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Laser vein ablation

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https://www.readbyqxmd.com/read/28775075/first-selective-12-lox-inhibitor-ml355-impairs-thrombus-formation-and-vessel-occlusion-in-vivo-with-minimal-effects-on-hemostasis
#1
Reheman Adili, Benjamin E Tourdot, Katherine Mast, Jennifer Yeung, John Cody Freedman, Abigail Green, Diane K Luci, Ajit Jadhav, Anton Simeonov, David J Maloney, Theodore R Holman, Michael Holinstat
OBJECTIVE: Adequate platelet reactivity is required for maintaining hemostasis. However, excessive platelet reactivity can also lead to the formation of occlusive thrombi. Platelet 12(S)-lipoxygenase (12-LOX), an oxygenase highly expressed in the platelet, has been demonstrated to regulate platelet function and thrombosis ex vivo, supporting a key role for 12-LOX in the regulation of in vivo thrombosis. However, the ability to pharmacologically target 12-LOX in vivo has not been established to date...
August 3, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28767808/preliminary-results-of-severe-venous-insufficiency-treatment-with-thermal-ablation-of-the-great-saphenous-vein-by-endovascular-technique-with-laser-diode-980nm-developed-in-brazil-associated-with-sclerotherapy-with-polidocanol
#2
Matheus Bertanha, Marcone Lima Sobreira, Paula Angelelli Bueno Camargo, Rafael Elias Farres Pimenta, Jamil Victor Oliveira Mariúba, Regina Moura, Vanderlei Salvador Bagnato, Winston Bonetti Yoshida
The endovenous laser ablation (EVLA) of the insufficient saphenous vein has similar results to open conventional surgery, but less morbidity. The echo-guided polidocanol foam sclerotherapy technique has been used for the same purpose. The combined techniques may play a role for more severe diseases, such as those with varicose ulcers. An EVLA device (called VELAS) has been developed in the Optics and Photonics Research Center of USP-São Carlos in agreement with FMB-UNESP. In this study, we present the preliminary results of the VELAS device (MMO 980nm diode) in patients with chronic venous ulcer, associated with echo-guided polidocanol foam sclerotherapy for the treatment of varicosities...
May 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28723304/the-quest-for-durable-lesions-in-catheter-ablation-of-atrial-fibrillation-technological-advances-in-radiofrequency-catheters-and-balloon-devices
#3
Tilman Maurer, Karl-Heinz Kuck
Atrial fibrillation is the most common cardiac arrhythmia and represents a growing clinical, social and economic challenge. Catheter ablation for symptomatic atrial fibrillation has evolved from an experimental procedure into a widespread therapy and offers a safe and effective treatment option. A prerequisite for durable PVI are transmural and contiguous circumferential lesions around the pulmonary veins. However, electrical reconnection of initially isolated pulmonary veins remains a primary concern and is a dominant factor for arrhythmia recurrence during long-term follow up...
July 24, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28718606/-interventional-treatment-of-venous-insufficiency
#4
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/28695222/ratiometric-in-vivo-auditioning-of-targeted-silver-nanoparticles
#5
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 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28647634/more-successful-results-with-less-energy-in-endovenous-laser-ablation-treatment-long-term-comparison-of-bare-tip-fiber980nm-laser-and-radial-tip-fiber1470nm-laser-application
#6
Ümit Arslan, Eyüpserhat Çalık, Mehmet Tort, Ziya Yıldız, Ali İhsan Tekin, Hüsnü Kamil Limandal, Mehmet Ali Kaygın, Özgür Dağ, Bilgehan Erkut
BACKGROUND: Varices and venous insufficiency are common and serious health problems in the general population which affect quality of life. Endothermal treatment of the great saphenous vein has become the first line of treatment for superficial venous reflux, and the endovenous laser ablation (EVLA) method has been widely accepted all over the world. In this method, ablation is provided by a laser fiber inserted into the lumen of the vein. Initially, the fibers were 810 nm, but today the fibers are usually 940, 980, or 1470 nm...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28623990/incidence-of-venous-leg-ulcer-healing-and-recurrence-after-treatment-with-endovenous-laser-ablation
#7
William A Marston, Jason Crowner, Ana Kouri, Corey A Kalbaugh
BACKGROUND: The Effect of Surgery and Compression on Healing and Recurrence (ESCHAR) trial previously reported that patients with venous leg ulcers treated with saphenous stripping experienced a significantly reduced incidence of ulcer recurrence compared with patients treated with compression therapy. Most patients with leg ulcers and saphenous insufficiency are currently treated with endovenous thermal ablation (EVTA), but little information is available on the long-term results after EVTA in Clinical, Etiology, Anatomy, and Pathophysiology (CEAP) clinical class 5 (C5) and class 6 (C6) patients...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28623988/rivaroxaban-for-thrombosis-prophylaxis-in-endovenous-laser-ablation-with-and-without-phlebectomy
#8
Heiko Uthoff, Daniel Holtz, Pavel Broz, Daniel Staub, Luca Spinedi
OBJECTIVE: Endovenous heat-induced thrombosis (EHIT) is a well-described complication of endovenous laser ablation (EVLA). We report our centers' experience on the efficacy (EHIT level ≥2 according to the Kabnick classification) and safety (observed major and minor bleeding events) of rivaroxaban for EHIT prophylaxis in EVLA with and without concomitant phlebectomy. METHODS: Demographic, procedural, and outcome data of all patients with EVLA of the great, accessory, or small saphenous vein and EHIT prophylaxis with 10 mg/d rivaroxaban between 2012 and 2014 were reviewed and analyzed in this investigator-initiated multicenter retrospective observational single-arm study...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28616724/nd-yag-laser-therapy-for-rectal-and-vaginal-venous-malformations
#9
Lori A Gurien, Richard J Jackson, Michelle M Kiser, Gresham T Richter
BACKGROUND: Limited therapeutic options exist for rectal and vaginal venous malformations (VM). We describe our center's experience using Nd:YAG laser for targeted ablation of abnormal veins to treat mucosally involved pelvic VM. METHODS: Records of patients undergoing non-contact Nd:YAG laser therapy of pelvic VM at a tertiary children's hospital were reviewed. Symptoms, operative findings and details, complications, and outcomes were evaluated. RESULTS: Nine patients (age 0-24) underwent Nd:YAG laser therapy of rectal and/or vaginal VM...
