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Cryoballoon ablation

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https://www.readbyqxmd.com/read/29147788/dissociated-pulmonary-vein-activity-after-cryoballoon-ablation-and-radiofrequency-ablation-for-atrial-fibrillation-a-propensity-score-matched-analysis
#1
Kenichi Tokutake, Michifumi Tokuda, Seiichiro Matsuo, Ryota Isogai, Kenichi Yokoyama, Mika Kato, Ryohsuke Narui, Shinichi Tanigawa, Seigo Yamashita, Satoru Miyanaga, Michihiro Yoshimura, Teiichi Yamane
Cryoballoons (CBs) have proven to be effective for achieving pulmonary vein isolation (PVI) in patients with atrial fibrillation (AF). Dissociated PV activity (DPVA) after successful radiofrequency PVI is sometimes observed inside the PV and has been found to prove the achievement of electrical disconnection from the left atrium. However, little is known about the incidence or characteristics of DPVA after CB-PVI. The aim of this study was to compare the incidence and characteristics of DPVA in patients undergoing CB and radiofrequency (RF) ablation for AF...
November 17, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29146378/association-of-p-wave-duration-index-with-atrial-fibrillation-recurrence-after-cryoballoon-catheter-ablation
#2
Onur Kaypakli, Hasan Koca, Durmuş Yıldıray Şahin, Sefa Okar, Fadime Karataş, Mevlüt Koç
AIM: We aimed to investigate the relationship between the recurrence of AF and P wave duration index (PWDI) in patients with nonvalvular PAF. METHODS: We included 114 patients who underwent cryoballoon catheter ablation with the diagnosis of paroxysmal atrial fibrillation (PAF) (55 male, 59 female; mean age 55.5±10,9years). PWDI was calculated by dividing the Pwd by the PR interval in DII lead of 12‑lead ECG. Patients had regular follow-up visits with 12-lead ECG, medical history and clinical evaluation...
October 9, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29110167/assessment-of-autonomic-nervous-system-modulation-after-novel-catheter-ablation-techniques-for-atrial-fibrillation-using-multiple-short-term-electrocardiogram-recordings
#3
Satoshi Yanagisawa, Yasuya Inden, Aya Fujii, Yosuke Kamikubo, Yasunori Kanzaki, Monami Ando, Junya Funabiki, Yosuke Murase, Masaki Takenaka, Noriaki Otake, Yoshihiro Ikai, Yusuke Sakamoto, Rei Shibata, Toyoaki Murohara
PURPOSE: The effect of novel catheter ablation techniques for atrial fibrillation (AF) on the autonomic nervous system (ANS) is unclear. This study aimed to assess the ANS after three novel catheter ablation techniques for paroxysmal AF by evaluating heart rate variability (HRV) parameters using a 3-min electrocardiogram recording. METHODS: Two hundred and thirty-five patients who underwent catheter ablation for paroxysmal AF (119 in irrigated-tip, 51 in contact-force sensing-guided, and 65 patients in second-generation cryoballoon ablation) were included...
November 6, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29108897/cryoballoon-ablation-in-atrial-fibrillation-advantages-and-drawbacks
#4
REVIEW
Serge Boveda
Pulmonary vein isolation is the cornerstone of atrial fibrillation ablation and is effective for preventing arrhythmias recurrences, especially in patients with paroxysmal atrial fibrillation. During the last years, cryoballoon ablation has emerged as an unquestionable alternative approach to radiofrequency ablation. Many non-randomized and randomized trials have proven undoubtedly that cryoballoon ablation displays similar efficacy and overall safety profile, when compared to radiofrequency ablation for the treatment of patients with drug-refractory paroxysmal atrial fibrillation...
November 3, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29107190/pulmonary-vein-isolation-cryoablation-for-persistent-and-long-standing-persistent-atrial-fibrillation-patients-clinical-outcomes-from-real-word-multicentric-observational-project
#5
Claudio Tondo, Saverio Iacopino, Paolo Pieragnoli, Giulio Molon, Roberto Verlato, Antonio Curnis, Maurizio Landolina, Giuseppe Allocca, Giuseppe Arena, Gaetano Fassini, Luigi Sciarra, Mario Luzi, Massimiliano Manfrin, Luigi Padeletti
BACKGROUND: Pulmonary vein isolation (PVI) is a cornerstone ablation strategy in the management of patients with atrial fibrillation (AF). Consensus guidelines and statements recommend PVI during the index catheter ablation procedure in patients with paroxysmal and persistent AF. OBJECTIVE: The objective of this analysis was to evaluate patients with persistent and long-standing persistent AF who were treated with the cryoballoon ablation catheter by PVI technique...
