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Silva Cunha P, Portugal G, Laranjo S, Alves M, Luísa Papoila A, Valente B, Sofia Delgado A, Lousinha A, Paulo M, Brás M, Guerra C, Cruz Ferreira R, Martins Oliveira M. The atrial fibrillation burden during the blanking period is predictive of time to recurrence after catheter ablation. IJC HEART & VASCULATURE 2022; 43:101138. [PMID: 36275421 PMCID: PMC9579489 DOI: 10.1016/j.ijcha.2022.101138] [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: 07/31/2022] [Revised: 09/22/2022] [Accepted: 10/11/2022] [Indexed: 11/05/2022]
Abstract
Objective This study aimed to assess whether atrial fibrillation (AF) occurrence or its corresponding daily mean burden (in minutes/day) during the mid to late blanking period after pulmonary vein isolation (PVI), predicts AF recurrence. Methods Analysis of consecutive first PVI ablation patients undergoing prolonged electrocardiogram (ECG) monitoring during the second and third months after PVI. The clinical variables, total AF burden, and their relationship with time to recurrence were studied. Results 477 patients with a mean age of 56.9 (SD = 12.3) years (63.7 % male; 71.7 % paroxysmal AF), from which 317 (66.5 %) had an external event recorder between 30 and 90 days after ablation. Median follow-up of 16.0 (P 25:12.0: P 75:33.0) months, 177 (37 %) patients had an AF recurrence, with 106 (22.2 %) having the first episode after 12 months of follow-up. In the group of patients with an event recorder, 80 (25.2 %) had AF documented during the blanking period. Multivariable analysis showed that AF during the blanking period was associated with a 4-fold higher risk of recurrence (HR: 3.98; 95 %CI: 2.95–5.37), and, compared to patients in sinus rhythm, those with an AF burden ≥ 23 min/day had an approximately 7-fold higher risk of recurrence (HR estimate: 6.79; 95 %CI: 4.56–10.10). Conclusions The probability of experiencing AF recurrence can be predicted by atrial tachyarrhythmia episodes during the second and third months after PVI. Atrial arrhythmias burden > 23 min/day has a high predictive ability for recurrence.
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Affiliation(s)
- Pedro Silva Cunha
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal,LisbonSchool of Medicine, Universidade de Lisboa, Lisbon, Portugal,Corresponding author at: Santa Marta Hospital, Cardiology Service, Arrhythmology, Pacing, and Electrophysiology Unit, R. de Santa Marta 50, 1169-024 Lisboa, Portugal.
| | - Guilherme Portugal
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal,LisbonSchool of Medicine, Universidade de Lisboa, Lisbon, Portugal
| | - Sérgio Laranjo
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal,NOVAMedical School/Faculdade de Ciências Médicas, Universidade Nova de Lisboa and CEAUL (Center of Statistics and Its Applications), Lisbon, Portugal,ComprehensiveHealth Research Center, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Marta Alves
- NOVAMedical School/Faculdade de Ciências Médicas, Universidade Nova de Lisboa and CEAUL (Center of Statistics and Its Applications), Lisbon, Portugal,Epidemiology and Statistics Unit, Research Centre, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Ana Luísa Papoila
- NOVAMedical School/Faculdade de Ciências Médicas, Universidade Nova de Lisboa and CEAUL (Center of Statistics and Its Applications), Lisbon, Portugal,Epidemiology and Statistics Unit, Research Centre, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Bruno Valente
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Ana Sofia Delgado
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Ana Lousinha
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Margarida Paulo
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Manuel Brás
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Cátia Guerra
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Rui Cruz Ferreira
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Mário Martins Oliveira
- Arrhythmology, Pacing and Electrophysiology Unit, Cardiology Service, Santa Marta Hospital, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal,LisbonSchool of Medicine, Universidade de Lisboa, Lisbon, Portugal
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Motoc A, Scheirlynck E, Roosens B, Luchian ML, Chameleva H, Gevers M, Galloo X, von Kemp B, de Asmundis C, Magne J, Droogmans S, Cosyns B. Additional value of left atrium remodeling assessed by three-dimensional echocardiography for the prediction of atrial fibrillation recurrence after cryoballoon ablation. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2022; 38:1103-1111. [PMID: 34919165 DOI: 10.1007/s10554-021-02493-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/07/2021] [Indexed: 11/30/2022]
