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Trohman RG. Narrative Review: Surgical and Hybrid Management of Atrial Fibrillation. Cardiol Ther 2024; 13:493-528. [PMID: 39134905 PMCID: PMC11333670 DOI: 10.1007/s40119-024-00377-2] [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: 03/26/2024] [Accepted: 07/15/2024] [Indexed: 08/20/2024] Open
Abstract
Although significant strides have been made in non-pharmacologic management of atrial fibrillation (AF), these treatments remain a work in progress. While catheter ablation is often effective for management of paroxysmal AF, it is less successful in patients with persistent or longstanding persistent AF. This review was undertaken to clarify the risks, benefits, and alternatives to catheter ablation for non-pharmacologic AF management. In order to clarify the roles of surgical and hybrid ablation, this narrative review was undertaken by searching MEDLINE to identify peer-reviewed clinical trials, randomized controlled trials, meta-analyses, review articles, and other clinically relevant studies. The search was limited to English-language reports published between 1960 and 2023. Atrial fibrillation was searched using the terms surgical ablation, catheter ablation, hybrid ablation, stroke prevention, left atrial occlusion, and atrial excision. Google and Google Scholar, as well as bibliographies of identified articles, were also reviewed for additional references. The Cox-maze surgical approach is still the most efficacious non-pharmacological treatment for AF. Hybrid ablation, combining cardiac surgical and catheter ablation techniques, has become an attractive option for persistent or longstanding persistent AF.
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Affiliation(s)
- Richard G Trohman
- Section of Electrophysiology, Division of Cardiology, Department of Internal Medicine, Rush University Medical Center, 1653 W. Congress, Chicago, IL, 60612, USA.
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Wyler von Ballmoos MC, Hui DS, Mehaffey JH, Malaisrie SC, Vardas PN, Gillinov AM, Sundt TM, Badhwar V. The Society of Thoracic Surgeons 2023 Clinical Practice Guidelines for the Surgical Treatment of Atrial Fibrillation. Ann Thorac Surg 2024; 118:291-310. [PMID: 38286206 DOI: 10.1016/j.athoracsur.2024.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/08/2024] [Accepted: 01/13/2024] [Indexed: 01/31/2024]
Abstract
The Society of Thoracic Surgeons 2023 Clinical Practice Guidelines for the Surgical Treatment of Atrial Fibrillation incorporate the most recent evidence for surgical ablation and left atrial appendage occlusion in different clinical scenarios. Substantial new evidence regarding the risks and benefits of surgical left atrial appendage occlusion and the long-term benefits of surgical ablation has been produced in the last 5 years. Compared with the 2017 clinical practice guideline, the current update has an emphasis on surgical ablation in first-time, nonemergent cardiac surgery and its long-term benefits, an extension of the recommendation to perform surgical ablation in all patients with atrial fibrillation undergoing first-time, nonemergent cardiac surgery, and a new class I recommendation for left atrial appendage occlusion in all patients with atrial fibrillation undergoing first-time, nonemergent cardiac surgery. Further guidance is provided for patients with structural heart disease and atrial fibrillation being considered for transcatheter valve repair or replacement, as well as patients in need of isolated left atrial appendage management who are not candidates for surgical ablation. The importance of a multidisciplinary team assessment, treatment planning, and long-term follow-up are reiterated in this clinical practice guideline with a class I recommendation, along with the other recommendations from the 2017 guidelines that remained unchanged in their class of recommendation and level of evidence.
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Affiliation(s)
| | - Dawn S Hui
- Department of Cardiothoracic Surgery, University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - J Hunter Mehaffey
- Department of Cardiovascular and Thoracic Surgery, West Virginia University, Morgantown, West Virginia
| | - S Chris Malaisrie
- Division of Cardiac Surgery, Department of Surgery, Northwestern University, Chicago, Illinois
| | - Panos N Vardas
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - A Marc Gillinov
- Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Thoralf M Sundt
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Vinay Badhwar
- Department of Cardiovascular and Thoracic Surgery, West Virginia University, Morgantown, West Virginia
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Pick AW, Kotschet E, Healy S, Adam D, Bittinger L. Hybrid Totally Thoracoscopic Maze and Catheter Ablation for Persistent Atrial Fibrillation: Initial Experience. Heart Lung Circ 2023; 32:1107-1114. [PMID: 37460351 DOI: 10.1016/j.hlc.2023.06.002] [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: 02/08/2023] [Revised: 04/29/2023] [Accepted: 06/06/2023] [Indexed: 10/06/2023]
Abstract
Atrial fibrillation is now a pandemic in our ageing community. Although James L. Cox devised a surgical procedure with near-universal curative success in 1987, catheter-based interventions have flourished. For persistent atrial fibrillation (AF), however, an isolated endocardial approach has limitations: procedural times are long, carry risk, and the outcomes are not durable. By combining left atrial endocardial and epicardial interventions with staged mapping, we optimise the benefits of both approaches. Our initial series of hybrid ablation for persistent atrial fibrillation reports excellent early outcomes, freedom from complications and excellent success at follow-up.
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Affiliation(s)
- Adrian W Pick
- Victorian Heart Hospital, Melbourne, Vic, Australia; Cabrini Medical Centre, Melbourne, Vic, Australia; Peninsula Private Hospital, Melbourne, Vic, Australia.
| | - Emily Kotschet
- Victorian Heart Hospital, Melbourne, Vic, Australia; Cabrini Medical Centre, Melbourne, Vic, Australia
| | - Stewart Healy
- Victorian Heart Hospital, Melbourne, Vic, Australia; Cabrini Medical Centre, Melbourne, Vic, Australia
| | - David Adam
- Victorian Heart Hospital, Melbourne, Vic, Australia
| | - Logan Bittinger
- Victorian Heart Hospital, Melbourne, Vic, Australia; Peninsula Private Hospital, Melbourne, Vic, Australia
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Intrinsic Cardiac Neuromodulation in the Management of Atrial Fibrillation- A Potential Missing Link? Life (Basel) 2023; 13:life13020383. [PMID: 36836740 PMCID: PMC9966489 DOI: 10.3390/life13020383] [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: 12/20/2022] [Revised: 01/14/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Atrial fibrillation (AF) is the most common supraventricular arrhythmia that is linked with higher cardiovascular morbidity and mortality. Recent evidence has demonstrated that catheter-based pulmonary vein isolation (PVI) is not only a viable alternative but may be superior to antiarrhythmic drug therapy for long-term freedom from symptomatic AF episodes, a reduction in the arrhythmia burden, and healthcare resource utilization with a similar risk of adverse events. The intrinsic cardiac autonomic nervous system (ANS) has a significant influence on the structural and electrical milieu, and imbalances in the ANS may contribute to the arrhythmogenesis of AF in some individuals. There is now increasing scientific and clinical interest in various aspects of neuromodulation of intrinsic cardiac ANS, including mapping techniques, ablation methods, and patient selection. In the present review, we aimed to summarize and critically appraise the currently available evidence for the neuromodulation of intrinsic cardiac ANS in AF.
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Karsan RB, Allen R, Powell A, Beattie GW. Minimally-invasive cardiac surgery: a bibliometric analysis of impact and force to identify key and facilitating advanced training. J Cardiothorac Surg 2022; 17:236. [PMID: 36114506 PMCID: PMC9479391 DOI: 10.1186/s13019-022-01988-3] [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: 07/25/2022] [Accepted: 08/30/2022] [Indexed: 11/28/2022] Open
Abstract
Background The number of citations an article receives is a marker of its scientific influence within a particular specialty. This bibliometric analysis intended to recognise the top 100 cited articles in minimally-invasive cardiac surgery, to determine the fundamental subject areas that have borne considerable influence upon clinical practice and academic knowledge whilst also considering bibliometric scope. This is increasingly relevant in a continually advancing specialty and one where minimally-invasive cardiac procedures have the potential for huge benefits to patient outcomes.
Methods The Web of Science (Clarivate Analytics) data citation index database was searched with the following terms: [Minimal* AND Invasive* AND Card* AND Surg*]. Results were limited to full text English language manuscripts and ranked by citation number. Further analysis of the top 100 cited articles was carried out according to subject, author, publication year, journal, institution and country of origin. Results A total of 4716 eligible manuscripts were retrieved. Of the top 100 papers, the median (range) citation number was 101 (51–414). The most cited paper by Lichtenstein et al. (Circulation 114(6):591–596, 2006) published in Circulation with 414 citations focused on transapical transcatheter aortic valve implantation as a viable alternative to aortic valve replacement with cardiopulmonary bypass in selected patients with aortic stenosis. The Annals of Thoracic Surgery published the most papers and received the most citations (n = 35; 3036 citations). The United States of America had the most publications and citations (n = 52; 5303 citations), followed by Germany (n = 27; 2598 citations). Harvard Medical School, Boston, Massachusetts, published the most papers of all institutions. Minimally-invasive cardiac surgery pertaining to valve surgery (n = 42) and coronary artery bypass surgery (n = 30) were the two most frequent topics by a large margin. Conclusions This work establishes a comprehensive and informative analysis of the most influential publications in minimally-invasive cardiac surgery and outlines what constitutes a citable article. Undertaking a quantitative evaluation of the top 100 papers aids in recognising the contributions of key authors and institutions as well as guiding future efforts in this field to continually improve the quality of care offered to complex cardiac patients.
