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Ge WL, Lu YF, Li T, Wang Y, Yin J, Li XR, Jiang JJ, Mi YF, Tung TH, Yan SH. Clinical effect of vein of Marshall ethanol infusion on mitral isthmus ablation. Front Cardiovasc Med 2024; 11:1253554. [PMID: 38374993 PMCID: PMC10875083 DOI: 10.3389/fcvm.2024.1253554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 01/08/2024] [Indexed: 02/21/2024] Open
Abstract
Purpose This study aimed to investigate the effect of Marshall ethanol infusion (VOM-Et) in the vein on mitral isthmus (MI) ablation. Methods Patients with persistent atrial fibrillation (AF) were grouped into vein of VOM-Et combined with radiofrequency (RF) ablation (VOM-Et-RF) and RF groups. The primary outcome was MI block immediate block rate after surgery. Stratified analysis was also performed for factors affecting the outcome measures. Results A total of 118 consecutive patients underwent AF ablation at Taizhou Hospital of Zhejiang Province from January 2018 to December 2021. Successful bidirectional perimitral block was achieved in 96% of patients in VOM-Et-RF (69 of 72) and in 76% of patients in the RF group (35 of 46) (P < 0.01). In the subgroup analysis, male sex, elder than 60 years, Left atrial diameter <55 mm, and AF duration <3 years were associated with the benefits of VOM-Et in AF Patients. Conclusion The vein of Marshall ethanol infusion for catheter ablation can improve the MI block rate. Male sex, elder age, smaller Left atrial diameter and shorter AF duration may have significant benefits for VOM-Et.
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Affiliation(s)
- Wei-Li Ge
- Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
- Department of Cardiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Yi-Fei Lu
- Department of Cardiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Tao Li
- Department of Cardiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Ye Wang
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Jie Yin
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Xin-Ran Li
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Jian-Jun Jiang
- Department of Cardiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Ya-Fei Mi
- Department of Cardiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Tao-Hsin Tung
- Evidence-Based Medicine Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, China
- Key Laboratory of Evidence-Based Radiology of Taizhou, Linhai, Zhejiang, China
| | - Su-Hua Yan
- Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Jinan, China
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Andronache M, Pastorcici A, Amet D, Blendea D, Boudias A, Mazieres G, Rosu R, Cismaru G, Puiu M, Mot S, Serban A, Mottref P, Dauphin C, Moini C, Lellouche N, Massoulié G. Acute mitral isthmus block during catheter ablation with vein of Marshall ethanol infusion: Angiographic considerations. Arch Cardiovasc Dis 2024; 117:119-127. [PMID: 38040560 DOI: 10.1016/j.acvd.2023.11.001] [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: 07/17/2023] [Revised: 10/26/2023] [Accepted: 11/06/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Achieving bidirectional mitral isthmus block is still challenging. Conventional ablation methods involve radiofrequency applications on the endocardial aspect of the lateral mitral isthmus, and often epicardial applications inside the coronary sinus. AIM To evaluate the impact of the systematic use of ethanol infusion in the vein of Marshall on the achievement of acute mitral isthmus block of additional epicardial component lesion. METHODS We evaluated patients referred to two centres for long-standing persistent atrial fibrillation ablation or recurrent peri-mitral flutter. All patients had pulmonary vein isolation and mitral isthmus line using ethanol infusion in the vein of Marshall for the first procedure and additional radiofrequency ablation lesion if necessary. For redo procedures, additional ablations (atrial lines and complex fractionated atrial electrogram ablations, if needed) were also performed. RESULTS We included 149 patients, and ethanol infusion in the vein of Marshall was not performed in 27 patients (18%). Among 122 patients, 115 had long-standing persistent atrial fibrillation (94.2%) and seven had peri-mitral flutter (5.8%). The mean duration of continuous atrial fibrillation was 53 months before ablation. Acute bidirectional mitral isthmus block was obtained in 115 (94.2%) of the 122 patients who received ethanol infusion in the vein of Marshall (77% when considering the total population). The mean radiofrequency delivery time to obtain mitral isthmus block was 2.6minutes for the endocardial mitral isthmus radiofrequency ablation and 2.6minutes for the epicardial mitral isthmus radiofrequency ablation. Failure to obtain mitral isthmus block was associated with increased mitral isthmus length and left atrial dilation. No major complications related to ethanol infusion in the vein of Marshall were observed. CONCLUSION Ethanol infusion in the vein of Marshall, when feasible (82%), was a safe approach to obtaining a high success rate (94%) of acute bidirectional endocardial and epicardial mitral isthmus block.