Abstract
Cryoballoon ablation (CBA) is a safe and efficient therapeutic option for atrial fibrillation (AF). However, AF recurrence occurs in 25% of the patients, leading to repeated ablations and complications. Previous reports have shown that left atrium (LA) assessed by M-Mode and two-dimensional echocardiography (2DE) predicts AF recurrence. Nevertheless, these methods imply geometrical assumptions of the LA remodeling, which is a three-dimensional process. We hypothesized that LA remodeling by three-dimensional echocardiography (3DE) has an additional value for AF recurrence prediction post-CBA. 172 consecutive patients (62.2 ± 12.2 years, 61% male) were prospectively recruited. Echocardiography was performed before CBA. Blanking period was defined as the first three months post-ablation. The primary endpoint was AF recurrence after the blanking period. 50 (29%) patients had AF recurrence. 3DE LA maximum volume index (LAVI) had the highest incremental predictive value for AF recurrence (HR 5.50, 95% CI 1.34 -22.45, p < 0.001). In patients with non-dilated LA diameter index and LAVI by 2DE, LAVI by 3DE was able to discriminate AF recurrence with a sensitivity of 90% and a specificity of 66%, for an optimal cut-off value of 30.4 ml/m2. LA remodeling by 3DE predicted AF recurrence, even in patients with non-dilated LA by M-Mode and 2DE, suggesting that 3DE might reflect better and earlier the asymmetric and variable nature of LA remodeling and it should be considered for systematic use to evaluate AF recurrence risk post-CBA.
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Affiliation(s)
- Andreea Motoc
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Laarbeeklaan 101, 1090, Brussels, Belgium.
| | - Esther Scheirlynck
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Bram Roosens
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Maria-Luiza Luchian
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Hadischat Chameleva
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
| | - Maxim Gevers
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
| | - Xavier Galloo
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Berlinde von Kemp
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Carlo de Asmundis
- Heart Rhythm Management Centre, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Julien Magne
- CHU Limoges, Hôpital Dupuytren, Service Cardiologie, Faculté de Médecine de Limoges, 16 INSERM 1094, 2, rue Marcland, 87000, Limoges, France
| | - Steven Droogmans
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Bernard Cosyns
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Laarbeeklaan 101, 1090, Brussels, Belgium
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Wu SJ, Li CH, Weng CJ, Lin JC, Chien YS, Chen YH, Lin CH, Hsieh YC, Huang JL, Lo LW, Lin YJ, Chen SA. Efficacy of Cryoballoon Ablation for Atrial Fibrillation and Recurrence Predictors in an Asian Cohort. J Pers Med 2022; 12:jpm12050732. [PMID: 35629154 PMCID: PMC9144244 DOI: 10.3390/jpm12050732] [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: 04/03/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 02/05/2023] Open
Abstract
Background: Cryoballoon ablation (CBA) for atrial fibrillation (AF) is a rhythm control procedure used in clinical trials, mostly in Western countries. Its efficacy and the predictors of AF recurrence after CBA remain unclear for Asian populations. We aimed to investigate the efficacy of CBA and the predictors of AF recurrence after CBA in Asian AF patients. Methods: We included consecutive AF patients undergoing CBA for rhythm control between 2014 and 2020. The baseline characteristics, including AF types, symptom severity, and left atrial diameter (LAD), were analyzed. Holter’s monitoring and 12-lead ECG were performed to document AF recurrence. A multivariate Cox hazards regression model was used to evaluate the risk of AF recurrence. Results: A total of 120 AF patients (aged 61.9 ± 9.3 years) were included. The percentage of patients free from AF in the year following CBA was 74.2%. Among the three independent predictors of AF recurrence within one year were the presence of persistent AF (p = 0.025), an LAD ≥ 4.75 cm (p = 0.016), and pre-procedural cardioversion (p = 0.025). All patients survived and none had a stroke after CBA. Conclusion: CBA for AF is an effective and safe procedure in Asian populations. The presence of persistent AF, an LAD ≥ 4.75 cm, and severe symptoms are predictors of AF recurrence in the year following CBA.