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Belluschi I, Lapenna E, Carino D, Trumello C, Cireddu M, Ruggeri S, Schiavi D, Monaco F, Pozzoli A, Agricola E, Alfieri O, De Bonis M, Benussi S. Long-term results of thoracoscopic ablation of paroxysmal atrial fibrillation: is the glass half full or half empty? Eur J Cardiothorac Surg 2021; 60:850-856. [PMID: 33778846 DOI: 10.1093/ejcts/ezab138] [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: 09/13/2020] [Revised: 01/24/2021] [Accepted: 01/27/2021] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Previous series showed the outcomes of thoracoscopic ablation of stand-alone symptomatic paroxysmal atrial fibrillation (AF) for up to 7 years of follow-up. The goal of this study was to assess the long-term durability of surgical pulmonary vein isolation (PVI) beyond 7 years. METHODS Fifty consecutive patients {mean age 55 [standard deviation (SD): 11.2] years, previous catheter ablation in 56%, left ventricular ejection fraction 60% (SD: 4.6), left atrium volume 65 ml (SD: 17)} with stand-alone symptomatic paroxysmal AF underwent PVI through bilateral thoracoscopy ablation between 2005 and 2014. The CHA2DS2-VASc score was ≥2 in 12 patients (24%). RESULTS No hospital deaths occurred. At hospital discharge all patients but 1 (2%) were in sinus rhythm (SR). Follow-up was 100% complete [mean 8.4 years (SD: 2.3), max 15]. The 8-year cumulative incidence function of AF recurrence, with death as a competing risk, on or off class I/III antiarrhythmic drugs (AADs)/electrocardioversion/re-transcatheter ablation (TCA) was 20% (SD: 5; 95% confidence interval: 10, 32); and off class I/III AADs/electrocardioversion/re-TCA was 52% (SD: 7; 95% confidence interval: 0.83, 8.02). At 8 years, the predicted prevalence of patients in SR was 87% and 53% were off class I/III AADs/electrocardioversion/re-TCA. The recurrent arrhythmia was AF in all patients except 2, who had atypical atrial flutter (4%). No predictors of AF recurrence were identified. At the last follow-up, 76% of the patients showed European Heart Rhythm Association class I. No strokes or thromboembolic events were documented and 76% of the subjects were off anticoagulation therapy. CONCLUSIONS Despite a considerable AF recurrence rate, our single-centre, long-term outcome of surgical PVI showed encouraging data, with the majority of patients remaining in SR, although many of them were on antiarrhythmic therapy.
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Affiliation(s)
- Igor Belluschi
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Elisabetta Lapenna
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Davide Carino
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Cinzia Trumello
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Manuela Cireddu
- Department of Cardiac Electrophysiology and Arrhythmia, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Stefania Ruggeri
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Davide Schiavi
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Fabrizio Monaco
- Department of Cardiothoracic Anesthesia and Intensive Care, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Alberto Pozzoli
- Heart Surgery Unit, Zurich University Hospital, Zurich, Switzerland
| | - Eustachio Agricola
- Cardiovascular Imaging Unit, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Ottavio Alfieri
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Michele De Bonis
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Stefano Benussi
- Department of Cardiac Surgery, Spedali Civili di Brescia, University Hospital, Brescia, Italy
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Trzcinka A, Lee LS, Madias C, Homoud MK, Rastegar H, Couper GS, Cobey FC. The Convergent Procedure: A Unique Multidisciplinary Hybrid Treatment of Atrial Fibrillation. J Cardiothorac Vasc Anesth 2020; 35:631-643. [PMID: 32843268 DOI: 10.1053/j.jvca.2020.07.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/08/2020] [Indexed: 11/11/2022]
Abstract
The convergent procedure is a hybrid ablation treatment for atrial fibrillation. It is increasingly considered as a management option for patients with persistent and long-standing atrial fibrillation. It consists of surgical ablation of the posterior left atrium through a minimally invasive closed-chest approach followed by endocardial catheter ablation. It is increasingly performed with concurrent epicardial occlusion of the left atrial appendage with a video-assisted thoracoscopic technique to physically and electrically isolate the left atrial appendage. This article provides an overview of a multidisciplinary approach to the convergent procedure, with concurrent thoracoscopic closure of the left atrial appendage, with an emphasis on perioperative management at a single institution. It provides a literature review of procedural outcomes, current data limitations, and future considerations.
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Affiliation(s)
- Agnieszka Trzcinka
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA.
| | - Lawrence S Lee
- Department of Cardiac Surgery, Indiana University Health Methodist Hospital, Indianapolis, IN
| | | | | | - Hassan Rastegar
- Department of Cardiac Surgery, Tufts Medical Center, Boston, MA
| | | | - Frederick C Cobey
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA
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Goldberger JJ, Arora R, Buckley U, Shivkumar K. Autonomic Nervous System Dysfunction: JACC Focus Seminar. J Am Coll Cardiol 2020; 73:1189-1206. [PMID: 30871703 DOI: 10.1016/j.jacc.2018.12.064] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 12/21/2018] [Accepted: 12/30/2018] [Indexed: 12/20/2022]
Abstract
Autonomic nervous system control of the heart is a dynamic process in both health and disease. A multilevel neural network is responsible for control of chronotropy, lusitropy, dromotropy, and inotropy. Intrinsic autonomic dysfunction arises from diseases that directly affect the autonomic nerves, such as diabetes mellitus and the syndromes of primary autonomic failure. Extrinsic autonomic dysfunction reflects the changes in autonomic function that are secondarily induced by cardiac or other disease. An array of tests interrogate various aspects of cardiac autonomic control in either resting conditions or with physiological perturbations from resting conditions. The prognostic significance of these assessments have been well established. Clinical usefulness has not been established, and the precise mechanistic link to mortality is less well established. Further efforts are required to develop optimal approaches to delineate cardiac autonomic dysfunction and its adverse effects to develop tools that can be used to guide clinical decision-making.
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Affiliation(s)
- Jeffrey J Goldberger
- Cardiovascular Division, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida.
| | - Rishi Arora
- Feinberg Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Northwestern University-Feinberg School of Medicine, Chicago, Illinois
| | - Una Buckley
- Cardiac Arrhythmia Center and Neurocardiology Research Center of Excellence, University of California-Los Angeles Los Angeles, California
| | - Kalyanam Shivkumar
- Cardiac Arrhythmia Center and Neurocardiology Research Center of Excellence, University of California-Los Angeles Los Angeles, California
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Zhou M, Wang H, Chen J, Zhao L. Epicardial adipose tissue and atrial fibrillation: Possible mechanisms, potential therapies, and future directions. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2019; 43:133-145. [DOI: 10.1111/pace.13825] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 10/03/2019] [Accepted: 10/22/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Mengmeng Zhou
- Department of Cardiology, Shanghai Chest HospitalShanghai Jiao Tong University Shanghai China
| | - Hao Wang
- Department of Cardiology, Shanghai Chest HospitalShanghai Jiao Tong University Shanghai China
| | - Jindong Chen
- Department of Cardiology, Shanghai Chest HospitalShanghai Jiao Tong University Shanghai China
| | - Liang Zhao
- Department of Cardiology, Shanghai Chest HospitalShanghai Jiao Tong University Shanghai China
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Johnkoski J, Miles B, Sudbury A, Osman M, Munir MB, Balla S, Benjamin MM. Safety and long-term efficacy of thoracoscopic Epicardial ablation in patients with paroxysmal atrial fibrillation: a retrospective study. J Cardiothorac Surg 2019; 14:188. [PMID: 31694695 PMCID: PMC6836534 DOI: 10.1186/s13019-019-1018-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/28/2019] [Indexed: 11/30/2022] Open
Abstract
Background The aim of this study is to report the long-term efficacy and safety of thoracoscopic epicardial left atrial ablation (TELA) in patients with paroxysmal atrial fibrillation (AF). Methods This was a retrospective review of medical records. We included all patients diagnosed with paroxysmal AF who underwent TELA at our institution between 04/2011 and 06/2017. TELA included pulmonary vein isolation, LA dome lesions and LA appendage exclusion. All (n = 55) patients received an implantable loop recorder (ILR), 30 days post-operatively. Antiarrhythmic and anticoagulation therapy were discontinued at 90 and 180 days postoperatively, respectively, if patients were free of AF recurrence. Failure was defined as ≥two minutes of continuous AF, or atrial tachycardia. Results Fifty-five patients (78% males, mean age = 61.6 years) qualified for the study. The average duration in AF was 3.64 +/− 3.4 years, mean CHA2DS2-VASc Score was 2.0 +/− 1.6. The procedure was attempted in 57 patients and completed successfully in 55 (96.5%). Two patients experienced a minor pulmonary vein bleed that was managed conservatively. Post procedure, one patient experienced pulmonary edema, another experienced a pneumothorax requiring a chest tube and another experienced acute respiratory distress syndrome resulting in longer hospitalization. Otherwise, there were no major procedural complications. Success rates were 89.1% (n = 49/55), 85.5% (n = 47/55) and 76.9% (n = 40/52) at 6, 12 and 24 months, respectively. In the multivariate cox-proportional hazard model, survival at the mean of covariates was 86 and 74% at 12 and 24 months, respectively. Conclusion In this single center experience, TELA was a safe and efficacious procedure for patients with paroxysmal AF.
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Affiliation(s)
- John Johnkoski
- Department of Cardiothoracic Surgery, Aspirus Wausau Hospital, 2400 Pine Ridge Blvd, Wausau, WI, 54401, USA
| | - Bryan Miles
- School of Medicine, Medical College of Wisconsin, 8701 W Watertown Plank Rd, Wauwatosa, WI, 53226, USA
| | - Anna Sudbury
- School of Medicine, Medical College of Wisconsin, 8701 W Watertown Plank Rd, Wauwatosa, WI, 53226, USA
| | - Mohammed Osman
- Department of Internal Medicine (Division of Cardiovascular Medicine), West Virginia University Hospitals, 1 Medical Center Dr, Morgantown, WV, 26506, USA
| | - Muhammad Bilal Munir
- Department of Internal Medicine (Division of Cardiovascular Medicine), West Virginia University Hospitals, 1 Medical Center Dr, Morgantown, WV, 26506, USA
| | - Sudarshan Balla
- Department of Internal Medicine (Division of Cardiovascular Medicine), West Virginia University Hospitals, 1 Medical Center Dr, Morgantown, WV, 26506, USA
| | - Mina M Benjamin
- Department of Internal Medicine (Division of Cardiovascular Medicine), West Virginia University Hospitals, 1 Medical Center Dr, Morgantown, WV, 26506, USA.
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Neuromodulation for Ventricular Tachycardia and Atrial Fibrillation: A Clinical Scenario-Based Review. JACC Clin Electrophysiol 2019; 5:881-896. [PMID: 31439288 DOI: 10.1016/j.jacep.2019.06.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/30/2019] [Accepted: 06/04/2019] [Indexed: 12/17/2022]
Abstract
Autonomic dysregulation in cardiovascular disease plays a major role in the pathogenesis of arrhythmias. Cardiac neural control relies on complex feedback loops consisting of efferent and afferent limbs, which carry sympathetic and parasympathetic signals from the brain to the heart and sensory signals from the heart to the brain. Cardiac disease leads to neural remodeling and sympathovagal imbalances with arrhythmogenic effects. Preclinical studies of modulation at central and peripheral levels of the cardiac autonomic nervous system have yielded promising results, leading to early stage clinical studies of these techniques in atrial fibrillation and refractory ventricular arrhythmias, particularly in patients with inherited primary arrhythmia syndromes and structural heart disease. However, significant knowledge gaps in basic cardiac neurophysiology limit the success of these neuromodulatory therapies. This review discusses the recent advances in neuromodulation for cardiac arrhythmia management, with a clinical scenario-based approach aimed at bringing neurocardiology closer to the realm of the clinical electrophysiologist.
