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Yamaguchi J, Takigawa M, Goya M, Martin CA, Negishi M, Yamamoto T, Ikenouchi T, Goto K, Shigeta T, Kawamura I, Nishimura T, Takamiya T, Tao S, Miyazaki S, Sasano T. Impact of contact force on the lesion characteristics of very high-power short-duration ablation using a QDOT-MICRO catheter. J Arrhythm 2024; 40:247-255. [PMID: 38586837 PMCID: PMC10995585 DOI: 10.1002/joa3.12992] [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: 08/06/2023] [Revised: 01/05/2024] [Accepted: 01/06/2024] [Indexed: 04/09/2024] Open
Abstract
Background Lesion size is reported to become larger as contact force (CF) increases. However, this has not been systematically evaluated in temperature-guided very high-power short-duration (vHPSD) ablation, which was therefore the purpose of this study. Methods Radiofrequency applications (90 W/4 s, temperature-control mode) were performed in excised porcine myocardium with four different CFs of 5, 15, 25, and 35 g using QDOT-MICRO™ catheter. Ten lesions for each combination of settings were created, and lesion metrics and steam-pops were compared. Results A total of 320 lesions were analyzed. Lesion depth, surface area, and volume were smallest for CF of 5 g than for 15, 25, and 35 g (depth: 2.7 mm vs. 2.9 mm, 3.0 mm, 3.15 mm, p < .01; surface area: 38.4 mm2 vs. 41.8 mm2, 43.3 mm2, 41.5 mm2, p < .05; volume: 98.2 mm3 vs. 133.3 mm3, 129.4 mm3, 126.8 mm3, p < .01 for all pairs of groups compared to CF = 5 g). However, no significant differences were observed between CFs of 15-35 g. Average power was highest for CF of 5 g, followed by 15, 25, and 35 g (83.2 W vs. 82.1 W vs. 77.1 W vs. 66.1 W, p < .01 for all pairs), reflecting the higher incidence of temperature-guided power titration with greater CFs (5 g:8.8% vs. 15 g:52.5% vs. 25 g:77.5% vs. 35 g:91.2%, p < .01 for all pairs except for 25 g vs. 35 g). The incidence of steam-pops did not significantly differ between four groups (5 g:3.8% vs. 15 g:10% vs. 25 g:6.2% vs. 35 g:2.5%, not significant for all pairs). Conclusions For vHPSD ablation, lesion size does not become large once the CF reaches 15 g, and the risk of steam-pops may be mitigated through power titration even in high CFs.
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Affiliation(s)
- Junji Yamaguchi
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
- Department of Clinical and Diagnostic Laboratory ScienceTokyo Medical and Dental UniversityTokyoJapan
| | - Masateru Takigawa
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Masahiko Goya
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | | | - Miho Negishi
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Tasuku Yamamoto
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Takashi Ikenouchi
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Kentaro Goto
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Takatoshi Shigeta
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Iwanari Kawamura
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Takuro Nishimura
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Tomomasa Takamiya
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Susumu Tao
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Shinsuke Miyazaki
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
| | - Tetsuo Sasano
- Department of Cardiovascular MedicineTokyo Medical and Dental University HospitalTokyoJapan
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Heeger CH, Kuck KH, Tilz RR. Very high-power short-duration catheter ablation for treatment of cardiac arrhythmias: Insights from the FAST and FURIOUS study series. J Cardiovasc Electrophysiol 2024; 35:547-556. [PMID: 37855621 DOI: 10.1111/jce.16113] [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: 09/17/2023] [Revised: 09/27/2023] [Accepted: 10/10/2023] [Indexed: 10/20/2023]
Abstract
The QDOT MICRO™ Catheter is a novel open-irrigated contact force-sensing radiofrequency ablation catheter. It offers very high-power short-duration (vHPSD) ablation with 90 W for 4 s to improve safety and efficacy of catheter ablation procedures. Although the QDOT MICRO™ Catheter was mainly designed for pulmonary vein isolation (PVI) its versatility to treat atrial fibrillation (AF) and other types of arrhythmias was recently evaluated by the FAST and FURIOUS study series and other studies and will be presented in this article. Available study and registry data as well as case reports concerning utilization of the QDOT MICRO™ Catheter for the treatment of cardiac arrhythmias including AF, focal and macroreentry atrial tachycardia, typical atrial flutter by cavotricuspid isthmus block, premature ventricular contractions, and accessory pathways were reviewed and summarized. In summary, the QDOT MICRO™ Catheter showed safety and efficacy for PVI and is able to treat also other types of arrhythmias as is was recently evaluated by case reports and the FAST and FURIOUS studies.
