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Vô C, Bartoletti S, Benali K, Gonzalez CM, Mondésert B, Gagnon MH, Dyrda K, Fourier A, Khairy P. Robotic magnetic-guided catheter ablation in patients with congenital heart disease: a systematic review and pooled analysis. Expert Rev Cardiovasc Ther 2023; 21:227-236. [PMID: 36852632 DOI: 10.1080/14779072.2023.2184798] [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] [Indexed: 03/01/2023]
Abstract
BACKGROUND Robotic magnetic navigation (RMN) has emerged as a potential solution to overcome challenges associated with catheter ablation of arrhythmias in patients with congenital heart disease (CHD). OBJECTIVES To assess safety and efficacy of RMNguided catheter ablation in patients with CHD. DESIGN AND METHODS A systematic review and pooled analysis was conducted on patients with CHD who underwent RMNguided catheter ablation. Random effects models were used to generate pooled estimates with the inverse variance method used for weighting studies. RESULTS Twentyfour nonoverlapping records included 167 patients with CHD, mean age 36.5 years, 44.6% female. Type of CHD was simple in 27 (16.2%), moderate in 32 (19.2%), and complex in 106 (63.5%). A total of 202 procedures targeted 260 arrhythmias, the most common being macroreentrant atrial circuits. The mean procedural duration was 207.5 minutes, with a mean fluoroscopy time of 12.1 minutes. The pooled acute success rate was 89.2% [95% CI (77.8%, 97.4%)]. Freedom from arrhythmia recurrence was 84.5% [95% CI (72.5%, 94.0%)] over a mean follow-up of 24.3 months. The procedural complication rate was 3.5% with no complication attributable to RMN technology. CONCLUSION RMN-guided ablation appears to be safe and effective across a variety of arrhythmia substrates and types of CHD.
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Affiliation(s)
- Christophe Vô
- Division of Electrophysiology, Department of Pediatric Cardiology, Centre Hospitalier Universitaire Ste-Justine, Université de Montréal, Montreal, Québec, Canada.,Electrophysiology Service, Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Stefano Bartoletti
- Electrophysiology Service, Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Karim Benali
- Electrophysiology Service, Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada.,Electrophysiology Service, Department of Cardiology, Saint-Etienne University Hospital Center, SaintEtienne, France
| | - Cecilia M Gonzalez
- Division of Electrophysiology, Department of Pediatric Cardiology, Centre Hospitalier Universitaire Ste-Justine, Université de Montréal, Montreal, Québec, Canada
| | - Blandine Mondésert
- Electrophysiology Service, Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Marie-Hélène Gagnon
- Division of Electrophysiology, Department of Pediatric Cardiology, Centre Hospitalier Universitaire Ste-Justine, Université de Montréal, Montreal, Québec, Canada
| | - Katia Dyrda
- Electrophysiology Service, Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Anne Fourier
- Division of Electrophysiology, Department of Pediatric Cardiology, Centre Hospitalier Universitaire Ste-Justine, Université de Montréal, Montreal, Québec, Canada
| | - Paul Khairy
- Division of Electrophysiology, Department of Pediatric Cardiology, Centre Hospitalier Universitaire Ste-Justine, Université de Montréal, Montreal, Québec, Canada.,Electrophysiology Service, Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
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Liu Y, Yu M, Wu Y, Wu F, Feng X, Zhao H. Myeloperoxidase in the pericardial fluid improves the performance of prediction rules for postoperative atrial fibrillation. J Thorac Cardiovasc Surg 2023; 165:1064-1077.e8. [PMID: 34275621 DOI: 10.1016/j.jtcvs.2021.06.