1
|
Landra F, Nesti M, Garibaldi S, Mirizzi G, Startari U, Panchetti L, Piacenti M, Taddeucci S, Formichi BA, Stefani M, Galiberti S, Lionetti V, Solinas P, Levantesi BM, Italia C, Rossi A. A proposed index of myocardial staining for vein of Marshall ethanol infusion: an Italian single-center experience. J Interv Card Electrophysiol 2024; 67:1267-1277. [PMID: 38206450 PMCID: PMC11288988 DOI: 10.1007/s10840-023-01732-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
BACKGROUND Mitral isthmus (MI) conduction block is a fundamental step in anatomical approach treatment for persistent atrial fibrillation (PeAF). However, MI block is hardly achievable with endocardial ablation only. Retrograde ethanol infusion (EI) into the vein of Marshall (VOM) facilitates MI block. Fluorographic myocardial staining (MS) during VOM-EI could be helpful in predicting procedural alcoholization outcome even if its role is qualitatively assessed in the routine. The aim was to quantitatively assess MS during VOM-EI and to evaluate its association with MI block achievement. METHODS Consecutive patients undergoing catheter ablation for PeAF at Fondazione Toscana Gabriele Monasterio (Pisa, Italy) from February 2022 to May 2023 were considered. Patients with identifiable VOM were included. A proposed index of MS (MSI) was retrospectively calculated in each included patient. Correlation of MSI with low-voltage zones (LVZ) extension after VOM-EI and its association with MI block achievement were assessed. RESULTS In total, 42 patients out of 49 (85.8%) had an identifiable VOM. MI block was successfully achieved in 35 patients out of 42 (83.3%). MSI was significantly associated with the occurrence of MI block (OR 1.24 (1.03-1.48); p = 0.022). A higher MSI resulted in reduced ablation time (p = 0.014) and reduced radiofrequency applications (p = 0.002) to obtain MI block. MSI was also associated with MI block obtained by endocardial ablation only (OR 1.07 (1.02-1.13); p = 0.002). MSI was highly correlated with newly formed LVZ extension (r = 0.776; p = 0.001). CONCLUSIONS In our study cohort, optimal MSI predicts MI block and facilitates its achievement with endocardial ablation only.
Collapse
Affiliation(s)
- Federico Landra
- Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Viale Bracci 1, Siena, Italy.
| | | | | | | | | | | | | | - Simone Taddeucci
- Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Viale Bracci 1, Siena, Italy
| | | | | | | | | | | | | | | | - Andrea Rossi
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| |
Collapse
|
2
|
Cunn G, Patel A, Coleman K, Dulmovits E, Skipitaris N, Epstein L, Mountantonakis S, Beldner S. Vein of Marshall ethanol infusion for recurrent atrial fibrillation in patients with durably isolated pulmonary veins. J Interv Card Electrophysiol 2024:10.1007/s10840-024-01877-w. [PMID: 39078545 DOI: 10.1007/s10840-024-01877-w] [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: 02/27/2024] [Accepted: 07/09/2024] [Indexed: 07/31/2024]
Abstract
BACKGROUND Vein of Marshall (VoM) ethanol ablation has a proven benefit in patients with persistent atrial fibrillation (AF) undergoing index procedure; however, its role in repeat ablation is unknown. We sought to evaluate the benefit of empiric VoM ethanol ablation in addition to posterior wall isolation (PWI) during the repeat procedure in patients with durable pulmonary vein (PV) isolation from prior ablation. METHODS Twenty-three patients (age 67.1 + / - 7.4, 74% males) who received empiric VoM ethanol infusion in addition to PWI were matched for age, gender, ejection fraction, and left atrial size with forty-six patients receiving empiric PWI alone. All patients in the study group underwent additional ablation on mitral isthmus to complete the lateral mitral isthmus line. Additional ablation was based on program and trigger stimulation. Primary outcome was freedom from AF after a blanking period of 3 months by qualification of symptoms, EKG, wearable, or implantable monitor or device. RESULTS The study group had a higher average BMI (35.07 + / - 8.98 vs. 30.85 + / - 5.65, p = 0.033) and rate of persistent AF (83.0% vs. 54.3%, p = 0.029) versus the control. The 1-year AF-free survival for the study and control groups was 20 (86.96%) and 28 (60.1%) patients (p = 0.027). Cox proportional hazard regression analysis showed a significant reduction in AF recurrence in the study group (HR 0.25, 95% CI 0.073-0.843, p = 0.026). CONCLUSION Among patients undergoing repeat catheter ablation for recurrent AF with durably isolated PVs, the addition of VoM ethanol infusion increased the likelihood of remaining free from AF at 12 months.
Collapse
Affiliation(s)
- Gregory Cunn
- Department of Cardiology, Northshore University Hospital, Manhasset, NY, USA
| | - Apoor Patel
- Department of Cardiology, Houston Methodist Hospital, Houston, TX, USA
| | - Kristie Coleman
- Department of Cardiology, Lenox Hill Hospital, New York, NY, USA
| | - Eric Dulmovits
- Department of Cardiology, Northshore University Hospital, Manhasset, NY, USA
| | | | - Laurence Epstein
- Department of Cardiology, Northshore University Hospital, Manhasset, NY, USA
| | | | - Stuart Beldner
- Department of Cardiology, Northshore University Hospital, Manhasset, NY, USA.
| |
Collapse
|
3
|
Takigawa M, Miyazaki S, Sasano T. Impact of Ethanol Infusion to the Vein of Marshall in Atrial Fibrillation and Atrial Tachycardia. J Cardiovasc Dev Dis 2024; 11:183. [PMID: 39057606 PMCID: PMC11277033 DOI: 10.3390/jcdd11070183] [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: 05/12/2024] [Revised: 06/09/2024] [Accepted: 06/12/2024] [Indexed: 07/28/2024] Open
Abstract
The ligament of Marshall is an epicardial structure characterized by its composition of fat, fibrous tissue, blood vessels, muscle bundles, nerve fibers, and ganglia. Its intricate network forms muscular connections with the coronary sinus and left atrium, alongside adjacent autonomic nerves and ganglion cells. This complexity plays a pivotal role in initiating focal electrical activities and sustaining micro- and macro-reentrant circuits, thereby contributing to the onset of atrial fibrillation and atrial tachycardia. However, endocardial ablation in this area may encounter challenges due to anatomical variations and insulation by fibrofatty tissue. Combining ethanol infusion into the vein of Marshall with radiofrequency ablation presents a promising strategy for effectively and safely eliminating this arrhythmogenic structure and terminating associated tachycardias.
Collapse
Affiliation(s)
- Masateru Takigawa
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
- Department of Advanced Arrhythmia Research, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Shinsuke Miyazaki
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
- Department of Advanced Arrhythmia Research, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Tetsuo Sasano
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| |
Collapse
|
4
|
O’Neill L, De Becker B, De Smet M, Francois C, Tavernier R, Duytschaever M, Le Polain De Waroux JB, Knecht S. Vein of Marshall Ethanol Infusion for AF Ablation; A Review. J Clin Med 2024; 13:2438. [PMID: 38673710 PMCID: PMC11050818 DOI: 10.3390/jcm13082438] [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: 02/28/2024] [Revised: 04/14/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
The outcomes of persistent atrial fibrillation (AF) ablation are modest with various adjunctive strategies beyond pulmonary vein isolation (PVI) yielding largely disappointing results in randomised controlled trials. Linear ablation is a commonly employed adjunct strategy but is limited by difficulty in achieving durable bidirectional block, particularly at the mitral isthmus. Epicardial connections play a role in AF initiation and perpetuation. The ligament of Marshall has been implicated as a source of AF triggers and is known to harbour sympathetic and parasympathetic nerve fibres that contribute to AF perpetuation. Ethanol infusion into the Vein of Marshall, a remnant of the superior vena cava and key component of the ligament of Marshall, may eliminate these AF triggers and can facilitate the ease of obtaining durable mitral isthmus block. While early trials have demonstrated the potential of Vein of Marshall 'ethanolisation' to reduce arrhythmia recurrence after persistent AF ablation, further randomised trials are needed to fully determine the potential long-term outcome benefits afforded by this technique.
Collapse
Affiliation(s)
- Louisa O’Neill
- Department of Cardiology, AZ Sint-Jan Hospital, 8000 Bruges, Belgium; (B.D.B.); (S.K.)
- Department of Cardiology, Blackrock Clinic, A94 E4X7 Dublin, Ireland
- King’s College London, St. Thomas’ Hospital, London SE1 9NH, UK
| | - Benjamin De Becker
- Department of Cardiology, AZ Sint-Jan Hospital, 8000 Bruges, Belgium; (B.D.B.); (S.K.)
| | - Maarten De Smet
- Department of Cardiology, AZ Sint-Jan Hospital, 8000 Bruges, Belgium; (B.D.B.); (S.K.)
| | - Clara Francois
- Department of Cardiology, AZ Sint-Jan Hospital, 8000 Bruges, Belgium; (B.D.B.); (S.K.)
| | - Rene Tavernier
- Department of Cardiology, AZ Sint-Jan Hospital, 8000 Bruges, Belgium; (B.D.B.); (S.K.)
| | - Mattias Duytschaever
- Department of Cardiology, AZ Sint-Jan Hospital, 8000 Bruges, Belgium; (B.D.B.); (S.K.)
| | | | - Sebastien Knecht
- Department of Cardiology, AZ Sint-Jan Hospital, 8000 Bruges, Belgium; (B.D.B.); (S.K.)
| |
Collapse
|
5
|
Ding X, Wang L, Liu Q, Chen S, Jiang R, Yu L, Zhang P, Lin J, Sun Y, Sheng X, Fu G, Zei PC, Jiang C. Use of intracardiac echocardiography in vein of Marshall ethanol infusion for ablation of persistent atrial fibrillation. Heart Rhythm 2024; 21:274-281. [PMID: 38103707 DOI: 10.1016/j.hrthm.2023.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/25/2023] [Accepted: 11/28/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND Few methods have been reported to demonstrate real-time effects during vein of Marshall (VOM) ethanol infusion in persistent atrial fibrillation (PeAF). OBJECTIVE This study was to evaluate the impact of left atrial (LA) monitoring using intracardiac echocardiography (ICE) during VOM ethanol infusion. METHODS Seventy-four consecutive patients with PeAF who underwent VOM ethanol infusion followed by radiofrequency (RF) ablation were included. Patients with findings on ICE consistent with echogenic streaming in the LA and with increased myocardial local echogenicity along the VOM area were placed into one group (group A) and those without into the other group (group B). Outcomes between the 2 groups were compared. RESULTS Forty-six patients (62%) were placed into group A. A new ethanol-induced low-voltage area in group A was larger than that in group B (8.5 cm2 [5.5-10.2 cm2] and 4.0 cm2 (2.4-6.3 cm2]; P < .001). The RF ablation time required to achieve MI block was reduced in group A patients (263.0 seconds [196.0-351.0 seconds] vs 417.0 seconds [315.0-709.5 seconds] in group B patients; P < .001). MI block was achieved in 46 patients (100%) via an endocardial approach in group A and 27 patients (96.4%) in group B (extra coronary sinus ablation in 4 patients). One patient developed clinically significant pericardial effusions and required pericardiocentesis in group B. CONCLUSION Presence of increased myocardial local echogenicity at the ridge and consistent echogenic streaming in the LA detected by ICE-based imaging during VOM ethanol infusion suggests increased ablated tissue in that region and lower RF ablation time during ablation for PeAF.
Collapse
Affiliation(s)
- Xueyan Ding
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Li Wang
- Department of Cardiology, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Qiang Liu
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Shiquan Chen
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Ruhong Jiang
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Lu Yu
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Pei Zhang
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Jianwei Lin
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Yaxun Sun
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Xia Sheng
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Guosheng Fu
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China
| | - Paul C Zei
- Department of Cardiac Electrophysiology and Cardiovascular Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Chenyang Jiang
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, P.R. China.
| |
Collapse
|
6
|
Calvert P, Lip GYH, Gupta D. Radiofrequency catheter ablation of atrial fibrillation: A review of techniques. Trends Cardiovasc Med 2023; 33:405-415. [PMID: 35421538 DOI: 10.1016/j.tcm.2022.04.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/21/2022] [Accepted: 04/04/2022] [Indexed: 11/24/2022]
Abstract
Ablation of atrial fibrillation is a key area of current research. A multitude of techniques have been tested, some of which are poorly evidenced and not recommended in routine clinical practice whilst others are more promising. Additionally, a plethora of issues exist when researching ablation techniques, from control arm ablation strategy to the relevance of outcome measures. In this review article, we discuss these issues in the context of the current evidence base.