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Affiliation(s)
- Christian-H Heeger
- Department of Rhythmology, University Hospital Schleswig-Holstein, University Heart Center Lübeck, Lubeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Karl-Heinz Kuck
- Department of Rhythmology, University Hospital Schleswig-Holstein, University Heart Center Lübeck, Lubeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Roland R Tilz
- Department of Rhythmology, University Hospital Schleswig-Holstein, University Heart Center Lübeck, Lubeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
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Szegedi N, Salló Z, Nagy VK, Osztheimer I, Hizoh I, Lakatos B, Boussoussou M, Orbán G, Boga M, Ferencz AB, Komlósi F, Tóth P, Perge P, Kovács A, Merkely B, Gellér L. Long-Term Durability of High- and Very High-Power Short-Duration PVI by Invasive Remapping: The HPSD Remap Study. Circ Arrhythm Electrophysiol 2024; 17:e012402. [PMID: 38284286 PMCID: PMC10876176 DOI: 10.1161/circep.123.012402] [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: 06/07/2023] [Accepted: 01/03/2024] [Indexed: 01/30/2024]
Abstract
BACKGROUND High-power short-duration ablation has shown impressive efficacy and safety for pulmonary vein isolation (PVI); however, initial efficacy results with very high power short-duration ablation were discouraging. This study compared the long-term durability of PVI performed with a 90- versus 50-W power setting. METHODS Patients were randomized 1:1 to undergo PVI with the QDOT catheter using a power setting of 90 or 50 W. Three months after the index procedure, patients underwent a repeat electrophysiology study to identify pulmonary vein reconnections. Patients were followed for 12 months to detect AF recurrences. RESULTS We included 46 patients (mean age, 64 years; women, 48%). Procedure (76 versus 84 minutes; P =0.02), left atrial dwell (63 versus 71 minutes; P =0.01), and radiofrequency (303 versus 1040 seconds; P <0.0001) times were shorter with 90- versus 50-W procedures, while the number of radiofrequency applications was higher with 90 versus 50 W (77 versus 67; P =0.01). There was no difference in first-pass isolation (83% versus 82%; P =1.0) or acute reconnection (4% versus 14%; P =0.3) rates between 90 and 50 W. Forty patients underwent a repeat electrophysiology study. Durable PVI on a per PV basis was present in 72/78 (92%) versus 68/77 (88%) PVs in the 90- and 50-W energy setting groups, respectively; effect size: 72/78-68/77=0.040, lower 95% CI=-0.051 (noninferiority limit=-0.1, ie, noninferiority is met). No complications occurred. There was no difference in 12-month atrial fibrillation-free survival between the 90- and 50-W groups (P =0.2). CONCLUSIONS Similarly high rates of durable PVI and arrhythmia-free survival were achieved with 90 and 50 W. Procedure, left atrial dwell, and radiofrequency times were shorter with 90 W compared with 50 W. The sample size is too small to conclude the safety and long-term efficacy of the high and very high-power short-duration PVI; further studies are needed to address this topic. REGISTRATION URL: https://www.clinicaltrials.gov; Unique identifier: NCT05459831.
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Affiliation(s)
- Nándor Szegedi
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Zoltán Salló
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Vivien Klaudia Nagy
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - István Osztheimer
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - István Hizoh
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Bálint Lakatos
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Melinda Boussoussou
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Gábor Orbán
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Márton Boga
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Arnold Béla Ferencz
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Ferenc Komlósi
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Patrik Tóth
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Péter Perge
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Attila Kovács
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Béla Merkely
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - László Gellér
- Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
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Pranata R, Karwiky G, Iqbal M. Very-high-power Short-duration Ablation versus Conventional Ablation for Pulmonary Vein Isolation in Atrial Fibrillation: Systematic Review and Meta-analysis. Arrhythm Electrophysiol Rev 2023; 12:e30. [PMID: 38173799 PMCID: PMC10762667 DOI: 10.15420/aer.2023.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/02/2023] [Indexed: 01/05/2024] Open
Abstract
The aim of this study was to compare the effectiveness and safety of very-high-power short-duration (VHPSD) ablation (70-90 W/4-7 s) with conventional ablation (30-40 W/>20 s, 50 W/7-11 s) for pulmonary vein isolation (PVI) in patients with AF. A total of 13 studies were included in this analysis (1,527 patients). AF recurrence occurred in 14% (95% CI [11-18%]) of the VHPSD group. VHPSD was associated with lower AF recurrence (OR 0.65; 95% CI [0.48-0.89]; p=0.006) compared with the conventional ablation group. Subgroup analysis showed that additional ablation beyond PVI had a similar rate of AF recurrence (16% versus 10%) compared with PVI alone. Procedure and ablation durations were significantly shorter in the VHPSD group with a mean differences of -14.4 minutes (p=0.017) and -14.1 minutes (p<0.001), respectively. Complications occurred in 6% (95% CI [3-9%]) of the VHPSD group, and the rate was similar between the two groups (OR 1.03; 95% CI [0.60-1.80]; p=0.498). VHPSD ablation resulted in less AF recurrence and a shorter procedure time. Additional ablation beyond PVI alone in VHPSD may not provide additional benefits.