October 26, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29107175/entrapment-of-focal-atrial-tachycardia-using-cryoballoon-ablation-sinus-rhythm-in-the-left-atrium-and-ongoing-atrial-tachycardia-in-the-left-atrial-appendage
#6
Hikmet Yorgun, Uğur Canpolat, Banu Evranos, Kudret Aytemir
Left atrial appendage (LAA) is a well-known source of focal atrial tachycardias (AT). Although radio-frequency (RF) energy is the most commonly used technique in such cases, there was an option other than epicardial approach when RF technique fails. Cryoballoon technology is primarily developed to be used for pulmonary vein isolation (PVI). Also, there was no report regarding the isolation of LAA by using cryo-balloon in patients with focal AT. In this case, for the first time in the literature, we successfully isolated the LAA because of failed attempts of RF ablation for focal AT in whom the surface electrogram showed a sinus rhythm while arrhythmia continues inside the LAA...
October 28, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29093410/coronary-artery-spasm-during-cryoballoon-ablation-in-a-patient-with-atrial-fibrillation
#7
Kazuhiro Yajima, Yuichiro Yamase, Hideo Oishi, Noriyuki Ikehara, Yasushi Asai
The patient was a 63-year-old man with drug-resistant atrial fibrillation who developed coronary spasm during cryoballoon ablation (CBA). CBA was started from the left inferior pulmonary vein. ST elevations in II, III, and aVf, with reciprocal ST depressions in V2-5, occurred in association with chest pain just after balloon rewarming and deflation, and the patient's blood pressure fell to 50 mmHg. Coronary angiography revealed 90% diffuse stenosis from the orifice of segment 1 to segment 4 in the right coronary artery...
November 1, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29075979/second-generation-cryoballoon-ablation-for-persistent-atrial-fibrillation-an-updated-meta-analysis
#8
Hazem Omran, Klaus-Jürgen Gutleben, Stephan Molatta, Thomas Fischbach, Birgit Wellmann, Dieter Horstkotte, Britta Körber, Georg Nölker
BACKGROUND: Catheter ablation is an established treatment option for patients with symptomatic atrial fibrillation (AF). The cornerstone of AF ablation is pulmonary vein isolation (PVI). The second-generation cryoballoon (2G-CB) has shown non-inferiority to radiofrequency (RF) ablation in paroxysmal AF in several trials. Growing evidence suggests that 2G-CB is also effective in patients with persistent AF (perAF). The aim of this study was to summarize and analyze available data on safety and mid-term (≥ 12 months) efficacy of PVI using 2G-CB in patients with perAF...
October 26, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29072063/conscious-sedation-during-cryoballoon-ablation-of-atrial-fibrillation-the-feasibility-and-safety-study
#9
Dawid Miśkowiec, Jarosław D Kasprzak, Paulina Wejner-Mik, Ewa Szymczyk, Haval D Qawoq, Paweł Życiński, Tomasz Wcisło, Piotr Pagórek, Karolina Kupczyńska, Piotr Lipiec
BACKGROUND: Cryoballoon ablation for atrial fibrillation (cryoAF) is relatively simple, cost-effective and easy procedure. However, general anesthesia during this procedure may have negative impact on patients mortality and morbidity, as well as procedure costs. AIM: We sought to assess the feasibility and safety of conscious sedation during cryoAF. METHODS: Patients (pts) with paroxysmal or persistent, drug-refractory AF who underwent a first procedure of cryoAF were included in our single-center, retrospective study...
October 25, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29071765/ablation-of-paroxysmal-atrial-fibrillation-using-a-2-nd-generation-cryoballoon-catheter-or-contact-force-sensing-radiofrequency-ablation-catheter-a-comparison-of-costs-and-long-term-clinical-outcomes
#10
Miki Yokokawa, Aman Chugh, Rakesh Latchamsetty, Hamid Ghanbari, Thomas Crawford, Krit Jongnarangsin, Ryan Cunnane, Mohammed Saeed, Kyle Hornsby, Kavita Krishnasamy, Watchara Lohawijarn, Robert Keast, David Karpenko, Frank Bogun, Frank Pelosi, Fred Morady, Hakan Oral
INTRODUCTION: Although noninferiority of cryoballoon ablation (CBA) and radiofrequency catheter ablation for antral pulmonary vein isolation (APVI) has been reported in patients with paroxysmal atrial fibrillation (PAF), it is not clear whether contact force sensing (CF-RFA) and CBA with the 2(nd) generation catheter have similar procedural costs and long-term outcomes. The objective of this study is to compare the long-term efficacy and cost implications of CBA and CF-RFA in patients with PAF...