Collapse
Affiliation(s)
- Peter Calvert
- Department of Cardiology, Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart and Chest Hospital, Thomas Drive, Liverpool L14 3PE, UK
| | - Gregory Y H Lip
- Department of Cardiology, Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart and Chest Hospital, Thomas Drive, Liverpool L14 3PE, UK; Department of Clinical Medicine, Aalborg University, Denmark
| | - Dhiraj Gupta
- Department of Cardiology, Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart and Chest Hospital, Thomas Drive, Liverpool L14 3PE, UK.
| |
Collapse
|
7
|
Du X, Luo C, Shen C, Xu Y, Feng M, Jin H, Fu G, Wang B, Liu J, Gao F, Chu H. The impact of empirical Marshall vein ethanol infusion as a first-choice intraoperative strategy on the long-term outcomes in patients with persistent atrial fibrillation undergoing mitral isthmus ablation. Front Cardiovasc Med 2023; 10:1223064. [PMID: 37649670 PMCID: PMC10464908 DOI: 10.3389/fcvm.2023.1223064] [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: 05/15/2023] [Accepted: 07/25/2023] [Indexed: 09/01/2023] Open
Abstract
Background Marshall vein ethanol infusion (MVEI) as an additional therapy to conventional catheter ablation (CA) has been proved to be efficacious in patients with persistent atrial fibrillation (PeAF). However, whether empirical MVEI could be the first-line strategy in mitral isthmus (MI) ablation has seldom been investigated. Here, we aim to compare the efficacy, safety, and long-term outcomes between provisional and empirical MVEI in PeAF patients undergoing the index MI ablation procedure. Methods We enrolled 133 patients with PeAF either in the provisional group (n = 38, MVEI was performed when conventional endocardial and/or epicardial ablation procedures were inadequate to achieve bidirectional MI block) or in the empirical group (n = 95, MVEI was performed empirically before MI CA). Results All of the baseline characteristics were comparable. Less spontaneous or inducible atrial tachycardias (ATs) were encountered in the empirical group of patients (P < 0.001). More epicardial ablations were applied (26.3% vs. 9.5%, P = 0.016) and a higher incidence of CA-facilitated restoration of sinus rhythm was recorded (86.8% vs. 11.7%, P < 0.001) in the provisional group of patients. Although more fluoroscopy time (6.4[4.2, 9.3] vs. 9.5[5.9, 11.6] min, P = 0.019) and radiation exposure (69.0[25.3, 160.2] vs. 122.0[62.5, 234.1] mGy, P = 0.010) were documented in the empirical group with comparable procedure time, less time (455.9 ± 192.2 vs. 366.5 ± 161.3 s, P = 0.038) was consumed to achieve bidirectional MI block during endocardial ablation in the provisional group. Incidences of procedure-related complications were similar between the two groups. During a 16.5 ± 4.4-month follow-up, the empirical group of patients showed a significantly higher rate of freedom from AT recurrence (95.8% vs. 81.6%, log-rank P = 0.003), while the rate of freedom from AF or atrial tachyarrhythmias (combining AF and AT) was similar. Both univariate (HR 0.19, 95% CI 0.05-0.64, P = 0.008) and multivariate (HR 0.25, 95% CI 0.07-0.92, P = 0.037) Cox regression analyses indicated that empirical MVEI was independently associated with lower long-term AT recurrence. Conclusion Among patients with PeAF who underwent the index MI ablation procedure, empirical MVEI could reduce endocardial MI ablation time and provide greater long-term freedom from AT recurrence.
Collapse
Affiliation(s)
- Xianfeng Du
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Chenxu Luo
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- School of Medicine, Ningbo University, Ningbo, China
| | - Caijie Shen
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Yao Xu
- Department of Neurology, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo City, China
| | - Mingjun Feng
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - He Jin
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Guohua Fu
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Binhao Wang
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Jin Liu
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Fang Gao
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Huimin Chu
- Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| |
Collapse
|
8
|
Liu XX, Liu Q, Lai YW, Guo Q, Bai R, Long DY, Yu RH, Tang RB, Liu N, Jiang CX, Wang W, Guo XY, Li SN, Zhao X, Zuo S, Li CY, Song SM, Xie SL, Ge WL, Zou JG, Hou XF, Chen K, Zhang JL, Hu HS, Wang XH, Wang ZJ, Du X, Jiang CY, Sang CH, Dong JZ, Ma CS. Prospective randomized comparison between upgraded '2C3L' vs. PVI approach for catheter ablation of persistent atrial fibrillation: PROMPT-AF trial design. Am Heart J 2023; 260:34-43. [PMID: 36813122 DOI: 10.1016/j.ahj.2023.01.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/18/2023] [Accepted: 01/26/2023] [Indexed: 05/07/2023]
Abstract
BACKGROUND In randomized studies, the strategy of pulmonary vein antral isolation (PVI) plus linear ablation has failed to increase success rates for persistent atrial fibrillation (PeAF) ablation when compared with PVI alone. Peri-mitral reentry related atrial tachycardia due to incomplete linear block is an important cause of clinical failures of a first ablation procedure. Ethanol infusion (EI) into the vein of Marshall (EI-VOM) has been demonstrated to facilitate a durable mitral isthmus linear lesion. OBJECTIVE This trial is designed to compare arrhythmia-free survival between PVI and an ablation strategy termed upgraded '2C3L' for the ablation of PeAF. STUDY DESIGN The PROMPT-AF study (clinicaltrials.gov 04497376) is a prospective, multicenter, open-label, randomized trial using a 1:1 parallel-control approach. Patients (n = 498) undergoing their first catheter ablation of PeAF will be randomized to either the upgraded '2C3L' arm or PVI arm in a 1:1 fashion. The upgraded '2C3L' technique is a fixed ablation approach consisting of EI-VOM, bilateral circumferential PVI, and 3 linear ablation lesion sets across the mitral isthmus, left atrial roof, and cavotricuspid isthmus. The follow-up duration is 12 months. The primary end point is freedom from atrial arrhythmias of >30 seconds, without antiarrhythmic drugs, in 12 months after the index ablation procedure (excluding a blanking period of 3 months). CONCLUSIONS The PROMPT-AF study will evaluate the efficacy of the fixed '2C3L' approach in conjunction with EI-VOM, compared with PVI alone, in patients with PeAF undergoing de novo ablation.
Collapse
Affiliation(s)
- Xiao-Xia Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Qiang Liu
- Department of Cardiology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yi-Wei Lai
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Qi Guo
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Rong Bai
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China; Banner University Medical Center-Phoenix, The University of Arizona College of Medicine, Phoenix AZ, USA
| | - De-Yong Long
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Rong-Hui Yu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Ri-Bo Tang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Nian Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Chen-Xi Jiang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wei Wang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xue-Yuan Guo
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Song-Nan Li
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xin Zhao
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Song Zuo
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Chang-Yi Li
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Shang-Ming Song
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Shuang-Lun Xie
- China Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei-Li Ge
- Department of Cardiology, Taizhou Hospital of Zhejiang Province, Taizhou, China
| | - Jian-Gang Zou
- Department of Cardiology, Jiangsu Province Hospital, Nanjing, China
| | - Xiao-Feng Hou
- Department of Cardiology, Jiangsu Province Hospital, Nanjing, China
| | - Ke Chen
- Department of Cardiology, Fuwai Central China Cardiovascular Hospital, Zhengzhou, China
| | - Jin-Lin Zhang
- Department of Cardiology, Wuhan Asia Heart Hospital, Wuhan, China
| | - He-Sheng Hu
- Department of Cardiology, the First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Xin-Hua Wang
- Department of Cardiology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhao-Jun Wang
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin Du
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China; National Clinical Research Center for Cardiovascular Diseases, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine for Cardiovascular Diseases, Beijing, China; Heart Health Research Center, Beijing, China; The George Institute for Global Health, The University of New South Wales, Sydney, Australia
| | - Chen-Yang Jiang
- Department of Cardiology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
| | - Cai-Hua Sang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
| | - Jian-Zeng Dong
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China; Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chang-Sheng Ma
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
9
|
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.
Collapse
|
10
|
Valderrábano M. What to do when everything fails…Is alcohol the answer? HeartRhythm Case Rep 2023; 9:6-7. [PMID: 36685683 PMCID: PMC9845640 DOI: 10.1016/j.hrcr.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Miguel Valderrábano
- Houston Methodist DeBakey Heart and Vascular Center, Houston Methodist Hospital, Houston, Texas
| |
Collapse
|
11
|
Huang L, Gao M, Lai Y, Guo Q, Li S, Li C, Liu N, Wang W, Liu X, Zuo S, Guo X, Zhao X, Jiang C, Sang C, Tang R, Long D, Du X, Dong J, Ma CS. The adjunctive effect for left pulmonary vein isolation of vein of Marshall ethanol infusion in persistent atrial fibrillation. Europace 2022; 25:441-449. [PMID: 36504017 PMCID: PMC9935035 DOI: 10.1093/europace/euac219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/23/2022] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE This study sought to assess the effect of ethanol infusion into the vein of Marshall (EIVOM) on the acute success of left pulmonary vein (LPV) isolation in persistent atrial fibrillation (PeAF). METHODS AND RESULTS A total of 313 patients with drug-resistant PeAF were enrolled (135 in Group 1 and 178 in Group 2). In Group 1, EIVOM was firstly performed, followed by radiofrequency ablation (RFA) including bilateral pulmonary vein isolation (PVI) and linear ablation at roofline, cavotricuspid isthmus, and mitral isthmus (MI). In Group 2, PVI and linear ablations were completed with RFA. First-pass isolation of the LPV was achieved in 119 (88.1%) and 132 (74.2%) patients in Groups 1 and 2, respectively (P = 0.002). The rate of acute pulmonary vein reconnection (PVR) was significantly lower in Group 1 (9.6% vs. 22.5%, P = 0.003). About half of acute PVR occurred in the carina with or without EIVOM. CONCLUSION EIVOM is effective in achieving a higher first-pass isolation and a lower acute PVR of LPV in PeAF.
Collapse
Affiliation(s)
- Lihong Huang
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Mingyang Gao
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Yiwei Lai
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Qi Guo
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Songnan Li
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Changyi Li
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Nian Liu
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Wei Wang
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Xiaoxia Liu
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Song Zuo
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Xueyuan Guo
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Xin Zhao
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Chenxi Jiang
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Caihua Sang
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Ribo Tang
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Deyong Long
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Xin Du
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Jianzeng Dong
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Rd, Chaoyang District, 100029 Beijing, China
| | - Chang-sheng Ma
- Corresponding author. Fax: 86-10-84005361. E-mail address:
| |
Collapse
|
12
|
Langmuur SJJ, Taverne YJHJ, van Schie MS, Bogers AJJC, de Groot NMS. Optimization of intra-operative electrophysiological localization of the ligament of Marshall. Front Cardiovasc Med 2022; 9:1030064. [PMID: 36407441 PMCID: PMC9669368 DOI: 10.3389/fcvm.2022.1030064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022] Open
Abstract
Background The ligament of Marshall (LOM) may play a role in the pathophysiology of several tachyarrhythmias and accurate electrophysiological localization of this structure is crucial for effective ablation therapy. This study therefore quantifies electrophysiological properties of the LOM, and identifies which electrogram (EGM) recording (uni- or bipolar) and processing technologies [local activation time (LAT) and/or voltage mapping] are most suitable for accurate localization of the LOM. Methods The LOM was electrophysiologically identified in 19 patients (mean age 66 ± 14 years; 12 male) undergoing elective cardiac surgery using intra-operative high-density epicardial mapping, to quantify and visualize EGM features during sinus rhythm. Results Only a third of LOM potentials that were visualized using unipolar EGMs, were still visible in bipolar activation maps. Unipolar LOM potentials had lower voltages (P50: LOM: 1.51 (0.42–4.29) mV vs. left atrium (LA): 8.34 (1.50–17.91) mV, p < 0.001), less steep slopes (P50: LOM: –0.48 (–1.96 to –0.17) V/s vs. LA: –1.24 (–2.59 to –0.21) V/s, p < 0.001), and prolonged activation duration (LOM: 20 (7.5–30.5) ms vs. LA: 16.5 (6–28) ms, p = 0.008) compared to LA potentials. Likewise, bipolar LOM voltages were also smaller (P50: LOM: 1.54 (0.48–3.28) mV vs. LA: 3.12 (0.50–7.19) mV, p < 0.001). Conclusion The LOM was most accurately localized in activation and voltage maps by using unipolar EGMs with annotation of primary deflections in case of single potentials and secondary deflections in case of double or fractionated potentials.
