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https://www.readbyqxmd.com/read/28718606/-interventional-treatment-of-venous-insufficiency
#1
Barbara Ney, Rolf P Engelberger, Amin Dabiri, Jean-François Lüthi, Andreas Erdmann, Caroline Krieger, Sébastien Déglise, Thierry Merminod, Philippe Kern, Lucia Mazzolai
Interventional treatment of venous insufficiency has been revolutionized by endovascular techniques. Some of these techniques, and particularly thermal ablation (endovenous laser, radiofrequency) are now recommended as first-line therapy in the latest international guidelines. This is because of less post-operative pain, a shorter leave from employment and similar or lower recurrence rate. Endovenous techniques allow safer and more efficient treatment of certain particular conditions : small saphenous vein, ulcers, and recurrent varicose veins...
March 15, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28718039/a%C3%A2-decade-of-atrial-fibrillation-ablation-shifts-in-patient-characteristics-and-procedural-outcomes
#2
C Teunissen, N Clappers, R J Hassink, J F van der Heijden, F H Wittkampf, P Loh
BACKGROUND: Over the past decade, radiofrequency catheter ablation (RFCA) of atrial fibrillation (AF) has evolved into a frequently performed procedure. The aim of this study was to monitor changes in patient characteristics, procedural characteristics, outcomes and complications over the past 10 years. METHODS: All consecutive patients who underwent primary RFCA treatment of AF in the University Medical Center Utrecht from 2005-2015 were included. In all patients, the primary ablation strategy was pulmonary vein (PV) antrum isolation without additional substrate modification...
July 17, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28715071/the-influence-of-ablation-power-reduction-associated-with-esophagus-location-on-pulmonary-veins-isolation-results-in-patients-with-paroxysmal-atrial-fibrillation-six-month-follow-up
#3
Piotr Buchta, Krzysztof Myrda, Michał Skrzypek, Adam Wojtaszczyk, Barbara Budzyn, Mariusz Gąsior
BACKGROUND: Catheter ablation of atrial fibrillation (AF) could be associated with a thermal esophageal (EO) injury. To avoid this complication intraluminal esophageal temperature monitoring and ablation power reduction at the areas with excessive heating could be used. However, the reduced energy could limit the ablation lesion depth, without creation of consist transmural scar and influence on long-term ablation results. AIM: The primary goal was to evaluate the homogeneity of forced ablation power reduction due to excessive EO heating in different parts of left atrium...
July 17, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28713823/intracardiac-hemostasis-and-fibrinolysis-parameters-in-patients-with-atrial-fibrillation
#4
Noémi Klára Tóth, Zoltán Csanádi, Orsolya Hajas, Alexandra Kiss, Edina Nagy-Baló, Kitti Bernadett Kovács, Ferenc Sarkady, László Muszbek, Zsuzsanna Bereczky, László Csiba, Zsuzsa Bagoly
AIMS: To identify intracardiac hemostasis or fibrinolysis abnormalities, which are associated with atrial fibrillation (AF) and increase the risk of thromboembolism. PATIENTS AND METHODS: Patient group consisted of 24 patients with AF and control group included 14 individuals with other supraventricular tachycardia undergoing transcatheter radiofrequency ablation. Blood samples were drawn from the femoral vein (FV), left atrium (LA), and left atrial appendage (LAA) before the ablation procedure...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28712522/comparison-of-the-origin-and-coupling-interval-between-ectopy-with-and-without-atrial-fibrillation-initiation
#5
Takashi Kanda, Masaharu Masuda, Masashi Fujita, Osamu Iida, Shin Okamoto, Takayuki Ishihara, Kiyonori Nanto, Akihiro Sunaga, Takuya Tsujimura, Yasuhiro Matsuda, Takuya Ohashi, Masaaki Uematsu
BACKGROUND: Differentiation of atrial fibrillation (AF) trigger ectopy from other ectopy is often difficult. The purpose of this study was to compare the origin and coupling intervals (CI) between AF-trigger and non-AF-trigger ectopy. METHODS: This study consisted of 120 patients with AF who underwent an initial ablation. Isoproterenol was infused up to 20μg/min to provoke ectopy and AF. We measured the CI of all ectopy provoked by an isoproterenol infusion. The %CI was calculated as the CI of the ectopy/P-P interval of the preceding 2 beats...
