#1
JOURNAL ARTICLE
Abdul Razaque, Muhammad K Shazlee, Saqib Qamar, Syed Muhammad Shahnawaz Hyder, Hatem Adel
Introduction Chronic venous insufficiency is a common condition that leads to the development of incompetent great or short saphenous veins (GSV or SSV) resulting in varicose vein development. Conservative management is initially employed for its treatment; however, the varicosities that do not respond to conservative management may require intervention by surgery or endovenous routes. Radiofrequency ablation (RFA) and mechanochemical ablation (MOCA) are the two most common endovascular techniques available for the management of incompetent GSV or SSV...
September 2023: Curēus
#2
JOURNAL ARTICLE
Tamana Alozai, Yee Lai Lam, Michiel A Schreve, André Aea de Smet, Anco C Vahl, Liesbeth C Terlouw-Punt, Çağdaş Ünlü, Cees Ha Wittens
OBJECTIVE: This study aimed to compare patient-reported outcomes after technical success (TS) and technical failure (TF) in treating great saphenous vein incompetence (GSV) with ClariVein. METHODS: A subanalysis of a previous trial was conducted on symptomatic GSV incompetence patients who received ClariVein treatment with 2% or 3% polidocanol (POL) and were followed for 6 months. Blinding was implemented for observers and patients, and data from both POL groups were combined...
July 12, 2023: Phlebology
#3
RANDOMIZED CONTROLLED TRIAL
Yee Lai Lam, Tamana Alozai, Michiel A Schreve, André A E A de Smet, Anco C Vahl, Ivo Nagtzaam, James A Lawson, Fred H M Nieman, Cees H A Wittens
BACKGROUND: The purpose of the present study was to identify the ideal polidocanol (POL) concentration for mechanochemical ablation (MOCA) of the great saphenous vein (GSV) using the ClariVein system (Merit Medical, South Jordan, Utah). METHODS: We performed a multicenter, randomized, controlled, single-blind trial with a follow-up period of 6 months. Patients with symptomatic primary truncal GSV incompetence were randomized to MOCA + 2% POL liquid (2% group) or MOCA + 3% POL liquid (3% group)...
July 2022: Journal of Vascular Surgery. Venous and Lymphatic Disorders
#4
JOURNAL ARTICLE
Luca Apruzzi, Victor Bilman, Vincenzo Ardita, Nicola Favia, Concetta Saracino, Roberto Chiesa, Domenico Baccellieri
OBJECTIVE: to compare the outcomes of mechanochemical ablation (MOCA) versus saphenopopliteal junction ligation and stripping (OS) for symptomatic small saphenous vein (SSV) insufficiency. METHODS: This is a retrospective study including symptomatic SSV patients treated with MOCA using the ClariVein catheter (Merit Medical, South Jordan, Utah, USA) or OS from 2015 to 2019. RESULTS: A total of 60 limbs (73.3% women, mean age 54.7 ± 14...
February 2022: Phlebology
#5
JOURNAL ARTICLE
Maya Avrahami, Daniel Silverberg, Steve Elias, Ralf Kolvenbach, Noa Shafutinski, Galit Sivak, Michael Tal, Ram Avrahami
PURPOSE: To evaluate the use of infra-malleolar access for endovenous ablation when treating advanced venous disease with non-thermal non-tumescent (NTNT) techniques. METHODS: A single center retrospective study of 109 patients, with advanced venous disease, treated using infra-malleolar access between May 2018 and March 2020. NTNT techniques included ClariVein (MERIT MEDICAL, Utah, USA) and ScleroSafe (VVT Medical, Israel).Outcomes measured were post procedure pain, leg edema, ulcer healing and recurrence rates and venous insufficiency recurrence...
August 2, 2021: Journal of Vascular Surgery. Venous and Lymphatic Disorders
#6
JOURNAL ARTICLE
Bo Yang, Qiang-Qiang Nie, Xue-Qiang Fan, Jian-Bin Zhang, Peng Liu
BACKGROUND: The endovascular technique of mechanochemical ablation (MOCA) has become popular in treating patients with saphenous reflux. We reported the histopathological findings in human ex-vivo incompetent great saphenous veins following treatment with saline, polidocanol, mechanical ablation and MOCA using ClariVein device. METHODS: Twenty-four vein GSV specimens were obtained via traditional surgery and treated with four methods: Group A: 0.9% normal saline (NS); Group B: 3% polidocanol; Group C: mechanical ablation + 0...
