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Yamasaki T, Kakita K, Pak M, Hattori T. Quantitative comparison of the isolation lesions between conventional- and larger-sized visually guided laser balloon ablation. J Interv Card Electrophysiol 2024:10.1007/s10840-024-01738-6. [PMID: 38427180 DOI: 10.1007/s10840-024-01738-6] [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: 10/02/2023] [Accepted: 01/04/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND The importance of a wider circumferential isolation of the pulmonary veins (PV), which includes a large portion of the left atrial posterior wall (LAPW), has been suggested in several studies. However, the extended isolation area using a larger inflated visually guided laser balloon (VGLB) ablation remains to be elucidated. METHODS Seventy-eight patients with atrial fibrillation (AF) who underwent VGLB ablation were enrolled in this prospective study. An electroanatomic map of the left atrium was obtained before and after PV isolation (PVI) using a conventional-sized VGLB. The isolation areas were extended by the largest-sized VGLB ablation and remapped in the same manner. After the ablation, isolation areas were calculated with CARTO-3 system. The one-year atrial arrhythmia (Ata) recurrence was assessed. RESULTS: The largest-sized VGLB ablation yielded statistically greater areas of isolation in left-sided PV antrum (PVA) (11.5 ± 2.3 cm2 vs. 15.9 ± 3.5 cm2, P < .001) and right-sided PVA (14.2 ± 3.3 cm2 vs. 20.6 ± 4.4 cm2, P < .001) than the conventional-sized VGLB. Further, non-ablated LAPW (12.3 ± 4.4 cm2 vs. 7.8 ± 3.9 cm2, P < .001) was significantly reduced after largest-sized VGLB ablation, compared to the conventional-sized VGLB ablation. The one-year Ata freedom was 83.7% in patients with paroxysmal AF and 96.4% in those with persistent AF. CONCLUSION The largest-sized VGLB ablation technique can create a significantly wider isolation area of PVA and debulk a large amount of LAPW than the conventional-sized VGLB ablation. The one-year outcome was similarly high in paroxysmal and persistent AF.
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Affiliation(s)
- Takashi Yamasaki
- Arrhythmia Care Center, Koseikai Takeda Hospital, 841-5 Higashi Shiokoji-Cho, Shiokoji-Dori Nishinotoin-Higashiiru, Shimogyo-Ku, Kyoto, 600-8558, Japan.
| | - Ken Kakita
- Arrhythmia Care Center, Koseikai Takeda Hospital, 841-5 Higashi Shiokoji-Cho, Shiokoji-Dori Nishinotoin-Higashiiru, Shimogyo-Ku, Kyoto, 600-8558, Japan
| | - Misun Pak
- Arrhythmia Care Center, Koseikai Takeda Hospital, 841-5 Higashi Shiokoji-Cho, Shiokoji-Dori Nishinotoin-Higashiiru, Shimogyo-Ku, Kyoto, 600-8558, Japan
| | - Tetsuhisa Hattori
- Arrhythmia Care Center, Koseikai Takeda Hospital, 841-5 Higashi Shiokoji-Cho, Shiokoji-Dori Nishinotoin-Higashiiru, Shimogyo-Ku, Kyoto, 600-8558, Japan
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2
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Funasako M, Petrů J, Hála P, Janotka M, Škoda J, Chovanec M, Šedivá L, Reddy VY, Neužil P. Acute and long-term results with the 3 rd generation visually guided laser balloon ablation system for pv isolation. J Interv Card Electrophysiol 2024; 67:53-60. [PMID: 36805921 PMCID: PMC10770210 DOI: 10.1007/s10840-023-01499-8] [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: 12/14/2022] [Accepted: 01/30/2023] [Indexed: 02/23/2023]
Abstract
BACKGROUND Visually guided laser balloon ablation is known as an effective pulmonary vein (PV) isolation device. The third-generation laser balloon ablation system (X3) equipped with compliant balloon and an automated motor-driven laser output mechanism, namely RAPID mode, has been clinically proven for PV isolation. METHODS PV isolation with X3 was performed in all the patients with paroxysmal and early-stage persistent atrial fibrillation (AF). Acute data for PV isolation and clinical outcomes including supraventricular tachyarrhythmia (SVT: AF, atrial flutter, or atrial tachycardia)-free survival rate beyond 1 year were analyzed. RESULTS A total of 110 patients (62 ± 13 years old, 80% of paroxysmal AF) were treated with X3. RAPID mode with was utilized to achieve PV isolation in all cases. In combination with RAPID mode and spot mode laser ablation, 91.1% (380/417) of veins were isolated on the first circumferential lesion set and did not require touch-up ablation and during the index procedure 100% of attempted veins were isolated. The mean procedure time was 77.0 ± 22.7 min and LA dwell time was 61.9 ± 22.0 min. Total duration of laser application was 5.1 ± 2.3 min per vein. At 1 year, SVT-free survival rate was 93.7% in paroxysmal AF patients, and 81.1% in persistent AF patients. CONCLUSIONS A novel continuous automatic laser balloon ablation system was proved to be safe and effective for both paroxysmal and persistent AF patients. The clinical result demonstrated that PV isolation with X3 could achieve a high SVT-free survival rate.
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Affiliation(s)
- Moritoshi Funasako
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic.