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12
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Pak HN. Catheter Ablation of Long-standing Persistent Atrial Fibrillation: a Reckless Challenge or a Way to Real Cure? Korean Circ J 2019; 49:134-145. [PMID: 30693681 PMCID: PMC6351275 DOI: 10.4070/kcj.2018.0418] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/10/2018] [Indexed: 11/11/2022] Open
Abstract
Long-standing persistent atrial fibrillation (L-PeAF) is a category in which rhythm control is attempted while atrial fibrillation (AF) is maintained for more than 1 year. Because AF is a progressive disease and L-PeAF accompanies significant electrical and structural remodeling of atria, it is difficult to restore and maintain sinus rhythm in patients with L-PeAF. Nonetheless, the rhythm outcome is being increasingly improved by the development of sophisticated mapping devices, highly efficient catheters, and evidence-based ablation strategies, and the rational choice of patient selection criteria. This review discusses the evolution of the rhythm control outcome of L-PeAF and its future direction of development.
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Affiliation(s)
- Hui Nam Pak
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea.
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13
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Weiner MM, Baron EL, Joshi K, Villablanca P, Briceno D, Torregrossa G, Evans AS, Augoustides Y, Ramakrishna H. Catheter Versus Surgical Ablation of Atrial Fibrillation: An Analysis of Outcomes. J Cardiothorac Vasc Anesth 2018; 32:2435-2443. [DOI: 10.1053/j.jvca.2018.01.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Indexed: 11/11/2022]
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14
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An K, Zhu J, Ma N, Tang M, Mei J. Predictive risk factors for recurrent atrial fibrillation after modified endoscopic ablation: A 2-year follow-up. Clin Cardiol 2018; 41:372-377. [PMID: 29480515 DOI: 10.1002/clc.22878] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/11/2017] [Accepted: 12/19/2017] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Our previous study reported a modified endoscopic procedure for nonvalvular atrial fibrillation (AF) that requires only 3 ports in the left chest wall. HYPOTHESIS Certain preoperative variables might be predictive risk factors for AF recurrence among patients who underwent this procedure. METHODS From October 2010 to April 2014, 114 patients with either paroxysmal AF (PAF) or nonparoxysmal AF (non-PAF) underwent the procedure and completed postoperative cardiac-rhythm measurement via electrocardiography and Holter monitoring. Univariate and multivariate analyses of the possible AF-related risk factors were conducted. RESULTS During 2-year follow-up, 99 of 114 patients (86.8%) were free from atrial tachyarrhythmia. Results from univariate analyses showed that AF duration, left atrial diameter (LAD), left atrial minimum volume, left atrial empty fraction, left atrial expansion index, and left atrial active empty fraction (LAAEF) were significantly associated with postoperative AF recurrence. Results from multivariate analyses showed that AF duration (odds ratio [OR]: 1.194, 95% CI: 1.063-1.340, P = 0.003), LAD (OR: 1.101, 95% CI: 1.005-1.205, P = 0.039), and LAAEF (OR: 0.490, 95% CI: 0.277-0.865, P = 0.014) were independent risk factors. There was no difference in AF recurrence between patients with PAF and non-PAF (P = 0.250). CONCLUSIONS Our 2-year follow-up study suggested that low LAAEF, long AF duration, and large LAD might be potential predictive risk factors for AF recurrence. Patients with PAF and non-PAF had a similar AF recurrence rate after modified endoscopic ablation.
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Affiliation(s)
- Kang An
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Jiaquan Zhu
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Nan Ma
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Min Tang
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Ju Mei
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
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15
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Park J. Non-medication Treatment of Atrial Fibrillation. INTERNATIONAL JOURNAL OF ARRHYTHMIA 2017. [DOI: 10.18501/arrhythmia.2017.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Bárta J, Brát R. Assessment of the effect of left atrial cryoablation enhanced by ganglionated plexi ablation in the treatment of atrial fibrillation in patients undergoing open heart surgery. J Cardiothorac Surg 2017; 12:69. [PMID: 28818088 PMCID: PMC5561587 DOI: 10.1186/s13019-017-0625-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 07/13/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of our study was to investigate, whether enhancement of left atrial cryoablation by ablation of the autonomic nervous system of left atrium leads to influencing the outcomes of surgical treatment of atrial fibrillation in patients with structural heart disease undergoing open-heart surgery. METHODS The observed patient file consisted of 100 patients, who have undergone a combined open-heart surgery at our department between July 2012 and December 2014. The patients were indicated for the surgical procedure due to structural heart disease, and suffered from paroxysmal, persistent, or long-standing persistent atrial fibrillation. In all cases, left atrial cryoablation was performed in the extent of isolation of pulmonary veins, box lesion, connecting lesion with mitral annulus, amputation of the left atrial appendage and connecting lesion of the appendage base with left pulmonary veins. Furthermore, 35 of the patients underwent mapping and radiofrequency ablation of ganglionated plexi, together with discision and ablation of the ligament of Marshall (Group GP). A control group was consisted of 65 patients without ganglionated plexi intervention (Group LA). The main primary outcome was establishment and duration of sinus rhythm in the course of one-year follow-up. RESULTS Evaluation of the number of patients with a normal sinus rhythm in per cent has shown comparable values in both groups (Group GP - 93.75%, Group LA - 86.67%, p = 0.485); comparable results were also observed in patients with normal sinus rhythm without anti-arrhythmic treatment in the 12th month (Group GP - 50%, Group LA - 47%, p = 0.306). We have not observed any relation between the recurrence of atrial fibrillation and the presence of a mitral valve surgery, or between the presence of a mitral and tricuspid valves surgery and between the left atrial diameter > 50 mm. CONCLUSIONS Enhancement of left atrial cryoablation by gangionated plexi ablation did not influence the outcomes of surgical ablation due to atrial fibrillation in our population in the course of 12-month follow-up. TRIAL REGISTRATION The study was approved retrospectively by the Ethics Committee of the University Hospital Ostrava ( reference number 867/2016).
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Affiliation(s)
- Jiří Bárta
- Cardiac Surgery, University Hospital Ostrava, 17.listopadu 1790, 708 52, Ostrava-Poruba, Czech Republic.
| | - Radim Brát
- Cardiac Surgery, University Hospital Ostrava, 17.listopadu 1790, 708 52, Ostrava-Poruba, Czech Republic
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17
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The Society of Thoracic Surgeons 2017 Clinical Practice Guidelines for the Surgical Treatment of Atrial Fibrillation. Ann Thorac Surg 2017; 103:329-341. [PMID: 28007240 DOI: 10.1016/j.athoracsur.2016.10.076] [Citation(s) in RCA: 336] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 10/12/2016] [Indexed: 02/08/2023]
Abstract
EXECUTIVE SUMMARY Surgical ablation for atrial fibrillation (AF) can be performed without additional risk of operative mortality or major morbidity, and is recommended at the time of concomitant mitral operations to restore sinus rhythm. (Class I, Level A) Surgical ablation for AF can be performed without additional operative risk of mortality or major morbidity, and is recommended at the time of concomitant isolated aortic valve replacement, isolated coronary artery bypass graft surgery, and aortic valve replacement plus coronary artery bypass graft operations to restore sinus rhythm. (Class I, Level B nonrandomized) Surgical ablation for symptomatic AF in the absence of structural heart disease that is refractory to class I/III antiarrhythmic drugs or catheter-based therapy or both is reasonable as a primary stand-alone procedure, to restore sinus rhythm. (Class IIA, Level B randomized) Surgical ablation for symptomatic persistent or longstanding persistent AF in the absence of structural heart disease is reasonable, as a stand-alone procedure using the Cox-Maze III/IV lesion set compared with pulmonary vein isolation alone. (Class IIA, Level B nonrandomized) Surgical ablation for symptomatic AF in the setting of left atrial enlargement (≥4.5 cm) or more than moderate mitral regurgitation by pulmonary vein isolation alone is not recommended. (Class III no benefit, Level C expert opinion) It is reasonable to perform left atrial appendage excision or exclusion in conjunction with surgical ablation for AF for longitudinal thromboembolic morbidity prevention. (Class IIA, Level C limited data) At the time of concomitant cardiac operations in patients with AF, it is reasonable to surgically manage the left atrial appendage for longitudinal thromboembolic morbidity prevention. (Class IIA, Level C expert opinion) In the treatment of AF, multidisciplinary heart team assessment, treatment planning, and long-term follow-up can be useful and beneficial to optimize patient outcomes. (Class I, Level C expert opinion).
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Abstract
Ganglionated plexi (GP), consisting of conglomerations of autonomic ganglia on the epicardial surface of the heart, have been shown to play a significant role in different arrhythmias, including atrial fibrillation. GP ablation has become an adjunctive procedure in the treatment of atrial fibrillation, while it has been used successfully in preliminary studies in vasovagal syncope. This review will present the current data on the physiology and clinical applications of GP ablation in the treatment of atrial fibrillation and other diseases.
