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https://www.readbyqxmd.com/read/28260190/general-anesthesia-improves-contact-force-and-reduces-gap-formation-in-pulmonary-vein-isolation-a-comparison-with-conscious-sedation
#1
Akio Chikata, Takeshi Kato, Takanori Yaegashi, Satoru Sakagami, Chieko Kato, Takahiro Saeki, Keiichi Kawai, Shin-Ichiro Takashima, Hisayoshi Murai, Soichiro Usui, Hiroshi Furusho, Shuichi Kaneko, Masayuki Takamura
Compared to conscious sedation (CS), the use of general anesthesia (GA) in pulmonary vein isolation (PVI) is associated with a lower recurrence rate of atrial fibrillation (AF). GA may improve catheter stability and mapping system accuracy compared to CS, but its influence on contact force (CF) parameters during ipsilateral PVI has not previously been investigated. The study population comprised 176 consecutive patients (107 in GA group and 69 in CS group) with AF who underwent their first PVI procedure. We retrospectively assessed CF parameters, force-time integral (FTI), FTI/wall thickness during anatomical ipsilateral PVI and long-term outcome after ablation...
March 4, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28215568/reduction-in-radiation-dose-for-atrial-fibrillation-ablation-over-time-a-12-year-single-center-experience-of-2344-patients
#2
Aleksandr Voskoboinik, Elana S Kalman, Yonatan Savicky, Paul B Sparks, Joseph B Morton, Geoffrey Lee, Peter M Kistler, Jonathan M Kalman
BACKGROUND: Pulmonary vein isolation (PVI) is a well-established treatment of atrial fibrillation (AF), with contact force (CF)-sensing catheters joining 3-dimensional mapping systems and image integration as technological advancements over the last decade. OBJECTIVE: The purpose of this study was to analyze trends in radiation exposure for AF ablation over the last 12 years at our center. METHODS: We reviewed prospectively collected data of 2344 consecutive PVI procedures for either paroxysmal or persistent AF between January 2004 and December 2015...
February 12, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28209944/impact-of-contact-force-technology-on-reducing-the-recurrence-and-major-complications-of-atrial-fibrillation-ablation-a-systematic-review-and-meta-analysis
#3
Xianhui Zhou, Wenkui Lv, Wenhui Zhang, Yuanzheng Ye, Yaodong Li, Qina Zhou, Qiang Xing, Jianghua Zhang, Yanmei Lu, Ling Zhang, Hongli Wang, Wen Qin, Baopeng Tang
Contact force (CF) monitoring can be useful in accomplishing circumferential pulmonary vein (PV) isolation for atrial fibrillation (AF). This meta-analysis aimed to assess the efficacy and safety of a CF-sensing catheter in treating AF. Randomized controlled trials or non-randomized observational studies comparing AF ablation using CF-sensing or standard non-CF (NCF)-sensing catheters were identified from PubMed, EMBASE, Cochrane Library, Wanfang Data, and China National Knowledge Infrastructure (January 1, 1998-2016)...
February 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28190945/mems-based-flexible-force-sensor-for-tri-axial-catheter-contact-force-measurement
#4
Hardik J Pandya, Jun Sheng, Jaydev P Desai
Atrial fibrillation (AFib) is a significant healthcare problem caused by the uneven and rapid discharge of electrical signals from pulmonary veins (PVs). The technique of radiofrequency (RF) ablation can block these abnormal electrical signals by ablating myocardial sleeves inside PVs. Catheter contact force measurement during RF ablation can reduce the rate of AFib recurrence, since it helps to determine effective contact of the catheter with the tissue, thereby resulting in effective power delivery for ablation...
February 2017: Journal of Microelectromechanical Systems
https://www.readbyqxmd.com/read/28185351/persistent-atrial-fibrillation-ablation-with-or-without-contact-force-sensing
#5
Ayman A Hussein, Amr F Barakat, Walid I Saliba, Khaldoun G Tarakji, Mohamed Bassiouny, Bryan Baranowski, Patrick Tchou, Mandeep Bhargava, Thomas Dresing, Thomas Callahan, Daniel Cantillon, Mohamed Kanj, Bruce D Lindsay, Oussama M Wazni
INTRODUCTION: Arrhythmia recurrences remain common after ablation of persistent atrial fibrillation (PersAF). Contact force sensing catheters have been introduced for objective assessment of contact during radiofrequency application and have been suggested to improve outcomes in ablation of paroxysmal AF, but little is known about their role in PersAF ablation. We aimed to compare the procedural profiles and outcomes of (PersAF) ablation with or without using contact force (CF) sensing catheters...
