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Exercise Training Improves Cognitive Function and Neurovascular Control: A Secondary Analysis of the Exercise Training in Heart Failure With Reduced Ejection Fraction and Permanent Atrial Fibrillation: A Randomized Clinical Trial. 运动训练改善射血分数减低的心力衰竭和永久性心房颤动患者的认知功能和神经血管控制:射血分数减低合并永久性心房颤动的心力衰竭患者运动训练二次分析》:随机临床试验。
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-11-01 Epub Date: 2024-10-22 DOI: 10.1161/CIRCEP.124.013193
Guilherme Veiga Guimarães, Paulo Roberto Chizzola, Veridiana Moraes D'Avila, Paulo Roberto Santo Silva, Leandro Silva Alves, Edimar Alcides Bocchi
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引用次数: 0
Performance of Atrial Fibrillation Burden Trends for Stroke Risk Stratification. 心房颤动负担趋势在中风风险分层中的表现。
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-11-01 Epub Date: 2024-10-24 DOI: 10.1161/CIRCEP.123.012394
Jonathan P Piccini, Evan J Stanelle, Cody C Johnson, Elaine M Hylek, Rahul Kanwar, Dhanunjaya R Lakkireddy, Suneet Mittal, James Peacock, Andrea M Russo, Dana Soderlund, Mellanie True Hills, Rod S Passman

Background: Atrial fibrillation (AF) is associated with an increased risk of stroke, yet the limitations of conventional monitoring have restricted our understanding of AF burden risk thresholds. Predictive algorithms incorporating continuous AF burden measures may be useful for predicting stroke. This study evaluated the performance of temporal AF burden trends as predictors of stroke from a large cohort with insertable cardiac monitors.

Methods: Using deidentified data from Optum Clinformatics Data Mart (2007-2019) linked with the Medtronic CareLink insertable cardiac monitor database, we identified patients with an insertable cardiac monitor for AF management (n=1197), suspected AF (n=1611), and cryptogenic stroke (n=2205). Daily AF burden was transformed into simple moving averages, and temporal AF burden trends were defined as the comparison of unique simple moving average pairs. Classification trees were used to predict ischemic stroke, and AF burden significance was quantified using bootstrapped mean variable importance.

Results: Of 5013 patients (age, 69.2±11.7 years; 50% male; CHA2DS2-VASc, 3.7±1.9) who met inclusion criteria, 869 had an ischemic stroke over 2 409 437 days total follow-up. Prior stroke or transient ischemic attack (variable importance, 13.13) was the number 1 predictor of future stroke followed by no prior diagnosis of AF (7.35) and AF burden trends in follow-up (2.59). Temporal proximity of AF and risk of stroke differed by device indication (simple moving averages: AF management, <8 days and suspected AF and cryptogenic stroke, 8-21 days). Together, baseline characteristics and AF burden trends performed optimally for the area under the receiver operating characteristic curve (0.73), specificity (0.70), and relative risk (5.00).

Conclusions: AF burden trends may provide incremental prognostic value as leading indicators of stroke risk compared with conventional schemes.

