1
|
Wei F, Kuang X, Zhang X, Wu P, Fan J. Ventricular activation pattern of left ventricular septal pacing in a canine model. J Interv Card Electrophysiol 2024:10.1007/s10840-024-01903-x. [PMID: 39145792 DOI: 10.1007/s10840-024-01903-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 08/09/2024] [Indexed: 08/16/2024]
Abstract
BACKGROUND Left bundle branch pacing (LBBP) is a feasible and effective physiological pacing technique. The QRS morphology of left ventricular septal pacing (LVSP) is similar to that of LBBP. The ventricular activation pattern of LBBP is well-known, whereas the pattern of LVSP still needs further investigation. The present study aimed to determine ventricular activation pattern difference between LVSP and LBBP in a canine model. METHOD All six canines underwent successful LBBP and LVSP through trans-ventricular septum using intracardiac echocardiography and intracardiac electrogram. Their hearts were isolated and stained with Lugol's iodine to determine the position of the pacing lead. The activation sequences of the left ventricular myocardium and His-Purkinje system were recorded by placing multiple electrode catheters. RESULTS First, the left His-Purkinje system in LVSP was activated simultaneously from apical and basal regions to the left ventricular middle septal region, whereas the left ventricular septal myocardium was activated from the apical to basal region. The left His-Purkinje system activation in LBBP occurred in the direction of the apex from the pacing lead, but the left ventricular septal myocardium was activated in the apical to basal direction. Furthermore, the left intraventricular electrical synchrony was similar between LVSP and LBBP as determined by mapping the left ventricular septal to free wall activation time (46.7 ± 1.8 ms vs. 45.0 ± 1.4 ms, p = 0.11). CONCLUSION The ventricular activation sequence of LVSP was similar to LBBP. LVSP can capture LBB due to the wide distribution of LBB. These findings suggest a rationale for clinical application of LVSP.
Collapse
Affiliation(s)
- Feiyu Wei
- Department of Cardiology, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, 157 Jinbi Road, 650032, Kunming, Yunnan Province, People's Republic of China
| | - Xiaohui Kuang
- Department of Cardiology, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, 157 Jinbi Road, 650032, Kunming, Yunnan Province, People's Republic of China
| | - Xi Zhang
- Department of Cardiology, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, 157 Jinbi Road, 650032, Kunming, Yunnan Province, People's Republic of China
| | - Peng Wu
- Department of Cardiology, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, 157 Jinbi Road, 650032, Kunming, Yunnan Province, People's Republic of China
| | - Jie Fan
- Department of Cardiology, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, 157 Jinbi Road, 650032, Kunming, Yunnan Province, People's Republic of China.
| |
Collapse
|
2
|
Zhu H, Qin C, Du A, Wang Q, He C, Zou F, Li X, Tao J, Wang C, Liu Z, Xue S, Zeng J, Qian Z, Wang Y, Hou X, Ellenbogen KA, Gold MR, Yao Y, Zou J, Fan X. Comparisons of long-term clinical outcomes with left bundle branch pacing, left ventricular septal pacing, and biventricular pacing for cardiac resynchronization therapy. Heart Rhythm 2024; 21:1342-1353. [PMID: 38461922 DOI: 10.1016/j.hrthm.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/03/2024] [Accepted: 03/05/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Left bundle branch pacing (LBBP) and left ventricular septal pacing (LVSP) are referred to as left bundle branch area pacing. OBJECTIVE This study investigated whether long-term clinical outcomes differ in patients undergoing LBBP, LVSP, and biventricular pacing (BiVP) for cardiac resynchronization therapy (CRT). METHODS Consecutive patients with reduced left ventricular ejection fraction (LVEF <50%) undergoing CRT were prospectively enrolled if they underwent successful LBBP, LVSP, or BiVP. The primary composite end point was all-cause mortality or heart failure hospitalization. Secondary end points included all-cause mortality, heart failure hospitalization, and echocardiographic measures of reverse remodeling. RESULTS A total of 259 patients (68 LBBP, 38 LVSP, and 153 BiVP) were observed for a mean duration of 28.8 ± 15.8 months. LBBP was associated with a significantly reduced risk of the primary end point by 78% compared with both BiVP (7.4% vs 41.2%; adjusted hazard ratio [aHR], 0.22 [0.08-0.57]; P = .002) and LVSP (7.4% vs 47.4%; aHR, 0.22 [0.08-0.63]; P = .004]. The adjusted risk of all-cause mortality was significantly higher in LVSP than in BiVP (31.6% vs 7.2%; aHR, 3.19 [1.38-7.39]; P = .007) but comparable between LBBP and BiVP (2.9% vs 7.2%; aHR, 0.33 [0.07-1.52], P = .155). Propensity score adjustment also obtained similar results. LBBP showed a higher rate of echocardiographic response (ΔLVEF ≥10%: 60.0% vs 36.2% vs 16.1%; P < .001) than BiVP or LVSP. CONCLUSION LBBP yielded long-term clinical outcomes superior to those of BiVP and LVSP. The role of LVSP for CRT needs to be reevaluated because of its high mortality risk.
Collapse
Affiliation(s)
- Haojie Zhu
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Chaotong Qin
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Anjie Du
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qian Wang
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Chen He
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Fengwei Zou
- Department of Cardiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - Xiaofei Li
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jin Tao
- Department of Echocardiography, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chuangshi Wang
- Medical Research and Biometrics Center, National Clinical Research Center for Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Zhimin Liu
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Siyuan Xue
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jiaxin Zeng
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhiyong Qian
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yao Wang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaofeng Hou
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | | | - Michael R Gold
- Department of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Yan Yao
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jiangang Zou
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Xiaohan Fan
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.
| |
Collapse
|
3
|
Curila K, Poviser L, Stros P, Jurak P, Whinnett Z, Jastrzebski M, Waldauf P, Smisek R, Viscor I, Hozman M, Osmancik P, Kryze L, Kautzner J. LVSP and LBBP Result in Similar or Improved LV Synchrony and Hemodynamics Compared to BVP. JACC Clin Electrophysiol 2024; 10:1722-1732. [PMID: 38829298 DOI: 10.1016/j.jacep.2024.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/25/2024] [Accepted: 04/27/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND The effect of left ventricular septal myocardial pacing (LVSP) and left bundle branch pacing (LBBP) on ventricular synchrony and left ventricular (LV) hemodynamic status is poorly understood. OBJECTIVES The aim of this study was to investigate the impact of LVSP and LBBP vs biventricular pacing (BVP) on ventricular electrical synchrony and hemodynamic status in cardiac resynchronization therapy patients. METHODS In cardiac resynchronization therapy candidates with LV conduction disease, ventricular synchrony was assessed by measuring QRS duration (QRSd) and using ultra-high-frequency electrocardiography. LV electrical dyssynchrony was assessed as the difference between the first activation in leads V1 to V8 to the last from leads V4 to V8. LV hemodynamic status was estimated using invasive systolic blood pressure measurement during multiple transitions between LBBP, LVSP, and BVP. RESULTS A total of 35 patients with a mean LV ejection fraction of 29% and a mean QRSd of 168 ± 24 ms were included. Thirteen had ischemic cardiomyopathy. QRSd during BVP, LVSP, and LBBP was the same, but LBBP provided shorter LV electrical dyssynchrony than BVP (-10 ms; 95% CI: -16 to -4 ms; P = 0.001); the difference between LVSP and BVP was not significant (-5 ms; 95% CI: -12 to 1 ms; P = 0.10). LBBP was associated with higher systolic blood pressure than BVP (4%; 95% CI: 2%-5%; P < 0.001), whereas LVSP was not (1%; 95% CI: 0%-2%; P = 0.10). Hemodynamic differences during LBBP and LVSP vs BVP were more pronounced in nonischemic than ischemic patients. CONCLUSIONS Ultra-high-frequency electrocardiography allowed the documentation of differences in LV synchrony between LBBP, LVSP, and BVP, which were not observed by measuring QRSd. LVSP provided the same LV synchrony and hemodynamic status as BVP, while LBBP was better than BVP in both.
Collapse
Affiliation(s)
- Karol Curila
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic.
| | - Lukas Poviser
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Petr Stros
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Pavel Jurak
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czech Republic
| | - Zachary Whinnett
- Department of Cardiology, National Heart and Lung Institute, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Marek Jastrzebski
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Petr Waldauf
- Department of Anesthesia and Intensive Care, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Radovan Smisek
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czech Republic
| | - Ivo Viscor
- Institute of Scientific Instruments, Czech Academy of Sciences, Brno, Czech Republic
| | - Marek Hozman
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Pavel Osmancik
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Lukas Kryze
- Institute of Clinical and Experimental Medicine, Prague, Czech Republic
| | - Josef Kautzner
- Institute of Clinical and Experimental Medicine, Prague, Czech Republic
| |
Collapse
|
4
|
Cheng S, Li H, Hu Y, Jin H, Weng S, He P, Huang H, Liu X, Gu M, Niu H, Cai M, Pei J, Chen L, Ding L, Hua W. Left Bundle Branch Area Pacing With or Without Conduction System Capture in Heart Failure Models. JACC Clin Electrophysiol 2024:S2405-500X(24)00366-9. [PMID: 38970598 DOI: 10.1016/j.jacep.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 04/10/2024] [Accepted: 05/01/2024] [Indexed: 07/08/2024]
Abstract
BACKGROUND Left bundle branch area pacing includes left bundle branch pacing (LBBP) and left ventricular septal pacing (LVSP), which is effective in patients with dyssynchronous heart failure (DHF). However, the basic mechanisms are unknown. OBJECTIVES This study aimed to compare LBBP with LVSP and explore potential mechanisms underlying the better clinical outcomes of LBBP. METHODS A total of 24 beagles were assigned to the following groups: 1) control group; 2) DHF group, left bundle branch ablation followed by 6 weeks of AOO pacing at 200 ppm; 3) LBBP group, DHF for 3 weeks followed by 3 weeks of DOO pacing at 200 ppm; and 4) LVSP with the same interventions in the LBBP group. Metrics of electrocardiogram, echocardiography, hemodynamics, and expression of left ventricular proteins were evaluated. RESULTS Compared with LVSP, LBBP had better peak strain dispersion (44.67 ± 1.75 ms vs 55.50 ± 4.85 ms; P < 0.001) and hemodynamic effect (dP/dtmax improvement: 27.16% ± 7.79% vs 11.37% ± 4.73%; P < 0.001), whereas no significant differences in cardiac function were shown. The altered expressions of proteins in the lateral wall vs septum in the DHF group were partially reversed by LBBP and LVSP, which was associated with the contraction and adhesion process, separately. CONCLUSIONS The animal study demonstrated that LBBP offered better mechanical synchrony and improved hemodynamics than LVSP, which might be explained by the reversed expression of contraction proteins. These results supported the potential superiority of left bundle branch area pacing with the capture of the conduction system in DHF model.
Collapse
Affiliation(s)
- Sijing Cheng
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hui Li
- Department of Ultrasound, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yiran Hu
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Cardiology and Macrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
| | - Han Jin
- Cardiology department, Peking University First Hospital, Beijing, China
| | - Sixian Weng
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Pengkang He
- Cardiology department, Peking University First Hospital, Beijing, China
| | - Hao Huang
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xi Liu
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Min Gu
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongxia Niu
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Minsi Cai
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianqiu Pei
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Liang Chen
- Department of Cardiac Surgery, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College. Beijing, China
| | - Ligang Ding
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Hua
- Department of Cardiology, The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| |
Collapse
|
5
|
Parlavecchio A, Vetta G, Coluccia G, Pistelli L, Caminiti R, Crea P, Ajello M, Magnocavallo M, Dattilo G, Foti R, Carerj S, Chierchia GB, de Asmundis C, Della Rocca DG, Palmisano P. Success and complication rates of conduction system pacing: a meta-analytical observational comparison of left bundle branch area pacing and His bundle pacing. J Interv Card Electrophysiol 2024; 67:719-729. [PMID: 37642801 DOI: 10.1007/s10840-023-01626-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND Left bundle branch area pacing (LBBAP) and His bundle pacing (HBP) are the main strategies to achieve conduction system pacing (CSP), but only observational studies with few patients have compared the two pacing strategies, sometimes with unclear results given the different definitions of the feasibility and safety outcomes. Therefore, we conducted a meta-analysis aiming to compare the success and complications of LBBAP versus HBP. METHODS We systematically searched the electronic databases for studies published from inception to March 22, 2023, and focusing on LBBAP versus HBP. The study endpoints were CSP success rate, device-related complications, CSP lead-related complications and non-CSP lead-related complications. RESULTS Fifteen observational studies enrolling 2491 patients met the inclusion criteria. LBBAP led to a significant increase in procedural success [91.1% vs 80.9%; RR: 1.15 (95% CI: 1.08-1.22); p < 0.00001] with a significantly lower complication rate [1.8% vs 5.2%; RR: 0.48 (95% CI: 0.29-0.78); p = 0.003], lead-related complications [1.1% vs 4.3%; RR: 0.38 (95% CI: 0.21-0.72); p = 0.003] and lead failure/deactivation [0.2% vs 3.9%; RR: 0.16 (95% CI: 0.07-0.35); p < 0.00001] than HBP. No significant differences were found between CSP lead dislodgement and non-CSP lead-related complications. CONCLUSION This meta-analysis of observational studies showed a higher success rate of LBBAP compared to HBP with a lower incidence of complications.