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Affiliation(s)
- Shang-Ju Wu
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (S.-J.W.); (C.-J.W.); (J.-C.L.); (Y.-S.C.); (J.-L.H.); (S.-A.C.)
| | - Cheng-Hung Li
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (S.-J.W.); (C.-J.W.); (J.-C.L.); (Y.-S.C.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Department of Data Science and Big Data Analytics, and Department of Financial Engineering, Providence University, Taichung 43301, Taiwan
- Correspondence: (C.-H.L.); (Y.-C.H.); Tel.: +886-4-2251-6648 (C.-H.L. & Y.-C.H.); Fax: +886-4-2359-9257 (C.-H.L. & Y.-C.H.)
| | - Chi-Jen Weng
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (S.-J.W.); (C.-J.W.); (J.-C.L.); (Y.-S.C.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Department of Data Science and Big Data Analytics, and Department of Financial Engineering, Providence University, Taichung 43301, Taiwan
| | - Jiunn-Cherng Lin
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (S.-J.W.); (C.-J.W.); (J.-C.L.); (Y.-S.C.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Department of Internal Medicine, Taichung Veterans General Hospital Chiayi Branch, Chiayi 60090, Taiwan
| | - Yu-Shan Chien
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (S.-J.W.); (C.-J.W.); (J.-C.L.); (Y.-S.C.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Department of Internal Medicine, Taichung Veterans General Hospital Chiayi Branch, Chiayi 60090, Taiwan
| | - Yi-Huei Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (Y.-H.C.); (C.-H.L.)
| | - Ching-Heng Lin
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (Y.-H.C.); (C.-H.L.)
| | - Yu-Cheng Hsieh
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (S.-J.W.); (C.-J.W.); (J.-C.L.); (Y.-S.C.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Department of Data Science and Big Data Analytics, and Department of Financial Engineering, Providence University, Taichung 43301, Taiwan
- Department of Post-Baccalaureate Medicine, National Chung Hsing University School of Medicine, Taichung 40227, Taiwan
- Correspondence: (C.-H.L.); (Y.-C.H.); Tel.: +886-4-2251-6648 (C.-H.L. & Y.-C.H.); Fax: +886-4-2359-9257 (C.-H.L. & Y.-C.H.)
| | - Jin-Long Huang
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (S.-J.W.); (C.-J.W.); (J.-C.L.); (Y.-S.C.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Department of Post-Baccalaureate Medicine, National Chung Hsing University School of Medicine, Taichung 40227, Taiwan
- Department of Medical Education, Taichung Veterans General Hospital, Taichung 40705, Taiwan
| | - Li-Wei Lo
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Yenn-Jiang Lin
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Shih-Ann Chen
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (S.-J.W.); (C.-J.W.); (J.-C.L.); (Y.-S.C.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei 11217, Taiwan; (L.-W.L.); (Y.-J.L.)
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
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Okajima T, Inden Y, Yanagisawa S, Imai H, Murase Y, Ogawa Y, Kawaguchi K, Murohara T. Short coupling interval with high burden of atrial ectopy predicts recurrence after atrial fibrillation ablation. Heart Vessels 2021; 37:775-787. [PMID: 34705091 DOI: 10.1007/s00380-021-01966-0] [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: 08/16/2021] [Accepted: 10/08/2021] [Indexed: 11/24/2022]
Abstract
Atrial ectopy (AE) with a short coupling interval (S-AE) causes atrial fibrillation (AF). A higher burden of AE is associated with recurrence after AF ablation. However, a few reports have evaluated the prognostic impact of both AE burden and S-AE after the acute phase of ablation. This study aimed to assess the characteristics of AE beyond the blanking period in predicting the recurrence. We retrospectively analyzed 173 patients who underwent first catheter ablation for AF and 24-h Holter recording following a 3-month blanking period. AE was defined as a narrow QRS complex occurring < 75% earlier than the prior reference R-R interval. We investigated the relationship between the AE's characteristics in Holter recordings and atrial arrhythmia recurrence. Forty-two patients (24%) had a recurrence during a median 488-day follow-up. Patients with S-AE (minimum coupling interval ratio of AE ≤ 45%) had a higher recurrence rate than those without S-AE (44.9% vs. 16.1%, p < 0.001). Moreover, patients with AE ≥ 241/day exhibited a significantly higher recurrence rate than those with AE < 241/day (44.3% vs. 10.7%, p < 0.001). In multivariate analysis, S-AE with a higher AE burden was an independent predictor of recurrence (hazard ratio 5.82, 95% confidence interval: 2.64-12.82, p < 0.001). Kaplan-Meier analysis showed that patients with S-AE and a higher AE burden had the worst prognosis for recurrence (p < 0.001). The combination of a higher AE burden with S-AE could be an efficient predictor of recurrence. These results can help to develop follow-up strategies after AF ablation.
