Publications by authors named "Je Hwan Won"

Objective: To evaluate the safety and clinical outcomes of the Passeo-18 Lux drug-coated balloon (DCB) in endovascular revascularization procedures under real-world conditions in a Korean population with atherosclerotic disease of the infrainguinal arteries, including below-the-knee (BTK) arteries.

Materials And Methods: Eight institutions in the Republic of Korea participated in this prospective, multicenter, single-arm, post-market surveillance study. Two hundred patients with Rutherford class 2-5 peripheral arterial disease and infrainguinal lesions suitable for endovascular treatment were competitively enrolled.

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Purpose: This experimental study was designed to compare radial forces between the central portion and both ends of balloon catheters when dilating stenosis.

Materials And Methods: Three balloon catheters of 6 and 8 mm in diameter and of variable length were tested: Mustang, Conquest, and Genoss PTA. Cylindrical modules to position balloon catheters and install the measuring tip during radial force measurements were made using a 3D printer.

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Article Synopsis
  • Recent advancements in medical devices and techniques have led to an increase in the use of endovascular treatments, such as stent-graft placement and embolization.
  • Endovascular procedures offer a minimally invasive option, making them advantageous for cases like axillo-subclavian or iliac artery injuries, as well as for managing active bleeding and other vascular complications without significant risks.
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Objective: To assess lymphangiography findings and outcome of lymphatic embolisation to manage chyle leak after neck surgery.

Methods: Consecutive cases of lymphangiography performed between April 2018 and May 2022 for management of chyle leaks related to neck surgery were retrospectively reviewed. Lymphangiography findings, techniques, and outcomes were analysed.

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Article Synopsis
  • - The National Kidney Foundation recommends using arteriovenous fistulas for long-term hemodialysis in patients with chronic kidney disease, prioritizing their creation over other access methods like grafts or catheters.
  • - Despite the initial success of the Fistula First Breakthrough Initiative in increasing fistula use, many patients experience immature fistulas that fail to develop properly.
  • - Researchers are exploring endovascular treatments, such as balloon angioplasty and accessory vein embolization, to address issues like stenoses and improve the maturation of arteriovenous fistulas.
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Purpose: To evaluate the circuit patency after nitinol bare-metal stent (BMS) placement according to the type of access and location of the stent in dysfunctional hemodialysis access.

Materials And Methods: Between January 2017 and December 2019, 159 patients (mean age, 64.1 ± 13.

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Purpose: To assess outcome and predictors of outcome after lymphatic embolization (LE) for early postoperative lymphatic leak after pelvic surgery.

Material And Methods: Lymphangiography (LG) procedures performed between May 2015 and February 2020 for postoperative intraperitoneal lymphatic leaks after pelvic surgery were reviewed. Treatment indication was lymphatic drainage of >500 mL/d persisting for >1 week.

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Objectives: The long-term data on the use of drug-coated balloons (DCBs) for femoropopliteal atherosclerotic lesions in the real-world setting are limited, even more so for racially and geographically distinct populations. The present analysis reports the 5-year safety and effectiveness outcomes of a DCB in the Asian subset of the prospective, real-world IN.PACT Global Study.

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Atherectomy has become a promising treatment option for peripheral artery disease caused by diabetes mellitus or end-stage renal disease. Atherectomy refers to the removal of atheromatous tissue by mechanical method, resulting in an enlarged lumen of the treated blood vessel. Based on this method, the term is limited to the percutaneous minimally invasive approach, and there are currently two types of atherectomy devices available in Korea.

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The prevalence of lower extremity disease is increasing with age. With recent technological advancements, endovascular treatment is being performed more frequently. The treatment goal of intermittent claudication is to improve walking and reduce claudication.

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The goal of this study was to evaluate radiologic and clinical factors associated with overall survival of advanced hepatocellular carcinoma treated with hepatic arterial infusion chemotherapy (HAIC). This single-center retrospective study included 180 patients with advanced hepatocellular carcinoma who underwent HAIC with a 5-fluorouracil (250-500 mg/m for 5 hours) plus cisplatin (10-20 mg/m for 1-2 hours) regimen via an implantable port system. Survival curves were generated by the Kaplan-Meier method and compared by log-rank tests.

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Objectives: The aim of this study was to assess the benefit of adding arterial subtraction images from computed tomography (CT) to the Liver Imaging Reporting and Data System (LI-RADS) v2018 treatment response (LR-TR) categorization in patients treated with transcatheter arterial chemoembolization (TACE) for hepatocellular carcinoma (HCC).

Materials And Methods: This retrospective study included 115 patients with 151 HCCs treated by TACE using an emulsion of doxorubicin and iodized oil who underwent multiphasic CT protocol that additionally generated arterial subtraction images based on nonrigid anatomic correction algorithm. Of 151 HCCs, 67 (44.

