곽정원 교수

BACKGROUND: For patients with malignant ureteral obstruction or stricture who require long-term internal drainage, plastic double-J stents (DJ stents) represent the mainstay of therapeutic strategies. DJ stents should be replaced at least once every 6 months to avoid infection or obstruction. Although DJ stents are generally replaced under cystoscopy, successful fluoroscopy-guided retrograde replacement of DJ stents in the interventional suite has been described in the literature. METHODS: Betwe

Purpose: Suture-mediated hemostasis device takes a long time to train and have limitations in finding appropriate compression point depending on the tactile sense of the hands. If the appropriate compression point is determined using ultrasound and the instrument is used under ultrasound guidance, it is expected to reduce the technical failure and additional manual compression. Materials and methods: This retrospective study included 104 patients in whom the ProGlide vascular closure device (Abb

A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ to K-K+pi+, D0 to K-K+ and D0 to pi-pi+. We have measured the following CP asymmetry parameters: A_CP(K-K+pi+) = +0.006 +/- 0.011 +/- 0.005, A_CP(K-K+) = -0.001 +/- 0.022 +/- 0.015 and A_CP(pi-pi+) = +0.048 +/- 0.039 +/- 0.025 where the first error is statistical and the second error is systematic. These asymmetri

Abstract Background: For patients with malignant ureteral obstruction or stricture who require long-term internal drainage, plastic double-J stents represent the mainstay of therapeutic strategies.DJ stents should be replaced at least once every 6 months to avoid infection or obstruction. Although DJ stents are generally replaced under cystoscopy, successful fluoroscopy-guided retrograde replacement of DJ stents in the interventional suite has been described in the literature.Methods: Between Ap

BACKGROUND/AIMS: We retrospectively compared the effect of endoscopic variceal obturation (EVO) and retrograde transvenous obliteration (RTO) in acute cardiofundal variceal bleeding. METHODS: Patients with acute cardiofundal variceal bleeding treated with EVO or RTO at two hospitals were included. RESULTS: Ninety patients treated with EVO and 86 treated with RTO were analyzed. The mean model for end-stage liver disease score was significantly higher in EVO group than in RTO group (13.5 vs. 11.7,

The subintimal arterial flossing with antegrade-retrograde intervention (SAFARI) technique is reportedly effective in severe peripheral vascular disease that cannot be treated with standard endovascular techniques including subintimal angioplasty. In this report, we used a target balloon with the Outback catheter to recanalize a thrombosed bypass graft that could not be treated successfully with SAFARI.

PURPOSE: To evaluate the efficacy and outcome of the transjugular approach in endovascular recanalization of a thrombosed straight arteriovenous graft (AVG) compared to those of the direct hemodialysis access approach (conventional approach). MATERIALS AND METHODS: We retrospectively assessed patients who underwent aspiration thrombectomy and percutaneous transluminal angioplasty for thrombosed straight AVG performed at a single institution between October 2006 and October 2021. A total of 138 t

Background: This study aimed to assess the safety and feasibility of a 3-month flushing interval for totally implantable venous access ports (TIVAPs), particularly regarding intraluminal clot formation. Methods: Between May 2017 and September 2018, we established a single-center cohort of 151 patients who were referred for TIVAP removal and categorized them into three flushing-interval groups: A (⩽1 month), B (1–2 months), and C (2–3 months). Odds ratios (OR) with 95% confidence intervals (CI) w

Abstract Background/Aims: We compared the efficacy of endoscopic variceal obturation (EVO) and retrograde transvenous obliteration (RTO) in acute cardiofundal variceal bleeding. Methods: Patients with acute cardiofundal variceal bleeding treated with EVO or RTO at two academic hospitals were included. Results: Ninety patients treated with EVO and 86 treated with RTO were analyzed. The mean model for end-stage liver disease score was significantly higher in EVO group than in RTO group (13.5 vs. 1

16568 Background: We retrospectively reviewed our experience with concurrent chemoradiotherapy (CCRT) using high-dose-rate intracavitary brachytherapy (HDR-ICBT) to assess its feasibility and efficacy in the treatment of patients with uterine cervical cancer. Methods: A total of 88 patients with stage IB2-IVa cervical cancer treated with CCRT using HDR-ICBT were analyzed. External beam radiotherapy (EBRT) with 45 Gy/25 fractions followed by HDR-ICBT with 28 Gy/8 fractions to point A was performe

16582 Background: Cisplatin-containing concurrent chemoradiotherapy (CCRT) with brachytherapy is the standard treatment for bulky (above stage II) and pelvic lymph node positive cervical cancer. In this study, we evaluated the efficacy and the feasibility for CCRT using high-dose-rate intracavitary brachytherapy (HDR-ICRT) in the treatment of patients with locally advanced cervical cancer. Methods: A total of 33 patients with stage III or IVa and pelvic lymph node positive cervical cancer treate