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cryoablation atrial fibrillation

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https://www.readbyqxmd.com/read/29667208/the-use-of-cardiac-ct-alone-to-exclude-left-atrial-thrombus-before-atrial-fibrillation-ablation-efficiency-safety-and-cost-analysis
#1
Wassim Mosleh, Ali Sheikh, Zaid Said, Mohamed A Abdel-Aal, Siri Gadde, Tanvi Shah, Michael F Wilson, Hiroko Beck, Chee Kim, Umesh C Sharma
BACKGROUND: Atrial fibrillation (AF) is a growing financial burden on the healthcare system. Cardiac computed tomographic angiography (CCTA) is needed for pulmonary vein mapping before AF ablation (AFA). CCTA has shown to be an alternative to transesophageal echocardiogram (TEE) to rule-out left atrial appendage thrombus (LAAT) pre-AFA. We aim to examine the safety, cost-effectiveness, and time-efficiency of utilizing CCTA alone to rule out LAAT before AFA. METHODS: We prospectively screened patients with paroxysmal AF undergoing cryoablation...
April 17, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29664429/esophageal-ulcers-secondary-to-cryoenergy-after-pulmonary-vein-ablation-using-the-second-generation-balloon
#2
Luis Álvarez-Acosta, Alejandro Quijada-Fumero, Raquel Pimienta-González, Julio S Hernández-Afonso
Pulmonary vein isolation is an effective treatment for patients with symptomatic paroxysmal atrial fibrillation. Cryoablation balloon therapy has been developed as an alternative. Cryoablation complications have primarily been related to phrenic nerve palsy, vascular complications, stroke, and others of lesser incidence. Esophageal lesions are rare and they are not yet completely understood.
April 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29656325/dosing-of-the-second-generation-cryoballoon-using-acute-time-to-pulmonary-vein-isolation-as-an-indicator-of-durable-ablation-in-a-canine-model
#3
Wilber Su, Nicolas Coulombe, Nicole Kirchhof, Erin Grassl, Dan Wittenberger
BACKGROUND: Rigid time-based dosing protocol(s) currently used in the clinic for cryoballoon ablation of atrial fibrillation may be inadequate to guide the circumferential and transmural cryothermal energy transfer across the pulmonary vein (PV) and may result in injury to collateral tissues or electrical gaps between the PV and left atrium (LA). OBJECTIVE: A physiologic endpoint (e.g., acute time-to-PV isolation a.k.a. time-to-effect; TTE) may be effective in the determination of a transmural lesion formation and may allow for individualized ablation dosing across each PV...
April 14, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29629552/combined-cryo-maze-procedure-and-mitral-valve-repair-through-a-ministernotomy
#4
Vishal Shah, Oleg Orlov, Cinthia Orlov, Manabu Takebe, Matthew Thomas, Konstadinos Plestis
Atrial fibrillation is associated with increased morbidity and mortality in patients undergoing mitral valve surgery. There is a growing consensus that patients with preexisting atrial fibrillation should undergo surgical ablation at the time of mitral valve surgery. Novel surgical ablation techniques, including cryoablation, have been developed to facilitate concurrent minimally invasive procedures. This video tutorial describes a combined cryo-maze procedure and mitral valve repair through an upper ministernotomy in a patient with long-standing persistent atrial fibrillation and severe mitral regurgitation...
March 5, 2018: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/29601309/anatomical-and-procedural-predictors-of-pulmonary-vein-stenosis-in-the-setting-of-second-generation-cryoballoon-ablation
#5
Hugo-Enrique Coutiño, Ken Takarada, Juan Sieira, Juan-Pablo Abugattas, Francesca Salghetti, Valentina De Regibus, Erwin Ströker, Pedro Brugada, Saverio Iacopino, Carlo de Asmundis, Gian-Battista Chierchia
AIMS: Pulmonary vein stenosis (PVS) is a well recognized complication as a consequence of pulmonary vein isolation. In the current study, we sought to analyze potential anatomical and intraprocedural predictors of PVS during second-generation cryoballoon ablation, particularly focusing on the impact of freeze duration and number of cryoapplications. METHODS: Fifty-four patients who underwent cryoballoon ablation for atrial fibrillation were included retrospectively in this study...
March 29, 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29590383/the-cox-maze-iv-procedure-in-its-second-decade-still-the-gold-standard
#6
Chawannuch Ruaengsri, Matthew R Schill, Ali J Khiabani, Richard B Schuessler, Spencer J Melby, Ralph J Damiano
Atrial fibrillation (AF) is the most common cardiac arrhythmia and the treatment options include medical treatment and catheter-based or surgical interventions. AF is a major cause of stroke, and its prevalence is increasing. The surgical treatment of AF has been revolutionized over the past 2 decades through surgical innovation and improvements in endoscopic imaging, ablation technology and surgical instrumentation. The Cox-maze (CM) procedure, which was developed by James Cox and introduced clinically in 1987, is a procedure in which multiple incisions are created in both the left and the right atria to eliminate AF while allowing the sinus impulse to reach the atrioventricular node...