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Affiliation(s)
- Stavros Stavrakis
- University of Oklahoma Health Sciences Center,Oklahoma City, Oklahoma, USA
| | - Sunny Po
- University of Oklahoma Health Sciences Center,Oklahoma City, Oklahoma, USA
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19
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Kirchhof P, Benussi S, Kotecha D, Ahlsson A, Atar D, Casadei B, Castella M, Diener HC, Heidbuchel H, Hendriks J, Hindricks G, Manolis AS, Oldgren J, Popescu BA, Schotten U, Van Putte B, Vardas P. 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS. Eur Heart J 2016; 37:2893-2962. [PMID: 27567408 DOI: 10.1093/eurheartj/ehw210] [Citation(s) in RCA: 4724] [Impact Index Per Article: 590.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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20
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Kirchhof P, Benussi S, Kotecha D, Ahlsson A, Atar D, Casadei B, Castella M, Diener HC, Heidbuchel H, Hendriks J, Hindricks G, Manolis AS, Oldgren J, Popescu BA, Schotten U, Van Putte B, Vardas P, Agewall S, Camm J, Baron Esquivias G, Budts W, Carerj S, Casselman F, Coca A, De Caterina R, Deftereos S, Dobrev D, Ferro JM, Filippatos G, Fitzsimons D, Gorenek B, Guenoun M, Hohnloser SH, Kolh P, Lip GYH, Manolis A, McMurray J, Ponikowski P, Rosenhek R, Ruschitzka F, Savelieva I, Sharma S, Suwalski P, Tamargo JL, Taylor CJ, Van Gelder IC, Voors AA, Windecker S, Zamorano JL, Zeppenfeld K. 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS. Eur J Cardiothorac Surg 2016; 50:e1-e88. [DOI: 10.1093/ejcts/ezw313] [Citation(s) in RCA: 602] [Impact Index Per Article: 75.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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21
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Kirchhof P, Benussi S, Kotecha D, Ahlsson A, Atar D, Casadei B, Castella M, Diener HC, Heidbuchel H, Hendriks J, Hindricks G, Manolis AS, Oldgren J, Popescu BA, Schotten U, Van Putte B, Vardas P, Agewall S, Camm J, Baron Esquivias G, Budts W, Carerj S, Casselman F, Coca A, De Caterina R, Deftereos S, Dobrev D, Ferro JM, Filippatos G, Fitzsimons D, Gorenek B, Guenoun M, Hohnloser SH, Kolh P, Lip GYH, Manolis A, McMurray J, Ponikowski P, Rosenhek R, Ruschitzka F, Savelieva I, Sharma S, Suwalski P, Tamargo JL, Taylor CJ, Van Gelder IC, Voors AA, Windecker S, Zamorano JL, Zeppenfeld K. 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS. Europace 2016; 18:1609-1678. [PMID: 27567465 DOI: 10.1093/europace/euw295] [Citation(s) in RCA: 1318] [Impact Index Per Article: 164.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Stefan Agewall
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - John Camm
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Gonzalo Baron Esquivias
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Werner Budts
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Scipione Carerj
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Filip Casselman
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Antonio Coca
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Raffaele De Caterina
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Spiridon Deftereos
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Dobromir Dobrev
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - José M Ferro
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Gerasimos Filippatos
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Donna Fitzsimons
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Bulent Gorenek
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Maxine Guenoun
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Stefan H Hohnloser
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Philippe Kolh
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Gregory Y H Lip
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Athanasios Manolis
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - John McMurray
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Piotr Ponikowski
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Raphael Rosenhek
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Frank Ruschitzka
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Irina Savelieva
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Sanjay Sharma
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Piotr Suwalski
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Juan Luis Tamargo
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Clare J Taylor
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Isabelle C Van Gelder
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Adriaan A Voors
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Stephan Windecker
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Jose Luis Zamorano
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
| | - Katja Zeppenfeld
- The disclosure forms of all experts involved in the development of these guidelines are available on the ESC website http://www.escardio.org/guidelines
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22
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Shivkumar K, Ajijola OA, Anand I, Armour JA, Chen PS, Esler M, De Ferrari GM, Fishbein MC, Goldberger JJ, Harper RM, Joyner MJ, Khalsa SS, Kumar R, Lane R, Mahajan A, Po S, Schwartz PJ, Somers VK, Valderrabano M, Vaseghi M, Zipes DP. Clinical neurocardiology defining the value of neuroscience-based cardiovascular therapeutics. J Physiol 2016; 594:3911-54. [PMID: 27114333 PMCID: PMC4945719 DOI: 10.1113/jp271870] [Citation(s) in RCA: 212] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 04/08/2016] [Indexed: 12/13/2022] Open
Abstract
The autonomic nervous system regulates all aspects of normal cardiac function, and is recognized to play a critical role in the pathophysiology of many cardiovascular diseases. As such, the value of neuroscience-based cardiovascular therapeutics is increasingly evident. This White Paper reviews the current state of understanding of human cardiac neuroanatomy, neurophysiology, pathophysiology in specific disease conditions, autonomic testing, risk stratification, and neuromodulatory strategies to mitigate the progression of cardiovascular diseases.
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Affiliation(s)
- Kalyanam Shivkumar
- UCLA Cardiac Arrhythmia Center and Neurocardiology Research Center of Excellence, Los Angeles, CA, USA
| | - Olujimi A Ajijola
- UCLA Cardiac Arrhythmia Center and Neurocardiology Research Center of Excellence, Los Angeles, CA, USA
| | - Inder Anand
- Department of Cardiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - J Andrew Armour
- UCLA Cardiac Arrhythmia Center and Neurocardiology Research Center of Excellence, Los Angeles, CA, USA
| | - Peng-Sheng Chen
- Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Murray Esler
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | | | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Jeffrey J Goldberger
- Division of Cardiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ronald M Harper
- Department of Neurobiology and the Brain Research Institute, University of California, Los Angeles, CA, USA
| | - Michael J Joyner
- Division of Cardiovascular Diseases, Mayo Clinic and Mayo Foundation, Rochester, MN, USA
| | | | - Rajesh Kumar
- Departments of Anesthesiology and Radiological Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Richard Lane
- Department of Psychiatry, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Aman Mahajan
- Department of Anesthesia, UCLA, Los Angeles, CA, USA
| | - Sunny Po
- Heart Rhythm Institute, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- University of Tulsa Oxley College of Health Sciences, Tulsa, OK, USA
| | - Peter J Schwartz
- Center for Cardiac Arrhythmias of Genetic Origin, IRCCS Instituto Auxologico Italiano, c/o Centro Diagnostico e di Ricerrca San Carlo, Milan, Italy
| | - Virend K Somers
- Division of Cardiovascular Diseases, Mayo Clinic and Mayo Foundation, Rochester, MN, USA
| | - Miguel Valderrabano
- Methodist DeBakey Heart and Vascular Center and Methodist Hospital Research Institute, Houston Methodist Hospital, Houston, TX, USA
| | - Marmar Vaseghi
- UCLA Cardiac Arrhythmia Center and Neurocardiology Research Center of Excellence, Los Angeles, CA, USA
| | - Douglas P Zipes
- Indiana University School of Medicine, Indianapolis, IN, USA
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23
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Choi EK, Chen PS. Is the Atrial Neural Plexis a Therapeutic Target in Atrial Fibrillation? Methodist Debakey Cardiovasc J 2016; 11:82-6. [PMID: 26306124 DOI: 10.14797/mdcj-11-2-82] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Circumferential pulmonary vein isolation is the mainstay of atrial fibrillation (AF) ablation, but alternative approaches and techniques have been developed to improve the outcomes. One of these additional ablation targets are ganglionated plexi of the intrinsic cardiac autonomic system that contain a variety of sympathetic and parasympathetic neurons that communicate with the extrinsic cardiac autonomic nervous system. The ganglionated plexi of the heart do not serve as a simple relay station but could modulate the autonomic interaction between the extrinsic and intrinsic cardiac autonomic system. Intrinsic cardiac autonomic nerve activity is an invariable trigger of paroxysmal atrial tachyarrhythmia, including atrial fibrillation. Although multiple studies have shown that ganglionated plexi play an important role in initiating atrial fibrillation, there is no consensus on a standardized protocol for selecting target sites and determining how ganglionated plexi ablation can best be accomplished. Recent clinical trials have demonstrated the feasibility and efficacy of ganglionated plexi ablation in addition to pulmonary vein isolation, but novel technologies and strategies are necessary to improve the current ablation techniques in managing patients with atrial fibrillation. This review focuses on the relationship between atrial ganglionated plexi and atrial fibrillation and the potential benefits and limitations of ganglionated plexi ablation in the management of atrial fibrillation.
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Affiliation(s)
- Eue-Keun Choi
- Seoul National University Hospital, Seoul, Republic of Korea
| | - Peng-Sheng Chen
- Indiana University School of Medicine, Indianapolis, Indiana
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24
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Fengsrud E, Wickbom A, Almroth H, Englund A, Ahlsson A. Total endoscopic ablation of patients with long-standing persistent atrial fibrillation: a randomized controlled study. Interact Cardiovasc Thorac Surg 2016; 23:292-8. [PMID: 27068249 DOI: 10.1093/icvts/ivw088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 03/04/2016] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Total endoscopic ablation of atrial fibrillation is an alternative to catheter ablation, but its clinical role needs further evaluation. The aim of this study was to compare total endoscopic ablation with rate control in patients with long-standing persistent atrial fibrillation and to examine the effect of endoscopic ablation on heart rhythm, symptoms, physical working capacity and myocardial function during 1 year of follow-up. METHODS In a prospective controlled study, 36 patients aged >50 years with symptomatic long-standing persistent atrial fibrillation were randomized to either total endoscopic ablation (n = 17, after two drop-outs before ablation n = 15) or rate control therapy (n = 19). In the ablation group, a box lesion encircling the pulmonary veins was performed, using temperature-controlled radiofrequency energy. Loop recorders were implanted in all patients. Echocardiography and quality-of-life assessment were performed at 6 and 12 months, and physical working capacity assessment at 6 months. RESULTS There was no mortality or thromboembolic event. In the control group, all patients were in permanent atrial fibrillation during 12 months of follow-up. In the ablation group, the proportion of patients in sinus rhythm without antiarrhythmic drugs was 12/15 (80%) at 12 months. The median freedom of atrial fibrillation at 3-12 months was 95% in the ablation group and the proportion of patients with an atrial fibrillation burden of <5% at 3-12 months was 8/15 (53%). The left ventricular ejection fraction increased during follow-up in the ablation group compared with the control group (from 53.7 ± 8.6 to 58.8 ± 6.5%, P = 0.003), combined with a reduction in the left atrial area (from 29.2 ± 5.5 to 27.2 ± 6.3 cm(2), P = 0.002). The physical working capacity increased in the ablation group compared with the control group (from 94 ± 21.4 to 102.9 ± 14.4%, P = 0.011). The subjective physical and mental capacity scale also improved during follow-up in the ablation group, but not in the control group (P = 0.003 and 0.018, respectively). CONCLUSIONS Total endoscopic ablation in patients with long-standing persistent atrial fibrillation significantly reduced atrial fibrillation burden 12 months after intervention compared with controls. The left ventricular function, physical working capacity and subjective physical and mental health were improved. These results need to be confirmed in larger randomized trials. CLINICALTRIALSGOV IDENTIFIER NCT00940056.