| | - Jan Petrů
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic
| | - Pavel Hála
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic
| | - Marek Janotka
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic
| | - Jan Škoda
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic
| | - Milan Chovanec
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic
| | - Lucie Šedivá
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic
| | - Vivek Y Reddy
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic
- The Helmsley Electrophysiology Center, Mount Sinai School of Medicine, New York, NY, USA
| | - Petr Neužil
- Cardiology Department, Na Homolce Hospital, Roentgenova 2, Prague, 15030, Czech Republic
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3
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Sun X, Zhao S, Yu S, Cui K. Cryoballoon vs. laser balloon ablation for atrial fibrillation: a meta-analysis. Front Cardiovasc Med 2023; 10:1278635. [PMID: 38169911 PMCID: PMC10761002 DOI: 10.3389/fcvm.2023.1278635] [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: 08/16/2023] [Accepted: 11/20/2023] [Indexed: 01/05/2024] Open
Abstract
Background Cryoballoon ablation (CBA) and laser balloon ablation (LBA) are two innovative ways for the treatment of atrial fibrillation (AF). This study aimed to evaluate the efficacy and safety of cryoballoon ablation and laser balloon ablation in patients with AF. Methods We searched Pubmed, Embase, Ovid, Web of Science and other databases for comparative trials comparing CB and LB ablation in the treatment of AF, from establishment of database to August, 2023. Results A total of 13 studies and 3,582 patients were included (CBA, n = 2,308; LBA, n = 1,274). There was no difference between CBA and LBA in acute PVI rate per vein, 12-months recurrence rate of AF, 12-months recurrence rate of atrial arrhythmia, occurrence rate of pericardial tamponade, occurrence rate of inguinal complications. LBA presented a lower acute PVI rate per patients (CBA 97.0% vs. LBA 93.4%, RR = 1.04, 95%CI: 1.01-1.07). Transient nerve palsy was more likely to occur after CBA (CBA 2.7% vs. LBA 0.7%, RR = 4.25, 95%CI: 2.06-8.76). However, the occurrence of persistent nerve palsy between CBA and LBA groups were similar (CB 1.4% vs. LB 1.0%, RR = 1.09, 95%CI: 0.55-2.14). In terms of procedural duration, the procedural time of CBA was shorter than that of LBA (WMD = -26.58, 95%CI: -36.71-16.46). Conclusions Compared with LBA, CBA had a shorter procedural duration. There was a higher incidence of transient but not persistent phrenic nerve palsy after CBA. Systematic Review Registration https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=272607 Identifier (CRD42021272607).
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Affiliation(s)
- Xiaochi Sun
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shenyu Zhao
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Simin Yu
- West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Kaijun Cui
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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4
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Schiavone M, Gasperetti A, Martignani C, Montemerlo E, Ciconte G, Ziacchi M, Arosio R, Piazzi E, Spadotto A, Ruggiero D, Angeletti A, Pozzi M, Biffi M, Rovaris G, Forleo GB. Atrial fibrillation recurrences during the blanking period after catheter ablation with the laser balloon technique. J Cardiovasc Electrophysiol 2023; 34:2443-2451. [PMID: 37767727 DOI: 10.1111/jce.16087] [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: 06/18/2023] [Revised: 09/10/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
INTRODUCTION Regardless of the catheter ablation (CA) for atrial fibrillation (AF) strategy, the role of early recurrences during the blanking period (BP) is still unclear. Our aim was to evaluate atrial tachyarrhythmias (ATAs) recurrences during the BP after CA with the laser-balloon (LB) technique. METHODS Consecutive patients undergoing LBCA were enrolled. Primary outcome of the study was the overall crude ATA recurrence rate during the BP. ATA recurrences after the BP and in-hospital readmissions during the BP were deemed secondary outcomes. RESULTS Two hundred and twenty-four patients underwent CA with the LB. Median age was 63.0 (55.5-69.5) years and 74.1% were males. 28.6% were persistent AF patients, and 34.8% of patients were followed up with a loop recorder. 15.6% of patients experienced at least an ATA recurrence during the BP. Male sex, chronic heart failure, persistent AF, and recurrences during the BP were found to be associated with long-term ATA recurrences. Recurrences during the BP remained associated with the outcome of interest at multivariate analysis (hazard ratio [HR] = 12.393, 95% confidence interval [95% CI] = 3.699-41.865, p < .001). An association over time was found between early and late recurrences, with 73.7%, 45.5%, and 10.8% of patients presenting with recurrences at 1-, 2-, and 3-month follow-up being free from recurrences after the BP, respectively. 8.0% of patients were readmitted during the BP: 4.5% for AF electrical cardioversion, and 1.8% for CA of other atrial arrhythmias; no redo CA was performed. CONCLUSION After adjusting for confounders, ATA recurrences during the BP represent the most significant predictor of ATA recurrences after the BP, regardless of AF pattern.
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Affiliation(s)
- Marco Schiavone
- Cardiology Unit, Luigi Sacco University Hospital, Milan, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
- Department of Electrophysiology & Cardiac Pacing, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Alessio Gasperetti
- Cardiology Unit, Luigi Sacco University Hospital, Milan, Italy
- Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Cristian Martignani
- Cardiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | | | - Giuseppe Ciconte
- Arrhythmia and Electrophysiology Center, IRCCS Policlinico San Donato, San Donato Milanese, Milano, Italy
| | - Matteo Ziacchi
- Cardiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Roberto Arosio
- Cardiology Unit, Luigi Sacco University Hospital, Milan, Italy
| | - Elena Piazzi
- Cardiology Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Alberto Spadotto
- Cardiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Diego Ruggiero
- Cardiology Unit, Luigi Sacco University Hospital, Milan, Italy
| | - Andrea Angeletti
- Cardiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Mattia Pozzi
- Cardiology Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Mauro Biffi
- Cardiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Giovanni Rovaris
- Cardiology Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
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5
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Nagase T, Asano S, Fukunaga H, Kasai Y, Inoue K, Sekiguchi Y, Tanizaki K, Murai T, Nanasato M, Umemura J, Nitta J, Isobe M. Evaluation of linear lesion formation and thermodynamics by dragging ablation with the third-generation laser balloon. Heart Rhythm O2 2022; 3:311-318. [PMID: 35734297 PMCID: PMC9207738 DOI: 10.1016/j.hroo.2022.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background The lesion formation properties of a motorized rotational delivery (RAPID) mode, third-generation laser balloon (LB3) ablation compared to point-by-point laser ablation in patients with atrial fibrillation remain unclear. Objective The purpose of this study was to assess lesion characteristics and thermodynamics in LB3 ablation with a RAPID mode in vitro model. Methods Chicken muscles were cauterized using LB3 in RAPID mode with 13 W and 15 W and 50% overlapped point-by-point fashion with 7 W/30 seconds, 8.5 W/20 seconds, 10 W/20 seconds, and 12 W/20 seconds. Lesion depth, width, and continuity were compared. Lesion continuity was classified by the visible gap degree categorized from 1 (perfect) to 3 (poor). Thermodynamics and maximum tissue temperatures were assessed under infrared thermographic monitoring. Fifteen and 5 lesions were evaluated per ablation protocol for measurement of lesion size and continuity and for thermographic assessment, respectively. Results Lesion depth and width were smaller in RAPID mode laser ablation than point-by-point laser ablation (P <.001). However, RAPID mode laser ablation revealed sufficient mean lesion depth of 5 mm or more. Lesion continuity was 1 (perfect) in all samples in RAPID mode laser ablation and point-by-point laser ablation (P = 1). Infrared thermographic observation demonstrated fast and gapless linear lesion formation with thermal stacking in RAPID mode laser ablation. Maximum tissue temperature was lower in RAPID mode laser ablation than point-by-point laser ablation (P <.001). Conclusion RAPID mode LB3 ablation could provide fast, gapless, and acceptable lesion formation with thermal stacking and moderate tissue temperature rise.