April 1, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29551538/sutureless-aortic-valve-replacement-with-concomitant-valvular-surgery
#7
Cagdas Baran, Mustafa Serkan Durdu, Fatih Gumus, Mehmet Cakici, Mustafa Bahadir Inan, Mustafa Sirlak, Ahmet Ruchan Akar
OBJECTIVES: Sutureless aortic valve replacement (SU-AVR) is an alternative technique to standard aortic valve replacement. We evaluated our experience with the Perceval SU-AVR with concomitant mitral valve surgery, with or without tricuspid valve surgery, and aimed to discuss the technical considerations. METHODS: From January 2013 through June 2016, 30 patients with concomitant severe mitral valve disease, with or without tricuspid valve disease, underwent SU-AVR with the Perceval prosthesis in a single center...
February 21, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29534678/cryoballoon-ablation-for-paroxysmal-atrial-fibrillation-in-a-case-of-persistent-left-superior-vena-cava
#8
Shiwei Huang, Binglin Pan, He Zou, Wei Lin
BACKGROUND: Atrial fibrillation (AF) usually originates from pulmonary veins (PVs) but can also be caused by pulmonary veins outside, such as the coronary sinus (CS), the superior vena cava (SVC), and the ligament of Marshall. CASE PRESENTATION: A 69-year-old male with a history of palpitations for 10 years was referred to our institute because of its recurrence for half a day. A dynamic electrocardiogram revealed sinus rhythm (SR) and paroxysmal AF. Echocardiography demonstrated normal cardiac structure, and physical examination results were unremarkable...
March 13, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29500095/pulmonary-vein-orientation-is-independently-associated-with-outcomes-following-cryoballoon-based-atrial-fibrillation-ablation
#9
Duygu Kocyigit, Muhammed Ulvi Yalcin, Kadri Murat Gurses, Selin Ardali, Gamze Turk, Ugur Canpolat, Banu Evranos, Hikmet Yorgun, Tuncay Hazirolan, Kudret Aytemir
AIMS: Several studies have investigated the influence of pulmonary vein(PV) anatomy on outcomes of atrial fibrillation (AF) ablation. We aimed to evaluate the relationship between PV orientation and AF-free survival following cryoablation. METHODS: 160 patients scheduled for cryoablation between September 2012-March 2014 were included. Patients underwent a pre-procedural cardiac CT scan with retrospective ECG gating. PV orientation was assessed according to the position of the PV orifice relative to the sagittal plane with reference to coronal and horizontal planes...
February 19, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29487676/complications-of-atrial-fibrillation-cryoablation
#10
REVIEW
Ugur Canpolat, Duygu Kocyigit, Kudret Aytemir
Catheter ablation either by using radiofrequency or cryo energy in symptomatic patients with atrial fibrillation (AF) has shown to be effective as compared to anti-arrhythmic drugs. However, all the techniques used during AF ablation are not free of complication. There are several well-known peri-procedural complications in which operators should be informed of the possible risks, cautious during the procedure and able to manage them when occurred. Herein, we aimed to review possible complications of AF cryoablation...
December 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29432399/cryoballoon-vs-radiofrequency-contact-force-ablation-for-paroxysmal-atrial-fibrillation-a-propensity-score-analysis
#11
Mario Matta, Matteo Anselmino, Federico Ferraris, Marco Scaglione, Fiorenzo Gaita
BACKGROUND: Radiofrequency and cryoballoon pulmonary vein isolation are common approaches for paroxysmal atrial fibrillation treatment, showing similar results in recent multicenter studies, including heterogeneous tools and protocols. The aim of this study is to compare prospectively in a single, high-volume center the outcome of paroxysmal atrial fibrillation ablation performed specifically by second-generation cryoballoon or contact force radiofrequency ablation. METHODS: Consecutive patients scheduled for paroxysmal atrial fibrillation transcatheter ablation have been included and prospectively followed up...
April 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29289258/identification-and-ablation-of-dormant-conduction-in-atrial-fibrillation-using-adenosine
#12
Faraz Khan Luni, Abdur Rahman Khan, Hemindermeet Singh, Haris Riaz, Sonia Ali Malik, Owais Khawaja, Talha Farid, Jennifer Cummings, Mohammed Taleb
BACKGROUND: Ablation is used for treatment of atrial fibrillation (AF) but recurrence is common. Dormant conduction is hypothesized to be responsible for these recurrences, and the role of adenosine in identification and ablation of these pathways is controversial with conflicting results on AF recurrence. MATERIALS AND METHODS: We conducted a meta-analysis for studies evaluating AF ablation and adenosine use. Included in the meta-analysis were human studies that compared ablation using adenosine or adenosine triphosphate (ATP) and reported freedom from AF in patients beyond a minimum follow-up of 6 months...
