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Masuda M, Inoue K, Tanaka N, Watanabe T, Makino N, Egami Y, Oka T, Minamiguchi H, Miyoshi M, Okada M, Kanda T, Mano T, Matsuda Y, Uematsu H, Sakio T, Kawasaki M, Sunaga A, Sotomi Y, Dohi T, Nakatani D, Hikoso S, Sakata Y. Long-Term Impact of Additional Ablation After Pulmonary Vein Isolation: Results From EARNEST-PVI Trial. J Am Heart Assoc 2023; 12:e029651. [PMID: 37642022 PMCID: PMC10547359 DOI: 10.1161/jaha.123.029651] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 05/30/2023] [Indexed: 08/31/2023]
Abstract
Background An optimal strategy for left atrial ablation in addition to pulmonary vein isolation (PVI) in patients with persistent atrial fibrillation (AF) has not been determined. Methods and Results We conducted an extended follow-up of the multicenter randomized controlled EARNEST-PVI (Efficacy of Pulmonary Vein Isolation Alone in Patients With Persistent Atrial Fibrillation) trial, which compared 12-month rhythm outcomes in patients with persistent AF between patients randomized to a PVI-alone strategy (n=248) or PVI-plus strategy (n=248; PVI followed by left atrial additional ablation, including linear ablation or ablation targeting areas with complex fractionated electrograms). The present study extended the follow-up period to 3 years after enrollment. Outcomes were compared not only between randomly allocated groups but also between on-treatment groups categorized by actually created ablation lesions. Recurrence rate of AF or atrial tachycardia (AT) was lower in the randomly allocated to PVI-plus group than the PVI-alone group (29.0% versus 37.5%, P=0.036). On-treatment analysis revealed that patients with PVI+linear ablation (n=205) demonstrated a lower AF/AT recurrence rate than those with PVI only (26.3% versus 37.8%, P=0.007). In contrast, patients with PVI+complex fractionated electrograms ablation (n=37) had an AF/AT recurrence rate comparable to that of patients with PVI only (40.5% versus 37.8%, P=0.76). At second ablation in 126 patients with AF/AT recurrence, ATs excluding common atrial flutter were more frequent in patients with PVI+linear ablation than in those with PVI only (32.6% versus 5.7%, P<0.0001). Conclusions Left atrial ablation in addition to PVI was efficacious during 3-year follow-up. Linear ablation was superior to other ablation strategies but may increase iatrogenic ATs. Registration URL: http://www.umin.ac.jp/ctr/index-j.htm; Unique identifier: UMIN000019449.
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Affiliation(s)
| | - Koichi Inoue
- Cardiovascular DivisionNational Hospital Organization Osaka National HospitalOsakaJapan
| | - Nobuaki Tanaka
- Cardiovascular CenterSakurabashi Watanabe HospitalOsakaJapan
| | | | | | | | - Takafumi Oka
- Department of Cardiovascular MedicineOsaka University Graduate School of MedicineOsakaJapan
| | | | - Miwa Miyoshi
- Department of CardiologyOsaka Hospital, Japan Community Healthcare OrganizationOsakaJapan
| | - Masato Okada
- Cardiovascular CenterSakurabashi Watanabe HospitalOsakaJapan
| | - Takashi Kanda
- Cardiovascular DivisionOsaka Police HospitalOsakaJapan
| | - Toshiaki Mano
- Cardiovascular CenterKansai Rosai HospitalAmagasakiJapan
| | | | | | | | - Masato Kawasaki
- Division of CardiologyOsaka General Medical CenterOsakaJapan
| | - Akihiro Sunaga
- Department of Cardiovascular MedicineOsaka University Graduate School of MedicineOsakaJapan
| | - Yohei Sotomi
- Department of Cardiovascular MedicineOsaka University Graduate School of MedicineOsakaJapan
| | - Tomoharu Dohi
- Department of Cardiovascular MedicineOsaka University Graduate School of MedicineOsakaJapan
| | - Daisaku Nakatani
- Department of Cardiovascular MedicineOsaka University Graduate School of MedicineOsakaJapan
| | - Shungo Hikoso
- Department of Cardiovascular MedicineOsaka University Graduate School of MedicineOsakaJapan
| | - Yasushi Sakata
- Department of Cardiovascular MedicineOsaka University Graduate School of MedicineOsakaJapan
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Liu HT, Wo HT, Chang PC, Lee HL, Wen MS, Chou CC. Long-term efficacy of sodium-glucose cotransporter 2 inhibitor therapy in preventing atrial fibrillation recurrence after catheter ablation in type 2 diabetes mellitus patients. Heliyon 2023; 9:e16835. [PMID: 37332966 PMCID: PMC10272333 DOI: 10.1016/j.heliyon.2023.e16835] [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: 01/27/2023] [Revised: 05/26/2023] [Accepted: 05/30/2023] [Indexed: 06/20/2023] Open
Abstract