Collapse
Affiliation(s)
- Sanne J. J. Langmuur
- Department of Cardiothoracic Surgery, Erasmus Medical Center, Rotterdam, Netherlands
| | | | | | - Ad J. J. C. Bogers
- Department of Cardiothoracic Surgery, Erasmus Medical Center, Rotterdam, Netherlands
| | - Natasja M. S. de Groot
- Department of Cardiology, Erasmus Medical Center, Rotterdam, Netherlands
- *Correspondence: Natasja M. S. de Groot,
| |
Collapse
|
13
|
The Maine vein of Marshall ethanol experience: learning curve and safety. J Interv Card Electrophysiol 2022; 66:661-671. [PMID: 36181632 DOI: 10.1007/s10840-022-01378-8] [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: 08/04/2022] [Accepted: 09/19/2022] [Indexed: 10/06/2022]
Abstract
BACKGROUND The marginal benefit of ethanol infusion into the vein of Marshall (VOM) as an adjunct to atrial fibrillation ablation has shown promise in a single randomized study and case series from very experienced centers. However, adoption has not been widespread and the impact on real-world outcomes outside of leading centers is not established. The objective in this study is to understand the learning curve, and explore procedural outcomes and safety with VOM ethanol infusion from a large single medical center. METHODS One hundred twenty nine atrial ablation cases wherein VOM ethanol infusion was attempted were identified from the time of the program's inception in 2019 at Maine Medical Center (Portland, ME). Our technical approach, procedural success, and complications were adjudicated from the medical record. RESULTS The overall VOM ethanol infusion success was 90%. Infusion success rates improved and fluoroscopy utilization decreased with experience. Arrhythmia recurrence was 14% after a mean follow-up of 9.5 months. Complications occurred in 5.4% of patients, including a 3.1% risk of delayed tamponade. CONCLUSION In our single center experience, VOM ethanol infusion was feasible with a high technical success rate. These positive results are balanced against a concerning rate of delayed tamponade.
Collapse
|
14
|
Ding L, Zhang H, Yu F, Mi L, Hua W, Zhang S, Yao Y, Tang M. Angiographic Characteristics of the Vein of Marshall in Patients with and without Atrial Fibrillation. J Clin Med 2022; 11:jcm11185384. [PMID: 36143031 PMCID: PMC9502660 DOI: 10.3390/jcm11185384] [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: 08/14/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Ethanol infusion into the vein of Marshall (Et-VOM) is a novel therapeutic treatment for atrial fibrillation (AF). However, few studies have focused on the difference between AF and non-AF patients (presented other types of arrhythmias) regarding the characteristics of the vein of Marshall (VOM). Objective: This study sought to investigate the incidence, morphology, and angiographic characteristics of the VOM. Methods: Coronary sinus (CS) angiography was performed in all patients. The baseline, angiographic characteristics and measurements of VOM dimensions were compared between the AF and non-AF group. Results: CS angiography was performed in 290 patients. The VOM detection rate was higher in the AF group than in the non-AF group (91.8% vs. 84.1%, p = 0.044). In the right anterior oblique (RAO) projection, AF patients had significant larger VOM ostium, CS ostium, and CS diameter at VOM ostium than non-AF patients (1.9 ± 0.9 vs. 1.7 ± 0.7 mm, p = 0.015; 12.8 ± 4.1 vs. 11.4 ± 3.7 mm, p = 0.016; 9.1 ± 3.1 vs. 8.2 ± 2.9 mm, p = 0.028, respectively). There was a slight linear correlation between the VOM ostium and the CS ostium diameter as well as left atrial volume (LAV). Conclusion: AF patients seem to have a higher incidence of the VOM, larger VOM ostium, CS ostium, and CS lumen in RAO view. Meanwhile, the VOM ostium may correlate with the CS ostium and LAV.
Collapse
|
15
|
He B, Zhao F, Yu W, Li Y, Wu X, Lu Z. Ethanol Infusion of Vein of Marshall for the Treatment of Persistent Atrial Fibrillation: The Basics and Clinical Practice. J Cardiovasc Dev Dis 2022; 9:jcdd9080270. [PMID: 36005434 PMCID: PMC9409861 DOI: 10.3390/jcdd9080270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/08/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022] Open
Abstract
Catheter ablation for persistent atrial fibrillation (PeAF) is particularly challenging, as the clinical outcomes are modest. Pulmonary vein isolation (PVI) plus linear ablation is one of the main strategies for PeAF ablation. Completely durable transmural lesions are difficult to achieve by catheter ablation during mitral isthmus ablation. The ligament of Marshall contains the vein of Marshall (VOM), myocardial tracts and innervation, and serves as arrhythmogenic foci that make it an attractive target in catheter ablation of atrial fibrillation. Additionally, it co-localizes with the mitral isthmus, and may serve as a part of the perimitral isthmus reentrant circuit. Ethanol infusion into the VOM results in rapid ablation of the neighboring myocardium and its innervation. Its incorporation into PVI significantly increases the success rate of mitral isthmus block and the clinical outcome of PeAF ablation.
Collapse
Affiliation(s)
- Bo He
- Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan 430071, China
- Cardiovascular Institute, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430071, China
| | - Fang Zhao
- Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan 430071, China
- Cardiovascular Institute, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430071, China
| | - Wenxi Yu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan 430071, China
- Cardiovascular Institute, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430071, China
| | - Yi Li
- Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan 430071, China
- Cardiovascular Institute, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430071, China
| | - Xiaoyan Wu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan 430071, China
- Cardiovascular Institute, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430071, China
| | - Zhibing Lu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan 430071, China
- Cardiovascular Institute, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430071, China
- Correspondence: ; Tel.: +86-27-67813073
| |
Collapse
|
16
|
Junarta J, Dikdan SJ, Upadhyay N, Molin A, Bodempudi S, Warner E, Joffe D, Pang Z, Frisch DR. Pulmonary vein isolation alone versus pulmonary vein isolation with additional extensive ablation for paroxysmal and persistent atrial fibrillation. J Arrhythm 2022; 38:589-597. [PMID: 35936038 PMCID: PMC9347196 DOI: 10.1002/joa3.12727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/25/2022] [Accepted: 04/21/2022] [Indexed: 11/30/2022] Open
Abstract
Background The value of additional ablation beyond pulmonary vein isolation for atrial fibrillation (AF) ablation is unclear, especially for persistent AF. It is uncertain whether substrate modification with additional extensive ablation improves outcomes. We reviewed our experience to determine whether pulmonary vein isolation with additional extensive ablation (PVIEA) improves outcomes compared to pulmonary vein isolation alone (PVIA) for AF ablation. Methods Consecutive cases of patients with PVIA versus PVIEA were compared between September 9, 2013 and December 12, 2020. Procedural data collected include radiofrequency ablation delivery time (RADT) and arrhythmia inducibility. Clinical data collected include sinus rhythm maintenance post-procedure. Results A total of 235 patients were studied (67 PVIA and 168 PVIEA). RADT was shorter when comparing ablation with PVIA versus PVIEA (32 vs. 40 min; p = .04). More arrhythmias were inducible with PVIEA (p < .01). There was no difference in sinus rhythm maintenance by Kaplan-Meier survival analysis (log-rank test p = .75), after 3 or 12 months between groups overall, and when stratified by AF type (paroxysmal and persistent), left atrial volume, CHA2DS2-VASc score, left ventricular ejection fraction, or catheter ablation setting (high-power short-duration, standard-power standard-duration, temperature-controlled non-contact-force). Conclusion AF ablation with PVIA or PVIEA produces similar sinus rhythm maintenance overall and when stratified by catheter setting and AF type. PVIA reduced procedure times and less arrhythmias were inducible post-ablation.
Collapse
Affiliation(s)
- Joey Junarta
- Department of MedicineThomas Jefferson University HospitalPhiladelphiaPennsylvaniaUSA
| | - Sean J. Dikdan
- Jefferson Heart InstituteThomas Jefferson University HospitalPhiladelphiaPennsylvaniaUSA
| | - Naman Upadhyay
- Department of MedicineThomas Jefferson University HospitalPhiladelphiaPennsylvaniaUSA
| | - Andrea Molin
- Department of MedicineThomas Jefferson University HospitalPhiladelphiaPennsylvaniaUSA
| | - Sairamya Bodempudi
- Department of MedicineThomas Jefferson University HospitalPhiladelphiaPennsylvaniaUSA
| | - Eric Warner
- Department of MedicineThomas Jefferson University HospitalPhiladelphiaPennsylvaniaUSA
| | - Daniel Joffe
- Sidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPennsylvaniaUSA
| | - Zachary Pang
- Sidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPennsylvaniaUSA
| | - Daniel R. Frisch
- Jefferson Heart InstituteThomas Jefferson University HospitalPhiladelphiaPennsylvaniaUSA
| |
Collapse
|
17
|
Kawaguchi N, Tanaka Y, Okubo K, Tachibana S, Nakashima E, Takagi K, Hikita H, Goya M, Sasano T, Takahashi A. Effect of radiofrequency and ethanol ablation on epicardial conduction through the vein of Marshall: How to detect and manage epicardial connection across the mitral isthmus. Heart Rhythm 2022; 19:1255-1262. [PMID: 35367659 DOI: 10.1016/j.hrthm.2022.03.1228] [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: 02/03/2022] [Revised: 03/16/2022] [Accepted: 03/26/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Vein of Marshall (VOM), surrounded by the Marshall bundle (MB), behaves as an epicardial connection bypassing the mitral isthmus. The influence of radiofrequency ablation and VOM ethanol infusion (VOM-EI) on epicardial MB conduction remains unclear. OBJECTIVE This study aimed to evaluate MB conduction status during mitral isthmus ablation. METHODS Of 57 consecutive patients undergoing mitral isthmus ablation, 50 with electrode catheter cannulation into the VOM were analyzed. MB conduction was investigated by evaluating electrograms inside the VOM. Endocardial ablation was initially performed, followed by ablation inside the coronary sinus (CS), if required. Selective VOM-EI was performed if the MB potentials still exhibited early activation after radiofrequency ablation, suggesting the presence of MB connection bridging the mitral isthmus. RESULTS VOM electrograms composed of near-field MB and far-field left atrial potentials were recorded in all patients. Solely with endocardial ablation, 33 patients (66%) achieved entire mitral isthmus block, and 43 patients (86%) achieved an epicardial MB conduction block. MB potentials exhibited early activation in the remaining seven (14%), even after requiring CS ablation. Then, VOM-EI was performed. Elimination of MB potentials was verified by electrode catheter re-insertion after VOM-EI. Mitral isthmus conduction was successfully blocked during VOM-EI in four patients and during additional radiofrequency ablation in the remaining three. All patients finally achieved entire mitral isthmus block. CONCLUSIONS MB is effectively ablated by radiofrequency ablation. Continuous evaluation of MB conduction can reveal epicardial conduction and ablation effect. A residual MB epicardial connection is relatively rare but can be ablated by VOM-EI.
Collapse
Affiliation(s)
- Naohiko Kawaguchi
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan, 1-16 Yonegahama-dori, Yokosuka, Japan, 238-8558.
| | - Yasuaki Tanaka
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan, 1-16 Yonegahama-dori, Yokosuka, Japan, 238-8558
| | - Kenji Okubo
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan, 1-16 Yonegahama-dori, Yokosuka, Japan, 238-8558
| | - Shinichi Tachibana
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan, 1-16 Yonegahama-dori, Yokosuka, Japan, 238-8558
| | - Emiko Nakashima
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan, 1-16 Yonegahama-dori, Yokosuka, Japan, 238-8558
| | - Katsumasa Takagi
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan, 1-16 Yonegahama-dori, Yokosuka, Japan, 238-8558
| | - Hiroyuki Hikita
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan, 1-16 Yonegahama-dori, Yokosuka, Japan, 238-8558
| | - Masahiko Goya
- Department of Cardiology, Tokyo Medical and Dental University, Tokyo, Japan, 1-5-45 Yushima, Bunkyo-ward, Tokyo, Japan 113-8519
| | - Tetsuo Sasano
- Department of Cardiology, Tokyo Medical and Dental University, Tokyo, Japan, 1-5-45 Yushima, Bunkyo-ward, Tokyo, Japan 113-8519
| | - Atsushi Takahashi
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan, 1-16 Yonegahama-dori, Yokosuka, Japan, 238-8558
| |
Collapse
|
18
|
Nakashima T, Pambrun T, Vlachos K, Goujeau C, André C, Krisai P, Daniel Ramirez F, Pintican G, Kamakura T, Takagi T, Nakatani Y, Surget E, Cheniti G, Tixier R, Chauvel R, Duchateau J, Sacher F, Cochet H, Hocini M, Haïssaguerre M, Jaïs P, Derval N. Strategy for Repeat Procedures in Patients with Persistent Atrial Fibrillation: Systematic Linear Ablation with Adjunctive Ethanol Infusion into the Vein of Marshall versus Electrophysiology‐Guided Ablation. J Cardiovasc Electrophysiol 2022; 33:1116-1124. [DOI: 10.1111/jce.15472] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/22/2022] [Accepted: 02/28/2022] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | | | - F. Daniel Ramirez
- CHU Bordeaux, IHU Lyric, Univ. BordeauxFrance
- Division of Cardiology, University of Ottawa Heart InstituteOttawaOntarioCanada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Pierre Jaïs
- CHU Bordeaux, IHU Lyric, Univ. BordeauxFrance
| | | |
Collapse
|
19
|
Mhanna M, Beran A, Al-Abdouh A, Sajdeya O, Altujjar M, Alom M, M Abumoawad A, M Elzanaty A, Chacko P, A Eltahawy E. Adjunctive Vein of Marshall Ethanol Infusion During Atrial Fibrillation Ablation: A Systematic Review and Meta-Analysis. J Atr Fibrillation 2021; 14:20200492. [PMID: 34950366 DOI: 10.4022/jafib.20200492] [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: 03/28/2021] [Revised: 04/27/2021] [Accepted: 06/26/2021] [Indexed: 11/10/2022]
Abstract
Introduction Catheter ablation (CA) for atrial fibrillation (AF) can be associated with limited efficacy. Due to its autonomic innervation, the vein of Marshall (VOM) is an attractive target during AF ablation. In this meta-analysis, we aimed to evaluate the efficacy and safety of adjunctive ethanol infusion of VOM (VOM-EI) in AF ablation. Methods We performed a comprehensive literature search for studies that evaluated the efficacy and safety of VOM-EI in AF ablation compared to AF catheter ablation alone. The primary outcome of interest was late (≥3 months) AF or atrial tachycardia (AT) recurrence. The secondary outcomes included acute mitral isthmus bidirectional block (MIBB) and procedural complications (pericardial effusion, stroke, or atrio-esophageal fistula). Pooled relative risk (RR) and corresponding 95% confidence intervals (CIs) were calculated using the random-effects model. Results A total of four studies, including 804 AF patients (68.2% with persistent AF, the mean age of 63.5±9.9 years, 401 patients underwent VOM-EI plus CA vs. 403 patients who had CA alone), were included in the final analysis. VOM-EI group was associated with a lower risk of late AF/AT recurrence (RR:0.63; 95% CI:0.46-0.87; P = 0.005), and increased probability to achieve acute MIBB (RR:1.39; 95% CI:1.08-1.79; P = 0.009) without an increase in procedural complications (RR:1.05; 95% CI:0.57-1.94; P = 0.87). Conclusions Our meta-analysis demonstrated that adjunctive VOM-EI strategy is more effective than conventional catheter ablation with similar safety profiles.
