Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing最新文献

{"title":"Focal-bipolar pulsed field ablation as a bailout strategy for radiofrequency-resistant atrioventricular nodal reentrant tachycardia.","authors":"Łukasz Zarębski, Piotr Futyma","doi":"10.1007/s10840-026-02265-2","DOIUrl":"10.1007/s10840-026-02265-2","url":null,"abstract":"","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1813-1815"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147274240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy and safety of a novel pulsed field ablation system in paroxysmal atrial fibrillation.","authors":"Qiming Liu, Hanxiong Liu, Xiaoshu Cheng, Zhihui Zhang, Chenyang Jiang, Zhiyu Ling, Yan Wang, Xuping Li, Zhen Zhang, Qi Chen, Wenzhi Luo, Zhenjiang Liu, Duan Luo, Jianhua Yu, Guoshu Yang, Qinmei Xiong, Yan Luo, Jinzhu Hu, Juying Zhang, Shenghua Zhou","doi":"10.1007/s10840-026-02284-z","DOIUrl":"10.1007/s10840-026-02284-z","url":null,"abstract":"","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1937-1947"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13687267/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147446655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association of mechanical circulatory support use with inpatient outcomes in patients undergoing ventricular tachycardia ablation.","authors":"Nahush Bansal, Vaishnavi Aradhyula, Navkirat Kahlon, Urja Sanghvi, George Moukarbel, Paul Chacko, Ehab Eltahawy, Komandoor Srivathsan, Justin Lee, Dan Sorajja, Abhishek Maan","doi":"10.1007/s10840-026-02249-2","DOIUrl":"10.1007/s10840-026-02249-2","url":null,"abstract":"<p><strong>Background: </strong>Ventricular tachycardia (VT) ablation is a high-risk procedure that often requires induction of VT for activation and entrainment mapping. VT induction, particularly those with rapid cycle lengths tends to predispose patients to acute hemodynamic instability, sometimes necessitating mechanical circulatory support (MCS) to maintain perfusion, especially during longer procedures.</p><p><strong>Purpose: </strong>We sought to evaluate clinical and procedural outcomes in patients requiring MCS during VT ablation.</p><p><strong>Methods: </strong>We queried the 2017-2021 National Inpatient Sample (NIS) database and identified patients who underwent VT ablation using ICD-10 codes. Patients were stratified based on the use of MCS during VT ablation. MCS devices included intra-aortic balloon pump (IABP), percutaneous ventricular assist device (pVAD), and extracorporeal membrane oxygenation (ECMO). We then compared clinical outcomes and utilization of resources between the two groups (VT ablation with MCS vs. VT ablation without MCS).</p><p><strong>Results: </strong>A total of 10,980 patients underwent VT ablations during the specified time period of 2017-2021 and of these, 815 (7.42%) required MCS during the ablation procedure. The patients who required MCS had a significantly higher in-hospital mortality as compared to those who did not require MCS (16.56% vs. 2.26%, p < 0.001). The use of MCS was also associated with a relatively longer length of inpatient stay (mean: 18 vs. 6 days, p = 0.01) and also incurred a greater cost of hospitalization (USD 538,598 vs. 200,308, p < 0.001). The risk of inpatient complications (such as acute kidney injury, stroke, cardiac tamponade, bleeding and vascular complications) was also observed to be higher in the group of patients requiring MCS vs. the group which did not require MCS during VT ablation.</p><p><strong>Conclusions: </strong>The utilization of MCS during VT ablation was associated with significantly worse inpatient outcomes, post-procedural complications and a longer stay in the hospital. It is plausible that patients requiring MCS during VT ablation represent a relatively sicker subset of patients. Despite the use of MCS to prevent hemodynamic compromise during VT ablation, the post-procedural outcomes remain poorer. Our findings also suggest that an individualized strategy for the use of MCS might be more useful than an empiric use of MCS during VT ablation.</p>","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1909-1917"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13687126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147314239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Intracardiac versus transesophageal echocardiography in atrial fibrillation ablation: a systematic review and meta-analysis.","authors":"Matheus da Silva Ferreira, Samuel Oliveira de Amorim, Pedro Lívio Gomes Moura, Nathan Fellipe Cardoso da Silva, Felipe Henrique Lima Pereira, Marcos Manoel Honorato, José Alexandre Neto","doi":"10.1007/s10840-026-02317-7","DOIUrl":"10.1007/s10840-026-02317-7","url":null,"abstract":"","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"2051-2052"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147577228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Ablation of manifest accessory pathways in pediatric patients: comparison between conventional and non‑radiological navigation techniques.","authors":"Alejandro Cuesta, María J Arocena, José M