January 2018: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29250288/thermal-field-in-cryoablation-procedures-for-pulmonary-veins-isolation-importance-of-esophageal-temperature-monitoring
#13
Antonio Fasano, Luca Anfuso, Giuseppe Arena, Claudio Pandozi
Background: Cryoablation procedures for pulmonary veins isolation have proved to be a successful treatment of atrial fibrillation, but exposure of surrounding organs to excessively low temperatures is potentially dangerous. Hence the importance of monitoring esophageal temperature and at the same time predicting the thermal field induced by the procedure, so to provide clinicians with a valuable tool to take critical decisions. Methods and Results: We formulate a mathematical model for computing the temperature in the relevant region and we use numerical simulations to interpret recorded clinical data...
April 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29250269/bonus-vs-no-bonus-cryoballoon-isolation-for-paroxysmal-atrial-fibrillation-ablation
#14
Aysenur Ekizler, Dursun Aras, Serkan Cay, Ozcan Ozeke, Firat Ozcan, Serkan Topaloglu
Aims: To evaluate the benefit of Bonus freeze using second generation cryoballoon after pulmonary vein isolation (PVI) for paroxysmal atrial fibrillation (PAF). Methods: A bonus freeze is performed after proven pulmonary vein isolation (PVI) for cryoballoon ablation of paroxysmal atrial fibrillation (PAF) as standard. In the current study, no additional freeze (No Bonus) after PVI was compared with additional freeze (Bonus) after PVI using second generation cryoballoon...
February 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29250247/coronary-air-embolism-during-cryoablation-of-atrial-fibrillation-a-catastrophic-complication-and-its-management
#15
Serkan Cay, Ozcan Ozeke, Firat Ozcan, Serkan Topaloglu, Dursun Aras
Various acute complications and their management during ablation of atrial fibrillation have been described. In the current report, coronary air embolism, its acute adverse effects and management of the problem were presented in a patient underwent cryoballoon ablation of atrial fibrillation.
October 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29250235/a-simplified-trans-septal-puncture-technique-using-a-needle-free-approach-for-cryoablation-of-atrial-fibrillation
#16
Shohreh Honarbakhsh, Ben O'Brien, Richard J Schilling
Background: Trans-septal puncture (TSP) is routinely performed during treatment of atrial fibrillation (AF) and other electrophysiology procedures. The purpose of this retrospective observational study was the analysis of a novel needle free technique employed to gain access to the left atrium (LA). Methods: The SafeSept Needle Free guidewire was delivered, using no needle, to the interatrial septum via a standard cryoablation sheath and dilator under transoesophageal guidance...
August 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29247032/thromboembolic-risks-of-the-procedural-process-in-second-generation-cryoballoon-ablation-procedures-analysis-from-real-time-transcranial-doppler-monitoring
#17
Shinsuke Miyazaki, Tomonori Watanabe, Takatsugu Kajiyama, Jin Iwasawa, Sadamitsu Ichijo, Hiroaki Nakamura, Hiroshi Taniguchi, Kenzo Hirao, Yoshito Iesaka
BACKGROUND: Atrial fibrillation ablation is associated with substantial risks of silent cerebral events (SCEs) or silent cerebral lesions. We investigated which procedural processes during cryoballoon procedures carried a risk. METHODS AND RESULTS: Forty paroxysmal atrial fibrillation patients underwent pulmonary vein isolation using second-generation cryoballoons with single 28-mm balloon 3-minute freeze techniques. Microembolic signals (MESs) were monitored by transcranial Doppler throughout all procedures...
December 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29211301/outcome-in-patients-with-left-common-pulmonary-vein-after-cryoablation-with-second-generation-cryoballoon
#18
Thomas Beiert, Pia C Lodde, Lutz P T Linneborn, Jessica Werner, Lisa Prinz, Florian Stöckigt, Markus Linhart, Lars Lickfett, Georg Nickenig, Jan W Schrickel, René P Andrié
BACKGROUND: Pulmonary vein isolation (PVI) has become a widely accepted therapy in patients suffering from symptomatic atrial fibrillation (AF). HYPOTHESIS: AF-free survival differs in patients with left common pulmonary vein (LCPV) after PVI with second-generation cryoballoon. METHODS: We included patients scheduled for first PVI for paroxysmal or persistent AF. Symptomatic and/or documented arrhythmia episodes (>30 seconds) were defined as AF recurrence, excluding a 3-month blanking period...
January 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29146378/association-of-p-wave-duration-index-with-atrial-fibrillation-recurrence-after-cryoballoon-catheter-ablation
#19
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/29126892/atrial-fibrillation-ablation-beyond-pulmonary-veins-the-role-of-left-atrial-appendage
#20
REVIEW
Jorge Romero, Andrea Natale, Luigi Di Biase
The role of pulmonary vein isolation in patients with non-paroxysmal atrial fibrillation (AF) is only modest. Several studies have demonstrated the role of the left atrial appendage (LAA) in initiating and maintaining of this arrhythmia. We review in this article the incremental benefit in free-arrhythmia recurrence of LAA electrical isolation in patients undergoing procedures for persistent AF or long standing persistent AF either using radiofrequency ablation, cryoablation or Lariat device implantation. Likewise, acute complications, anticoagulation and the risk of ischemic stroke after LAA electrical isolation (LAAEI) are analyzed...
November 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
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