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Affiliation(s)
- Espen Fengsrud
- Department of Cardiology, Örebro University, Örebro, Sweden Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Anders Wickbom
- Department of Cardiothoracic and Vascular Surgery, Örebro University, Örebro, Sweden
| | - Henrik Almroth
- Department of Cardiology, Örebro University, Örebro, Sweden Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Anders Englund
- Faculty of Medicine and Health, Örebro University, Örebro, Sweden Arrhythmia Centre, South General Hospital, Stockholm, Sweden
| | - Anders Ahlsson
- Faculty of Medicine and Health, Örebro University, Örebro, Sweden Department of Cardiothoracic and Vascular Surgery, Örebro University, Örebro, Sweden
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25
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van Laar C, Geuzebroek GSC, Hofman FN, Van Putte BP. The totally thoracoscopic left atrial maze procedure for the treatment of atrial fibrillation. Multimed Man Cardiothorac Surg 2016; 2016:mmv043. [PMID: 26993056 DOI: 10.1093/mmcts/mmv043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 12/29/2015] [Indexed: 06/05/2023]
Abstract
The totally thoracoscopic left atrial maze (TT-maze) is a recent, minimally invasive surgical procedure for the treatment of atrial fibrillation, with promising results in terms of freedom from atrial fibrillation. The TT-maze consists of a bilateral, epicardial pulmonary vein isolation with the creation of a box using radiofrequency and exclusion of the left atrial appendage (LAA). In addition, the box is connected with the base of the LAA and furthermore with the mitral annulus with the so-called trigonum line. In this report, we describe our surgical approach and short-term results.
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Affiliation(s)
- Charlotte van Laar
- Department of Cardio-Thoracic Surgery, St Antonius Hospital, Nieuwegein, Netherlands
| | | | - Frederik N Hofman
- Department of Cardio-Thoracic Surgery, St Antonius Hospital, Nieuwegein, Netherlands
| | - Bart P Van Putte
- Department of Cardio-Thoracic Surgery, St Antonius Hospital, Nieuwegein, Netherlands
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26
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Madhavan M, Venkatachalam KL, Swale MJ, Desimone CV, Gard JJ, Johnson SB, Suddendorf SH, Mikell SB, Ladewig DJ, Nosbush TG, Danielsen AJ, Knudson M, Asirvatham SJ. Novel Percutaneous Epicardial Autonomic Modulation in the Canine for Atrial Fibrillation: Results of an Efficacy and Safety Study. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2016; 39:407-17. [PMID: 26854009 DOI: 10.1111/pace.12824] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/24/2015] [Accepted: 01/28/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND Endocardial ablation of atrial ganglionated plexi (GP) has been described for treatment of atrial fibrillation (AF). Our objective in this study was to develop percutaneous epicardial GP ablation in a canine model using novel energy sources and catheters. METHODS Phase 1: The efficacy of several modalities to ablate the GP was tested in an open chest canine model (n = 10). Phase 2: Percutaneous epicardial ablation of GP was done in six dogs using the most efficacious modality identified in phase 1 using two novel catheters. RESULTS Phase 1: Direct current (DC) in varying doses (blocking [7-12 μA], electroporation [300-500 μA], ablation [3,000-7,500 μA]), radiofrequency ablation (25-50 W), ultrasound (1.5 MHz), and alcohol (2-5 mL) injection were successful at 0/8, 4/12, 5/7, 3/8, 1/5, and 5/7 GP sites. DC (500-5,000 μA) along with alcohol irrigation was tested in phase 2. Phase 2: Percutaneous epicardial ablation of the right atrium, oblique sinus, vein of Marshall, and transverse sinus GP was successful in 5/6 dogs. One dog died of ventricular fibrillation during DC ablation at 5,000 μA. Programmed stimulation induced AF in six dogs, preablation and no atrial arrhythmia in three, flutter in one, and AF in one postablation. Heart rate, blood pressure, effective atrial refractory period, and local atrial electrogram amplitude did not change significantly postablation. Microscopic examination showed elimination of GP, and minimal injury to atrial myocardium. CONCLUSION Percutaneous epicardial ablation of GP using DC and novel catheters is safe and feasible and may be used as an adjunct to pulmonary vein isolation in the treatment of AF in order to minimize additional atrial myocardial ablation.
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Affiliation(s)
- Malini Madhavan
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
| | - K L Venkatachalam
- Cardiovascular Diseases, Department of Medicine, Mayo Clinic, Jacksonville, Florida.,Department of Surgical Research, Mayo Clinic, Rochester, Minnesota
| | | | | | | | - Susan B Johnson
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
| | - Scott H Suddendorf
- Department of Research Administrative Services, Mayo Clinic, Rochester, Minnesota
| | - Susan B Mikell
- Department of Research Administrative Services, Mayo Clinic, Rochester, Minnesota
| | - Dorothy J Ladewig
- Department of Research Administrative Services, Mayo Clinic, Rochester, Minnesota
| | | | | | - Mark Knudson
- Mayo Clinic, Rochester, Minnesota.,EnteroMedics, Inc, St. Paul, Minnesota
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27
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EDGERTON ZACHARY, PERINI ALESSANDROPAOLETTI, HORTON RODNEY, TRIVEDI CHINTAN, SANTANGELI PASQUALE, BAI RONG, GIANNI CAROLA, MOHANTY SANGHAMITRA, BURKHARDT JDAVID, GALLINGHOUSE GJOSEPH, SANCHEZ JAVIERE, BAILEY SHANE, LANE MAEGEN, DI BIASE LUIGI, SANTORO FRANCESCO, PRICE JUSTIN, NATALE ANDREA. Hybrid Procedure (Endo/Epicardial) versus Standard Manual Ablation in Patients Undergoing Ablation of Longstanding Persistent Atrial Fibrillation: Results from a Single Center. J Cardiovasc Electrophysiol 2016; 27:524-30. [DOI: 10.1111/jce.12926] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 12/21/2015] [Accepted: 01/05/2016] [Indexed: 11/26/2022]
Affiliation(s)
- ZACHARY EDGERTON
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | | | - RODNEY HORTON
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | - CHINTAN TRIVEDI
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | - PASQUALE SANTANGELI
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
- Hospital of the University of Pennsylvania; Pennsylvania USA
| | - RONG BAI
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
- Beijing Anzhen Hospital; Capital Medical University; Beijing China
| | - CAROLA GIANNI
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
- University of Milan; Milan Italy
| | - SANGHAMITRA MOHANTY
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | - J. DAVID BURKHARDT
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | | | - JAVIER E. SANCHEZ
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | - SHANE BAILEY
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | - MAEGEN LANE
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | - LUIGI DI BIASE
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
- University of Foggia; Foggia Italy
- Albert Einstein College of Medicine at Montefiore Hospital; New York USA
| | | | - JUSTIN PRICE
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
| | - ANDREA NATALE
- Texas Cardiac Arrhythmia Institute; St. David's Medical Center; Austin Texas USA
- Department of Internal Medicine; Dell Medical School; Austin Texas USA
- California Pacific Medical Center; San Francisco California USA
- Interventional Electrophysiology; Scripps Clinic; San Diego California USA
- Division of Cardiology; Stanford University; Palo Alto California USA
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28
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Kim HJ, Kim JS, Kim TS. Epicardial thoracoscopic ablation versus endocardial catheter ablation for management of atrial fibrillation: a systematic review and meta-analysis. Interact Cardiovasc Thorac Surg 2016; 22:729-37. [PMID: 26912577 DOI: 10.1093/icvts/ivw027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 01/08/2016] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES In the treatment of patients with atrial fibrillation (AF), the efficacy and safety of epicardial thoracoscopic ablation (TA) versus endocardial catheter ablation (CA) using radiofrequency energy remains unclear. This meta-analysis was performed to assess the efficacy and safety of each ablation technique using a pooled comparative analysis. METHODS Studies comparing the efficacy and safety of TA and CA were identified by searching electronic databases. Those that reported patients' freedom from atrial arrhythmia and significant side effects were included. RESULTS Three randomized controlled trials (RCTs) and two retrospective cohort studies with a total of 587 patients were included in the meta-analysis (273 patients underwent TA and 314 patients underwent CA). The proportion of patients who were free of atrial arrhythmia without antiarrhythmic drugs during 12 months of follow-up was significantly higher after TA than after CA in the RCTs [P < 0.001; relative risk (RR), 1.77; 95% confidence interval (CI), 1.34-2.32] and in the retrospective cohort studies (P = 0.010; RR, 1.68; 95% CI, 1.12-2.51). The incidence of significant side effects during the post-procedural period was significantly higher in the TA group than in the CA group in both the RCT (P = 0.007; RR, 7.23; 95% CI, 1.71-30.49) and the retrospective cohort studies (P = 0.020; RR, 4.39; 95% CI, 1.33-14.46). CONCLUSIONS Based on the available data, TA was found to be more effective than CA in achieving freedom from atrial arrhythmia; however, TA had a higher rate of immediate post-procedural complications than CA.
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Affiliation(s)
- Hyun Jung Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Jin Suk Kim
- Department of Cardiology, Ansan Hospital, Korea University Medical Center, Ansan, Republic of Korea
| | - Tae Sik Kim
- Department of Thoracic and Cardiovascular Surgery, Anam Hospital, Korea University Medical Center, Seoul, Republic of Korea
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29
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Probst J, Jidéus L, Blomström P, Zemgulis V, Wassberg E, Lönnerholm S, Malmborg H, Blomström Lundqvist C. Thoracoscopic epicardial left atrial ablation in symptomatic patients with atrial fibrillation. Europace 2016; 18:1538-1544. [DOI: 10.1093/europace/euv438] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 12/07/2015] [Indexed: 12/29/2022] Open
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30
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Compier MG, Braun J, Tjon A, Zeppenfeld K, Klautz RJM, Schalij MJ, Trines SA. Outcome of stand-alone thoracoscopic epicardial left atrial posterior box isolation with bipolar radiofrequency energy for longstanding persistent atrial fibrillation. Neth Heart J 2016; 24:143-51. [PMID: 26689926 PMCID: PMC4722013 DOI: 10.1007/s12471-015-0785-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Introduction Catheter ablation of longstanding (> 1 year) persistent atrial fibrillation (AF) is associated with poor outcome. This might be due to remodelling and fibrosis formation, mainly located in the posterior left atrial (LA) wall. Therefore, we adopted a thoracoscopic epicardial box isolation of the posterior left atrium using bipolar RF energy with intraoperative testing of conduction block. Methods and results Bilateral thoracoscopic box isolation was performed with a bipolar RF clamp. Entrance block was defined as absence of a conducted electrogram within the box, while exit block was confirmed by pacing at 10.0 V/2 ms. Ablation outcome was evaluated after 3, 6, 12 and 24 months with 12-lead ECGs and 24-hour Holter recordings. Twenty-five consecutive patients were included (58 ± 7 years, persistent AF duration 1.8 ± 0.9 years). Entrance block was achieved in all patients and exit block confirmed if sinus rhythm was achieved. After 17 ± 7 months, 76 % of the patients (n = 19) were free of AF recurrence. One patient died within 1 month and was considered an ablation failure. Four patients with AF recurrences regained sinus rhythm with additional catheter ablation or antiarrhythmic drugs. Conclusions Treatment of longstanding persistent AF with thoracoscopic epicardial LA posterior box isolation using bipolar RF energy with intraoperative testing of conduction block is feasible and highly effective.