Background Sodium-glucose cotransporter 2 inhibitors (SGLT2i) reduce new-onset atrial fibrillation (AF) in patients with type 2 diabetes mellitus (T2DM). We aimed to determine the long-term effects of SGLT2i on atrial tachyarrhythmia recurrence after catheter ablation (CA) in T2DM patients. Methods This retrospective study enrolled consecutive patients with T2DM undergoing CA for AF between January 2016 and December 2021. Patient baseline demographic characteristics and use of anti-diabetic and anti-arrhythmic medications were analyzed. Echocardiographic parameters were obtained one day and 6 months after CA. Results Our study population comprised 122 patients (70% paroxysmal AF). The baseline patient characteristics were similar between the SGLT2i-treated group (n = 45) and the non-SGLT2i-treated group (n = 77) except for stroke. At 6-month follow-up, body-mass index (BMI) was significantly decreased and left ventricular ejection fraction (LVEF) was significantly increased only in the SGLT2i group. E/e' was decreased 6 months after CA in both groups. During a mean follow-up of 33.7 ± 21.6 months, 22 of 122 patients had atrial tachyarrhythmia recurrence. The long-term atrial tachyarrhythmia-free survival rate was significantly higher in the SGLT2i-treated patients, and multivariate analysis revealed that AF type and SGLT2i use were independently associated with atrial tachyarrhythmia recurrence after CA. Conclusion The use of SGLT2i and AF type were independent risk factors associated with atrial tachyarrhythmia recurrence after CA in T2DM patients with AF. This result was at least partly due to the pleiotropic effects of SGLT2i on BMI reduction and left ventricular function improvement.
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Affiliation(s)
- Hao-Tien Liu
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, 33305 Taoyuan, Taiwan
| | - Hung-Ta Wo
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, 33305 Taoyuan, Taiwan
| | - Po-Cheng Chang
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, 33305 Taoyuan, Taiwan
- School of Medicine, Chang Gung University College of Medicine, 33302 Taoyuan, Taiwan
| | - Hui-Ling Lee
- Department of Anesthesia, Chang Gung Memorial Hospital, Taipei Branch, 10507 Taipei, Taiwan
| | - Ming-Shien Wen
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, 33305 Taoyuan, Taiwan
- School of Medicine, Chang Gung University College of Medicine, 33302 Taoyuan, Taiwan
| | - Chung-Chuan Chou
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, 33305 Taoyuan, Taiwan
- School of Medicine, Chang Gung University College of Medicine, 33302 Taoyuan, Taiwan
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Moustafa A, Karim S, Kahaly O, Elzanaty A, Meenakshisundaram C, Abi-Saleh B, Eltahawy E, Chacko P. Low voltage area guided substrate modification in nonparoxysmal atrial fibrillation: A systematic review and meta-analysis. J Cardiovasc Electrophysiol 2023; 34:455-464. [PMID: 36453469 DOI: 10.1111/jce.15764] [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: 10/03/2022] [Revised: 11/05/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Low voltage areas (LVAs) on left atrial (LA) bipolar voltage mapping correlate with areas of fibrosis. LVAs guided substrate modification was hypothesized to improve the success rate of atrial fibrillation (AF) ablation particularly in nonparoxysmal AF population. However, randomized controlled trials (RCTs) and observational studies yielded mixed results. METHODS The databases of Pubmed, EMBASE and Cochrane Central databases were searched from inception to August 2022. Relevant studies comparing LVA guided substrate modification (LVA ablation) versus conventional AF ablation (non LVA ablation) in patients with nonparoxysmal AF were identified and a meta-analysis was performed (Graphical Abstract image). The efficacy endpoints of interest were recurrence of AF and the need for repeat ablation at 1-year. The safety endpoint of interest was adverse events for both groups. Procedure related endpoints included total procedure time and fluoroscopy time. RESULTS A total of 11 studies with 1597 patients were included. A significant reduction in AF recurrence at 1-year was observed in LVA ablation versus non LVA ablation group (risk ratio [RR] 0.63 (27% vs. 36%),95% confidence interval [CI] 0.48-0.62, p < .001]. Also, redo ablation was significantly lower in LVA ablation group (RR 0.52[18% vs. 26.7%], 95% CI 0.38-0.69, p < .00133). No difference was found in the overall adverse event (RR 0.7 [4.3% vs. 5.4%], 95% CI 0.36-1.35, p = .29). CONCLUSION LVA guided substrate modification provides significant reduction in recurrence of all atrial arrhythmias at 1-year compared with non LVA approaches in persistent and longstanding persistent AF population without increase in adverse events.