Collapse
Affiliation(s)
- Mohammed Mhanna
- Department of Internal Medicine, The University of Toledo, Toledo, OH, USA
| | - Azizullah Beran
- Department of Internal Medicine, The University of Toledo, Toledo, OH, USA
| | - Ahmad Al-Abdouh
- Department of Internal Medicine, Saint Agnes Hospital, Baltimore, MD, USA
| | - Omar Sajdeya
- Department of Internal Medicine, The University of Toledo, Toledo, OH, USA
| | - Mohammed Altujjar
- Department of Internal Medicine, Promedica Toledo hospital, Toledo, OH, USA
| | - Modar Alom
- Department of Internal Medicine, Promedica Toledo hospital, Toledo, OH, USA
| | - Abdelrhman M Abumoawad
- Department of Internal Medicine, University of Missouri Kansas City, Kansas City, MO, USA
| | - Ahmed M Elzanaty
- Department of Cardiovascular Medicine, The University of Toledo, Toledo, OH, USA
| | - Paul Chacko
- Department of Cardiovascular Medicine, The University of Toledo, Toledo, OH, USA
| | - Ehab A Eltahawy
- Department of Cardiovascular Medicine, The University of Toledo, Toledo, OH, USA
| |
Collapse
|
20
|
Laredo M, Ferchaud V, Thomas O, Moubarak G, Cauchemez B, Zhao A. Durability of Left Atrial Lesions After Ethanol Infusion in the Vein of Marshall. JACC Clin Electrophysiol 2021; 8:41-48. [PMID: 34454885 DOI: 10.1016/j.jacep.2021.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The aim of this study was to assess the persistence of left atrial (LA) lesions created by ethanol infusion in the vein of Marshall (EIVM) by electroanatomical mapping on repeat catheter ablation for recurrent atrial tachyarrhythmia. BACKGROUND Little is known about the durability of LA lesions created by EIVM. METHODS The study included consecutive patients who underwent EIVM for persistent atrial fibrillation or perimitral LA flutter (index procedure) and repeat catheter ablation for recurrent atrial tachyarrhythmia or atrial fibrillation at a single center between January 2019 and April 2020. The acute effect of EIVM was assessed at the index procedure by comparing the area of bipolar voltage <0.05 mV in the vein of Marshall (VOM) region before and immediately after EIVM. The long-term effect of EIVM was assessed by comparing this area in the VOM region between the redo procedure and the index procedure. RESULTS Twenty-four consecutive patients (mean age 68.6 ± 6.1 years, 58% men) underwent redo procedures after previous EIVM for persistent atrial fibrillation (n = 21 [88%]) or perimitral LA flutter (n = 5 [21%]). In each patient, the EIVM-related lesion persisted, with a chronic scar in the VOM region (median 13.1 cm2 [interquartile range: 8.1-15.9 cm2] vs 12.4 cm2 [interquartile range: 7.6-15.7 cm2] acutely, respectively). One quarter of patients (9 of 20) had late mitral isthmus reconnection, which was located at the mitral annular edge or in the coronary sinus. CONCLUSIONS Atrial lesions created by EIVM are durable, which reinforces the efficacy profile of EIVM. Reconduction sites in the mitral isthmus are located at the edge of the scar and in the coronary sinus.
Collapse
Affiliation(s)
- Mikael Laredo
- Laboratoire d'Electrophysiologie, Clinique Ambroise Paré, Neuilly-sur-Seine, France; Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, Unité de Rythmologie, Institut de Cardiologie, Paris, France
| | - Virginie Ferchaud
- Centre d'Explorations de Réanimation et d'Intervention Cardiaque, Clinique Ambroise Paré, Neuilly-sur-Seine, France; Service de Cardiologie, CHU Caen Normandie, Caen, France
| | - Olivier Thomas
- Laboratoire d'Electrophysiologie, Clinique Ambroise Paré, Neuilly-sur-Seine, France; Centre d'Explorations de Réanimation et d'Intervention Cardiaque, Clinique Ambroise Paré, Neuilly-sur-Seine, France
| | - Ghassan Moubarak
- Laboratoire d'Electrophysiologie, Clinique Ambroise Paré, Neuilly-sur-Seine, France; Centre d'Explorations de Réanimation et d'Intervention Cardiaque, Clinique Ambroise Paré, Neuilly-sur-Seine, France
| | - Bruno Cauchemez
- Laboratoire d'Electrophysiologie, Clinique Ambroise Paré, Neuilly-sur-Seine, France; Centre d'Explorations de Réanimation et d'Intervention Cardiaque, Clinique Ambroise Paré, Neuilly-sur-Seine, France
| | - Alexandre Zhao
- Laboratoire d'Electrophysiologie, Clinique Ambroise Paré, Neuilly-sur-Seine, France; Centre d'Explorations de Réanimation et d'Intervention Cardiaque, Clinique Ambroise Paré, Neuilly-sur-Seine, France.
| |
Collapse
|
21
|
Gianni C, Anannab A, Della Rocca DG, Salwan A, MacDonald B, Quintero Mayedo A, Mohanty S, Trivedi C, Di Biase L, Natale A. Recurrent Atrial Fibrillation with Isolated Pulmonary Veins: What to Do. Card Electrophysiol Clin 2021; 12:209-217. [PMID: 32451105 DOI: 10.1016/j.ccep.2020.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
When patients have symptomatic recurrent atrial tachyarrhythmias after 2 months following pulmonary vein antral isolation, a repeat ablation should be considered. Patients might present with isolated pulmonary veins posterior wall. In these patients, posterior wall isolation is extended, and non-pulmonary vein triggers are actively sought and ablated. Moreover, in those with non-paroxysmal atrial fibrillation or a known higher prevalence of non-pulmonary vein triggers, empirical isolation of the superior vena cava, coronary sinus, and/or left atrial appendage might be performed. In this review, we will focus on ablation of non-pulmonary vein triggers, summarizing our current approach for their mapping and ablation.
Collapse
Affiliation(s)
- Carola Gianni
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA.
| | - Alisara Anannab
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA; Electrophysiology Unit, Department of Cardiovascular Interventions, Central Chest Institute of Thailand, Nonthaburi, Thailand
| | | | - Anu Salwan
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA
| | - Bryan MacDonald
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA
| | | | - Sanghamitra Mohanty
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA; Dell Medical School, University of Texas, Austin, TX, USA
| | - Chintan Trivedi
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA
| | - Luigi Di Biase
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA; Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Andrea Natale
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA; HCA National Medical Director of Cardiac Electrophysiology, USA; Interventional Electrophysiology, Scripps Clinic, La Jolla, CA, USA; MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| |
Collapse
|
22
|
Hawkins RB, Mehaffey JH, Charles EJ, Mannem HC, Roeser M. Lung Transplantation for Severe Post-coronavirus Disease 2019 Respiratory Failure. Transplantation 2021; 105:1381-1387. [PMID: 33606480 DOI: 10.1097/tp.0000000000003706] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND The coronavirus disease 2019 (COVID-19) pandemic has resulted in >72 million cases and 1.6 million deaths. End-stage lung disease from COVID-19 is a new and growing entity that may benefit from lung transplant; however, there are limited data on the patient selection, perioperative management, and expected outcomes of transplantation for this indication. METHODS A systematic review of the literature was performed with searches of MEDLINE and Web of Science databases as well as the gray literature. All manuscripts, editorials, commentaries, and gray literature reports of lung transplantation for COVID-related respiratory failure were included. A case from the University of Virginia is described and included in the review. RESULTS A total of 27 studies were included: 11 manuscripts, 5 commentaries, and 11 gray literature reports. The total number of transplantations for COVID-related lung disease was 21. The mean age was 55±12 years, 16 (76%) were male individuals, and the acuity was high, with 85% on extracorporeal membrane oxygenation preoperatively. There was a 95% early survival rate, with 1 additional late death. There is growing histopathologic evidence for permanent structural damage with no replicating virus at the time of transplantation. CONCLUSIONS Bilateral lung transplantation is an effective treatment option with reasonable short-term outcomes for patients with end-stage lung failure secondary to COVID-19. However, specific considerations in this new population require a multidisciplinary approach. As we move into the second wave of the COVID-19 global pandemic, lung transplantation will likely have a growing role in management of these complex patients.
Collapse
Affiliation(s)
- Robert B Hawkins
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| | - J Hunter Mehaffey
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| | - Eric J Charles
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| | - Hannah C Mannem
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Virginia, Charlottesville, VA
| | - Mark Roeser
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| |
Collapse
|
23
|
He Z, Yang L, Bai M, Yao Y, Zhang Z. Feasibility, efficacy, and safety of ethanol infusion into the vein of Marshall for atrial fibrillation: A meta-analysis. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2021; 44:1151-1162. [PMID: 33990979 DOI: 10.1111/pace.14263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/24/2021] [Accepted: 05/09/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Contemporary radiofrequency catheter ablation (RFCA) approaches for atrial fibrillation (AF) have reached an efficacy "ceiling". Ethanol infusion into the vein of Marshall (EI-VOM) has shown potential in preliminary studies. Data on EI-VOM are largely limited to small single-center reports, and clinical benefits and risks have not been systematically examined. Therefore, we performed a meta-analysis to assess the feasibility, efficacy, and safety of EI-VOM for AF. METHODS All studies evaluating EI-VOM for AF were initially searched from four electronic search engines: PubMed, Web of Science, Cochrane Library, and SinoMed. We used RevMan5.4 to calculate pooled outcomes of randomized controlled trial and cohort studies. We also performed single-arm meta-analyses using Open Meta-Analyst. RESULTS We included a total of 10 studies with 1322 patients. Successful EI-VOM was performed in 86.7% (95% CI 81.9-91.4%) of patients. For persistent AF patients, the recurrence of AF and/or atrial tachycardia (AT) was significantly lower in the EI-VOM combined with RFCA group compared with RFCA alone group (RR 0.58, 95% CI 0.35 to 0.96, p = 0.04). EI-VOM combined with RFCA significantly increased the rate of bidirectional mitral isthmus block compared with RFCA alone in AF patients (RR 1.50, 95% CI 1.34 to 1.67, p < 0.001). There were nine cardiac tamponades observed in 644 patients (PR 0.8%, 95% CI 0.1-1.5%) who were performed EI-VOM combined with RFCA. CONCLUSIONS Our meta-analysis brings encouraging evidence that adjuvant EI-VOM reduces AF and/or AT recurrence rate in persistent AF patients and increases the success rate of bidirectional mitral isthmus block.