July 13, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28706589/catheter-ablation-of-atrial-fibrillation-facilitated-by-preprocedural-three-dimensional-transesophageal-echocardiography-long-term-outcome
#6
Klaus Kettering, Felix Gramley, Stephan von Bardeleben
AIM: To evaluate the long-term outcome of catheter ablation of atrial fibrillation (AF) facilitated by preprocedural three-dimensional (3-D) transesophageal echocardiography. METHODS: In 50 patients, 3D transesophageal echocardiography (3D TEE) was performed immediately prior to an ablation procedure (paroxysmal AF: 30 patients, persistent AF: 20 patients). The images were available throughout the ablation procedure. Two different ablation strategies were used. In most of the patients with paroxysmal AF, the cryoablation technique was used (Arctic Front Balloon, CryoCath Technologies/Medtronic; group A2)...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28698895/using-anatomical-landmark-to-avoid-phrenic-nerve-injury-during-balloon-based-procedures-in-atrial-fibrillation-patients
#7
Nicolina M Smith, Larry Segars, Travis Kauffman, Anthony B Olinger
PURPOSE: Atrial fibrillation (AF) is an arrhythmia which affects as many as 2.7 million Americans. AF should be treated, because it can lead to a four-to-fivefold increased risk of experiencing a stroke. The American College of Cardiology/American Heart Association guidelines for the treatment of drug refractory and symptomatic paroxysmal AF denote catheter ablation as the standard of care. The newest ablation treatment, cryoballoon, uses a cold balloon tip. The biggest risk factor associated with the cryoballoon ablation is phrenic nerve injury (PNI)...
July 11, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28698417/-intravenous-ablation-for-lower-extremity-varices-to-prevent-recurrent-pulmonary-embolism-in-klippel-trenaunay-syndrome-report-of-a-case
#8
Ikutaro Kigawa, Masahiro Aiba, Atsushi Ito
Klippel-Trenaunay syndrome( KTS) is a complex congenital anomaly characterized by lower extremity varix and venous malformations, port-wine stains, and soft tissue and bone hypertrophy. We present a case of a 35-year-old man of KTS with pulmonary embolism (PE). The patient was referred to our hospital complaining of the leg pain and sudden onset of dyspnea. Enhanced computed tomography (CT) showed lower extremity varices, superficial thrombophlebitis and bilateral pulmonary thrombi. No venous malformations except for varicose veins were revealed in the limbs or pelvis...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28697961/fifteen-year-results-of-radiofrequency-ablation-using-vnus-closure-for-the-abolition-of-truncal-venous-reflux-in-patients-with-varicose-veins
#9
M S Whiteley, I Shiangoli, S J Dos Santos, E B Dabbs, T J Fernandez-Hart, J M Holdstock
OBJECTIVES: Endovenous thermal ablation (EVTA) of varicose veins was introduced in the late 1990s with radiofrequency ablation (RFA) using the VNUS Closure device. The results of the original VNUS Closure device for the abolition of truncal venous reflux at 15 years are reported. METHODS: A prospective audit of a group of patients treated with VNUS Closure 15 years previously was carried out, using clinical assessment and duplex ultrasound. A total of 189 patients were treated with VNUS Closure between March 1999 and December 2001 and were invited for clinical assessment (subjective and objective) and duplex ultrasonography (DUS) to assess treatment outcome and de novo disease progression...
July 8, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28697936/radiofrequency-catheter-ablation-for-atrial-fibrillation-approaches-and-outcomes
#10
REVIEW
Manish Kalla, Prashanthan Sanders, Jonathan M Kalman, Geoffrey Lee
Catheter ablation is now at the forefront of the management of symptomatic atrial fibrillation (AF). Its role in paroxysmal AF is well defined with considerable data supporting its role. Catheter ablation in persistent AF has been less effective and the subject of considerable debate. Mechanistic studies have demonstrated the critical role of pulmonary vein physiology in paroxysmal AF, whereas the mechanisms that sustain persistent AF are not well understood. Additional substrate ablation in persistent AF has not improved long-term outcomes and the use of novel mapping technologies to assess rotor activity remains controversial...
June 13, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28695373/catheter-ablation-of-persistent-atrial-fibrillation-circumferential-pulmonary-vein-ablation-beneficial-effect-of-an-additional-linear-lesion-at-the-roof-of-the-left-atrium-on-the-long-term-outcome
#11
Klaus Kettering, Dag-Hau Yim, Felix Gramley
BACKGROUND: Circumferential pulmonary vein ablation is still the standard approach in patients with persistent atrial fibrillation. However, the results are not very favourable and more complex ablation strategies are the subject of current controversy. Therefore, we have evaluated the effect of an additional linear lesion at the roof of the left atrium on the long-term outcome. METHODS: A total of 125 patients with symptomatic persistent atrial fibrillation underwent a circumferential pulmonary vein ablation procedure in combination with an additional linear lesion at the roof of the left atrium (group A)...