Collapse
Affiliation(s)
- Antonio Parlavecchio
- Cardiology Unit, Department of Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria, 1, 98124, Messina, Italy.
| | - Giampaolo Vetta
- Cardiology Unit, Department of Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria, 1, 98124, Messina, Italy
| | - Giovanni Coluccia
- Cardiology Unit, "Card. G. Panico" Hospital, Via S. Pio X, 73039, Tricase, Italy
| | - Lorenzo Pistelli
- Cardiology Unit, Department of Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria, 1, 98124, Messina, Italy
| | - Rodolfo Caminiti
- Cardiology Unit, Department of Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria, 1, 98124, Messina, Italy
| | - Pasquale Crea
- Cardiology Unit, Department of Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria, 1, 98124, Messina, Italy
| | - Manuela Ajello
- Cardiology Unit, Department of Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria, 1, 98124, Messina, Italy
| | - Michele Magnocavallo
- Arrhythmology Unit, Ospedale San Giovanni Calibita, Fatebenefratelli Isola Tiberina, Via Ponte Quattro Capi 39, 00186, Rome, Italy
| | - Giuseppe Dattilo
- Cardiology Unit, Department of Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria, 1, 98124, Messina, Italy
| | | | - Scipione Carerj
- Cardiology Unit, Department of Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria, 1, 98124, Messina, Italy
| | - Gian Battista Chierchia
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, European Reference Networks Guard-Heart, Brussels, Belgium
| | - Carlo de Asmundis
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, European Reference Networks Guard-Heart, Brussels, Belgium
| | - Domenico Giovanni Della Rocca
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, European Reference Networks Guard-Heart, Brussels, Belgium
| | - Pietro Palmisano
- Cardiology Unit, "Card. G. Panico" Hospital, Via S. Pio X, 73039, Tricase, Italy
| |
Collapse
|
6
|
Kiełbasa G, Jastrzębski M, Bednarek A, Kusiak A, Sondej T, Bednarski A, Ostrowska A, Żydzik Ł, Rajzer M, Vijayaraman P, Moskal P. Strength-duration curves for left bundle branch area pacing. Heart Rhythm 2024:S1547-5271(24)02568-2. [PMID: 38759916 DOI: 10.1016/j.hrthm.2024.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUND Despite growing clinical use of left bundle branch pacing (LBBP), data regarding the fundamentals of this pacing modality, including chronaxie and rheobase, are scarce. OBJECTIVE The purpose of this study was to calculate strength-duration curves with chronaxie and rheobase values for LBBP and left ventricular septal pacing (LVSP), and to analyze battery current drain and presence of selective LBBP at very short pulse duration (PD). METHODS A group of 141 patients with permanent LBBP were studied. LBBP and LVSP capture thresholds were assessed at 6 different PDs to calculate the strength-duration curves. Battery current drain at these PDs and presence of selective LBBP were determined. For comparison of strength-duration curves between His-bundle pacing (HBP) and LBBP, source data from our previous work based on 127 patients with HBP were obtained. RESULTS The chronaxies for LBBP and LVSP were very similar (0.38 vs 0.39 ms), and the rheobases were identical (0.27 V). The chronaxie for LBBP was lower than for HBP (0.38 vs 0.53 ms; P <.001), whereas rheobases were similar (0.27 vs 0.26 V). A narrow zone of selective capture was present in 19% and 41% of patients at PD of 0.06 and 0.03 ms, respectively. When pacing with the safety margin of +1 V, the lowest battery current drain was achieved with PD of 0.2 ms. CONCLUSION The obtained strength-duration curves for LBBP and LVSP provide insights to optimal programming of left bundle branch area pacing devices with regard to PD, voltage amplitude, battery longevity, and selective capture.
Collapse
Affiliation(s)
- Grzegorz Kiełbasa
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland; First Department of Cardiology, Interventional Electrocardiology and Hypertension University Hospital in Krakow, Krakow, Poland.
| | - Marek Jastrzębski
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland; Electrophysiology Laboratory, University Hospital in Krakow, Krakow, Poland
| | - Agnieszka Bednarek
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland; First Department of Cardiology, Interventional Electrocardiology and Hypertension University Hospital in Krakow, Krakow, Poland
| | - Aleksander Kusiak
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Tomasz Sondej
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Adam Bednarski
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Aleksandra Ostrowska
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Łukasz Żydzik
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Marek Rajzer
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland; First Department of Cardiology, Interventional Electrocardiology and Hypertension University Hospital in Krakow, Krakow, Poland
| | - Pugazhendhi Vijayaraman
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland; Geisinger Heart Institute, Wilkes-Barre, Pennsylvania
| | - Paweł Moskal
- Electrophysiology Laboratory, University Hospital in Krakow, Krakow, Poland
| |
Collapse
|
7
|
Tan ESJ, Soh R, Lee JY, Boey E, Chan SP, Lim TW, Yeo WT, Leong KMW, Seow SC, Kojodjojo P. Prognostic benefits of His-Purkinje capture in physiological pacemakers for bradycardia. J Cardiovasc Electrophysiol 2024; 35:727-736. [PMID: 38351331 DOI: 10.1111/jce.16211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/11/2023] [Accepted: 01/29/2024] [Indexed: 04/10/2024]
Abstract
INTRODUCTION Clinical outcomes of long-term ventricular septal pacing (VSP) without His-Purkinje capture remain unknown. This study evaluated the differences in clinical outcomes between conduction system pacing (CSP), VSP, and right ventricular pacing (RVP). METHODS Consecutive patients with bradycardia indicated for pacing from 2016 to 2022 were prospectively followed for the clinical endpoints of heart failure (HF)-hospitalizations and all-cause mortality at 2 years. VSP was defined as septal pacing due to unsuccessful CSP implant or successful CSP followed by loss of His-Purkinje capture within 90 days. RESULTS Among 1016 patients (age 73.9 ± 11.2 years, 47% female, 48% atrioventricular block), 612 received RVP, 335 received CSP and 69 received VSP. Paced QRS duration was similar between VSP and RVP, but both significantly longer than CSP (p < .05). HF-hospitalizations occurred in 130 (13%) patients (CSP 7% vs. RVP 16% vs. VSP 13%, p = .001), and all-cause mortality in 143 (14%) patients (CSP 7% vs. RVP 19% vs. VSP 9%, p < .001). The association of pacing modality with clinical events was limited to those with ventricular pacing (Vp) > 20% (pinteraction < .05). Adjusting for clinical risk factors among patients with Vp > 20%, VSP (adjusted hazard ratio [AHR]: 4.74, 95% confidence interval [CI]: 1.57-14.36) and RVP (AHR: 3.08, 95% CI: 1.44-6.60) were associated with increased hazard of HF-hospitalizations, and RVP (2.52, 95% CI: 1.19-5.35) with increased mortality, compared to CSP. Clinical endpoints did not differ between VSP and RVP with Vp > 20%, or amongst groups with Vp < 20%. CONCLUSION Conduction system capture is associated with improved clinical outcomes. CSP should be preferred over VSP or RVP during pacing for bradycardia.
Collapse
Affiliation(s)
- Eugene S J Tan
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - Rodney Soh
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Jie-Ying Lee
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Elaine Boey
- Department of Cardiology, Ng Teng Fong General Hospital, Singapore, Singapore
| | - Siew-Pang Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - Toon Wei Lim
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - Wee Tiong Yeo
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Kevin M W Leong
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Swee-Chong Seow
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - Pipin Kojodjojo
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
- Department of Cardiology, Ng Teng Fong General Hospital, Singapore, Singapore
| |
Collapse
|
8
|
Leinveber P, Halamek J, Curila K, Prinzen F, Lipoldova J, Matejkova M, Smisek R, Plesinger F, Nagy A, Novak M, Viscor I, Vondra V, Jurak P. Ultra-high-frequency ECG volumetric and negative derivative epicardial ventricular electrical activation pattern. Sci Rep 2024; 14:5681. [PMID: 38454102 PMCID: PMC10920693 DOI: 10.1038/s41598-024-55789-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 02/27/2024] [Indexed: 03/09/2024] Open
Abstract
From precordial ECG leads, the conventional determination of the negative derivative of the QRS complex (ND-ECG) assesses epicardial activation. Recently we showed that ultra-high-frequency electrocardiography (UHF-ECG) determines the activation of a larger volume of the ventricular wall. We aimed to combine these two methods to investigate the potential of volumetric and epicardial ventricular activation assessment and thereby determine the transmural activation sequence. We retrospectively analyzed 390 ECG records divided into three groups-healthy subjects with normal ECG, left bundle branch block (LBBB), and right bundle branch block (RBBB) patients. Then we created UHF-ECG and ND-ECG-derived depolarization maps and computed interventricular electrical dyssynchrony. Characteristic spatio-temporal differences were found between the volumetric UHF-ECG activation patterns and epicardial ND-ECG in the Normal, LBBB, and RBBB groups, despite the overall high correlations between both methods. Interventricular electrical dyssynchrony values assessed by the ND-ECG were consistently larger than values computed by the UHF-ECG method. Noninvasively obtained UHF-ECG and ND-ECG analyses describe different ventricular dyssynchrony and the general course of ventricular depolarization. Combining both methods based on standard 12-lead ECG electrode positions allows for a more detailed analysis of volumetric and epicardial ventricular electrical activation, including the assessment of the depolarization wave direction propagation in ventricles.
Collapse
Affiliation(s)
- Pavel Leinveber
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.
| | - Josef Halamek
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Karol Curila
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Frits Prinzen
- Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, Netherlands
| | - Jolana Lipoldova
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
- First Department of Internal Medicine and Cardioangiology, St. Anne's University Hospital Brno, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Magdalena Matejkova
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Radovan Smisek
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, Brno, Czech Republic
| | - Filip Plesinger
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Andrej Nagy
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
- First Department of Internal Medicine and Cardioangiology, St. Anne's University Hospital Brno, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Miroslav Novak
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
- First Department of Internal Medicine and Cardioangiology, St. Anne's University Hospital Brno, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Ivo Viscor
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Vlastimil Vondra
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Pavel Jurak
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| |
Collapse
|
9
|
Li M, Li C, Li J, Yu H, Xu G, Gao Y, Xu B, Sun M, Wang Z, Han Y, Liang Y. An individualized criterion for left bundle branch capture in patients with a narrow QRS complex. Heart Rhythm 2024; 21:294-300. [PMID: 37952864 DOI: 10.1016/j.hrthm.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/25/2023] [Accepted: 11/03/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Left bundle branch (LBB) pacing (LBBP) is a physiological pacing; however, the accuracy of current electrocardiographic criteria for LBBP remains inadequate. OBJECTIVE The purpose of this study was to establish a novel individualized criterion to improve the accuracy of LBBP determination in patients with a narrow QRS complex. METHODS Patients in whom both LBBP and left ventricular septal pacing (LVSP) were acquired during operation were enrolled. LBB conduction time (LBBCT) was measured from LBB potential (LBBpo) to intrinsic QRS onset. LBBpo-V6RWPT, Native-V6RWPT, and Paced-V6RWPT were respectively measured from LBBpo, intrinsic QRS onset, and stimulus to R-wave peak in V6. ΔV6RWPT was the difference value between Paced-V6RWPT and Native-V6RWPT. The accuracy of ΔV6RWPT criterion for determining LBBP was evaluated. RESULTS In all 71 enrolled patients, ΔV6RWPT was <30 ms during LBBP (21.3 ± 4.6 ms; range 9.3-28.3 ms) but was >30 ms during LVSP (38.5 ± 4.6 ms; range 31.1-47.0 ms). The probability distribution of ΔV6RWPT was well separated between LBBP and LVSP. Sensitivity and specificity of the novel criterion of "ΔV6RWPT <30 ms" for determining LBBP both were 100%. However, the optimal cutoff value of Paced-V6RWPT for validation of LBBP was 64.2 ms, and sensitivity and specificity were 84.5% and 97.2%, respectively. Paced-V6RWPT during LBBP was equivalent to LBBpo-V6RWPT in all patients. There was a strong linear correlation between Native-V6RWPT and LBBpo-V6RWPT (r = 0.796; P <.001). CONCLUSION ΔV6RWPT could be an accurate individualized criterion for determining LBB capture with high sensitivity and specificity and was superior over the fixed Paced-V6RWPT criterion.
Collapse
Affiliation(s)
- Miaomiao Li
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Changqing Li
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Jialin Li
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Haibo Yu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Guoqing Xu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Yang Gao
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Baige Xu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Mingyu Sun
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Zulu Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Yaling Han
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China
| | - Yanchun Liang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Shenyang, China.
| |
Collapse
|
10
|
Burri H. Maintaining mechanical synchrony with left bundle branch area pacing. Eur Heart J Cardiovasc Imaging 2024; 25:337-338. [PMID: 37966280 DOI: 10.1093/ehjci/jead310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/16/2023] Open
Affiliation(s)
- Haran Burri
- Cardiac Pacing Unit, Cardiology Department, University Hospital of Geneva, Rue Gabrielle Perret Gentil 4, Geneva 1211, Switzerland
| |
Collapse
|
11
|
Diaz JC, Tedrow UB, Duque M, Aristizabal J, Braunstein ED, Marin J, Niño C, Bastidas O, Lopez Cabanillas N, Koplan BA, Hoyos C, Matos CD, Hincapie D, Velasco A, Steiger NA, Kapur S, Tadros TM, Zei PC, Sauer WH, Romero JE. Left Bundle Branch Pacing vs Left Ventricular Septal Pacing vs Biventricular Pacing for Cardiac Resynchronization Therapy. JACC Clin Electrophysiol 2024; 10:295-305. [PMID: 38127008 DOI: 10.1016/j.jacep.2023.10.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/04/2023] [Accepted: 10/20/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Left bundle branch pacing (LBBP) and left ventricular septal pacing (LVSP) are considered to be acceptable as LBBAP strategies. Differences in clinical outcomes between LBBP and LVSP are yet to be determined. OBJECTIVES The purpose of this study was to compare the outcomes of LBBP vs LVSP vs BIVP for CRT. METHODS In this prospective multicenter observational study, LBBP was compared with LVSP and BIVP in patients undergoing CRT. The primary composite outcome was freedom from heart failure (HF)-related hospitalization and all-cause mortality. Secondary outcomes included individual components of the primary outcome, postprocedural NYHA functional class, and electrocardiographic and echocardiographic parameters. RESULTS A total of 415 patients were included (LBBP: n = 141; LVSP: n = 31; BIVP: n = 243), with a median follow-up of 399 days (Q1-Q3: 249.5-554.8 days). Freedom from the primary composite outcomes was 76.6% in the LBBP group and 48.4% in the LVSP group (HR: 1.37; 95% CI: 1.143-1.649; P = 0.001), driven by a 31.4% absolute increase in freedom from HF-related hospitalizations (83% vs 51.6%; HR: 3.55; 95% CI: 1.856-6.791; P < 0.001) without differences in all-cause mortality. LBBP was also associated with a higher freedom from the primary composite outcome compared with BIVP (HR: 1.43; 95% CI: 1.175-1.730; P < 0.001), with no difference between LVSP and BIVP. CONCLUSIONS In patients undergoing CRT, LBBP was associated with improved outcomes compared with LVSP and BIVP, while outcomes between BIVP and LVSP are similar.