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Purpose: To evaluate the efficacy and safety of the ultrasound-guided supraclavicular brachial plexus block (BPB) during angioplasty of dysfunctional arteriovenous access.

Materials And Methods: Eighty study participants with dysfunctional arteriovenous access were enrolled in this prospective, randomized clinical trial between November 2016 and February 2018. Eighty patients were randomized to either the ultrasound-guided supraclavicular BPB group (mean age ± standard deviation [SD], 65.

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Biliary complication (BC) is still regarded as the Achilles' heel of a living donor liver transplantation (LDLT). This study aims to evaluate the longterm outcomes of the duct-to-duct (DD) biliary reconstruction using 7-0 suture and to identify the risk factors of BCs after LDLTs. Data of 140 LDLTs between 2006 and 2015 were analyzed.

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The rendezvous approach is a salvage technique after failure of endoscopic retrograde cholangiography (ERC). In certain circumstances, percutaneous-endoscopic rendezvous (PE-RV) is preferred, and endoscopic ultrasound-guided rendezvous (EUS-RV) is difficult to perform. We aimed to evaluate PE-RV outcomes, describe the PE-RV techniques, and identify potential indications for PE-RV over EUS-RV.

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Background: We investigated an association between the levels of plasma microRNA (miRNA)-21, -26a, and -29a-3p and treatment outcomes following transarterial chemoembolization (TACE) in patients with hepatocellular carcinoma (HCC).

Methods: A total of 198 patients with TACE-treated HCC were followed up for TACE refractoriness and liver transplantation (LT)-free survival. Pretreatment plasma miRNA-21, -26a, and -29a-3p levels were measured using quantitative real-time polymerase chain reaction.

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Background: This study aimed to demonstrate the safety and reliability of combined preoperative angioplasty and free flap transfer in patients with peripheral arterial occlusive disease (PAOD) by analyzing the surgical outcomes.

Methods: Between October 2011 and October 2015, patients who had undergone lower extremity angiography and subsequent free flap transfer were retrospectively reviewed. Data collected included demographics, perioperative data, and postoperative outcomes.

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Chylous ascites occurs as a result of lymphatic leakage, which contains high concentration of triglycerides. The leakage is caused by various benign or malignant etiologies ranging from congenital lymphatic abnormality to trauma. Lymphangiography has been shown to be effective in the diagnosis of lymphatic leakage and has also been reported to have therapeutic outcome.

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Background Percutaneous biopsy is a widely-accepted technique for acquiring histologic samples of the liver. When there is concern for bleeding, plugged percutaneous biopsy (PPB) may be performed, which involves embolization of the biopsy tract. Purpose To evaluate the efficacy and safety of PPB of the liver in patients suspected to have graft rejection after living-donor liver transplantation (LDLT).

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Purpose: To assess the feasibility and outcome of transjugular access for endovascular treatment of immature arteriovenous fistulae (AVFs).

Materials And Methods: Between August 2013 and January 2016, 90 patients (mean age, 64.5 y ± 12.

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Purpose: To analyze imaging findings of lymphatic leakage associated with surgical lymph node dissection on lymphangiography and assess the outcome of lymphatic embolization.

Materials And Methods: This retrospective study comprised 21 consecutive patients who were referred for lymphatic intervention between March 2014 and April 2015 due to postsurgical lymphatic leaks. Lymphangiography was performed through inguinal lymph nodes to identify the leak.

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Purpose: To retrospectively assess the outcome of lymphatic embolization in the treatment of pelvic lymphoceles.

Materials And Methods: From July 2014 to December 2015, a retrospective analysis was performed in 5 consecutive female patients (mean age, 54.6 y; range, 45-65 y) who underwent lymphangiography for the management of symptomatic pelvic lymphoceles that developed after gynecologic surgery.

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Background And Aim: Circulating microRNA (miR)-122 has recently been investigated as a potential biomarker of various hepatic diseases, such as chronic hepatitis and hepatocellular carcinoma (HCC). We investigated the association between plasma miR-122 levels and the treatment outcomes following transarterial chemoembolization (TACE) in HCC patients.

Methods: We included 177 HCC patients treated with TACE in the study; TACE refractoriness and liver transplantation-free survival were evaluated during follow up.

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Objective: To evaluate risk factors for massive lymphatic ascites after laparoscopic retroperitoneal lymphadenectomy in gynecologic cancer and the feasibility of treatments using intranodal lymphangiography (INLAG) with glue embolization.

Methods: A retrospective analysis of 234 patients with gynecologic cancer who received laparoscopic retroperitonal lymphadenectomy between April 2006 and November 2015 was done. In June 2014, INLAG with glue embolization was initiated to manage massive lymphatic ascites.

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