October 26, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29064127/second-generation-cryoballoon-ablation-for-treatment-of-persistent-atrial-fibrillation-three-year-outcome-and-predictors-of-recurrence-after-a-single-procedure
#11
Ersan Akkaya, Alexander Berkowitsch, Sergej Zaltsberg, Harald Greiss, Christian W Hamm, Johannes Sperzel, Thomas Neumann, Malte Kuniss
INTRODUCTION: Data on long-term outcomes of cryoballoon (CB) ablation for treatment of persistent atrial fibrillation (AF) are sparse. Here, we report the first 3-year follow-up results and predictors of success for catheter ablation using the second-generation CB in patients with persistent AF. METHODS AND RESULTS: For this prospective observational study, we enrolled 101 patients ablated with the second-generation CB at our institution. The endpoint was the first documented recurrence (> 30 sec) of AF, atrial flutter, or atrial tachycardia after a 3-month blanking period...
October 24, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29056997/efficacy-and-safety-of-cryoballoon-ablation-versus-radiofrequency-catheter-ablation-in-atrial-fibrillation-an-updated-meta-analysis
#12
Honglan Ma, Dongdong Sun, Hui Luan, Wei Feng, Yaqiong Zhou, Jine Wu, Caiyun He, Chaofeng Sun
INTRODUCTION: Cryoballoon ablation (CBA) and irrigated radiofrequency catheter ablation (RFCA) are the main treatments for drug-refractory symptomatic atrial fibrillation (AF). AIM: To compare the efficacy and safety between CBA and RFCA for the treatment of AF. MATERIAL AND METHODS: We searched the Embase and Medline databases for clinical studies published up to December 2016. Studies that satisfied our predefined inclusion criteria were included...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/29036571/atrial-flow-dynamics-as-a-determinant-of-tissue-temperature-during-balloon-cryoablation
#13
Justin Ghosh, Mark A McGuire
Aims: Balloon cryoablation is an accepted method of achieving pulmonary vein isolation for the treatment of atrial fibrillation. The relationship between blood flow in the atrium and cryo energy delivery to the tissue remains poorly understood. Methods and results: Controlled cryoablations were performed in vitro using a pulmonary vein phantom constructed from bovine muscle, providing a 20 mm vein ostium. A temperature sensor was mounted within the 'vein wall' at a 1 mm tissue depth...
October 4, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29024212/prevalence-and-predictive-factors-of-left-atrial-tachycardia-occurring-after-second-generation-cryoballoon-ablation-of-atrial-fibrillation
#14
Alexis Hermida, Maciej Kubala, Sarah Traullé, Otilia Buiciuc, Serge Quenum, Jean-Sylvain Hermida
INTRODUCTION: Assess the prevalence and predictors of Left Atrial Tachycardia (LAT) after cryoballoon ablation of pulmonary veins. METHODS AND RESULTS: Patients who underwent catheter ablation of pulmonary veins with a second-generation cryoballoon for symptomatic paroxysmal (151/270, 56%) or persistent (119/270, 44%) atrial fibrillation were entered in a single-centre prospective registry. Patients who experienced post-cryoballoon LAT (pcryo-LAT) were selected on the basis of 12-lead ECG characteristics...
October 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29016870/complications-of-pulmonary-vein-isolation-in-atrial-fibrillation-predictors-and-comparison-between-four-different-ablation-techniques-results-from-the-middelheim-pvi-registry
#15
Yves De Greef, Edwin Ströker, Bruno Schwagten, Kaspars Kupics, Jeroen De Cocker, Gian-Battista Chierchia, Carlo de Asmundis, Dirk Stockman, Ian Buysschaert
Aims: To define predictors of complications of pulmonary vein isolation (PVI) and compare safety between different ablation techniques. Methods and results: One thousand patients with atrial fibrillation (AF) (age 60 ± 10, 72% males, CHA2DS2-VASc score 1 ± 1) underwent PVI using various techniques: conventional PVI (CPVI) using mapping with irrigated point-per-point RF ablation (n = 576), multi-electrode RF ablation with the pulmonary vein ablation catheter (PVAC) (n = 272) or high density mesh ablator (HDMA) (n = 59) and cryoballoon (CB) ablation (n = 93)...
