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https://www.readbyqxmd.com/read/29044787/intracardiac-ablation-for-atrioventricular-nodal-reentry-tachycardia-using-a-6%C3%A2-mm-distal-electrode-cryoablation-catheter-prospective-multicenter-north-american-study-icy-avnrt-study
#1
Peter Wells, Marc Dubuc, George J Klein, Dan Dan, Jean-Francois Roux, Evan Lockwood, Marcio Sturmer, David Dunbar, Paul Novak, Arun Rao, Brett J Peterson, Fred Kueffer, Kenneth A Ellenbogen
INTRODUCTION: Radiofrequency (RF) ablation is effective for slow pathway ablation, but carries a risk of inadvertent AV block requiring permanent pacing. By comparison, cryoablation with a 4 mm distal electrode catheter has not been reported to cause permanent AV block but has been shown to be less effective than RF ablation. We sought to define the safety and efficacy of a 6 mm distal electrode cryoablation catheter for slow pathway ablation in patients with atrioventricular nodal reentry tachycardia (AVNRT)...
October 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29043080/recent-advances-in-rhythm-control-for-atrial-fibrillation
#2
REVIEW
Richard Bond, Brian Olshansky, Paulus Kirchhof
Atrial fibrillation (AF) remains a difficult management problem. The restoration and maintenance of sinus rhythm-rhythm control therapy-can markedly improve symptoms and haemodynamics for patients who have paroxysmal or persistent AF, but some patients fare well with rate control alone. Sinus rhythm can be achieved with anti-arrhythmic drugs or electrical cardioversion, but the maintenance of sinus rhythm without recurrence is more challenging. Catheter ablation of the AF triggers is more effective than anti-arrhythmic drugs at maintaining sinus rhythm...
2017: F1000Research
https://www.readbyqxmd.com/read/29042169/percutaneous-cryoablation-of-renal-cell-carcinoma-with-sinus-vein-involvement-based-on-preprocedural-imaging
#3
Thomas D Atwell, A Nicholas Kurup, Stephen A Boorjian, John J Schmitz, R Houston Thompson, Bradley C Leibovich, Grant D Schmit
PURPOSE: To assess feasibility, safety, and oncologic outcomes of cryoablation in treatment of renal cell carcinoma (RCC) with extension into adjacent renal sinus vein. MATERIALS AND METHODS: Review of an internally maintained renal ablation registry identified 7 patients (4 men and 3 women; median age 62 y; age range, 45-91 y) who underwent percutaneous cryoablation of RCC with imaging consistent with extension of tumor into an immediately adjacent renal sinus vein...
October 14, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29037364/a-national-resident-survey-about-the-current-state-of-venous-education-in-vascular-surgery-training-programs
#4
Caitlin W Hicks, Amber Kernodle, Christopher J Abularrage, Jennifer A Heller
OBJECTIVE: The objective of this study was to characterize U.S. vascular surgery trainees' perceptions, case numbers, and attitudes toward venous disease education, as well as their intent to incorporate it into future practice. These data will provide us with a current snapshot of postgraduate venous education from a resident's perspective. METHODS: Institutional Review Board approval was obtained. A 13-question survey was created and distributed to all vascular surgery residents in the United States by SurveyMonkey...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29037363/a-systematic-review-and-meta-analysis-of-two-novel-techniques-of-nonthermal-endovenous-ablation-of-the-great-saphenous-vein
#5
REVIEW
Cornelis G Vos, Çağdaş Ünlü, Jan Bosma, Clarissa J van Vlijmen, A Jorianne de Nie, Michiel A Schreve
BACKGROUND: Endothermal treatment of the great saphenous vein (GSV) has become the first-line treatment for superficial venous reflux. Nonthermal ablation has potential benefits for acceptability by patients and decreased risk of nerve injury. We performed a systematic review and meta-analysis to evaluate the efficacy of mechanochemical endovenous ablation (MOCA) and cyanoacrylate vein ablation (CAVA) for GSV incompetence. METHODS: MEDLINE, Embase, Cumulative Index to Nursing and Allied Health Literature, and Cochrane databases were searched for papers published between January 1966 and December 2016...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29037353/shortened-protocol-for-radiofrequency-ablation-of-perforator%C3%A2-veins
#6
Afsha Aurshina, Anil Hingorani, Sheila Blumberg, Ahmad Alsheekh, Natalie Marks, Amrit Hingorani, Eleanor Iadagarova, Enrico Ascher
BACKGROUND: Routine radiofrequency ablation (RFA) of an incompetent perforator vein (IPV) using the standard treatment protocol at 85°C has a treatment time of 6 minutes. To make treatment time more efficient, we sought to determine the effect of a shortened protocol for radiofrequency stylet (RFS) ablation by comparing the early success using three different temperatures: 85°C, 90°C, and 95°C. METHODS: A retrospective study examined 642 procedures of IPV closures in 255 patients with varying degrees of venous insufficiency treated with RFA from 2009 to 2015...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29037351/rivaroxaban-versus-fondaparinux-for-thromboprophylaxis-after-endovenous-laser-ablation
