Publications by authors named "Gyeong-Sik Jeon"

Background: Transcatheter arterial embolization (TAE) has been widely used as an effective and a safe treatment method and was often used as an alternative to the surgical management, but there are limited studies on the efficacy and the safety for patients undergoing their secondary postpartum hemorrhage (PPH).

Aim: To evaluate the usefulness of TAE for secondary PPH focusing on the angiographic findings.

Methods: We conducted a research from January 2008 to July 2022 on all 83 patients (mean: 32 years, range: 24-43 years) presented with secondary PPH and they were treated with TAE in two university hospitals.

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Background: The reported success rate of uterine artery embolization (UAE) for postpartum hemorrhage (PPH) differs by the cause of bleeding; in some reports, UAE shows less successful results in patients with placenta accreta spectrum (PAS).

Purpose: To evaluate the outcome of UAE for treating PPH associated with PAS.

Material And Methods: From September 2011 to September 2021, 227 patients (mean age = 34.

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Aim: To evaluate the safety and effectiveness of uterine fibroid embolization (UFE) in patients with a scarred uterus caused by a previous myomectomy or cesarean section.

Methods: A total of 140 patients who underwent embolization for symptomatic fibroids were included in this retrospective study. The patients were divided into two groups, those with a history of myomectomy and/or cesarean section (scarred uterus group, n = 56), and those without surgical history involving the uterus (no-scar group, n = 84).

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Objectives: To determine risk factors for catheter survival and complications after image-guided implantation of a totally implanted vascular access device (TIVAD).

Methods: A total of 2883 TIVADs (2735 patients, 63.5±13 years old, 1060 men, 1675 women) implanted under guidance by ultrasound and fluoroscopy in our institution from January 2010 to December 2019 were evaluated retrospectively.

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Background: Transcatheter arterial embolization (TAE) is not common for hemorrhagic complications after gynecologic hysterectomy.

Purpose: To evaluate the effectiveness and safety of TAE for hemorrhage after hysterectomy for gynecologic diseases.

Material And Methods: This is a retrospective, multicenter study, which investigated 11 patients (median age = 45 years) who underwent TAE for hemorrhage after gynecologic hysterectomy between 2004 and 2020.

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Purpose: To evaluate efficacy and safety of transcatheter arterial embolization (TAE) in managing postpartum hemorrhage (PPH) due to genital tract injury after vaginal delivery and to investigate factors associated with outcome of TAE.

Materials And Methods: A retrospective review of 43 women (mean age, 32.6 years) who underwent TAE to manage PPH secondary to genital tract injury after vaginal delivery was performed at a single institution between January 2007 and December 2018.

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Background: Pancreatic arteriovenous malformation (AVM) is a rare disease with a number of different reported treatment methods, but there are as yet no established or definite treatments for the disease.

Case Summary: A 43-year-old man visited the hospital due to periumbilical pain. The patient underwent imaging study and laboratory testing for evaluation of cause.

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Purpose: To characterise (1) the risk factors associated with inferior vena cava (IVC) atresia, (2) the radiographic and clinical presentations of deep vein thrombosis (DVT) in patients with IVC atresia, and (3) the treatment and outcome of DVT in patients with IVC atresia.

Methods: The electronic medical record was systematically reviewed for thrombotic risk factors in patients who presented with lower-extremity DVT (n = 409) at a single centre between 1996 and 2017. Patients with IVC atresia were identified based on imaging and chart review.

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Purpose: To study short-term and long-term outcomes of lower extremity venous stents placed at a single center and to characterize changes in vein diameter achieved by stent placement.

Materials And Methods: A database of all patients who received lower extremity venous stents between 1996 and 2018 revealed 1,094 stents were placed in 406 patients (172 men, 234 women; median age, 49 y) in 513 limbs, including patients with iliocaval stents (9.4% acute thrombosis, 65.

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To evaluate the outcomes and prognostic factors of endovascular management in immature arteriovenous fistula (AVF) for hemodialysis.From April 2007 to September 2017, 54 patients (male:female = 31:23, mean age 65.63 years, range 33-90 years) who underwent endovascular management for the salvage of immature AVF were retrospectively reviewed.

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Duodenal variceal bleeding is a rare but potentially life-threatening complication of portal hypertension. Endoscopic therapy is usually the initial treatment option for bleeding duodenal varices, but it is not always feasible or successful. We present a technique of coil-assisted retrograde transvenous obliteration in a patient with duodenal varices originating from the inferior pancreaticoduodenal vein and draining into the right ovarian vein.

