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Atrial fibrillation and cryoablation

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https://www.readbyqxmd.com/read/27909473/cryoablation-for-the-treatment-of-drug-refractory-symptomatic-atrial-fibrillation-a-regional-medical-center-experience
#1
Robert Tonks Md, Hiba-Tul-Kareem Sayed Md, Ashley Adams Ba, William T Smith Md Facc
INTRODUCTION: PVI is an effective, guideline-based treatment for drug refractory symptomatic AF. Balloon cryoablation has been shown to be a safe and effective method for PVI. In the STOP-AF trial, data was produced from practitioners performing PVI with significant experience at high volume centers. This study evaluates the effectiveness and safety of treating symptomatic, drug refractory AF with PVI via cryoablation after implementation in a regional medical center. METHOD: This represents a retrospective analysis of outcomes after cryoablation treatment for AF in 71 patients over 354...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27907904/a-new-cryoenergy-for-ventricular-tachycardia-ablation-a-proof-of-concept-study
#2
Benjamin Berte, Frédéric Sacher, Jean-Yves Wielandts, Saagar Mahida, Xavier Pillois, Rukshen Weerasooriya, Olivier Bernus, Pierre Jaïs
INTRODUCTION: Lack of transmural lesion formation during radiofrequency (RF) ablation for ventricular tachycardia (VT) is an important determinant of arrhythmia recurrence. The aim of this proof-of-concept study was to evaluate safety and efficacy of a new and more powerful cryoablation system for ventricular ablation. METHODS AND RESULTS: Five healthy female sheep (59 ± 6 kg) underwent a surgical sternotomy for epicardial and endocardial access [endocardial access via right atrial appendage and left ventricular (LV) apex]...
October 25, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27894773/cryoablation-for-atrial-fibrillation-a-useful-technique-beyond-paroxysmal-forms-of-arrhythmia
#3
Serge Boveda
No abstract text is available yet for this article.
November 25, 2016: Revista Española de Cardiología
https://www.readbyqxmd.com/read/27851566/1932-life-threatening-massive-hemoptysis-after-cryoablation-for-atrial-fibrillation
#4
Vivek Jayaschandran, Amy Mertens, Bhavinkumar Dalal, Vishal Patel
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27832044/early-results-of-the-modified-right-atrial-lesion-set-for-the-cox-cryomaze-procedure
#5
Faisal Habib Cheema, Muhammad Amir Younus, Osama T Siddiqui, Muhammad Jabran Younus, Muhammad Arif Mahmood, Mohammad Bin Pervez, Harold G Roberts
OBJECTIVE: The standard right atrial lesion (RAL) set, as originally outlined in the Cox-Maze III procedure, can be technically challenging when using a cryoprobe to create the lesions. We report our initial experience with an alternative set of RALs for the surgical treatment of atrial fibrillation (AF). METHODS: Between September 2011 and January 2015, a total of 112 patients underwent a CryoMaze procedure with biatrial lesions using argon-based cryoablation (cryoprobe temperature, -160°C)...
September 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27784660/cryoablation-of-atrial-fibrillation
#6
REVIEW
Florian Hintringer
BACKGROUND: Atrial fibrillation (AF) affects 1-2% of the population, and its prevalence is estimated to at least double in the next 50 years as the population ages. AREAS OF AGREEMENT: AF results in impaired quality of life and even increased mortality. Drugs frequently fail to stabilize sinus rhythm. AREAS OF CONTROVERSY: Catheter ablation is a valuable treatment alternative, even as a first-line therapy in selected cases. However, catheter ablation of AF is challenging, even for experienced operators...
October 26, 2016: British Medical Bulletin
https://www.readbyqxmd.com/read/27784185/predictors-of-complications-after-percutaneous-image-guided-renal-cryoablation-for-t1a-renal-cortical-neoplasms
#7
Zhamshid Okhunov, Daniel M Moreira, Michael Del Junco, Garen Abedi, Igor Lobko, Kamaljot Kaler, Nobel Dang Nguyen, Ramy F Youssef, Ed Uchio, Louis Raphael Kavoussi, Jaime Landman
PURPOSE: We determine the incidence and predictors of major complications in patients undergoing percutaneous cryoablation PCA for small renal masses. METHODS: We performed a retrospective analysis of patients undergoing PCA from 2005 to 2012. We analyzed demographic, radiographic and complications data. We defined complications as any deviation from the expected postoperative course. We determined predictors of complications. RESULTS: A total of 190 patients were included in the study...