Collapse
Affiliation(s)
- Juan C Diaz
- Cardiac Arrhythmia Service, Division of Cardiology, Clinica Las Vegas, Universidad CES Medical School, Medellin, Colombia
| | - Usha B Tedrow
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Mauricio Duque
- Cardiac Arrhythmia Service, Division of Cardiology, Clinica Las Vegas, Universidad CES Medical School, Medellin, Colombia
| | - Julian Aristizabal
- Cardiac Arrhythmia and Electrophysiology Service, Division of Cardiology, Department of Medicine, Clinica Las Americas, Medellin, Colombia
| | - Eric D Braunstein
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai, Los Angeles, California, USA
| | - Jorge Marin
- Cardiac Arrhythmia and Electrophysiology Service, Division of Cardiology, Department of Medicine, Clinica Las Americas, Medellin, Colombia
| | - Cesar Niño
- Cardiac Arrhythmia and Electrophysiology Service, Clinica SOMER, Rionegro, Colombia
| | - Oriana Bastidas
- Cardiac Arrhythmia and Electrophysiology Service, Hospital Pablo Tobón Uribe, Medellin, Colombia
| | | | - Bruce A Koplan
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Carolina Hoyos
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Carlos D Matos
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Daniela Hincapie
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Alejandro Velasco
- Electrophysiology Section, University of Texas Health Sciences Center, San Antonio, Texas, USA
| | - Nathaniel A Steiger
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Sunil Kapur
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Thomas M Tadros
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Paul C Zei
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - William H Sauer
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Jorge E Romero
- Cardiac Arrhythmia Service, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
| |
Collapse
|
12
|
Cano Ó, Jover P, Ayala HD, Navarrete-Navarro J, Osca J, Izquierdo M, Navarro J, Martínez-Dolz L. Left bundle branch pacing versus left ventricular septal pacing as a primary procedural endpoint during left bundle branch area pacing: Evaluation of two different implant strategies. J Cardiovasc Electrophysiol 2024; 35:120-129. [PMID: 37962088 DOI: 10.1111/jce.16128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/12/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023]
Abstract
INTRODUCTION Implant procedure features and clinical implications of left bundle branch pacing (LBBP) and left ventricular septal pacing (LVSP) have not been yet fully described. We sought to compare two different left bundle branch area pacing (LBBAP) implant strategies: the first one accepting LVSP as a procedural endpoint and the second one aiming at achieving LBBP in every patient in spite of evidence of previous LVSP criteria. METHODS LVSP was accepted as a procedural endpoint in 162 consecutive patients (LVSP strategy group). In a second phase, LBBP was attempted in every patient in spite of achieving previous LVSP criteria (n = 161, LBBP strategy group). Baseline patient characteristics, implant procedure, and follow-up data were compared. RESULTS The final capture pattern was LBBP in 71.4% and LVSP in 24.2% in the LBBP strategy group compared to 42.7% and 50%, respectively, in the LVSP strategy group. One hundred and eighty-four patients (57%) had proven LBB capture criteria with a significantly shorter paced QRS duration than the 120 patients (37%) with LVSP criteria (115 ± 9 vs. 121 ± 13 ms, p < .001). Implant parameters were comparable between the two strategies but the LBBP strategy resulted in a higher rate of acute septal perforation (11.8% vs. 4.9%, p = .026) without any clinical sequelae. Patients with CRT indications significantly improved left ventricular ejection fraction (LVEF) during follow-up irrespective of the capture pattern (from 35 ± 11% to 45 ± 14% in proven LBBP, p = .024; and from 39 ± 13% to 47 ± 12% for LVSP, p = .003). The presence of structural heart disease and baseline LBBB independently predicted unsuccessful LBB capture. CONCLUSION The LBBP strategy was associated with comparable implant parameters than the LVSP strategy but resulted in higher rates of septal perforation. Proven LBB capture and LVSP showed comparable effects on LVEF during follow-up.
Collapse
Affiliation(s)
- Óscar Cano
- Electrophysiology Section, Cardiology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
- Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Pablo Jover
- Electrophysiology Section, Cardiology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Hebert D Ayala
- Electrophysiology Section, Cardiology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Javier Navarrete-Navarro
- Electrophysiology Section, Cardiology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Joaquín Osca
- Electrophysiology Section, Cardiology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
- Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Maite Izquierdo
- Electrophysiology Section, Cardiology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
- Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Josep Navarro
- Electrophysiology Section, Cardiology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Luis Martínez-Dolz
- Electrophysiology Section, Cardiology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
- Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| |
Collapse
|
13
|
Yang Z, Liang J, Chen R, Pang N, Zhang N, Guo M, Gao J, Wang R. Clinical outcomes of left bundle branch area pacing: Prognosis and specific applications. Pacing Clin Electrophysiol 2024; 47:80-87. [PMID: 38112026 DOI: 10.1111/pace.14907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 11/02/2023] [Accepted: 12/05/2023] [Indexed: 12/20/2023]
Abstract
Cardiac pacing has become a widely accepted treatment strategy for bradyarrhythmia and heart failure. However, conventional right ventricular pacing (RVP) has been associated with electrical dyssynchrony, which may result in atrial fibrillation and heart failure. To achieve physiological pacing, Deshmukh et al. reported the first case of His bundle pacing (HBP) in 2000. This strategy was reported to have preserved ventricular synchronization by activating the conventional conduction system. Nonetheless, due to the anatomical location of the His bundle (HB), several issues such as high pacing thresholds, lead fixation, and early battery depletion may pose a challenge. Recently, left bundle branch area pacing (LBBAP) has emerged as a novel physiological pacing strategy to achieve conduction system pacing by capturing the left bundle branch through the deep septum. Additionally, several studies have investigated the clinical outcomes of LBBAP. In this paper, we describe the pacing parameters, QRS duration (QRSd), cardiac function, complications, and specific applications of LBBAP in recent years.
Collapse
Affiliation(s)
- Zhen Yang
- The First Clinical Medical College, Shanxi Medical University, Shanxi, China
- Department of Cardiology, First Hospital of Shanxi Medical University, Shanxi, China
| | - Jiadong Liang
- The First Clinical Medical College, Shanxi Medical University, Shanxi, China
- Department of Cardiology, First Hospital of Shanxi Medical University, Shanxi, China
| | - Ruizhe Chen
- The First Clinical Medical College, Shanxi Medical University, Shanxi, China
- Department of Cardiology, First Hospital of Shanxi Medical University, Shanxi, China
| | - Naidong Pang
- The First Clinical Medical College, Shanxi Medical University, Shanxi, China
- Department of Cardiology, First Hospital of Shanxi Medical University, Shanxi, China
| | - Nan Zhang
- Department of Cardiology, First Hospital of Shanxi Medical University, Shanxi, China
| | - Min Guo
- Department of Cardiology, First Hospital of Shanxi Medical University, Shanxi, China
| | - Jia Gao
- Department of Cardiology, First Hospital of Shanxi Medical University, Shanxi, China
| | - Rui Wang
- Department of Cardiology, First Hospital of Shanxi Medical University, Shanxi, China
| |
Collapse
|
14
|
Diaz JC, Duque M, Aristizabal J, Marin J, Niño C, Bastidas O, Ruiz LM, Matos CD, Hoyos C, Hincapie D, Velasco A, Romero JE. The Emerging Role of Left Bundle Branch Area Pacing for Cardiac Resynchronisation Therapy. Arrhythm Electrophysiol Rev 2023; 12:e29. [PMID: 38173800 PMCID: PMC10762674 DOI: 10.15420/aer.2023.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/04/2023] [Indexed: 01/05/2024] Open
Abstract
Cardiac resynchronisation therapy (CRT) reduces the risk of heart failure-related hospitalisations and all-cause mortality, as well as improving quality of life and functional status in patients with persistent heart failure symptoms despite optimal medical treatment and left bundle branch block. CRT has traditionally been delivered by implanting a lead through the coronary sinus to capture the left ventricular epicardium; however, this approach is associated with significant drawbacks, including a high rate of procedural failure, phrenic nerve stimulation, high pacing thresholds and lead dislodgement. Moreover, a significant proportion of patients fail to derive any significant benefit. Left bundle branch area pacing (LBBAP) has recently emerged as a suitable alternative to traditional CRT. By stimulating the cardiac conduction system physiologically, LBBAP can result in a more homogeneous left ventricular contraction and relaxation, thus having the potential to improve outcomes compared with conventional CRT strategies. In this article, the evidence supporting the use of LBBAP in patients with heart failure is reviewed.
Collapse
Affiliation(s)
- Juan Carlos Diaz
- Cardiac Arrhythmia and Electrophysiology Service, Division of Cardiology, Clinica Las Vegas, Universidad CES Medical SchoolMedellin, Colombia
| | - Mauricio Duque
- Cardiac Arrhythmia and Electrophysiology Service, Division of Cardiology, Clinica Las Vegas, Universidad CES Medical SchoolMedellin, Colombia
| | - Julian Aristizabal
- Cardiac Arrhythmia and Electrophysiology Service, Division of Cardiology, Department of Medicine, Clinica Las AmericasMedellin, Colombia
| | - Jorge Marin
- Cardiac Arrhythmia and Electrophysiology Service, Division of Cardiology, Department of Medicine, Clinica Las AmericasMedellin, Colombia
| | - Cesar Niño
- Cardiac Arrhythmia and Electrophysiology Service, Hospital Pablo Tobón UribeMedellin, Colombia
| | - Oriana Bastidas
- Cardiac Arrhythmia and Electrophysiology Service, Hospital Pablo Tobón UribeMedellin, Colombia
| | | | - Carlos D Matos
- Cardiac Arrhythmia Service, Brigham and Women’s Hospital, Harvard Medical SchoolBoston, MA, US
| | - Carolina Hoyos
- Cardiac Arrhythmia Service, Brigham and Women’s Hospital, Harvard Medical SchoolBoston, MA, US
| | - Daniela Hincapie
- Cardiac Arrhythmia Service, Brigham and Women’s Hospital, Harvard Medical SchoolBoston, MA, US
| | - Alejandro Velasco
- Electrophysiology Section, University of Texas Health Sciences CentreSan Antonio, TX, US
| | - Jorge E Romero
- Cardiac Arrhythmia Service, Brigham and Women’s Hospital, Harvard Medical SchoolBoston, MA, US
| |
Collapse
|
15
|
Rubio Campal JM, Asís Diaz Cortegana F, Lazaro Rivera C, Garcia Talavera CS, Aguilera Agudo C, Bravo Calero L. QRS axis and polarity in the inferior leads during left bundle branch pacing: Novel criteria in the search for better results. Pacing Clin Electrophysiol 2023; 46:1491-1499. [PMID: 37987482 DOI: 10.1111/pace.14874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Left bundle branch pacing (LBBP) may be achieved in various anatomical sites within the interventricular septum (IVS), thus influencing paced QRS duration (QRSd).The purpose of this study was to determine whether paced QRS axis (QRSâ) and predominant polarity in inferior leads could be associated with a shorter paced QRSd. METHODS We analyzed paced QRSd, QRSâ, polarity in inferior leads, and IVS thickness in patients referred for LBBP. Three paced morphology patterns in the inferior leads were considered: All positive (P), all negative (N) and intermediate (combination of isoelectric, positive, and negative complexes, (I). Patients were divided into two groups according to a paced QRSd < 120 or ≥ 120 ms. RESULTS A total of 125 patients were included (age 76 ± 10 years, 46% female). Mean baseline QRSâ was 8 ± 37°. Paced QRSd was significantly shorter as compared to baseline (120 ± 10 vs. 127 ± 33 ms; p = .017) and significantly different according to paced QRS morphology pattern in the inferior leads (P 49%, 119 ± 9; N 30%, 126 ± 12; I 21%; 113 ± 10 ms; p < .001) or paced QRSâ (Normal 59%, 116 ± 1; Right 6%, 129 ± 1; Left 35%, 124 ± 11 ms; p < .001). On multivariate analysis, a QRSâ > -30°(OR 5.79 [2.40-13.93; 95% CI] p = .001), an Intermediate pattern in inferior leads (OR 3.00 [1.67-8.43; 95% CI] p = .037), and an IVS thickness ≤ 10 mm (OR 2.59 [1.10-6.10; 95% CI]; p = .029) were significantly associated with a paced QRSd < 120 ms. CONCLUSIONS During LBBP, a QRSâ > -30° and intermediate final polarity in inferior leads are associated with a shorter paced QRSd.
Collapse
|
16
|
Vernooy K, Keene D, Huang W, Vijayaraman P. Implant, assessment, and management of conduction system pacing. Eur Heart J Suppl 2023; 25:G15-G26. [PMID: 37970519 PMCID: PMC10637838 DOI: 10.1093/eurheartjsupp/suad115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
His bundle pacing and left bundle branch pacing, together referred to as conduction system pacing, have (re)gained considerable interest over the past years as it has the potential to preserve and/or restore a more physiological ventricular activation when compared with right ventricular pacing and may serve as an alternative for cardiac resynchronization therapy. This review manuscript dives deeper into the implantation techniques and the relevant anatomy of the conduction system for both pacing strategies. Furthermore, the manuscript elaborates on better understanding of conduction system capture with its various capture patterns, its potential complications as well as appropriate follow-up care. Finally, the limitations and its impact on clinical care for both His bundle pacing and left bundle branch pacing are being discussed.