Moltedo, Fernando Vidal, Pedro Iturralde, Manlio Márquez-Murillo, Moisés Levinstein J, Santiago Nava, Gerardo Rodríguez-Diez, Elaine Nuñez, Luis Wayar, Luis J Colin Lizalde, Jorge R Gómez Flores, José L Morales, Rogelio Robledo, Alejandro Estrada, Andrés Caeiro, Katty Quezada, Álvaro Arenas, Michel Cabrera Ortega","doi":"10.1007/s10840-026-02291-0","DOIUrl":"10.1007/s10840-026-02291-0","url":null,"abstract":"","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1835"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147483130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pulsed field ablation of the cavotricuspid isthmus using a balloon-in-basket system.","authors":"Joseph A Kheir, Lukas Urbanek, Andrea Urbani, Melanie Gunawardene, Alexandra Marx, Julia Lurz, David Schaack, Matteo Rocchetti, Soroosh Najafi, Alexandra Steyer, K R Julian Chun, Boris Schmidt","doi":"10.1007/s10840-025-02102-y","DOIUrl":"10.1007/s10840-025-02102-y","url":null,"abstract":"<p><strong>Background: </strong>Pulsed field ablation (PFA) has emerged as a promising modality for pulmonary vein isolation (PVI) in atrial fibrillation (AF), with favourable safety and efficacy profiles. However, its application to other arrhythmias, such as typical atrial flutter (AFl), remains exploratory. The Volt™ PFA system (Abbott Laboratories), a novel balloon-in-basket catheter capable of mapping, pacing and delivering ablating energy, has been validated for PVI, but has not yet been used for the treatment of AFl cavotricuspid isthmus (CTI) dependent. We report the first documented case of successful concomitant PVI and CTI ablation using the Volt™ PFA system. A 73-year-old male with persistent AF and atrial flutter was referred for catheter ablation. After PVI was completed, typical AFl was induced during catheter manipulation. Activation mapping and entrainment confirmed CTI-dependent flutter. Despite the presence of a pacemaker and the balloon-shaped catheter, a linear ablation line was delivered across the CTI using selectively activated splines. Tachycardia was terminated after six PFA applications, and bidirectional CTI block was confirmed. The patient was discharged two days post-procedure without complications.</p><p><strong>Discussion: </strong>This case demonstrates the feasibility of using the balloon-in-basket Volt™ PFA catheter for CTI ablation. Mapping integration and selective spline activation enabled precise lesion placement in a linear anatomical region, overcoming the expected limitations of a balloon-based system. While the acute outcome was successful, long-term safety and efficacy of this off-label use warrant further investigation.</p>","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1573-1577"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of contact force variability in the MAGiC catheter under different magnetic field strengths, vector orientations, and catheter extensions in robotic magnetic navigation.","authors":"Michal Orczykowski, Maciej Bak, Andrzej Glowniak, Krzysztof Kaczmarek, Piotr Urbanek, Robert Bodalski, Krzysztof Dubowski, Anna Jargielo, Pawel Derejko, Pawel Ptaszynski, Lukasz Szumowski","doi":"10.1007/s10840-025-02092-x","DOIUrl":"10.1007/s10840-025-02092-x","url":null,"abstract":"<p><strong>Background: </strong>Contact force (CF) in manually controlled catheters is crucial for forming an optimal lesion. There is lack of published data on CF values of MAGiC catheter (Stereotaxis, St. Louis, MO, USA) in magnetic field.</p><p><strong>Methods: </strong>We conducted a total of 2500 CF measurements using the Robotic Magnetic Navigation (RMN) system (Stereotaxis, St. Louis, MO, USA), a magnetic-guided 8,5 Fr RF ablation catheter MAGiC (Stereotaxis, St. Louis, MO, USA) inserted through a long sheath, and a precision jewelry scale (IKEME, Guangdong, CN). We analyzed the impact on the obtained CF values of five different magnetic field vectors (transverse, caudal, cranial, sagittal, and anterior), two field strengths (0.1 T and 0.08 T), and five catheter extension configurations from the long sheath. Additionally, we compared the CF values of the MAGiC catheter and the THERMOCOOL® RMT Catheter (Biosense Webster, Irvine, CA, USA) using two models.</p><p><strong>Results: </strong>The measured CF values of MAGiC catheter ranged from 5.62 to 21.61 g (0.1 T) and 3.63 to 20.74 g (0.08 T) and varied depending on the vectors. CF was higher at 0.1 T than 0.08 T, with values ranging from 9.32 to 21.61 g (0.1 T) and 8.71 to 20.74 g (0.08 T). In Model I comparison of MAGiC and THERMOCOOL® RMT, the MAGiC catheter had significantly higher CF (p < 0.001) in 28/30 measurements scenarios. In Model II, CF was higher in 24/30 scenarios (p < 0.001).</p><p><strong>Conclusion: </strong>The MAGiC catheter provides consistently optimal CF values across multiple orientations and catheter extension models, outperforming the THERMOCOOL® RMT Catheter in most scenarios.