October 26, 2016: Journal of Endourology
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
#8
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/27738068/cryoballoon-ablation-of-persistent-atrial-fibrillation-feasibility-and-safety-of-left-atrial-roof-ablation-with-generation-of-conduction-block-in-addition-to-antral-pulmonary-vein-isolation
#9
Malte Kuniss, Harald Greiß, Dmitri Pajitnev, Ersan Akkaya, Nikolas Deubner, Andreas Hain, Lars Bodammer, Alexander Berkowitsch, Gian-Battista Chierchia, Christian W Hamm, Thomas Neumann
AIMS: Although the generation of linear lesions by ablation improves success rates in patients with persistent atrial fibrillation (AF), the procedure has been considered unsuitable for cryoablation balloon catheter technologies. We developed a technique for linear ablations, using second-generation cryoballoon technology. METHODS AND RESULTS: This was a single-arm, prospective study in 76 patients with persistent AF treated consecutively at our centre. Cryoablation was performed using a 28 mm second-generation cryoballoon...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27625119/atrial-fibrillation-fire-or-ice-cryoablation-not-inferior-not-superior
#10
Jonathan M Kalman, Prashanthan Sanders
No abstract text is available yet for this article.
September 14, 2016: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/27558755/factors-influencing-diaphragmatic-compound-motor-action-potentials-during-cryoballoon-ablation-for-atrial-fibrillation
#11
Parikshit S Sharma, Santosh K Padala, J Jenkins Thompson, Sampath Gunda, Jayanthi N Koneru, Kenneth A Ellenbogen
INTRODUCTION: The diaphragmatic compound motor action potentials (CMAPs) have been used to predict and prevent phrenic nerve injury (PNI) during cryoballoon ablation of right pulmonary veins. We sought to assess factors that influence the amplitude of the surface CMAP recordings. METHODS AND RESULTS: We analyzed CMAPs from consecutive patients undergoing cryoballoon ablation for paroxysmal atrial fibrillation. CMAP recordings were obtained using electrocardiography electrodes positioned in the "modified lead I" method while stimulating the right PN, until loss of capture (ascertained by palpation and fluoroscopy of the right hemi-diaphragm)...
August 25, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27554047/relationship-between-vitamin-d-level-and-left-atrial-fibrosis-in-patients-with-lone-paroxysmal-atrial-fibrillation-undergoing-cryoballoon-based-catheter-ablation
#12
Uğur Canpolat, Kudret Aytemir, Tuncay Hazirolan, Necla Özer, Ali Oto
BACKGROUND: Left atrial (LA) fibrosis is known as the hallmark for arrhythmogenic substrate in atrial fibrillation (AF). Quantification of LA fibrosis by using delayed-enhanced magnetic resonance imaging (DE-MRI) in AF patients is a pioneering noninvasive technique. Vitamin D (vitD) negatively regulates the renin-angiotensin system, binds to vitD receptors on cardiac myocytes, and has antioxidant properties that may ameliorate the inflammation and proarrhythmic substrate formation. However, its role in LA fibrosis is unclear...
August 20, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27525722/cryoballoon-ablation-during-atrial-fibrillation-is-associated-with-faster-temperature-drop-and-lower-freezing-temperatures
#13
Giacomo Mugnai, Darragh Moran, Erwin Ströker, Diego Ruggiero, Hugo Enrique Coutino-Moreno, Ken Takarada, Valentina De Regibus, Rajin Choudhury, Saverio Iacopino, Pasquale Filannino, Vincent Umbrain, Stefan Beckers, Pedro Brugada, Carlo de Asmundis, Gian-Battista Chierchia
PURPOSE: Our aim was to analyse the temperature behaviour during second-generation cryoballoon ablation (CB-A) in patients with ongoing atrial fibrillation (AF) compared with those in sinus rhythm (SR). METHODS: Consecutive patients with drug-resistant AF who underwent pulmonary vein (PV) isolation by CB-A from April 2014 to May 2015 were analysed. The exclusion criteria were any contraindication for the procedure including the presence of an intracavitary thrombus, uncontrolled heart failure, contraindications to general anaesthesia and cardioversion to SR during the ablation procedure...
December 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/27503480/catheter-ablation-using-the-third-generation-cryoballoon-provides-an-enhanced-ability-to-assess-time-to-pulmonary-vein-isolation-facilitating-the-ablation-strategy-short-and-long-term-results-of-a-multicenter-study
#14
Arash Aryana, Marcin Kowalski, Padraig Gearoid O'Neill, Charles H Koo, Hae W Lim, Asif Khan, Robert B Hokanson, Mark R Bowers, David N Kenigsberg, Kenneth A Ellenbogen
BACKGROUND: Limited data exist on cryoablation of atrial fibrillation (Cryo-AF) using the newly available third-generation (Arctic Front Advance-Short Tip [AFA-ST]) cryoballoon. OBJECTIVE: In this multicenter study, we evaluated the safety and efficacy of Cryo-AF using the AFA-ST vs the second-generation (Arctic Front Advance [AFA]) cryoballoon. METHODS: We examined the procedural safety and efficacy and the short- and long-term clinical outcomes associated with a first-time Cryo-AF performed in 355 consecutive patients (254/355 [72%] with paroxysmal AF), using either the AFA-ST (n = 102) or the AFA (n = 253) cryoballoon catheters...
