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Laser vein ablation

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https://www.readbyqxmd.com/read/28070820/development-of-a-new-catheter-prototype-for-laser-thrombolysis-under-guidance-of-optical-coherence-tomography-oct-validation-of-feasibility-and-efficacy-in-a-preclinical-model
#1
Rouven Berndt, Rene Rusch, Lars Hummitzsch, Matthias Lutz, Katharina Heß, Katharina Huenges, Bernd Panholzer, Christoph Otte, Assad Haneya, Georg Lutter, Alexander Schlaefer, Jochen Cremer, Justus Groß
In this feasibility study, a novel catheter prototype for laser thrombolysis under the guidance of optical coherence tomography (OCT) was designed and evaluated in a preclinical model. Human arteries and veins were integrated into a physiological flow model and occluded with thrombi made from the Chandler Loop. There were four experimental groups: placebo, 20 mg alteplase, laser, 20 mg alteplase + laser. The extent of thrombolysis was analyzed by weighing, OCT imaging and relative thrombus size. In the alteplase group, thrombus size decreased to 0...
January 9, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28050474/technique-efficiency-and-safety-of-different-nerve-blocks-for-analgesia-in-laser-ablation-and-sclerotherapy-for-lower-limb-superficial-venous-insufficiency-a-multicentre-experience
#2
Krishna Prasad Premnath Bellam, Binu Joy, Abhilash Sandhyala, Kiran Naiknaware, Brijesh Ray, Vijayakumar
INTRODUCTION: Laser ablation and sclerotherapy, as minimally invasive alternatives to surgery for varicose veins, have good efficacy, safety and cosmetic result. Some form of anaesthesia is generally used for pain control. AIM: To describe the technique and evaluate the efficacy and safety of femoral, saphenous and sciatic nerve blocks in isolation or in combination for analgesia during laser ablation and sclerotherapy for lower limb varicose veins. MATERIALS AND METHODS: In this prospective observational study, over a period of 33 months, in 856 limbs of 681 patients with varicose veins, ultrasound guided femoral, saphenous and sciatic nerve blocks for analgesia were performed in 769, 808 and 52 instances respectively; following which, endovenous laser ablation, sclerotherapy or combination of both were carried out using standard practice...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28043211/comparison-of-heat-induced-damage-at-the-saphenofemoral-junction-after-ablation-with-1-470-nm-laser-or-radiofrequency
#3
Evren Ozcinar, Mehmet Cakici, Oktay Korun, Unsal Han, Ugursay Kiziltepe
BACKGROUND: The aim of this study was to evaluate the heat induced damage at the saphenofemoral junction level according to histopathological changes after radiofrequency or 1,470 nm radial tip laser ablation. PATIENTS AND METHODS: Varicose vein segments of 6-10 mm in diameter were exposed to radiofrequency (Closure Fast catheter, 7 cm heat segment, one cycle, 15 seconds, 10 Watt, 120 °C) or laser ablation (1,470 nm radial tip, continuous wave, vein diameter: 6 cm/8 cm/10 cm-power: 10 Watt-pullback speed: 2...
January 3, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/28018497/morphological-comparison-of-blood-vessels-that-were-heated-with-a-radiofrequency-device-or-a-1470-nm-laser-and-a-radial-2ring-fiber
#4
Takashi Yamamoto, Masahiro Sakata
Introduction: Radio waves and lasers can be used as heat sources during endovenous thermal ablation (EVTA) for saphenous vein insufficiency. A morphological comparison of veins that had been treated with EVTA was performed between those treated with an endovenous closure system (a radiofrequency [RF] system) and those treated with a Radial 2Ring fiber connected to a 1470-nm laser generator (2R). Methods: The experiment was conducted in a system that reproduces the physiological conditions found in the saphenous veins during EVTA...