背景:心房颤动(房颤)与中风风险增加有关,但传统监测的局限性限制了我们对房颤负荷风险阈值的了解。结合连续房颤负荷测量的预测算法可能有助于预测中风。本研究评估了使用可插入式心脏监护仪的大型队列中作为中风预测指标的时间性房颤负荷趋势的性能:使用与美敦力 CareLink 插入式心脏监护仪数据库相连接的 Optum Clinformatics Data Mart(2007-2019 年)中的去身份化数据,我们确定了使用插入式心脏监护仪进行房颤管理(n=1197)、疑似房颤(n=1611)和隐源性中风(n=2205)的患者。将每日房颤负荷转换为简单移动平均值,并通过比较独特的简单移动平均值对来定义时间性房颤负荷趋势。分类树用于预测缺血性中风,房颤负荷的重要性通过引导平均变量重要性进行量化:符合纳入标准的 5013 名患者(年龄为 69.2±11.7 岁;50% 为男性;CHA2DS2-VASc 为 3.7±1.9)中,有 869 人在 2 409 437 天的随访中发生了缺血性卒中。既往中风或短暂性脑缺血发作(重要度可变,13.13)是预测未来中风的首要因素,其次是既往未确诊房颤(7.35)和随访中房颤负担趋势(2.59)。心房颤动与中风风险的时间接近程度因设备适应症而异(简单移动平均值、简单移动平均值、简单移动平均值、简单移动平均值、简单移动平均值、简单移动平均值、简单移动平均值、简单移动平均值):房颤管理,结论:与传统方案相比,房颤负荷趋势作为中风风险的先导指标,可能具有更高的预后价值。
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引用次数: 0
Atrial Topology for a Unified Understanding of Typical and Atypical Flutter. 统一理解典型和非典型扑动的心房拓扑结构
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-11-01 Epub Date: 2024-11-05 DOI: 10.1161/CIRCEP.124.013102
Mattias Duytschaever, Robin Van den Abeele, Niels Carlier, Arthur Santos Bezerra, Bjorn Verstraeten, Sebastiaan Lootens, Karel Desplenter, Arstanbek Okenov, Timur Nezlobinsky, Dipen Shah, Annika Haas, Armin Luik, Jordi Martens, Milad El Haddad, Maarten De Smet, Benjamin De Becker, Clara Francois, Jean-Benoit Le Polain de Waroux, Rene Tavernier, Sebastien Knecht, Sander Hendrickx, Nele Vandersickel

Background: Macroreentry stands as the predominant mechanism of typical and atypical flutter. Despite advances in mapping, many aspects of macroreentrant atrial tachycardia remain unsolved. In this translational study, we applied principles of topology to understand the activation patterns, entrainment characteristics, and ablation responses in a large clinical macroreentrant atrial tachycardia database.

Methods: Because the atrium can be topologically seen as a closed sphere with holes, we used a computational fixed spherical mesh model with a finite number of holes to induce and analyze macroreentrant atrial tachycardia. The ensuing insights were used to interpret high-density activation maps, postpacing interval-tachycardia cycle length values (difference between postpacing interval and tachycardia cycle length), and ablation response in 131 cases of typical and atypical flutter (n=106 left atrium, n=25 right atrium).

Results: Modeling of macroreentrant atrial tachycardia revealed that reentry on closed surfaces consistently manifests itself as paired rotation and that an odd number of critical boundaries is mathematically impossible. Together with mathematical confirmation by the index theorem, this led to a unifying construct that could explain the number of loops, difference between postpacing interval and tachycardia cycle length values, and ablation outcomes (termination, no change, or prolongation in tachycardia cycle length) in all 131 cases.

Conclusions: Combining topology with the index theorem offers a novel and cohesive framework for understanding and managing typical and atypical flutter.

背景:大再发是典型和非典型扑动的主要机制。尽管在图谱绘制方面取得了进展,但大再发性房性心动过速的许多方面仍未解决。在这项转化研究中,我们应用拓扑学原理来了解大型临床大再发性房性心动过速数据库中的激活模式、夹带特征和消融反应:因为从拓扑学角度看,心房是一个带有孔洞的封闭球体,所以我们使用了一个具有有限孔洞数量的计算固定球形网格模型来诱导和分析大再发性房性心动过速。随后,我们对 131 例典型和非典型扑动(左心房 106 例,右心房 25 例)的高密度激活图、起搏后间期-心动过速周期长度值(起搏后间期与心动过速周期长度之差)和消融反应进行了解读:对大再发性房性心动过速的建模显示,闭合面上的再发始终表现为成对旋转,而奇数临界点在数学上是不可能存在的。加上指数定理的数学确认,这就形成了一个统一的结构,可以解释所有 131 个病例中的环路数量、起搏后间期与心动过速周期长度值之间的差异以及消融结果(终止、无变化或心动过速周期长度延长):结论:拓扑学与指数定理的结合为理解和管理典型和非典型扑动提供了一个新颖而有内涵的框架。
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引用次数: 0
Using Atrial Fibrillation Burden Trends and Machine Learning to Predict Near-Term Risk of Cardiovascular Hospitalization. 利用心房颤动负担趋势和机器学习预测心血管病住院的近期风险。
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-11-01 Epub Date: 2024-10-24 DOI: 10.1161/CIRCEP.124.012991
James Peacock, Evan J Stanelle, Lawrence C Johnson, Elaine M Hylek, Rahul Kanwar, Dhanunjaya R Lakkireddy, Suneet Mittal, Rod S Passman, Andrea M Russo, Dana Soderlund, Mellanie True Hills, Jonathan P Piccini

Background: Atrial fibrillation is associated with an increased risk of cardiovascular hospitalization (CVH), which may be triggered by changes in daily burden. Machine learning of dynamic trends in atrial fibrillation burden, as measured by insertable cardiac monitors (ICMs), may be useful in predicting near-term CVH.