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Affiliation(s)
- Marius Andronache
- Cardiology Department, CHU Clermont-Ferrand, Clermont University, 63003 Clermont-Ferrand cedex 1, France; Alleray-Labrouste Cardiology Clinics, 75015 Paris, France
| | - Anda Pastorcici
- Cardiology Department, CHU Clermont-Ferrand, Clermont University, 63003 Clermont-Ferrand cedex 1, France
| | - Denis Amet
- Alleray-Labrouste Cardiology Clinics, 75015 Paris, France; Cardiology Department, Georges Pompidou European Hospital, 75015 Paris, France
| | - Dan Blendea
- Cardiology Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400394 Cluj-Napoca, Romania
| | - Antoine Boudias
- Cardiology Department, CHU Clermont-Ferrand, Clermont University, 63003 Clermont-Ferrand cedex 1, France
| | - Guillaume Mazieres
- Cardiology Department, CHU Clermont-Ferrand, Clermont University, 63003 Clermont-Ferrand cedex 1, France
| | - Radu Rosu
- Cardiology Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400394 Cluj-Napoca, Romania
| | - Gabriel Cismaru
- Cardiology Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400394 Cluj-Napoca, Romania
| | - Mihai Puiu
- Cardiology Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400394 Cluj-Napoca, Romania
| | - Stefan Mot
- Cardiology Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400394 Cluj-Napoca, Romania
| | - Adela Serban
- Cardiology Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400394 Cluj-Napoca, Romania
| | - Pascal Mottref
- Cardiology Department, CHU Clermont-Ferrand, Clermont University, 63003 Clermont-Ferrand cedex 1, France
| | - Claire Dauphin
- Cardiology Department, CHU Clermont-Ferrand, Clermont University, 63003 Clermont-Ferrand cedex 1, France
| | - Cyrus Moini
- Department of Cardiology, GHSIF-Melun, 77000 Melun, France
| | - Nicolas Lellouche
- Department of Cardiology, University Hospital Henri-Mondor, AP-HP, 94000 Créteil, France.
| | - Grégoire Massoulié
- Cardiology Department, CHU Clermont-Ferrand, Clermont University, 63003 Clermont-Ferrand cedex 1, France
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Mizuno Y, Kumazawa D, Maeda M, Onodera K, Nomura T, Yamashita K. Optimal treatment of biatrial tachycardia diagnosed by one-chamber mapping within an ultrahigh-resolution mapping system. J Cardiol Cases 2024; 29:19-22. [PMID: 38188324 PMCID: PMC10770096 DOI: 10.1016/j.jccase.2023.09.001] [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: 04/06/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 01/09/2024] Open
Abstract
Biatrial tachycardia (BiAT) is a rare arrhythmia, and identification of the re-entry circuit is often complicated. By creating an activation map of the right atrium, left atrium, and coronary sinus as a single chamber, the LUMIPOINT module of the Rhythmia mapping system (Boston Scientific, Marlborough, MA, USA) can be used in real time to make an accurate diagnosis. Ablation of the Bachmann bundle is a feasible way to terminate BiAT, but might cause interatrial conduction delay and electrical isolation of the left atrial appendage. Chemical ablation into the vein of Marshall might be the more beneficial treatment, avoiding any potential interatrial conduction delay.