February 10, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28150508/is-the-knowledge-of-contact-force-beneficial-in-pulmonary-vein-antrum-isolation
#6
Rune Borregaard, Henrik Kjærulf Jensen, Bawer Jalal Tofig, Samuel Alberg Thrysøe, Christian Gerdes, Jens Cosedis Nielsen, Peter Lukac
OBJECTIVE: To investigate the effect of the operator knowing the real-time contact force (CF) on the efficacy of pulmonary vein antrum isolation (PVAI). METHODS: Fifty patients with paroxysmal atrial fibrillation (AF) or short lasting persistent AF were randomized to CF guided PVAI (n = 25) or conventional PVAI (n = 25). In the CF guided group, CF between 10 and 40 grams (g) was aimed at. Efficacy of PVAI was measured as reduction in AF burden (AFB) and time to AF recurrence detected by implantable cardiac monitor (ICM), inserted 3 months before PVAI...
February 2, 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28087113/video-assisted-thoracoscopic-diaphragm-plication-using-a-running-suture-technique-is-durable-and-effective
#7
David S Demos, Mark F Berry, Leah M Backhus, Joseph B Shrager
OBJECTIVE: Surgeons have hesitated to adopt minimally invasive diaphragm plication techniques because of technical limitations rendering the procedure cumbersome or leading to early failure or reduced efficacy. We sought to demonstrate efficacy and durability of our thoracoscopic plication technique using a single running suture. METHODS: We retrospectively reviewed patients who underwent our technique for diaphragm plication since 2008. We used a single, buttressed, double-layered, to-and-fro running suture with additional plicating horizontal mattress sutures as needed...
December 21, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28069836/optimization-of-catheter-tissue-contact-during-pulmonary-vein-isolation-the-impact-of-atrial-rhythm
#8
Roberto De Ponti, Raffaella Marazzi, Lorenzo A Doni, Jacopo Marazzato, Claudia Baratto, Jorge A Salerno-Uriarte
AIMS: During pulmonary vein isolation (PVI), even if operators are aware of the contact force (CF), its values may greatly vary and the impact of cardiac rhythm has not been thoroughly investigated yet. This study aims at assessing the actual values of CF, the applications with suboptimal CF, and the impact of cardiac rhythm on CF during PVI. METHODS AND RESULTS: Twenty patients undergoing point-by-point PVI with a CF-sensing catheter were considered. CF target was between 6 and 40 g...
January 8, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28063111/comparison-of-catheter-ablation-for-paroxysmal-atrial-fibrillation-between-cryoballoon-and-radiofrequency-a-meta-analysis
#9
REVIEW
Chao-Feng Chen, Xiao-Fei Gao, Xu Duan, Bin Chen, Xiao-Hua Liu, Yi-Zhou Xu
PURPOSE: The present systematic review and meta-analysis aimed to assess and compare the safety and efficacy of radiofrequency (RF) and cryoballoon (CB) ablation for paroxysmal atrial fibrillation (PAF). RF and CB ablation are two frequently used methods for pulmonary vein isolation in PAF, but which is a better choice for PAF remains uncertain. METHODS: A systematic review was conducted in Medline, PubMed, Embase, and Cochrane Library. All trials comparing RF and CB ablation were screened and included if the inclusion criteria were met...
January 7, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/27940124/contact-force-guided-single-catheter-approach-for-pulmonary-vein-isolation-feasibility-outcomes-and-cost-effectiveness
#10
Thomas Pambrun, Stéphane Combes, Pedro Sousa, Mathieu Le Bloa, Rim El Bouazzaoui, Delphine Grand-Larrieu, Nathaniel Thompson, Ruairidh Martin, Nicolas Combes, Serge Boveda, Michel Haïssaguerre, Jean-Paul Albenque
BACKGROUND: For conventional ablation of paroxysmal atrial fibrillation (AF), an ablation catheter in conjunction with a circular mapping catheter (CMC) is typically used for pulmonary vein isolation (PVI). OBJECTIVE: The purpose of this study was to evaluate an approach for PVI with a single contact-force (CF) ablation catheter in terms of procedural reliability, outcomes, and cost-effectiveness. METHODS: One hundred consecutive patients with paroxysmal AF were included in the study...
