Gyu‐Seong Choi

ORCID: 0000-0003-2545-3105
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About
Contact & Profiles
Research Areas
  • Organ Transplantation Techniques and Outcomes
  • Liver Disease and Transplantation
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Liver Disease Diagnosis and Treatment
  • Renal Transplantation Outcomes and Treatments
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Organ Donation and Transplantation
  • Transplantation: Methods and Outcomes
  • Pancreatic and Hepatic Oncology Research
  • Hepatitis C virus research
  • Hepatitis B Virus Studies
  • Gallbladder and Bile Duct Disorders
  • Cancer, Lipids, and Metabolism
  • Cytomegalovirus and herpesvirus research
  • Neurological Complications and Syndromes
  • Immune Cell Function and Interaction
  • Liver physiology and pathology
  • Anesthesia and Pain Management
  • Viral-associated cancers and disorders
  • Herpesvirus Infections and Treatments
  • Nausea and vomiting management
  • Cancer, Hypoxia, and Metabolism
  • Clinical Nutrition and Gastroenterology
  • Liver Diseases and Immunity
  • Organ and Tissue Transplantation Research

Sungkyunkwan University
2016-2025

Samsung Medical Center
2016-2025

ORCID
2023

Seoul National University Hospital
2016-2023

Yahoo (United Kingdom)
2023

Association of British Orchestras
2023

Dioxide Materials (United States)
2023

Total (Germany)
2023

Total (France)
2023

University of Ulsan
2023

This study aimed to assess the performance of ChatGPT, specifically GPT-3.5 and GPT-4 models, in understanding complex surgical clinical information its potential implications for education training.The dataset comprised 280 questions from Korean general surgery board exams conducted between 2020 2022. Both models were evaluated, their performances compared using McNemar test.GPT-3.5 achieved an overall accuracy 46.8%, while demonstrated a significant improvement with 76.4%, indicating...

10.4174/astr.2023.104.5.269 article EN Annals of Surgical Treatment and Research 2023-01-01

We intraindividually compared the efficacy of magnetic resonance imaging (MRI) with extracellular contrast agents (ECA‐MRI) and MRI hepatobiliary (HBA‐MRI) for diagnosis hepatocellular carcinoma (HCC) using Liver Imaging Reporting Data System (LI‐RADS). Between November 2016 2017, we enrolled 91 patients chronic liver disease who underwent both ECA‐MRI HBA‐MRI within a 1‐month interval first detected hepatic nodule on ultrasound. In total, 117 observations (95 HCCs, 19 benign lesions, 3...

10.1002/hep.30122 article EN cc-by Hepatology 2018-08-06

Summary Background While evidence from preclinical and observational cohort studies have suggested potential disparities in tumour behaviour associated with the choice of intra‐operative anaesthetics, clinical recurrence metastasis remains inconclusive. We aimed to compare impact anaesthesia on oncologic outcomes following hepatectomy for hepatocellular carcinoma. Methods Adult patients scheduled elective carcinoma were assigned randomly (1:1) either propofol‐based total intravenous or...

10.1111/anae.16488 article EN Anaesthesia 2025-01-08

The problem of graft size is one the critical factors limiting expansion adult-to-adult living donor liver transplantation (LDLT). We compared outcome LDLT recipients who received grafts with a graft-to-recipient weight ratio (GRWR) < 0.8% or GRWR > = 0.8%, and we analyzed risk affecting survival after small-for-size (SFSGs) were used. Between June 1997 April 2008, 427 patients underwent right lobe at Department Surgery Samsung Medical Center. Recipients divided into 2 groups: group A (n 35)...

10.1002/lt.22094 article EN Liver Transplantation 2010-05-14

Even after 2 decades of experience in laparoscopic hepatectomy, data on purely approach for donor hepatectomy adult living liver transplantation (LDLT) are limited. We report our initial a recipients to explore its potential application the management donors. did retrospective analysis 54 consecutive patients operated between May 2013 and February 2015. There were 41 right, 10 extended 3 left hepatectomies. The median operative time was 436 minutes (range 294-684 minutes), warm ischemia 6...