August 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28616235/exacerbation-of-alopecia-areata-a-possible-complication-of-sodium-tetradecyl-sulphate-foam-sclerotherapy-treatment-for-varicose-veins
#10
Mark S Whiteley, Victoria C Smith
A 40-year-old woman with a history of alopecia areata related to stress or hormonal changes was treated for bilateral primary symptomatic varicose veins (CEAP clinical score C2S) of pelvic origin, using a staged procedure. Her first procedure entailed pelvic vein embolisation of three pelvic veins using 14 coils and including foam sclerotherapy of the tributaries, using 3% sodium tetradecyl sulphate. Following this procedure, she had an exacerbation of alopecia areata with some moderate shedding of hair. Subsequently, she underwent endovenous laser ablation under local anaesthetic without incident...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28595565/gold-nanoparticles-by-laser-ablation-for-x-ray-imaging-and-protontherapy-improvements
#11
Torrisi Lorenzo, Nancy Restuccia, Irene Paterniti
Gold nanoparticles, 5-20 nm in diameter, were generated with a pulsed Nd:YAG laser at 1010 W/cm2 at solution concentrations ranging between 1-100 mg/ml. Nanoparticles were characterized using optical absorbance, X-ray fluorescence, SEM, and TEM. Biocompatible nanoparticle solutions were injected by intravenously into the tail veins of mice followed by X-ray imaging using 20-45 keV photons to evaluate the uptake and the clearance by different organs of the nanoparticles. The incremental X-ray contrast imaging using gold nanoparticles was investigated and measured...
June 8, 2017: Recent Patents on Nanotechnology
https://www.readbyqxmd.com/read/28523345/endovenous-laser-ablation-therapy-in-children-applications-and-outcomes
#12
Premal A Patel, Alex M Barnacle, Sam Stuart, Joao G Amaral, Philip R John
BACKGROUND: Endovenous laser ablation is well recognized as the first-line treatment for superficial venous reflux with varicose veins in adults. It is not widely reported and is not an established practice in pediatric patients. OBJECTIVE: To illustrate a variety of pediatric venous conditions in which endovenous laser ablation can be utilized and to demonstrate its feasibility and safety in children. MATERIALS AND METHODS: We conducted a retrospective review of endovenous laser ablation procedures performed between January 2007 and July 2014 at two large pediatric institutions...
May 18, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28474527/crossfire-for-two-photon-photodynamic-therapy-with-fluorinated-ruthenium-ii-photosensitizers
#13
Kangqiang Qiu, Jinquan Wang, Cuilan Song, Lili Wang, Hongyi Zhu, Huaiyi Huang, Juanjuan Huang, Hui Wang, Liangnian Ji, Hui Chao
Synergistic photodynamic therapy (PDT) that combines photosensitizers (PSs) to attack different key sites in cancer cells is very attractive. However, the use of multiple PSs may increase dark cytotoxicity. Additionally, realizing the multiple vein passage of several PSs through dosing could be a challenge in clinical treatment. To address these issues, a novel strategy that enables a single PS to ablate two key sites (i.e., cytomembranes on the outside and mitochondria on the inside) of cancer cells synergistically was proposed...
June 7, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28466194/the-role-of-laser-power-and-pullback-velocity-in-the-endovenous-laser-ablation-efficacy-an-experimental-study
#14
N Yu Ignatieva, O L Zakharkina, C V Masayshvili, S V Maximov, V N Bagratashvili, V V Lunin
Endovenous laser ablation is an effective and minimally invasive alternative to surgical removal of incompetent veins. However, many controversies concerning optimal laser parameters usage in this procedure still remain. The purpose of this experimental study was to assess the adequate parameters required for vein wall destruction and to evaluate the role of fiber pullback velocity on vessel wall degradation. Varicose vein segments were treated with 1470-nm diode laser 3 to 9.5 W in power. The fiber moved through the vein at a velocity of 0...
