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Intravascular haemolysis and acute kidney injury following atrial fibrillation ablation: a report using two different systems for pulsed field ablation. 心房颤动消融术后的血管内溶血和急性肾损伤:一份使用两种不同系统进行脉冲场消融的报告。
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae251
Maarten A J De Smet, Clara François, Benjamin De Becker, Rene Tavernier, Jean-Benoît le Polain de Waroux, Sébastien Knecht, Mattias Duytschaever
{"title":"Intravascular haemolysis and acute kidney injury following atrial fibrillation ablation: a report using two different systems for pulsed field ablation.","authors":"Maarten A J De Smet, Clara François, Benjamin De Becker, Rene Tavernier, Jean-Benoît le Polain de Waroux, Sébastien Knecht, Mattias Duytschaever","doi":"10.1093/europace/euae251","DOIUrl":"10.1093/europace/euae251","url":null,"abstract":"","PeriodicalId":11981,"journal":{"name":"Europace","volume":" ","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11493093/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multielectrode catheter-based pulsed field ablation of persistent and long-standing persistent atrial fibrillation. 基于多电极导管的脉冲场消融持续性和长期持续性心房颤动。
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae246
Domenico G Della Rocca, Antonio Sorgente, Luigi Pannone, María Cespón-Fernández, Giampaolo Vetta, Alexandre Almorad, Gezim Bala, Alvise Del Monte, Erwin Ströker, Juan Sieira, Ioannis Doundoulakis, Sahar Mouram, Charles Audiat, Cinzia Monaco, Sanghamitra Mohanty, Roberto Scacciavillani, Lorenzo Marcon, Kazutaka Nakasone, Wael Zaher, Ingrid Overeinder, Serge Boveda, Mark La Meir, Andrea Natale, Andrea Sarkozy, Carlo de Asmundis, Gian-Battista Chierchia
{"title":"Multielectrode catheter-based pulsed field ablation of persistent and long-standing persistent atrial fibrillation.","authors":"Domenico G Della Rocca, Antonio Sorgente, Luigi Pannone, María Cespón-Fernández, Giampaolo Vetta, Alexandre Almorad, Gezim Bala, Alvise Del Monte, Erwin Ströker, Juan Sieira, Ioannis Doundoulakis, Sahar Mouram, Charles Audiat, Cinzia Monaco, Sanghamitra Mohanty, Roberto Scacciavillani, Lorenzo Marcon, Kazutaka Nakasone, Wael Zaher, Ingrid Overeinder, Serge Boveda, Mark La Meir, Andrea Natale, Andrea Sarkozy, Carlo de Asmundis, Gian-Battista Chierchia","doi":"10.1093/europace/euae246","DOIUrl":"10.1093/europace/euae246","url":null,"abstract":"<p><strong>Aims: </strong>Rhythm control of non-paroxysmal atrial fibrillation (AF) is significantly more challenging, as a result of arrhythmia perpetuation promoting atrial substrate changes and AF maintenance. We describe a tailored ablation strategy targeting multiple left atrial (LA) sites via a pentaspline pulsed field ablation (PFA) catheter in persistent AF sustained beyond 6 months (PerAF > 6 m) and long-standing persistent AF (LSPAF).</p><p><strong>Methods and results: </strong>The ablation protocol included the following stages: pulmonary vein antral and posterior wall isolation plus anterior roof line ablation (Stage 1); electrogram-guided substrate ablation (Stage 2); atrial tachyarrhythmia regionalization and ablation (Stage 3). Seventy-two [age:68 ± 10years, 61.1%males; AF history: 25 (18-45) months] patients with PerAF > 6 m (52.8%) and LSPAF (47.2%) underwent their first PFA via the FarapulseTM system. LA substrate ablation (Stage 1 and 2) led to AF termination in 95.8% of patients. AF organized into a left-sided atrial flutter (AFlu) in 46 (74.2%) patients. The PFA catheter was used to identify LA sites showing diastolic, low-voltage electrograms and entrainment from its splines was performed to confirm the pacing site was inside the AFlu circuit. Left AFlu termination was achieved in all cases via PFA delivery. Total procedural and LA dwell times were 112 ± 25 min and 59 ± 22 min, respectively. Major complications occurred in 2 (2.8%) patients. Single-procedure success rate was 74.6% after 14.9 ± 2.7 months of follow-up; AF-free survival was 89.2%.</p><p><strong>Conclusion: </strong>In our cohort, PFA-based AF substrate ablation led to AF termination in 95.8% of cases. Very favourable clinical outcomes were observed during >1 year of follow-up.</p>","PeriodicalId":11981,"journal":{"name":"Europace","volume":" ","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11498055/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detailed analysis of electrogram peak frequency to guide ventricular tachycardia substrate mapping. 详细分析心电图峰值频率,指导室性心动过速基底图绘制。