December 7, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27909471/contact-force-and-atrial-fibrillation-ablation
#11
REVIEW
Ullah W, Schilling Rj, Wong T
Catheters able to measure the force and vector of contact between the catheter tip and myocardium are now available. Pre-clinical work has established that the degree of contact between the radiofrequency ablation catheter and myocardium correlates with the size of the delivered lesion. Excess contact is associated with steam pops and perforation. Catheter contact varies within the left atrium secondary to factors including respiration, location, atrial rhythm and the trans-septal catheter delivery technology used...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27816321/safety-and-efficacy-of-contemporary-catheter-ablation-for-atrial-fibrillation-patients-with-a-history-of-cardioembolic-stroke-in-the-era-of-direct-oral-anticoagulants
#12
Kimitaka Nishizaki, Taihei Itoh, Masaomi Kimura, Yuichi Tsushima, Yoshihiro Shoji, Takahiko Kinjo, Yuji Ishida, Kenichi Sasaki, Daisuke Horiuchi, Shingo Sasaki, Hirofumi Tomita, Ken Okumura
BACKGROUND: The safety and efficacy of the contemporary atrial fibrillation (AF) ablation in patients with a recent or previous history of cardioembolic stroke (CS) or transient ischemic attack (TIA) remain to be established. METHODS: A total of 447 patients who underwent first-ever contact force (CF)-guided AF ablation with circumferential pulmonary vein isolation were included. Of these, 17 had CS or TIA within 6 months before ablation (Group 1), 30 more than 6 months before ablation (Group 2), and the other 400 without CS or TIA (Group 3)...
November 2, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27788997/use-of-the-new-contact-force-sensing-ablation-catheter-dramatically-reduces-fluoroscopy-time-during-atrial-fibrillation-ablation-procedures
#13
Aditi Naniwadekar, Kamal Joshi, Allan Greenspan, Sumeet Mainigi
OBJECTIVES: To study the impact of contact force (CF) sensing on fluoroscopy, procedure, left atrial (LA) and ablation times and number of ablations during atrial fibrillation (AF) ablation. BACKGROUND: Catheter ablation is an effective treatment for symptomatic AF. Recently a new ablation catheter providing real-time CF has been approved for use. METHODS: A nested case-control study was performed comparing radiofrequency ablation of AF using the irrigated CF-sensing ThermoCool SmartTouch catheter versus open-irrigated ThermoCool SF catheter (Biosense Webster, Inc...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27755138/efficacy-of-adjunctive-measures-used-to-assist-pulmonary-vein-isolation-for-atrial-fibrillation-a-systematic-review
#14
Girish M Nair, Roshan Raut, Karan Bami, Pablo B Nery, Calum J Redpath, Mouhannad M Sadek, Martin S Green, David H Birnie
PURPOSE OF REVIEW: Pulmonary vein reconnection leading to recurrence of atrial arrhythmias after pulmonary vein isolation (PVI) for atrial fibrillation remains a significant challenge. A number of adjunctive measures during PVI have been used to attempt to reduce pulmonary vein reconnection and recurrence of atrial arrhythmias. We performed a systematic review of the literature and meta-analysis of studies evaluating the efficacy of adjunctive measures used during PVI in reducing recurrent atrial arrhythmias...
January 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/27742775/influence-of-energy-source-on-early-atrial-fibrillation-recurrences-a-comparison-of-cryoballoon-vs-radiofrequency-current-energy-ablation-with-the-endpoint-of-unexcitability-in-pulmonary-vein-isolation
#15
Melanie A Gunawardene, Boris A Hoffmann, Benjamin Schaeffer, Da-Un Chung, Julia Moser, Ruken Oezge Akbulak, Mario Jularic, Christian Eickholt, Jana Nuehrich, Christian Meyer, Stephan Willems
INTRODUCTION: Comparative data of early recurrence rates of atrial fibrillation (ERAF) following second-generation cryoballoon (CB-G2) and radiofrequency current (RFC) ablation for pulmonary vein isolation (PVI) in paroxysmal AF (PAF) are rare. We randomized PAF patients into either PVI with CB-G2 (group 1) or PVI with a combined RFC-approach applying contact force (CF) with the endpoint of unexcitability (group 2) to investigate ERAF. METHODS: In group 1 (n = 30), CB-G2-PVI was performed...