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 05/15/2021] [Accepted: 06/09/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVES After surgery, inflammation is a prominent factor influencing postoperative atrial fibrillation. Myeloperoxidase is a major contributor to inflammatory responses after surgical tissue damage. We evaluated whether myeloperoxidase is associated with postoperative atrial fibrillation clinically and in an animal model. METHODS This prospective cohort study included patients undergoing isolated coronary artery bypass grafting. Myeloperoxidase concentrations in blood and pericardial fluid were determined at baseline and 6, 12, and 18 hours after coronary artery bypass grafting. Myeloperoxidase activity in blood, pericardial fluid, and atrium were also evaluated in a canine coronary artery bypass grafting model. Electrophysiologic, histologic, and immunohistochemistry analyses were performed to explore underlying mechanisms. RESULTS Postoperative atrial fibrillation occurred in 45 of 137 patients (32.8%). Patients with postoperative atrial fibrillation had significantly higher serum and pericardial myeloperoxidase levels. Individual clinical and surgical factors had moderate predictive value (area under the curve, 0.760) for postoperative atrial fibrillation. Discrimination improved remarkably when myeloperoxidase was combined with other parameters (area under the curve, 0.901). Pericardial myeloperoxidase at 6 hours postoperatively was the strongest independent predictor of postoperative atrial fibrillation (odds ratio, 19.215). The rate of postoperative atrial fibrillation increased exponentially across pericardial myeloperoxidase grades. Compared with controls, coronary artery bypass grafting-treated dogs showed higher atrial fibrillation vulnerability and maintenance, shorter atrial effective refractory period, attenuated connexin 43 expression, and increased myocardial and pericardial myeloperoxidase activity. Connexin 43 expression and atrial effective refractory period were strongly negatively correlated with myocardial and pericardial myeloperoxidase activity. CONCLUSIONS Myeloperoxidase is linked to postoperative atrial fibrillation, and the ability to predict postoperative atrial fibrillation was remarkably improved by adding pericardial myeloperoxidase. Myeloperoxidase-related atrial structural and electrical remodeling is a physiologic substrate for this arrhythmia.
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Affiliation(s)
- Yisi Liu
- Capital Medical University, Beijing, P. R. China
| | - Meng Yu
- Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, P.R. China
| | - Ying Wu
- Capital Medical University, Beijing, P. R. China.
| | - Fangqin Wu
- Capital Medical University, Beijing, P. R. China
| | - Xinwei Feng
- Capital Medical University, Beijing, P. R. China
| | - Haibo Zhao
- Beijing Chao-yang Hospital affiliated to Capital Medical University, Beijing, P.R. China
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Wang H, Xi S, Chen J, Gan T, Huang W, He B, Zhao L. Left Atrial Anterior Wall Scar-Related Atrial Tachycardia in Patients after Catheter Ablation or Cardiac Surgery: Electrophysiological Characteristics and Ablation Strategy. J Cardiovasc Dev Dis 2022; 9:jcdd9080249. [PMID: 36005413 PMCID: PMC9409392 DOI: 10.3390/jcdd9080249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 11/28/2022] Open
Abstract
Background: The mechanisms of atrial tachycardia (AT) related to the left atrial anterior wall (LAAW) are complex and can be challenging to map in patients after catheter ablation for atrial fibrillation (AF) or cardiac surgery. We aimed to investigate the electrophysiological characteristics AT and to devise an ablation strategy. Methods and Results: We identified 31 scar-related LAAW reentrant ATs in 22 patients after catheter ablation for AF or cardiac surgery. Activation maps of the left atrium (LA) or both atria were obtained using a high-density mapping system, and the precise mechanism and critical area for each AT were analyzed. Patients were followed up regularly in a clinic. After analyzing the activation and propagation of each AT, the scar-related LAAW ATs were classified into three types, based on mechanisms related to: (1) LAAW conduction gap(s) in 19 LA macro-reentrant ATs; (2) LAAW epicardial connection(s) in 11 LA or bi-atrial ATs; and (3) LAAW local micro-reentry in 1 LAAW AT. Multiple ATs were identified in seven patients. Effective ablation (termination or circuit change of AT) was obtained in 30 ATs by targeting the critical area identified by the mapping system. During 16.0 ± 7.6 months follow-up, recurrent AT occurred in two patients. Conclusions: Three mechanisms of scar-related AT of LAAW were identified, most of which were related to LAAW conduction gaps. Notably, epicardial AT or bi-atrial AT comprised a nonnegligible proportion. A high-density mapping system could make it possible to determine the accurate mechanism of AT and serve as a guide following ablation.