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Affiliation(s)
- Takahiko Nagase
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
- Address reprint requests and correspondence: Dr Takahiko Nagase, Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-cho, Fuchu-shi, Tokyo 183-0003, Japan.
| | - So Asano
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Hiroshi Fukunaga
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Yuhei Kasai
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Kanki Inoue
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Yukio Sekiguchi
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Kohei Tanizaki
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Tatsuya Murai
- Department of Pathology, Sakakibara Heart Institute, Tokyo, Japan
| | - Mamoru Nanasato
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Jun Umemura
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Junichi Nitta
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Mitsuaki Isobe
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
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6
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Schiavone M, Gasperetti A, Montemerlo E, Pozzi M, Sabato F, Piazzi E, Ruggiero D, De Ceglia S, Viecca M, Calkins H, Rovaris G, Forleo GB. Long term comparisons of atrial fibrillation ablation outcomes with a cryo-balloon or laser-balloon: a propensity-matched analysis based on continuous rhythm monitoring. Hellenic J Cardiol 2022; 65:1-7. [PMID: 35331905 DOI: 10.1016/j.hjc.2022.03.006] [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: 10/07/2021] [Revised: 03/12/2022] [Accepted: 03/13/2022] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Cryoballoon (CB) and laser-balloon (LB) catheter ablation (CA) have been demonstrated to achieve durable and effective pulmonary vein isolation (PVI). Only one head-to-head comparison with an intermittent rhythm monitor strategy is currently available. Aim of this study was to compare acute and long-term outcomes of CB and LB atrial fibrillation ablation procedures, using a continuous rhythm monitoring strategy. METHODS This was a prospective two-arm non-randomized propensity-matched observational trial, comparing the outcomes of atrial fibrillation (AF) ablation using LB and CB techniques. To evaluate AF recurrences, an implantable cardiac monitor (ICM) was implanted prior to hospital discharge to detect atrial tachyarrhythmias (ATAs) recurrences. RESULTS 110 propensity-matched patients undergoing AF ablation with a LB (n=55) or with a CB system (n=55) were enrolled (paroxysmal AF 57.3%). Procedural time (LB: 87 [73-104] vs CB 90 [70-130] min; p=0.264) and fluoroscopy time did not differ. No differences in ATAs recurrences were observed at 12-month (LB-30.9% vs CB-29.1% and LB-45.5% vs CB-38.2%; log-rank 0.539). As for AF burden, the 12-month median was 0 [0-1] vs 0 [0-3]% (p=0.127), in the LB and CB-group, respectively. When considering only PeAF patients, median 12-month ATAs burden was 26 [18.5-40.5] vs 29 [26-35] % for the LB and CB patients (p=0.919). CONCLUSION In a propensity-matched cohort undergoing AF ablation, arrhythmia outcomes assessed by continuous rhythm monitoring did not differ between LB and CB, with an overall low ATAs burden. The only predictor of recurrences was persistent AF. There was no difference in procedure or fluoroscopy time.
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Affiliation(s)
- Marco Schiavone
- Cardiology Unit, ASST-Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan (IT)
| | - Alessio Gasperetti
- Cardiology Unit, ASST-Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan (IT); Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland (US).
| | | | - Mattia Pozzi
- Department of Cardiology, ASST-Monza, San Gerardo Hospital, Monza (IT)
| | - Federica Sabato
- Cardiology Unit, ASST-Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan (IT)
| | - Elena Piazzi
- Department of Cardiology, ASST-Monza, San Gerardo Hospital, Monza (IT)
| | - Diego Ruggiero
- Cardiology Unit, ASST-Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan (IT)
| | - Sergio De Ceglia
- Department of Cardiology, ASST-Monza, San Gerardo Hospital, Monza (IT)
| | - Maurizio Viecca
- Cardiology Unit, ASST-Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan (IT)
| | - Hugh Calkins
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland (US)
| | - Giovanni Rovaris
- Department of Cardiology, ASST-Monza, San Gerardo Hospital, Monza (IT)
| | - Giovanni B Forleo
- Cardiology Unit, ASST-Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan (IT)
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Tohoku S, Bordignon S, Bologna F, Chen S, Urbanek L, Operhalski F, Chun KJ, Schmidt B. Laser balloon in pulmonary vein isolation for atrial fibrillation: current status and future prospects. Expert Rev Med Devices 2021; 18:1083-1091. [PMID: 34618626 DOI: 10.1080/17434440.2021.1990754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Visually guided laser balloon (LB) catheter has been an established modality dedicated for pulmonary vein (PV) isolation in patients with atrial fibrillation. The newly updated version of this novel device has technically evolved recent years. AREAS COVERED This review will summarize the contemporary technical evolution of LB catheter. Available efficacy outcomes and the historical change of ablation style will be evaluated. Furthermore, the future perspectives for clinical practice are discussed. EXPERT COMMENTARY The initial LB ablation system provided comparable clinical results in PV isolation with other technologies, but with a unique strategical concept enabling the direct visualization of the tissue to cauterize. With multigenerational development, the LB catheter has been equipped with more compliant balloon for favorable PV occlusion and a robotically motor driven continuous ablation mode (RAPID mode). These technical innovations changed the concept of the ablation strategy using LB catheter as 'point-by-point' into 'single-shot' fashion. The remaining tasks are further improvements such as equipping with real-time recording system of intracardiac electrogram, durable structured balloon and the instrument for visualizing the cauterization area in a 360-degree panoramic view, which includes potential possibilities to develop this novel device to the more optimal device for PV isolation.