October 14, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27683062/efficacy-and-safety-of-the-second-generation-cryoballoons-versus-radiofrequency-ablation-for-the-treatment-of-paroxysmal-atrial-fibrillation-a-systematic-review-and-meta-analysis
#16
REVIEW
Jingbo Jiang, Jinyi Li, Guoqiang Zhong, Junjun Jiang
PURPOSE: Currently, radiofrequency (RF) and cryoballoon are the most commonly used ablation technologies for atrial fibrillation (AF). We performed a meta-analysis to assess the efficacy and safety of the second-generation cryoballoons (CB-2) compared with RF for paroxysmal atrial fibrillation (PAF) ablation. METHODS: The PubMed, Cochrane Library, and Embase databases were searched and qualified studies were identified. The primary clinical outcome was the recurrence rate of atrial tachyarrhythmia (AT), and the secondary clinical outcomes were procedure time, fluoroscopy time, and the complications that followed...
January 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/27569722/characteristics-of-cavotricuspid-isthmus-ablation-for-atrial-flutter-guided-by-novel-parameters-using-a-contact-force-catheter
#17
Paul A Gould, Cameron Booth, Kieran Dauber, Kevin Ng, Andrew Claughton, Gerald C Kaye
INTRODUCTION: This study sought to investigate specific contact force (CF) parameters to guide cavotricuspid isthmus (CTI) ablation and compare the outcome with a historical control cohort. METHODS AND RESULTS: Patients (30) undergoing CTI ablation were enrolled prospectively in the Study cohort and compared with a retrospective Control cohort of 30 patients. Ablation in the Study cohort was performed using CF parameters >10 g and <40 g and a Force Time Integral (FTI) of 800 ± 10 g...
December 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27545306/contact-force-catheters-efficacy-versus-safety-case-report-of-2-atrioesophageal-fistulae
#18
Edouard Gitenay, Gilles Edouard O' Hara, Jean-François Sarrazin, Isabelle Nault, François Philippon, Marie Sadron Blaye-Felice, Jamal Laaouaj, Jean Champagne
Contact-force (CF) catheters appear to be more effective compared to standard ablation catheters for complex radiofrequency ablation including atrial fibrillation (AF) ablation when optimal CF >10 g is achieved. Some have suggested that this technology could also improve procedural safety. We report 2 cases of atrioesophageal fistulae (AEF), a rare but catastrophic complication of AF ablation. These are to our knowledge the first cases of AEF described after using CF catheters.
December 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27540039/incidence-of-asymptomatic-oesophageal-lesions-after-atrial-fibrillation-ablation-using-an-oesophageal-temperature-probe-with-insulated-thermocouples-a-comparative-controlled-study
#19
Philipp Halbfass, Patrick Müller, Karin Nentwich, Joachim Krug, Markus Roos, Karsten Hamm, Sebastian Barth, Attila Szöllösi, Andreas Mügge, Bernhard Schieffer, Thomas Deneke
AIMS: Oesophageal probes to monitor luminal oesophageal temperature (LET) during atrial fibrillation (AF) catheter ablation have been proposed, but their effects remain unclear. Aim of this study is to evaluate the effects of an oesophageal temperature probe with insulated thermocouples. METHODS AND RESULTS: Patients with symptomatic, drug-refractory paroxysmal or persistent AF who underwent left atrial radiofrequency (RF) catheter ablation were prospectively enrolled...
August 18, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27523463/deglutition-induced-atrial-tachycardia-localised-with-contact-force-guided-activation-mapping
#20
Alex J A McLellan, Matthew G D Bates, Shane D F Young, Paul B Sparks
Deglutition-induced atrial tachycardia is a rare arrhythmia with a poor response to medical therapy. Electrophysiological study is challenging due to the dependence of induction on swallowing. We present a novel approach to management of deglutition-induced atrial tachycardia arising from right superior pulmonary vein. Use of minimal conscious sedation and repeated swallow challenge inductions, together with contact force-guided mapping were key determinants of success. We review published cases, discussing potential mechanisms including oesophageal distension and neural reflexes...
November 2016: Heart, Lung & Circulation
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