Collapse
Affiliation(s)
- Zhiyu He
- Heart Center, the First Hospital of Lanzhou University, Lanzhou, China.,the First Clinical Medical School, Lanzhou University, Lanzhou, China.,Gansu Key Laboratory of Cardiovascular Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.,The Quality Improvement Project for the Diagnosis and Treatment of Complicated Cardiovascular and Cerebrovascular Diseases (2018), The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Lin Yang
- Department of Pathology, the First Hospital of Lanzhou University, Lanzhou, China
| | - Ming Bai
- Heart Center, the First Hospital of Lanzhou University, Lanzhou, China.,Gansu Key Laboratory of Cardiovascular Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.,The Quality Improvement Project for the Diagnosis and Treatment of Complicated Cardiovascular and Cerebrovascular Diseases (2018), The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Yali Yao
- Heart Center, the First Hospital of Lanzhou University, Lanzhou, China.,Gansu Key Laboratory of Cardiovascular Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.,The Quality Improvement Project for the Diagnosis and Treatment of Complicated Cardiovascular and Cerebrovascular Diseases (2018), The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Zheng Zhang
- Heart Center, the First Hospital of Lanzhou University, Lanzhou, China.,the First Clinical Medical School, Lanzhou University, Lanzhou, China.,Gansu Key Laboratory of Cardiovascular Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.,The Quality Improvement Project for the Diagnosis and Treatment of Complicated Cardiovascular and Cerebrovascular Diseases (2018), The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| |
Collapse
|
24
|
Nakamura K, Takigawa M, Sasaki T, Minami K, Naito S. What are the post-ablation insular residual electrograms in the posterior left pulmonary veins electrically connected to? Indian Pacing Electrophysiol J 2021; 21:241-244. [PMID: 33965551 PMCID: PMC8263333 DOI: 10.1016/j.ipej.2021.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/11/2021] [Accepted: 04/30/2021] [Indexed: 11/29/2022] Open
Abstract
A 67-year-old man underwent a third ablation procedure for a recurrent atrial tachycardia (AT) after an extensive pulmonary vein (PV) isolation, linear ablation along the left atrial (LA) roof and posterolateral mitral isthmus (MI), and defragmentation of persistent atrial fibrillation and an induced perimitral AT. High-resolution mapping during the clinical AT using the Rhythmia system (Boston Scientific) suggested that the AT was a ridge-related reentrant AT and exhibited a reconnection of the left PVs (LPVs). The residual electrograms in the posterior LPVs were surrounded by endocardial scar, which was like an island consisting of residual LPV electrograms. Retrograde venography of the vein of Marshall (VOM) demonstrated that the VOM reached the posterior left superior PV through the ridge between the LA appendage and left inferior PV and then the LPV carina. An ethanol infusion into the VOM resulted in a simultaneous AT termination and complete electrical isolation of the LPVs, that is, the disappearance of the residual LPV electrograms. The insular residual LPV electrograms in the present case did not appear to be endocardially connected to the LA, because the LPV electrograms were surrounded by endocardial scar and there was a large time gap between the earliest activation in the posterior LPVs and activation in the surrounding area. The VOM course on the venography and elimination of the residual LPV electrograms with an ethanol infusion into the VOM suggested that the insular residual LPV electrograms were electrically connected to the posterolateral LA via the VOM and its branches.
Collapse
Affiliation(s)
- Kohki Nakamura
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma, 371-0004, Japan.
| | - Masateru Takigawa
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo City, Tokyo, 113-8510, Japan
| | - Takehito Sasaki
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma, 371-0004, Japan
| | - Kentaro Minami
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma, 371-0004, Japan
| | - Shigeto Naito
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma, 371-0004, Japan
| |
Collapse
|
25
|
Lam A, Küffer T, Hunziker L, Nozica N, Asatryan B, Franzeck F, Madaffari A, Haeberlin A, Mühl A, Servatius H, Seiler J, Noti F, Baldinger SH, Tanner H, Windecker S, Reichlin T, Roten L. Efficacy and safety of ethanol infusion into the vein of Marshall for mitral isthmus ablation. J Cardiovasc Electrophysiol 2021; 32:1610-1619. [PMID: 33928711 DOI: 10.1111/jce.15064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/31/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Chemical ablation by retrograde infusion of ethanol into the vein of Marshall (VOM-EI) can facilitate the achievement of mitral isthmus block. This study sought to describe the efficacy and safety of this technique. METHODS AND RESULTS Twenty-two consecutive patients (14 males, median age 71 years) with attempted VOM-EI for mitral isthmus ablation were included in the study. VOM-EI was successfully performed with a median of 4 ml of 96% ethanol in 19 patients (86%) and the mitral isthmus was successfully blocked in all (100%). Touch up endocardial and/or epicardial ablation after VOM-EI was necessary for 12 patients (63%). Perimitral flutter was present in 12 patients (63%) during VOM-EI and terminated or slowed by VOM-EI in 4 and 3 patients, respectively. The low-voltage area of the mitral isthmus region increased from 3.1 cm2 (interquartile range [IQR] 0-7.9) before to 13.2 cm2 (IQR: 8.2-15.0) after VOM-EI and correlated significantly with the volume of ethanol injected (p = .03). Median high-sensitive cardiac troponin-T increased significantly from 330 ng/L (IQR: 221-516) the evening of the procedure to 598 ng/L (IQR: 382-769; p = .02) the following morning. A small pericardial effusion occurred in three patients (16%), mild pericarditis in one (5%), and uneventful VOM dissection in two (11%). After a median follow-up of 3.5 months (IQR: 3.0-11.0), 10 of 18 patients (56%) with VOM-EI and available follow-up had arrhythmia recurrence. Repeat ablation was performed in five patients (50%) and peri-mitral flutter diagnosed in three (60%). CONCLUSION VOM-EI is feasible, safe, and effective to achieve acute mitral isthmus block.
Collapse
Affiliation(s)
- Anna Lam
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Thomas Küffer
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Lukas Hunziker
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Nikolas Nozica
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Babken Asatryan
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Florian Franzeck
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Antonio Madaffari
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Andreas Haeberlin
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Aline Mühl
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Helge Servatius
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Jens Seiler
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Fabian Noti
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Samuel H Baldinger
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Hildegard Tanner
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Stephan Windecker
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Tobias Reichlin
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Laurent Roten
- Department of Cardiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| |
Collapse
|
26
|
Valderrábano M, Baez-Escudero JL, Okishige K. To the Editor-Omissions and misconceptions on vein of Marshall ethanol infusion. Heart Rhythm 2021; 18:1251. [PMID: 33862218 DOI: 10.1016/j.hrthm.2021.03.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/06/2021] [Accepted: 03/19/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Miguel Valderrábano
- Division of Cardiac Electrophysiology, Houston Methodist DeBakey Heart and Vascular Center, Houston, Texas.
| | - Jose L Baez-Escudero
- Cardiac Pacing and Electrophysiology Section, Robert and Suzanne Tomsich Department of Cardiology, Cleveland Clinic Florida, Weston, Florida
| | - Kaoru Okishige
- Yokohama Minato Heart Clinic, Red Cross Yokohama-city Bay Hospital, Yokohama, Japan
| |
Collapse
|
27
|
Valderrábano M. Vein of Marshall ethanol infusion in the treatment of atrial fibrillation: From concept to clinical practice. Heart Rhythm 2021; 18:1074-1082. [PMID: 33781979 DOI: 10.1016/j.hrthm.2021.03.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/18/2021] [Accepted: 03/21/2021] [Indexed: 11/25/2022]
Abstract
The vein of Marshall (VOM) contains innervation, myocardial connections, and arrhythmogenic foci that make it an attractive target in catheter ablation of atrial fibrillation (AF). Additionally, it co-localizes with the mitral isthmus, which is critical to sustain perimitral flutter, and is a true atrial vein that communicates with underlying myocardium. Retrograde balloon cannulation of the VOM from the coronary sinus is feasible and allows for ethanol delivery, which results in rapid ablation of neighboring myocardium and its innervation. Here we review the body of work performed over a span of 13 years, from the inception of the technique, to its preclinical validation, to demonstration of its ablative and denervation effects, and finally to completion of a randomized clinical trial demonstrating favorable outcomes, improving rhythm control in catheter ablation of persistent AF.
Collapse
Affiliation(s)
- Miguel Valderrábano
- Division of Cardiac Electrophysiology, Department of Cardiology, Houston Methodist DeBakey Heart and Vascular Center and Houston Methodist Research Institute, The Methodist Hospital, Houston, Texas.
| |
Collapse
|
28
|
Lador A, Valderrábano M. Atrial Fibrillation Ablation Using Vein of Marshall Ethanol Infusion. Methodist Debakey Cardiovasc J 2021; 17:52-55. [PMID: 34104321 DOI: 10.14797/zqme8581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Catheter ablation has become a cornerstone treatment for atrial fibrillation (AF). Pulmonary vein isolation is the accepted approach for paroxysmal AF ablation, but it is less effective for persistent AF. The vein of Marshall (VOM) is located in the epicardial left atrium and can be a source of AF triggers as well as a tract for autonomic nerves. It directly communicates with the underlying myocardium, including the left atrial ridge and the posterior mitral isthmus. This review discusses the latest evidence regarding the mechanisms, procedural aspects, and outcomes of VOM ethanol infusion when used as an adjunct to pulmonary vein isolation in patients with persistent AF.
Collapse
Affiliation(s)
- Adi Lador
- Houston Methodist DeBakey Heart & Vascular Center, Houston Methodist Hospital, Houston, Texas
| | - Miguel Valderrábano
- Houston Methodist DeBakey Heart & Vascular Center, Houston Methodist Hospital, Houston, Texas
| |
Collapse
|
29
|
La Rosa G, Quintanilla JG, Salgado R, González-Ferrer JJ, Cañadas-Godoy V, Pérez-Villacastín J, Jalife J, Pérez-Castellano N, Filgueiras-Rama D. Anatomical targets and expected outcomes of catheter-based ablation of atrial fibrillation in 2020. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2021; 44:341-359. [PMID: 33283883 DOI: 10.1111/pace.14140] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/18/2020] [Accepted: 11/29/2020] [Indexed: 11/29/2022]
Abstract
Anatomical-based approaches, targeting either pulmonary vein isolation (PVI) or additional extra PV regions, represent the most commonly used ablation treatments in symptomatic patients with atrial fibrillation (AF) recurrences despite antiarrhythmic drug therapy. PVI remains the main anatomical target during catheter-based AF ablation, with the aid of new technological advances as contact force monitoring to increase safety and effective radiofrequency (RF) lesions. Nowadays, cryoballoon ablation has also achieved the same level of scientific evidence in patients with paroxysmal AF undergoing PVI. In parallel, electrical isolation of extra PV targets has progressively increased, which is associated with a steady increase in complex cases undergoing ablation. Several atrial regions as the left atrial posterior wall, the vein of Marshall, the left atrial appendage, or the coronary sinus have been described in different series as locations potentially involved in AF initiation and maintenance. Targeting these regions may be challenging using conventional point-by-point RF delivery, which has opened new opportunities for coadjuvant alternatives as balloon ablation or selective ethanol injection. Although more extensive ablation may increase intraprocedural AF termination and freedom from arrhythmias during the follow-up, some of the targets to achieve such outcomes are not exempt of potential severe complications. Here, we review and discuss current anatomical approaches and the main ablation technologies to target atrial regions associated with AF initiation and maintenance.
Collapse
Affiliation(s)
- Giulio La Rosa
- Department of Myocardial Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Cardiovascular Institute, Madrid, Spain
| | - Jorge G Quintanilla
- Department of Myocardial Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Cardiovascular Institute, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Ricardo Salgado
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Cardiovascular Institute, Madrid, Spain
| | - Juan José González-Ferrer
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Cardiovascular Institute, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Victoria Cañadas-Godoy
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Cardiovascular Institute, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Julián Pérez-Villacastín
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Cardiovascular Institute, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Fundación Interhospitalaria para la Investigación Cardiovascular (FIC), Madrid, Spain
| | - José Jalife
- Department of Myocardial Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Nicasio Pérez-Castellano
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Cardiovascular Institute, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Fundación Interhospitalaria para la Investigación Cardiovascular (FIC), Madrid, Spain
| | - David Filgueiras-Rama
- Department of Myocardial Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Cardiovascular Institute, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| |
Collapse
|
30
|
Lador A, Peterson LE, Swarup V, Schurmann PA, Makkar A, Doshi RN, DeLurgio D, Athill CA, Ellenbogen KA, Natale A, Koneru J, Dave AS, Giorgberidze I, Afshar H, Guthrie ML, Bunge R, Morillo CA, Kleiman NS, Valderrábano M. Determinants of outcome impact of vein of Marshall ethanol infusion when added to catheter ablation of persistent atrial fibrillation: A secondary analysis of the VENUS randomized clinical trial. Heart Rhythm 2021; 18:1045-1054. [PMID: 33482387 DOI: 10.1016/j.hrthm.2021.01.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/01/2021] [Accepted: 01/05/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND The Vein of Marshall Ethanol for Untreated Persistent AF (VENUS) trial demonstrated that adding vein of Marshall (VOM) ethanol infusion to catheter ablation (CA) improves ablation outcomes in persistent atrial fibrillation (AF). There was significant heterogeneity in the impact of VOM ethanol infusion on rhythm control. OBJECTIVE The purpose of this study was to assess the association between outcomes and (1) achievement of bidirectional perimitral conduction block and (2) procedural volume. METHODS The VENUS trial randomized patients with persistent AF (N = 343) to CA combined with VOM ethanol or CA alone. The primary outcome (freedom from AF or atrial tachycardia [AT] lasting longer than 30 seconds after a single procedure) was analyzed by 2 categories: (1) successful vs no perimitral block and (2) high- (>20 patients enrolled) vs low-volume centers. RESULTS In patients with perimitral block, the primary outcome was reached 54.3% after VOM-CA and 37% after CA alone (P = .01). Among patients without perimitral block, freedom from AF/AT was 34.0% after VOM-CA and 37.0% after CA (P = .583). In high-volume centers, the primary outcome was reached in 56.4% after VOM-CA and 40.2% after CA (P = .01). In low-volume centers, freedom from AF/AT was 30.77% after VOM-CA and 32.61% after CA (P = .84). In patients with successful perimitral block from high-volume centers, the primary outcome was reached in 59% after VOM-CA and 39.1% after CA (P = .01). Tests for interaction were significant (P = .002 for perimitral block and P = .04 for center volume). CONCLUSION Adding VOM ethanol infusion to CA has a greater impact on outcomes when associated with perimitral block and performed in high-volume centers. Perimitral block should be part of the VOM procedure.