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Affiliation(s)
- Shota Tohoku
- Academy for Arrhythmias (FAFA), Abteilung für Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus, Cardioangiologisches Centrum Bethanien, Frankfurt, Germany
| | - Stefano Bordignon
- Academy for Arrhythmias (FAFA), Abteilung für Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus, Cardioangiologisches Centrum Bethanien, Frankfurt, Germany
| | - Fabrizio Bologna
- Academy for Arrhythmias (FAFA), Abteilung für Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus, Cardioangiologisches Centrum Bethanien, Frankfurt, Germany
| | - Shaojie Chen
- Academy for Arrhythmias (FAFA), Abteilung für Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus, Cardioangiologisches Centrum Bethanien, Frankfurt, Germany.,Die Sektion Medizin, Universität zu Lübeck, Lübeck, Germany
| | - Lukas Urbanek
- Academy for Arrhythmias (FAFA), Abteilung für Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus, Cardioangiologisches Centrum Bethanien, Frankfurt, Germany
| | - Felix Operhalski
- Universitätsklinikum Frankfurt, Medizinische Klinik 3- Klinik für Kardiologie, Frankfurt, Germany
| | - Kr Julian Chun
- Academy for Arrhythmias (FAFA), Abteilung für Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus, Cardioangiologisches Centrum Bethanien, Frankfurt, Germany.,Die Sektion Medizin, Universität zu Lübeck, Lübeck, Germany
| | - Boris Schmidt
- Academy for Arrhythmias (FAFA), Abteilung für Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus, Cardioangiologisches Centrum Bethanien, Frankfurt, Germany.,Universitätsklinikum Frankfurt, Medizinische Klinik 3- Klinik für Kardiologie, Frankfurt, Germany
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8
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Tohoku S, Bordignon S, Chen S, Zanchi S, Bianchini L, Trolese L, Operhalski F, Urbanek L, Chun KRJ, Schmidt B. Single-sweep pulmonary vein isolation using the new third-generation laser balloon-Evolution in ablation style using endoscopic ablation system. J Cardiovasc Electrophysiol 2021; 32:2923-2932. [PMID: 34535929 DOI: 10.1111/jce.15245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/25/2021] [Accepted: 09/08/2021] [Indexed: 01/24/2023]
Abstract
BACKGROUND The endoscopic ablation system (EAS) is an established ablation device for pulmonary vein isolation (PVI) in patients with atrial fibrillation (AF). The novel X3 EAS is now equipped with a contiguous circumferential ablation mode (RAPID mode). AIM To determine the feasibility of single-shot fashioned ablation using X3. METHODS Consecutive patients who underwent AF ablation using X3 were enrolled. We assessed the acute procedural data focusing on "Single-sweep PVI" defined as successful PVI with a single RAPID mode energy application, and on "first-pass isolation" defined as successful PVI after initial circular lesion set. RESULTS One hundred AF patients (56% male, age: 68 ± 10 years, 66% paroxysmal AF) were analyzed. A total of 379 of 383 PVs (99%) were isolated with X3. Single-sweep PVI and first-pass-isolation were achieved in 214 PVs (56%) and in 362 PVs (95%), respectively. Single-sweep PVI rates varied across PVs with higher rates at the superior PVs (61.2% vs. inferior PVs: 49.5%, p = .0239) and at PVs with maximal ostial diameter <24 mm (57.6% vs. >24 mm: 36.8%, p = .0151). The mean total procedure and fluoroscopy times were 43.0 ± 10 and 4.0 ± 2 min, respectively. In none of the patients an acute thromboembolic event (stroke or transient ischemic attack) or a pericardial effusion/tamponade occurred. A single transient phrenic nerve palsy was observed. CONCLUSION The new X3 EAS allows for single-shot fashioned ablation in terms of single-sweep PVI in half or more of PVs. The new RAPID ablation mode leads to an improved rate of first-pass isolation associated with very short procedure times without compromising safety.
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Affiliation(s)
- Shota Tohoku
- Cardioangiologisches Centrum Bethanien, Frankfurt, Germany
| | | | - Shaojie Chen
- Cardioangiologisches Centrum Bethanien, Frankfurt, Germany.,Die Sektion Medizin, Universität zu Lübeck, Lübeck, Germany
| | - Simone Zanchi
- Cardioangiologisches Centrum Bethanien, Frankfurt, Germany
| | | | - Luca Trolese
- Universitäts Herzzentrum Freiburg-Bad Krozingen, Klinik für Kardiologie und Angiologie I, Freiburg, Germany
| | - Felix Operhalski
- Universitätsklinikum Frankfurt, Medizinische Klinik 3-Klinik für Kardiologie, Frankfurt, Germany
| | - Lukas Urbanek
- Cardioangiologisches Centrum Bethanien, Frankfurt, Germany
| | - K R Julian Chun
- Cardioangiologisches Centrum Bethanien, Frankfurt, Germany.,Die Sektion Medizin, Universität zu Lübeck, Lübeck, Germany
| | - Boris Schmidt
- Cardioangiologisches Centrum Bethanien, Frankfurt, Germany.,Universitätsklinikum Frankfurt, Medizinische Klinik 3-Klinik für Kardiologie, Frankfurt, Germany
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9
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Evaluation of different ablation strategies verifying the optimal overlap ratio in point-by-point laser balloon ablation for patients with atrial fibrillation. Heart Rhythm O2 2021; 2:347-354. [PMID: 34430940 PMCID: PMC8369302 DOI: 10.1016/j.hroo.2021.06.007] [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] [Indexed: 11/24/2022] Open
Abstract
Background Optimal overlap ratio remains unclear in point-by-point laser balloon (LB) ablation. Objective This study sought to determine the optimal overlap strategy with target energies on the acute and chronic outcomes in LB pulmonary vein (PV) isolation (PVI). Methods Consecutive 38 patients (148 PVs) with atrial fibrillation underwent the first-generation LB PVI with the following protocols based on the overlap ratios for each PV anterior/posterior wall: 50%/50% (13 patients [49 PVs], group A), 50%/25% (15 patients [60 PVs], group B), and 25%/25% (10 patients [39 PVs], group C). High energies (240–255 J: 12 W / 20 seconds, 8.5 W / 30 seconds), moderate energies (200–210 J: 10 W / 20 seconds, 7 W / 30 seconds), and low-to-moderate energies (low, 165–170 J: 5.5 W / 30 seconds, 8.5 W / 20 seconds) were targeted for left PV anterior walls, right PV anterior walls, and bilateral PV posterior walls, respectively. First-pass PVI, the other procedure-related data, and atrial tachyarrhythmia recurrences were analyzed. Results First-pass PVI rate per PV was higher in group A (94%) than in group B (88%) and group C (62%) (P < .001). All PVs were finally isolated. First-pass time, total LB PVI time, complications, and atrial tachyarrhythmia recurrences during a mean follow-up of 11 ± 5 months did not differ between the groups. A few residual gaps after first-pass LB ablations were found for PV anterior walls even in group A and group B. Conclusion Sufficiently overlapped LB ablation promises a high rate of first-pass PVI without adverse outcomes. High energy could be required for PV anterior walls.