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Affiliation(s)
- Hao Wang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200003, China
| | - Siqi Xi
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200003, China
| | - Jindong Chen
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200003, China
| | - Tian Gan
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200003, China
| | - Weiye Huang
- Cardiac Electrophysiology Department, Boston Scientific Company, Shanghai 200023, China
| | - Ben He
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200003, China
- Correspondence: (B.H.); (L.Z.); Tel.: +86-021-22200000 (ext. 2103) (L.Z.)
| | - Liang Zhao
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200003, China
- Correspondence: (B.H.); (L.Z.); Tel.: +86-021-22200000 (ext. 2103) (L.Z.)
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Prediction of PR interval prolongation after catheter ablation of incisional atrial tachycardia. J Cardiol Cases 2022; 26:208-211. [DOI: 10.1016/j.jccase.2022.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/14/2022] [Accepted: 04/25/2022] [Indexed: 11/23/2022] Open
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Li X, Jin Q, Zhang N, Ling T, Lin C, Jia K, Bao Y, Xie Y, Wei Y, Chen K, Pan W, Xie Y, Wu L. Procedural outcomes and learning curve of cardiac arrhythmias catheter ablation using remote magnetic navigation: Experience from a large-scale single-center study. Clin Cardiol 2020; 43:968-975. [PMID: 32453461 PMCID: PMC7462195 DOI: 10.1002/clc.23391] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/21/2020] [Accepted: 05/07/2020] [Indexed: 01/22/2023] Open
Abstract
Background Remote magnetic navigation (RMN)‐guided ablation has become an inspiring method of catheter ablation for tachyarrhythmias. Hypothesis Data from a large‐scale single center may provide further insight into the safety of and the learning curve for RMN‐guided ablation. Methods A total of 1003 catheter ablation procedures using RMN for conditions including supraventricular ventricular tachycardia, atrial tachyarrhythmias, and premature ventricular contraction/ventricular tachycardia (PVC/VT) were retrospectively analyzed from an ablation registry. Procedural outcomes, including procedure time, mapping time, X‐ray time, and RF time, were assessed. The complications were classified into two categories: major and minor. A subanalysis was used to illustrate the learning curve of RMN‐guided ablation by assessing procedure time and total X‐ray time of 502 atrial fibrillation (AF) ablation procedures. Results Among these procedures, 556 (55.4%) were AF and 290 (28.9%) were PVC/VT. Electrical pulmonary vein isolation was achieved in 99.0% of AF procedures, and acute success reached 90.3% in PVC/VT procedures. The overall complication rate was 0.5%. In the subanalysis of AF procedures, the overall procedure time and X‐ray time of procedures were short (125.9 ± 54.6 and 5.3 ± 3.9 minutes, respectively) and proceeded to decrease from the initial 30 procedures to about 300 procedures, where the learning curve reached plateau, demonstrating maximum procedure efficiency. Conclusions RMN‐guided ablation is safe, as verified by very low overall complication rate and reduced X‐ray time. In our study, even the first AF procedures had a relatively low procedure time and total X‐ray time, and procedure efficiency improved during the learning curve.
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Affiliation(s)
- Xiang Li
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Jin
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ning Zhang
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianyou Ling
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Changjian Lin
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kangni Jia
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yangyang Bao
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yun Xie
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yue Wei
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kang Chen
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenqi Pan
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yucai Xie
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liqun Wu
- Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Wang G, Chen G, Huang X, Hu J, Yu X. Application of Radiofrequency Ablation in Treatment of Tachyarrhythmia based on CartoUnivu and Carto3 Intelligent System (Preprint). JMIR Med Inform 2020. [DOI: 10.2196/18573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Houck CA, Chandler SF, Bogers AJJC, Triedman JK, Walsh EP, de Groot NMS, Abrams DJ. Arrhythmia Mechanisms and Outcomes of Ablation in Pediatric Patients With Congenital Heart Disease. Circ Arrhythm Electrophysiol 2019; 12:e007663. [PMID: 31722541 DOI: 10.1161/circep.119.007663] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND In contrast to the adult population with congenital heart disease (CHD), arrhythmia mechanisms and outcomes of ablation in pediatric patients with CHD in recent era have not been studied in