Collapse
Affiliation(s)
- Adi Lador
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | - Leif E Peterson
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | | | - Paul A Schurmann
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas; Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas
| | | | - Rahul N Doshi
- Division of Cardiology, Keck-USC University Hospital, University of Southern California, Los Angeles, California
| | - David DeLurgio
- Division of Cardiology, Emory St. Joseph's Hospital, Emory University, Atlanta, Georgia
| | - Charles A Athill
- San Diego Cardiac Center, Sharp Memorial Hospital, San Diego, California
| | - Kenneth A Ellenbogen
- Division of Cardiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia
| | - Andrea Natale
- Texas Cardiac Arrhythmia Institute, St David's Medical Center, Austin, Texas
| | - Jayanthi Koneru
- Division of Cardiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia
| | - Amish S Dave
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | | | - Hamid Afshar
- Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas
| | - Michelle L Guthrie
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | - Raquel Bunge
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | - Carlos A Morillo
- Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Neal S Kleiman
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | - Miguel Valderrábano
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas.
| |
Collapse
|
31
|
Valderrábano M, Peterson LE, Swarup V, Schurmann PA, Makkar A, Doshi RN, DeLurgio D, Athill CA, Ellenbogen KA, Natale A, Koneru J, Dave AS, Giorgberidze I, Afshar H, Guthrie ML, Bunge R, Morillo CA, Kleiman NS. Effect of Catheter Ablation With Vein of Marshall Ethanol Infusion vs Catheter Ablation Alone on Persistent Atrial Fibrillation: The VENUS Randomized Clinical Trial. JAMA 2020; 324:1620-1628. [PMID: 33107945 PMCID: PMC7592031 DOI: 10.1001/jama.2020.16195] [Citation(s) in RCA: 175] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
IMPORTANCE Catheter ablation of persistent atrial fibrillation (AF) has limited success. Procedural strategies beyond pulmonary vein isolation have failed to consistently improve results. The vein of Marshall contains innervation and AF triggers that can be ablated by retrograde ethanol infusion. OBJECTIVE To determine whether vein of Marshall ethanol infusion could improve ablation results in persistent AF when added to catheter ablation. DESIGN, SETTING, AND PARTICIPANTS The Vein of Marshall Ethanol for Untreated Persistent AF (VENUS) trial was an investigator-initiated, National Institutes of Health-funded, randomized, single-blinded trial conducted in 12 centers in the United States. Patients (N = 350) with persistent AF referred for first ablation were enrolled from October 2013 through June 2018. Follow-up concluded in June 2019. INTERVENTIONS Patients were randomly assigned to catheter ablation alone (n = 158) or catheter ablation combined with vein of Marshall ethanol infusion (n = 185) in a 1:1.15 ratio to accommodate for 15% technical vein of Marshall ethanol infusion failures. MAIN OUTCOMES AND MEASURES The primary outcome was freedom from AF or atrial tachycardia for longer than 30 seconds after a single procedure, without antiarrhythmic drugs, at both 6 and 12 months. Outcome assessment was blinded to randomization treatment. There were 12 secondary outcomes, including AF burden, freedom from AF after multiple procedures, perimitral block, and others. RESULTS Of the 343 randomized patients (mean [SD] age, 66.5 [9.7] years; 261 men), 316 (92.1%) completed the trial. Vein of Marshall ethanol was successfully delivered in 155 of 185 patients. At 6 and 12 months, the proportion of patients with freedom from AF/atrial tachycardia after a single procedure was 49.2% (91/185) in the catheter ablation combined with vein of Marshall ethanol infusion group compared with 38% (60/158) in the catheter ablation alone group (difference, 11.2% [95% CI, 0.8%-21.7%]; P = .04). Of the 12 secondary outcomes, 9 were not significantly different, but AF burden (zero burden in 78.3% vs 67.9%; difference, 10.4% [95% CI, 2.9%-17.9%]; P = .01), freedom from AF after multiple procedures (65.2% vs 53.8%; difference, 11.4% [95% CI, 0.6%-22.2%]; P = .04), and success achieving perimitral block (80.6% vs 51.3%; difference, 29.3% [95% CI, 19.3%-39.3%]; P < .001) were significantly improved in vein of Marshall-treated patients. Adverse events were similar between groups. CONCLUSIONS AND RELEVANCE Among patients with persistent AF, addition of vein of Marshall ethanol infusion to catheter ablation, compared with catheter ablation alone, increased the likelihood of remaining free of AF or atrial tachycardia at 6 and 12 months. Further research is needed to assess longer-term efficacy. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT01898221.
Collapse
Affiliation(s)
- Miguel Valderrábano
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | - Leif E. Peterson
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | | | - Paul A. Schurmann
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
- Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas
| | | | - Rahul N. Doshi
- Keck-USC University Hospital, University of Southern California, Los Angeles
| | - David DeLurgio
- Emory St Joseph’s Hospital, Emory University, Atlanta, Georgia
| | | | | | - Andrea Natale
- Texas Cardiac Arrhythmia Institute, St David’s Medical Center, Austin
| | - Jayanthi Koneru
- Virginia Commonwealth University School of Medicine, Richmond
| | - Amish S. Dave
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | | | - Hamid Afshar
- Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas
| | - Michelle L. Guthrie
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | - Raquel Bunge
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| | - Carlos A. Morillo
- Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Neal S. Kleiman
- Houston Methodist DeBakey Heart and Vascular Center and Research Institute, Houston, Texas
| |
Collapse
|
32
|
He B, Wang X, Zhao F, Guo T, Po SS, Lu Z. The ligament of Marshall and arrhythmias: A review. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2020; 44:792-799. [PMID: 32914878 DOI: 10.1111/pace.14071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/17/2020] [Accepted: 09/09/2020] [Indexed: 01/27/2023]
Abstract
The ligament of Marshall (LOM) is a remnant of the embryonic sinus venosus and left cardinal vein, and contains fat and fibrous tissues, blood vessels, muscle bundles, nerve fibers, and ganglia. The complexity of LOM's structure makes it as a source of triggers and drivers as well as substrates of re-entry for atrial arrhythmias, especially for atrial fibrillation (AF). LOM also serves as a portion of left atrial macro-re-entrant circuit, especially peri-mitral isthmus re-entrant circuit. Experimental studies demonstrate that the LOM acts as a sympathetic conduit between the left stellate ganglion and the ventricles, and participates in the initiation and maintenance of ventricular arrhythmias. Endocardial or epicardial catheter ablation or ethanol infusion into the vein of Marshall may serve as an important adjunct therapy to pulmonary vein isolation in patients with advanced stage of AF, and may help alleviate ventricular arrhythmias as well.
Collapse
Affiliation(s)
- Bo He
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiaoying Wang
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Fang Zhao
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Tao Guo
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Sunny S Po
- Heart Rhythm Institute and Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Zhibing Lu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| |
Collapse
|
33
|
Briceño DF, Patel K, Romero J, Alviz I, Tarantino N, Della Rocca DG, Natale V, Zhang XD, Di Biase L. Beyond Pulmonary Vein Isolation in Nonparoxysmal Atrial Fibrillation: Posterior Wall, Vein of Marshall, Coronary Sinus, Superior Vena Cava, and Left Atrial Appendage. Card Electrophysiol Clin 2020; 12:219-231. [PMID: 32451106 DOI: 10.1016/j.ccep.2020.01.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The optimal ablation strategy for non-paroxysmal atrial fibrillation remains controversial. Non-PV triggers have been shown to have a major arrhythmogenic role in these patients. Common sources of non-PV triggers are: posterior wall, left atrial appendage, superior vena cava, coronary sinus, vein of Marshall, interatrial septum, crista terminalis/Eustachian ridge, and mitral and tricuspid valve annuli. These sites are targeted empirically in selected cases or if significant ectopy is noted (with or without a drug challenge), to improve outcomes in patients with non-paroxysmal atrial fibrillation. This article focuses on summarizing the current evidence and the approach to mapping and ablation of these frequent non-PV trigger sites.
Collapse
Affiliation(s)
- David F Briceño
- Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210th Street, Bronx, NY 10467, USA
| | - Kavisha Patel
- Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210th Street, Bronx, NY 10467, USA
| | - Jorge Romero
- Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210th Street, Bronx, NY 10467, USA
| | - Isabella Alviz
- Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210th Street, Bronx, NY 10467, USA
| | - Nicola Tarantino
- Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210th Street, Bronx, NY 10467, USA
| | | | - Veronica Natale
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA
| | - Xiao-Dong Zhang
- Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210th Street, Bronx, NY 10467, USA
| | - Luigi Di Biase
- Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210th Street, Bronx, NY 10467, USA.
| |
Collapse
|
34
|
Barrio-Lopez MT, Sanchez-Quintana D, Garcia-Martinez J, Betancur A, Castellanos E, Arceluz M, Ortiz M, Nevado-Medina J, Garcia F, Almendral J. Epicardial Connections Involving Pulmonary Veins. Circ Arrhythm Electrophysiol 2020; 13:e007544. [DOI: 10.1161/circep.119.007544] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Background:
The presence of epicardial connections (ECs) between pulmonary veins (PVs) and other anatomic structures may hinder PV isolation. In this study, we analyzed their prevalence, location, associated factors, and clinical implications.
Methods:
Five hundred thirty-four consecutive patients with atrial fibrillation undergoing radiofrequency ablation were included. We considered that an EC was present if: (1) the first pass around the PV antrum did not produce PV isolation and (2) subsequent atrial activation during PV pacing showed that the earliest site was located away from the ablation line and later activation sites were observed near the ablation line. Clinical and electrophysiological variables were collected from all patients. Patients were followed during 12.9±9.4 months, and any documented atrial tachyarrhythmia after the 3-month blanking period was classified as a recurrence.
Results:
Out of the 534 patients included, 72 (13.5%) were found to have 81 ECs. There was a significant association between the presence of ECs and structural heart disease (15.3% in patients without ECs versus 36.5% in patient with ECs;
P
<0.001) and patent foramen ovale (4.6% versus 13.5%;
P
=0.002). The presence of a left common trunk was significantly associated with the absence of ECs (29.6% in patients without ECs versus 16.2% in patients with ECs;
P
=0.014). Patients with ECs had lower acute success in PV isolation compared with patients without ECs (99.1% versus 86.1%;
P
<0.001). After adjusting for age, sex, type of atrial fibrillation, left atrium area, hypertension, structural heart disease, presence of left common trunk, patent foramen ovale, and time for atrial fibrillation diagnosis to the ablation, we found a significantly higher risk of atrial tachyarrhythmia recurrences in patients with ECs compared with patients without ECs (hazard ratio, 1.7 [95% CI, 1.1–2.9];
P
=0.04).
Conclusions:
ECs between PVs and other adjacent structures are frequent in patient with atrial fibrillation (prevalence: 13.5%). Structural heart disease and a patent foramen ovale are strongly associated with the presence of ECs. ECs reduce the acute and chronic success of PV isolation.
