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Aagaard P, Natale A, Briceno D, Nakagawa H, Mohanty S, Gianni C, Burkhardt JD, DI Biase L. Remote Magnetic Navigation: A Focus on Catheter Ablation of Ventricular Arrhythmias. J Cardiovasc Electrophysiol 2016; 27 Suppl 1:S38-44. [PMID: 26969222 DOI: 10.1111/jce.12938] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 01/17/2016] [Accepted: 01/20/2016] [Indexed: 11/26/2022]
Abstract
VT ablation is based on percutaneous catheter insertion under fluoroscopic guidance to selectively destroy (i.e., ablate) myocardial tissue regions responsible for the initiation or propagation of ventricular arrhythmias. Although the last decade has witnessed a rapid evolution of ablation equipment and techniques, the control over catheter movement during manual ablation has remained largely unchanged. Moreover, the procedures are long, and require ergonomically unfavorable positions, which can lead to operator fatigue. In an attempt to overcome these constraints, several technical advancements, including remote magnetic navigation (RMN), have been developed. RMN utilizes a magnetic field to remotely manipulate specially designed soft-tip ablation catheters anywhere in the x, y, or z plane inside the patient's chest. RMN also facilitates titration of the contact force between the catheter and the myocardial tissue, which may reduce the risk of complications while ensuring adequate lesion formation. There are several non-randomized studies showing that RMN has similar efficacy to manual ablation, while complication rates and total radiation exposure appears to be lower. Although these data are promising, larger randomized studies are needed to prove that RMN is superior to manual ablation of VT.
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Affiliation(s)
- Philip Aagaard
- Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Andrea Natale
- Texas Cardiac Arrhythmia Institute at St. David's Medical Center, Austin, Texas, USA.,Department of Cardiology, University of Foggia, Foggia, Italy.,Division of Cardiology, Stanford University, Stanford, California, USA.,Case Western Reserve University, Cleveland, Ohio, USA.,EP Services, California Pacific Medical Center, San Francisco, California, USA.,Interventional Electrophysiology, Scripps Clinic, San Diego, California, USA.,Dell Medical School, University of Texas, Austin, Texas, USA
| | - David Briceno
- Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Hiroshi Nakagawa
- Heart Rhythm Institute, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Sanghamitra Mohanty
- Texas Cardiac Arrhythmia Institute at St. David's Medical Center, Austin, Texas, USA
| | - Carola Gianni
- Texas Cardiac Arrhythmia Institute at St. David's Medical Center, Austin, Texas, USA
| | - J David Burkhardt
- Texas Cardiac Arrhythmia Institute at St. David's Medical Center, Austin, Texas, USA
| | - Luigi DI Biase
- Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA.,Texas Cardiac Arrhythmia Institute at St. David's Medical Center, Austin, Texas, USA.,Department of Biomedical Engineering, University of Texas, Austin, Texas, USA.,Department of Cardiology, University of Foggia, Foggia, Italy
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Burkhardt JD. Remote magnetic navigation for ventricular ablation: did the machine win this round? J Interv Card Electrophysiol 2016; 48:5-7. [PMID: 27722835 DOI: 10.1007/s10840-016-0197-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 10/02/2016] [Indexed: 01/06/2023]
Affiliation(s)
- J David Burkhardt
- Texas Cardiac Arrhythmia Institute, 3000 N. IH 35, Suite 700, Austin, TX, 78705, USA.
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Wu Y, Li KL, Zheng J, Zhang CY, Liu XY, Cui ZM, Yu ZM, Wang RX, Wang W. Remote magnetic navigation vs. manual navigation for ablation of ventricular tachycardia: a meta-analysis. Neth Heart J 2015. [PMID: 26215291 PMCID: PMC4580670 DOI: 10.1007/s12471-015-0734-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The purpose of this study was to prospectively evaluate the efficacy and safety of remote magnetic navigation (RMN) in comparison with manual catheter navigation (MCN) in performing ventricular tachycardia ablation. METHODS An electronic search was performed using PubMed (1948-2013) and EMBASE (1974-2013) studies comparing RMN with MCN which were published prior to 31 December 2013. Outcomes of interest were as follows: acute success, recurrence rate, complications, total procedure and fluoroscopic times. Standard mean difference (SMD) and its 95 % confidence interval (CI) were used for continuous outcomes; odds ratios (OR) were reported for dichotomous variables. RESULTS Four non-randomised studies, including a total of 328 patients, were identified. RMN was deployed in 191 patients. Acute success and long-term freedom from arrhythmias were not significantly different between the RMN and control groups (OR 1.845, 95 % CI 0.731-4.659, p = 0.195 and OR 0.676, 95 % CI 0.383-1.194, p = 0.177, respectively). RMN was associated with less peri-procedural complications (OR 0.279, 95 % CI 0.092-0.843, p = 0.024). Shorter procedural and fluoroscopy times were achieved (95 % CI -0.487 to -0.035, p = 0.024 and 95 % CI -1.467 to -0.984, p<0.001, respectively). CONCLUSION The acute and long-term success rates for VT ablation are equal between RMN and MCN, whereas the RMN-guided procedure can be performed with a lower complication rate and less procedural and fluoroscopic times. More prospective randomised trials will be needed to better evaluate the superior role of RMN for catheter ablation of ventricular tachycardia.