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Affiliation(s)
- Takashi Okajima
- Department of Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Department of Cardiology, Komaki City Hospital, Komaki, Japan
| | - Yasuya Inden
- Department of Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.
| | - Satoshi Yanagisawa
- Department of Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Hajime Imai
- Department of Cardiology, Komaki City Hospital, Komaki, Japan
| | - Yosuke Murase
- Department of Cardiology, Komaki City Hospital, Komaki, Japan
| | - Yasuhiro Ogawa
- Department of Cardiology, Komaki City Hospital, Komaki, Japan
| | | | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
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Gottlieb LA, Dekker LRC, Coronel R. The Blinding Period Following Ablation Therapy for Atrial Fibrillation: Proarrhythmic and Antiarrhythmic Pathophysiological Mechanisms. JACC Clin Electrophysiol 2021; 7:416-430. [PMID: 33736761 DOI: 10.1016/j.jacep.2021.01.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/14/2021] [Accepted: 01/17/2021] [Indexed: 02/01/2023]
Abstract
Atrial fibrillation (AF) causes heart failure, ischemic strokes, and poor quality of life. The number of patients with AF is estimated to increase to 18 million in Europe in 2050. Pharmacological therapy does not cure AF in all patients. Ablative pulmonary vein isolation is recommended for patients with drug-resistant symptomatic paroxysmal AF but is successful in only about 60%. In patients in whom ablative therapy is successful on the long term, recurrence of AF may occur in the first weeks to months after pulmonary vein ablation. The early recurrence (or delayed cure) of AF is not understood but forms the basis for the generally accepted 3-month blinding (or blanking) period after ablation therapy, which is not included in the evaluation of the eventual success rate of the procedures. The underlying pathophysiological processes responsible for early recurrence and the delayed cure are unknown. The implicit assumption of the blinding period is that the AF mechanism in this period is different from the ablation-targeted AF mechanism (ectopy from the pulmonary veins). In this review, we evaluate the temporary and long-lasting pro- and antiarrhythmic effects of each of the pathophysiological processes and interventions (necrosis, ischemia, oxidative stress, edema, inflammation, autonomic nervous activity, tissue repair, mechanical remodeling, and use of antiarrhythmic drugs) occurring in the blinding period that can modulate AF mechanisms. We propose that stretch-reducing ablation scar is a permanent antiarrhythmic mechanism that develops during the blinding period and is the reason for delayed cure.
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Affiliation(s)
- Lisa A Gottlieb
- Electrophysiology and Heart Modelling Institute, University of Bordeaux, Pessac, France; Department of Experimental Cardiology, Amsterdam University Medical Centre, Academic Medical Centre, Amsterdam, the Netherlands
| | - Lukas R C Dekker
- Department of Electrical Engineering, University of Technology, Eindhoven, the Netherlands; Cardiology Department, Catharina Hospital, Eindhoven, the Netherlands.