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Affiliation(s)
- Yosuke Mizuno
- Heart Rhythm Center, Department of Cardiovascular Medicine, Sendai Kosei Hospital, Sendai-shi, Miyagi, Japan
| | - Daiki Kumazawa
- Heart Rhythm Center, Department of Cardiovascular Medicine, Sendai Kosei Hospital, Sendai-shi, Miyagi, Japan
| | - Manabu Maeda
- Heart Rhythm Center, Department of Cardiovascular Medicine, Sendai Kosei Hospital, Sendai-shi, Miyagi, Japan
| | - Kosuke Onodera
- Heart Rhythm Center, Department of Cardiovascular Medicine, Sendai Kosei Hospital, Sendai-shi, Miyagi, Japan
| | - Takehiro Nomura
- Heart Rhythm Center, Department of Cardiovascular Medicine, Sendai Kosei Hospital, Sendai-shi, Miyagi, Japan
| | - Kennosuke Yamashita
- Heart Rhythm Center, Department of Cardiovascular Medicine, Sendai Kosei Hospital, Sendai-shi, Miyagi, Japan
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Ge W, Li T, Lu Y, Jiang J, Tung T, Yan S. Efficacy and feasibility of vein of Marshall ethanol infusion during persistent atrial fibrillation ablation: A systematic review and meta-analysis. Clin Cardiol 2024; 47:e24178. [PMID: 37933170 PMCID: PMC10766122 DOI: 10.1002/clc.24178] [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: 06/14/2023] [Revised: 09/30/2023] [Accepted: 10/16/2023] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND Catheter ablation (CA) is currently used to treat persistent atrial fibrillation (PeAF). However, its effectiveness is limited. This study aimed to estimate the effectiveness of the vein of Marshall absolute ethanol injection (VOM-EI) for PeAF ablation. HYPOTHESIS Adjunctive vein of Marshall ethanol injection (VOM-EI) strategies are more effective than conventional catheter ablation (CA) and have similar safety outcomes. METHODS We extensively searched the literature for studies evaluating the effectiveness and safety of VOM-EI + CA compared with CA alone. The primary endpoint was the rate of acute bidirectional block of the isthmus of the mitral annulus (MIBB). The secondary endpoints were atrial fibrillation (AF) or atrial tachycardia (AT) recurrence over 30 seconds after a 3-month blanking period. Weighted pooled risk ratios (RRs) and corresponding 95% confidence intervals (CIs) were calculated using a random effects model. RESULTS Based on the selection criteria, nine studies were included in this systematic review, including patients with AF (n = 2508), persistent AF (n = 1829), perimitral flutter (n = 103), and perimitral AT (n = 165). There were 1028 patients in the VOM-EI + CA group and 1605 in the CA alone group. The VOM-EI + CA group showed a lower rate of AF/AT relapse (RR = 0.70; 95% CI = 0.53-0.91; p = .008) and a higher rate of acute MIBB (RR = 1.29; 95% CI = 1.11-1.50; p = .0007) than the CA alone group. CONCLUSION Our meta-analysis revealed that adjunctive VOM-EI strategies are more effective than conventional CA and have similar safety outcomes.