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Affiliation(s)
- Raymond Pranata
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Padjadjaran, Hasan Sadikin General Hospital Bandung, Indonesia
| | - Giky Karwiky
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Padjadjaran, Hasan Sadikin General Hospital Bandung, Indonesia
| | - Mohammad Iqbal
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Padjadjaran, Hasan Sadikin General Hospital Bandung, Indonesia
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Boga M, Suhai FI, Orbán G, Salló Z, Nagy KV, Szegedi L, Jokkel Z, Csőre J, Osztheimer I, Perge P, Gupta D, Merkely B, Gellér L, Szegedi N. Incidence and predictors of stroke and silent cerebral embolism following very high-power short-duration atrial fibrillation ablation. Europace 2023; 25:euad327. [PMID: 37931067 PMCID: PMC10653180 DOI: 10.1093/europace/euad327] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/22/2023] [Accepted: 10/02/2023] [Indexed: 11/08/2023] Open
Abstract
AIMS Cerebral thrombo-embolism is a dreaded complication of pulmonary vein isolation (PVI) for atrial fibrillation; its surrogate, silent cerebral embolism (SCE) can be detected by diffusion-weighted brain magnetic resonance imaging (bMRI). Initial investigations have raised a concern that very high-power, short-duration (vHPSD; 90 W/4 s) temperature-controlled PVI with the QDOT Micro catheter may be associated with a higher incidence of SCE compared with low-power long-duration ablation. We aimed to assess the incidence of procedural complications of vHPSD PVI with an emphasis on cerebral safety. METHODS AND RESULTS We enrolled 328 consecutive patients undergoing their PVI procedure using vHPSD. A subgroup of 61 consecutive patients underwent diffusion-weighted bMRI within 24 h of the procedure, and incidence and predictors of SCE were studied. The mean procedure time and left atrial dwell time for the overall cohort were 69.6 ± 24.1 and 46.5 ± 21.5 min, respectively. First-pass isolation was achieved in 82%. No stroke or transient ischaemic attack occurred. Silent cerebral embolism was identified in 5 of 61 patients (8.2%). Silent cerebral embolism following procedures was significantly associated with lower baseline generator impedance (105.8 vs. 112.6 Ω, P < 0.0001) and with intermittent loss of catheter-tissue contact during ablation (14.1% vs. 6.1%, P < 0.0001). CONCLUSION Very high-power, short-duration PVI is a safe technique with an excellent acute success rate. Silent cerebral embolism incidence in our cohort was below the previously reported range, with no clinically overt cerebral complications. Lower baseline generator impedance and loss of contact during ablation may contribute to a higher risk of SCEs.