Collapse
Affiliation(s)
- Kevin Vernooy
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, P. Debyelaan 25, 6229 HX, Maastricht, The Netherlands
| | - Daniel Keene
- National Heart and Lung Institute, Imperial College London, UK
| | - Weijian Huang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | | |
Collapse
|
17
|
Vijayaraman P, Chelu MG, Curila K, Dandamudi G, Herweg B, Mori S, Jastrzebski M, Sharma PS, Shivkumar K, Tung R, Upadhyay G, Vernooy K, Welter-Frost A, Whinnett Z, Zanon F, Ellenbogen KA. Cardiac Conduction System Pacing: A Comprehensive Update. JACC Clin Electrophysiol 2023; 9:2358-2387. [PMID: 37589646 DOI: 10.1016/j.jacep.2023.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/10/2023] [Accepted: 06/02/2023] [Indexed: 08/18/2023]
Abstract
The field of cardiac pacing has changed rapidly in the last several years. Since the initial description of His bundle pacing targeting the conduction system, recent advances in pacing the left bundle branch and its fascicles have evolved. The field and investigators' knowledge of conduction system pacing including relevant anatomy and physiology has advanced significantly. The aim of this review is to provide a comprehensive update on recent advances in conduction system pacing.
Collapse
Affiliation(s)
- Pugazhendhi Vijayaraman
- Geisinger Heart Institute, Geisinger Commonwealth School of Medicine, Wilkes-Barre, Pennsylvania, USA.
| | - Mihal G Chelu
- Division of Cardiology, Baylor College of Medicine and Baylor St. Luke's Medical Center and Texas Heart Institute, Houston, Texas, USA
| | - Karol Curila
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Gopi Dandamudi
- Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Bengt Herweg
- University of South Florida Morsani College of Medicine, Department of Cardiovascular Sciences, Tampa, Florida, USA
| | - Shumpei Mori
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center, UCLA Health System, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Marek Jastrzebski
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Parikshit S Sharma
- Department of Cardiology, Rush University School of Medicine, Chicago, Illinois, USA
| | - Kalyanam Shivkumar
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center, UCLA Health System, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Roderick Tung
- Division of Cardiology, University of Arizona College of Medicine-Phoenix, Banner-University Medical Center, Phoenix, Arizona, USA
| | - Gaurav Upadhyay
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Kevin Vernooy
- Center for Arrhythmia Care, Heart and Vascular Center, University of Chicago, Chicago, Illinois, USA
| | - Allan Welter-Frost
- Cleveland Clinic Indian River Hospital, Heart Vascular and Thoracic Institute, Vero Beach, Florida, USA
| | - Zachary Whinnett
- National Heart and Lung Institute, Imperial College, London, United Kingdom
| | | | - Kenneth A Ellenbogen
- Division of Cardiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| |
Collapse
|
18
|
Zhang W, He L, Zhang J, Fu G, Sheng X, Pan Y, Zeng G, Li Z, Huang J, Lu H, Shi T, Zhou X, Stadler R, Demmer W, Li R. Electrical Synchrony Optimization for Left Bundle Branch Area Pacing in Patients With Bradycardia and Heart Failure. Am J Cardiol 2023; 203:436-443. [PMID: 37540902 DOI: 10.1016/j.amjcard.2023.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 08/06/2023]
Abstract
Left bundle branch area pacing (LBBAP) has emerged as a promising physiological pacing modality. This study was designed to investigate the acute impact of the atrioventricular delay (AVD) on cardiac electrical characteristics and identify an optimal range of AVDs for LBBAP to achieve electrical atrioventricular and interventricular synchrony. Patients indicated for ventricular or biventricular pacing were studied during routine follow-ups at least 3 months after LBBAP implantation. Patients were excluded if they had a complete AV block or persistent atrial fibrillation. AVD was programed from 40 to 240 ms or until intrinsic conduction occurred. Optimal AVD was determined by the electrocardiography criteria, including QRS duration, reduced R-wave in lead V1, reduced notching or slurring in lateral leads, and more desirable precordial QRS transition. A total of 38 patients (age 68.7 ± 10.3 years; 16 male (42%); 18 dual-chamber pacemakers and 20 cardiac resynchronization therapy devices; average follow-up period 15.1 ± 10.2 months) were included. The fusion of LBBAP and intrinsic right ventricular conduction occurred in 21 patients with corresponding optimal AVD determined. A great proportion (∼85%) of the optimal AVDs ranged from 50% to 80% of the observed atrium-to-left bundle branch-sensing (A-LBBS) intervals. The linear correlation between the optimal AVD and corresponding A-LBBS interval (optimal AVD = 0.84 × [A-LBSs interval] - 36 ms) produced R = 0.86 and p <0.0001. In conclusion, AVD selection during LBBAP greatly impacted the ventricular electrical characteristics and the optimal AVD was linearly correlated with the corresponding A-LBBS interval.
Collapse
Affiliation(s)
- Weiwei Zhang
- Department of Cardiology, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lang He
- Department of Cardiology, Greentown Hospital, Hangzhou, China
| | - Jiefang Zhang
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guosheng Fu
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xia Sheng
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiwen Pan
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guang Zeng
- Department of Cardiology, Greentown Hospital, Hangzhou, China
| | - Zhidi Li
- Department of Cardiology, Greentown Hospital, Hangzhou, China
| | - Jingjuan Huang
- Department of Cardiology, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hongyang Lu
- Cardiac Rhythm Management, Medtronic Technology Center, Medtronic (Shanghai) Ltd., Shanghai, China
| | - Tianyi Shi
- Cardiac Rhythm Management, Medtronic Technology Center, Medtronic (Shanghai) Ltd., Shanghai, China
| | - Xiaohong Zhou
- Cardiac Rhythm Management, Medtronic plc., Mounds View, Minnesota
| | - Robert Stadler
- Cardiac Rhythm Management, Medtronic plc., Mounds View, Minnesota
| | - Wade Demmer
- Cardiac Rhythm Management, Medtronic plc., Mounds View, Minnesota
| | - Ruogu Li
- Department of Cardiology, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| |
Collapse
|
19
|
Mehta VS, Niederer S, Rinaldi CA. Editorial: Future directions in conduction system pacing to achieve cardiac resynchronization. Front Physiol 2023; 14:1281552. [PMID: 37781223 PMCID: PMC10535105 DOI: 10.3389/fphys.2023.1281552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023] Open
Affiliation(s)
- Vishal S. Mehta
- Cardiology Department, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
| | - Steven Niederer
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- Biomedical Engineering, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Christopher A. Rinaldi
- Cardiology Department, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
| |
Collapse
|
20
|
Curila K, Burri H. Left ventricular septal pacing - can we trust the ECG? Indian Pacing Electrophysiol J 2023; 23:155-157. [PMID: 37429526 PMCID: PMC10491966 DOI: 10.1016/j.ipej.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/28/2023] [Accepted: 07/07/2023] [Indexed: 07/12/2023] Open
Abstract
In contrast to left bundle branch pacing, the criteria for left ventricular septal pacing (LVSP) were never validated. LVSP is usually defined as deep septal deployment of the pacing lead with a pseudo-right bundle branch morphology in V1. The case report describes an implant procedure during which this definition of LVSP was fulfilled in four of five pacing locations within the septum, with the shallowest of them present in less than 50% of the septal thickness. The case highlights the need for a more precise definition of LVSP.
Collapse
Affiliation(s)
- Karol Curila
- Department of Cardiology, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic.
| | - Haran Burri
- Cardiac Pacing Unit, Cardiology Department, University Hospital of Geneva, Geneva, Switzerland
| |
Collapse
|
21
|
Curila K, Vijayaraman P. Left ventricular resynchronization with left bundle branch area pacing: does the type of capture matter? Europace 2023; 25:euad152. [PMID: 37294670 PMCID: PMC10254070 DOI: 10.1093/europace/euad152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023] Open
Affiliation(s)
- Karol Curila
- Cardiocenter, Third Faculty of Medicine and Faculty Hospital Kralovske Vinohrady, Prague, Czechia
| | - Pugazhendhi Vijayaraman
- Geisinger Heart Institute, Geisinger Commonwealth School of Medicine, 1000 E Mountain Blvd, MC 36-10, Wilkes Barre, PA 18711, USA
| |
Collapse
|
22
|
Meiburg R, Rijks JHJ, Beela AS, Bressi E, Grieco D, Delhaas T, Luermans JGLM, Prinzen FW, Vernooy K, Lumens J. Comparison of novel ventricular pacing strategies using an electro-mechanical simulation platform. Europace 2023; 25:euad144. [PMID: 37306315 PMCID: PMC10259067 DOI: 10.1093/europace/euad144] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/06/2023] [Indexed: 06/13/2023] Open
Abstract
AIMS Focus of pacemaker therapy is shifting from right ventricular (RV) apex pacing (RVAP) and biventricular pacing (BiVP) to conduction system pacing. Direct comparison between the different pacing modalities and their consequences to cardiac pump function is difficult, due to the practical implications and confounding variables. Computational modelling and simulation provide the opportunity to compare electrical, mechanical, and haemodynamic consequences in the same virtual heart. METHODS AND RESULTS Using the same single cardiac geometry, electrical activation maps following the different pacing strategies were calculated using an Eikonal model on a three-dimensional geometry, which were then used as input for a lumped mechanical and haemodynamic model (CircAdapt). We then compared simulated strain, regional myocardial work, and haemodynamic function for each pacing strategy. Selective His-bundle pacing (HBP) best replicated physiological electrical activation and led to the most homogeneous mechanical behaviour. Selective left bundle branch (LBB) pacing led to good left ventricular (LV) function but significantly increased RV load. RV activation times were reduced in non-selective LBB pacing (nsLBBP), reducing RV load but increasing heterogeneity in LV contraction. LV septal pacing led to a slower LV and more heterogeneous LV activation than nsLBBP, while RV activation was similar. BiVP led to a synchronous LV-RV, but resulted in a heterogeneous contraction. RVAP led to the slowest and most heterogeneous contraction. Haemodynamic differences were small compared to differences in local wall behaviour. CONCLUSION Using a computational modelling framework, we investigated the mechanical and haemodynamic outcome of the prevailing pacing strategies in hearts with normal electrical and mechanical function. For this class of patients, nsLBBP was the best compromise between LV and RV function if HBP is not possible.
Collapse
Affiliation(s)
- Roel Meiburg
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Universiteitssingel 40, 6200 MD, Maastricht, The Netherlands
| | - Jesse H J Rijks
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center+ (MUMC+), Maastricht, The Netherlands
| | - Ahmed S Beela
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Universiteitssingel 40, 6200 MD, Maastricht, The Netherlands
- Department of Cardiovascular Diseases, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Edoardo Bressi
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center+ (MUMC+), Maastricht, The Netherlands
- Department of Cardiovascular Sciences, Policlinico Casilino of Rome, Rome, Italy
| | - Domenico Grieco
- Department of Cardiovascular Sciences, Policlinico Casilino of Rome, Rome, Italy
| | - Tammo Delhaas
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Universiteitssingel 40, 6200 MD, Maastricht, The Netherlands
| | - Justin G LM Luermans
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center+ (MUMC+), Maastricht, The Netherlands
- Department of Cardiology, Radboud University Medical Centre (Radboudumc), Nijmegen, The Netherlands
| | - Frits W Prinzen
- Department of Physiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - Kevin Vernooy
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center+ (MUMC+), Maastricht, The Netherlands
| | - Joost Lumens
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Universiteitssingel 40, 6200 MD, Maastricht, The Netherlands
| |
Collapse
|
23
|
Lu W, Lin J, Li Y, Hu Q, Cheng C, Chen R, Dai Y, Chen K, Zhang S. Quantitative analysis reveals influencing factors to facilitate successful anodal-ring capture in left bundle branch pacing. Europace 2023; 25:euad172. [PMID: 37337705 PMCID: PMC10292952 DOI: 10.1093/europace/euad172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/12/2023] [Indexed: 06/21/2023] Open
Abstract
AIMS Left bundle branch pacing (LBBP) maintains left ventricular synchrony but induces right ventricular conduction delay (RVCD). Although anodal-ring capture (ARC) during bipolar LBBP improves RVCD, it is not achieved in all patients receiving LBBP. This study aimed to analyze the factors influencing ARC implementation. METHODS AND RESULTS Patients receiving LBBP with intraoperative ARC testing were enrolled. Electrocardiographic parameters were measured, including stimulus-to-QRS duration (stim-QRSd), stimulus-to-left/right ventricular activation time (stim-LVAT/RVAT), and V6-V1 interpeak interval. The distribution of lead-tip sites was described as the corrected longitudinal and lateral distance (longit-/lat-dist). Relative angles of the LBBP lead were measured. Echocardiography in short-axis view was used to measure the intraseptal lead length. Intergroup comparisons, correlation analysis, and stepwise logistic regression were performed. In total, 105 patients were included, among which 65 (62%) patients achieved ARC at a pacing output ≤ 5.0 V/0.5 ms (average 3.1 V/0.5 ms). Anodal-ring capture further shortened the stim-QRSd by 13.1 ± 7.5 ms. Better unipolar-ring (cathodal) threshold and R-wave sensing in LBBP-ARC group indicated the critical role of ring-septum contact in ARC. Longer corrected longit-dist and shorter corrected lat-dist of lead-tip sites were positively correlated with higher success likelihood of ARC, likely due to the greater relative angle in which the lead enters the septum and consequently the longer intraseptal lead length and better ring-septum contact. CONCLUSION This study elucidated the factors affecting the success likelihood of LBBP-ARC. These findings improve the understanding of LBBP-ARC, providing references for future research and clinical practice.