2016: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/28018495/postoperative-venous-thromboembolism-in-patients-undergoing-endovenous-laser-and-radiofrequency-ablation-of-the-saphenous-vein
#5
Nobuhisa Kurihara, Masayuki Hirokawa, Takashi Yamamoto
Objective: Endovenous laser ablation (EVLA) and radiofrequency ablation (RFA) are safe and effective treatments for varicose veins caused by saphenous reflux. Deep venous thrombosis (DVT) and endovenous heat-induced thrombosis (EHIT) are known complications of these procedures. The purpose of this article is to investigate the incidence of postoperative DVT and EHIT in patients undergoing EVLA and RFA. Methods: The patients were assessed by clinical examination and venous duplex ultrasonography before operation and at 24-72 hours, 1 month, and 1 year follow-up after operation...
2016: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/27987615/practice-patterns-of-endovenous-ablation-therapy-for-the-treatment-of-venous-reflux-disease
#6
Faisal Aziz, Jose Diaz, John Blebea, Fedor Lurie
OBJECTIVE: The purpose of this study was to assess practice patterns of endovenous ablation therapy for the treatment of venous reflux disease among the vein specialist members of the American Venous Forum (AVF). METHODS: An online survey was conducted of AVF members designed to identify demographics, treatment practices, and clinical variables in the selection of vein ablation devices. RESULTS: The survey was distributed to 798 practicing physicians, of whom 129 (16%) responded...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27987602/cost-analysis-and-implications-of-routine-deep-venous-thrombosis-duplex-ultrasound-scanning-after-endovenous-ablation
#7
REVIEW
Luis Suarez, Erica Tangney, Thomas F O'Donnell, Mark D Iafrati
BACKGROUND: Duplex ultrasound (DUS) is performed by the majority of physicians after endovenous ablation (EVA) of the great saphenous vein to screen for endovenous heat-induced thrombosis (EHIT) at the saphenofemoral junction extending into the femoral vein. Several factors should be considered in assessing the value and cost of routine DUS after EVA: the natural history of EHIT is poorly defined, the incidence appears low, and the majority are both asymptomatic and Kabnick type 2 (projecting only slightly into the femoral vein)...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27981883/varicose-vein-therapy-and-nerve-lesions
#8
Tobias Hirsch
Treating varicose veins using endovenous thermal techniques - especially laser and radio frequency ablation - has emerged as an effective alternative to open surgery with stripping and high ligation. Even though these methods are very gentle and patient-friendly, they are nevertheless accompanied by risks and side effects. Compared to open surgical therapy, the risk of damage to peripheral and motor nerves is reduced; however, it still exists as a result of heat exposure and tumescent anaesthesia. Non-thermal methods that can be applied without tumescent anaesthesia have been introduced to the market...
December 16, 2016: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27980294/what-is-the-acute-antral-lesion-size-after-pulmonary-vein-isolation-using-different-balloon-ablation-technologies
#9
Laura Perrotta, Athanasios Konstantinou, Stefano Bordignon, Alexander Fuernkranz, Daniela Dugo, Kr Julian Chun, Boris Schmidt
BACKGROUND: Clinical outcome after pulmonary vein isolation (PVI) may be linked to both durability of PVI and the antral lesion size. Data on balloon-guided technologies are scarce. We investigated the size of the isolated surface area (ISA) acutely after PVI achieved by cryoballoon (CB) or laser balloon (LB), both using voltage mapping.Methods and Results:In 40 patients (73% male, mean age 66±9 years), a bipolar voltage map before and after PVI in sinus rhythm was acquired to delineate the isolated antral surface area (IASA, contiguous area of low voltage <0...