Methods: Using Optum's deidentified Clinformatics Data Mart Database (2007-2019), linked with the Medtronic CareLink ICM database, we identified patients with >1 days of ICM-detected atrial fibrillation. ICM-detected diagnostic parameters were transformed into simple moving averages over different periods for daily follow-up. A diagnostic trend was defined as the comparison of 2 simple moving averages of different periods for each diagnostic parameter. CVH was defined as any hospital, emergency department, or ambulatory surgical center encounter with a cardiovascular diagnosis-related group or diagnosis code. Machine learning was used to determine which diagnostic trends could best predict patient risk 5 days before CVH.

Results: A total of 2616 patients with ICMs met the inclusion criteria (71±11 years; 55% male). Among them, 1998 (76%) had a planned or unplanned CVH over 605 363 days. Machine learning revealed distinct groups: (A) sinus rhythm (reference), (B) below-average burden, (C) above-average burden, and (D) above-average burden with decreasing patient activity. The relative risk was increased in all groups versus the reference (B, 4.49 [95% CI, 3.74-5.40]; C, 8.41 [95% CI, 7.00-10.11]; D, 11.15 [95% CI, 9.10-13.65]), including a 21% increase in CVH detection over prespecified burden thresholds of duration (≥1 hour) and quantity (≥5%). The area under the receiver operating characteristic curve increased from 0.55 when using hourly burden amounts to 0.66 when using burden trends and decreasing patient activity (P<0.001), a 20% increase in predictive power.

Conclusions: Trends in atrial fibrillation were strongly associated with near-term CVH, especially above-average burden coupled with low patient activity. This approach could provide actionable information to guide treatment and reduce CVH.

背景:心房颤动与心血管住院(CVH)风险的增加有关,而日常负担的变化可能会引发CVH。通过插入式心脏监护仪(ICM)测量的心房颤动负担动态趋势的机器学习可能有助于预测近期的 CVH:我们使用 Optum 的去标识临床信息学数据集市数据库(2007-2019 年),并与美敦力 CareLink ICM 数据库链接,确定了 ICM 检测出心房颤动时间大于 1 天的患者。将 ICM 检测到的诊断参数转化为每日随访不同时期的简单移动平均值。诊断趋势定义为每个诊断参数的两个不同时期简单移动平均值的比较。CVH定义为任何医院、急诊科或门诊手术中心遇到的心血管诊断相关组或诊断代码。机器学习用于确定哪些诊断趋势最能预测 CVH 前 5 天的患者风险:共有 2616 名 ICM 患者符合纳入标准(71±11 岁;55% 为男性)。其中,1998 人(76%)在 605 363 天内进行过计划内或计划外的 CVH。机器学习显示了不同的组别:(A) 窦性心律(参考),(B) 低于平均负担,(C) 高于平均负担,(D) 高于平均负担且患者活动减少。与参照组相比,所有组的相对风险都有所增加(B 组,4.49 [95% CI,3.74-5.40];C 组,8.41 [95% CI,7.00-10.11];D 组,11.15 [95% CI,9.10-13.65]),其中 CVH 检出率比预设的持续时间(≥1 小时)和数量(≥5%)负担阈值高 21%。接收器工作特征曲线下的面积从使用每小时负荷量时的 0.55 增加到使用负荷趋势和患者活动减少时的 0.66(PConclusions:心房颤动的趋势与近期 CVH 密切相关,尤其是高于平均水平的负担和低患者活动。这种方法可以提供可操作的信息来指导治疗并降低 CVH。
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引用次数: 0
Impact of Being Underweight on the Safety and Efficacy of Atrial Fibrillation Ablation: An Analysis From the Japanese Catheter Ablation Registry. 体重过轻对心房颤动消融安全性和疗效的影响:日本导管消融登记分析》。
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-11-01 Epub Date: 2024-10-23 DOI: 10.1161/CIRCEP.124.013026
Takashi Nakashima, Reina Tonegawa-Kuji, Kohki Nakamura, Koshiro Kanaoka, Michikazu Nakai, Masaru Nagase, Makoto Yamaura, Takahisa Ido, Shigekiyo Takahashi, Takuma Aoyama, Koichi Nagashima, Masaharu Masuda, Seigo Yamashita, Koji Miyamoto, Yu-Ki Iwasaki, Kazuhiro Satomi, Seiji Takatsuki, Koichi Inoue, Kengo Kusano, Teiichi Yamane, Wataru Shimizu
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引用次数: 0
Desmoplakin Cardiomyopathy in Pediatric Patients: A Distinct, Underrecognized Cohort of Arrhythmogenic Cardiomyopathy. 儿科患者中的去甲斑蝥素心肌病:一种独特的、未被充分认识的心律失常性心肌病群。
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-11-01 Epub Date: 2024-11-11 DOI: 10.1161/CIRCEP.124.013114
Nak Hyun Choi, Sara Cherny, Charles I Berul, William R Goodyer, Taylor S Howard, Anna Joong, Leonardo Liberman, Eric S Silver, Chet R Villa, Teresa M Lee, Warren A Zuckerman

