Ho-Seong Han

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BACKGROUND We investigated the reversibility of liver fibrosis induced with a CCl(4) injection and the role of stem cells in reversing the hepatic injury. Furthermore, the most effective cell fraction among bone marrow cells (BMCs) in the repair process was analysed. METHODS C57BL/6 mice were divided into four groups after 5 weeks of injection of CCl(4) :(More)
Application of laparoscopy-assisted distal gastrectomy (LADG) for early gastric cancer (EGC) is still controversial because of scant evidence of long-term safety and feasibility. We evaluated the long-term outcome of LADG compared with conventional open distal gastrectomy (ODG) for EGC. Between March 1999 and July 2006, 106 patients underwent LADG and 105(More)
BACKGROUND Laparoscopic liver resection is usually limited to the anterolateral segments of the liver (AL; Segments II, III, V, VI, and the inferior part of IV). We evaluated the feasibility of laparoscopic liver resection in the posterosuperior segments (PS; Segments I, VII, VIII, and the superior part of IV). METHOD We analyzed retrospectively the(More)
PURPOSE The aim of this study was to evaluate the role of preoperative sonography in predicting technical difficulties during laparoscopic cholecystectomy in patients with acute cholecystitis. METHODS Sonographic assessment of 14 parameters was performed in 55 patients during a 9-month period: volume of gallbladder (GB), thickness of GB wall, pattern of(More)
INTRODUCTION We report our experience with laparoscopic major liver resection in Korea based on a multicenter retrospective study. MATERIALS AND METHODS Data from 1,009 laparoscopic liver resections conducted from 2001 to 2011 were retrospectively collected. Twelve tertiary medical centers with specialized hepatic surgeons participated in this study. (More)
Despite it being a benign disease, a choledochal cyst must be removed with the gallbladder (GB) due to the risk of cancer in the biliary tract. Most patients are young females or children, all of whom express strong interest in the cosmetic results in addition to the complete resolution of their medical problems. Here, we introduce a laparoscopic management(More)
OBJECTIVE To determine the feasibility of the laparoscopic approach for treating suspected early-stage gallbladder carcinoma. DESIGN, SETTING, AND PATIENTS Prospective study from a university hospital. From May 10, 2004, to October 9, 2007, the laparoscopic approach was considered for treating 36 patients with suspected gallbladder carcinoma at T2 or less(More)
BACKGROUND When a tumor is located in segment 4 (S4), it is preferable to perform only limited resection of S4, even in laparoscopic surgery. Here we describe anatomical laparoscopic S4, subdivision of S4 (S4a and S4b), and extended S4 segmentectomy for hepatocellular carcinoma (HCC), using the Glissonian pedicle transection method for each, and evaluate(More)
BACKGROUND Laparoscopic treatment for gallbladder cancer (GBC) has long been contraindicated, but few studies have demonstrated the oncologic outcomes of this treatment. The purpose of this study was to evaluate long-term survival after intended laparoscopic surgery for early-stage GBC based on our 10 years of experience. STUDY DESIGN Between May 2004 and(More)
We have investigated BM (bone marrow)-derived MSCs (mesenchymal stem cells) for the treatment of liver injury. It was hypothesized that MSC-mediated resolution of liver injury could occur through an antioxidative process. After being injected with CCl4 (carbon tetrachloride), mice were injected with syngenic BM-derived MSCs or normal saline. Oxidative(More)