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Shinoda Y, Sato A, Adach T, Nishi I, Nogami A, Aonuma K, Ieda M. Early clinical experience of radiofrequency catheter ablation using an audiovisual telesupport system. Heart Rhythm 2021; 17:870-875. [PMID: 32354452 DOI: 10.1016/j.hrthm.2020.01.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 01/13/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND An audiovisual telesupport system that enables real-time audiovisual communications between 2 long-distance hospitals is one method of telemedicine. The usefulness and safety of radiofrequency catheter ablation (RFCA) using an audiovisual telesupport system has not been well established. OBJECTIVE The purpose of this study was to evaluate the effectiveness and safety of RFCA using an audiovisual telesupport system. METHODS An audiovisual telesupport system using a strictly secured virtual network was established between Kamisu Saiseikai Hospital (operator with 10 years' experience and 800 procedures) and the University of Tsukuba (advisor with >20 years' experience and 8000 procedures). We evaluated 19 initial consecutive patients who underwent RFCA using this system for tachyarrhythmia: 10 with atrial fibrillation (AF), 5 with paroxysmal supraventricular tachycardia (PSVT), 3 with premature ventricular contraction (PVC), and 1 with atrial flutter. Electrophysiological and procedural characteristics were retrospectively assessed. RESULTS Acute success was achieved in all 19 patients without any major complications, with the advisor's audiovisual assistance. Mean procedure time and fluoroscopic time were 161 ± 44 minutes and 24 ± 14 minutes for AF, 110 ± 17 minutes and 28 ± 8 minutes for PVC, and 132 ± 19 minutes and 32 ± 2 minutes for PSVT, respectively. There was no recurrence of clinical arrhythmia in 17 of the 19 patients (89%) during 13 ± 9 month follow-up. CONCLUSION An audiovisual telesupport system for RFCA is a useful and safe method that enabled the electrophysiologist with limited human resources to make an optimal decision regarding procedural strategy and endpoint with the remote advisor's audiovisual assistance.
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Affiliation(s)
- Yasutoshi Shinoda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Internal Medicine, Kamisu Saiseikai Hospital, Kamisu, Japan
| | - Akira Sato
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
| | - Toru Adach
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Isao Nishi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Internal Medicine, Kamisu Saiseikai Hospital, Kamisu, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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11
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Rovaris G, Ciconte G, Schiavone M, Mitacchione G, Gasperetti A, Piazzi E, Negro G, Montemerlo E, Rondine R, Pozzi M, Casiraghi M, De Ceglia S, Giacopelli D, Viecca M, Vicedomini G, Forleo GB, Pappone C. Second-generation laser balloon ablation for the treatment of atrial fibrillation assessed by continuous rhythm monitoring: the LIGHT-AF study. Europace 2021; 23:1380-1390. [PMID: 33837418 DOI: 10.1093/europace/euab085] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/20/2021] [Indexed: 11/13/2022] Open
Abstract
AIMS Balloon-based technologies have been developed to simplify catheter ablation of atrial fibrillation (AF), to improve the clinical outcome of the procedure and to achieve durable pulmonary vein isolation (PVI). The objective of this study is to evaluate the safety and efficacy of second-generation laser balloon (LB2) ablation in the treatment of AF using a continuous cardiac rhythm monitoring strategy. Atrial tachyarrhythmias (ATas) recurrences were assessed with implantable cardiac monitors (ICMs) or devices. METHODS AND RESULTS All patients underwent LB2 ablation procedure. The primary endpoint was the first recurrence of any, >5.5 and >24 h duration ATas after the blanking period (90 days). In-hospital visits were performed at 3, 6, and 12 months. Seventy-three patients (68% male, mean age 59.8 ± 11.3) were included in the study. The average procedure, fluoroscopy, and laser ablation times were 81.5 ± 30.1, 21.5 ± 12.4, and 33.8 ± 9.7, respectively. All PVs were isolated using the LB2 with no need of touch-up using focal catheters. No major complications occurred during or after the procedures. The one-year freedom from recurrences was 66.9% (95% CI: 57.0-76.7%), 81.0% (69.5-88.5%), and 86.8% (76.1-92.9%) considering any, 5.5-h and 24-h cut-off duration, respectively. At 3, 6, and 12 months, any ATas was recorded in 22%, 32%, and 25% of patients, with a ≥5% arrhythmic burden documented in 4%, 5%, and 3%, respectively. Few patients reported AF-related symptoms (7%, 8%, and 5%). CONCLUSION LB2 ablation is a safe and effective procedure, showing a high freedom from recurrences and low arrhythmic burden as documented by a continuous rhythm monitoring strategy.