Background: DSP cardiomyopathy is a distinct subset of arrhythmogenic cardiomyopathy, reported primarily in adults, that has predominantly left ventricular involvement and features of myocarditis. Clinical characteristics, risk stratification, and management of pediatric patients with DSP variants are not well known. We sought to identify phenotypic features and prognosis of pediatric patients with DSP pathogenic or likely pathogenic variants.

Methods: Multicenter, retrospective study of patients <21 years of age with DSP variants from 6 tertiary pediatric hospitals.

Results: Thirty-four patients, including 10 probands with clinical disease and 24 genotype-positive phenotype-negative patients, were included in the study. The majority of probands were initially diagnosed with myocarditis (50%) and had biventricular (60%) or left ventricular predominant (40%) disease. Chest pain was the most common symptom at presentation (30%), and all had troponin elevation. Probands with homozygous or compound heterozygous DSP variants were likely to present at an early age (<13 years) with symptoms of heart failure, severe biventricular involvement, and dermatologic abnormalities. Low-voltage QRS was the most prominent ECG abnormality. Of those who underwent implantable cardioverter defibrillator implantation, 50% received appropriate implantable cardioverter defibrillator therapy and were found to have significant biventricular involvement in addition to severe left ventricular dysfunction with an ejection fraction <35%.

Conclusions: DSP cardiomyopathy in children and adolescents has varied phenotypic manifestations based on age and genotype and often can be diagnosed as myocarditis. Severe left ventricular dysfunction and biventricular involvement may be associated with a higher likelihood of malignant ventricular tachyarrhythmia.