Collapse
Affiliation(s)
- Wenzhao Lu
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, China
| | - Jinxuan Lin
- Department of Cardiovascular Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Yao Li
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, China
| | - Qingyun Hu
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, China
| | - Chendi Cheng
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, China
| | - Ruohan Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, China
| | - Yan Dai
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, China
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, China
| |
Collapse
|
24
|
Sussenbek O, Rademakers L, Waldauf P, Jurak P, Smisek R, Stros P, Poviser L, Vesela J, Plesinger F, Halamek J, Leinveber P, Herman D, Osmancik P, Curila K. Left bundle branch area pacing results in more physiological ventricular activation than biventricular pacing in patients with left bundle branch block heart failure. Eur Heart J Suppl 2023; 25:E17-E24. [PMID: 37234235 PMCID: PMC10206755 DOI: 10.1093/eurheartjsupp/suad109] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Biventricular pacing (Biv) and left bundle branch area pacing (LBBAP) are methods of cardiac resynchronization therapy (CRT). Currently, little is known about how they differ in terms of ventricular activation. This study compared ventricular activation patterns in left bundle branch block (LBBB) heart failure patients using an ultra-high-frequency electrocardiography (UHF-ECG). This was a retrospective analysis including 80 CRT patients from two centres. UHF-ECG data were obtained during LBBB, LBBAP, and Biv. Left bundle branch area pacing patients were divided into non-selective left bundle branch pacing (NSLBBP) or left ventricular septal pacing (LVSP) and into groups with V6 R-wave peak times (V6RWPT) < 90 ms and ≥ 90 ms. Calculated parameters were: e-DYS (time difference between the first and last activation in V1-V8 leads) and Vdmean (average of V1-V8 local depolarization durations). In LBBB patients (n = 80) indicated for CRT, spontaneous rhythms were compared with Biv (39) and LBBAP rhythms (64). Although both Biv and LBBAP significantly reduced QRS duration (QRSd) compared with LBBB (from 172 to 148 and 152 ms, respectively, both P < 0.001), the difference between them was not significant (P = 0.2). Left bundle branch area pacing led to shorter e-DYS (24 ms) than Biv (33 ms; P = 0.008) and shorter Vdmean (53 vs. 59 ms; P = 0.003). No differences in QRSd, e-DYS, or Vdmean were found between NSLBBP, LVSP, and LBBAP with paced V6RWPTs < 90 and ≥ 90 ms. Both Biv CRT and LBBAP significantly reduce ventricular dyssynchrony in CRT patients with LBBB. Left bundle branch area pacing is associated with more physiological ventricular activation.
Collapse
Affiliation(s)
| | - Leonard Rademakers
- Department of Cardiology, Catharina Ziekenhuis, 5602 ZA Eindhoven, The Netherlands
| | - Petr Waldauf
- Department of Anesthesia and Intensive Care, Charles University, University Hospital Kralovske Vinohrady, Prague 10034, Czechia
| | - Pavel Jurak
- The Czech Academy of Sciences, Institute of Scientific Instruments, Brno 61200, Czechia
| | - Radovan Smisek
- The Czech Academy of Sciences, Institute of Scientific Instruments, Brno 61200, Czechia
| | - Petr Stros
- Cardiocenter, Third Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Srobarova 1150/50, Praha 10, Prague 10034, Czechia
| | - Lukas Poviser
- Cardiocenter, Third Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Srobarova 1150/50, Praha 10, Prague 10034, Czechia
| | - Jana Vesela
- Cardiocenter, Third Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Srobarova 1150/50, Praha 10, Prague 10034, Czechia
| | - Filip Plesinger
- The Czech Academy of Sciences, Institute of Scientific Instruments, Brno 61200, Czechia
| | - Josef Halamek
- The Czech Academy of Sciences, Institute of Scientific Instruments, Brno 61200, Czechia
| | - Pavel Leinveber
- International Clinical Research Center, St. Anne’s University Hospital, Brno 60200, Czechia
| | - Dalibor Herman
- Cardiocenter, Third Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Srobarova 1150/50, Praha 10, Prague 10034, Czechia
| | - Pavel Osmancik
- Cardiocenter, Third Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Srobarova 1150/50, Praha 10, Prague 10034, Czechia
| | | |
Collapse
|
25
|
Wijesuriya N, Mehta V, De Vere F, Strocchi M, Behar JM, Niederer SA, Rinaldi CA. The role of conduction system pacing in patients with atrial fibrillation. Front Cardiovasc Med 2023; 10:1187754. [PMID: 37304966 PMCID: PMC10248047 DOI: 10.3389/fcvm.2023.1187754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 04/24/2023] [Indexed: 06/13/2023] Open
Abstract
Conduction system pacing (CSP) has emerged as a promising novel delivery method for Cardiac Resynchronisation Therapy (CRT), providing an alternative to conventional biventricular epicardial (BiV) pacing in indicated patients. Despite increasing popularity and widespread uptake, CSP has rarely been specifically examined in patients with atrial fibrillation (AF), a cohort which forms a significant proportion of the heart failure (HF) population. In this review, we first examine the mechanistic evidence for the importance of sinus rhythm (SR) in CSP by allowing adjustment of atrioventricular delays (AVD) to achieve the optimal electrical response, and thus, whether the efficacy of CSP may be significantly attenuated compared to conventional BiV pacing in the presence of AF. We next evaluate the largest clinical body of evidence in this field, related to patients receiving CSP following atrioventricular nodal ablation (AVNA) for AF. Finally, we discuss how future research may be designed to address the vital question of how effective CSP in AF patients is, and the potential hurdles we may face in delivering such studies.
Collapse
Affiliation(s)
- Nadeev Wijesuriya
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- Department of Cardiology, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Vishal Mehta
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- Department of Cardiology, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Felicity De Vere
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- Department of Cardiology, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Marina Strocchi
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
| | - Jonathan M. Behar
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- Department of Cardiology, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Steven A. Niederer
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- Research and Innovation Cluster, Alan Turing Institute, London, United Kingdom
| | - Christopher A. Rinaldi
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- Department of Cardiology, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| |
Collapse
|
26
|
Bednarek A, Kiełbasa G, Moskal P, Ostrowska A, Bednarski A, Sondej T, Kusiak A, Rajzer M, Jastrzębski M. Left bundle branch area pacing prevents pacing induced cardiomyopathy in long-term observation. Pacing Clin Electrophysiol 2023. [PMID: 37154051 DOI: 10.1111/pace.14707] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/08/2023] [Accepted: 04/15/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND Left bundle branch area pacing (LBBAP) is one of the methods to deliver conduction system pacing which potentially avoids the negative impact of conventional right ventricular pacing. OBJECTIVE To assess echocardiographic outcomes in a long-term observation in patients with LBBAP implemented for bradyarrhythmia indications. METHODS AND RESULTS A total of 151 patients with symptomatic bradycardia and LBBAP pacemaker implanted, were prospectively included in the study. Subjects with left bundle branch block and CRT indications (n = 29), ventricular pacing burden <40% (n = 11), and loss of LBBAP (n = 10) were excluded from further analysis. At baseline and the last follow-up visit, echocardiography with global longitudinal strain (GLS) assessment, 12-lead ECG, pacemaker interrogation, and blood level of NT-proBNP were performed. The median follow-up period was 23 months (15.5-28). None of the analyzed patients fulfilled the criteria for pacing induced cardiomyopathy (PICM). Improvement in left ventricular ejection fraction (LVEF) and GLS was observed in patients with LVEF <50% at baseline (n = 39): 41.4 ± 9.2% versus 45.6 ± 9.9%, and 12.9 ± 3.6% versus 15.5 ± 3.7%, respectively. In the subgroup with preserved EF (n = 62), LVEF and GLS remained stable at follow-up: 59.3 ± 5.5% versus 60 ± 5.5%, and 19 ± 3.9% versus 19.4 ± 3.8%, respectively. CONCLUSION LBBAP prevents PICM in patients with preserved LVEF and improves left ventricle function in subjects with depressed LVEF. LBBAP might be the preferred pacing modality for bradyarrhythmia indications.
Collapse
Affiliation(s)
- Agnieszka Bednarek
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Grzegorz Kiełbasa
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Paweł Moskal
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Aleksandra Ostrowska
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Adam Bednarski
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Tomasz Sondej
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Aleksander Kusiak
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Marek Rajzer
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Marek Jastrzębski
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| |
Collapse
|
27
|
Schiavone M, Arosio R, Valenza S, Ruggiero D, Mitacchione G, Lombardi L, Viecca M, Forleo GB. Cardiac resynchronization therapy: present and future. Eur Heart J Suppl 2023; 25:C227-C233. [PMID: 37125274 PMCID: PMC10132566 DOI: 10.1093/eurheartjsupp/suad046] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Cardiac resynchronization therapy (CRT) via biventricular pacing (BVP) is a well-established therapy for patients with heart failure with reduced ejection fraction and left bundle branch block, who remain symptomatic despite optimal medical therapy. Despite the long-standing clinical evidence, as well as the familiarity of cardiac electrophysiologists with the implantation technique, CRT via BVP cannot be achieved or may result ineffective in up to one-third of the patients. Therefore, new alternative techniques, such as conduction system pacing and left ventricular pacing, are emerging as potential alternatives to this technique, not only in case of BVP failure, but also as a stand-alone first choice due to several potential advantages over traditional CRT. Specifically, due to its procedural characteristics, left bundle branch area pacing appears to be the most convincing technique, showing comparable efficacy outcomes when compared with traditional CRT, not increasing short-term device-related complications, as well as improving procedural times. However, transvenous leads remain a major limitation of all these pacing modalities. To overcome this limit, a leadless left ventricular endocardial pacing has been developed as an additional tool to achieve a left endocardial activation, although being still associated with non-negligible pitfalls, limiting its current use in clinical practice. This article focuses on the current state and latest progresses in cardiac resynchronization therapy.
Collapse
Affiliation(s)
- Marco Schiavone
- Cardiology Unit, Luigi Sacco University Hospital, Via G.B. Grassi 74, Milan 20157, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Roberto Arosio
- Cardiology Unit, Luigi Sacco University Hospital, Via G.B. Grassi 74, Milan 20157, Italy
| | - Simone Valenza
- Cardiology Unit, Luigi Sacco University Hospital, Via G.B. Grassi 74, Milan 20157, Italy
| | - Diego Ruggiero
- Cardiology Unit, Luigi Sacco University Hospital, Via G.B. Grassi 74, Milan 20157, Italy
| | - Gianfranco Mitacchione
- Cardiology Unit, Luigi Sacco University Hospital, Via G.B. Grassi 74, Milan 20157, Italy
| | - Leonida Lombardi
- Cardiology Unit, Luigi Sacco University Hospital, Via G.B. Grassi 74, Milan 20157, Italy
| | - Maurizio Viecca
- Cardiology Unit, Luigi Sacco University Hospital, Via G.B. Grassi 74, Milan 20157, Italy
| | | |
Collapse
|
28
|
Bressi E, Grieco D, Čurila K, Zanon F, Marcantoni L, Cabrera JA, De Ruvo E, Vernooy K, Calò L. Pacing of the specialized His-Purkinje conduction system: 'back to the future'. Eur Heart J Suppl 2023; 25:C234-C241. [PMID: 37125312 PMCID: PMC10132574 DOI: 10.1093/eurheartjsupp/suad047] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The conduction system of the human heart is composed of specialized cardiomyocytes that initiate and propagate the electric impulse with consequent rhythmic and synchronized contraction of the atria and ventricles, resulting in the normal cardiac cycle. Although the His-Purkinje system (HPS) was already described more than a century ago, there has been a recent resurgence of conduction system pacing (CSP), where pacing leads are positioned in the His bundle region and left bundle branch area to provide physiological cardiac activation as alternatives to the unnatural myocardial stimulation obtained with conventional right ventricular and biventricular pacing. In this review, we describe the fundamental anatomical and pathophysiological aspects of the specialized HPS along with the CSP technique's nuts and bolts to highlight its potential benefits in everyday clinical practice.
Collapse
Affiliation(s)
- Edoardo Bressi
- Corresponding author. Tel: +39 0 3297382095, Fax: 0623188408,
| | - Domenico Grieco
- Department of Cardiovascular Sciences, Policlinico Casilino of Rome, Via Casilina, 1049, 00169 Rome, Italy
| | - Karol Čurila
- Department of Cardiology, Cardiocenter, Third Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Ruská 2411, 100 00 Prague 10-Vinohrady, Czech Republic
| | - Francesco Zanon
- Arrhythmia and Electrophysiology Unit, Department of Cardiology, Santa Maria della Misericordia General Hospital, Viale Tre Martiri, 140, 45100 Rovigo, Italy
| | - Lina Marcantoni
- Arrhythmia and Electrophysiology Unit, Department of Cardiology, Santa Maria della Misericordia General Hospital, Viale Tre Martiri, 140, 45100 Rovigo, Italy
| | - Jose Angel Cabrera
- Unidad de Arritmias, Departamento de Cardiología, Hospital Universitario Quirón-Salud Madrid and Complejo Hospitalario Ruber Juan Bravo, Universidad Europea de Madrid, Calle de Juan Bravo, 49, 28006 Madrid, Spain
| | - Ermenegildo De Ruvo
- Department of Cardiovascular Sciences, Policlinico Casilino of Rome, Via Casilina, 1049, 00169 Rome, Italy
| | - Kevin Vernooy
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, P. Debyelaan 25, 6229 HX Maastricht, The Netherlands
| | - Leonardo Calò
- Department of Cardiovascular Sciences, Policlinico Casilino of Rome, Via Casilina, 1049, 00169 Rome, Italy
| |
Collapse
|
29
|
Braunstein ED, Kagan RD, Olshan DS, Gabriels JK, Thomas G, Ip JE, Markowitz SM, Lerman BB, Liu CF, Cheung JW. Initial experience with stylet-driven versus lumenless lead delivery systems for left bundle branch area pacing. J Cardiovasc Electrophysiol 2023; 34:710-717. [PMID: 36571159 DOI: 10.1111/jce.15789] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 12/12/2022] [Accepted: 12/18/2022] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Left bundle branch area pacing (LBBP) has emerged as an alternative method for conduction system pacing. While initial experience with delivery systems for stylet-driven and lumenless lead implantation for LBBP has been described, data comparing outcomes of stylet-driven versus lumenless lead implantation for LBBP are limited. In this study, we compare success rates and outcomes of LBBP with stylet-driven versus lumenless lead delivery systems. METHODS Eighty-three consecutive patients (mean age 74.1 ± 11.2 years; 56 [68%] male) undergoing attempted LBBP at a single institution were identified. Cases were grouped by lead delivery systems used: stylet-driven (n = 53) or lumenless (n = 30). Baseline characteristics and procedural findings were recorded and compared between the cohorts. Intermediate term follow-up data on ventricular lead parameters were also compared. RESULTS Baseline characteristics were similar between groups. Successful LBBP was achieved in 77% of patients, with similar success rates between groups (76% in stylet-driven, 80% in lumenless, p = 0.79), and rates of adjudicated LBB capture and other paced QRS parameters were also similar. Compared with the lumenless group, the stylet-driven group had significantly shorter procedure times (90 ± 4 vs. 112 ± 31 min, p = 0.004) and fluoroscopy times (10 ± 5 vs. 15 ± 6 min, p = 0.003). Ventricular lead parameters at follow-up were similar, and rates of procedural complications and need for lead revision were low in both groups. CONCLUSION Delivery systems for stylet-driven and for lumenless leads for LBBP have comparable acute success rates. Long-term follow-up of lead performance following use of the various delivery systems is warranted.