</p>","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1695-1705"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Irrigated versus non-irrigated radiofrequency ablation of the atrioventricular node for atrial fibrillation.","authors":"Nickolas Colyn, Jovita Dwivedi, Anika Knowles, Paul Novak, Laurence Sterns, Markus Sikkel, Michael Thibert, Martin van Zyl","doi":"10.1007/s10840-026-02371-1","DOIUrl":"10.1007/s10840-026-02371-1","url":null,"abstract":"","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1559-1561"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148177497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In vivo mapping of human polymorphic ventricular tachycardia.","authors":"Luigi Pannone, Cinzia Monaco, Domenico Giovanni Della Rocca, Pasquale Vergara, Antonio Sorgente, Alvise Del Monte, Giampaolo Vetta, Roberto Menè, Giacomo Talevi, Ivan Eltsov, Ingrid Overeinder, Gezim Bala, Alexandre Almorad, Erwin Ströker, Gudrun Pappaert, Juan Sieira, Ali Gharaviri, Mark La Meir, Pedro Brugada, Gian Battista Chierchia, Andrea Sarkozy, Carlo de Asmundis","doi":"10.1007/s10840-025-02195-5","DOIUrl":"10.1007/s10840-025-02195-5","url":null,"abstract":"<p><strong>Background: </strong>Polymorphic ventricular tachycardia (PMVT) is characterized by a typical change in QRS morphology and amplitude. This study aims to evaluate human PMVT mechanisms through in vivo ECG imaging (ECGI) mapping in patients with a normal QTc.</p><p><strong>Methods: </strong>All patients from UZ Brussel and CHU Bordeaux were screened. The inclusion criterion for the study was PMVT mapped with ECGI. Exclusion criteria were as follows: (1) long QT, (2) premature ventricular contractions inducing PMVT, and (3) acute ischemia. Phase mapping was performed for each PMVT episode, and rotational and focal activity was adjudicated.</p><p><strong>Results: </strong>A total of five patients were analyzed, and five episodes of PMVT were mapped. PMVT duration was 5.9 s, and the cycle length was 242.4 ms. The mean number of rotational activities was 2.5 ± 1.2, with a mean of 2.9 rotations on the apex. The mean number of focal activities was 1.4 ± 0.9. PMVT mechanism was consistent with the following. In the first phase of PMVT, a stable rotor was found over the ventricular apex. The reduction of QRS amplitude in PMVT was associated with the appearance of a non-apical activity. The further reduction of QRS amplitude (trough or minimum) was secondary to a fusion between the apical wavefront and the non-apical wavefront. In the second phase of PMVT, a stable rotational or focal activity was found.</p><p><strong>Conclusion: </strong>The main mechanism of human PMVT maintenance was rotational activity over the ventricular apex. Changes in QRS morphology and amplitude were secondary to a fusion between apical and non-apical activities.</p>","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1755-1764"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13687218/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145777093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lattice-tip dual energy ablation creates effective ventricular lesions through transmural scar that might inadvertently increase lead capture thresholds on the opposing surface.","authors":"Vishal Luther, Laura Brodie, Justin Chiong, Peter Calvert, Daniel Walker, Dhiraj Gupta, Nathan Denham","doi":"10.1007/s10840-026-02356-0","DOIUrl":"10.1007/s10840-026-02356-0","url":null,"abstract":"<p><strong>Background: </strong>Achieving adequate lesion depth during ventricular tachycardia (VT) ablation within scar is challenging with conventional radiofrequency energy (RF). The lattice-tip catheter enables dual-energy ablation (RF & pulsed field [PF]) with enhanced tissue penetration.</p><p><strong>Objective: </strong>We report on 3 cardiac implantable electronic device (CIED) patients with transmural apical left ventricular (LV) scars and drug-refractory VT. Each underwent endocardial LV ablation using RF & stacked PF. Ablation included delivery near the opposing surface of CIED leads, at sites critical for the VT circuit. CIED parameters were assessed pre- and post-procedure, as well as at interval follow-up.</p><p><strong>Results: </strong>VT was eliminated with complete non-inducibility achieved in all cases, and there has been no recurrence at early follow-up (4-6months). However, each case demonstrated inadvertent CIED lead capture threshold rise (apical right ventricular x2, anterolateral LV coronary sinus branch x1), with partial recovery over time. Findings correlated with ablation near opposing lead electrodes.</p><p><strong>Conclusion: </strong>Dual-energy lattice-tip ablation creates effective ventricular lesions through transmural scar that may increase CIED capture thresholds on the opposing myocardial surface. Our report recommends vigilance during ablation opposing CIED leads, balancing the respective wall thickness and potential for lead damage against the gravity of the arrhythmic presentation.</p>","PeriodicalId":520675,"journal":{"name":"Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing","volume":" ","pages":"1967-1973"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13687281/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147990747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}