背景:DSP 心肌病是心律失常性心肌病的一个独特亚型,主要见于成人,主要累及左心室,具有心肌炎的特征。人们对 DSP 变异型儿科患者的临床特征、风险分层和管理还不甚了解。我们试图确定DSP致病变体或可能致病变体儿科患者的表型特征和预后:方法:对 6 家三级儿科医院的 DSP 变异患者进行多中心、回顾性研究:研究共纳入 34 名患者,其中包括 10 名有临床疾病的疑似患者和 24 名基因型阳性、表型阴性的患者。大多数病例最初被诊断为心肌炎(50%),双心室(60%)或左心室为主(40%)。胸痛是发病时最常见的症状(30%),所有患者都有肌钙蛋白升高。具有同卵或复合杂合DSP变异型的患者发病年龄可能较小(结论:儿童和青少年的 DSP 心肌病因年龄和基因型不同而表现各异,通常可诊断为心肌炎。严重的左心室功能障碍和双心室受累可能与恶性室性心动过速的可能性较高有关。
{"title":"Desmoplakin Cardiomyopathy in Pediatric Patients: A Distinct, Underrecognized Cohort of Arrhythmogenic Cardiomyopathy.","authors":"Nak Hyun Choi, Sara Cherny, Charles I Berul, William R Goodyer, Taylor S Howard, Anna Joong, Leonardo Liberman, Eric S Silver, Chet R Villa, Teresa M Lee, Warren A Zuckerman","doi":"10.1161/CIRCEP.124.013114","DOIUrl":"10.1161/CIRCEP.124.013114","url":null,"abstract":"<p><strong>Background: </strong><i>DSP</i> cardiomyopathy is a distinct subset of arrhythmogenic cardiomyopathy, reported primarily in adults, that has predominantly left ventricular involvement and features of myocarditis. Clinical characteristics, risk stratification, and management of pediatric patients with <i>DSP</i> variants are not well known. We sought to identify phenotypic features and prognosis of pediatric patients with <i>DSP</i> pathogenic or likely pathogenic variants.</p><p><strong>Methods: </strong>Multicenter, retrospective study of patients <21 years of age with <i>DSP</i> variants from 6 tertiary pediatric hospitals.</p><p><strong>Results: </strong>Thirty-four patients, including 10 probands with clinical disease and 24 genotype-positive phenotype-negative patients, were included in the study. The majority of probands were initially diagnosed with myocarditis (50%) and had biventricular (60%) or left ventricular predominant (40%) disease. Chest pain was the most common symptom at presentation (30%), and all had troponin elevation. Probands with homozygous or compound heterozygous <i>DSP</i> variants were likely to present at an early age (<13 years) with symptoms of heart failure, severe biventricular involvement, and dermatologic abnormalities. Low-voltage QRS was the most prominent ECG abnormality. Of those who underwent implantable cardioverter defibrillator implantation, 50% received appropriate implantable cardioverter defibrillator therapy and were found to have significant biventricular involvement in addition to severe left ventricular dysfunction with an ejection fraction <35%.</p><p><strong>Conclusions: </strong><i>DSP</i> cardiomyopathy in children and adolescents has varied phenotypic manifestations based on age and genotype and often can be diagnosed as myocarditis. Severe left ventricular dysfunction and biventricular involvement may be associated with a higher likelihood of malignant ventricular tachyarrhythmia.</p>","PeriodicalId":10319,"journal":{"name":"Circulation. Arrhythmia and electrophysiology","volume":" ","pages":"e013114"},"PeriodicalIF":9.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142614836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Resuscitated Sudden Cardiac Arrest as the Initial Presentation of Hypertrophic Cardiomyopathy. 作为肥厚型心肌病最初表现的复苏后心脏骤停。
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-11-01 Epub Date: 2024-10-21 DOI: 10.1161/CIRCEP.124.012970
William H Swain, Daniel R Burczak, Shahid Karim, Andredi M Pumarejo Medina, Khaled Ismail, Mateo Alzate-Aguirre, J Martijn Bos, Peter A Noseworthy, Darrell B Newman, John R Giudicessi, Jeffrey B Geske, Steve R Ommen, Michael J Ackerman, Adelaide M Arruda-Olson, Konstantinos C Siontis
{"title":"Resuscitated Sudden Cardiac Arrest as the Initial Presentation of Hypertrophic Cardiomyopathy.","authors":"William H Swain, Daniel R Burczak, Shahid Karim, Andredi M Pumarejo Medina, Khaled Ismail, Mateo Alzate-Aguirre, J Martijn Bos, Peter A Noseworthy, Darrell B Newman, John R Giudicessi, Jeffrey B Geske, Steve R Ommen, Michael J Ackerman, Adelaide M Arruda-Olson, Konstantinos C Siontis","doi":"10.1161/CIRCEP.124.012970","DOIUrl":"10.1161/CIRCEP.124.012970","url":null,"abstract":"","PeriodicalId":10319,"journal":{"name":"Circulation. Arrhythmia and electrophysiology","volume":" ","pages":"e012970"},"PeriodicalIF":9.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142459451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multicenter Hemodynamic Assessment of the LOT-CRT Strategy: When Does Combining Left Bundle Branch Pacing and Coronary Venous Pacing Enhance Resynchronization?: Primary Results of the CSPOT Study. LOT-CRT 策略的多中心血液动力学评估:联合左束支起搏和冠状静脉起搏何时可增强再同步?CSPOT 研究的初步结果。
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-11-01 Epub Date: 2024-10-23 DOI: 10.1161/CIRCEP.124.013059
Marek Jastrzębski, Paul Foley, Badrinathan Chandrasekaran, Zachary Whinnett, Pugazhendhi Vijayaraman, Gaurav A Upadhyay, Robert D Schaller, Rafał Gardas, Travis Richardson, D'Anne Kudlik, Robert W Stadler, Patrick Zimmerman, James Burrell, Robert Waxman, Richard N Cornelussen, Jonathan Lyne, Bengt Herweg