detail. Aims of this study were to determine arrhythmia mechanisms and to evaluate procedural and long-term outcomes in pediatric patients with CHD undergoing catheter ablation. METHODS Consecutive patients <18 years of age with CHD undergoing catheter ablation over an 11-year period (2007-2018) were included. Procedural outcome included complete or partial success, failure or empirical ablation. Long-term outcome included arrhythmia recurrence and burden according to a 12-point clinical arrhythmia severity score. RESULTS The study population consisted of 232 patients (11.7 years [0.01-17.8], 33.5 kg [2.2-130.1]). The most common diagnoses were Ebstein's anomaly (n=44), septal defects (n=39), and single ventricle (n=36). Arrhythmia mechanisms included atrioventricular reentry tachycardia (n=104, 90 patients), atrioventricular nodal reentry tachycardia (n=33, 29 patients), twin atrioventricular nodal tachycardia (n=3, 2 patients), macroreentrant atrial tachycardia (n=59, 56 patients), focal atrial tachycardia (n=33, 25 patients), ventricular ectopy (n=10, 8 patients), and ventricular tachycardia (n=15, 13 patients). Fifty-six arrhythmias (39 patients) were undefined. Outcomes included complete success (n=189, 81%), partial success (n=7, 3%), failure (n=16, 7%), or empirical ablation (n=20, 9%). Over 3.6 years (0.3-10.7) arrhythmia recurred in 49%. Independent of arrhythmia recurrence, arrhythmia scores decreased from 4 (0-10) at baseline to 0.5 (0-8) at 4 years follow-up (P<0.001). In 23/51 repeat procedures (45%), a different arrhythmia substrate was found. Overall adverse event rate was 9.4%, although only 1.6% (n=4) were of major severity and 0.8% (n=2) of moderate severity. CONCLUSIONS Pediatric patients with CHD demonstrate a broad spectrum of arrhythmia mechanisms. Despite recurrence and emergence of novel mechanisms after a successful procedure, ablation can be performed safely and successfully resulting in decreased arrhythmia burden.
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Affiliation(s)
- Charlotte A Houck
- Department of Cardiology (C.A.H., N.M.S.d.G.), Erasmus University Medical Center, Rotterdam, the Netherlands.,Department of Cardio-Thoracic Surgery (C.A.H., A.J.J.C.B.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Stephanie F Chandler
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA (S.F.C., J.K.T., E.P.W., D.J.A.)
| | - Ad J J C Bogers
- Department of Cardio-Thoracic Surgery (C.A.H., A.J.J.C.B.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - John K Triedman
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA (S.F.C., J.K.T., E.P.W., D.J.A.)
| | - Edward P Walsh
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA (S.F.C., J.K.T., E.P.W., D.J.A.)
| | - Natasja M S de Groot
- Department of Cardiology (C.A.H., N.M.S.d.G.), Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Dominic J Abrams
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA (S.F.C., J.K.T., E.P.W., D.J.A.)
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Li T, Liang W, Xiao X, Qian Y. Nanotechnology, an alternative with promising prospects and advantages for the treatment of cardiovascular diseases. Int J Nanomedicine 2018; 13:7349-7362. [PMID: 30519019 PMCID: PMC6233477 DOI: 10.2147/ijn.s179678] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Cardiovascular diseases (CVDs) are one of the most important causes of mortality and affecting the health status of patients. At the same time, CVDs cause a huge health and economic burden to the whole world. Although a variety of therapeutic drugs and measures have been produced to delay the progress of the disease and improve the quality of life of patients, most of the traditional therapeutic strategies can only cure the symptoms and cannot repair or regenerate the damaged ischemic myocardium. In addition, they may bring some unpleasant side effects. Therefore, it is vital to find and explore new technologies and drugs to solve the shortcomings of conventional treatments. Nanotechnology is a new way of using and manipulating the matter at the molecular scale, whose functional organization is measured in nanometers. Because nanoscale phenomena play an important role in cell signal transduction, enzyme action and cell cycle, nanotechnology is closely related to medical research. The application of nanotechnology in the field of medicine provides an alternative and novel direction for the treatment of CVDs, and shows excellent performance in the field of targeted drug therapy and the development of biomaterials. This review will briefly introduce the latest applications of nanotechnology in the diagnosis and treatment of common CVDs.
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Affiliation(s)
- Tao Li
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, China,
| | - Weitao Liang
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, China,
| | - Xijun Xiao
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, China,
| | - Yongjun Qian
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, China,
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