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Affiliation(s)
- Márton Boga
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Ferenc Imre Suhai
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Gábor Orbán
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Zoltán Salló
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Klaudia Vivien Nagy
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Levente Szegedi
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Zsófia Jokkel
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Judit Csőre
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - István Osztheimer
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Péter Perge
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Dhiraj Gupta
- Liverpool Heart and Chest Hospital, University of Liverpool, Liverpool, UK
| | - Béla Merkely
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - László Gellér
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
| | - Nándor Szegedi
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest 1122, Hungary
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6
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Yamaguchi J, Takigawa M, Goya M, Martin CA, Yamamoto T, Ikenouchi T, Shigeta T, Nishimura T, Tao S, Miyazaki S, Sasano T. Comparison of three different approaches to very high-power short-duration ablation using the QDOT-MICRO catheter. J Cardiovasc Electrophysiol 2023; 34:888-897. [PMID: 36852902 DOI: 10.1111/jce.15875] [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: 10/27/2022] [Revised: 01/31/2023] [Accepted: 02/20/2023] [Indexed: 03/01/2023]
Abstract
BACKGROUND/OBJECTIVES The QDOT-MICRO™ catheter allows very high-power and short-duration (vHPSD) ablation. This study aimed to investigate lesion characteristics using different ablation settings. METHODS Radiofrequency applications (90 W/4 s, temperature-control mode with 55°C or 60°C target) were performed in excised porcine myocardium using three different approaches: single (SA), double nonrepetitive (DNRA), and double repetitive applications (DRA). Applications were performed with an interval of 1 min for DNRA, and without interval for DRA. RESULTS A total of 480 lesions were analyzed. Lesion depth and volume were largest for DRA followed by DNRA and SA regardless of catheter direction (depth: 3.8 vs. 3.3 vs. 2.6 mm, p < .001 for all comparisons; volume: 176.6 vs. 145.1 vs. 97.0 mm3 , p < .001 for all comparisons). Surface area was significantly larger for DRA than for SA (45.1 vs. 38.3 mm2 , p < .001) and larger for DNRA than for SA (44.5 vs. 38.3 mm2 , p < .001), but was similar between DRA and DNRA (45.1 vs. 44.5 mm2 , p = .54). Steam-pops more frequently occurred for DRA than for SA (15.6% vs. 4.4%, p = .004) and DNRA (15.6% vs. 6.9%, p = .061), but the incidence was similar between SA and DNRA (4.4% vs. 6.9%, p = 1). Although surface area and lesion volume were larger in lesions with steam-pops than without steam-pops (46.5 vs. 38.1 mm2 , p = .018 and 128.3 vs. 96.8 mm3 , p = .068, respectively), lesions were not deeper (pop(+): 2.5 mm vs. pop(-): 2.6 mm, p = .75). CONCLUSIONS DNRA produces larger lesions than SA without increasing the risk of steam-pops. DRA produces the largest lesions among the three groups, but with an increased risk of steam-pops. Even with steam-pops, lesions do not become deeper in vHPSD ablation.
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Affiliation(s)
- Junji Yamaguchi
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan.,Department of Clinical and Diagnostic Laboratory Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masateru Takigawa
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Masahiko Goya
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Claire A Martin
- Royal Papworth Hospital NHS Foundation Trust and Cambridge University, Cambridge, UK
| | - Tasuku Yamamoto
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Takashi Ikenouchi
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Takatoshi Shigeta
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Takuro Nishimura
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Susumu Tao
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Shinsuke Miyazaki
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Tetsuo Sasano
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
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Jin S, Lin W, Fang X, Liao H, Zhan X, Fu L, Jiang J, Ye X, Liu H, Chen Y, Pu S, Wu S, Deng H, Xue Y. High-Power, Short-Duration Ablation under the Guidance of Relatively Low Ablation Index Values for Paroxysmal Atrial Fibrillation: Long-Term Outcomes and Characteristics of Recurrent Atrial Arrhythmias. J Clin Med 2023; 12:jcm12030971. [PMID: 36769620 PMCID: PMC9917927 DOI: 10.3390/jcm12030971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE The purpose of this study was to evaluate the difference in effectiveness and safety of high-power, short-duration (HPSD) radiofrequency catheter ablation (RFA) guided by relatively low ablation index (AI) values and conventional RFA in paroxysmal atrial fibrillation (PAF) patients. METHODS The HPSD RFA strategy (40-50 W, AI 350-400 for anterior, 320-350 for posterior wall; n = 547) was compared with the conventional RFA strategy (25-40 W, without AI; n = 396) in PAF patients who underwent their first ablation. Propensity-score matching analyses were used to compare the outcomes of the two groups while controlling for confounders. RESULTS After using propensity-score matching analysis, the HPSD group showed a higher early recurrence rate (22.727% vs. 13.636%, p = 0.003), similar late recurrence rate, and comparable safety (p = 0.604) compared with the conventional group. For late recurrent atrial arrhythmia types, the rate of regular atrial tachycardia was significantly higher in the HPSD group (p = 0.013). Additionally, the rate of chronic pulmonary vein reconnection and non-pulmonary vein triggers during repeat procedures was similar in both groups. CONCLUSIONS For PAF patients, compared with the conventional RFA strategy, the HPSD RFA strategy at relatively low AI settings had a higher early recurrence rate, similar long-term success rate, and comparable safety.
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Affiliation(s)
- Shuyu Jin
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Weidong Lin
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Xianhong Fang
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Hongtao Liao
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Xianzhang Zhan
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Lu Fu
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Junrong Jiang
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Xingdong Ye
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Huiyi Liu
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Yanlin Chen
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Sijia Pu
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Shulin Wu
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Hai Deng
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
- Correspondence: (H.D.); (Y.X.)
| | - Yumei Xue
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
- Correspondence: (H.D.); (Y.X.)
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