Collapse
Affiliation(s)
- Eric D Braunstein
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - Ruth D Kagan
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - David S Olshan
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - James K Gabriels
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - George Thomas
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - James E Ip
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - Steven M Markowitz
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - Bruce B Lerman
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - Christopher F Liu
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| | - Jim W Cheung
- Division of Cardiology, Weill Cornell Medicine, NewYork-Presbyterian Hospital, New York, New York, USA
| |
Collapse
|
30
|
A conversion CRT strategy combined with AVJA may be a perspective alternative for heart failure patients with persistent atrial fibrillation. Heart Fail Rev 2023; 28:367-377. [PMID: 36662339 DOI: 10.1007/s10741-023-10294-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/11/2023] [Indexed: 01/21/2023]
Abstract
Heart failure (HF) combined with persistent atrial fibrillation (AF) often coexist and may promote the pathological conditions of cardiac dysfunction, leading to poor prognosis. Cardiac resynchronization therapy (CRT) combined with atrioventricular junction ablation (AVJA) is a highly effective treatment for HF patients with underlying AF who either have failed or are not suitable for catheter ablation. The CRT-AVJA combination therapy can improve clinical outcomes in HF patients. Currently, clinical CRT methods are categorized into biventricular pacing (BVP) - based and conduction system pacing (CSP) - based methods. These procedures have inherent advantages and disadvantages, in addition to their considerable differences in clinical applications. This article aims to review the clinical progress of AVJA combined with different CRT strategies for treating HF patients with persistent AF and propose that conversion CRT strategy (BVP/CSP-CRT) combined with AVJA may be a perspective alternative. Meanwhile, we generalize that 7 categories of HF patients with persistent AF may need to consider the CRT-AVJA combination therapy.
Collapse
|
31
|
Left bundle branch pacing on mechanical synchrony and myocardial work in bradycardia patients. Int J Cardiovasc Imaging 2023; 39:369-378. [PMID: 36322262 DOI: 10.1007/s10554-022-02742-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/01/2022] [Indexed: 11/07/2022]
Abstract
Left bundle branch pacing (LBBP) has emerged as a novel physiological pacing method to produce narrower QRS duration, but whether it could restore mechanical synchrony and improve myocardial work still lacks sufficient evidence. Therefore, the goal of this study was to evaluate mechanical synchrony and myocardial work in LBBP. We collected 20 patients with LBBP due to symptomatic bradycardia and another 29 age-matched patients with right ventricular pacing (RVP). For LBBP patients, cardiac electro-mechanical synchrony and myocardial work were measured at baseline and 7 days after implantation and compared with the RVP patients. In the LBBP group, paced QRS duration and mechanical synchrony were not significantly different from baseline(all P > 0.05), but significantly smaller than that in the RVP group (all P<0.05). Meanwhile, global longitudinal strain (GLS) in LBBP was greater than that in the RVP group (17.7 ± 3.5% vs. 14.8 ± 3.1%, P < 0.05). Global myocardial work index and global constructive work were also better than that in the RVP group(all P<0.05). Global work efficiency was 91.9 ± 3.1%, which was greater when compared with RVP (P < 0.05). LBBP provides better cardiac electro-mechanical synchrony and more effective myocardial work than that in RVP, thus improving global heart function.
Collapse
|
32
|
Bressi E, Grieco D, Luermans J, Burri H, Vernooy K. Conduction system pacing for cardiac resynchronization therapy: State of the art, current controversies, and future perspectives. Front Physiol 2023; 14:1124195. [PMID: 36711020 PMCID: PMC9880410 DOI: 10.3389/fphys.2023.1124195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/03/2023] [Indexed: 01/15/2023] Open
Abstract
Biventricular pacing (BVP) is the established treatment to perform cardiac resynchronization therapy (CRT) in patients with heart failure (HF) and left bundle branch block (LBBB). However, BVP is an unnatural pacing modality still conditioned by the high percentage of non-responders and coronary sinus anatomy. Conduction system pacing (CSP)-His bundle pacing (HBP) and Left bundle branch area pacing (LBBAP)- upcomes as the physiological alternative to BVP in the quest for the optimal CRT. CSP showed promising results in terms of better electro-mechanical ventricular synchronization compared to BVP. However, only a few randomized control trials are currently available, and technical challenges, along with the lack of information on long-term clinical outcomes, limit the establishment of a primary role for CSP over conventional BVP in CRT candidates. This review provides a comprehensive literature revision of potential applications of CSP for CRT in diverse clinical scenarios, underlining the current controversies and prospects of this technique.
Collapse
Affiliation(s)
- Edoardo Bressi
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands,Department of Cardiovascular Sciences, Policlinico Casilino of Rome, Rome, Italy,*Correspondence: Edoardo Bressi,
| | - Domenico Grieco
- Department of Cardiovascular Sciences, Policlinico Casilino of Rome, Rome, Italy
| | - Justin Luermans
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
| | - Haran Burri
- Department of Cardiology, University Hospital of Geneva, Geneva, Switzerland
| | - Kevin Vernooy
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
| |
Collapse
|
33
|
Curila K, Jurak P, Prinzen F, Jastrzebski M, Waldauf P, Halamek J, Tothova M, Znojilova L, Smisek R, Kach J, Poviser L, Linkova H, Plesinger F, Moskal P, Viscor I, Vondra V, Leinveber P, Osmancik P. Bipolar anodal septal pacing with direct LBB capture preserves physiological ventricular activation better than unipolar left bundle branch pacing. Front Cardiovasc Med 2023; 10:1140988. [PMID: 37034324 PMCID: PMC10073552 DOI: 10.3389/fcvm.2023.1140988] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/23/2023] [Indexed: 04/11/2023] Open
Abstract
Background Left bundle branch pacing (LBBP) produces delayed, unphysiological activation of the right ventricle. Using ultra-high-frequency electrocardiography (UHF-ECG), we explored how bipolar anodal septal pacing with direct LBB capture (aLBBP) affects the resultant ventricular depolarization pattern. Methods In patients with bradycardia, His bundle pacing (HBP), unipolar nonselective LBBP (nsLBBP), aLBBP, and right ventricular septal pacing (RVSP) were performed. Timing of local ventricular activation, in leads V1-V8, was displayed using UHF-ECG, and electrical dyssynchrony (e-DYS) was calculated as the difference between the first and last activation. Durations of local depolarizations were determined as the width of the UHF-QRS complex at 50% of its amplitude. Results aLBBP was feasible in 63 of 75 consecutive patients with successful nsLBBP. aLBBP significantly improved ventricular dyssynchrony (mean -9 ms; 95% CI (-12;-6) vs. -24 ms (-27;-21), ), p < 0.001) and shortened local depolarization durations in V1-V4 (mean differences -7 ms to -5 ms (-11;-1), p < 0.05) compared to nsLBBP. aLBBP resulted in e-DYS -9 ms (-12; -6) vs. e-DYS 10 ms (7;14), p < 0.001 during HBP. Local depolarization durations in V1-V2 during aLBBP were longer than HBP (differences 5-9 ms (1;14), p < 0.05, with local depolarization duration in V1 during aLBBP being the same as during RVSP (difference 2 ms (-2;6), p = 0.52). Conclusion Although aLBBP improved ventricular synchrony and depolarization duration of the septum and RV compared to unipolar nsLBBP, the resultant ventricular depolarization was still less physiological than during HBP.
Collapse
Affiliation(s)
- Karol Curila
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
- Correspondence: Karol Curila
| | - Pavel Jurak
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Frits Prinzen
- Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, Netherlands
| | - Marek Jastrzebski
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Petr Waldauf
- Department of Anesthesia and Intensive Care, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Josef Halamek
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Marketa Tothova
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Lucie Znojilova
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Radovan Smisek
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
- Faculty of Electrical Engineering and Communication, Department of Biomedical Engineering, Brno University of Technology, Brno, Czech Republic
| | - Jakub Kach
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Lukas Poviser
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Hana Linkova
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Filip Plesinger
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Pawel Moskal
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Medical College, Krakow, Poland
| | - Ivo Viscor
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Vlastimil Vondra
- Institute of Scientific Instruments, The Czech Academy of Sciences, Brno, Czech Republic
| | - Pavel Leinveber
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Pavel Osmancik
- Cardiocenter, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| |
Collapse
|
34
|
Shen J, Jiang L, Wu H, Cai X, Zhuo S, Pan L. A Continuous Pacing and Recording Technique for Differentiating Left Bundle Branch Pacing From Left Ventricular Septal Pacing: Electrophysiologic Evidence From an Intrapatient-Controlled Study. Can J Cardiol 2023; 39:1-10. [PMID: 36113707 DOI: 10.1016/j.cjca.2022.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/29/2022] [Accepted: 09/08/2022] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Left bundle branch pacing (LBBP) is a promising approach for achieving near-physiologic pacing. However, differentiating LBBP from left ventricular septal endocardial pacing (LVS(e)P) remains a challenge. This study aimed to establish a simple and effective method for differentiating LBBP from LVS(e)P and to evaluate their electrophysiologic characteristics. METHODS LBBP, using continuous uninterrupted pacing and real-time monitoring of electrocardiograms along with intracardiac electrograms, was performed in 97 consecutive patients. We evaluated the electrophysiologic characteristics observed during LBBP using 6 modalities: right ventricular septal pacing (RVSP), intraventricular septal pacing (IVSP 1 and 2), LVS(e)P, nonselective LBBP (NSLBBP), and selective LBBP (SLBBP). RESULTS Of the 97 patients, 87 (89.7%) met the criteria (abrupt change in paced QRS morphology with a transition from Qr to QR/qR in lead V1 and shortening of stimulus to V6 R-wave peak time [Stim-V6RWPT] of ≥ 10 ms with constant output while rather than after lead screwing) for nonselective left bundle branch (LBB) capture. Selective LBB capture was observed in 82 patients (84.5%). The Stim-V6RWPT of NSLBBP and SLBBP were significantly shorter than LVS(e)P (respectively, 67.1 ± 8.7 ms, 67.0 ± 9.3 ms, and 82.1 ± 10.9 ms). Stim-QRSend was the narrowest in IVSP2 (136.6 ± 15.2 ms) instead of NSLBBP (140.0 ± 17.1 ms). CONCLUSIONS The uninterrupted pacing technique for differentiating LBBP from LVS(e)P in the same group of patients is feasible. Electrophysiologic evidence from our intrapatient-controlled study shows that LBBP and LVS(e)P differ in ventricular electrical synchronization.
Collapse
Affiliation(s)
- Jiabo Shen
- Department of Cardiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
| | - Longfu Jiang
- Department of Cardiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China.
| | - Hao Wu
- Department of Cardiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
| | - Xiaojie Cai
- Department of Cardiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
| | - Shanshan Zhuo
- Department of Cardiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
| | - Lifang Pan
- Department of Global Health, Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
| |
Collapse
|
35
|
Chen Z, Zhou X, Ma X, Chen K. Recruitment of the cardiac conduction system for optimal resynchronization therapy in failing heart. Front Physiol 2022; 13:1045740. [PMID: 36589433 PMCID: PMC9798297 DOI: 10.3389/fphys.2022.1045740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Heart failure (HF) is a leading health burden around the world. Although pharmacological development has dramatically advanced medication therapy in the field, hemodynamic disorders or mechanical desynchrony deteriorated by intra or interventricular conduction abnormalities remains a critical target beyond the scope of pharmacotherapy. In the past 2 decades, nonpharmacologic treatment for heart failure, such as cardiac resynchronization therapy (CRT) via biventricular pacing (BVP), has been playing an important role in improving the prognosis of heart failure. However, the response rate of BVP-CRT is variable, leaving one-third of patients not benefiting from the therapy as expected. Considering the non-physiological activation pattern of BVP-CRT, more efforts have been made to optimize resynchronization. The most extensively investigated approach is by stimulating the native conduction system, e.g., His-Purkinje conduction system pacing (CSP), including His bundle pacing (HBP) and left bundle branch area pacing (LBBAP). These emerging CRT approaches provide an alternative to traditional BVP-CRT, with multiple proof-of-concept studies indicating the safety and efficacy of its utilization in dyssynchronous heart failure. In this review, we summarize the mechanisms of dyssynchronous HF mediated by conduction disturbance, the rationale and acute effect of CSP for CRT, the recent advancement in clinical research, and possible future directions of CSP.
Collapse
Affiliation(s)
- Zhongli Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | | | - Xuan Ma
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China,*Correspondence: Keping Chen,
| |
Collapse
|
36
|
Mirolo A, Chaumont C, Auquier N, Savoure A, Godin B, Vandevelde F, Eltchaninoff H, Anselme F. Left bundle branch area pacing in patients with baseline narrow, left, or right bundle branch block QRS patterns: insights into electrocardiographic and echocardiographic features. Europace 2022; 25:526-535. [PMID: 36480437 PMCID: PMC9935006 DOI: 10.1093/europace/euac223] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 11/11/2022] [Indexed: 12/13/2022] Open
Abstract
AIMS Left bundle branch area pacing (LBBAP) is a recent technique aiming at preservation of physiological ventricular electrical activation. Our goal was to assess mechanical synchrony parameters in relation to electrocardiographic features during LBBAP performed in routine practice. METHODS AND RESULTS From June 2020 to August 2021, all patients of our institution with permanent pacemaker implantation indication were eligible for LBBAP. A 'qR' pattern in V1 and a delay from pacing spike to the peak of the R-wave in V6 < 80 ms defined a successful LBBAP. Electrocardiogram and echocardiography were performed during spontaneous rhythm and LBBAP: left ventricular mechanical synchrony (LVMS) parameters using 2D Speckle tracking and interventricular mechanical delay (IVMD) were collected. LBBAP was attempted with success in 134/163 patients (82.2%). During LBBAP, the mean QRS width was 104 ± 12 ms. In patients with left bundle branch block (n = 47), LBBAP provided a significant decrease of QRS width from 139 ± 16 to 105 ± 12 ms (P < 0.001) with reduction of LVMS (53 ± 21 vs. 90 ± 46 ms, P = 0.009), and IVMD (14 ± 13 vs. 49 ± 18 ms, P < 0.001). In patients with right bundle branch block (n = 38), LBBAP led to a significant decrease of QRS width from 134 ± 14 to 106 ± 13 ms (P < 0.001) with no effect on LVMS and a reduction of IVMD (17 ± 14 vs. 50 ± 16 ms, P < 0.001). CONCLUSION LBBAP in routine practice preserved intra-ventricular mechanical synchrony in patients with narrow and RBBB QRS and improved asynchrony parameters in patients with LBBB.