December 14, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27935887/-efficacy-of-using-rivaroxaban-for-treatment-of-heat-induced-thrombosis-after-endovenous-laser-ablation
#10
A A Fokin, D A Borsuk, E L Kazachkov
AIM: The study was aimed at assessing efficacy of using rivaroxaban for treatment of endothermal heat-induced thrombosis (EHIT) after endovenous laser ablation (EVLA) of saphenous veins. MATERIAL AND METHODS: Our prospective study included a total of 1,326 patients subjected to 1,514 EVLAs. In 1,091 (72.1%) cases the great saphenous vein (GSV) was ablated, in 124 (8.2%) cases the anterior accessory vein (AAV) was treated and in 299 (19.7%) cases the small saphenous vein (SSV) was treated...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/27898181/endovenous-ablation-therapy-laser-or-radiofrequency-or-foam-sclerotherapy-versus-conventional-surgical-repair-for-short-saphenous-varicose-veins
#11
REVIEW
Sharath Chandra Vikram Paravastu, Margaret Horne, P Dominic F Dodd
BACKGROUND: Short (or small) saphenous vein (SSV) varices occur as a result of an incompetent sapheno-popliteal junction, where the SSV joins the popliteal vein, resulting in reflux in the SSV; they account for about 15% of varicose veins. Untreated varicose veins may sometimes lead to ulceration of the leg, which is difficult to manage. Traditionally, treatment was restricted to surgery or conservative management. Since the 1990s, however, a number of minimally invasive techniques have been developed; these do not normally require a general anaesthetic, are day-case procedures with a quicker return to normal activities and avoid the risk of wound infection which may occur following surgery...
29, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27878794/varicosities-of-the-lower-extremity-new-approaches-cosmetic-or-therapeutic-needs
#12
Luca Spinedi, Heiko Uthoff, Sasan Partovi, Daniel Staub
Varicose veins of the lower extremity (VVLE) are a frequently encountered vascular disorder in the general population. The general view that VVLE are a non-serious disease with primarily aesthetic impact is a common misconception, as the disease can have a significant negative impact on generic and disease-specific quality of life. Further, VVLE may be associated with potentially threatening clinical conditions, such as chronic venous ulceration, venous thromboembolism and haemorrhage from ruptured varicose veins...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27853341/effect-of-the-wide-spread-use-of-endovenous-laser-ablation-on-the-treatment-of-varicose-veins-in-japan-a-large-scale-single-institute-study
#13
Masatoshi Jibiki, Tetsuro Miyata, Sachiko Futatsugi, Mitsumasa Iso, Yasutaka Sakanushi
Background and aims: In Japan, stripping under general anesthesia, lumbar anesthesia and tumescent local anesthesia has been used in the treatment of primary varicose veins due to saphenous vein insufficiency. However endovenous laser ablation (EVLA) using a 980 nm diode laser has received National Health Insurance (NHI) coverage in 2011, while EVLA using a 1470 nm diode laser with a radial 2-ring fiber has received coverage in 2014. As a result, the use of EVLA has become widespread in Japan. We herein report on the results of varicose veins treatment at our hospital...
October 1, 2016: Laser Therapy
https://www.readbyqxmd.com/read/27760697/post-operative-benefit-of-compression-therapy-after-endovenous-laser-ablation-for-uncomplicated-varicose-veins-a-randomised-clinical-trial
#14
K Ye, R Wang, J Qin, X Yang, M Yin, X Liu, M Jiang, X Lu
OBJECTIVE: The hypothesis that post-operative short-term compression therapy improves operation related complications in patients with uncomplicated varicose veins after endovenous laser ablation (EVLA) treatment was tested. METHODS: In this randomized trial, patients with uncomplicated varicose veins (C2 according to the CEAP classification) treated with EVLA at a single institution from January 2012 to November 2013 were enrolled. Before EVLA, patients were randomized into two groups based on whether or not (control group) they wore an elastic compression stocking (ECS group) post-operatively...
December 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27738459/treatment-of-primary-varicose-veins-in-japan-japanese-vein-study-xvii
#15
Hirono Satokawa, Takashi Yamaki, Hirohide Iwata, Masahiro Sakata, Norihide Sugano, Toshiya Nishibe, Makoto Mo, Norikazu Yamada, Takehisa Iwai
Purpose: This study aimed at clarifying the changes in treatments for primary varicose veins in Japan. Methods: A questionnaire was mailed to the members of the Japanese Society of Phlebology. The contents of the survey covered the treatment and treatment strategy of varicose vein cases in 2013. The results were examined and compared with the results of previous surveys conducted by the aforesaid society in 1998, 2004 and 2009. Results: Of 36078 patients, 43958 limbs were reported from 201 institutions. Saphenous type was the most common type of varicose veins that developed in patients aged 70-79 years...