Collapse
Affiliation(s)
- Maria Teresa Barrio-Lopez
- Electrophysiology and Arrhythmia Unit, Centro integral de Enfermedades Cardiovasculares (HM CIEC), Hospital Universitario HM Monteprincipe, HM Hospitales, University CEU-San Pablo, Madrid, Spain (M.T.B.-L., J.G.-M., A.B., E.C., M.A., M.O., J.A.)
| | - Damian Sanchez-Quintana
- Anatomy and Cell Biology Department, School of Medicine, University of Badajoz, Spain (D.S.-Q., J.N.-M.)
| | - Joaquin Garcia-Martinez
- Electrophysiology and Arrhythmia Unit, Centro integral de Enfermedades Cardiovasculares (HM CIEC), Hospital Universitario HM Monteprincipe, HM Hospitales, University CEU-San Pablo, Madrid, Spain (M.T.B.-L., J.G.-M., A.B., E.C., M.A., M.O., J.A.)
| | - Andres Betancur
- Electrophysiology and Arrhythmia Unit, Centro integral de Enfermedades Cardiovasculares (HM CIEC), Hospital Universitario HM Monteprincipe, HM Hospitales, University CEU-San Pablo, Madrid, Spain (M.T.B.-L., J.G.-M., A.B., E.C., M.A., M.O., J.A.)
| | - Eduardo Castellanos
- Electrophysiology and Arrhythmia Unit, Centro integral de Enfermedades Cardiovasculares (HM CIEC), Hospital Universitario HM Monteprincipe, HM Hospitales, University CEU-San Pablo, Madrid, Spain (M.T.B.-L., J.G.-M., A.B., E.C., M.A., M.O., J.A.)
| | - Martín Arceluz
- Electrophysiology and Arrhythmia Unit, Centro integral de Enfermedades Cardiovasculares (HM CIEC), Hospital Universitario HM Monteprincipe, HM Hospitales, University CEU-San Pablo, Madrid, Spain (M.T.B.-L., J.G.-M., A.B., E.C., M.A., M.O., J.A.)
| | - Mercedes Ortiz
- Electrophysiology and Arrhythmia Unit, Centro integral de Enfermedades Cardiovasculares (HM CIEC), Hospital Universitario HM Monteprincipe, HM Hospitales, University CEU-San Pablo, Madrid, Spain (M.T.B.-L., J.G.-M., A.B., E.C., M.A., M.O., J.A.)
| | - Jorge Nevado-Medina
- Anatomy and Cell Biology Department, School of Medicine, University of Badajoz, Spain (D.S.-Q., J.N.-M.)
| | - Fermin Garcia
- Cardiac Electrophysisology Program, Hospital of the Univeristy of Pennsylvania, Perlman School of Medicine, Philadelphia (F.G.)
| | - Jesús Almendral
- Electrophysiology and Arrhythmia Unit, Centro integral de Enfermedades Cardiovasculares (HM CIEC), Hospital Universitario HM Monteprincipe, HM Hospitales, University CEU-San Pablo, Madrid, Spain (M.T.B.-L., J.G.-M., A.B., E.C., M.A., M.O., J.A.)
| |
Collapse
|
35
|
Yu L, Liu Q, Jiang R, Zhang P, Sun Y, Sheng X, Chen S, Zhang Z, Fu G, Jiang C. Adjunctive percutaneous ablation targeting epicardial arrhythmogenic structures in patients of atrial fibrillation with recurrence after multiple procedures. J Cardiovasc Electrophysiol 2019; 31:401-409. [DOI: 10.1111/jce.14316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 11/27/2019] [Accepted: 12/06/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Lu Yu
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Qiang Liu
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Ru‐Hong Jiang
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Pei Zhang
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Ya‐Xun Sun
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Xia Sheng
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Shi‐Quan Chen
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Zu‐Wen Zhang
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Guo‐Sheng Fu
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| | - Chen‐Yang Jiang
- Department of Cardiology, School of Medicine, Sir Run Run Shaw HospitalZhejiang University Hangzhou Zhejiang China
| |
Collapse
|
36
|
Valderrábano M, Peterson LE, Bunge R, Prystash M, Dave AS, Nagueh S, Kleiman NS. Vein of Marshall ethanol infusion for persistent atrial fibrillation: VENUS and MARS clinical trial design. Am Heart J 2019; 215:52-61. [PMID: 31279972 PMCID: PMC6692654 DOI: 10.1016/j.ahj.2019.04.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 04/29/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Although pulmonary vein isolation (PVI) is effective in the treatment of paroxysmal atrial fibrillation (AF), its success rates in persistent AF are suboptimal. Ablation strategies to improve outcomes including additional lesions beyond PVI have not consistently shown benefit. Recurrence as perimitral flutter (PMF) is a common form of ablation failure. The vein of Marshall (VOM) contains myocardial connections and abundant sympathetic and parasympathetic innervation implicated in the genesis and maintenance of AF, and is anatomically co-localized with the mitral isthmus, the ablation target of PMF. VOM ethanol infusion is effective in targeting these arrhythmia substrates. OBJECTIVE To test the safety and efficacy of VOM ethanol infusion when added to PVI in patients undergoing either de novo ablation of persistent AF or after a previous ablation failure. STUDY DESIGN VENUS-AF and MARS-AF are prospective, multicenter, randomized, controlled trials. VENUS-AF will enroll patients undergoing their first catheter ablation of persistent AF. MARS-AF will enroll patients undergoing ablation after previous ablation failure(s). Patients (n = 405) will be randomized to PVI alone or in combination with VOM ethanol infusion. The primary endpoints include procedural safety and freedom from AF or atrial tachycardia (AT) of more than 30 seconds on 30-day continuous event monitors at 6 and 12 months after randomization procedure (single-procedure success), off antiarrhythmic drugs. Key secondary endpoints include AF burden, freedom from AF/AT after repeat procedures and quality of life. CONCLUSIONS The VENUS-AF and MARS-AF will determine the safety and potential rhythm control benefit of VOM ethanol infusion when added to PVI in patients with persistent AF undergoing de novo or repeat ablation, respectively.
Collapse
Affiliation(s)
| | - Leif E Peterson
- Houston Methodist DeBakey Heart and Vascular Center, Houston, TX
| | - Raquel Bunge
- Houston Methodist DeBakey Heart and Vascular Center, Houston, TX
| | | | - Amish S Dave
- Houston Methodist DeBakey Heart and Vascular Center, Houston, TX
| | - Sherif Nagueh
- Houston Methodist DeBakey Heart and Vascular Center, Houston, TX
| | - Neal S Kleiman
- Houston Methodist DeBakey Heart and Vascular Center, Houston, TX
| |
Collapse
|
37
|
Gianni C, Mohanty S, Trivedi C, Di Biase L, Natale A. Novel concepts and approaches in ablation of atrial fibrillation: the role of non-pulmonary vein triggers. Europace 2019; 20:1566-1576. [PMID: 29697759 DOI: 10.1093/europace/euy034] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 02/26/2018] [Indexed: 12/25/2022] Open
Abstract
Ablation of non-pulmonary vein (PV) triggers is an important step to improve outcomes in atrial fibrillation ablation. Non-pulmonary vein triggers typically originates from predictable sites (such as the left atrial posterior wall, superior vena cava, coronary sinus, interatrial septum, and crest terminalis), and these areas can be ablated either empirically or after observing significant ectopy (with or without drug challenge). In this review, we will focus on ablation of non-PV triggers, summarizing the existing evidence and our current approach for their mapping and ablation.
Collapse
Affiliation(s)
- Carola Gianni
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA.,U.O.C. Cardiologia, IRCCS Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Sanghamitra Mohanty
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA.,Dell Medical School, University of Texas, Austin, TX, USA
| | - Chintan Trivedi
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA
| | - Luigi Di Biase
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA.,Department of Biomedical Engineering, University of Texas, Austin, TX, USA.,Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Andrea Natale
- Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX, USA.,Dell Medical School, University of Texas, Austin, TX, USA.,Department of Biomedical Engineering, University of Texas, Austin, TX, USA.,MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,Division of Cardiology, Stanford University, Stanford, CA, USA.,Electrophysiology and Arrhythmia Services, California Pacific Medical Center, San Francisco, CA, USA
| |
Collapse
|
38
|
Liu C, Lo L, Lin Y, Lin C, Chang S, Chung F, Chao T, Hu Y, Tuan T, Liao J, Chen Y, Kuo L, Chang T, Hoang QM, Salim S, Vicera JJB, Wu C, Chuang C, Huang T, Chen S. Long‐term efficacy and safety of adjunctive ethanol infusion into the vein of Marshall during catheter ablation for nonparoxysmal atrial fibrillation. J Cardiovasc Electrophysiol 2019; 30:1215-1228. [DOI: 10.1111/jce.13969] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 04/01/2019] [Accepted: 04/05/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Chih‐Min Liu
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Li‐Wei Lo
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Yenn‐Jiang Lin
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Chin‐Yu Lin
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Shih‐Lin Chang
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Fa‐Po Chung
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Tze‐Fan Chao
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Yu‐Feng Hu
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Ta‐Chuan Tuan
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Jo‐Nan Liao
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Yun‐Yu Chen
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Epidemiology and Preventive Medicine College of Public HealthNational Taiwan University Taipei Taiwan
| | - Ling Kuo
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Ting‐Yung Chang
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Quang Minh Hoang
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
| | - Simon Salim
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
| | - Jennifer Jeanne B. Vicera
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
| | - Cheng‐I Wu
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| | - Chieh‐Mao Chuang
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
| | - Ting‐Chung Huang
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
| | - Shih‐Ann Chen
- Heart Rhythm Center, Division of Cardiology, Department of MedicineTaipei Veterans General Hospital Taipei Taiwan
- Institute of Clinical Medicine, School of MedicineNational Yang‐Ming University Taipei Taiwan
| |
Collapse
|
39
|
Valderrábano M. Improving ablation results in persistent AF: Is ethanol the answer? J Cardiovasc Electrophysiol 2019; 30:1229-1230. [PMID: 31148309 DOI: 10.1111/jce.13971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 05/01/2019] [Indexed: 01/23/2023]
|
40
|
Higa S, Lo LW, Chen SA. Catheter Ablation of Paroxysmal Atrial Fibrillation Originating from Non-pulmonary Vein Areas. Arrhythm Electrophysiol Rev 2018; 7:273-281. [PMID: 30588316 DOI: 10.15420/aer.2018.50.3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 11/16/2018] [Indexed: 02/04/2023] Open
Abstract
Pulmonary veins (PVs) are a major source of ectopic beats that initiate AF. PV isolation from the left atrium is an effective therapy for the majority of paroxysmal AF. However, investigators have reported that ectopy originating from non-PV areas can also initiate AF. Patients with recurrent AF after persistent PV isolation highlight the need to identify non-PV ectopy. Furthermore, adding non-PV ablation after multiple AF ablation procedures leads to lower AF recurrence and a higher AF cure rate. These findings suggest that non-PV ectopy is important in both the initiation and recurrence of AF. This article summarises current knowledge about the electrophysiological characteristics of non-PV AF, suitable mapping and ablation strategies, and the safety and efficacy of catheter ablation of AF initiated by ectopic foci originating from non-PV areas.
Collapse
Affiliation(s)
- Satoshi Higa
- Cardiac Electrophysiology and Pacing Laboratory, Division of Cardiovascular Medicine, Makiminato Central Hospital Okinawa, Japan
| | - Li-Wei Lo
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital Taipei, Taiwan.,Institute of Clinical Medicine, Department of Medicine, School of Medicine, National Yang-Ming University Taipei, Taiwan
| | - Shih-Ann Chen
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital Taipei, Taiwan.,Institute of Clinical Medicine, Department of Medicine, School of Medicine, National Yang-Ming University Taipei, Taiwan
| |
Collapse
|
41
|
Lee JH, Nam GB, Go TH, Hwang J, Kim M, Hwang YM, Kim J, Choi KJ, Kim YH. Alternative strategies to improve success rate of mitral isthmus block. Medicine (Baltimore) 2018; 97:e13060. [PMID: 30508886 PMCID: PMC6283218 DOI: 10.1097/md.0000000000013060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 10/08/2018] [Indexed: 11/26/2022] Open
Abstract
Achieving bidirectional conduction block (BDB) across the mitral isthmus (MI) is technically challenging. We describe our experience using different ablation strategies for achieving successful MI block.We reviewed the records of patients who had undergone MI ablation for peri-mitral (PM) flutter at our institution from January 2010 to May 2015. We investigated ablation strategies for achieving MI block and their long-term outcomes in terms of recurrence of atrial tachyarrhythmia.Single endocardial MI ablation with or without distal coronary sinus (CS) ablation achieved MI block in 129 out of 236 (54.7%) patients. After failure of MI block, a new MI line ablation, ablation targeting the vein of Marshall (VOM), or anterior line ablation was performed in selected patients. The MI block was achieved in 13 (52.0%) out of 25 patients with new MI line ablation and in 13 (68.4%) out of 19 patients with VOM ablation. Anterior line ablation was tried in 23 patients and the line of block was achieved in 12 (52.2%) patients. Finally, overall PM BDB (PMB, MI block or anterior line block) was achieved in 167 (70.8%) of 236 patients. The incidence atrial tachyarrhythmia was similar between the patients with successful PMB and those with failed PMB (32.9% vs 42.0%, P = .18). In multivariable Cox regression analysis, the PMB was not associated with recurrence of atrial tachyarrhythmia (hazard ratio [HR]: 0.70, 95% confidence interval [CI]: 0.43-1.12).In conclusion, single endocardial MI line with or without distal CS ablation showed limited success for achieving MI block. Additional substrate modifications such as a new MI line ablation, anterior line ablation, or ablation targeting the VOM may improve the success rate of PMB block. However, the benefits of PMB were not clear in this study.