Collapse
Affiliation(s)
- Adrian Mirolo
- Department of cardiology, Rouen University Hospital, CHU—Hôpitaux de Rouen, 1 rue de Germont, 76031 Rouen, France
| | - Corentin Chaumont
- Department of cardiology, Rouen University Hospital, CHU—Hôpitaux de Rouen, 1 rue de Germont, 76031 Rouen, France
| | - Nathanael Auquier
- Department of cardiology, Jacques Monod Hospital, 29 Av. Pierre Mendès France, 76290 Montivilliers, France
| | - Arnaud Savoure
- Department of cardiology, Rouen University Hospital, CHU—Hôpitaux de Rouen, 1 rue de Germont, 76031 Rouen, France
| | - Benedicte Godin
- Department of cardiology, Rouen University Hospital, CHU—Hôpitaux de Rouen, 1 rue de Germont, 76031 Rouen, France
| | - Florence Vandevelde
- Department of cardiology, Jacques Monod Hospital, 29 Av. Pierre Mendès France, 76290 Montivilliers, France
| | - Helene Eltchaninoff
- Department of cardiology, Rouen University Hospital, CHU—Hôpitaux de Rouen, 1 rue de Germont, 76031 Rouen, France
| | - Frederic Anselme
- Corresponding author. Tel: +33 2 32 88 81 11; Fax: +33 2 32 88 81 23. E-mail address:
| |
Collapse
|
37
|
Qian Z, Xue S, Zou F, Qin C, Wang Y, Zhang X, Qiu Y, Wu H, Hou X, Zou J. New criterion to determine left bundle branch capture on the basis of individualized His bundle or right ventricular septal pacing. Heart Rhythm 2022; 19:1984-1992. [PMID: 35932987 DOI: 10.1016/j.hrthm.2022.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 07/17/2022] [Accepted: 07/21/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Left bundle branch pacing (LBBP) is an emerging physiological pacing modality. How to differentiate LBBP from left ventricular septal pacing (LVSP) remains challenging. OBJECTIVE We aimed to develop a new personalized intraoperative criterion to confirm left bundle branch (LBB) capture in patients with or without heart failure (HF). METHODS Patients were enrolled if 12-lead surface electrocardiograms of LBBP, LVSP, temporary His bundle pacing (HBP), and right ventricular septal pacing (RVSP) were recorded during the procedure, with the leads placed in the basal midseptal region. Left ventricular activation time (LVAT) was measured during different pacing modalities. ΔLVAT1 was defined as the difference in LVAT between HBP and LBBP/LVSP. ΔLVAT2 was estimated by the difference in LVAT between RVSP and LBBP/LVSP. ΔLVAT1% and ΔLVAT2% were calculated as the percent reduction of ΔLVAT1 and ΔLVAT2, respectively. RESULTS A total of 105 consecutive patients were included, of whom 80 (76.2%) had normal cardiac function (65 LBBP and 15 LVSP) and 25 had HF. Patients with LBBP showed significantly shorter LVAT than did those with LVSP. In patients with normal cardiac function, a cutoff value of ΔLVAT1 > 12.5 ms showed 73.9% sensitivity and 93.3% specificity to confirm LBB capture. In patients with HF, a cutoff value of ΔLVAT1% > 9.8% exhibited great accuracy for LBB capture (sensitivity 92.0%; specificity 92.3%). The optimal value of ΔLVAT2% for differentiating LBBP from LVSP was 21.2%. CONCLUSION Temporary HBP and RVSP can serve as references to confirm LBB capture in an individualized fashion in patients with or without HF.
Collapse
Affiliation(s)
- Zhiyong Qian
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Siyuan Xue
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Fengwei Zou
- Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Bronx, New York
| | - Chaotong Qin
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yao Wang
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xinwei Zhang
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yuanhao Qiu
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Hongping Wu
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xiaofeng Hou
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Jiangang Zou
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China.
| |
Collapse
|
38
|
Elliott MK, Vergara P, Wijesuriya N, Mehta VS, Bosco P, Jacon P, Lee M, Taloni S, Niederer S, Alison J, Piot O, Roberts PR, Paisey J, Defaye P, Shute A, Rinaldi CA. Feasibility of leadless left ventricular septal pacing with the WiSE-CRT system to target the left bundle branch area: A porcine model and multicenter patient experience. Heart Rhythm 2022; 19:1974-1983. [PMID: 35940464 DOI: 10.1016/j.hrthm.2022.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 07/01/2022] [Accepted: 07/16/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND The WiSE-CRT system delivers leadless endocardial left ventricular (LV) pacing to achieve cardiac resynchronization therapy. The electrode is conventionally placed on the lateral wall, but implanting on the LV septum may have advantages, including capture of the left bundle branch, and improved battery longevity owing to reduced distance from the transmitter. OBJECTIVE The purpose of this study was to assess the feasibility of leadless LV septal pacing via the WiSE-CRT system. METHODS Two pigs underwent electrode implantation on the LV septum with subsequent anatomical and histological examination. Eight patients underwent implantation of the WiSE-CRT system with deployment of the electrode on the LV septum via an interatrial transseptal approach. RESULTS Deployment of the electrode on the LV septum was successful in both animals. Histological examination demonstrated electrode tines in close proximity to Purkinje tissue. WiSE-CRT implantation with an LV septal electrode was successful in all patients. Biventricular capture was confirmed, with a significant reduction in QRS duration (187.1 ± 33.8 ms vs 149.5 ± 15.7 ms; P = .009). Temporary LV pacing achieved further QRS reduction (139.8 ± 12.4 ms), and in 4 patients the peak LV activation time in lead V5/V6 was <90 ms, suggesting left bundle branch capture. At early follow-up, the median LV pacing percentage was 98.5% and 5 patients (62.5%) improved symptomatically. The transmitter-to-electrode distance was lower than the distance to the lateral wall during acoustic window screening (8.8 ± 1.6 cm vs 11.9 ± 1.5 cm; P = .002). CONCLUSION Leadless LV septal pacing with the WiSE-CRT system to target the left bundle branch appears feasible. Further study is required to assess the efficacy and safety of this technique.
Collapse
Affiliation(s)
- Mark K Elliott
- Department of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom; Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.
| | - Pasquale Vergara
- Arrhythmia Unit and Electrophysiology Laboratories, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nadeev Wijesuriya
- Department of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom; Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Vishal S Mehta
- Department of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom; Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Paolo Bosco
- Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Peggy Jacon
- Arrhythmias Unit, Grenoble Alpes University Hospital, Grenobles, France
| | | | | | - Steven Niederer
- Department of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | | | | | - Paul R Roberts
- Department of Cardiology, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom
| | - John Paisey
- Department of Cardiology, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom
| | - Pascal Defaye
- Arrhythmias Unit, Grenoble Alpes University Hospital, Grenobles, France
| | | | - Christopher A Rinaldi
- Department of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom; Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| |
Collapse
|
39
|
Fu Y, Liu P, Jin L, Li Y, Zhang Y, Qin X, Zheng Q. Left bundle branch area pacing: A promising modality for cardiac resynchronization therapy. Front Cardiovasc Med 2022; 9:901046. [PMID: 36465440 PMCID: PMC9715961 DOI: 10.3389/fcvm.2022.901046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 10/31/2022] [Indexed: 12/19/2023] Open
Abstract
Cardiac resynchronization therapy (CRT) is recognized as the first-line management for patients with heart failure (HF) and conduction disorders. As a conventional mode for delivering CRT, biventricular pacing (BVP) improves cardiac function and reduces HF hospitalizations and mortality, but there are still limitations given the high incidence of a lack of response rates. Alternative pacing methods are needed either for primary or rescue therapy. In recent years, conduction system pacing (CSP) has emerged as a more physiological pacing modality for simultaneous stimulation of the ventricles, including His bundle pacing (HBP) and left bundle branch pacing (LBBP). CSP activates the His-Purkinje system, allowing normal ventricular stimulation. However, HBP is technically challenging with a relatively low success rate, high pacing threshold, and failure to correct distal conduction abnormalities. Therefore, LBBP stands out as a novel ideal physiological pacing modality for CRT. Several non-randomized studies compared the feasibility and safety of LBBP with BVP and concluded that LBBP is superior to BVP for delivering CRT with a narrower QRS and greater improvements in left ventricular ejection fraction (LVEF) and New York Heart Association (NYHA) functional class. Concurrently, some studies showed lower and stable pacing thresholds and greater improvement of B-type natriuretic peptide (BNP) levels, as well as better mechanical synchronization and efficiency. LBBP ensures better ventricular electromechanical resynchronization than BVP. In this review, we discuss current knowledge of LBBP, compare LBBP with BVP, and explore the potential of LBBP to serve as an alternative primary therapy to realize cardiac resynchronization.
Collapse
Affiliation(s)
- Yuping Fu
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Peng Liu
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Lingyan Jin
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Yingqi Li
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Yudi Zhang
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xinghua Qin
- School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Qiangsun Zheng
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| |
Collapse
|
40
|
O’Connor M, Riad O, Shi R, Hunnybun D, Li W, Jarman JWE, Foran J, Rinaldi CA, Markides V, Gatzoulis MA, Wong T. Left bundle branch area pacing in congenital heart disease. Europace 2022; 25:561-570. [PMID: 36358001 PMCID: PMC9935007 DOI: 10.1093/europace/euac175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/08/2022] [Indexed: 11/12/2022] Open
Abstract
AIMS Left bundle branch area pacing (LBBAP) has been shown to be effective and safe. Limited data are available on LBBAP in the congenital heart disease (CHD) population. This study aims to describe the feasibility and safety of LBBAP in CHD patients compared with non-CHD patients. METHODS AND RESULTS This is a single-centre, non-randomized observational study recruiting consecutive patients with bradycardia indication. Demographic data, ECGs, imaging, and procedural data including lead parameters were recorded. A total of 39 patients were included: CHD group (n = 13) and non-CHD group (n = 26). Congenital heart disease patients were younger (55 ± 14.5 years vs. 73.2 ± 13.1, P < 0.001). Acute success was achieved in all CHD patients and 96% (25/26) of non-CHD patients. No complications were encountered in either group. The procedural time for CHD patients was comparable (96.4 ± 54 vs. 82.1 ± 37.9 min, P = 0.356). Sheath reshaping was required in 7 of 13 CHD patients but only in 1 of 26 non-CHD patients, reflecting the complex and distorted anatomy of the patients in this group. Lead parameters were similar in both groups; R wave (11 ± 7 mV vs. 11.5 ± 7.5, P = 0.881) and pacing threshold (0.6 ± 0.3 V vs. 0.7 ± 0.3, P = 0.392). Baseline QRS duration was longer in the CHD group (150 ± 28.2 vs. 118.6 ± 26.6 ms, P = 0.002). Despite a numerically greater reduction in QRS and a similar left ventricular activation time (65.9 ± 6.2 vs. 67 ± 16.8 ms, P = 0.840), the QRS remained longer in the CHD group (135.5 ± 22.4 vs. 106.9 ± 24.7 ms, P = 0.005). CONCLUSION Left bundle branch area pacing is feasible and safe in CHD patients as compared to that in non-CHD patients. Procedural and fluoroscopy times did not differ between both groups. Lead parameters were satisfactory and stable over a short-term follow-up.
Collapse
Affiliation(s)
| | | | - Rui Shi
- Heart Rhythm Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London SW3 6NP, UK
| | - Dan Hunnybun
- Heart Rhythm Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London SW3 6NP, UK
| | - Wei Li
- Heart Rhythm Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London SW3 6NP, UK,Adult Congenital Heart Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, Sydney Street, London SW3 6NP, UK
| | - Julian W E Jarman
- Heart Rhythm Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London SW3 6NP, UK,Adult Congenital Heart Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, Sydney Street, London SW3 6NP, UK
| | - John Foran
- Heart Rhythm Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London SW3 6NP, UK
| | | | - Vias Markides
- Heart Rhythm Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London SW3 6NP, UK
| | - Michael A Gatzoulis
- Adult Congenital Heart Centre, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, Sydney Street, London SW3 6NP, UK,National Heart & Lung Institute, Imperial College, London SW3 6LY, UK
| | - Tom Wong
- Corresponding author. Tel: +44 20 7352 8121; fax: +44 20 7351 8699. E-mail address:
| |
Collapse
|
41
|
Zhang Y, Jia Y, Liu J, Du R. A systematic review and Bayesian network meta-analysis comparing left bundle branch pacing, his bundle branch pacing, and right ventricular pacing for atrioventricular block. Front Cardiovasc Med 2022; 9:939850. [PMID: 36386361 PMCID: PMC9640391 DOI: 10.3389/fcvm.2022.939850] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/03/2022] [Indexed: 07/22/2023] Open
Abstract
Background Although right ventricular pacing (RVP) is recommended by most of the guidelines for atrioventricular block, it can cause electrical and mechanical desynchrony, impair left ventricular function, and increase the risk of atrial fibrillation. Recently, the His-Purkinje system pacing, including His bundle pacing (HBP) and left bundle branch pacing (LBBP), has emerged as a physiological pacing modality. However, few studies have compared their efficacy and safety in atrioventricular block (AVB). Methods and results The PubMed, Web of Science, Cochrane Library, and ScienceDirect databases were searched for observational studies and randomized trials of patients with atrioventricular block requiring permanent pacing, from database inception until 10 January 2022. The primary outcomes were complications and heart failure hospitalization. The secondary outcomes included changes in left ventricular ejection fraction (LVEF) and left ventricular end-diastolic diameter (LVEDD), pacing parameters, procedure duration, and success rate. After extracting the data at baseline and the longest follow-up duration available, a pairwise meta-analysis and a Bayesian random-effects network meta-analysis were performed. Odds ratios (ORs) with 95% confidence intervals (CIs) or 95% credible intervals (CrIs) were calculated for dichotomous outcomes, whereas mean differences (MDs) with 95% CIs or 95% CrIs were calculated for continuous outcomes. Seven studies and 1,069 patients were included. Overall, 43.4% underwent LBBP, 33.5% HBP, and 23.1% RVP. Compared with RVP, LBBP and HBP were associated with a shorter paced QRS duration and a more preserved LVEF. HBP significantly increased the pacing threshold and reduced the R-wave amplitude. There was no difference in the risk of complications or the implant success rate. The pacing threshold remained stable during follow-up for the three pacing modalities. The pacing impedance was significantly reduced in HBP, while a numerical but non-significant pacing impedance decrease was observed in both LBBP and RVP. LBBP was associated with an increased R-wave amplitude during follow-up. Conclusion In this systematic review and network meta-analysis, HBP and LBBP were superior to RVP in paced QRS duration and preservation of LVEF for patients with atrioventricular block. LBBP was associated with a lower pacing threshold and a greater R-wave amplitude than HBP. However, the stability of the pacing output of LBBP may be a concern. Further investigation of the long-term efficacy in left ventricular function and the risk of heart failure hospitalization is needed. Systematic review registration [https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=315046], identifier [CRD42022315046].