2016: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/27738242/american-college-of-phlebology-guidelines-treatment-of-refluxing-accessory-saphenous-veins
#16
REVIEW
Kathleen Gibson, Neil Khilnani, Marlin Schul, Mark Meissner
The American College of Phlebology Guidelines Committee performed a systematic review of the literature regarding the clinical impact and treatment of incompetent accessory saphenous veins. Using an accepted process for guideline developments, we developed a consensus opinion that patients with symptomatic incompetence of the accessory great saphenous veins (anterior and posterior accessory saphenous veins) be treated with endovenous thermal ablation (laser or radiofrequency) or ultrasound-guided foam sclerotherapy to eliminate symptomatology (Recommendation Grade 1C)...
October 13, 2016: Phlebology
https://www.readbyqxmd.com/read/27727418/nya-behandlingar-av-%C3%A3-derbr%C3%A3-ck-med-goda-resultat
#17
Stefan Nydahl
Modern management of varicose veins Chronic venous disease is a common medical condition and occurs in about one-third of the adult population. Reflux, and to a much lesser extent obstruction of the superficial and deep venous systems, generates venous hypertension. The goal of the treatment is to reduce venous hypertension in order to prevent complications, progression of venous disease and to improve patients' quality of life. Today we have a wide spectrum of different treatment options at our disposal. Management is based upon accurate clinical diagnosis and duplex imaging...
October 4, 2016: Läkartidningen
https://www.readbyqxmd.com/read/27681276/the-use-of-transillumination-as-a-rational-approach-to-sclerotherapy-and-endovascular-laser-ablation-of-varices-results-in-the-use-of-an-original-instrument
#18
Marco Apperti, Ermenegildo Furino, Antonio Sellitti, Gennaro Quarto
AIM: To explain the mode of using and the obtained results during EVLA procedures and sclerotherapies with support of Visioven®, a laser transillumination instrument. MATERIALS AND METHODS: 205 patients suffering from Chronic Venous Insufficiency - CEAP-C stage 1-2 enrolled (103 females and 102 males) and divided into two groups. A Group: patients candidate for sclerotherapy; B Group: patients to be subjected to endovascular laser ablation (EVLA). In both groups patients were divided into two sub-groups on the basis of the use of Visioven® or not during the procedure...
2016: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/27681171/complications-and-failure-of-endovenous-laser-ablation-and-radiofrequency-ablation-procedures-in-patients-with-lower-extremity-varicose-veins-in-a-5-year-follow-up
#19
Witold Woźniak, R Krzysztof Mlosek, Piotr Ciostek
INTRODUCTION: Thermal ablation techniques have gradually replaced Babcock procedure in varicose vein treatment. AIM: A comparative quantitative-qualitative analysis of complications and failure of endovenous laser ablation (EVLA) and radiofrequency ablation (RFA) in a 5-year follow-up. MATERIALS AND METHODS: One hundred ten adult participants with varicose veins clinical grade C2 to C6, treated for isolated great saphenous vein (GSV) or small saphenous vein (SSV) insufficiency in a single lower extremity in 2009 to 2010, were enrolled and subdivided into EVLA (n = 56) and RFA (n = 54) groups...
October 2016: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27638994/effect-of-treated-length-in-endovenous-laser-ablation-of-great-saphenous-vein-on-early-outcomes
#20
Sulaiman S Shoab, Danielle Lowry, Alok Tiwari
OBJECTIVE: The aim of this preliminary study was to document the effect of treated great saphenous vein (GSV) length on short-term outcomes using freedom from secondary intervention as a marker. METHODS: Analysis was performed of a prospective database of endovascular laser therapy (EVLT) procedures performed by a single surgeon in an NHS hospital setting using a standardized technique in a series of consecutive ambulatory patients. During a 2-year period, 131 episodes with sufficient data were recorded...
October 2016: Journal of Vascular Surgery. Venous and Lymphatic Disorders
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