July 10, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28695222/ratiometric-in-vivo-auditioning-of-targeted-silver-nanoparticles
#12
Kadri Toome, Anne-Mari A Willmore, Päärn Paiste, Allan Tobi, Kazuki N Sugahara, Kalle Kirsimäe, Erkki Ruoslahti, Gary B Braun, Tambet Teesalu
Attaching affinity ligands to nanoparticles (NPs) increases selectivity for targeting cells and tissues, and can result in improved sensitivity and reduced off-target toxicity in diagnostic and therapeutic systems. The decision over key features - NP size, shape, coating strategies and targeting ligands for clinical translation is often hampered by a lack of quantitative in vivo NP homing assays. Sensitive, internally controlled assays are needed which allow for quantitative comparisons (auditions) among various formulations of targeted NPs...
July 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28693044/venous-intervention-improves-patient-outcomes
#13
Wayne J Caputo, Michael D Kaplan, Robert E Kamieniecki, Melissa Hawkins, Patricia Monterosa, Kelly Eagen, Tracy Ike, Amy Iannitelli
INTRODUCTION: The healing of venous ulcers is difficult, and several sources indicate a multidisciplinary plan of care as the best approach to the healing of these wounds. MATERIALS AND METHODS: Seventy-five patients with suspected venous disease being treated at Northern New Jersey Medical Center were assessed by dedicated interventional radiology physicians as part of Wound Center protocol. Of those patients, 27 required diagnostic testing, such as CT venogram or venography...
July 11, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28690298/comparison-of-empiric-isolation-and-conventional-isolation-of-superior-vena-cava-in-addition-to-pulmonary-vein-isolation-on-the-outcome-of-paroxysmal-atrial-fibrillation-ablation
#14
Jin-Yi Li, Jing-Bo Jiang, Guo-Qiang Zhong, Hong-Hong Ke, Yan He
Radiofrequency catheter ablation (RFCA) in the treatment of AF is currently based on pulmonary vein isolation (PVI). Some studies have investigated the efficacy of empiric SVC isolation (SVCI) in addition to conventional PVI in order to improve success rates and reduce recurrence rates. However, the results of the studies have given conflicting data.We performed a meta-analysis to evaluate the efficacy and safety of the empiric SVCI compared with conventional SVCI for paroxysmal atrial fibrillation (PAF) ablation...
July 10, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28688719/how-safe-are-noacs-compared-with-phenprocoumon-after-pulmonary-vein-isolation-with-the-cryoballoon-technique-using-purse-string-suture-closure
#15
Ersan Akkaya, Alexander Berkowitsch, Sergej Zaltsberg, Nikolas Deubner, Harald Greiss, Andreas Hain, Christian W Hamm, Johannes Sperzel, Malte Kuniss, Thomas Neumann
INTRODUCTION: The aim of this observational study was to compare the postprocedural incidence of bleeding and thromboembolic complications associated with novel oral anticoagulants (NOACs) with that of interrupted and continuous phenprocoumon after pulmonary vein isolation (PVI) using a purse-string suture (PSS) closure of the puncture site. METHODS AND RESULTS: Consecutive patients who had undergone PVI via cryoballoon ablation were divided into the following groups: (1) interrupted phenprocoumon with heparin bridging (n=101), (2) continuous phenprocoumon targeting an internationally normalized ratio>2 (n=70), and (3) NOACs without bridging that were restarted 2-4h after the procedure (n=185)...
June 23, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28687670/stand-alone-pulmonary-vein-isolation-versus-pulmonary-vein-isolation-with-additional-substrate-modification-as-index-ablation-procedures-in-patients-with-persistent-and-long-standing-persistent-atrial-fibrillation-the-randomized-alster-lost-af-trial-ablation
#16
Thomas Fink, Michael Schlüter, Christian-Hendrik Heeger, Christine Lemes, Tilman Maurer, Bruno Reissmann, Johannes Riedl, Laura Rottner, Francesco Santoro, Boris Schmidt, Peter Wohlmuth, Shibu Mathew, Christian Sohns, Feifan Ouyang, Andreas Metzner, Karl-Heinz Kuck
BACKGROUND: Pulmonary vein isolation (PVI) for persistent atrial fibrillation is associated with limited success rates and often requires multiple procedures to maintain stable sinus rhythm. In the prospective and randomized Alster-Lost-AF trial (Ablation at St. Georg Hospital for Long-Standing Persistent Atrial Fibrillation), we sought to assess, in patients with symptomatic persistent or long-standing persistent atrial fibrillation, the outcomes of initial ablative strategies comprising either stand-alone PVI (PVI-only approach) or a stepwise approach of PVI followed by complex fractionated atrial electrogram ablation and linear ablation (Substrate-modification approach)...