#7
Hong H Keo, Frederic Baumann, Nicolas Diehm, Christian Regli, Daniel Staub
OBJECTIVE: Endovenous heat-induced thrombosis (EHIT) and deep venous thrombosis (DVT) are well-known complications after superficial endovenous thermoablation. We investigated the efficacy of rivaroxaban in preventing EHIT and DVT after endovenous laser ablation (EVLA). METHODS: We retrospectively analyzed a consecutive series of patients presenting with truncal varicosis class C2 to C6 undergoing EVLA. After EVLA, all patients received oral rivaroxaban (10 mg) or subcutaneous fondaparinux (2...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29037350/prospective-study-of-safety-and-effectiveness-in-the-use-of-radiofrequency-ablation-for-incompetent-great-saphenous-vein-%C3%A2-12%C3%A2-mm
#8
Maday Cabrero Fernandez, Isaac Martinez Lopez, Manuela Maria Hernandez Mateo, Pablo Marques de Marino, Iñaki Cernuda Artero, Francisco Javier Serrano Hernando
OBJECTIVE: The objective of this study was to assess the outcomes of radiofrequency ablation (RFA) in incompetent great saphenous vein (GSV) according to its diameter. METHODS: This was a prospective single-center study including all patients treated with RFA from September 2014 to December 2015. The sample was divided according to the maximum GSV diameter measured on duplex ultrasound scan (A, <12 mm; B, ≥12 mm). Second-generation catheters (ClosureFast; Covidien, Mansfield, Mass) and tumescent anesthesia were used...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29036571/atrial-flow-dynamics-as-a-determinant-of-tissue-temperature-during-balloon-cryoablation
#9
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/29034496/clinical-impact-of-the-microembolic-signal-burden-during-catheter-ablation-for-atrial-fibrillation-just-a-lot-of-noise
#10
Christian von Bary, Thomas Deneke, Thomas Arentz, Anja Schade, Heiko Lehrmann, Susanne Schwab-Malek, Sabine Fredersdorf, Dobri Baldaranov, Lars Maier, Felix Schlachetzki
OBJECTIVES: Microembolic signal detection by transcranial Doppler ultrasonography may be considered a surrogate for cerebral events during invasive cardiac procedures. However, the impact of the microembolic signal count during pulmonary vein isolation on the clinical outcome is not well evaluated. We investigated the effect of the microembolic signal count on the occurrence of new silent cerebral embolism measured by diffusion-weighted imaging (DWI)-magnetic resonance imaging (MRI), changes in neuropsychological testing, and the occurrence of clinical events during long-term follow-up after pulmonary vein isolation...
October 16, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29034283/endovenous-laser-ablation-of-spermatic-vein-for-the-treatment-of-varicocele
#11
Antonio Basile, Alessandro Motta, Giovanni Failla, Giuseppe Caltabiano, Marco Pizzarelli, Cecilia Gozzo, Davide Castiglione, Stefano Palmucci
INTRODUCTION: Varicocele is a relatively complex pathology of the scrotum veins', known to be one of the easiest to treat. Modern treatment involves both surgical (open, laparoscopic and microsurgery) and interventional approach (either with coils and/or sclerosant injection). Our aim is to demonstrate the feasibility and the reliability of endovenous laser ablation (EVLA) of the spermatic vein for the treatment of varicocele. MATERIALS AND METHODS: We consecutively and prospectively treated 11 patients (age range 24-45 years old, mean 31y) with left varicocele, phlebografically classified as Bahren type I and with indication for percutaneous treatment...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29033337/five-year-results-of-great-saphenous-vein-treatment-a-meta-analysis
#12
REVIEW
Sterre A S Hamann, Jenny Giang, Marianne G R De Maeseneer, Tamar E C Nijsten, Renate R van den Bos
OBJECTIVES: The most frequently used treatment options for great saphenous vein incompetence are high ligation with stripping (HL+S), endovenous thermal ablation (EVTA), mainly consisting of endovenous laser ablation (EVLA) or radiofrequency ablation, and ultrasound guided foam sclerotherapy (UGFS). The objective of this systematic review and meta-analysis was to compare the long-term efficacy of these different treatment modalities. METHODS: A systematic literature search was performed...
October 12, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29030237/contact-force-sensing-for-ablation-of-persistent-atrial-fibrillation-a-randomized-multicenter-trial
#13
Sergio Conti, Rukshen Weerasooriya, Paul Novak, Jean Champagne, Hong Euy Lim, Laurent Macle, Yaariv Khaykin, Alfredo Pantano, Atul Verma
BACKGROUND: Impact of contact force sensing (CFS) on ablation of persistent atrial fibrillation (PeAF) is unknown. OBJECTIVE: The TOUCH AF randomized trial compared CFS guided ablation to a CFS blinded strategy. METHODS: Patients (n=128) undergoing first-time ablation for persistent AF were randomized to a CFS guided vs CFS blinded strategy. In the CFS guided procedure, operators visualized real-time force data; in the blinded procedure, force data was hidden...