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Affiliation(s)
- M G Compier
- Department of Cardiology, Leiden University Medical Center, PO Box 9600, Leiden, The Netherlands
| | - J Braun
- Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - A Tjon
- Department of Cardio-thoracic Surgery, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - K Zeppenfeld
- Department of Cardiology, Leiden University Medical Center, PO Box 9600, Leiden, The Netherlands
| | - R J M Klautz
- Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - M J Schalij
- Department of Cardiology, Leiden University Medical Center, PO Box 9600, Leiden, The Netherlands
| | - S A Trines
- Department of Cardiology, Leiden University Medical Center, PO Box 9600, Leiden, The Netherlands.
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31
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Kim IS, Yang PS, Kim TH, Park J, Park JK, Uhm JS, Joung B, Lee MH, Pak HN. Clinical Significance of Additional Ablation of Atrial Premature Beats after Catheter Ablation for Atrial Fibrillation. Yonsei Med J 2016; 57:72-80. [PMID: 26632385 PMCID: PMC4696975 DOI: 10.3349/ymj.2016.57.1.72] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 03/28/2015] [Accepted: 04/16/2015] [Indexed: 11/27/2022] Open
Abstract
PURPOSE The clinical significance of post-procedural atrial premature beats immediately after catheter ablation for atrial fibrillation (AF) has not been clearly determined. We hypothesized that the provocation of immediate recurrence of atrial premature beats (IRAPB) and additional ablation improves the clinical outcome of AF ablation. MATERIALS AND METHODS We enrolled 200 patients with AF (76.5% males; 57.4±11.1 years old; 64.3% paroxysmal AF) who underwent catheter ablation. Post-procedure IRAPB was defined as frequent atrial premature beats (≥6/min) under isoproterenol infusion (5 μg/min), monitored for 10 min after internal cardioversion, and we ablated mappable IRAPBs. Post-procedural IRAPB provocations were conducted in 100 patients. We compared the patients who showed IRAPB with those who did not. We also compared the IRAPB provocation group with 100 age-, sex-, and AF-type-matched patients who completed ablation without provocation (No-Test group). RESULTS 1) Among the post-procedural IRAPB provocation group, 33% showed IRAPB and required additional ablation with a longer procedure time (p=0.001) than those without IRAPB, without increasing the complication rate. 2) During 18.0±6.6 months of follow-up, the patients who showed IRAPB had a worse clinical recurrence rate than those who did not (27.3% vs. 9.0%; p=0.016), in spite of additional IRAPB ablation. 3) However, the clinical recurrence rate was significantly lower in the IRAPB provocation group (15.0%) than in the No-Test group (28.0%; p=0.025) without lengthening of the procedure time or raising complication rate. CONCLUSION The presence of post-procedural IRAPB was associated with a higher recurrence rate after AF ablation. However, IRAPB provocation and additional ablation might facilitate a better clinical outcome. A further prospective randomized study is warranted.
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Affiliation(s)
- In Soo Kim
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea
| | - Pil Sung Yang
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea
| | - Tae Hoon Kim
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea
| | - Junbeum Park
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea
| | - Jin Kyu Park
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea
| | - Jae Sun Uhm
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea
| | - Boyoung Joung
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea
| | - Moon Hyoung Lee
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea
| | - Hui Nam Pak
- Division of Cardiology, Department of Internal Medicine, Yonsei University Health System, Seoul, Korea.
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32
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Weimar T. Chirurgische Therapie des Vorhofflimmerns. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2015. [DOI: 10.1007/s00398-015-0041-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abo-Salem E, Lockwood D, Boersma L, Deneke T, Pison L, Paone RF, Nugent KM. Surgical Treatment of Atrial Fibrillation. J Cardiovasc Electrophysiol 2015; 26:1027-1037. [PMID: 26075595 DOI: 10.1111/jce.12731] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/25/2015] [Accepted: 05/27/2015] [Indexed: 11/30/2022]
Abstract
Atrial fibrillation (AF) is the most common chronic arrhythmia in the adult population. Ablation lines have largely replaced the historical and challenging cut and sew techniques. Surgical ablation of AF is commonly performed in cases with other indications for cardiac surgery and less commonly as a stand-alone therapy. Pulmonary vein isolation is the cornerstone of this procedure. Extended left atrial ablation lines may increase efficacy in cases with longstanding persistent or permanent AF. Additional efficacy by adding right atrial ablation is controversial but is often performed in cases undergoing right atrial or atrial septal surgery. Left atrial volume reduction is recommended in cases with large left atria and AF undergoing another cardiac surgery. Arrhythmia recurrence is not uncommon after surgical ablation of AF and varies among studies due to heterogeneity in patient population, lesion set and endpoints. Freedom from AF recurrence was 65-87% at 12 months and 58-70% at 2 years follow-up. Long-term monitoring is recommended due to an increased prevalence of asymptomatic recurrences. The strongest predictors of AF recurrence are longstanding or persistent AF and a large left atrium. The most common mechanisms of recurrence are pulmonary vein reconnection, nonpulmonary vein triggers, and gaps in the ablation lines. About 20% of atrial tachyarrhythmia recurrences are atrial flutter or atrial tachycardia. There are not enough data in the surgical literature to support withdrawal of anticoagulation after surgical AF ablation. Patients selected for stand-alone surgical ablation usually have low risk profiles and low postoperative mortality rates (0.2%).
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Affiliation(s)
- Elsayed Abo-Salem
- Division of Cardiovascular Health and Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Deborah Lockwood
- Cardiovascular Section, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Lucas Boersma
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Thomas Deneke
- Department of Cardiology, BG-Kliniken Bergmannsheil, University of Bochum, Bochum, Germany
| | - Laurent Pison
- Department of Cardiology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Ralph F Paone
- Department of Surgery, Texas Tech University HSC, Lubbock, Texas, USA
| | - Kenneth M Nugent
- Division of Pulmonary and Critical Care Medicine, Texas Tech University HSC, Lubbock, Texas, USA
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34
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Padanilam BJ, Foreman J, Prystowsky EN. Patients with minimal atrial fibrillation events should not undergo concomitant atrial ablation during open heart procedures. Card Electrophysiol Clin 2015; 7:395-401. [PMID: 26304518 DOI: 10.1016/j.ccep.2015.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Several randomized controlled trials and meta-analyses have demonstrated improved freedom from atrial fibrillation with intraoperative atrial ablation. However, the increased bypass time and the risk for ablation-related complications should be weighed against the benefits in the decision-making. It is important to establish reasonable criteria to define candidates for surgical ablation. Furthermore, the efficacy and short- and long-term risks related to surgical ablation need to be considered. This article reviews the data on surgical ablation of atrial fibrillation as it pertains to these important issues. As shown the evidence does not support surgical ablation at the time of coronary artery bypass graft in some patients.
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Affiliation(s)
- Benzy J Padanilam
- St. Vincent Medical Group, St. Vincent Hospital, Indianapolis, IN, USA.
| | - Jason Foreman
- St. Vincent Medical Group, St. Vincent Hospital, Indianapolis, IN, USA
| | - Eric N Prystowsky
- St. Vincent Medical Group, St. Vincent Hospital, Indianapolis, IN, USA
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35
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Fengsrud E, Wickbom A, Ahlsson A. Total endoscopic ablation of atrial fibrillation. Multimed Man Cardiothorac Surg 2015; 2015:mmv010. [PMID: 26079408 DOI: 10.1093/mmcts/mmv010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 05/27/2015] [Indexed: 06/04/2023]
Abstract
Total endoscopic ablation of atrial fibrillation is a treatment option in symptomatic patients after unsuccessful catheter ablation or when catheter ablation is considered inappropriate. We describe a technique of endoscopic ablation of the left atrium using temperature-controlled unipolar or bipolar radiofrequency. A left atrial box lesion encircling the pulmonary veins is created using three ports in the right hemithorax. The technical aspects and preliminary results of the procedure are discussed.
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Affiliation(s)
- Espen Fengsrud
- Department of Cardiology, Örebro University, Örebro, Sweden Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Anders Wickbom
- Department of Cardiothoracic and Vascular Surgery, Örebro University, Örebro, Sweden
| | - Anders Ahlsson
- Faculty of Medicine and Health, Örebro University, Örebro, Sweden Department of Cardiothoracic and Vascular Surgery, Örebro University, Örebro, Sweden
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36
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Surgical and Concomitant Epicardial-Endocardial (Hybrid) Ablation of Persistent and Long-Standing Persistent Atrial Fibrillation. Curr Probl Cardiol 2015; 40:245-67. [DOI: 10.1016/j.cpcardiol.2015.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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37
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Lim PB, Kanagaratnam P. The left atrial neural network: more complicated than we thought? Future Cardiol 2015; 11:251-4. [PMID: 26021626 DOI: 10.2217/fca.15.21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Phang Boon Lim
- 1Imperial College Healthcare NHS Trust and Imperial College London, Hammersmith Hospital, Du Cane Road, London, W12 0HS, UK
| | - Prapa Kanagaratnam
- 1Imperial College Healthcare NHS Trust and Imperial College London, Hammersmith Hospital, Du Cane Road, London, W12 0HS, UK
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38
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Park J, Pak HN. Elimination Of Triggers Without An Additional Substrate Modification Is Not Sufficient In Patients With Persistent Atrial Fibrillation. J Atr Fibrillation 2015; 7:1207. [PMID: 27957155 DOI: 10.4022/jafib.1207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 01/30/2015] [Accepted: 01/30/2015] [Indexed: 11/10/2022]
Abstract
Atrial fibrillation (AF) is a multifactorial disease with complex pathophysiology. Although restoring sinus rhythm delays the progression of atrial remodeling, non-pharmacologic intervention, such as radiofrequency catheter ablation (RFCA), should be done based on the background pathophysiology of the disease. While circumferential pulmonary vein isolation (CPVI) has been known to be the cornerstone of AF catheter ablation, a clinical recurrence rate after CPVI is high in patients with persistent AF (PeAF). Step-wise linear ablation, complex fractionate atrial electrogram (CFAE)-guided ablation, rotor ablation, ganglionate plexus ablation, and left atrial appendage isolation may improve the ablation success rate after CPVI. But, there are still substantial AF recurrences after such liberal atrial substrate ablation, and current ablation techniques regarding substrate modification still have limitations. Therefore, more understanding about AF pathophysiology and early precise intervention may improve clinical outcome of AF management. Keeping in mind "more touch, more scar," operators should generate most efficient substrate modification to achieve better long-term clinical outcome.