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae253
Joseph Mayer, Jaffar Al-Sheikhli, Maria Niespialowska-Steuden, Ian Patchett, James Winter, Rafaella Siang, Nicolas Lellouche, Karthick Manoharan, Thanh Trung Phan, Justo Juliá Calvo, Andreu Porta-Sánchez, Ivo Roca Luque, John Silberbauer, Tarvinder Dhanjal
{"title":"Detailed analysis of electrogram peak frequency to guide ventricular tachycardia substrate mapping.","authors":"Joseph Mayer, Jaffar Al-Sheikhli, Maria Niespialowska-Steuden, Ian Patchett, James Winter, Rafaella Siang, Nicolas Lellouche, Karthick Manoharan, Thanh Trung Phan, Justo Juliá Calvo, Andreu Porta-Sánchez, Ivo Roca Luque, John Silberbauer, Tarvinder Dhanjal","doi":"10.1093/europace/euae253","DOIUrl":"10.1093/europace/euae253","url":null,"abstract":"<p><strong>Aims: </strong>Differentiating near-field (NF) and far-field (FF) electrograms (EGMs) is crucial in identifying critical arrhythmogenic substrate during ventricular tachycardia (VT) ablation. A novel algorithm annotates NF-fractionated signals enabling EGM peak frequency (PF) determination using wavelet transformation. This study evaluated the algorithms' effectiveness in identifying critical components of the VT circuit during substrate mapping.</p><p><strong>Methods and results: </strong>A multicentre, international cohort undergoing VT ablation was investigated. VT activation maps were used to demarcate the isthmus zone (IZ). Offline analysis was performed to evaluate the diagnostic performance of low-voltage area (LVA) PF substrate mapping. A total of 30 patients encompassing 198 935 EGMs were included. The IZ PF was significantly higher in sinus rhythm (SR) compared to right ventricular paced (RVp) substrate maps (234 Hz (195-294) vs. 197 Hz (166-220); P = 0.010). Compared to LVA PF, the IZ PF was significantly higher in both SR and RVp substrate maps (area under curve, AUC: 0.74 and 0.70, respectively). The LVA PF threshold of ≥200 Hz was optimal in SR maps (sensitivity 69%; specificity 64%) and RVp maps (sensitivity 60%; specificity 64%) in identifying the VT isthmus. In amiodarone-treated patients (n = 20), the SR substrate map IZ PF was significantly lower (222 Hz (186-257) vs. 303 Hz (244-375), P = 0.009) compared to amiodarone-naïve patients (n = 10). The ≥200 Hz LVA PF threshold resulted in an 80% freedom from VT with a trend towards reduced ablation lesions and radiofrequency times.</p><p><strong>Conclusion: </strong>LVA PF substrate mapping identifies critical components of the VT circuit with an optimal threshold of ≥200 Hz. Isthmus PF is influenced by chronic amiodarone therapy with lower values observed during RV pacing.</p>","PeriodicalId":11981,"journal":{"name":"Europace","volume":" ","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11481296/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comprehensive vs. standard remote monitoring of cardiac resynchronization devices in heart failure patients: results of the ECOST-CRT study. 心力衰竭患者心脏再同步装置的全面远程监控与标准远程监控:ECOST-CRT 研究结果。
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae233
Cédric Klein, Claude Kouakam, Arnaud Lazarus, Pascal de Groote, Christophe Bauters, Eloi Marijon, Frédéric Mouquet, Bruno Degand, Yves Guyomar, Jacques Mansourati, Christophe Leclercq, Laurence Guédon-Moreau