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Affiliation(s)
- Giovanni Rovaris
- Department of Cardiology, ASST Monza, San Gerardo Hospital, Monza, Italy
| | - Giuseppe Ciconte
- Arrhythmology Department, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Marco Schiavone
- Department of Cardiology, ASST Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan, Italy
| | - Gianfranco Mitacchione
- Department of Cardiology, ASST Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan, Italy
| | - Alessio Gasperetti
- Department of Cardiology, ASST Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan, Italy
| | - Elena Piazzi
- Department of Cardiology, ASST Monza, San Gerardo Hospital, Monza, Italy
| | - Gabriele Negro
- Arrhythmology Department, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | | | - Roberto Rondine
- Arrhythmology Department, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Mattia Pozzi
- Department of Cardiology, ASST Monza, San Gerardo Hospital, Monza, Italy
| | - Mirko Casiraghi
- Department of Cardiology, ASST Monza, San Gerardo Hospital, Monza, Italy
| | - Sergio De Ceglia
- Department of Cardiology, ASST Monza, San Gerardo Hospital, Monza, Italy
| | - Daniele Giacopelli
- Biotronik Italia, Vimodrone, Milan, Italy.,Department of Cardiac, Thoracic, Vascular Sciences & Public Health, University of Padova, Italy
| | - Maurizio Viecca
- Department of Cardiology, ASST Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan, Italy
| | - Gabriele Vicedomini
- Arrhythmology Department, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Giovanni B Forleo
- Department of Cardiology, ASST Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan, Italy
| | - Carlo Pappone
- Arrhythmology Department, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
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12
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Kobori A, Sasaki Y, Pak M, Okada T, Toyota T, Kim K, Kitai T, Ehara N, Kinoshita M, Kaji S, Kihara Y, Furukawa Y. Early experiences with three types of balloon-based ablation catheters in patients with paroxysmal atrial fibrillation. Heart Rhythm O2 2021; 2:223-230. [PMID: 34337572 PMCID: PMC8322794 DOI: 10.1016/j.hroo.2021.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background Although balloon-based ablation catheters are expected to improve the feasibility and quality of pulmonary vein isolation (PVI) in patients with atrial fibrillation (AF), they must be introduced to physicians in the proper setting to ensure their correct usage. Objective To identify the optimal clinical settings for learning the techniques for 3 balloon-based ablation catheters (Cryoballoon, Hotballoon, and Laserballoon). Methods We introduced 3 balloon catheters in 50 consecutive patients with paroxysmal AF each during the introduction periods. Clinical parameters were compared among the groups and between these groups and their steady-state controls. Results The completion rate of PVI by sole balloon procedures was 56% with the Hotballoon catheter, which was lower than those of the Cryoballoon and Laserballoon catheters (each 88%). Radiofrequency touch-up was most frequently required at the bottom aspect of the inferior pulmonary veins (PVs) in the Cryoballoon group and at the anterior aspect of the superior PVs in the Hotballoon and Laserballoon groups. The Laserballoon catheter had the longest average PVI procedural time (89.2 ± 40 vs 58.4 ± 22 minutes for Hotballoon, 65.1 ± 25 minutes for Cryoballoon, P < .001), but the difference was ultimately removed by the learning curve. There was no significant difference in the major complication or recurrence-free survival rates among the catheter types. Conclusions All 3 balloon-based catheter types allowed feasibility and quality for PVI, even during the learning period. To introduce these new catheters without complications, an experiences of 20 cases with specific clinical settings should be met for each catheter type.
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Affiliation(s)
- Atsushi Kobori
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Yasuhiro Sasaki
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Misun Pak
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Taiji Okada
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Toshiaki Toyota
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Kitae Kim
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Takeshi Kitai
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Natsuhiko Ehara
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Makoto Kinoshita
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Shuichiro Kaji
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Yasuki Kihara
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Yutaka Furukawa
- Department of Cardiology, Kobe City Medical Center General Hospital, Kobe, Japan
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13
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Doshi R, Kumar A, Shariff M, Adalja D, Patel K, Patel K, Desai R, Gullapalli N, Vallabhajosyula S. Comparison of procedural outcomes in patients undergoing catheter vs surgical ablation for atrial fibrillation and heart failure with reduced ejection fraction. J Arrhythm 2021; 37:60-69. [PMID: 33664887 PMCID: PMC7896461 DOI: 10.1002/joa3.12451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/22/2020] [Accepted: 10/17/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND There is a lack of research comparing procedural outcomes of surgical ablation (SA) and catheter ablation (CA) among patients with heart failure with reduced ejection fraction (HFrEF) and atrial fibrillation (AF). The main objective was to compare the short-term procedural outcomes of SA and CA in patients with HFrEF. METHODS We used the national inpatient sample to identify hospitalizations over 18 years with HFrEF hospitalization and AF, and undergoing SA and CA from 2016 to 2017. Furthermore, the clinical outcomes of SA vs CA in AF stratified as nonparoxysmal and paroxysmal were analyzed. RESULTS A total of 1,770 HFrEF hospitalizations with AF who underwent SA and 1,620 HFrEF hospitalizations with AF who underwent CA were included in the analysis. Hospitalizations with CA had higher baseline comorbidities. The in-hospital mortality among HFrEF with AF undergoing SA as compared with CA was similar (2.8% vs 1.9%, respectively, adjusted P-value 0.09). Hospitalizations with SA had a significantly longer length of hospital stay, a higher percentage of postprocedural, and cardiac complications. In HFrEF hospitalizations with nonparoxysmal AF, SA as compared with CA was associated with a higher percentage of in-hospital mortality (2.4% vs 1%, adjusted P-value <.05), a longer length of stay, a higher cost of treatment, and a higher percentage of cardiac complications. CONCLUSION CA is associated with lower in-hospital adverse procedural outcomes as compared with SA among HFrEF hospitalizations with AF. Further research with freedom from AF as one of the outcome is needed between two groups for HFrEF.
