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Vein ablation

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https://www.readbyqxmd.com/read/28340103/diagnosis-to-ablation-time-as-a-predictor-of-success-early-choice-for-pulmonary-vein-isolation-and-long-term-outcome-in-atrial-fibrillation-results-from-the-middelheim-pvi-registry
#1
Y De Greef, B Schwagten, G B Chierchia, C de Asmundis, D Stockman, I Buysschaert
Aims: The aim of the study is to define long-term outcome of pulmonary vein isolation (PVI) in atrial fibrillation (AF) and to determine whether time window between AF diagnosis and PVI affects outcome. Methods and results: Consecutive AF patients undergoing PVI (2006-14) were followed for 5 years. Primary outcome was clinical success, defined as freedom of documented AF without anti-arrhythmic drugs respecting a 1-month blanking period. A 1000 patients were included (age 60 ± 10 years, CHA2DS2-VASc score 1 ± 1)...
March 2, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340078/image-integration-into-3-dimensional-electro-anatomical-mapping-system-facilitates-safe-ablation-of-ventricular-arrhythmias-originating-from-the-aortic-root-and-its-vicinity
#2
Mario Jularic, Ruken Özge Akbulak, Benjamin Schäffer, Julia Moser, Jana Nuehrich, Christian Meyer, Christian Eickholt, Stephan Willems, Boris A Hoffmann
Aims: During ablation in the vicinity of the coronary arteries establishing a safe distance from the catheter tip to the relevant vessels is mandatory and usually assessed by fluoroscopy alone. The aim of the study was to investigate the feasibility of an image integration module (IIM) for continuous monitoring of the distance of the ablation catheter tip to the main coronary arteries during ablation of ventricular arrhythmias (VA) originating in the sinus of valsalva (SOV) and the left ventricular summit part of which can be reached via the great cardiac vein (GCV)...
March 7, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340073/left-atrial-appendage-isolation-in-addition-to-pulmonary-vein-isolation-in-persistent-atrial-fibrillation-one-year-clinical-outcome-after-cryoballoon-based-ablation
#3
Hikmet Yorgun, Ugur Canpolat, Duygu Kocyigit, Cem Çöteli, Banu Evranos, Kudret Aytemir
Aims: In this study, we sought to evaluate the safety and efficacy of cryoballoon (CB) based empirical left atrial appendage (LAA) isolation as an adjunct to pulmonary vein isolation (PVI) compared to the PVI-only strategy in patients with persistent AF. Objectives: Clinical outcomes of catheter ablation were less beneficial for persistent atrial fibrillation (AF) than paroxysmal AF. Methods and results: A total of 100 consecutive patients with persistent AF underwent both PVI and additional LAA isolation using CB (Group II)...
March 9, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340057/long-term-outcome-of-pulmonary-vein-isolation-in-patients-with-paroxysmal-atrial-fibrillation-and-brugada-syndrome
#4
Giacomo Mugnai, Burak Hünük, Erwin Ströker, Diego Ruggiero, Hugo Enrique Coutino-Moreno, Ken Takarada, Valentina De Regibus, Rajin Choudhury, Juan Pablo Abugattas de Torres, Darragh Moran, Saverio Iacopino, Pasquale Filannino, Giulio Conte, Juan Sieira, Jan Poelaert, Stefan Beckers, Pedro Brugada, Carlo de Asmundis, Gian-Battista Chierchia
Aims: The therapeutical management of atrial fibrillation (AF) in the setting of Brugada syndrome (BS) might be challenging as many antiarrhythmic drugs (AADs) with sodium channel blocking properties might lead to to the development of ventricular arrhythmias. This study sought to evaluate the clinical outcome in a consecutive series of patients with BS having undergone pulmonary vein (PV) isolation by means of radiofrequency (RF) or cryoballoon (CB) ablation and the efficacy of catheter ablation for preventing inappropriate interventions delivered by implantable cardioverter defibrillators (ICD) on a 3-year follow up...