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Affiliation(s)
- Wei‐Li Ge
- Department of CardiologyShandong Provincial Qianfoshan HospitalShandong UniversityJinanShandongChina
- Department of CardiologyTaizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical UniversityZhejiangChina
| | - Tao Li
- Department of CardiologyTaizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical UniversityZhejiangChina
| | - Yi‐Fei Lu
- Department of CardiologyTaizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical UniversityZhejiangChina
| | - Jian‐Jun Jiang
- Department of CardiologyTaizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical UniversityZhejiangChina
| | - Tao‐Hsin Tung
- Evidence‐Based Medicine Center, Taizhou Hospital of Zhejiang ProvinceWenzhou Medical UniversityLinhaiChina
- Department of UrologyTaizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Enze Hospital, Taizhou Enze Medical Center (Group), Affilitated to Hangzhou Medical CollegeTaizhouZhejiangChina
- Key Laboratory of Evidence‐Based Radiology of TaizhouLinhaiZhejiangChina
| | - Su‐Hua Yan
- Department of CardiologyShandong Provincial Qianfoshan HospitalShandong UniversityJinanShandongChina
- Department of CardiologyShandong Provincial Qianfoshan HospitalJinanChina
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Kueffer T, Seiler J, Madaffari A, Mühl A, Asatryan B, Stettler R, Haeberlin A, Noti F, Servatius H, Tanner H, Baldinger SH, Reichlin T, Roten L. Pulsed-field ablation for the treatment of left atrial reentry tachycardia. J Interv Card Electrophysiol 2023; 66:1431-1440. [PMID: 36496543 PMCID: PMC10457215 DOI: 10.1007/s10840-022-01436-1] [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: 10/26/2022] [Accepted: 11/22/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND We describe our initial experience using a multipolar pulsed-field ablation catheter for the treatment of left atrial (LA) reentry tachycardia. METHODS We included all patients with LA reentry tachycardia treated with PFA at our institution between September 2021 and March 2022. The tachycardia mechanism was identified using 3D electro-anatomical mapping (3D-EAM). Subsequently, a roof line, anterior line, or mitral isthmus line was ablated as appropriate. Roof line ablation was always combined with LA posterior wall (LAPW) ablation. Positioning of the PFA catheter was guided by a 3D-EAM system and by fluoroscopy. Bidirectional block across lines was verified using standard criteria. Additional radiofrequency ablation (RFA) was used to achieve bidirectional block as necessary. RESULTS Among 22 patients (median age 70 (59-75) years; 9 females), we identified 27 LA reentry tachycardia: seven roof dependent macro-reentries, one posterior-wall micro-reentry, twelve peri-mitral macro-reentries, and seven anterior-wall micro-reentries. We ablated a total of 20 roof lines, 13 anterior lines, and 6 mitral isthmus lines. Additional RFA was necessary for two anterior lines (15%) and three mitral isthmus lines (50%). Bidirectional block was achieved across all roof lines, 92% of anterior lines, and 83% of mitral isthmus lines. We observed no acute procedural complications. CONCLUSION Ablation of a roof line and of the LAPW is feasible, effective, and safe using this multipolar PFA catheter. However, the catheter is less suited for ablation of the mitral isthmus and the anterior line. A focal pulsed-field ablation catheter may be more effective for ablation of these lines. This study shows the feasibility to ablate linear lesions with a multipolar pulsed-field ablation catheter. 27 left atrial reentry tachycardia were treated in 22 patients.
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Affiliation(s)
- Thomas Kueffer
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Jens Seiler
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Antonio Madaffari
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Aline Mühl
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Babken Asatryan
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Robin Stettler
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Andreas Haeberlin
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
- ARTORG Center, University of Bern, Bern, Switzerland
| | - Fabian Noti
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Helge Servatius
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Hildegard Tanner
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Samuel H Baldinger
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Tobias Reichlin
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland
| | - Laurent Roten
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010, Bern, Switzerland.