July 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28685200/role-of-the-burden-of-premature-atrial-contractions-during-the-blanking-period-following-second-generation-cryoballoon-ablation-in-predicting-late-recurrences-of-atrial-arrhythmias
#17
Hugo-Enrique Coutiño, Juan-Pablo Abugattas, Moisés Levinstein, Giacomo Mugnai, Darragh Moran, Valentina De Regibus, Erwin Ströker, Ken Takarada, Rajin Choudhury, Luis Marroquín, Francesca Salghetti, Ian-Emiray Lusoc, Saverio Iacopino, Juan Sieira, Carlo de Asmundis, Pedro Brugada, Gian-Battista Chierchia
PURPOSE: Recent data suggests that high burden of premature atrial complexes after pulmonary vein isolation predicts recurrences of atrial arrhythmias. The present study sought to assess the role of premature atrial complexes burden in predicting atrial arrhythmias recurrences in patients with atrial fibrillation (AF) who have undergone second-generation cryoballoon ablation (CB-Adv). METHODS: Consecutive patients with drug-resistant paroxysmal atrial fibrillation who underwent pulmonary vein isolation using CB-Adv technology as the index procedure were retrospectively included...
July 6, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28682127/factors-influencing-the-choice-of-treatment-modality-for-individual-patients-with-varicose-veins
#18
B Campbell, N Chinai, P Hollering, H Wright, R McCarthy
INTRODUCTION There is evidence of effectiveness for a range of different treatment modalities for varicose veins but limited information about factors that influence treatment choice for individual patients. METHODS A postal survey was sent to 438 UK members of the Vascular Society of Great Britain and Ireland. RESULTS Overall, 251 responses were received (response rate 57%). A total of 222 respondents treated varicose veins using conventional surgery (84%), endothermal ablation (82%) and foam sclerotherapy (68%)...
July 6, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28678147/efficacy-of-second-generation-cryoballoon-ablation-in-paroxysmal-and-persistent-atrial-fibrillation-patients
#19
Antonio Curnis, Francesca Salghetti, Manuel Cerini, Francesca Vassanelli, Lorenza Inama, Clara Villa, Daniele Giacopelli, Abdallah Raweh, Luca Bontempi
AIMS: In this study, we aimed to compare the efficacy of single pulmonary vein isolation with the second-generation cryoballoon (CB-Adv) and predictors of atrial fibrillation recurrences in patients with paroxysmal (PAF) and persistent atrial fibrillation (PersAF). METHODS: Consecutive PAF and PersAF patients undergoing CB-Adv for the first time were enrolled. Patients were followed with in-clinic visits including Holter ECG. Atrial arrhythmic episodes symptomatic or documented lasting more than 30 s were considered as recurrences...
July 3, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28675511/electrophysiological-relation-between-the-superior-vena-cava-and-right-superior-pulmonary-vein-in-patients-with-paroxysmal-atrial-fibrillation
#20
Kentaro Yoshida, Ai Hattori, Hidekazu Tsuneoka, Yasuaki Tsumagari, Yoshiaki Yui, Akira Kimata, Yoko Ito, Mari Ebine, Yoshiko Uehara, Naoya Koda, Masako Misaki, Daisuke Abe, Noriyuki Takeyasu, Kazutaka Aonuma, Akihiko Nogami
INTRODUCTION: The superior vena cava (SVC) is a main source of non-pulmonary vein (PV) ectopies initiating atrial fibrillation (AF). Empiric SVC isolation may improve rhythm outcomes after catheter ablation of AF. Because the SVC passes immediately adjacent to the right superior PV (RSPV), an electrophysiological relation could be present between the two structures. The present study aimed to estimate the interrelation between the SVC and RSPV by evaluating arrhythmogenic activities observed during catheter ablation of AF...
July 4, 2017: Journal of Cardiovascular Electrophysiology
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