March 9, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340054/outcomes-of-atrial-arrhythmia-radiofrequency-catheter-ablation-in-patients-with-ebstein-s-anomaly
#5
Abdallah Hassan, Nicholas Y Tan, Htin Aung, Heidi M Connolly, David O Hodge, Emily R Vargas, Bryan C Cannon, Douglas L Packer, Samuel J Asirvatham, Christopher J McLeod
Aims: Atrial arrhythmias are common in patients with Ebstein's anomaly (EA) despite cardiac surgical repair and concomitant Maze procedures. We aimed to evaluate the outcome of radiofrequency catheter ablation in this group of patients. Methods and results: All patients with EA and atrial arrhythmias who underwent catheter ablation for atrial arrhythmias between 1/1999 and 1/2016 were included. Atrial arrhythmia recurrence was identified as the primary outcome; secondary outcomes included repeat ablation, need for antiarrhythmic medications after ablation, and death...
February 27, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339822/can-we-say-anything-about-ganglionated-plexus-modification-during-radiofrequency-pulmonary-vein-isolation-and-post-ablation-arrhythmia-recurrence-at-this-time
#6
Tolga Aksu
No abstract text is available yet for this article.
February 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339546/multicentre-safety-of-adding-focal-impulse-and-rotor-modulation-firm-to-conventional-ablation-for-atrial-fibrillation
#7
David E Krummen, Tina Baykaner, Amir A Schricker, Christopher A B Kowalewski, Vijay Swarup, John M Miller, Gery F Tomassoni, Shirley Park, Mohan N Viswanathan, Paul J Wang, Sanjiv M Narayan
Aims: Focal Impulse and Rotor Modulation (FIRM) uses 64-electrode basket catheters to identify atrial fibrillation (AF)-sustaining sites for ablation, with promising results in many studies. Accordingly, new basket designs are being tested by several groups. We set out to determine the procedural safety of adding basket mapping and map-guided ablation to conventional pulmonary vein isolation (PVI). Methods and results: We collected 30 day procedural safety data in five US centres for consecutive patients undergoing FIRM plus PVI (FIRM-PVI) compared with contemporaneous controls undergoing PVI without FIRM...
December 22, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339545/left-atrial-anatomy-atrial-fibrillation-burden-and-p-wave-duration-relationships-and-predictors-for-single-procedure-success-after-pulmonary-vein-isolation
#8
Sven Knecht, Maurice Pradella, Tobias Reichlin, Aline Mühl, Matthias Bossard, Bram Stieltjes, David Conen, Jens Bremerich, Stefan Osswald, Michael Kühne, Christian Sticherling
Aims: Atrial fibrillation (AF) is associated with changes in left atrial (LA) volume, but the relationship between LA size, AF burden, and electrical conduction behaviour is still uncertain. The aim of this study was to quantify the association and impact of these parameters on the single-procedure outcome after circumferential antral ablation for pulmonary vein isolation. Methods and results: Left atrial assessment was performed in 129 consecutive patients using pre-procedural imaging in three dimensions (sphericity, indexed volume), two dimensions (diameters), and from echocardiography in one dimension (long axis)...
December 22, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28329210/right-atrium-positioning-for-exposure-of-right-pulmonary-veins-during-off-pump-atrial-fibrillation-ablation
#9
Grzegorz Suwalski, Robert Emery, Jakub Mróz, Kamil Kaczejko, Leszek Gryszko, Andrzej Cwetsch, Andrzej Skrobowski
OBJECTIVES: Concomitant surgical ablation of atrial fibrillation (AF) is recommended for patients undergoing off-pump coronary revascularization in the presence of this arrhythmia. Achievement of optimal visualization of pulmonary veins while maintaining stable haemodynamic conditions is crucial for proper completion of the ablation procedure. This study evaluates the safety and feasibility of right atrial positioning using a suction-based cardiac positioner as opposed to compressive manoeuvres for exposure during off-pump surgical ablation for AF...
March 3, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28322592/intravascular-pulmonary-venous-ultrasound-imaging-for-catheter-ablation-of-atrial-fibrillation
#10
Gabriel Cismaru, Serban Schiau, Lucian Muresan, Radu Rosu, Mihai Puiu, Dana Pop, Dumitru Zdrenghea
Atrial fibrillation is the most common cardiac arrhythmia. The development of electroanatomical mapping is an increase demand for advanced intracardiac imaging techniques of the left atrium and pulmonary veins. IVUS can demonstrate quantitative changes like lumen and wall thickness as well as qualitative changes of the pulmonary or coronary arteries wall. IVUS could also provide relevant real time imaging of the atrial and pulmonary venous wall during catheter ablation. Areas covered: The Medline and Embase databases were searched for preclinical and clinical studies of IVUS in patients with ablation of atrial fibrillation or left atrial arrhythmias...