Background: Left bundle branch area pacing (LBBAP) may be an alternative to biventricular pacing (BVP) for cardiac resynchronization therapy (CRT). We sought to compare the acute hemodynamic and ECG effects of LBBAP, BVP, and left bundle-optimized therapy CRT (LOT-CRT) in CRT candidates with advanced conduction disease.

Methods: In this multicenter study, 48 patients with either nonspecific interventricular conduction delay (n=29) or left bundle branch block (n=19) underwent acute hemodynamic testing to determine the change in left ventricular pressure maximal first derivative (LV dP/dtmax) from baseline atrial pacing to BVP, LBBAP, or LOT-CRT.

Results: Atrioventricular-optimized increases in LV dP/dtmax for LOT-CRT (mean, 25.8% [95% CI, 20.9%-30.7%]) and BVP (26.4% [95% CI, 20.2%-32.6%]) were greater than unipolar LBBAP (19.3% [95% CI, 15.0%-23.7%]) or bipolar LBBAP (16.4% [95% CI, 12.7%-20.0%]; P≤0.005). QRS shortening was greater in LOT-CRT (29.5 [95% CI, 23.4-35.6] ms) than unipolar LBBAP (11.9 [95% CI, 6.1-17.7] ms), bipolar LBBAP (11.7 ms [95% CI, 6.4-17.0]), or BVP (18.5 [95% CI, 11.0-25.9] ms), all P≤0.005. Compared with patients with left bundle branch block, patients with interventricular conduction delay experienced less QRS reduction (P=0.026) but similar improvements in LV dP/dtmax (P=0.29). Bipolar LBBAP caused anodal capture in 54% of patients and resulted in less LV dP/dtmax improvement than unipolar LBBAP (18.6% versus 23.7%; P<0.001). Subclassification of LBBAP capture (European Heart Rhythm Association criteria) indicated LBBAP or LV septal pacing in 27 patients (56%) and deep septal pacing in 21 patients (44%). The hemodynamic benefit of adding left ventricular coronary vein pacing to LBBAP depended on baseline QRS duration (P=0.031) and success of LBBAP (P<0.004): LOT-CRT provided 14.5% (5.0%-24.1%) greater LV dP/dtmax improvement and 20.8 (12.8-28.8) ms greater QRS shortening than LBBAP in subjects with QRS ≥171 ms and deep septal pacing capture type.

Conclusions: In a CRT cohort with advanced conduction disease, LOT-CRT and BVP provided greater acute hemodynamic benefit than LBBAP. Subjects with wider QRS or deep septal pacing are more likely to benefit from the addition of a left ventricular coronary vein lead to implement LOT-CRT.

Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT04905290.