{"title":"Comprehensive vs. standard remote monitoring of cardiac resynchronization devices in heart failure patients: results of the ECOST-CRT study.","authors":"Cédric Klein, Claude Kouakam, Arnaud Lazarus, Pascal de Groote, Christophe Bauters, Eloi Marijon, Frédéric Mouquet, Bruno Degand, Yves Guyomar, Jacques Mansourati, Christophe Leclercq, Laurence Guédon-Moreau","doi":"10.1093/europace/euae233","DOIUrl":"https://doi.org/10.1093/europace/euae233","url":null,"abstract":"<p><strong>Aims: </strong>Integrating remote monitoring (RM) into existing healthcare practice for heart failure (HF) patients to improve clinical outcome remains challenging. The ECOST-CRT study compared the clinical outcome of a comprehensive RM scheme including a patient questionnaire capturing signs and symptoms of HF and notifications for HF specific parameters to traditional RM in patients with cardiac resynchronization therapy (CRT) devices.</p><p><strong>Methods and results: </strong>Patients were randomized 1:1 to standard daily RM (notification for technical parameters and ventricular arrhythmias; control group) or comprehensive RM (adding a monthly symptom questionnaire and notifications for biventricular pacing, premature ventricular contraction, atrial arrhythmias; active group). The primary endpoint was all-cause mortality or hospitalization for worsening HF (WHF). Six hundred fifty-two patients (70.4 ± 10.3 years, 73% men, left ventricular ejection fraction 29.1 ± 7.6%, 68% CRT-Defibrillators, 32% CRT-Pacemakers) were enrolled. The COVID-19 pandemic caused an early termination of the study, so the mean follow-up duration was 18 ± 8 months. No statistically significant difference in the primary endpoint was found between the groups [59 (18.3%) control vs. 77 (23.3%) active group; log-rank test P = 0.13]. Among the secondary endpoints, the MLHF questionnaire showed a larger share of patients with improvement of quality of life compared to baseline in the active group (78%) vs. control (61%; P = 0.03).</p><p><strong>Conclusion: </strong>The study does not support the notion that comprehensive RM, when compared to standard RM, in HF patients with CRT improves the clinical outcome of all-cause mortality or WHF hospitalizations. However, this study was underpowered due to an early termination and further trials are required.</p><p><strong>Registration: </strong>Clinical Trials.gov Identifier: NCT03012490.</p>","PeriodicalId":11981,"journal":{"name":"Europace","volume":"26 10","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11472153/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142461044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel systematic processing of cardiac magnetic resonance imaging identifies target regions associated with infarct-related ventricular tachycardia. 对心脏磁共振成像进行新的系统处理,确定与梗死相关性室性心动过速有关的目标区域。
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae244
Alba Ramos-Prada, Andrés Redondo-Rodríguez, Ivo Roca-Luque, Andreu Porta-Sánchez, Rachel M A Ter Bekke, Jorge G Quintanilla, Javier Sánchez-González, Rafael Peinado, Jose Luis Merino, Matthijs Cluitmans, Robert J Holtackers, Manuel Marina-Breysse, Carlos Galán-Arriola, Daniel Enríquez-Vázquez, Sara Vázquez-Calvo, José Manuel Alfonso-Almazán, Gonzalo Pizarro, Borja Ibáñez, Juan José González-Ferrer, Ricardo Salgado-Aranda, Victoria Cañadas-Godoy, David Calvo, Julián Pérez-Villacastín, Nicasio Pérez-Castellano, David Filgueiras-Rama
{"title":"Novel systematic processing of cardiac magnetic resonance imaging identifies target regions associated with infarct-related ventricular tachycardia.","authors":"Alba Ramos-Prada, Andrés Redondo-Rodríguez, Ivo Roca-Luque, Andreu Porta-Sánchez, Rachel M A Ter Bekke, Jorge G Quintanilla, Javier Sánchez-González, Rafael Peinado, Jose Luis Merino, Matthijs Cluitmans, Robert J Holtackers, Manuel Marina-Breysse, Carlos Galán-Arriola, Daniel Enríquez-Vázquez, Sara Vázquez-Calvo, José Manuel Alfonso-Almazán, Gonzalo Pizarro, Borja Ibáñez, Juan José González-Ferrer, Ricardo Salgado-Aranda, Victoria Cañadas-Godoy, David Calvo, Julián Pérez-Villacastín, Nicasio Pérez-Castellano, David Filgueiras-Rama","doi":"10.1093/europace/euae244","DOIUrl":"10.1093/europace/euae244","url":null,"abstract":"<p><strong>Aims: </strong>There is lack of agreement on late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) imaging processing for guiding ventricular tachycardia (VT) ablation. We aim at developing and validating a systematic processing approach on LGE-CMR images to identify VT corridors that contain critical VT isthmus sites.