April 2022: Vascular
#7
JOURNAL ARTICLE
Yong Wonn Kwon, Sang Woo Park, Jin Ho Hwang, Hyemin Jang, Jeeyoung Min, Jae Joon Hwang, Song Am Lee, Jun Seok Kim, Hyun Keun Chee
OBJECTIVE: The aim of this study was to investigate the occurrence of skin complications following mechanochemical ablation (MOCA) with the ClariVein device for incompetent great saphenous veins (GSVs) and to compare the results in terms of target vein characteristics, particularly the presence of an epifascial GSV tributary. METHODS: A single-center, retrospective study was performed. We reviewed a total of 33 limbs of 32 patients with GSV insufficiency who underwent MOCA with the ClariVein device from December 2017 to February 2020...
November 10, 2020: Journal of Vascular Surgery. Venous and Lymphatic Disorders
#8
JOURNAL ARTICLE
Gonzalo Lambert, Darío Teplisky, Mariela Cabezas, Ioná Szhafir, Mauricio Silva, Matías Garriga, Alejandro Oliva, Sergio Sierre
PURPOSE: To evaluate feasibility, safety, and results of endovenous mechanochemical ablation (MOCA) for treatment of persistent embryonic and dysplastic veins in pediatric patients with Klippel-Trénaunay syndrome (KTS). MATERIALS AND METHODS: Thirteen MOCA procedures were performed in 11 patients (age range, 4-16 years) with KTS and symptomatic persistent embryonic or dysplastic veins during a 24-month period. All patients were evaluated with color Doppler (CD) ultrasound (US), contrast-enhanced MR imaging, and venography to assess the anatomy of the target vessels and patency of the deep venous system...
January 2021: Journal of Vascular and Interventional Radiology: JVIR
#9
JOURNAL ARTICLE
Insoo Park, Daehwan Kim
Mechanochemical ablation (MOCA) is a non-thermal, non-tumescent technique for the treatment of incompetent saphenous vein. It is sometimes difficult to maintain consistency when simultaneously implementing wire rotation, sclerosant injection, and wire pullback. Here, we report a simple technique for achieving constant injection during MOCA with the help of a syringe pump; thus, the operator can focus on wire pullback only with convenience and consistency.
September 30, 2020: Vascular Specialist International
#10
JOURNAL ARTICLE
Domenico Baccellieri, Luca Apruzzi, Vincenzo Ardita, Nicola Favia, Concetta Saracino, Niccolò Carta, Germano Melissano, Roberto Chiesa
OBJECTIVE: The aim of the present study was to investigate the early results of mechanochemical ablation (MOCA) for the treatment of small saphenous vein (SSV) incompetence. METHODS: We performed a single-center, retrospective analysis of a prospectively collected database of 60 patients treated with MOCA for single-axis SSV incompetence. All procedures were performed with the patient under local anesthesia using the ClariVein catheter (Merit Medical, South Jordan, Utah) combined with 2% polidocanol and, where appropriate, additional microphlebectomy...
May 2021: Journal of Vascular Surgery. Venous and Lymphatic Disorders
#11
JOURNAL ARTICLE
Vicente Mosquera-Rey, José A Del Castro Madrazo, María Ángeles M Herrero, Rubén A Cordeu, Ernesto A Azofra, Manuel A Pérez
OBJECTIVE: the aim of this study was to assess the results of mechanochemical endovenous ablation either in the primary or recurrent saphenous vein insufficiency, including only patients with veno-venous shunt type III. METHODS: retrospective analysis of a prospective study of patients with symptomatic chronic venous insufficiency who underwent ClariVein® technique. A total of 134 saphenous veins were included between August 2017 and August 2018. Follow-up was performed by Duplex ultrasound at 1, 6 and 12 months...
August 26, 2020: Phlebology
#12
JOURNAL ARTICLE
Mattia Mirandola, Andrea Griso, Bruno Migliara, Tania Francesca Cappellari, Francesca Giovannini, Marcello Lino
OBJECTIVE: Mechanochemical endovenous ablation is a nonthermal method to ablate superficial incompetent veins. The aim of this paper was to assess short-term complications and 5-year follow-up outcomes. METHODS: This is a retrospective single-center study of data collected prospectively. We treated, in an outpatient setting, 395 primary, symptomatic, unilateral, incompetent varicose saphenous veins. No patients were treated bilaterally in the same session. The majority were great saphenous veins (92...
