Inwook Joo

Objective: We wanted to valuate the mid-term therapeutic results of percutaneous transhepatic balloon angioplasty for portal vein stenosis after liver transplantation. Materials and Methods: From May 1996 to Feb 2005, 420 patients underwent liver transplantation. Percutaneous transhepatic angioplasty of the portal vein was attempted in six patients. The patients presented with the clinical signs and symptoms of portal venous hypertension or they were identified by surveillance doppler ultrasonog

Objective: To assess retrospectively the treatment results of ethanol embolization of peripheral arteriovenous malformations (AVMs) with a dominant outflow vein (DOV). Materials and Methods: Nineteen patients who had peripheral AVMs with a DOV were enrolled in this study (mean age, 29.7 years; range, 15 42 years). Fifty-one ethanol embolizations (mean, 2.7; range, 1 8) were performed by direct puncture (n = 29), the transarterial approach (n = 13), the transvenous approach (n = 5), or a combinat

Objective: We wanted to evaluate the short-term effects of balloon-occluded retrograde transvenous obliteration (BRTO) for treating gastric variceal bleeding, in terms of the portal hypertensive changes, by comparing CT scans. Materials and Methods: We enrolled 27 patients who underwent BRTO for gastric variceal bleeding and they had CT scans performed just before and after BRTO. The pre- and post-procedural CT scans were retrospectively compared by two radiologists working in consensus to evalu

Objective: To evaluate mid-term imaging, clinical follow-up, and restenosis rates from patients that had undergone percutaneous transluminal renal artery angioplasty (PTRA) for symptomatic renal artery fibromuscular dysplasia (FMD). Materials and Methods: Between March 1999 and July 2006, 16 consecutive renal artery FMD patients underwent PTRA for poorly controlled hypertension. The patients were enrolled into this retrospective study after receiving 19 primary and four secondary PTRAs in 19 ren

Objective: We wanted to evaluate the therapeutic efficacy of the percutaneous balloon dilatation and large profile catheter maintenance method for the management of patients with anastomotic biliary strictures following liver transplant. Materials and Methods: From May 1999 to June 2003, 12 patients with symptomatic benign biliary stricture complicated by liver transplantation were treated with the percutaneous balloon dilatation and large profile catheter maintenance method (1 6 months). The pa

Objective: 1) To evaluate the mid-term efficacy and safety of a permanent nitinol inferior vena cava (IVC) filter; 2) to evaluate filter effectiveness, filter stability and caval occlusion. Materials and Methods: A prospective evaluation of the TrapEase IVC filter was performed on 42 patients (eight men, 34 women) ranging in age from 22 to 78 years (mean age 66 years). All patients were ill with a high risk of pulmonary embolism (PE). Indications for filter placement were: 1) deep vein thrombosi

Objective: We retrospectively assessed the results of performing ethanol embolization for pelvis arteriovenous malformations (AVMs). Materials and Methods: During the past 10 years, eight patients (8 females, age range: 27 52 years) with AVMs in the pelvic wall (n = 3) and uterus (n = 5) underwent staged ethanol embolizations (range: 1 5, mean: 2.5) under general anesthesia. Ethanol embolization was performed by the use of the transcatheter and/or direct puncture techniques. Clinical follow-up w

A case of primary adenosquamous carcinoma of the liver is reported. A large cystic mass with irregrlar enhancing wall was seen in the left lobe of the liver ; multiple hepatic cysts and metastatic nodules were scattered in both lobes. Sonoguided needle biopsy was performed and onhistopathology, adenosquamous carcinoma was diagnosed. The radiologic and pathologic relationships of this unusual neoplasm are discussed.

Objective: To present our experience with subintimal angioplasty (SA) for treatment of chronic lower limb ischemia (CLLI) and to assess its effectiveness and durability. Materials and Methods: From April 2003 through June 2005, we treated 40 limbs in 36 patients with CLLI by SA. Balloons with or without secondary stent placement appropriate in size to the occluded arteries were used for SA of all lesions, except for iliac lesions where primary stent placement was done. The patients were followed

목적: 우측 내경 정맥을 통하여 피하 터널식 중심정맥도관을 삽입한 경우 시술로 인한 합병증과 장기추적 결과를 알아보고자 하였다. 대상과 방법: 2001년 6월에서 2002년 5월 사이에 우측 내경 정맥을 통해 Hickman 도관을 삽입한 654명, 670예를 대상으로 시술과 관련된 합병증을 조사하고 2002년 7월까지의 추적결과를 분석하였다. 결과: 670예 중 669예(99.9%)에서 성공적으로 삽입했고 시술과 관련된 초기 합병증은 8예(1.2%) (기흉 3예, 조기위치 변위 1예, 공기색전증 1예, 도관 손상 1예, 도관 꺾임 1예 및 기정맥에 삽입된 1예 등)였다. Hickman 도관의 삽입기간은 1-407일(평균 107.1일)이었다. 추적기간 중 416예에서 Hickman 도관을 제거하였고 이 중 치료의 종료에 의한 경우가 334예, 환자의 치료 거부나 치료약제의 변경 등으로 인한 경우가 16예, 도관 관련 합병증에 의한 경우가 53예, 기타 13예였다. 후기 합병증 53예(

Objective: To determine the efficacy and outcome of percutaneous treatment in restoring the function of failed native arteriovenous fistulas (AVFs) where pulse-spray pharmacomechanical thrombolysis was used as the primary mode of therapy. Materials and Methods: From June 2001 to July 2005, 14 patients who had thrombosis of native AVFs underwent percutaneous restoration following 20 episodes of thrombosis. These included 6 repeated episodes in one forearm AVF and two episodes in another forearm A

Objective: The study aimed to describe portal stenting for postoperative portal occlusion with delayed (≥ 3 months) variceal bleeding in the afferent jejunal loop. Materials and Methods: Eleven consecutive patients (age range, 2–79 years; eight men and three women) who underwent portal stenting between April 2009 and December 2015 were included in the study. Preoperative medical history and the postoperative clinical course were reviewed. Characteristics of portal occlusion and details of proced

목적: 영구 혈액투석 경로 기능부전의 중재적 치료로 경피적 혈관성형술과 유로키나제를 이용한 맥동살포법에 의한 혈전용해술의 유효성을 평가하고 중재적 치료 전후 개통률에 영향을 주는 요인을 분석하였다. 대상과 방법: 1995년에서 2001년까지 혈액투석 경로의 기능부전으로 의뢰된 105예를 중재적 치료를 하였다. 38예는 인공 동정맥루이고 67예의 동정맥 이식편이었다. 53예는 경피적 혈관성형술 만을 시도했으며 47예는 유로키나제를 이용한 맥동살포 혈전용해술과 혈관성형술을 시도하였다. 중재적 시술의 성공률과 장기 개통률을 평가하였다. 환자의 나이, 성별, 당뇨병의 유무, 혈액투석 경로의 위치, 동정맥 이식편의 종류, 동정맥 이식편의 배출 정맥, 중심정맥의 협착 유무, 잔존협착의 정도, 중재적 시술 방법에 따라 개통률의 차이를 평가하여 중재적 시술에 영향을 주는 요인을 분석하였다. 결과: 혈액투석 경로의 기능부전에 대한 중재적 치료의 성공률은 83.8%(88/105)였다. 전체적인 일차