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Affiliation(s)
- Junbeom Park
- Yonsei University Health System, Seoul, Republic of Korea
| | - Hui-Nam Pak
- Yonsei University Health System, Seoul, Republic of Korea
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39
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Ramlawi B, Bedeir K. Surgical options in atrial fibrillation. J Thorac Dis 2015; 7:204-13. [PMID: 25713738 DOI: 10.3978/j.issn.2072-1439.2014.12.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 11/14/2014] [Indexed: 11/14/2022]
Abstract
Atrial fibrillation (AF) is not benign and its prevalence is increasing. The two main goals in management of atrial fibrillation are to optimize hemodynamics through rate or rhythm control and to prevent systemic thrombo-embolism. To date, these two goals are still sub-optimally achieved, raising the need for alternative methods and strategies both pharmacologically and through interventions. In this review, we discuss surgical strategies of achieving both goals with insights on the evolution and potential future of these strategies.
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Affiliation(s)
- Basel Ramlawi
- Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Kareem Bedeir
- Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
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40
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Katritsis GD, Katritsis DG. Cardiac Autonomic Denervation for Ablation of Atrial Fibrillation. Arrhythm Electrophysiol Rev 2014; 3:113-5. [PMID: 26835076 DOI: 10.15420/aer.2014.3.2.113] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 07/21/2014] [Indexed: 11/04/2022] Open
Abstract
The influence of the autonomic nervous system (ANS) on triggering and perpetuation of atrial fibrillation (AF) is well established. Ganglionated plexi (GP) ablation achieves autonomic denervation by affecting both the parasympathetic and sympathetic components of the ANS. GP ablation can be accomplished endocardially or epicardially, i.e. during the maze procedure or thoracoscopic approaches. Recent evidence indicates that anatomic GP ablation at relevant atrial sites appears to be safe and improves the results of pulmonary vein isolation in patients with paroxysmal and persistent AF.
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Affiliation(s)
- George D Katritsis
- Academic Foundation Trainee, John Radcliffe Hospital, The Oxford University Clinical Academic Graduate School, Oxford, UK
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41
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K Gehi A, C Kiser A, Mounsey JP. Atrial Fibrillation Ablation by the Epicardial Approach. J Atr Fibrillation 2014; 6:979. [PMID: 27957039 DOI: 10.4022/jafib.979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/06/2014] [Accepted: 01/13/2014] [Indexed: 11/10/2022]
Abstract
Catheter ablation is an effective treatment for atrial fibrillation (AF). However, over long-term follow-up, it is becoming clear that AF often recurs and repeat ablation is required. With the goal of improving efficacy, particularly in those patients with risk factors for poor outcomes using a standard endocardial ablation technique, surgical epicardial ablation has emerged as an alternative methodology. Since its advent in the 1980s, surgical ablation techniques have continued to evolve. New ablation tools make a minimally invasive surgical approach possible. And most recently, we have seen the development of a hybrid (epicardial and endocardial) approach to AF ablation, which can draw upon the advantages of both options.
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Affiliation(s)
- Anil K Gehi
- Division of Cardiology, Department of Medicine, University of North Carolina at Chapel Hill
| | - Andy C Kiser
- Division of Cardiothoracic Surgery, Department of Surgery, University of North Carolina at Chapel Hill
| | - J Paul Mounsey
- Division of Cardiology, Department of Medicine, University of North Carolina at Chapel Hill
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42
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Kearney K, Stephenson R, Phan K, Chan WY, Huang MY, Yan TD. A systematic review of surgical ablation versus catheter ablation for atrial fibrillation. Ann Cardiothorac Surg 2014; 3:15-29. [PMID: 24516794 DOI: 10.3978/j.issn.2225-319x.2014.01.03] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 01/08/2014] [Indexed: 11/14/2022]
Abstract
BACKGROUND Atrial fibrillation (AF) is an increasingly prevalent condition in the ageing population, with significantly associated morbidity and mortality. Surgical and catheter ablative strategies both aim to reduce mortality and morbidity through freedom from AF. This review consolidates all currently available comparative data to evaluate these two interventions. METHODS A systematic search was conducted across MEDLINE, PubMed, Embase, Cochrane Central Register of Controlled Trials and the Cochrane Database of Systematic Reviews from January 2000 until August 2013. All studies were critically appraised and only those directly comparing surgical and catheter ablation were included. RESULTS Seven studies were deemed suitable for analysis according to the inclusion criteria. Freedom from AF was significantly higher in the surgical ablation group versus the catheter ablation group at 6-month, 12-month and study endpoint follow-up periods. Subgroup analysis demonstrated similar trends, with higher freedom from AF in the surgical ablation group for paroxysmal AF patients. The incidence of pacemaker implantation was higher, while no difference in stroke or cardiac tamponade was demonstrated for the surgical versus catheter ablation groups. CONCLUSIONS Current evidence suggests that epicardial ablative strategies are associated with higher freedom from AF, higher pacemaker implantation rates and comparable neurological complications and cardiac tamponade incidence to catheter ablative treatment. Other complications and risks were poorly reported, which warrants further randomized controlled trials (RCTs) of adequate power and follow-up duration.
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Affiliation(s)
- Katherine Kearney
- The Collaborative Research (CORE) Group, Macquarie University, Sydney, Australia
| | - Rowan Stephenson
- St Vincent's Hospital, Sydney, Australia, Royal Prince Alfred Hospital, University of Sydney, Sydney, Australia
| | - Kevin Phan
- The Collaborative Research (CORE) Group, Macquarie University, Sydney, Australia
| | - Wei Yen Chan
- University of Western Sydney, Royal Prince Alfred Hospital, University of Sydney, Sydney, Australia
| | - Min Yin Huang
- University of Western Sydney, Royal Prince Alfred Hospital, University of Sydney, Sydney, Australia
| | - Tristan D Yan
- The Collaborative Research (CORE) Group, Macquarie University, Sydney, Australia ; ; Department of Cardiothoracic Surgery, Royal Prince Alfred Hospital, University of Sydney, Sydney, Australia
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43
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Zheng S, Zeng Y, Li Y, Han J, Zhang H, Meng X. Active Ganglionated Plexi Is a Predictor of Atrial Fibrillation Recurrence After Minimally Invasive Surgical Ablation. J Card Surg 2014; 29:279-85. [PMID: 24517359 DOI: 10.1111/jocs.12299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shuai Zheng
- Department of Cardiac Surgery; Atrial Fibrillation Center; Beijing Anzhen Hospital; Capital Medical University; Beijing China
| | - Yaping Zeng
- Department of Cardiac Surgery; Atrial Fibrillation Center; Beijing Anzhen Hospital; Capital Medical University; Beijing China
| | - Yan Li
- Department of Cardiac Surgery; Atrial Fibrillation Center; Beijing Anzhen Hospital; Capital Medical University; Beijing China
| | - Jie Han
- Department of Cardiac Surgery; Atrial Fibrillation Center; Beijing Anzhen Hospital; Capital Medical University; Beijing China
| | - Haibo Zhang
- Department of Cardiac Surgery; Atrial Fibrillation Center; Beijing Anzhen Hospital; Capital Medical University; Beijing China
| | - Xu Meng
- Department of Cardiac Surgery; Atrial Fibrillation Center; Beijing Anzhen Hospital; Capital Medical University; Beijing China
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44
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Kosiuk Md J, Pokushalov Md Phd E, Hilbert Md S, Hindricks Md G, Bollmann Md PhD A, S Steinberg Md J. The Role of Renal Sympathetic Denervation in Atrial Fibrillation. J Atr Fibrillation 2014; 6:987. [PMID: 27957040 PMCID: PMC4956128 DOI: 10.4022/jafib.987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 01/03/2014] [Accepted: 01/04/2014] [Indexed: 11/10/2022]
Abstract
Endocardial catheter ablation is a widely used alternative for the treatment of atrial fibrillation (AF). Despite technical improvements, and increased understanding of mechanism, and acquired technical experience over many years, the results are not yet optimal. This results in an ongoing search for new therapeutic approaches. Because cardiac sympathetic drive is potentially responsible for triggering and sustaining AF, modulation of sympathetic tone has been proposed as a viable treatment objective. The early attempts to test this concept were limited by nature=highly intrusive techniques but new approaches and targets have been recently introduced. Specifically, renal nerve ablation has been introduced and the first attempts to employ this technique for treatment of cardiac arrhythmias give as a promise of new therapeutic avenues in near future. This review focuses on the possible role of renal denervation in treatment of atrial fibrillation, the contemporary evidence supporting this approach, and the ongoing trials to establish its therapeutic role.
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Affiliation(s)
- Jedrzej Kosiuk Md
- Department of Electrophysiology, Heart Center Leipzig, Leipzig, Germany
| | | | | | | | | | - Jonathan S Steinberg Md
- Arrhythmia Institute, The Valley Health System and the Mt. Sinai School of Medicine, New York, NY, USA
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45
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Pinho-Gomes AC, Amorim MJ, Oliveira SM, Leite-Moreira AF. Surgical treatment of atrial fibrillation: an updated review. Eur J Cardiothorac Surg 2014; 46:167-78. [PMID: 24446472 DOI: 10.1093/ejcts/ezt584] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The first Cox-maze procedure was performed in 1987, demonstrating the feasibility of a non-pharmacological treatment for atrial fibrillation (AF). Since then, surgery for AF has changed over time, in parallel with technological advances. Replacement of surgical incisions with linear ablation lines made a previously cumbersome procedure accessible to most surgeons, without compromising success. On the other hand, new ablation technologies paved the way for the development of minimally invasive surgery, which may potentially extend the scope of surgery to patients who would otherwise be deemed unsuitable. Nonetheless, literature on minimally invasive surgery is still scarce and randomized clinical trials currently under way are expected to shed light on some controversial issues. Moreover, successful AF treatment will probably rely on close collaboration between surgery and electrophysiology. Indeed, the hybrid procedure, though still in its very beginning, seems to combine the best of catheter and surgical ablation. However, further studies are warranted to determine the effectiveness of this promising strategy, especially in patients with persistent and longstanding persistent AF. Better understanding of AF pathophysiology as well as more accurate preoperative localization of AF triggers will bring about the possibility of tailoring specific lesion sets and ablation modalities to individual patients. This, in turn, will increase recovery and maintenance of sinus rhythm, with significant benefits in long-term outcomes.