</p><p><strong>Methods and results: </strong>This is a translational study including 18 pigs with established myocardial infarction and inducible VT undergoing in vivo characterization of the anatomical and functional myocardial substrate associated with VT maintenance. Clinical validation was conducted in a multicentre series of 33 patients with ischaemic cardiomyopathy undergoing VT ablation. Three-dimensional LGE-CMR images were processed using systematic scanning of 15 signal intensity (SI) cut-off ranges to obtain surface visualization of all potential VT corridors. Analysis and comparisons of imaging and electrophysiological data were performed in individuals with full electrophysiological characterization of the isthmus sites of at least one VT morphology. In both the experimental pig model and patients undergoing VT ablation, all the electrophysiologically defined isthmus sites (n = 11 and n = 19, respectively) showed overlapping regions with CMR-based potential VT corridors. Such imaging-based VT corridors were less specific than electrophysiologically guided ablation lesions at critical isthmus sites. However, an optimized strategy using the 7 most relevant SI cut-off ranges among patients showed an increase in specificity compared to using 15 SI cut-off ranges (70 vs. 62%, respectively), without diminishing the capability to detect VT isthmus sites (sensitivity 100%).</p><p><strong>Conclusion: </strong>Systematic imaging processing of LGE-CMR sequences using several SI cut-off ranges may improve and standardize procedure planning to identify VT isthmus sites.</p>","PeriodicalId":11981,"journal":{"name":"Europace","volume":" ","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11472157/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intermittent ventricular preexcitation in children: not always a low-risk condition. 儿童间歇性室性早搏:并不总是低风险疾病
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae250
Marie Laure Yammine, Pietro Paolo Tamborrino, Francesco Flore, Corrado Di Mambro, Vincenzo Pazzano, Sara Di Marzio, Fabrizio Drago
{"title":"Intermittent ventricular preexcitation in children: not always a low-risk condition.","authors":"Marie Laure Yammine, Pietro Paolo Tamborrino, Francesco Flore, Corrado Di Mambro, Vincenzo Pazzano, Sara Di Marzio, Fabrizio Drago","doi":"10.1093/europace/euae250","DOIUrl":"10.1093/europace/euae250","url":null,"abstract":"","PeriodicalId":11981,"journal":{"name":"Europace","volume":" ","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11481285/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to: Outcomes of catheter ablation in high-risk patients with Brugada syndrome refusing an implantable cardioverter defibrillator implantation. 更正:拒绝植入植入式心律转复除颤器的 Brugada 综合征高危患者的导管消融疗效。
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae249
{"title":"Correction to: Outcomes of catheter ablation in high-risk patients with Brugada syndrome refusing an implantable cardioverter defibrillator implantation.","authors":"","doi":"10.1093/europace/euae249","DOIUrl":"10.1093/europace/euae249","url":null,"abstract":"","PeriodicalId":11981,"journal":{"name":"Europace","volume":"26 10","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11450399/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142371306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcatheter non-acute retrieval of the tine-based leadless ventricular pacemaker. 经导管非急性取出无引线心室起搏器。
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae256
Moritoshi Funasako, Pavel Hála, Marek Janotka, Jan Šorf, Lucie Machová, Jan Petrů, Milan Chovanec, Jan Škoda, Lucie Šedivá, Jaroslav Šimon, Libor Dujka, Vivek Y Reddy, Petr Neužil
{"title":"Transcatheter non-acute retrieval of the tine-based leadless ventricular pacemaker.","authors":"Moritoshi Funasako, Pavel Hála, Marek Janotka, Jan Šorf, Lucie Machová, Jan Petrů, Milan Chovanec, Jan Škoda, Lucie Šedivá, Jaroslav Šimon, Libor Dujka, Vivek Y Reddy, Petr Neužil","doi":"10.1093/europace/euae256","DOIUrl":"10.1093/europace/euae256","url":null,"abstract":"<p><strong>Aims: </strong>We report our single-centre experience of mid-term to long-term retrieval and reimplantation of a tine-based leadless pacemaker [Micra transcatheter pacing system (TPS)]. The TPS is a clinically effective alternative to transvenous single-chamber ventricular pacemakers. Whereas it is currently recommended to abandon the TPS at the end of device life, catheter-based retrieval may be favourable in specific scenarios.