| | - Ruben Coronel
- Electrophysiology and Heart Modelling Institute, University of Bordeaux, Pessac, France; Department of Experimental Cardiology, Amsterdam University Medical Centre, Academic Medical Centre, Amsterdam, the Netherlands
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Vernemmen I, De Clercq D, Decloedt A, Vera L, Van Steenkiste G, van Loon G. Atrial premature depolarisations five days post electrical cardioversion are related to atrial fibrillation recurrence risk in horses. Equine Vet J 2019; 52:374-378. [PMID: 31583742 DOI: 10.1111/evj.13186] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 08/29/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND The number of atrial premature depolarisations (APDs) is a known risk factor for atrial fibrillation (AF) recurrence in humans. OBJECTIVES To evaluate if the number of APDs over a 24-h period 5 days post cardioversion predicts AF recurrence within 1 year in horses, taking the multifactorial nature of AF into account. STUDY DESIGN Retrospective case series. METHODS Eighty horses met these inclusion criteria: first AF episode, no AF recurrence within 5 days post cardioversion, cardioversion by transvenous electrical cardioversion (TVEC), 24-h ECG recording and echocardiographic examination 5 days post cardioversion, no antiarrhythmic treatment during the ECG recording and follow-up of minimum 1 year. To compare the APD burden between the recurrence and non-recurrence group a Mann-Whitney U test was used. A multivariable survival model was built to identify additional risk factors for AF recurrence. RESULTS The patient population mainly consisted of Warmbloods (93%). Twenty-six horses (33%) experienced AF recurrence within 1 year. The number of APDs (median [range]) was significantly higher (P = 0.01) in the recurrence group (15 [1-152]) compared with the non-recurrence group (7 [0-304]). In the multivariable survival model, APDs ≥25/24 h (hazard ratio [HR] 2.9, 95% confidence interval [CI] 1.2-6.8, P = 0.02), mitral regurgitation (HR 8.6, 95% CI 2.6-28.9, P<0.001), left atrial active fractional area change ≤9.6% (HR 2.6, 95% CI 1.0-6.5, P = 0.04) and lower body weight (HR 0.99, 95% CI 0.98-0.99, P = 0.001) were significantly associated with AF recurrence. MAIN LIMITATIONS This study did not evaluate early AF recurrence within 5 days. The results cannot necessarily be extrapolated to other treatment methods, as only horses converted by TVEC were included. CONCLUSIONS The APD burden 5 days post cardioversion could be a useful predictive value for AF recurrence within 1 year in horses. However, other factors such as mitral regurgitation and atrial contractile function must also be taken into account.
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Affiliation(s)
- I Vernemmen
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - D De Clercq
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - A Decloedt
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - L Vera
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - G Van Steenkiste
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - G van Loon
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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7
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Motoc A, Abugattas JP, Roosens B, Scheirlynck E, Heyndrickx B, de Asmundis C, Chierchia GB, Droogmans S, Cosyns B. Left atrium remodeling predicts late recurrence of paroxysmal atrial fibrillation after second generation cryoballoon ablation. Cardiovasc Ultrasound 2018; 16:19. [PMID: 30249263 PMCID: PMC6154403 DOI: 10.1186/s12947-018-0137-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/03/2018] [Indexed: 11/18/2022] Open
Abstract
Background Atrial fibrillation (AF) is the most common arrhythmia worldwide. Nowadays, AF ablation is a valuable treatment option. It has been shown that the left atrium (LA) diameter is a predictor of AF recurrence after cryoballoon ablation (CBA). Since it does not reflect the true LA size, we compared the role of different LA anatomical parameters using echocardiography for the prediction of AF recurrence after CBA. Methods We retrospectively included 209 patients (mean age 56.1 ± 13.6 years, male 62%) with paroxysmal AF undergoing CBA. A transthoracic echocardiography was performed in all patients. Results At a mean follow-up of 16.9 ± 6.3 months, AF recurred in 25.4% of the patients. LA anterior - posterior diameter (LAD), LA minimum volume (LAmin) and early AF recurrence were independent predictors of recurrence. Based on receiver operating characteristics, cut – off values for LAD and, LAmin were 41 mm, 23.69 mL, respectively. The negative predictive values for recurrence were 73% and 87.3% respectively. In patients with AF recurrence, a significant proportion (30.2%) showed LA longitudinal remodeling (LA superior – inferior diameter) even though classically measured LAD was normal. Conclusions Longitudinal LA remodeling plays an additional role for predicting AF recurrence after CBA, in patients without LAD dilation. Moreover, LAmin had a high negative predictive value and was an independent predictor of AF recurrence. Therefore, a more complete LA anatomical assessment allows a better prediction of AF recurrences after CBA.
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Affiliation(s)
- Andreea Motoc
- Centrum Voor Hart-en Vaatziekten (CHVZ), Department of Cardiology, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium.
| | - Juan-Pablo Abugattas
- Heart Rhythm Management Centre, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Bram Roosens
- Centrum Voor Hart-en Vaatziekten (CHVZ), Department of Cardiology, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Esther Scheirlynck
- Centrum Voor Hart-en Vaatziekten (CHVZ), Department of Cardiology, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Benedicte Heyndrickx
- Centrum Voor Hart-en Vaatziekten (CHVZ), Department of Cardiology, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Carlo de Asmundis
- Heart Rhythm Management Centre, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | | | - Steven Droogmans
- Centrum Voor Hart-en Vaatziekten (CHVZ), Department of Cardiology, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Bernard Cosyns
- Centrum Voor Hart-en Vaatziekten (CHVZ), Department of Cardiology, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
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