March 21, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28321025/one-year-success-rate-of-pulmonary-vein-isolation-using-a-novel-irrigated-multipolar-mapping-and-ablation-catheter-with-reduced-power-settings
#11
Dong-In Shin, Jan-Erik Guelker, Christian Blockhaus, Jan Schmidt, Muhammed Kurt, Lukas Clasen, Patrick Mueller, Lars Bansemir, Christoph Brinkmeyer, Alexander Bufe, Malte Kelm, Hisaki Makimoto
The use of a novel irrigated multipolar ablation and mapping catheter for pulmonary vein isolation in patients with atrial fibrillation (AF) has demonstrated reasonable acute success rates and short procedure times, however, long-term outcome data are limited. The aim of this study was to analyze the long-term efficacy of this novel ablation system utilizing a reduced power setting for safety purposes.A total of 89 patients with paroxysmal (63 of 89 patients; 71%) or persistent AF underwent PVI with a reduced power setting of maximum 20 Watts (W) unipolar radiofrequency energy and 30 seconds in duration...
March 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28320316/clinical-outcomes-of-conventional-surgery-versus-mitraclip%C3%A2-therapy-for-moderate-to-severe-symptomatic-mitral-valve-regurgitation-in-the-elderly-population-an-institutional-experience
#12
Anthony Alozie, Liliya Paranskaya, Bernd Westphal, Alexander Kaminski, Mohammad Sherif, Magnus Sindt, Stephan Kische, Jochen Schubert, Doreen Diedrich, Hüseyin Ince, Gustav Steinhoff, Alper Öner
BACKGROUND: The aim of this study was to compare treatment of moderate to severe symptomatic mitral regurgitation (MR) with either conventional surgery or the mitral valve edge-to-edge device (MitraClip®) in very elderly patients. The newly introduced MitraClip device has demonstrated promising acute results in treating this patient cohort. Also noteworthy is the fact that patients who otherwise would have been denied surgery are increasingly referred for treatment with the MitraClip device...
March 20, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28318889/non-invasive-liver-ablation-using-histotripsy-preclinical-safety-study-in-an-in%C3%A2-vivo-porcine-model
#13
Eli Vlaisavljevich, Gabe Owens, Jonathan Lundt, Dejan Teofilovic, Kimberly Ives, Alexander Duryea, Jim Bertolina, Theodore H Welling, Zhen Xu
This study investigates the safety profile for use of histotripsy, a non-invasive ultrasonic ablation method currently being developed for the treatment of liver cancer, for liver ablation in an in vivo porcine model. Histotripsy treatments were applied to the liver and hepatic veins of 22 porcine subjects, with half of the subjects receiving systemic heparinization. Vital signs (heart rate, blood pressure, temperature, electrocardiogram and SpO2) were monitored throughout the procedure and for 1 h post-treatment...
March 16, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28316983/endovenous-laser-ablation-of-varicose-veins-preserves-biological-properties-of-vascular-endothelium-and-modulates-proinflammatory-agent-profile-more-favorably-than-classic-vein-stripping
#14
Paweł Uruski, Krzysztof Aniukiewicz, Justyna Mikuła-Pietrasik, Patrycja Sosińska, Andrzej Tykarski, Krzysztof Książek, Zbigniew Krasiński
Here we compared effect of serum from varicose patients undergoing endovenous laser ablation (EVLA) and classic vein stripping (CVS) on biological properties of endothelial cells and on the local and systemic profiles of proinflammatory agents. Results showed that serum from EVLA patients improved proliferation and reduced senescence and oxidative stress in the endothelial cells, as compared with the serum from CVS patients. These effects were related to a suppressed activity of TGF-β1, the level of which in the serum from the EVLA patients was decreased...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28316225/-the-clinical-impact-of-artery-first-approach-combined-with-vascular-resection-and-reconstruction-in-the-treatment-of-pancreatic-head-carcinoma
#15
J L Huang, W G Li, F Z Chen, Z J Su, F M Li, B Liu
Objective: To evaluate the application of artery first, combined vascular resection and reconstruction in the treatment of pancreatic head carcinoma. Methods: The clinical data of 13 patients with pancreatic head cancer were retrospectively analyzed from February 2014 to March 2016 in the Affiliated Hospital of Xiamen University. Preoperative computed tomography of high resolution layer or magnetic resonance imaging examination demonstrated pancreatic head carcinoma, as well as close adhesion, stenosis, compression or displacement of superior mesenteric vein or portal vein wall...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28316148/ablation-of-complex-fractionated-electrograms-with-or-without-additional-linear-lesions-for-persistent-atrial-fibrillation-the-adline-trial
#16
Sonia Ammar-Busch, Felix Bourier, Tilko Reents, Verena Semmler, Marta Telishevska, Susanne Kathan, Monika Hofmann, Gabriele Hessling, Isabel Deisenhofer
BACKGROUND: For persistent atrial fibrillation (AF) ablation, different strategies including complex fractionated atrial electrograms (CFAE) ablation and linear lesions (LL) have been used in addition to pulmonary vein isolation (PVI). However, it is still a matter of debate if extended substrate modification improves long-term outcome. The aim of this study was to determine the benefit of LL in addition to PVI and CFAE ablation regarding freedom from arrhythmia recurrence in patients with persistent AF...