背景:左束支区起搏(LBBAP)可替代双心室起搏(BVP)用于心脏再同步化治疗(CRT)。我们试图比较 LBBAP、BVP 和左束优化治疗 CRT(LOT-CRT)对患有晚期传导疾病的 CRT 候选者的急性血流动力学和心电图影响:在这项多中心研究中,48 名患有非特异性室间传导延迟(29 人)或左束支传导阻滞(19 人)的患者接受了急性血液动力学测试,以确定从基线心房起搏到 BVP、LBBAP 或 LOT-CRT 期间左心室压力最大一阶导数(LV dP/dtmax)的变化:结果: LOT-CRT(平均值为 25.8% [95% CI, 20.9%-30.7%] )和 BVP(26.4% [95% CI, 20.2%-32.6%] )的房室优化 LV dP/dtmax 增幅高于单极 LBBAP(19.3% [95% CI, 15.0%-23.7%] )或双极 LBBAP(16.4% [95% CI, 12.7%-20.0%]; P≤0.005)。与单极 LBBAP(11.9 [95% CI, 6.1-17.7] ms)、双极 LBBAP(11.7 ms [95% CI, 6.4-17.0] ms)或 BVP(18.5 [95% CI, 11.0-25.9] ms)相比,LOT-CRT 的 QRS 缩短幅度更大(29.5 [95% CI, 23.4-35.6] ms),所有 P 均≤0.005。与左束支传导阻滞患者相比,室间传导延迟患者的 QRS 降低幅度较小(P=0.026),但 LV dP/dtmax 的改善幅度相似(P=0.29)。双极 LBBAP 在 54% 的患者中引起了阳极捕获,与单极 LBBAP 相比,双极 LBBAP 的 LV dP/dtmax 改善较少(18.6% 对 23.7%;PP=0.031),而 LBBAP 的成功率(PP/dtmax 改善和 QRS ≥171 ms 及深室间隔起搏捕获类型受试者的 QRS 缩短比 LBBAP 大 20.8 (12.8-28.8) ms)则更高:结论:在患有晚期传导疾病的 CRT 队列中,LOT-CRT 和 BVP 比 LBBAP 提供了更大的急性血流动力学益处。QRS较宽或室间隔起搏较深的受试者更有可能从添加左心室冠状静脉导联以实施LOT-CRT中获益:URL: https://www.clinicaltrials.gov; Unique identifier:NCT04905290。
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引用次数: 0
Coronary Vasospasm During Isthmus Pulsed Field Ablation With Wide Area Focal Catheter. 使用广域聚焦导管进行峡部脉冲场消融时的冠状动脉血管痉挛
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 Epub Date: 2024-08-28 DOI: 10.1161/CIRCEP.124.012923
Alvise Del Monte, Domenico Giovanni Della Rocca, Luigi Pannone, Giampaolo Vetta, Ioannis Doundoulakis, María Cespón Fernández, Lorenzo Marcon, Cinzia Monaco, Antonio Sorgente, Gezim Bala, Erwin Ströker, Juan Sieira, Alexandre Almorad, Andrea Sarkozy, Carlo de Asmundis, Gian-Battista Chierchia
{"title":"Coronary Vasospasm During Isthmus Pulsed Field Ablation With Wide Area Focal Catheter.","authors":"Alvise Del Monte, Domenico Giovanni Della Rocca, Luigi Pannone, Giampaolo Vetta, Ioannis Doundoulakis, María Cespón Fernández, Lorenzo Marcon, Cinzia Monaco, Antonio Sorgente, Gezim Bala, Erwin Ströker, Juan Sieira, Alexandre Almorad, Andrea Sarkozy, Carlo de Asmundis, Gian-Battista Chierchia","doi":"10.1161/CIRCEP.124.012923","DOIUrl":"10.1161/CIRCEP.124.012923","url":null,"abstract":"","PeriodicalId":10319,"journal":{"name":"Circulation. Arrhythmia and electrophysiology","volume":" ","pages":"e012923"},"PeriodicalIF":9.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142079417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrocardiogram-Based Artificial Intelligence to Discriminate Cardioembolic Stroke and Stratify Risk of Atrial Fibrillation After Stroke. 基于心电图的人工智能辨别心肌栓塞性中风并对中风后心房颤动的风险进行分层。
IF 9.1 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 Epub Date: 2024-08-28 DOI: 10.1161/CIRCEP.124.012959
Shaan Khurshid, Samuel F Friedman, Shinwan Kany, Rahul Mahajan, Ashby C Turner, Steven A Lubitz, Mahnaz Maddah, Patrick T Ellinor, Christopher D Anderson
{"title":"Electrocardiogram-Based Artificial Intelligence to Discriminate Cardioembolic Stroke and Stratify Risk of Atrial Fibrillation After Stroke.","authors":"Shaan Khurshid, Samuel F Friedman, Shinwan Kany, Rahul Mahajan, Ashby C Turner, Steven A Lubitz, Mahnaz Maddah, Patrick T Ellinor, Christopher D Anderson","doi":"10.1161/CIRCEP.124.012959","DOIUrl":"10.1161/CIRCEP.124.012959","url":null,"abstract":"","PeriodicalId":10319,"journal":{"name":"Circulation. Arrhythmia and electrophysiology","volume":" ","pages":"e012959"},"PeriodicalIF":9.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11479813/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142079418","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
期刊
Circulation. Arrhythmia and electrophysiology
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