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Affiliation(s)
| | - Saima Karim
- Division of Cardiovascular Medicine, Heart and Vascular Institute, MetroHealth Medical Center/Case Western Reserve University, Cleveland, Ohio, USA
| | - Omar Kahaly
- Division of Cardiovascular Medicine, Promedica-Toledo Hospital, Toledo, Ohio, USA
| | - Ahmed Elzanaty
- Division of Cardiovascular Medicine, University of Toledo, Toledo, Ohio, USA
| | | | - Bernard Abi-Saleh
- Division of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ehab Eltahawy
- Division of Cardiovascular Medicine, University of Toledo, Toledo, Ohio, USA
| | - Paul Chacko
- Division of Cardiovascular Medicine, University of Toledo, Toledo, Ohio, USA
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Zhou Y, Zhang H, Yan P, Zhou P, Wang P, Li X. Efficacy of left atrial low-voltage area-guided catheter ablation of atrial fibrillation: An updated systematic review and meta-analysis. Front Cardiovasc Med 2022; 9:993790. [DOI: 10.3389/fcvm.2022.993790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/24/2022] [Indexed: 11/18/2022] Open
Abstract
AimsThis study aimed to evaluate the efficacy of low-voltage area (LVA)-guided substrate modification catheter ablation in patients with atrial fibrillation (AF).MethodsSystematic searches of the PubMed, EMBASE, and Cochrane databases were performed from inception to July 2022 for all available studies. The effect estimates were combined with the Mantel–Haenszel random-effects model. Subgroup analyses, sensitivity analysis, and meta-regression were conducted to explore the sources of statistical heterogeneity.ResultsA total of 16 studies involving 1942 subjects (mean age: 61 ± 10 years, 69% male) were identified. All studies included patients with paroxysmal AF, non-paroxysmal AF, or both. At a mean follow-up of 18.9 months, patients who underwent LVA-guided substrate modification ablation had significantly higher freedom from all-atrial tachycardia recurrence than patients who underwent control ablation [67.7% vs. 48.9%, risk ratios (RR) 0.64, 95% confidence interval (CI) 0.55–0.76, P < 0.001], with 36% relative risk and 18.7% absolute risk reductions in all-atrial tachycardia recurrence. Subgroup analysis based on AF types demonstrated that the decreased risk of all-atrial tachycardia recurrence was present predominantly in non-paroxysmal AF compared with paroxysmal AF (RR 0.60, 95% CI 0.52–0.69 vs. RR 0.96, 95% CI 0.81–1.13).ConclusionLow-voltage area-guided substrate modification ablation combined with PVI appears to have a significant beneficial effect of improving freedom from all-atrial tachycardia recurrence, especially in patients with non-paroxysmal AF.
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Liu HT, Lee HL, Chou CC. From Left Atrial Dimension to Curved M-Mode Speckle-Tracking Images: Role of Echocardiography in Evaluating Patients with Atrial Fibrillation. Rev Cardiovasc Med 2022; 23:171. [PMID: 39077610 PMCID: PMC11273969 DOI: 10.31083/j.rcm2305171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/16/2022] [Accepted: 03/24/2022] [Indexed: 07/31/2024] Open
Abstract
Left atrial (LA) enlargement and dysfunction increase the risk of atrial fibrillation (AF). Traditional echocardiographic evaluation of the left atrium has been limited to dimensional and semi-quantification measurement of the atrial component of ventricular filling, with routine measurement of LA function not yet implemented. However, functional parameters, such as LA emptying fraction (LAEF), may be more sensitive markers for detecting AF-related changes than LA enlargement. Speckle-tracking echocardiography has proven to be a feasible and reproducible technology for the direct evaluation of LA function. The clinical application, advantages, and limitations of LA strain and strain rate need to be fully understood. Furthermore, the prognostic value and utility of this technique in making therapeutic decisions for patients with AF need further elucidation. Deep learning neural networks have been successfully adapted to specific tasks in echocardiographic image analysis, and fully automated measurements based on artificial intelligence could facilitate the clinical diagnostic use of LA speckle-tracking images for classification of AF ablation outcome. This review describes the fundamental concepts and a brief overview of the prognostic utility of LA size, LAEF, LA strain and strain rate analyses, and the clinical implications of the use of these measures.