March 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28315135/repeat-procedures-using-the-second-generation-cryoballoon-for-recurrence-of-atrial-fibrillation-after-initial-ablation-with-conventional-radiofrequency
#17
Valentina De Regibus, Saverio Iacopino, Juan-Pablo Abugattas, Giacomo Mugnai, Darragh Moran, Erwin Ströker, Hugo-Enrique Coutino, Ken Takarada, Rajin Choudhury, Gaetano Paparella, Vincent Umbrain, Pedro Brugada, Carlo de Asmundis, Gian-Battista Chierchia
PURPOSE: Pulmonary vein isolation is now widely accepted for the treatment of symptomatic atrial fibrillation refractory to antiarrhythmic drugs. However, multiple procedures are often required to significantly reduce atrial fibrillation (AF) recurrence. In the present study, we analyzed the acute results and the midterm clinical outcome of a second-generation cryoballoon ablation (CB-A) performed during repeat procedures for recurrence of AF after an initial procedure performed with conventional radiofrequency (RF)...
March 17, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28302592/spectral-detector-ct-for-cardiovascular-applications
#18
Prabhakar Rajiah, Suhny Abbara, Sandra Simon Halliburton
Spectral detector computed tomography (SDCT) is a novel technology that uses two layers of detectors to simultaneously collect low and high energy data. Spectral data is used to generate conventional polyenergetic images as well as dedicated spectral images including virtual monoenergetic and material composition (iodine-only, virtual unenhanced, effective atomic number) images. This paper provides an overview of SDCT technology and a description of some spectral image types. The potential utility of SDCT for cardiovascular imaging and the impact of this new technology on radiation and contrast dose are discussed through presentation of initial patient studies performed on a SDCT scanner...
March 17, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28301685/conventional-versus-3d-echocardiography-to-predict-arrhythmia-recurrence-after-atrial-fibrillation-ablation
#19
Matthias Bossard, Sven Knecht, Stefanie Aeschbacher, Ronny R Buechel, Thomas Hochgruber, Andreas J Zimmermann, Arnheid Kessel-Schaefer, Frank-Peter Stephan, Gian Völlmin, Maurice Pradella, Christian Sticherling, Stefan Osswald, Beat A Kaufmann, David Conen, Michael Kühne
BACKGROUND: Arrhythmia recurrence after atrial fibrillation (AF) ablation remains high and requires repeat interventions in a substantial number of patients. We assessed the value of conventional and 3D-echocardiography to predict AF recurrence. METHODS AND RESULTS: Consecutive patients undergoing AF ablation by means of pulmonary vein isolation were included in a prospective registry. Echocardiograms were obtained prior to the ablation procedure, and analyzed offline in a standardized manner, including 3D-left atrial (LA) volumetry and determination of LA function and sphericity...
March 16, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28299645/new-concepts-in-embolotherapy-of-hcc
#20
REVIEW
F Pesapane, N Nezami, F Patella, J F Geschwind
Hepatocellular carcinoma (HCC) is the second most common cause of cancer-related deaths worldwide with rapidly growing incidence rates in the USA and Europe. Despite improving surveillance programs, most patients are diagnosed at intermediate to advanced stages and are no longer amenable to curative therapies, such as ablation, surgical resection and liver transplantation. For such patients, catheter-based image-guided embolotherapies such as transarterial chemoembolization (TACE) represent the standard of care and mainstay therapy, as recommended and endorsed by a variety of national guidelines and staging systems...
April 2017: Medical Oncology
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