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Affiliation(s)
- Ana C Pinho-Gomes
- Department of Physiology and Cardiothoracic Surgery, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Mário J Amorim
- Department of Physiology and Cardiothoracic Surgery, Faculdade de Medicina, Universidade do Porto, Porto, Portugal Department of Cardiothoracic Surgery, Centro Hospitalar São João, EPE, Porto, Portugal
| | - Sílvia M Oliveira
- Department of Physiology and Cardiothoracic Surgery, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Adelino F Leite-Moreira
- Department of Physiology and Cardiothoracic Surgery, Faculdade de Medicina, Universidade do Porto, Porto, Portugal Department of Cardiothoracic Surgery, Centro Hospitalar São João, EPE, Porto, Portugal
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Hybrid surgical and catheter treatment for atrial fibrillation. ISRN CARDIOLOGY 2013; 2013:920635. [PMID: 24455303 PMCID: PMC3876832 DOI: 10.1155/2013/920635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 11/19/2013] [Indexed: 11/18/2022]
Abstract
Advances in surgery for atrial fibrillation from cut and sew technique to thoracoscopy and new energy source have enabled minimally invasive approach which avoids median sternotomy and cardiopulmonary bypass. However, minimally invasive approach is unable to match the outcome of classic surgical technique due to difficulty in creating some of linear ablation lines. Hybrid procedure using catheter mapping and ablation in addition to minimally invasive surgical ablation has gained interest to combine the advantages of both procedures. No large study has been conducted to date comparing this new technique to other existing treatments. The aim of this paper is to review the data on hybrid procedure for atrial fibrillation and assess its early outcome and efficacy.
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JOHANSSON BIRGITTAI, VÄÄRT OSKAR, EDVARDSSON NILS, NYSTRÖM BRITTA, SCHERSTÉN HENRIK, KARLSSON THOMAS, BERGLIN EVA. Low Mortality and Low Rate of Perceived and Documented Arrhythmias after Cox Maze III Surgery for Atrial Fibrillation. Pacing Clin Electrophysiol 2013; 37:147-56. [DOI: 10.1111/pace.12286] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 08/22/2013] [Accepted: 09/02/2013] [Indexed: 11/29/2022]
Affiliation(s)
| | - OSKAR VÄÄRT
- Department of Cardiothoracic Surgery; Sahlgrenska University Hospital
| | | | - BRITTA NYSTRÖM
- Department of Cardiology; Sahlgrenska University Hospital; Gothenburg Sweden
| | - HENRIK SCHERSTÉN
- Department of Cardiothoracic Surgery; Sahlgrenska University Hospital
| | - THOMAS KARLSSON
- Department of Cardiology; Sahlgrenska University Hospital; Gothenburg Sweden
| | - EVA BERGLIN
- Department of Cardiothoracic Surgery; Sahlgrenska University Hospital
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Long-term results of a minimally invasive surgical pulmonary vein isolation and ganglionic plexi ablation for atrial fibrillation. PLoS One 2013; 8:e79755. [PMID: 24244556 PMCID: PMC3823568 DOI: 10.1371/journal.pone.0079755] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 09/26/2013] [Indexed: 11/19/2022] Open
Abstract
Background Ganglionated plexi (GP) ablation has been become an adjunct to pulmonary vein isolation (PVI). This study describes the long-term results of minimally invasive surgical PVI, ablation of GPs, and exclusion of the left atrial appendage for atrial fibrillation (AF). Methods Long-term follow-up of 55 months was performed in 139 consecutive patients (age 58.3±20.8 years) with symptomatic, drug-refractory lone AF who underwent minimally invasive surgical PVI, GPs ablation, and exclusion of the left atrial appendage. Success was defined as freedom from AF, atrial flutter, or atrial tachycardia off antiarrhythmic drugs. Results AF was paroxysmal in 77.7%, persistent in 12.2% and long-standing persistent in 10.1%. Single-procedure success rate was 71.7%, 59.4% and 46.6% at 12, 24 and 60 months respectively. Single-procedure success rate was 72.9%, 62.6% and 51.8% for paroxysmal AF, 64.7%, 35.3%, and 28.2% for persistent AF, 71.4%, 64.3% and 28.6% for long-standing persistent AF at 12, 24 and 60 months respectively. Duration of AF>24 months (hazard ratio [HR]: 3.09, 95% confidence interval [CI]: 1.51 to 6.32; p = 0.002), left atrial diameter≥40 mm (HR: 4.03, 95% CI: 1.88 to 8.65; p<0.001), early recurrence of AF (HR: 4.66, 95% CI: 2.25 to 9.63; p<0.001) independently predicted long-term recurrence of AF. There was no procedure-related death. One patient converted to median sternotomy because of uncontrolled bleeding. Two patients underwent perioperative cerebrovascular events. Conclusions At nearly 5-year of clinical follow-up, single-procedure success rate of minimally invasive surgical PVI with GP ablation was 51.8% for paroxysmal AF, 28.2% for persistent AF, 28.6% for long-standing persistent AF after initial procedure. Patients with AF duration≤24 months, left atrial diameter<40 mm and no early recurrence of AF, had favorable outcomes.
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Sohns C, Karim R, Harrison J, Arujuna A, Linton N, Sennett R, Lambert H, Leo G, Williams S, Razavi R, Wright M, Schaeffter T, O'Neill M, Rhode K. Quantitative magnetic resonance imaging analysis of the relationship between contact force and left atrial scar formation after catheter ablation of atrial fibrillation. J Cardiovasc Electrophysiol 2013; 25:138-45. [PMID: 24118197 DOI: 10.1111/jce.12298] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 09/15/2013] [Accepted: 09/20/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Catheter contact force (CF) is an important determinant of radiofrequency (RF) lesion quality during pulmonary vein isolation (PVI). Late gadolinium enhancement (LGE) magnetic resonance imaging (MRI) allows good visualization of ablation lesions. OBJECTIVE This study describes a new technique to examine the relationship between CF during RF delivery and LGE signal intensity (SI) following PVI. METHODS Six patients underwent PVI for paroxysmal AF using a CF-sensing catheter and following preprocedural MRI. During ablation, CF-time integral (FTI) and position was documented for each RF application. All patients underwent repeat LGE MRI 3 months later. The LGE SIs were projected onto a MRI-derived 3-dimensional left atrial (LA) shell and a CF map was generated on the same shell. The entire LA surface was divided into 5 mm(2) segments. Force and LGE maps were fused and compared for each 5 mm(2) zone. An effective lesion was defined when MRI-defined scar occupied >90% of a 5 mm(2) analysis zone. RESULTS Acute PVI was achieved in 100%. Two hundred sixty-eight RF lesions were tagged on the LA shells and given a lesion-specific FTI. Increasing FTI correlated with increased LGE SI, which was greater when the FTI was > 1,200 gs. Below an FTI of 1,200 gs, an increment in the FTI resulted in only a small increment in scar, whereas above 1,200 gs an increment in the FTI resulted in a large change of scar. CONCLUSION There is a correlation between FTI and LGE SI in MRI following AF ablation. Real-time FTI maps are feasible and may prevent inadequate lesion formation.
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Affiliation(s)
- Christian Sohns
- Division of Imaging Sciences and Biomedical Engineering, King's College London, London, UK; Department of Cardiology and Pneumology, Heart Center, Georg-August-University of Göttingen, Göttingen, Germany
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De Maat GE, Pozzoli A, Scholten MF, Hillege HL, Van Gelder IC, Alfieri OR, Benussi S, Mariani MA. Surgical Minimally Invasive Pulmonary Vein Isolation for Lone Atrial Fibrillation. INNOVATIONS-TECHNOLOGY AND TECHNIQUES IN CARDIOTHORACIC AND VASCULAR SURGERY 2013; 8:410-5. [DOI: 10.1097/imi.0000000000000029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Objective Minimally invasive surgical pulmonary vein isolation (SMI-PVI) is an emerging therapy for the treatment of symptomatic drug-refractory atrial fibrillation (AF). Nevertheless, the midterm and long-term results of SMI-PVI remain unknown. The aim of this retrospective multicenter study was to report on midterm efficacy and safety of SMI-PVI. Methods The study design was retrospective, multicentric, and observational. From July 2005 to November 2011, a total of 86 patients with drug-refractory paroxysmal or persistent AF underwent SMI-PVI in three centers. Patients were eligible for SMI-PVI if they had symptomatic, drug-refractory AF or after failed transcatheter pulmonary vein isolation. Success was defined as absence of AF on 24- or 96-hour Holter monitoring during follow-up, in the absence of antiarrhythmic drugs (AADs). Results The mean ± SD age was 54 ± 11 years, and 78% were men. The median AF duration was 30 months (range, 2–203); paroxysmal AF was present in 86% of the patients, persistent in 14%. Fifteen patients (17%) underwent previous transcatheter ablations. After a median follow-up of 24 months (range, 6–78), 72% of all patients were free from atrial arrhythmias without the use of AADs. With AADs, this was 83%. Major perioperative adverse events occurred in 7 patients (8%). Conclusions This retrospective multicenter study shows that SMI-PVI is effective at a median follow-up of 24 months for the treatment of mostly paroxysmal drug-refractory AF. Perioperative adverse events do remain a point of caution.
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Affiliation(s)
- Gijs E. De Maat
- Department of Cardio-Thoracic Surgery University Medical Center Groningen, Groningen, The Netherlands
- Department of Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Alberto Pozzoli
- Department of Cardio-Thoracic Surgery University Medical Center Groningen, Groningen, The Netherlands
- Cardiac Surgery Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Marcoen F. Scholten
- Department of Cardiology, Medisch Spectrum Twente, Enschede, The Netherlands
| | - Hans L. Hillege
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Isabelle C. Van Gelder
- Department of Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | | | - Stefano Benussi
- Cardiac Surgery Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Massimo A. Mariani
- Department of Cardio-Thoracic Surgery University Medical Center Groningen, Groningen, The Netherlands
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