1.Feasibility of laparoscopic liver resection for giant hemangioma of greater than 6 cm in diameter.
In Sung KIM ; Choon Hyuck David KWON
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2014;18(4):118-121
BACKGROUNDS/AIMS: Liver hemangioma, the most common benign liver tumor, can be safely managed by clinical observation. However, surgical treatment should be considered in a subset of patients with giant hemangioma with abdominal symptoms. We reviewed the feasibility of total laparoscopic liver resection for giant hemangioma of >6 cm in diameter. METHODS: Nine consecutive patients who underwent total laparoscopic liver resection for giant hemangioma between August 2008 to December 2012 were included in this study. Medical records were retrospectively reviewed for demographic data, laboratory findings, and perioperative results. RESULTS: The median age of patients was 36 yrs (range, 31-63). Eight females and 1 male were included in the study. The median size of hemangioma was 11 cm in diameter (range, 6-18) and 5 patients had a hemangioma >10 cm. Indications for surgical treatments were abdominal symptoms in 4 patients, increased size in 5 patients, and uncertain diagnosis in 1 patient. The median operation time was 522 minutes for right hepatectomy, 220 minutes for left lateral sectionectomy, and 90 minutes for wedge resection. The median estimated blood loss was 400 ml (range, 50-900). There was no postoperative morbidity, including Clanvien-Dindo grade I. CONCLUSIONS: The resection of giant hemangioma demands meticulous surgical technique due to high vascularity and the concomitant risk of intraoperative hemorrhage. Laparoscopic liver resection is feasible with minimal operative complication. Therefore, laparoscopic liver resection can be considered as an option for surgical treatment for giant hemangioma.
Diagnosis
;
Female
;
Hemangioma*
;
Hemorrhage
;
Hepatectomy
;
Humans
;
Liver*
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Male
;
Medical Records
;
Retrospective Studies
2.Hepatocyte Transplantation.
Choon Hyuck David KWON ; Suk Koo LEE
The Journal of the Korean Society for Transplantation 2009;23(1):1-7
Since the first hepatocyte transplantation (HT) was done by Matas and colleagues 3 decades ago in Gunn rats, there has been much development in the field of HT and clinical application to over 70 humans has been performed worldwide ever since. HT has many advantages compared to the conventional liver transplantation (LT) such as lower cost, lower morbidity, possibility of genetic modification, availability of cryopreservation, utilization of inadequate livers for LT and possibility to transplant to multiple recipients from a single donor. HT has been applied as a definitive treatment option in metabolic liver disease or fulminant hepatic failure with marginal results. It has also been used as a bridge to LT in severely ill patients awaiting LT, but it has not yet been widely accepted due to the shortcoming of clinical efficacy compared to LT. Much effort was made over the past several years to improve these results, and we hope that with the help of future research, HT will soon have a clear clinical role in the management of liver diseases. This review article will cover various animal models used for researching HT and methods used for transplanting hepatocytes. It will also briefly introduce the worldwide clinical results in human trials as well as our experience on a successful case with glycogen storage disease and its long term result.
Cryopreservation
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Glycogen Storage Disease
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Hepatocytes
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Humans
;
Liver
;
Liver Diseases
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Liver Failure, Acute
;
Liver Transplantation
;
Models, Animal
;
Rats, Gunn
;
Tissue Donors
;
Transplants
3.Pneumatosis intestinalis after adult liver transplantation.
Jong Man KIM ; Yulri PARK ; Jae Won JOH ; Choon Hyuck David KWON ; Sung Joo KIM ; Seung Heui HONG ; Suk Koo LEE
Journal of the Korean Surgical Society 2011;80(Suppl 1):S47-S50
Pneumatosis intestinalis is an uncommon disorder characterized by an accumulation of gas in the bowel wall. We described three cases undertaking liver transplantation. The patients developed diarrhea in three cases and high fever in two. An abdominal X-ray and computed tomography scan demonstrated extensive pneumatosis intestinalis in the colon with pneumoperitoneum mimicking hollow organ perforation. However, the patients had no abdominal symptoms and there was no evidence of peritonitis. The infection work-up was negative except one case with cytomegalovirus antigenemia. After one week of conservative management including bowel rest and antibiotic therapy, their pneumoperitoneum resolved spontaneously without any complication. Pneumatosis intestinalis should be considered as a differential diagnosis after adult liver transplantation with patients suffering from watery diarrhea and fever. Pneumoperitoneum, air-density in mesentery and retroperitoneum in patients with pneumatosis intestinalis without signs of peritonitis improved with conservative management, which included bowel rest and antibiotic therapy.
