGs from 42 participants, there was no evidence of cardiac toxicity.Clinical trial registrationClinicaltrials.gov:NCT04652648 registration date: December 3, 2020 (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - May 26, 2021 Category: Cardiology Source Type: research

Hemodynamic effects of left atrial appendage occlusion
AbstractBackgroundPercutaneous left atrial appendage occlusion (LAAO) devices have emerged as alternatives to anticoagulation for embolic stroke prevention in patients with non-valvular atrial fibrillation (NVAF). The left atrial appendage is known to produce vasoactive neuroendocrine hormones involved in cardiovascular homeostasis. The hemodynamic impact of LAA occlusion on cardiac function remains poorly characterized.MethodsThis is a single-center, retrospective study of sixty-seven consecutive patients who received LAAO utilizing the WATCHMAN device from May 2017 to June 2019. All patients received a comprehensive 2D t...
Source: Journal of Interventional Cardiac Electrophysiology - May 24, 2021 Category: Cardiology Source Type: research

Double ProGlide preclose technique for vascular access closure after leadless pacemaker implantation
ConclusionsThe double preclose technique is a safe and feasible method of achieving access site hemostasis and facilitates early ambulation after leadless pacemaker implantation. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - May 24, 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 - May 21, 2021 Category: Cardiology Source Type: research

Spatial variance in the 12-lead ECG and mechanical dyssynchrony
ConclusionSpatial variance combining depolarization and repolarization markers is a superior predictor of left ventricular mechanical dispersion than QRS duration. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - May 20, 2021 Category: Cardiology Source Type: research

A novel and practical technique to facilitate lead insertion at the His bundle region
ConclusionThis study demonstrated that our method of utilizing a RAS to facilitate the localization the HB body proved to be safe and efficient in achieving permanent HB pacing with a success rate higher than previously reported. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - May 19, 2021 Category: Cardiology Source Type: research

Successful catheter ablation of a left atrial appendage occluder-related atypical atrial flutter
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - May 19, 2021 Category: Cardiology Source Type: research

One year outcome and analysis of peri-device leak of left atrial appendage occlusion devices
AbstractBackgroundThe prevalence of peri-device leak (PDL) of left atrial appendage occlusion (LAAO) devices has been previously reported. However, there have been only few data that compared different existing devices. The aim of this study was to assess the incidence of PDL with both devices WATCHMAN ®, Boston Scientific and AMPLATZER Amulet®, Abbott Laboratories and to evaluate the clinical outcome at 12 months.MethodsConsecutive patients who underwent LAAO between January 2018 and 2020 were randomly assigned to either WATCHMAN or AMPLATZER Amulet implantation based on a systematic 2-week alternation betwee...
Source: Journal of Interventional Cardiac Electrophysiology - May 17, 2021 Category: Cardiology Source Type: research

Ultra-high resolution mapping of reverse typical atrial flutter: electrophysiological properties of a right atrial posterior wall and interatrial septum activation pattern
This study included 30 patients who underwent catheter ablation of CW-AFL (n = 11) and counter-clockwise AFL (CCW-AFL;n = 19) using an ultra-high resolution mapping system. RAPW transverse conduction block was evaluated by the conduction pattern on propagation maps and double potentials separated by an isoelectric line. The degree of blockade was evaluated by the %blockade, which was calculated by the length of the blocked area divided by the RAPW length. IAS activation patterns were also investigated dependent on the propagation map.ResultsThe average %blockade of the RAPW was significantly sma...
Source: Journal of Interventional Cardiac Electrophysiology - May 8, 2021 Category: Cardiology Source Type: research

Applicability of the PAINESD risk score for 30-day mortality prediction post ventricular tachycardia catheter ablation in Chagas disease
AbstractPurposeThe PAINESD risk score was developed in 2015 as a tool to stratify the risk of acute hemodynamic decompensation during ventricular tachycardia (VT) ablation in structural heart disease patients and further then used for post procedure 30-day mortality prediction. The original cohort however did not include Chagas disease (ChD) patients. We aim to evaluate the relevance of the score in a ChD population.MethodsThe PAINESD risk score gives weighted values for specific characteristics (chronic obstructive pulmonary disease, age> 60 years, ischemic cardiomyopathy, New York Heart Association [NYHA] functional c...
Source: Journal of Interventional Cardiac Electrophysiology - May 8, 2021 Category: Cardiology Source Type: research

Autonomic cardiogastric neural interaction after pulmonary vein isolation in patients with atrial fibrillation
ConclusionsA significantly decreased CVRR immediately after PVI is a sign of DGE incidence, implying collateral damage to the esophagus. (Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - May 6, 2021 Category: Cardiology Source Type: research

Differences in D-dimer blood concentration in atrial fibrillation patients with left atrial thrombus or severe left atrial spontaneous echo contrast
AbstractPurposeSevere left atrial spontaneous echo contrast (SLASEC) is considered the prior stage to thrombosis and a high-risk factor for thrombotic events. Studies have suggested an effect of D-dimer blood concentration on exclusion of left atrial thrombus (LAT), but it remains unclear whether D-dimer concentrations differ between atrial fibrillation (AF) patients with SLASEC or LAT.MethodsNonvalvular AF patients scheduled to undergo catheter ablation or cardioversion in Shanghai Ruijin Hospital between January 2017 and July 2020 were screened for this prospective study. All patients underwent transesophageal echocardio...
Source: Journal of Interventional Cardiac Electrophysiology - May 3, 2021 Category: Cardiology Source Type: research

Outcomes of mechanical circulatory support for ventricular tachycardia ablation in severe systolic heart failure
(Source: Journal of Interventional Cardiac Electrophysiology)
Source: Journal of Interventional Cardiac Electrophysiology - May 1, 2021 Category: Cardiology Source Type: research

Surviving sudden cardiac arrest —successes, challenges, and opportunities
AbstractSudden cardiac arrest (SCA) is the most common cause of death in the world. This manuscript highlights the various challenges in prevention and early management of SCA and also discusses the current state of SCA awareness. The manuscript also outlines the various national and international initiatives in improving SCA awareness and their impact on improving outcomes in SCA. Various campaigns have strived for widespread dissemination of cardiopulmonary resuscitation training and advocated for broader public access defibrillator availability. Finally, the manuscript describes future directions including harnessing te...
Source: Journal of Interventional Cardiac Electrophysiology - April 28, 2021 Category: Cardiology Source Type: research

The impacts of contact force, power and application time on ablation effect indicated by serial measurements of impedance drop in both conventional and high-power short-duration ablation settings of atrial fibrillation
This study aimed to clarify the interrelationship and additive effects of contact force (CF), power and application time in both conventional and high-power short-duration (HPSD) settings.MethodsAmong 38 patients with paroxysmal atrial fibrillation who underwent first-time pulmonary vein isolation, 787 ablation points were collected at the beginning of the procedure at separate sites. Energy was applied for 60 s under power outputs of 25, 30 or 35 W (conventional group), or 10 s when using 50 W (HPSD group). An impedance drop (ID) of 10 Ω was regarded as a marker of adequate lesion formation.ResultsID ≥ 10 Ω...
Source: Journal of Interventional Cardiac Electrophysiology - April 23, 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 - April 19, 2021 Category: Cardiology Source Type: research