</p><p><strong>Methods and results: </strong>We report on nine consecutive patients with the implanted TPS who subsequently underwent transcatheter retrieval attempts. The retrieval system consists of the original TPS delivery catheter and an off-the-shelf single-loop 7 mm snare. The procedure was guided by fluoroscopy and intracardiac echocardiography. After an implantation duration of 3.1 ± 2.8 years (range 0.4-9.0), the overall retrieval success rate was 88.9% (8 of 9 patients). The mean procedure time was 89 ± 16 min, and the fluoroscopy time was 18.0 ± 6.6 min. No procedure-related adverse device events occurred. In the one unsuccessful retrieval, intracardiac echocardiography revealed that the TPS was partially embedded in the ventricular tissue surrounding the leadless pacemaker body in the right ventricle. After retrieval, three patients were reimplanted with a new TPS device. All implantations were successful without complications.</p><p><strong>Conclusion: </strong>A series of transvenous late retrievals of implanted TPS devices demonstrated safety and feasibility, followed by elective replacement with a new leadless pacing device or conventional transvenous pacing system. This provides a viable end-of-life management alternative to simple abandonment of this leadless pacemaker.</p>","PeriodicalId":11981,"journal":{"name":"Europace","volume":" ","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11503947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142389084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of effective refractory period personalization on arrhythmia vulnerability in patient-specific atrial computer models. 有效折返期个性化对特定患者心房计算机模型中心律失常易感性的影响
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae215
Patricia Martínez Díaz, Albert Dasí, Christian Goetz, Laura A Unger, Annika Haas, Armin Luik, Blanca Rodríguez, Olaf Dössel, Axel Loewe
{"title":"Impact of effective refractory period personalization on arrhythmia vulnerability in patient-specific atrial computer models.","authors":"Patricia Martínez Díaz, Albert Dasí, Christian Goetz, Laura A Unger, Annika Haas, Armin Luik, Blanca Rodríguez, Olaf Dössel, Axel Loewe","doi":"10.1093/europace/euae215","DOIUrl":"10.1093/europace/euae215","url":null,"abstract":"<p><strong>Aims: </strong>The effective refractory period (ERP) is one of the main electrophysiological properties governing arrhythmia, yet ERP personalization is rarely performed when creating patient-specific computer models of the atria to inform clinical decision-making. This study evaluates the impact of integrating clinical ERP measurements into personalized in silico models on arrhythmia vulnerability.</p><p><strong>Methods and results: </strong>Clinical ERP measurements were obtained in seven patients from multiple locations in the atria. Atrial geometries from the electroanatomical mapping system were used to generate personalized anatomical atrial models. The Courtemanche M. et al. cellular model was adjusted to reproduce patient-specific ERP. Four modeling approaches were compared: homogeneous (A), heterogeneous (B), regional (C), and continuous (D) ERP distributions. Non-personalized approaches (A and B) were based on literature data, while personalized approaches (C and D) were based on patient measurements. Modeling effects were assessed on arrhythmia vulnerability and tachycardia cycle length, with sensitivity analysis on ERP measurement uncertainty. Mean vulnerability was 3.4 ± 4.0%, 7.7 ± 3.4%, 9.0 ± 5.1%, and 7.0 ± 3.6% for scenarios A-D, respectively. Mean tachycardia cycle length was 167.1 ± 12.6 ms, 158.4 ± 27.5 ms, 265.2 ± 39.9 ms, and 285.9 ± 77.3 ms for scenarios A-D, respectively. Incorporating perturbations to the measured ERP in the range of 2, 5, 10, 20, and 50 ms changed the vulnerability of the model to 5.8 ± 2.7%, 6.1 ± 3.5%, 6.9 ± 3.7%, 5.2 ± 3.5%, and 9.7 ± 10.0%, respectively.