Adult
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Colon
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Cytomegalovirus
;
Diagnosis, Differential
;
Diarrhea
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Fever
;
Humans
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Liver
;
Liver Transplantation
;
Mesentery
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Mortuary Practice
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Peritonitis
;
Pneumoperitoneum
;
Stress, Psychological
4.Morphologic Variations of the Umbilical Ring, Umbilical Ligaments and Ligamentum Teres Hepatis.
Chang Seok OH ; Hyung Sun WON ; Choon Hyuck David KWON ; In Hyuk CHUNG
Yonsei Medical Journal 2008;49(6):1004-1007
PURPOSE: The varied morphology of the umbilical ring and its surrounding structures, such as the ligamentum teres hepatis, and the median and medial umbilical ligaments, has not been thoroughly investigated. Hence, this study was undertaken to clarify the morphologic variations of these structures. MATERIALS AND METHODS: The anterior abdominal walls were removed en bloc from 57 adult cadavers and dissected under a surgical microscope. RESULTS: One case of umbilical hernia was observed, and the remaining 56 umbilical rings were classified into 3 types: oval or round in 33 cases (Type A, 59.0%), obliterated or slitted in 12 cases (Type B, 21.4%), and completely covered by a connecting band between the ligamentum teres hepatis and umbilical ligaments in 11 cases (Type C, 19.6%). The median and medial umbilical ligaments were classified into four types based on their interrelationships. The most common type was the median umbilical ligament terminated by joining one or both medial umbilical ligaments (Type II, 41.1%). The ligamentum teres hepatis frequently ended by dividing into several branches in the area cranial to the umbilical ring, some of which crossed the umbilical ring. The umbilical fascia covered the umbilical ring in 50.0% of cases, and the rest either not covering the ring or not existing. CONCLUSION: These results are expected to improve our understanding of the anatomy of the umbilical area, and further improve treatments of the umbilical hernia.
Adult
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Aged
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Aged, 80 and over
;
Autopsy
;
Female
;
Hernia, Umbilical/pathology
;
Humans
;
Ligaments/anatomy & histology/pathology
;
Male
;
Middle Aged
;
Umbilicus/*anatomy & histology/pathology
5.Trend and Outcome of Korean Patients Receiving Overseas Solid Organ Transplantation between 1999 and 2005.
Choon Hyuck David KWON ; Suk Koo LEE ; Jongwon HA
Journal of Korean Medical Science 2011;26(1):17-21
The disparity between patients awaiting transplantation and available organs forced many patients to go overseas to receive a transplant. Few data concerning overseas transplantation in Korea are available and the Korea Society for Transplantation conducted a survey to evaluate the trend and outcome of overseas transplantation. The survey, conducted on June 2006, included 25 hospitals nationwide that followed up patients after receiving kidney transplant (KT) or liver transplant (LT) overseas. The number of KT increased from 6 in 2001 to 206 in 2005 and for LT from 1 to 261. The information about overseas transplant came mostly from other patients (57%). The mean cost for KT was dollar 21,000 and for LT dollar 47,000. Patients were admitted for 18.5 days for KT and 43.4 days for LT. Graft and patient survival was 96.8% and 96.5% for KT (median follow up 23.1 months). Complication occurred in 42.5% including surgical complication (5.3%), acute rejection (9.7%) and infection (21.5%). Patient survival for LT was 91.8% (median follow up 21.2 months). Complication occurred in 44.7% including 19.4% biliary complication. Overseas KT and LT increased rapidly from 2001 to 2005. Survival of patients and grafts was comparable to domestic organ transplantation, but had a high complication rate.
Graft Rejection/complications
;
Graft Survival
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Humans
;
Kidney Transplantation/adverse effects/economics/trends
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Liver Transplantation/adverse effects/economics/trends
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Organ Transplantation/adverse effects/economics/*trends
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Postoperative Complications/epidemiology
;
Questionnaires
;
Republic of Korea
6.Trend and Outcome of Korean Patients Receiving Overseas Solid Organ Transplantation between 1999 and 2005.
Choon Hyuck David KWON ; Suk Koo LEE ; Jongwon HA
Journal of Korean Medical Science 2011;26(1):17-21
The disparity between patients awaiting transplantation and available organs forced many patients to go overseas to receive a transplant. Few data concerning overseas transplantation in Korea are available and the Korea Society for Transplantation conducted a survey to evaluate the trend and outcome of overseas transplantation. The survey, conducted on June 2006, included 25 hospitals nationwide that followed up patients after receiving kidney transplant (KT) or liver transplant (LT) overseas. The number of KT increased from 6 in 2001 to 206 in 2005 and for LT from 1 to 261. The information about overseas transplant came mostly from other patients (57%). The mean cost for KT was dollar 21,000 and for LT dollar 47,000. Patients were admitted for 18.5 days for KT and 43.4 days for LT. Graft and patient survival was 96.8% and 96.5% for KT (median follow up 23.1 months). Complication occurred in 42.5% including surgical complication (5.3%), acute rejection (9.7%) and infection (21.5%). Patient survival for LT was 91.8% (median follow up 21.2 months). Complication occurred in 44.7% including 19.4% biliary complication. Overseas KT and LT increased rapidly from 2001 to 2005. Survival of patients and grafts was comparable to domestic organ transplantation, but had a high complication rate.