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Gao MY, Sang CH, Huang LH, Lai YW, Guo Q, Liu XX, Zuo S, Li CY, Wang W, Guo XY, Zhao X, Li SN, Jiang CX, Liu N, Tang RB, Du X, Long DY, Dong JZ, Ma CS. Vein of Marshall ethanol infusion: First-step or adjunctive choice for perimitral atrial tachycardia? Pacing Clin Electrophysiol 2023; 46:20-30. [PMID: 36401609 DOI: 10.1111/pace.14617] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/23/2022] [Accepted: 11/01/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND Perimitral atrial tachycardia (PMAT) is the most frequent type of iatrogenic atrial tachycardia (AT) after atrial fibrillation (AF) ablation. Vein of Marshall ethanol infusion (EIVOM) is a promising technique in mitral isthmus (MI) ablation. METHODS A total of 165 patients with PMAT were divided into three groups according to ablation strategies, including RF only group (n = 89), RF-EIVOM group (initial RF ablation with adjunctive EIVOM, n = 28), and EIVOM-RF group (first-step EIVOM with touch-up RF ablation, n = 48). Acute and follow-up procedure outcomes were evaluated. RESULTS PMAT terminated in 89.9%, 89.3%, and 93.7% of patients in RF only, RF-EIVOM and EIVOM-RF groups, respectively (p = .715), with complete MI block achieved in 80.9%, 89.3%, and 95.8% of patients (EIVOM-RF vs. RF only, p = .012). First-step utilization of EIVOM was associated with a significant shortening of RF ablation time at MI (EIVOM-RF 2.1 ± 1.3 min, RF only 7.9 ± 5.9 min, RF-EIVOM 6.8 ± 5.8 min; p < .001) and a decrease in the proportion of patients need ablation within coronary sinus (CS, EIVOM-RF 14.6%, RF only 61.8%, RF-EIVOM 64.3%; p < .001). After a mean follow-up of 12.1 ± 6.2 months, AF/AT recurred in 39 (43.8%), 6 (21.4%), and 12 (25.0%) patients in RF only, RF-EIVOM, and EIVOM-RF group (RF-EIVOM vs. RF only, p = .026; EIVOM-RF vs. RF only, p = .022). CONCLUSIONS EIVOM was associated with an enhanced acute MI block rate as well as reduced AF/AT recurrence. First-step utilization of EIVOM promises to significantly simplify the RF ablation process. CONDENSED ABSTRACT PMAT is the most common type of iatrogenic AT after AF ablation procedures. EIVOM contributed to a higher acute MI block rate and lower arrhythmia recurrence risk during follow-up. First-step utilization of EIVOM significantly reduced the need for radiofrequency ablation at MI and inside CS with the advantage of creating a homogenous, transmural lesion and eliminating epicardial connections.
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Affiliation(s)
- Ming-Yang Gao
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Cai-Hua Sang
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Li-Hong Huang
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Yi-Wei Lai
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Qi Guo
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Xiao-Xia Liu
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Song Zuo
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Chang-Yi Li
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Wei Wang
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Xue-Yuan Guo
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Xin Zhao
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Song-Nan Li
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Chen-Xi Jiang
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Nian Liu
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Ri-Bo Tang
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Xin Du
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - De-Yong Long
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Jian-Zeng Dong
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
| | - Chang-Sheng Ma
- Department of Cardiology, Beijing Anzhen Hospital, National Clinical Research Centre for Cardiovascular Diseases, Capital Medical University, Beijing, China
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Kong L, Shuang T, Li Z, Zou Z, Pu J, Wang XH. Impact of technical aspects of vein of Marshall ethanol infusion on mitral isthmus block for persistent atrial fibrillation ablation. Front Cardiovasc Med 2022; 9:1031673. [PMID: 36267635 PMCID: PMC9576952 DOI: 10.3389/fcvm.2022.1031673] [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: 08/30/2022] [Accepted: 09/16/2022] [Indexed: 12/04/2022] Open
Abstract