Collapse
Affiliation(s)
- Ji Hyun Lee
- Department of Cardiology, Wonju Severance Christian Hospital, Wonju
| | - Gi-Byoung Nam
- Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Tae-Hwa Go
- Center of Biomedical Data Science, Wonju College of Medicine, Yonsei University, Wonju
| | - Jongmin Hwang
- Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Minsu Kim
- Department of Cardiology, Chungnam National University Hospital, Daejeon
| | - You Mi Hwang
- Department of Cardiology, St. Vincent Hospital, Suwon, Korea
| | - Jun Kim
- Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Kee-Joon Choi
- Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - You-Ho Kim
- Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| |
Collapse
|
42
|
Efremidis M, Vlachos K, Letsas KP, Bazoukis G, Martin R, Frontera A, Asvestas D, Saplaouras A, Kitamura Τ, Georgopoulos S, Valkanas K, Karamichalakis N, Takigawa M, Sideris A, Derval N, Sacher F, Jais P. Targeted ablation of specific electrogram patterns in low-voltage areas after pulmonary vein antral isolation in persistent atrial fibrillation: Termination to an organized rhythm reduces atrial fibrillation recurrence. J Cardiovasc Electrophysiol 2018; 30:47-57. [PMID: 30288830 DOI: 10.1111/jce.13763] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/19/2018] [Accepted: 08/29/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Ablation strategies have been developed to improve outcomes in patients with persistent atrial fibrillation (PsAF). However, the impact of atrial fibrillation (AF) termination on late AF recurrence is not well known. The aim of our study was to evaluate the impact of AF termination to atrial tachycardia (AT) or sinus rhythm (SR) during catheter ablation on late AF recurrence after the 3-month blanking period. METHODS AND RESULTS We prospectively recruited 140 patients (mean age: 58.5 ± 12.3 years old, 74.3% males) with uninterrupted PsAF of a mean duration of 3.7 months. Pulmonary vein antral isolation (PVAI) was the first ablation step, and if AF did not terminate (to SR or AT), we ablated low-voltage areas less than 0.4 mV with specific electrogram characteristics. We successfully converted AF to AT or SR in 56 patients (40%) during PVAI (n = 24) or low-voltage ablation ( n = 32). The remaining 84 patients (60%) were electrically cardioverted to SR at the end of the procedure. One hundred patients (71.4%) maintained SR after a single procedure during a mean follow-up of 21.1 ± 0.8 months. Of the 56 patients with AF termination, 46 (82.1%) had no recurrence, while in the group of 84 patients without AF termination, 54 patients (64.3%) remained in SR ( P < 0.02). CONCLUSION Ablation of PVAI and specific electrograms in low-voltage areas less than 0.4 mV can lead to encouraging outcomes with a low recurrence rate as well as a lower need for redo procedures.
Collapse
Affiliation(s)
- Michael Efremidis
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Konstantinos Vlachos
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Konstantinos P Letsas
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - George Bazoukis
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Ruairidh Martin
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Antonio Frontera
- Hôpital Cardiologique Haut Lévêque, Lyric Institute, Université de Bordeaux, Bordeaux-Pessac, France
| | - Dimitrios Asvestas
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Athanasios Saplaouras
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Τakeshi Kitamura
- Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Tokyo, Japan
| | - Stamatios Georgopoulos
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Kosmas Valkanas
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Nikolaos Karamichalakis
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Masateru Takigawa
- Hôpital Cardiologique Haut Lévêque, Lyric Institute, Université de Bordeaux, Bordeaux-Pessac, France
| | - Antonios Sideris
- Laboratory of Cardiac Electrophysiology, Second Department of Cardiology, "Evangelismos" General Hospital of Athens, Athens, Greece
| | - Nicolas Derval
- Hôpital Cardiologique Haut Lévêque, Lyric Institute, Université de Bordeaux, Bordeaux-Pessac, France
| | - Frederic Sacher
- Hôpital Cardiologique Haut Lévêque, Lyric Institute, Université de Bordeaux, Bordeaux-Pessac, France
| | - Pierre Jais
- Hôpital Cardiologique Haut Lévêque, Lyric Institute, Université de Bordeaux, Bordeaux-Pessac, France
| |
Collapse
|
43
|
|
44
|
Valderrábano M. Ligament of Marshall arrhythmogenesis and vein of Marshall ethanol: A problem with a solution. Heart Rhythm 2018; 15:25-27. [DOI: 10.1016/j.hrthm.2017.09.013] [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: 08/14/2017] [Indexed: 10/18/2022]
|
45
|
Kato K, Igawa O, Morimoto SI, Kametani R, Tanaka A, Hattori H. Ethanol injection into the Marshall vein provoking a pericardial effusion resulting in a fatal complication in a patient with persistent atrial fibrillation. Clin Case Rep 2017; 5:1510-1515. [PMID: 28878915 PMCID: PMC5582217 DOI: 10.1002/ccr3.1076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 06/03/2017] [Accepted: 06/13/2017] [Indexed: 11/05/2022] Open
Abstract
An EIM (ethanol infusion into the vein of Marshall [VOM]) provoked a fatal complication in a chronic hemodialysis patient. Autopsy revealed a lacerated VOM covered with thrombi as the only potential cause. The EIM caused vascular damage and clots resulting in myocardial necrosis and interstitial bleeding around the lacerated VOM.
Collapse
Affiliation(s)
- Kazuo Kato
- Department of Cardiology Nagoya Tokushukai General Hospital Kasugai Japan
| | - Osamu Igawa
- Department of Internal Medicine Nihon Medical University Tokyo Japan
| | | | - Ryosuke Kametani
- Department of Cardiology Nagoya Tokushukai General Hospital Kasugai Japan
| | - Akimitsu Tanaka
- Department of Cardiology Nagoya Tokushukai General Hospital Kasugai Japan
| | - Hideo Hattori
- Department of Cardiology Nagoya Tokushukai General Hospital Kasugai Japan
| |
Collapse
|
46
|
Spectrum of atrial arrhythmias using the ligament of Marshall in patients with atrial fibrillation. Heart Rhythm 2017; 15:17-24. [PMID: 28765086 DOI: 10.1016/j.hrthm.2017.07.033] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND The role of the ligament of Marshall (LOM) in patients with atrial fibrillation (AF) has not been well defined. OBJECTIVE The purpose of this study was to describe the role of the LOM in patients with AF and related arrhythmias. METHODS Fifty-six patients (mean age 63 ± 11 years; persistent AF in 48 [86%]; ejection fraction 0.49 ± 0.13; left atrial diameter 4.7 ± 0.6 cm) with LOM-mediated arrhythmias were included. RESULTS A LOM-pulmonary vein (PV) connection was present in 18 patients (32%) and was eliminated with radiofrequency (RF) ablation at the left lateral ridge or crux (n = 12), at the mitral annulus (n = 3), or with alcohol/ethanol (EtOH) ablation of the vein of Marshall (VOM; n = 3). A LOM-mediated atrial tachycardia (AT) was present in 13 patients (23%). Thirty-one patients with refractory mitral isthmus conduction were referred for potential EtOH ablation. In the 6 patients in whom VOM was injected during perimitral reentry, EtOH resulted in slowing in 3 patients and termination in 1 patient. In others, EtOH infusion resulted in complete isolation of the left-sided PVs and left atrial appendage. Repeat RF and adjunctive EtOH ablation of the VOM tended to be more effective in creating conduction block across the mitral isthmus than RF ablation alone (P = .057). CONCLUSION The LOM is responsible for a variety of arrhythmia mechanisms in patients with AF and atrial tachycardia. It may be ablated at any point along its course, at the mitral annulus, at the lateral ridge/PV antrum, and epicardially in the coronary sinus and the VOM itself. EtOH ablation of the VOM may be an adjunctive strategy in patients with refractory perimitral reentry.
Collapse
|
47
|
Valderrábano M, Morales PF, Rodríguez-Mañero M, Lloves C, Schurmann PA, Dave AS. The Human Left Atrial Venous Circulation as a Vascular Route for Atrial Pharmacological Therapies: Effects of Ethanol Infusion. JACC Clin Electrophysiol 2017; 3:1020-1032. [PMID: 29759706 DOI: 10.1016/j.jacep.2017.02.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 01/31/2017] [Accepted: 02/09/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVES This study catalogued the human venous left atrium (LA) circulation system and the ablative effects of ethanol in different branches. BACKGROUND Vascular routes to target the LA could have significant therapeutic potential. Beyond the vein of Marshall (VOM), the fluoroscopic LA venous anatomy has not been described. METHODS Patients undergoing ethanol infusion in the VOM as adjunctive therapy to atrial fibrillation (AF) catheter ablation were included in this study. Balloon occlusion venograms of the VOM and other LA veins were obtained in 218 patients. RESULTS Sequentially from the coronary sinus (CS) ostium, LA veins included: 1) proximal septal vein draining the inferior septum; 2) inferior LA vein in the annular inferior LA; 3) VOM; 4) LA appendage vein; and 4) anterior LA vein. Additionally, venous sinuses not connected to the CS included roof veins and posterior wall veins, which drained into the right and left atria, respectively. Venous connections between LA veins through capillaries and with pulmonary veins were abundant. Extracardiac collateral vessels were present in 38 patients (17.4%). Ethanol infusion in LA veins led to tissue ablation in their corresponding regions. CONCLUSIONS The atrial venous anatomy is amenable to selective cannulation. Consistent anatomical patterns are present. Targeting atrial tissues through atrial veins can be used for therapeutic purposes.
Collapse
Affiliation(s)
- Miguel Valderrábano
- Division of Cardiac Electrophysiology, Methodist DeBakey Heart and Vascular Center and Houston Methodist Hospital, Houston, Texas.
| | - Percy Francisco Morales
- Division of Cardiac Electrophysiology, Methodist DeBakey Heart and Vascular Center and Houston Methodist Hospital, Houston, Texas
| | - Moisés Rodríguez-Mañero
- Division of Cardiac Electrophysiology, Methodist DeBakey Heart and Vascular Center and Houston Methodist Hospital, Houston, Texas
| | - Candela Lloves
- Division of Cardiac Electrophysiology, Methodist DeBakey Heart and Vascular Center and Houston Methodist Hospital, Houston, Texas
| | - Paul A Schurmann
- Division of Cardiac Electrophysiology, Methodist DeBakey Heart and Vascular Center and Houston Methodist Hospital, Houston, Texas
| | - Amish S Dave
- Division of Cardiac Electrophysiology, Methodist DeBakey Heart and Vascular Center and Houston Methodist Hospital, Houston, Texas
| |
Collapse
|
48
|
LEE JIHYUN, NAM GIBYOUNG, KIM MINSU, HWANG YOUMI, HWANG JONGMIN, KIM JUN, CHOI KEEJOON, KIM YOUHO. Radiofrequency Catheter Ablation Targeting the Vein of Marshall in Difficult Mitral Isthmus Ablation or Pulmonary Vein Isolation. J Cardiovasc Electrophysiol 2017; 28:386-393. [DOI: 10.1111/jce.13161] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 11/04/2016] [Accepted: 12/16/2016] [Indexed: 12/01/2022]
Affiliation(s)
- JI HYUN LEE
- Heart Institute, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
| | - GI-BYOUNG NAM
- Heart Institute, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
| | - MINSU KIM
- Heart Institute, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
| | - YOU MI HWANG
- Heart Institute, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
| | - JONGMIN HWANG
- Heart Institute, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
| | - JUN KIM
- Heart Institute, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
| | - KEE-JOON CHOI
- Heart Institute, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
| | - YOU-HO KIM
- Heart Institute, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
| |
Collapse
|
49
|
Affiliation(s)
- Bruce B Lerman
- Division of Cardiology, Department of Medicine, Cornell University Medical College, New York Presbyterian Hospital, New York, New York, USA
| |
Collapse
|
50
|
Cohen JA, Mansour M. Adjunctive Therapies for Catheter Ablation of Non-Paroxysmal Atrial Fibrillation. J Atr Fibrillation 2016; 9:1490. [PMID: 29250255 PMCID: PMC5673314 DOI: 10.4022/jafib.1490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/19/2016] [Accepted: 12/14/2016] [Indexed: 11/10/2022]
Abstract
The success rate of pulmonary vein antral isolation (PVAI) for paroxysmal atrial fibrillation (AF) has not been realized for persistent or long-standing AF, collectively termed nonparoxysmal AF. Many investigators have described adjunctive ablation strategies to improve outcomes for catheter ablation in patients with non-paroxysmal AF. In this focused review we aim to describe these therapies and current evidence pertaining to their utilization. At present, left atrial posterior wall (LAPW) ablation, non-pulmonary vein (non-PV) trigger ablation and rotor ablation appear to improve outcomes for patients with non-paroxysmal AF when performed in conjunction with PVAI. Randomized controlled trials are necessary to further elucidate such claims.
Collapse
Affiliation(s)
| | - Moussa Mansour
- Massachusetts General Hospital Corrigan Minehan Heart Center
| |
Collapse
|