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Affiliation(s)
- Rajkumar Doshi
- Department of Internal MedicineUniversity of Nevada Reno School of MedicineRenoNVUSA
| | - Ashish Kumar
- Department of Critical Care MedicineSt John’s Medical College HospitalBengaluruIndia
| | - Mariam Shariff
- Department of Critical Care MedicineSt John’s Medical College HospitalBengaluruIndia
| | - Devina Adalja
- Department of MedicineGMERS Gotri Medical CollegeVadodaraIndia
| | | | - Kirtenkumar Patel
- Department of CardiologyNorth Shore University HospitalManhassetNYUSA
| | - Rupak Desai
- Department of CardiologyAtlanta VA Medical CenterDecaturGAUSA
| | - Nageshwara Gullapalli
- Department of Internal MedicineUniversity of Nevada Reno School of MedicineRenoNVUSA
| | - Saraschandra Vallabhajosyula
- Section of Interventional CardiologyDivision of Cardiovascular MedicineDepartment of MedicineEmory University School of MedicineAtlantaGAUSA
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14
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Keeping it Simple: Balloon Devices for Atrial Fibrillation Ablation Therapy. JACC Clin Electrophysiol 2020; 6:1577-1596. [PMID: 33213820 DOI: 10.1016/j.jacep.2020.08.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 11/22/2022]
Abstract
Atrial fibrillation is a common disease of increasing prevalence. Catheter ablation has evolved into an established therapeutic option that mainly aims to electrically isolate the pulmonary veins from atrial myocardium. The traditional method comprises point-by-point radiofrequency current ablation guided by electroanatomical mapping and has proven to be effective and safe in experienced hands. However, this approach is technically highly demanding and associated with a long learning curve, limiting its widespread utilization. To address these shortcomings, simplified ablation tools for pulmonary vein isolation are needed. In this context, balloon devices promise to ease the procedure by approaching the entire orifice of a targeted pulmonary vein in a single maneuver. This requires less catheter manipulation in the left atrium and often allows ablation of a large volume of tissue with a single application of ablative energy. Two balloon devices-one using cryoenergy, the other laser energy-have already been established in clinical routine and have demonstrated noninferiority when compared with radiofrequency ablation in large randomized trials. More balloon devices are on the verge of being introduced into clinical practice and bear the potential to expand the interventional electrophysiologist's armamentarium when treating atrial fibrillation. The authors review the use of the established balloon devices available for atrial fibrillation ablation and provide a detailed outlook on upcoming balloon technologies, including 3 different balloons utilizing radiofrequency energy as well as a novel cryoballoon.
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15
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Nagase T, Kobori A, Inaba O, Sasaki Y, Tomizawa N, Asano S, Fukunaga H, Mabuchi K, Inoue K, Tanizaki K, Murai T, Iguchi N, Nitta J, Isobe M. Comparison of dragging ablation and point-by-point ablation with a laser balloon on linear lesion formation. J Cardiovasc Electrophysiol 2020; 31:2848-2856. [PMID: 32786049 DOI: 10.1111/jce.14714] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/24/2020] [Accepted: 08/08/2020] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Lesion size and continuity in dragging laser balloon (LB) ablation, which may enable fast and durable pulmonary vein isolation for atrial fibrillation, are unknown. We evaluated the differences in size and continuity of linear lesions formed by dragging ablation and conventional point-by-point ablation using an LB in vitro model. METHODS AND RESULTS Chicken muscles were cauterized using the first-generation LB in dragging and point-by-point fashion. Dragging ablation was manually performed with different dragging speeds (0.5-2°/s) using an overlap ratio of the beginning and last site during one application at 12 W/20 s and 8.5 W/30 s. Point-by-point ablation was performed with 25% and 50% overlap ratios at six energy settings (5.5 W/30 s to 12 W/20 s). Lesion depth, width, and continuity were compared. Lesion continuity was assessed by the surface and deep visible gap degree categorized from 1 (perfect) to 3 (poor). Twenty lesions were evaluated for each ablation protocol. Lesion depth and width in dragging ablation at high power (12 W) were comparable with most measurements in point-by-point ablation. Lesion depth and width were smaller at faster-dragging speed and lower power (8.5 W) in dragging ablation. The surface visible gap degree was better in dragging ablation at all dragging speeds than a 25% overlapped point-by-point ablation (p < .001). CONCLUSION Dragging LB ablation at high power provides deep and continuous linear lesion formation comparable with that of point-by-point LB ablation. However, lesion depth and width depending on the dragging speed and power.
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Affiliation(s)
- Takahiko Nagase
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Atsushi Kobori
- Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
| | - Osamu Inaba
- Department of Cardiology, Saitama Red Cross Hospital, Saitama, Japan
| | - Yasuhiro Sasaki
- Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
| | - Naoki Tomizawa
- Department of Cardiology, Saitama Red Cross Hospital, Saitama, Japan
| | - So Asano
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Hiroshi Fukunaga
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Kei Mabuchi
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Kanki Inoue
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Kohei Tanizaki
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Tatsuya Murai
- Department of Pathology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Nobuo Iguchi
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Junichi Nitta
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Mitsuaki Isobe
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
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16
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Wissner E. Ablation of atrial fibrillation using the fourth-generation cryoballoon Arctic Front Advance PRO. Future Cardiol 2020; 17:81-87. [PMID: 32744064 DOI: 10.2217/fca-2020-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The cryoballoon (CB) is a popular ablation technology used for pulmonary vein isolation. The fourth-generation CB, Arctic Front Advance PRO features a 40% shorter distal tip but retains the internal design from its second-generation predecessor. The Arctic Front Advance PRO and the second-generation CB demonstrated similar thermodynamic characteristics in a computational model. Several observational and retrospective studies established the acute safety and efficacy of the Arctic Front Advance PRO. Real-time electrical isolation was observed in 75-85% of pulmonary veins targeted with the Arctic Front Advance PRO resulting in shorter fluoroscopy and procedure times.
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Affiliation(s)
- Erik Wissner
- Division of Cardiology, University of Illinois at Chicago 840 S Wood St, 905S (MC715) Chicago, IL 60612, USA
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17
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Heeger CH, Tiemeyer CM, Phan HL, Meyer-Saraei R, Fink T, Sciacca V, Liosis S, Brüggemann B, Große N, Fahimi B, Reincke S, Kuck KH, Ouyang F, Vogler J, Eitel C, Tilz RR. Rapid pulmonary vein isolation utilizing the third-generation laserballoon - The PhoeniX registry. IJC HEART & VASCULATURE 2020; 29:100576. [PMID: 32642555 PMCID: PMC7334810 DOI: 10.1016/j.ijcha.2020.100576] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/28/2020] [Accepted: 06/19/2020] [Indexed: 11/20/2022]
Abstract
Background Balloon-based ablation systems for pulmonary vein isolation (PVI) are providing procedural safety and efficacy as well as favourable clinical outcome. Although second-generation laser balloon (LB2) based PVI has been shown safety and efficacy relatively long procedural duration was a strong limitation. The third-generation laser balloon (LB3) offers and automized ablation for rapid PVI. We determined safety, efficacy and procedural characteristics of this new promising ablation system. Methods and results A total of 15 consecutive patients were prospectively enrolled. All patients underwent PVI using the LB3. A total 59/59 PVs (100%) were successfully isolated. Procedural data was compared to the last 15 consecutive patients treated by the LB2. The median procedure time significantly declined from LB2 (91 (86, 105) min) to LB3 (77 (68, 87) min), p < 0.001. Similarly, the median left atrial dwelling time significantly decreased from LB2 (72 (62, 84) min) to LB3 (45 (38, 52) min), p < 0.0001. The total laser time decreased from LB2 (1920 (1765, 2193) sec) to LB3 (1077 (896, 1165) sec), p < 0.00001. A pure single shot PVI was performed in 18/59 PVs (31%). For major adverse events no differences were detected between the groups (LB2 1/15 (6.7%) and LB3 1/15 (6.7%), p = 0.999). Conclusion The LB3 was safe and effective for PVI. Procedure time, LA dwelling time and total laser time significantly decreased compared to LB2.