November 2020: Journal of Vascular Surgery. Venous and Lymphatic Disorders
#13
RANDOMIZED CONTROLLED TRIAL
Abduraheem Hussein Mohamed, Clement Leung, Tom Wallace, George Smith, Daniel Carradice, Ian Chetter
OBJECTIVE: This RCT compares the clinical, technical and quality of life outcomes after EVLA and MOCA. SUMMARY OF BACKGROUND DATA: Thermal ablation is the current mainstay treatment for SVI. Newer nonthermal methods of treatment have been developed which do not require the use of tumescent anesthesia. The potential advantages of these newer methods should be tested in RCTs to ascertain their role in the future treatments of SVI. METHODS: This single-center RCT enrolled patients with symptomatic, unilateral, single-axis SVI...
June 1, 2021: Annals of Surgery
#14
RANDOMIZED CONTROLLED TRIAL
Doireann P Joyce, Stewart R Walsh, Charyl J Q Yap, Tze T Chong, Tjun Y Tang
BACKGROUND: Endovenous treatment of varicose veins has increased in popularity over the last decade. There remains, however, a degree of uncertainty regarding the role of compression bandaging or hosiery following this intervention. The National Institute for Clinical Excellence Guideline Development Group has advocated further research to evaluate the clinical and cost-effectiveness of this post-procedure intervention. In addition to this, the duration of compression bandaging also warrants clarification...
December 5, 2019: Trials
#15
JOURNAL ARTICLE
Abduraheem H Mohamed, Clement Leung, Tom Wallace, Sean Pymer, Amy Harwood, George Smith, Daniel Carradice, Ian C Chetter
No abstract text is available yet for this article.
August 2019: Phlebology
#16
JOURNAL ARTICLE
Shao N Khor, Jiang Lei, Jia W Kam, Steven Kum, Yih K Tan, Tjun Y Tang
OBJECTIVES: This study assessed the effectiveness and patient experience of ClariVein for varicose veins and chronic venous insufficiency (CVI) in a multi-ethnic Asian population from Singapore. METHODS: A total of 121 patients underwent mechano-chemical ablation. Patients were reviewed at an interval of one week, and at 3, 6 and 12 months post procedure and underwent Duplex ultrasound with patient satisfaction assessment. RESULTS: At three months of follow-up, the great saphenous vein and short saphenous vein occlusion rates were 90...
December 2018: Phlebology
#17
LETTER
Marianne E Witte, Clark J Zeebregts, Gert Jan de Borst, Michel Reijnen, Doeke Boersma
No abstract text is available yet for this article.
December 2017: Phlebology
#18
JOURNAL ARTICLE
Darryl Lim, Derek C Ho, Lionel Chen, Michiel A Schreve, Yih Kai Tan, Steven Kum
INTRODUCTION: The aim of this prospectively collected case series is to demonstrate a novel technique of using the ClariVein® catheter for pharmacomechanical thrombolysis of thrombosed hemodialysis grafts. METHODS: The analysis comprised 11 procedures in 9 patients from 1 July to 31 December 2016 in which the ClariVein catheter was used in combination with urokinase. Demographic data, procedural data, technical and clinical success rates, and complications were evaluated...
November 17, 2017: Journal of Vascular Access
#19
LETTER
K Saravana, T Y Tang
No abstract text is available yet for this article.
December 2017: Phlebology
#20
COMPARATIVE STUDY
Mark S Whiteley, Scott J Dos Santos, Christopher T Lee, Jian-Mei Li
BACKGROUND: Nonthermal, tumescentless devices are the next generation of minimally invasive devices to treat varicose veins. We aimed to investigate the effects of mechanochemical ablation (MOCA) using ClariVein (Vascular Insights, Quincy, Mass) on ex vivo great saphenous vein with histology and immunofluorescent staining. METHODS: Extrafascial great saphenous veins were harvested during surgery for varicose veins and were treated ex vivo for 10 to 11 minutes with either liquid sclerotherapy or the use of ClariVein, with and without 3% sodium tetradecyl sulfate...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
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