</p><p><strong>Conclusion: </strong>Increased ERP dispersion had a greater effect on re-entry dynamics than on vulnerability. Inducibility was higher in personalized scenarios compared with scenarios with uniformly reduced ERP; however, this effect was reversed when incorporating fibrosis informed by low-voltage areas. Effective refractory period measurement uncertainty up to 20 ms slightly influenced vulnerability. Electrophysiological personalization of atrial in silico models appears essential and requires confirmation in larger cohorts.</p>","PeriodicalId":11981,"journal":{"name":"Europace","volume":" ","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11500604/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142035551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lifetime cumulative activity burden is associated with symptomatic heart failure and arrhythmic risk in patients with arrhythmogenic right ventricular cardiomyopathy: a retrospective cohort study. 终生累积活动负担与致心律失常性右室心肌病患者的症状性心力衰竭和心律失常风险有关:一项回顾性队列研究。
IF 7.9 1区 医学
Europace Pub Date : 2024-10-03 DOI: 10.1093/europace/euae236
Leonhard Binzenhöfer, Sebastian Clauss, Katharina Strauß, Julia Höpler, Marie Kraft, Sabine Hoffmann, Stefan Brunner, Philipp Tomsits, Dominik Schüttler, Steffen Massberg, Stefan Kääb, Enzo Lüsebrink
{"title":"Lifetime cumulative activity burden is associated with symptomatic heart failure and arrhythmic risk in patients with arrhythmogenic right ventricular cardiomyopathy: a retrospective cohort study.","authors":"Leonhard Binzenhöfer, Sebastian Clauss, Katharina Strauß, Julia Höpler, Marie Kraft, Sabine Hoffmann, Stefan Brunner, Philipp Tomsits, Dominik Schüttler, Steffen Massberg, Stefan Kääb, Enzo Lüsebrink","doi":"10.1093/europace/euae236","DOIUrl":"10.1093/europace/euae236","url":null,"abstract":"<p><strong>Aims: </strong>Sports-related physical activity is associated with an increased risk of ventricular dysfunction and arrhythmias in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC). However, there are currently no standardized strategies for activity assessment. Thresholds for harmful levels of physical activity suggested by previous studies vary substantially and neither lifetime activity burden nor continuous modelling approaches were considered.</p><p><strong>Methods and results: </strong>For this single-centre retrospective study, ARVC patients were interviewed to assess sports-related and non-sports-related physical activity between the age of 10 years and the last follow-up. Activity data were aggregated to the median metabolic equivalent of task-hours (METh) per week for each year. The association between cumulative physical activity burden and clinical study endpoints was investigated using Cox regression models. A total of 124 patients (median age: 39.5 years, 48% male) were included in the analysis, of whom 93 had been diagnosed with definite ARVC. Study participants reported a median overall activity of 202.3 METh/week, with 38.7 METh/week attributed to sports-related activity. In the continuous model, cumulative overall activity burden was associated with the occurrence of symptomatic heart failure [hazard ratio (HR) per 100 METh/week: 1.017, 95% CI (1.003, 1.032), P = 0.015], sustained ventricular tachycardia [HR: 1.021, 95% CI (1.006, 1.037), P = 0.007], and implantable cardioverter defibrillator interventions [HR: 1.017, 95%CI (1.000, 1.034), P = 0.048]. This finding was consistent when considering sports-related activity separately as a predictor variable, whereas the resulting hazard ratios did not show a significant association for non-sports-related physical activity.</p><p><strong>Conclusion: </strong>This study demonstrates for the first time that cumulative physical activity as a continuous predictor variable is associated with symptomatic heart failure and arrhythmic risk in ARVC patients. Collaborative research is required in larger cohorts to investigate the influence of potential confounders on event occurrence and to develop threshold recommendations for clinical practice.</p>","PeriodicalId":11981,"journal":{"name":"Europace","volume":" ","pages":""},"PeriodicalIF":7.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11481332/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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