Graft Rejection/complications
;
Graft Survival
;
Humans
;
Kidney Transplantation/adverse effects/economics/trends
;
Liver Transplantation/adverse effects/economics/trends
;
Organ Transplantation/adverse effects/economics/*trends
;
Postoperative Complications/epidemiology
;
Questionnaires
;
Republic of Korea
7.Effect of early enteral nutrition after hepatectomy in hepatocellular carcinoma patients.
Jonghwan LEE ; Choon Hyuck David KWON ; Jong Man KIM ; Milljae SHIN ; Jae Won JOH
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2012;16(4):129-133
BACKGROUNDS/AIMS: To evaluate the effect of early enteral nutrition after hepatectomy in hepatocellular carcinoma (HCC) patients on postoperative gastrointestinal motility recovery and admission days, liver function and nutrition recovery, and postoperative complication. METHODS: From August 2010 to July 2011, 102 patients with primary HCC underwent hepatectomy. Forty two patients took a sip of water (SOW) at postoperative day (POD)#1, soft blended diet (SBD) at POD#2 (early diet group, ED group), otherwise 60 patients took a SOW at POD#3, SBD at POD#4 (conventional diet group, CD group). Postoperative flatus-pass day, stool-pass day, nausea, vomiting, admission days, immediate postoperative (POD#0) and POD#1, 3, 5, 7 profiles of albumin, prothrombin time (PT) INR, total bilirubin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), white blood cell (WBC), and POD#1, 3, 5, 7 profiles of C-reactive protein (CRP), and postoperative complications cases were compared between ED group and CD group. All clinical data were compared retrospectively. RESULTS: Flatus-pass days (p<0.01), stool-pass days (p<0.01) and postoperative admission days (p=0.012) were shorter in ED group. Total bilirubin levels were higher at POD#0, 1, 3 but lower or similar at POD#5, 7 in ED group. AST, ALT levels were higher at POD#0 but lower at POD#1, 3, 5. There were no significant differences in albumin, PT INR, WBC, CRP and postoperative complication rates. CONCLUSIONS: ED group had no difference in nutritional recovery and postoperative complication rates compared to CD group but it has better gastrointestinal motility recovery, liver function recovery, and shorter postoperative admission days.
Alanine Transaminase
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Aspartate Aminotransferases
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Bilirubin
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C-Reactive Protein
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Carcinoma, Hepatocellular
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Diet
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Enteral Nutrition
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Gastrointestinal Motility
;
Hepatectomy
;
Humans
;
International Normalized Ratio
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Leukocytes
;
Liver
;
Nausea
;
Postoperative Complications
;
Prothrombin Time
;
Recovery of Function
;
Vomiting
;
Water
8.Living donor liver transplantation prior to multiple myeloma treatment in a patient with hepatitis B-associated hepatocellular carcinoma and liver cirrhosis: a case report.
Chan Woo CHO ; Nuri LEE ; Gyu Seong CHOI ; Jong Man KIM ; Choon Hyuck David KWON ; Jae Won JOH
Annals of Surgical Treatment and Research 2018;94(4):216-218
Clinical outcomes of living donor liver transplantation (LDLT) for hepatocellular carcinoma (HCC) in patients with multiple myeloma (MM) have not been established in terms of HCC recurrence and MM deterioration after LDLT. A 51-year-old man with chronic hepatitis B was diagnosed with HCC and MM. Since the patient also had decompensated liver cirrhosis (LC), he underwent LDLT prior to autologous peripheral blood stem cell transplantation (PBSCT) to prevent fulminant hepatitis due to HBV reactivation. The patient received Epstein-Barr virus prophylaxis and a triple immunosuppressive regimen of tacrolimus, everolimus, and steroid after LDLT. Autologous PBSCT was performed 7 months after LDLT. He showed a complete response to treatment of MM without post-LT complications or HCC recurrence. In conclusion, LDLT could be adapted for treatment of MM patients with combined HCC and decompensated LC because it is an effective strategy of preventing HBV reactivation and HCC recurrence after induction therapy of MM.