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Radiation-induced venous stenosis is rare, with only a few cases reported in the literature. We report a case of radiation-induced venous stenosis of the bilateral iliac vein after radiation therapy for the treatment of recurrent bladder cancer. The patient was successfully treated using endovascular kissing stents.

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Objective: To evaluate the efficacy and safety of sclerotherapy as the treatment of infected postoperative lymphocele in gynecologic malignancy patients.

Materials And Methods: Percutaneous catheter drainage (PCD) with or without sclerotherapy was performed for postoperative lymphocele in 75 patients from 2002 to 2014. Eighty-eight lymphoceles (43 non-infected as group A, 45 infected as group B) in 75 patients (mean age ± SD; 50.

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Purpose: To determine feasibility of scaled signal intensity (SSI) of uterine fibroids on T2-weighted magnetic resonance (MR) images to predict volume reduction rate (VRR) after uterine fibroid embolization (UFE).

Materials And Methods: In this retrospective study, 66 premenopausal women underwent UFE. Patients underwent follow-up MR imaging 3 months after UFE.

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Branches of the internal iliac artery or ovarian artery are the typical sources of pelvic hemorrhage. The inferior mesenteric artery has been rarely reported as the origin of pelvic bleeding. We present 2 cases of intractable intrapelvic and vaginal bleeding after hysterectomy.

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A 36-year-old primipara woman was referred to the interventional department for management of severe primary post-partum hemorrhage with a vaginal laceration after a normal vaginal delivery. Angiography revealed that the superior rectal branch of the inferior mesenteric artery was one of the origins of persistent vaginal bleeding following embolization of both uterine arteries. The patient was successfully treated by selective embolization without other complications.

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Introduction: To identify reliable CT features and assess the diagnostic performance of 64-multidetector CT (MDCT) in diagnosing non-traumatic gastroduodenal perforation (GDP).

Methods: We retrospectively reviewed 136 CT scans of patients with surgically proven non-traumatic gastrointestinal perforation during 7 years. 92 patients had GDP and 44 patients had other sites of perforation.

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Objective: Our purpose was to evaluate imaging findings of breast cancers according to the dominant stroma type by using kinetic curve analysis and model-based perfusion parameters from dynamic contrast-enhanced magnetic resonance imaging.

Methods: From March 2011 to September 2011, 64 cancers in 64 patients were included for data analysis. Kinetic curve analysis and model based perfusion parameters (Ktrans, Kep and Ve) were obtained using dynamic contrast-enhanced magnetic resonance imaging and post-processing software.

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Catamenial hemoptysis is a rare condition, characterized by recurrent hemoptysis associated with the presence of intrapulmonary or endobronchial endometrial tissue. Therapeutic strategies proposed for intrapulmonary endometriosis with catamenial hemoptysis consist of medical treatments and surgery. Bronchial artery embolization is a well-established modality in the management of massive or recurrent hemoptysis, but has seldom been used for the treatment of catamenial hemoptysis.

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Purpose: To evaluate the effectiveness, safety, and complications of uterine artery embolization (UAE) in women with large fibroid tumors.

Materials And Methods: From January 2005 to February 2011, 323 patients underwent UAE for symptomatic uterine leiomyomas without adenomyosis and were included in this study. Patients were divided into two groups: those with a large tumor burden (group 1; n = 63), defined as a dominant tumor with a longest axis of at least 10 cm or a uterine volume of at least 700 cm(3); and the control group (group 2; n = 260).

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Objective: To evaluate pelvic artery embolisation (PAE) in the emergency management of intractable postpartum haemorrhage (PPH) associated with placenta accreta (PA).

Methods: Forty such patients (PAE for PPH/PA) were retrospectively reviewed. Medical records were reviewed regarding the delivery and PAE procedure.

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Purpose: To evaluate the efficacy and safety of transcatheter arterial embolization of the pelvic arteries for the treatment of postpartum hemorrhage (PPH) associated with cesarean section compared with vaginal delivery.

Materials And Methods: A retrospective analysis of 176 patients undergoing transcatheter arterial embolization of the pelvic arteries for PPH from January 2006 through August 2011 was conducted at two institutions. The mean patient age was 33.

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Background/aims: Various strategies to expand the ablation zone have been attempted using hepatic radiofrequency ablation (RFA). The optimal strategy, however, is unknown. We compared hepatic RFA with an internally cooled wet (ICW) electrode and vascular inflow occlusion.

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Malignant airway obstruction and hemoptysis are common in lung cancer patients. Recently, airway stent is commonly used to preserve airway in malignant airway obstruction. Hemoptysis can be managed through various methods including conservative treatment, endobronchial tamponade, bronchoscopic intervention, embolization and surgery.

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