Collapse
Affiliation(s)
- Yue Zhang
- Graduate School of Hebei Medical University, Shijiazhuang, China
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, China
| | - Yuan Jia
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, China
| | - Jia Liu
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, China
| | - Rongpin Du
- Department of Cardiology, Hebei General Hospital, Shijiazhuang, China
| |
Collapse
|
42
|
Zhu K, Li L, Liu J, Chang D, Li Q. Criteria for differentiating left bundle branch pacing and left ventricular septal pacing: A systematic review. Front Cardiovasc Med 2022; 9:1006966. [PMID: 36247445 PMCID: PMC9562849 DOI: 10.3389/fcvm.2022.1006966] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/13/2022] [Indexed: 12/02/2022] Open
Abstract
Background As a novel physiological pacing technique, left bundle branch pacing (LBBP) can preserve the left ventricular (LV) electrical and mechanical synchronization by directly capturing left bundle branch (LBB). Approximately 60-90% of LBBP were confirmed to have captured LBB during implantation, implying that up to one-third of LBBP is actually left ventricular septal pacing (LVSP). LBB capture is critical for distinguishing LBBP from LVSP. Methods and results A total of 15 articles were included in the analysis by searching PubMed, EMBASE, Web of Science, and the Cochrane Library database till August 2022. Comparisons of paced QRS duration between LVSP and LBBP have not been uniformly concluded, but the stimulus artifact to LV activation time in lead V5 or V6 (Stim-LVAT) was shorter in LBBP than LVSP in all studies. Stim-LVAT was used to determine LBB capture with a sensitivity of 76-95.2% and specificity of 78.8-100%, which varied across patient populations. Conclusion The output-dependent QRS transition from non-selective LBBP to selective LBBP or LVSP is direct evidence of LBB capture. LBB potential combined with short Stim-LVAT can predict LBB capture better. Personalized criteria rather than a fixed value of Stim-LVAT are necessary to confirm LBB capture in different populations, especially in patients with LBB block or heart failure.
Collapse
Affiliation(s)
- Kailun Zhu
- Department of Cardiology, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- School of Medicine, Xiamen University, Xiamen, China
| | - Linlin Li
- Department of Cardiology, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Jianghai Liu
- Department of Cardiology, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Dong Chang
- Department of Cardiology, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Qiang Li
- Department of Cardiology, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| |
Collapse
|
43
|
(Conduction system pacing, classification, operation techniques, and methods used to confirm ventricular capture type in pacemaker implantation). COR ET VASA 2022. [DOI: 10.33678/cor.2022.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
44
|
Mizner J, Jurak P, Linkova H, Smisek R, Curila K. Ventricular Dyssynchrony and Pacing-induced Cardiomyopathy in Patients with Pacemakers, the Utility of Ultra-high-frequency ECG and Other Dyssynchrony Assessment Tools. Arrhythm Electrophysiol Rev 2022; 11:e17. [PMID: 35990106 PMCID: PMC9376832 DOI: 10.15420/aer.2022.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 04/09/2022] [Indexed: 11/23/2022] Open
Abstract
The majority of patients tolerate right ventricular pacing well; however, some patients manifest signs of heart failure after pacemaker implantation and develop pacing-induced cardiomyopathy. This is a consequence of non-physiological ventricular activation bypassing the conduction system. Ventricular dyssynchrony was identified as one of the main factors responsible for pacing-induced cardiomyopathy development. Currently, methods that would allow rapid and reliable ventricular dyssynchrony assessment, ideally during the implant procedure, are lacking. Paced QRS duration is an imperfect marker of dyssynchrony, and methods based on body surface mapping, electrocardiographic imaging or echocardiography are laborious and time-consuming, and can be difficult to use during the implantation procedure. However, the ventricular activation sequence can be readily displayed from the chest leads using an ultra-high-frequency ECG. It can be performed during the implantation procedure to visualise ventricular depolarisation and resultant ventricular dyssynchrony during pacing. This information can assist the electrophysiologist in selecting a pacing location that avoids dyssynchronous ventricular activation.
Collapse
Affiliation(s)
- Jan Mizner
- Department of Cardiology, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Pavel Jurak
- Institute of Scientific Instruments of the Czech Academy of Sciences, Brno, Czech Republic
| | - Hana Linkova
- Department of Cardiology, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Radovan Smisek
- Institute of Scientific Instruments of the Czech Academy of Sciences, Brno, Czech Republic
| | - Karol Curila
- Department of Cardiology, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| |
Collapse
|
45
|
Ozpak E, Demolder A, Kizilkilic S, Calle S, Timmermans F, De Pooter J. An Electrocardiographic Characterization of Left Bundle Branch Area Pacing-Induced Right Ventricular Activation Delay: A Comparison With Native Right Bundle Branch Block. Front Cardiovasc Med 2022; 9:885201. [PMID: 35757323 PMCID: PMC9218419 DOI: 10.3389/fcvm.2022.885201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 05/17/2022] [Indexed: 11/13/2022] Open
Abstract
Background Left bundle branch area pacing (LBBAP) induces delayed RV activation and is thought to be harmless, since the electrocardiographic signature is reminiscent to native RBBB. However, to what extent the delayed RV activation during LBBAP truly resembles that of native RBBB remains unexplored. Methods This study included patients with incomplete RBBB (iRBBB), complete RBBB (cRBBB) and patients who underwent LBBAP. Global and right ventricular activation times were estimated by QRS duration and R wave peak time in lead V1 (V1RWPT) respectively. Delayed RV activation was further characterized by duration, amplitude and area of the terminal R wave in V1. Results In patients with LBBAP (n = 86), QRS duration [120 ms (116, 132)] was longer compared to iRBBB patients (n = 422): 104 ms (98, 110), p < 0.001, but shorter compared to cRBBB (n = 223): 138 ms (130, 152), p < 0.001. V1RWPT during LBBAP [84 ms (72, 92)] was longer compared to iRBBB [74 ms (68, 80), p < 0.001], but shorter than cRBBB [96 ms (86, 108), p < 0.001]. LBBAP resulted in V1 R' durations [42 ms (28, 55)] comparable to iRBBB [42 ms (35, 49), p = 0.49] but shorter than in cRBBB [81 ms (68, 91), p < 0.001]. During LBBAP, the amplitude and area of the V1 R' wave were more comparable with iRBBB than cRBBB. V1RWPT during LBBAP was determined by baseline conduction disease, but not by LBBAP capture type. Conclusion LBBAP-induced delayed RV activation electrocardiographically most closely mirrors the delayed RV activation as seen with incomplete rather than complete RBBB.
Collapse
Affiliation(s)
| | | | | | | | | | - Jan De Pooter
- Heart Center, Ghent University Hospital, Ghent, Belgium
| |
Collapse
|
46
|
Rijks J, Luermans J, Heckman L, van Stipdonk AMW, Prinzen F, Lumens J, Vernooy K. Physiology of Left Ventricular Septal Pacing and Left Bundle Branch Pacing. Card Electrophysiol Clin 2022; 14:181-189. [PMID: 35715076 DOI: 10.1016/j.ccep.2021.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Following the recognition of the adverse effects of right ventricular pacing, alternative permanent pacing strategies aiming to maintain a synchronous ventricular contraction have been sought. The quest for the optimal pacing site has recently led to several promising and rapidly emerging new pacing strategies, such as left ventricular septal pacing and left bundle branch pacing. In both animal and human studies, these pacing strategies seem to maintain electrical and mechanical activation of the left ventricle to a (near)physiologic level. However, more studies on the long-term effects of both strategies are needed.
Collapse
Affiliation(s)
- Jesse Rijks
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre (MUMC+), the Netherlands
| | - Justin Luermans
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre (MUMC+), the Netherlands; Department of Cardiology, Radboud University Medical Centre (RadboudUMC), Nijmegen, the Netherlands
| | - Luuk Heckman
- Department of Physiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, the Netherlands
| | - Antonius M W van Stipdonk
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre (MUMC+), the Netherlands
| | - Frits Prinzen
- Department of Physiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, the Netherlands
| | - Joost Lumens
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, the Netherlands
| | - Kevin Vernooy
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre (MUMC+), the Netherlands; Department of Cardiology, Radboud University Medical Centre (RadboudUMC), Nijmegen, the Netherlands.
| |
Collapse
|
47
|
Abstract
Left bundle branch pacing (LBBP) provides electrical and mechanical synchrony at low and stable pacing output and effectively corrects distal conduction system disease. The criteria for differentiating LBBP from LV septal pacing has not been validated in large trials. There are several electrocardiography-based and intracardiac electrogram-based criteria to confirm LBB capture. In this section, the authors review these criteria and their overall accuracy.
Collapse
|
48
|
Byeon K, Kim HR, Park SJ, Park YJ, Choi JH, Kim JY, Park KM, On YK, Kim JS. Initial Experience with Left Bundle Branch Area Pacing with Conventional Stylet-Driven Extendable Screw-In Leads and New Pre-Shaped Delivery Sheaths. J Clin Med 2022; 11:jcm11092483. [PMID: 35566608 PMCID: PMC9104478 DOI: 10.3390/jcm11092483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 12/04/2022] Open
Abstract
Until recently, left bundle branch area pacing (LBBAp) has mostly been performed using lumen-less fixed screw leads. There are limited data on LBBAp with conventional style-driven extendable screw-in (SDES) leads, particularly data performed by operators with no previous experience with LBBAp procedures. In total, 42 consecutive patients undergoing LBBAp using SDES leads and newly designed delivery sheaths (LBBAp group) were compared with those treated with conventional right ventricular pacing (RVp) for atrioventricular block (RVp group, n = 84) using propensity score matching (1:2 ratio). The LBBAp was successful in 83% (35/42) of patients, with satisfactory pacing thresholds (0.8 ± 0.2 V at 0.4 ms). In the LBBAp group, the mean paced-QRS duration obtained during RV apical pacing (173 ± 18 ms) was significantly reduced by LBBAp (116 ± 14 ms, p < 0.001). Compared with the RVp group, the LBBAp group showed more physiological pacing, suggested by a much narrower paced-QRS duration (116 ± 14 vs. 151 ± 21 ms, p < 0.001). The pacing threshold was comparable in both groups. The LBBAp group revealed stable pacing thresholds for 6.8 ± 4.8 months post-implant and no serious complications including lead dislodgement or septal perforation. The novel approach of LBBAp using SDES leads and the new dedicated pre-shaped delivery sheaths was effectively and safely performed, even by inexperienced operators with LBBAp procedures.
Collapse
Affiliation(s)
- Kyeongmin Byeon
- Division of Cardiology, Department of Internal Medicine, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University College of Medicine, Gwangmyeong 14353, Korea;
| | - Hye Ree Kim
- Division of Cardiology, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju 52727, Korea;
| | - Seung-Jung Park
- Division of Cardiology, Department of Internal Medicine, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (J.-H.C.); (J.Y.K.); (K.-M.P.); (Y.K.O.); (J.S.K.)
- Correspondence: ; Tel.: +82-2-3410-7145; Fax: +82-2-3410-3849
| | - Young Jun Park
- Division of Cardiology, Department of Internal Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju 26426, Korea;
| | - Ji-Hoon Choi
- Division of Cardiology, Department of Internal Medicine, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (J.-H.C.); (J.Y.K.); (K.-M.P.); (Y.K.O.); (J.S.K.)
| | - Ju Youn Kim
- Division of Cardiology, Department of Internal Medicine, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (J.-H.C.); (J.Y.K.); (K.-M.P.); (Y.K.O.); (J.S.K.)
| | - Kyoung-Min Park
- Division of Cardiology, Department of Internal Medicine, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (J.-H.C.); (J.Y.K.); (K.-M.P.); (Y.K.O.); (J.S.K.)
| | - Young Keun On
- Division of Cardiology, Department of Internal Medicine, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (J.-H.C.); (J.Y.K.); (K.-M.P.); (Y.K.O.); (J.S.K.)
| | - June Soo Kim
- Division of Cardiology, Department of Internal Medicine, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (J.-H.C.); (J.Y.K.); (K.-M.P.); (Y.K.O.); (J.S.K.)
| |
Collapse
|
49
|
Left bundle branch area pacing: ready for prime time? Neth Heart J 2022; 30:247-248. [PMID: 35380416 PMCID: PMC9043084 DOI: 10.1007/s12471-022-01681-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2022] [Indexed: 11/15/2022] Open
|
50
|
Zhang S, Shan Q. Discussion of LBBP synchronization effects in HF patients with LBBB and comparison with BiV-CRT. Heart Fail Rev 2022; 27:2181-2186. [DOI: 10.1007/s10741-021-10213-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/30/2021] [Indexed: 11/24/2022]
|