Carcinoma, Hepatocellular*
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Everolimus
;
Hepatitis B, Chronic
;
Hepatitis*
;
Herpesvirus 4, Human
;
Humans
;
Liver Cirrhosis*
;
Liver Transplantation*
;
Liver*
;
Living Donors*
;
Middle Aged
;
Multiple Myeloma*
;
Peripheral Blood Stem Cell Transplantation
;
Recurrence
;
Tacrolimus
9.Clinical usefulness of transarterial chemoembolization response prior to liver transplantation as predictor of optimal timing for living donor liver transplantation.
Chan Woo CHO ; Gyu Seong CHOI ; Jong Man KIM ; Choon Hyuck David KWON ; Doo Jin KIM ; Jae Won JOH
Annals of Surgical Treatment and Research 2018;95(2):111-120
PURPOSE: Response to preoperative transarterial chemoembolization (TACE) has been recommended as a biological selection criterion for liver transplantation (LT). The aim of our study was to identify optimal timing of living donor liver transplantation (LDLT) after TACE based on the TACE response. METHODS: We performed a retrospective study to assess recurrence in 128 hepatocellular carcinoma (HCC) patients who underwent LDLT following sequential TACE from January 2002 to March 2015 at a single institute. Cox proportional hazard models and Kaplan-Meier analysis were utilized to estimate HCC recurrence and find optimal timing for LDLT. RESULTS: Seventy-three and 61 patients were divided as the responder and nonresponder, respectively. Multivariate analysis showed independent pre-liver transplantation (pre-LT) predictors of recurrence were larger sized tumor (>3 cm, P = 0.024), nonresponse to TACE (P = 0.031), vascular invasion (P = 0.002), and extrahepatic nodal involvement (P = 0.001). In the 3-month time difference between last pre-LT TACE and LDLT subgroup, TACE responders showed significantly higher adjusted hazard ratio (aHR) of recurrence free survival (aHR, 6.284; P = 0.007), cancer specific survival (aHR, 7.033; P = 0.016), and overall survival (aHR, 7.055; P = 0.005). Moreover, for overall patients and responder groups, the significant time difference between last pre-LT TACE and LDLT was 2 months in the minimum P-value approach. CONCLUSION: In selected patients who showed good response to pre-LT TACE, a shorter time interval between TACE and LDLT may be associated with higher recurrence free survival, cancer specific survival, and overall survival.
Carcinoma, Hepatocellular
;
Humans
;
Kaplan-Meier Estimate
;
Liver Transplantation*
;
Liver*
;
Living Donors*
;
Multivariate Analysis
;
Proportional Hazards Models
;
Recurrence
;
Retrospective Studies
10.Continuing five or more locoregional therapies before living donor salvage liver transplantation for hepatocellular carcinoma is related to poor recurrence-free survival.
Jinsoo RHU ; Jong Man KIM ; Gyu Seong CHOI ; Choon Hyuck David KWON ; Jae Won JOH
Annals of Surgical Treatment and Research 2018;95(3):152-160
PURPOSE: This study was designed to analyze factors related to the success of salvage liver transplantation (SLT) in hepatocellular carcinoma (HCC). While liver resection (LR) is considered the best locoregional therapy in HCC, there is a high recurrence rate. SLT may be the best treatment option when feasible. METHODS: Patients who underwent living donor SLT for recurrent HCC after LR from November 1996 to May 2017 were included. Patient demographic data, clinical and pathologic characteristics, operative data, hospital course, and follow-up data regarding initial LR, locoregional therapy after recurrence and SLT were reviewed. Prognostic factors for recurrence were analyzed using Cox proportional hazard ratio. RESULTS: Eighty-five of 123 SLT patients were included. Patients who had five or more locoregional therapies prior to SLT (hazard ratio [HR], 3.74; 95% confidence interval [CI], 1.45–9.64, P = 0.006), hepatitis B (HR, 9.20; 95% CI, 1.13–74.89; P = 0.04), outside Milan criteria at the time of SLT (HR, 2.66, 95% CI, 1.26–5.63; P = 0.011) and an alpha-fetoprotein level above 1,000 ng/mL at the time of recurrence after initial LR (HR, 6.48; 95% CI, 1.83–22.92; P = 0.004) and at the time of transplantation (HR, 3.43; 95% CI, 1.26–5.63; P = 0.011) were related to significant risk of recurrence. CONCLUSION: Continuing five or more locoregional therapies for recurrent HCC after LR is related to poor recurrence-free survival after SLT.
alpha-Fetoproteins
;
Carcinoma, Hepatocellular*
;
Follow-Up Studies
;
Hepatitis B
;
Humans
;
Liver Transplantation*
;
Liver*
;
Living Donors*
;
Recurrence