Aims Ethanol infusion into the VOM (EIVOM) adjunctive to radiofrequency catheter ablation (RFCA) was a novel approach facilitating mitral isthmus (MIth) block for persistent atrial fibrillation (PeAF); However, there were remarkable disparities in its technical aspects. This study aimed to evaluate the impact of EIVOM technical aspects on acute MIth block. Methods Eighty consecutive patients (63 males, average age 66.4 ± 8.6 years) undergoing de novo PeAF ablation were assigned to different groups. The procedural parameters in “EIVOM first” (n = 13) or “RFCA first” (n = 13) as well as small dose ([SD], ≤4 ml, n = 26) or big dose ([BD], >4 ml, n = 54) approaches were analyzed to identify the predictors for acute MIth block. Results Compared with the “EIVOM first” approach, the “RFCA first” approach was associated with longer procedural and MIth ablation time (134 ± 27 min vs. 112 ± 17 min; 14.9 ± 5.5 min vs. 9.3 ± 5.1 min, both P < 0.05, respectively), but with comparable success of MIth block. The ethanol dose was 6.3 ± 1.5 ml in BD group vs. 3.1 ± 1.0 ml in SD group (P < 0.001) and was correlated significantly with the size of Δlow voltage area (r = 0.66, P < 0.001). The success of MIth block was 92.6% in BD group vs. 73.1% in SD group, P = 0.03. The ethanol dose >5.75 ml independently predicted successful MIth block (OR: 0.428, 95% CI: 0.219–0.839, P = 0.01). Conclusions Despite the comparable effectiveness on MIth block, the “EIVOM first” approach was associated with shorter procedural and MIth ablation time than the “RFCA first” approach. The ethanol dose in EIVOM was an independent predictor for MIth block.
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Li F, Sun JY, Wu LD, Zhang L, Qu Q, Wang C, Qian LL, Wang RX. The Long-Term Outcomes of Ablation With Vein of Marshall Ethanol Infusion vs. Ablation Alone in Patients With Atrial Fibrillation: A Meta-Analysis. Front Cardiovasc Med 2022; 9:871654. [PMID: 35571170 PMCID: PMC9098965 DOI: 10.3389/fcvm.2022.871654] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/29/2022] [Indexed: 01/22/2023] Open
Abstract
Background The long-term outcomes of ablation with vein of Marshall ethanol infusion (VOM-ABL) compared with ablation alone in patients with atrial fibrillation (AF) remains elusive. We aimed to explore whether VOM-ABL showed better long-term benefits and screen the potential determinants of outcome impact of VOM-ABL procedure. Methods PubMed, Cochrane Library, Web of Science, and Embase were searched up to 1st September 2021. Studies comparing the long-term (one-year or longer) outcomes between VOM-ABL and ablation alone were included. Subgroup analysis identified potential determinants for VOM-ABL procedure. Results Compared with ablation alone, VOM-ABL was associated with a significantly higher rate of long-term freedom from AF/AT (risk ratio [RR], 1.28; 95% confidence interval [CI], 1.12–1.47; p = 0.00) and successful mitral isthmus (MI) block (RR, 1.52; 95% CI, 1.16–1.99; p = 0.00), whereas, there was no significant difference in pericardial effusion, stroke/transient ischemic attack (TIA), and all-cause death. Subgroup analysis identified two significant treatment-covariate interactions: one was ablation strategy subgroup (pulmonary vein isolation plus linear and/or substrate ablation [PVI+]; RR, 1.41; 95% CI, 1.27–1.56 vs. PVI; RR, 1.05; 95% CI, 0.92–1.19, p = 0.00 for interaction) for freedom from AF/AT, while the other was VOM-ABL group sample size subgroup (≥ 100; RR, 1.98; 95% CI, 1.24–3.17 vs. <100; RR, 1.20; 95% CI, 1.10–1.30, p = 0.04 for interaction) for MI block. Conclusions This meta-analysis demonstrates that VOM-ABL has superior efficacy and comparable safety over ablation alone in AF patients with long-term follow-up. Moreover, PVI+ and VOM-ABL group sample size ≥ 100 may be associated with a great impact on freedom from AF/AT and MI block, respectively.
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Affiliation(s)
- Feng Li
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Jin-Yu Sun
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Li-Da Wu
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Lei Zhang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Qiang Qu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chao Wang
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ling-Ling Qian
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Ru-Xing Wang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
- *Correspondence: Ru-Xing Wang
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