August 3, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016780/analysis-of-the-heart-rate-variability-during-cryoballoon-ablation-of-atrial-fibrillation
#16
Hitoshi Mori, Ritsushi Kato, Yoshifumi Ikeda, Koji Goto, Sayaka Tanaka, So Asano, Yuichiro Shiki, Takahiko Nagase, Shiro Iwanaga, Shigeyuki Nishimura, Toshihiro Muramatsu, Kazuo Matsumoto
Aims: Vagal responses such as marked bradycardia or a rapid blood pressure decrease are often observed during pulmonary vein (PV) isolation of atrial fibrillation (AF) using a cryoballoon (CB). However, the relationship between the marked vagal response and change in the heart rate variability (HRV) as a marker of the autonomic tone is not well understood. Methods and results: Fifty-four paroxysmal AF patients underwent CB ablation. The CB ablation was started from the right sided PVs in 25 patients (R group) and left sided PVs in 29 (L group)...
July 31, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016779/is-less-more-impact-of-different-ablation-protocols-on-periprocedural-complications-in-second-generation-cryoballoon-based-pulmonary-vein-isolation
#17
Laura Rottner, Thomas Fink, Christian-Hendrik Heeger, Michael Schlüter, Britta Goldmann, Christine Lemes, Tilman Maurer, Bruno Reißmann, Enida Rexha, Johannes Riedl, Francesco Santoro, Peter Wohlmuth, Shibu Mathew, Christian Sohns, Feifan Ouyang, Karl-Heinz Kuck, Andreas Metzner
Aims: Second-generation cryoballoon (CB2) based pulmonary vein isolation (PVI) has emerged as an effective treatment option for symptomatic atrial fibrillation (AF). The current study sought to assess the impact of different ablation protocols on the incidence and characteristics of procedural complications in a large patient cohort. Methods and results: A total of 563 consecutive patients with symptomatic AF who underwent CB2-based ablation between July 2012 and January 2016, were assessed...
July 24, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016768/pulmonary-vein-re-mapping-after-cryoballoon-ablation-for-atrial-fibrillation
#18
Kenichi Yokoyama, Michifumi Tokuda, Seiichiro Matsuo, Ryota Isogai, Kenichi Tokutake, Mika Kato, Ryohsuke Narui, Shinichi Tanigawa, Seigo Yamashita, Keiichi Inada, Michihiro Yoshimura, Teiichi Yamane
Aims: Establishment of pulmonary vein isolation (PVI) during cryoballoon (CB) ablation is generally confirmed by use of an octapolar inner-lumen mapping catheter (Achieve®). The aim of this study is to evaluate the residual PV potential (PVP) using the conventional circular catheter after CB-PVI. Methods and results: A total of 105 consecutive patients (418 PVs) with paroxysmal AF who underwent the initial CB-PVI were prospectively included in this study. Of those, 305 (73%) PVs with real-time recordings of PVP elimination by Achieve® catheter during successful PVI were included...
August 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016761/pulmonary-vein-laceration-during-cryoballoon-ablation-for-the-treatment-of-atrial-fibrillation
#19
Shiro Nakahara, Shigeyoshi Gon, Hiroshi Takano
No abstract text is available yet for this article.
July 21, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016748/the-second-generation-cryoballoon-has-improved-durable-isolation-of-left-but-not-right-pulmonary-veins-new-insights-from-a-multicentre-study
#20
Raphaël P Martins, Vincent Galand, Olivier Cesari, Antoine Milhem, Nathalie Behar, Vincent Auffret, Jean-Claude Daubert, Philippe Mabo, Dominique Pavin
Aims: Pulmonary vein isolation (PVI) using second-generation cryoballoon (CB2) is associated with improved outcomes compared with first generation (CB1). We aimed at investigating the characteristics of left and right PV reconnections after CB1 and CB2 ablations in patients with clinical recurrences requiring redo ablation. Methods and results: From 2010 to 2016, 776 patients underwent 28-mm cryoballoon PVI for symptomatic paroxysmal atrial fibrillation (AF) in 3 centres, 279 with CB1 and 497 with CB2...
July 12, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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