May 2, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28465773/treatment-patterns-and-outcomes-in-patients-with-varicose-veins
#15
Rajiv Mallick, Aditya Raju, Chelsey Campbell, Rashad Carlton, David Wright, Kimberly Boswell, Michael Eaddy
BACKGROUND: Approximately 24% of adults in the United States have visible varicose veins, and an estimated 6% have evidence of advanced chronic venous disease. The majority of individuals with varicose veins seek treatment because of symptoms, such as aching, throbbing, fatigue, pruritus, ankle swelling, and tenderness, rather than cosmetic reasons. Furthermore, varicose veins are a manifestation of chronic venous insufficiency, which can progress to leg pain, leg edema, chronic skin changes, and nonhealing ulcers...
November 2016: American Health & Drug Benefits
https://www.readbyqxmd.com/read/28411700/association-between-antithrombotic-therapy-and-risk-of-postoperative-complications-among-patients-undergoing-endovenous-laser-ablation
#16
Kodai Takahashi, Hideto Ito, Toshio Katsube, Masatoshi Hashimoto, Kazuhito Mita, Hideki Asakawa, Takashi Hayashi, Keiichi Fujino
BACKGROUND: The aim of the study was to evaluate the clinical results and postoperative complications, especially recanalization or bleeding complications, in patients with saphenous varicose veins undergoing endovenous laser ablation (EVLA) while receiving antithrombotic therapy (ATT). METHODS: This retrospective cohort study included 1136 Japanese patients undergoing EVLA with a 980-nm diode laser between January 2012 and November 2015 at our institution. The patients were divided into two groups: ATT users (ATT group) and nonusers (control group)...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28411699/outcomes-of-a-single-center-experience-with-classification-and-treatment-of-endothermal-heat-induced-thrombosis-after-endovenous-ablation
#17
Lindsey M Korepta, Jennifer J Watson, M Ashraf Mansour, Christopher M Chambers, Robert F Cuff, Jason D Slaikeu, Peter Y Wong
OBJECTIVE: Endothermal heat-induced thrombosis (EHIT) is a known complication of endothermal venous ablation procedures. EHIT can lead to deep vein thrombosis/pulmonary embolism, which cause significant disability and, rarely, death. Other studies have evaluated risk factors for EHIT. There is an accepted grading system for EHIT, but there is no consensus on treatment type, duration, or follow-up. We retrospectively evaluated all cases of EHIT after radiofrequency ablation or endovenous laser ablation at our institution during a 7-year period, focusing on classification, treatment, and outcomes of EHIT...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28411696/first-10-month-results-of-the-vascular-quality-initiative-varicose-vein-registry
#18
Andrea T Obi, Danielle C Sutzko, Jose I Almeida, Lowell Kabnick, Jack L Cronenwett, Nicholas H Osborne, Brajesh K Lal, Thomas W Wakefield
OBJECTIVE: The Vascular Quality Initiative Varicose Vein Registry (VQI VVR) represents a new Patient Safety Organization database launched in January 2015 as a collaborative effort between the American Venous Forum and the Society for Vascular Surgery. This study was undertaken to identify real-world trends among treatment choices and outcomes of varicose vein patients. METHODS: Registry data prospectively captured anatomic, procedural, and outcome data for patients with C2 or more severe disease undergoing intervention for venous varicosities from January to November 2015...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28408089/editor-s-choice-mid-term-outcomes-of-endovenous-laser-ablation-in-patients-with-active-and-healed-venous-ulcers-a-follow-up-study
#19
H Sinabulya, R Östmyren, L Blomgren
OBJECTIVES: The aim of this study was to assess the mid-term ulcer recurrence rate in patients with healed or active venous ulcers treated with endovenous laser ablation (EVLA) for incompetent superficial axial veins and to search for possible risk factors for non-healing and recurrence. METHODS: Consecutive patients treated with EVLA because of a healed or active venous ulcer between 2006 and 2013 were identified in the medical records and quality registry and invited to follow-up, including clinical history, study examination, Duplex ultrasound scanning, ankle brachial pressure, photoplethysmography, venous clinical severity score (VCSS), and health related quality of life (HRQoL) measured with EQ5D...
May 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28389694/utility-of-the-ginza-forceps-for-superficial-phlebectomy-during-endovenous-laser-ablation-of-the-great-saphenous-vein
#20
Takeshi Baba, Takao Ohki, Yuji Kanaoka, Koji Maeda, Kenjirou Kaneko, Masayuki Hara, Kota Shukuzawa, Soichiro Fukushima
PURPOSE: To evaluate the efficiency of using the Ginza forceps (DVx, Tokyo, Japan), which have a long shaft and strong grip, for superficial phlebectomy with the stab avulsion technique, during simultaneous endovenous laser ablation (EVLA) of the great saphenous vein (GSV). METHODS: The subjects were patients treated with EVLA performed by a single operator at one institution. All patients had a GSV diameter of 4-10 mm and an EVLA length of the GSV of >20 cm...
April 7, 2017: Surgery Today
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