October 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29024882/quantitative-mapping-of-elements-in-basil-leaves-ocimum-basilicum-based-on-cesium-concentration-and-growth-period-using-laser-ablation-icp-ms
#14
Jung Aa Ko, Naoki Furuta, Heung Bin Lim
Quantitative elemental mapping of metallic pollutants in sweet basil was studied by laser ablation (LA)-ICP-MS. For this, the sweet basil was cultivated in Hoagland nutrient solution spiked with 100 and 1000 ng mL(-1) of Cs for 10-60 days. Then, the Cs distribution in collected leaves was determined by LA-ICP-MS using lab-synthesized standard pellets based on NIST 1573a tomato leaves. For comparison, S, Ca, and K were also simultaneously determined in this measurement with a(13)C(+) signal from the leaves as an internal standard...
October 3, 2017: Chemosphere
https://www.readbyqxmd.com/read/29024212/prevalence-and-predictive-factors-of-left-atrial-tachycardia-occurring-after-second-generation-cryoballoon-ablation-of-atrial-fibrillation
#15
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/29023875/optimal-endpoint-for-catheter-ablation-of-longstanding-persistent-atrial-fibrillation-a-randomized-clinical-trial
#16
Yuan-Long Wang, Xu Liu, Yu Zhang, Wei-Feng Jiang, Li Zhou, Mu Qin, Dao-Liang Zhang, Xiao-Dong Zhang, Shao-Hui Wu, Kai Xu
BACKGROUND: In longstanding persistent atrial fibrillation (LPeAF), the ideal endpoint of ablation remains to be determined. This study aims to evaluate the value of pursuing AF termination or no with the same strategy during ablation on the long-term outcomes in patients with LPeAF. METHODS: Utilized "CCL" strategy is a fixed ablation approach consisting of circumferential pulmonary vein antrum isolation (CPVI), ablation of complex fractionated atrial electrogram (CFAE), and linear ablation between fied anatomical structures (the mitral isthmus, left atrial roof)...
October 10, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29021861/three-cases-of-vasospastic-angina-following-catheter-ablation-of-atrial-fibrillation
#17
Yoshihiko Kagawa, Eitaro Fujii, Satoshi Fujita, Norikazu Yamada, Masaaki Ito
Pulmonary vein isolation is an effective treatment for patients with atrial fibrillation (AF).Although vasospastic angina (VSA) is not a common complication after ablation of AF, we report 3 cases of VSA following ablation of persistent AF. Two of the 3 patients felt chest pain following pulmonary vein isolation, and complex fractionated atrial electrogram ablations were performed. ST elevation in the inferior leads and atrioventricular block occurred because of severe coronary vasospasm. In the third patient, the electrocardiography monitor detected transient ST elevation within an hour after ablation...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29021857/arrhythmogenic-left-atrial-roof-vein
#18
Hidehira Fukaya, Shinichi Niwano, Hironori Nakamura, Tazuru Igarashi, Tamami Fujiishi, Naruya Ishizue, Akira Satoh, Jun Kishihara, Junya Ako
A seventy year-old male was referred to our hospital to undergo radiofrequency catheter ablation (RFCA) for drug-refractory paroxysmal atrial fibrillation (AF). Pre-operative three-dimensional computed tomography revealed a unique left atrial (LA) roof vein. Electrophysiological findings showed expansion of the myocardial sleeve and local firing in the LA roof vein. We performed isolation of this arrhythmogenic abnormal vein concomitant with general pulmonary vein isolation in this case, and AF did not recur after the procedure...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29019873/reconstruction-left-atrium-and-isolation-pulmonary-veins-of-paroxysmal-atrial-fibrillation-using-single-contact-force-catheter-with-zero-x-ray-exposure-a-consort-study
#19
Jian Qiang Zhang, Rong Hui Yu, Jia Bing Liang, De Yong Long, Cai Hua Sang, Chang Sheng Ma, Jian Zeng Dong
BACKGROUND: Conventional ablation of paroxysmal atrial fibrillation (PAF) is associated with radiation risks for patients and laboratory staff. Three-dimensional (3D) mapping system capable of showing contact force (CF) and direction of catheter tip may compensate for nonfluoroscopic safety issues. OBJECTIVE: The aim of this study was to investigate the feasibility of zero x-ray exposure during reconstruction left atrium (LA) and ablation. METHODS: Single, CF catheter, and 3D mapping system were used to reconstruct LA and isolate pulmonary veins (PV) in all patients...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29019582/ultrasound-guided-foam-sclerotherapy-for-severe-chronic-venous-insufficiency
#20
Guilherme Camargo Gonçalves de-Abreu, Otacílio de Camargo, Márcia Fayad Marcondes de-Abreu, José Luís Braga de-Aquino
Chronic venous insufficiency is characterized by cutaneous alterations caused by venous hypertension; in severe forms, it progresses to lower limb ulcers. Lower limb varicose veins are the main cause of chronic venous insufficiency, and the classic treatment includes surgery and compressive therapy. Minimally invasive alternative treatments for varicose veins include new techniques such as venous thermal ablation using laser or radiofrequency. The use of different methods depends on clinical and anatomical factors...
September 2017: Revista do Colégio Brasileiro de Cirurgiões
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