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Affiliation(s)
- Y Wu
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - K-L Li
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - J Zheng
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - C-Y Zhang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - X-Y Liu
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - Z-M Cui
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - Z-M Yu
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - R-X Wang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 214023, Wuxi, Jiangsu, China.
| | - W Wang
- Wuxi Center for Disease Control and Prevention, 214023, Wuxi, Jiangsu, China
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The first human experience of a contact force sensing catheter for epicardial ablation of ventricular tachycardia. Neth Heart J 2014; 22:225-30. [PMID: 24710865 PMCID: PMC4016330 DOI: 10.1007/s12471-014-0554-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Contact force (CF) is one of the major determinants for sufficient lesion formation. CF-guided procedures are associated with enhanced lesion formation and procedural success. We report our initial experience in epicardial ventricular tachycardia (VT) ablation with a force-sensing catheter using a new approach with an angioplasty balloon. Two patients with arrhythmogenic right ventricular cardiomyopathy who underwent prior unsuccessful endocardial ablation were treated with epicardial VT ablation. CF data were used to titrate force, power and ablation time.
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Valk SDA, de Groot NMS, Jordaens L. Catheter ablation of right ventricular outflow tract tachycardia using contact force guidance. Neth Heart J 2014; 22:460-2. [PMID: 24399322 PMCID: PMC4188848 DOI: 10.1007/s12471-013-0492-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- S D A Valk
- Department of Clinical Electrophysiology, Erasmus Medical Center, 's Gravendijkwal 230 room Ba 593, 3015 CE, Rotterdam, the Netherlands,
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de Vries LJ, Akca F, Khan M, Dabiri-Abkenari L, Janse P, Theuns DAMJ, Peters E, de Ruiter G, Szili-Torok T. Clinical outcome of ablation for long-standing persistent atrial fibrillation with or without defragmentation. Neth Heart J 2014; 22:30-6. [PMID: 24155102 PMCID: PMC3890005 DOI: 10.1007/s12471-013-0483-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To assess the outcome and associated risks of atrial defragmentation for the treatment of long-standing persistent atrial fibrillation (LSP-AF). METHODS Thirty-seven consecutive patients (60.4 ± 7.3 years; 28 male) suffering from LSP-AF who underwent pulmonary vein isolation (PVI) and linear ablation were compared. All patients were treated with the Stereotaxis magnetic navigation system (MNS). Two groups were distinguished: patients with (n = 20) and without (n = 17) defragmentation. The primary endpoint of the study was freedom of AF after 12 months. Secondary endpoints were AF termination, procedure time, fluoroscopy time and procedural complications. Complications were divided into two groups: major (infarction, stroke, major bleeding and tamponade) and minor (fever, pericarditis and inguinal haematoma). RESULTS No difference was seen in freedom of AF between the defragmentation and the non-defragmentation group (56.2 % vs. 40.0 %, P = 0.344). Procedure times in the defragmentation group were longer; no differences in fluoroscopy times were observed. No major complications occurred. A higher number of minor complications occurred in the defragmentation group (45.0 % vs. 5.9 %, P = 0.009). Mean hospital stay was comparable (4.7 ± 2.2 vs. 3.4 ± 0.8 days, P = 0.06). CONCLUSION Our study suggests that complete defragmentation using MNS is associated with a higher number of minor complications and longer procedure times and thus compromises efficiency without improving efficacy.
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Affiliation(s)
- L J de Vries
- Department of Clinical Electrophysiology, Erasmus Medical Center, Rotterdam, the Netherlands
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de Groot JR, Deneke T. Epicardial mapping and ablation of arrhythmias: is magnetic navigation the answer we have been waiting for? Neth Heart J 2013; 21:389-390. [PMID: 23959847 PMCID: PMC3751028 DOI: 10.1007/s12471-013-0446-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- J R de Groot
- Heart Center, Department of Cardiology, Academic Medical Center/University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands,
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