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Affiliation(s)
- Hao-Tien Liu
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou branch, 33304 Taoyuan, Taiwan
| | - Hui-Ling Lee
- Department of Anesthesia, Chang Gung Memorial Hospital, Taipei branch, 10507 Taipei, Taiwan
| | - Chung-Chuan Chou
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou branch, 33304 Taoyuan, Taiwan
- School of Medicine, Chang Gung University College of Medicine, 33302 Taoyuan, Taiwan
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Yang CH, Liu HT, Lee HL, Lin FC, Chou CC. Left atrial booster-pump function as a predictive parameter for atrial fibrillation in patients with severely dilated left atrium. Quant Imaging Med Surg 2022; 12:2523-2534. [PMID: 35371928 PMCID: PMC8923837 DOI: 10.21037/qims-21-954] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/12/2022] [Indexed: 03/22/2024]
Abstract
BACKGROUND Left atrial (LA) dimension ≥50 mm had approximately four times the risk of developing atrial fibrillation (AF). The aim of this study was to investigate whether the application of clinical and echocardiographic parameters could differentiate between the patients having severely dilated left atrium with and without AF. METHODS This retrospective cross-sectional study enrolled consecutive patients with LA dimension ≥50 mm and divided them into three groups: no AF (no-AF), paroxysmal AF (PAF) and non-paroxysmal AF (non-PAF) groups. For PAF and non-PAF groups, all patients underwent radiofrequency ablation, and the echocardiographic parameters were obtained on the next day after ablation. RESULTS Our study population comprised 160 patients, including 80, 53, and 27 patients in the non-AF, PAF and non-PAF groups, respectively. The no-AF group had a significantly higher body mass index (kg/m2) (29.31±6.27, 27.58±4.12 and 26.57±2.81, P=0.01), and a higher prevalence of diabetes mellitus (DM) [31 (38.80%), 13 (25.00%) and 4 (14.80%), P=0.01] and hypertension [67 (83.80%), 34 (65.40%), and 19 (70.40%), P=0.04], but a lower prevalence of rheumatic heart disease (RHD) [3 (3.80%), 6 (11.50%) and 5 (18.50%), P=0.02] and sick sinus syndrome [0 (0.00%), 6 (11.50%) and 4 (14.80%), P=0.045]. Echocardiographic studies showed that the non-AF group had significantly smaller LA minimal volume index (24.89±9.74, 34.06±19.38 and 42.83±17.44 mL/m2, P<0.01), higher LA emptying fraction (51.99%±13.97%, 38.40%±15.96% and 33.89%±10.73%, P<0.01), longitudinal strain (23.87%±7.72%, 17.11%±8.52% and 12.38%±4.28%, P<0.01) and strain rate than the AF groups. The multivariate analysis showed that the late diastolic component of LA strain rate was the only independent factor associated with the presence of AF (odds ratio, 21.69; 95% CI, 9.77-48.13, P<0.01). CONCLUSIONS LA function plays an important role in the absence of AF in patients with LA dimension ≥50 mm; the late diastolic component of LA strain rate was the only independent variable on multivariate analysis.
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Affiliation(s)
- Chia-Hung Yang
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan
- Department of Internal Medicine, New Taipei Municipal TuCheng Hospital, New Taipei
| | - Hao-Tien Liu
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan
| | - Hui-Ling Lee
- Department of Anesthesia, Chang Gung Memorial Hospital, Taipei Branch, Taipei
| | - Fen-Chiung Lin
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan
| | - Chung-Chuan Chou
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan
- Chang Gung University College of Medicine, Taoyuan
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Im SI, Park KM. What Is Better Predictor of Late Recurrence after Radiofrequency Catheter Ablation for Atrial Fibrillation? Korean Circ J 2022; 52:379-381. [PMID: 35502568 PMCID: PMC9064699 DOI: 10.4070/kcj.2022.0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/16/2022] [Accepted: 03/24/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- Sung Il Im
- Division of Cardiology, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
| | - Kyoung-Min Park
- Division of Cardiology, Department of Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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