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Affiliation(s)
- Christian-H. Heeger
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- Corresponding author at: Medizinische Klinik II (Kardiologie, Angiologie, Intensivmedizin), Universitäres Herzzentrum Lübeck, Universitätsklinikum Schleswig-Holstein (UKSH), Ratzeburger Allee 160, D-23538 Lübeck, Germany.
| | - Christian M. Tiemeyer
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Huong-Lan Phan
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Roza Meyer-Saraei
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Thomas Fink
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Vanessa Sciacca
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Spyridon Liosis
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Ben Brüggemann
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Niels Große
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Bezhad Fahimi
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Samuel Reincke
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Karl-Heinz Kuck
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
- LANS Cardio, Stephansplatz 5, 20354 Hamburg, Germany
| | - Feifan Ouyang
- Fuwai Hospital/National Center of Cardiovascular Diseases, Beijing, China
| | - Julia Vogler
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Charlotte Eitel
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
| | - Roland R. Tilz
- University Heart Center Lübeck, Division of Electrophysiology, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
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Huang HD, Rodriguez JM, Serafini NJ, Macias C, Winterfield J, Sharma PS, Larsen T, Krishnan K, Trohman RG. Comparison between minimal fluoroscopy and conventional approaches for visually guided laser balloon pulmonary vein isolation ablation. J Cardiovasc Electrophysiol 2020; 31:1608-1615. [PMID: 32406100 DOI: 10.1111/jce.14546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/17/2020] [Accepted: 05/10/2020] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Although balloon-based techniques, such as the laser balloon (LB) ablation have simplified pulmonary vein isolation (PVI), procedural fluoroscopy usage remains higher in comparison to radiofrequency PVI approaches due to limited 3-dimensional mapping system integration. METHODS In this prospective study, 50 consecutive patients were randomly assigned in alternating fashion to a low fluoroscopy group (LFG; n = 25) or conventional fluoroscopy group (CFG; n = 25) and underwent de novo PVI procedures using visually guided LB technique. RESULTS There was no statistical difference in baseline characteristics or cross-overs between treatment groups. Acute PVI was accomplished in all patients. Mean follow up was 318 ± 69 days. Clinical recurrence of atrial fibrillation after PVI was similar between groups (CFG: 19% vs LFG: 15%; P = .72). Total fluoroscopy time was significantly lower in the LFG than the CFG (1.7 ± 1.4 vs 16.9 ± 5.9 minutes; P < .001) despite similar total procedure duration (143 ± 22 vs 148 ± 22 minutes; P = .42) and mean LA dwell time (63 ± 15 vs 59 ± 10 minutes; P = .28). Mean dose area product was significantly lower in the LFG (181 ± 125 vs 1980 ± 750 μGym2 ; P < .001). Fluoroscopy usage after transseptal access was substantially lower in the LFG (0.63 ± 0.43 vs 11.70 ± 4.32 minutes; P < .001). Complications rates were similar between both groups (4% vs 2%; P = .57). CONCLUSIONS This study demonstrates that LB PVI can be safely achieved using a novel low fluoroscopy protocol while also substantially reducing fluoroscopy usage and radiation exposure in comparison to conventional approaches for LB ablation.
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Affiliation(s)
- Henry D Huang
- Division of Cardiology, Rush University Medical Center, Chicago, Illinois
| | - Jason M Rodriguez
- Division of Cardiology, Rush University Medical Center, Chicago, Illinois
| | | | - Carlos Macias
- Division of Cardiology, UCLA Cardiac Arrhythmia Center, Ronald Reagan UCLA Medical Center, Los Angeles, California
| | - Jeffrey Winterfield
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Parikshit S Sharma
- Division of Cardiology, Rush University Medical Center, Chicago, Illinois
| | - Timothy Larsen
- Division of Cardiology, Rush University Medical Center, Chicago, Illinois
| | - Kousik Krishnan
- Division of Cardiology, Rush University Medical Center, Chicago, Illinois
| | - Richard G Trohman
- Division of Cardiology, Rush University Medical Center, Chicago, Illinois
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Wissner E. The importance of antral pulmonary vein isolation during visually-guided laser balloon ablation. J Cardiovasc Electrophysiol 2020; 31:1606-1607. [PMID: 32367571 DOI: 10.1111/jce.14527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Erik Wissner
- Division of Cardiology, University of Illinois at Chicago, Chicago, Illinois
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20
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Kossyvakis C, Vrachatis DA, Giannopoulos G, Deftereos G, Deftereos S. Visually guided laser ablation for atrial fibrillation: First experience in Greece. Hellenic J Cardiol 2020; 61:357-358. [PMID: 32088329 DOI: 10.1016/j.hjc.2020.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/18/2020] [Accepted: 01/25/2020] [Indexed: 01/02/2023] Open
Affiliation(s)
| | - Dimitrios A Vrachatis
- Department of Cardiology, General Hospital of Athens "G. Gennimatas", Athens, Greece.
| | - Georgios Giannopoulos
- Department of Cardiology, General Hospital of Athens "G. Gennimatas", Athens, Greece.
| | - Gerasimos Deftereos
- Department of Cardiology, General Hospital of Athens "G. Gennimatas", Athens, Greece.
| | - Spyridon Deftereos
- Department of Cardiology, "Attikon" Hospital, National and Kapodistrian University of Athens, Greece
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