August 5, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27390961/durability-of-cryothermal-pulmonary-vein-isolation-creating-contiguous-lesions-is-necessary-for-persistent-isolation
#15
Shinsuke Miyazaki, Hiroshi Taniguchi, Hitoshi Hachiya, Hiroaki Nakamura, Takamitsu Takagi, Kenzo Hirao, Yoshito Iesaka
BACKGROUND: Electrical reconnections after pulmonary vein isolation (PVI) are common in catheter ablation. This study aimed to evaluate the impact of the ablation method on the durability of cryothermal PVI. METHODS: One hundred thirty-two consecutive paroxysmal atrial fibrillation patients undergoing cryothermal PVI were enrolled. PVI was performed with one 28-mm second-generation balloon using 3-minute freeze techniques, and touch-up lesions were created by focal cryothermal applications...
October 1, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27354860/impact-of-transesophageal-echocardiography-during-transseptal-puncture-on-atrial-fibrillation-ablation
#16
İsmail Erden, Emine Çakcak Erden, Ebru Golcuk, Tolga Aksu, Kıvanç Yalin, Tümer Erdem Güler, Kazım Serhan Özcan, Burak Turan
BACKGROUND: The aim of our study was to demonstrate the added value of routine transesophageal echocardiography (TEE) for correctly positioning the transseptal system in the fossa ovalis (FO), thus potentially preventing complications during fluoroscopy-guided transseptal puncture (TP), and for assessing the optimal puncture site within the FO according to the expected procedure type. METHODS: Ninety-one patients undergoing pulmonary vein isolation (PVI) procedures by cryoballoon technique for drug-resistant paroxysmal or persistent atrial fibrillation (AF) were prospectively included...
June 2016: Journal of Arrhythmia
https://www.readbyqxmd.com/read/27294840/cryoablation-in-persistent-atrial-fibrillation-a%C3%A2-critical-appraisal
#17
REVIEW
S Tzeis, S Pastromas, A Sikiotis, G Andrikopoulos
Ablation of atrial fibrillation is an established treatment for the management of patients with paroxysmal and persistent atrial fibrillation. The complex pathophysiology of persistent atrial fibrillation has fuelled the concept of adjunctive substrate modification on top of pulmonary vein isolation. However, recent studies have failed to demonstrate additive benefit from complex ablation approaches, thus supporting that standalone pulmonary vein isolation may prove sufficient, at least as the initial ablation strategy in persistent atrial fibrillation...
September 2016: Netherlands Heart Journal
https://www.readbyqxmd.com/read/27271554/radiofrequency-catheter-ablation-versus-balloon-cryoablation-of-atrial-fibrillation-markers-of-myocardial-damage-inflammation-and-thrombogenesis
#18
Bor Antolič, Andrej Pernat, Marta Cvijić, David Žižek, Matevž Jan, Matjaž Šinkovec
BACKGROUND: Evidence from animal and human studies suggests that cryoablation might be associated with a lesser inflammatory response and activation of coagulation compared with radiofrequency ablation. The study was aimed at comparing the effect of cryoballoon and radiofrequency catheter ablation of paroxysmal atrial fibrillation on markers of myocardial damage, inflammation, and activation of coagulation. METHODS: Forty-one patients received either cryoballoon (n = 23) or radiofrequency (n = 18) ablation of atrial fibrillation...
July 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27267554/results-from-a-multicentre-comparison-of-cryoballoon-vs-radiofrequency-ablation-for-paroxysmal-atrial-fibrillation-is-cryoablation-more-reproducible
#19
Rui Providencia, Pascal Defaye, Pier D Lambiase, Dominique Pavin, Jean-Pierre Cebron, Franck Halimi, Frédéric Anselme, Neil Srinivasan, Jean-Paul Albenque, Serge Boveda
AIM: Cryoballoon ablation (Cryoballoon) has emerged as a new alternative for the treatment of symptomatic drug-refractory atrial fibrillation (AF). Whether the results of Cryoballoon are more reproducible than those of radiofrequency (RF) ablation remains to be proved. METHODS AND RESULTS: A total of 860 consecutive patients undergoing a first ablation procedure for paroxysmal AF (467 treated with RF and 393 treated with Cryoballoon) were selected from a prospective multicentre survey of AF ablation (FrenchAF)...
June 5, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27248647/cox-maze-iv-cryoablation-and-postoperative-heart-failure-in-mitral-valve-surgery-patients
#20
Gabriella Boano, Meriam Åström Aneq, Jennie Kemppi, Farkas Vánky
OBJECTIVE: The indications for and the risk and benefit of concomitant surgical ablation for atrial fibrillation (AF) have not been fully delineated. Our aim was to survey whether the Cox-maze IV procedure is associated with postoperative heart failure (PHF) or other adverse short-term outcomes after mitral valve surgery (MVS). DESIGN: Consecutive patients with AF undergoing MVS with (n = 50) or without (n = 66) concomitant Cox-maze IV cryoablation were analysed regarding perioperative data and one-year mortality...
June 16, 2016: Scandinavian Cardiovascular Journal: SCJ
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