10.1002/lt.25307 article EN Liver Transplantation 2018-07-19

Background: This study aimed to develop an automated segmentation system for biliary structures using a deep learning model, based on data from magnetic resonance cholangiopancreatography (MRCP). Materials and methods: Living liver donors who underwent MRCP the gradient spin echo technique followed by three-dimensional modeling were eligible this study. A residual U-Net model was implemented process. Data divided into training test sets at 9:1 ratio. Performance assessed dice similarity...

10.1097/js9.0000000000001067 article EN cc-by-nc-nd International Journal of Surgery 2024-01-11

Duct-to-duct (DD) anastomosis is an accepted procedure for biliary reconstruction in living donor liver transplantation (LDLT). However, complication rates LDLT recipients have been reported to be as high 20% 30% or more. In this study, we examined various potential risk factors stricture (BS) that occurs the context of DD a single-active transplant center.Enrolled study were adults who underwent their first with between August 2002 and May 2007 (n=283). BSs defined anastomotic strictures...

10.1097/tp.0b013e31818b2316 article EN Transplantation 2008-12-09

Several studies have suggested that surgical resection (SR) can provide a survival benefit over transarterial chemoembolization (TACE) for hepatocellular carcinoma (HCC) at the intermediate stage according to Barcelona Clinic Liver Cancer (BCLC) staging system. However, criteria SR remain be determined. This study compared long-term outcome of intermediate-stage HCC patients treated by either TACE or as primary treatment modality, with aim identifying patient subgroup gained modality.In...

10.3350/cmh.2016.0015 article EN cc-by-nc Clinical and Molecular Hepatology 2016-06-25

The innovative pure laparoscopic living donor right hepatectomy (LLDRH) procedure for liver transplantation has never been fully compared to open (OLDRH). We aimed compare the safety and graft results of LLDRH those OLDRH.From May 2013 July 2017, 288 consecutive donors underwent either OLDRH (n = 197) or 91). After propensity score matching, 72 were included in each group. primary outcome was postoperative complications during a 90-day follow-up period. Comprehensive complication index,...

10.1097/tp.0000000000002834 article EN Transplantation 2019-07-08

Background Intrathecal morphine (ITM) provides effective postoperative analgesia in living donor hepatectomy but has significant adverse effects. Studies support the efficacy of erector spinae plane (ESP) blocks laparoscopic abdominal surgery; we therefore hypothesized that they would provide non-inferior compared with ITM and reduce nausea/vomiting pruritus. We conducted a randomized, controlled, non-inferiority trial to compare analgesic bilateral single-injection ESP hepatectomy. Methods...

10.1136/rapm-2019-100902 article EN Regional Anesthesia & Pain Medicine 2019-10-23

This study analyzed the feasibility of laparoscopic living donor hepatectomy compared to open surgery.Donors who underwent right from May 2013 October 2017 were included. Comparisons between laparoscopy and surgery performed using Student's t-test, Mann-Whitney test, χ2 Fisher's exact linear-by-linear association.Among 305 donors, 100 205 surgery, respectively. The group had more type I (95.0%) bile ducts than (59.5%, P < 0.001) longer operation time (378.2 ± 93.5 min vs. 329.1 68.0 min,...

10.1002/jhbp.653 article EN Journal of Hepato-Biliary-Pancreatic Sciences 2019-07-04

According to recent international consensus conferences, pure laparoscopic donor hepatectomy (PLDH), particularly right and left hepatectomies, is not yet considered a standard practice because studies remain limited. Thus, we present the outcomes of more than 500 PLDH patients, mostly receiving hepatectomy. To our knowledge, this largest study date on PLDH. Data from all living liver donors who underwent at 5 centers in Korea until June 2018 were retrospectively analyzed. The both...

10.1002/lt.25848 article EN Liver Transplantation 2020-07-17

Recent advancements in deep learning have facilitated significant progress medical image analysis. However, there is lack of studies specifically addressing the needs surgeons terms practicality and precision for surgical planning. Accurate understanding anatomical structures, such as liver its intrahepatic crucial preoperative planning from a surgeon's standpoint. This study proposes model automatic segmentation parenchyma, vascular biliary tumor mass hepatobiliary phase MRI to improve...

10.1038/s41598-023-44736-w article EN cc-by Scientific Reports 2023-10-17

The tumor biology of hepatocellular carcinoma (HCC) affects recurrence after liver transplantation (LT), but most selection guidelines are based only on size and number. aim the study is to evaluate possibility expanding criteria in living donor LT (LDLT) without compromising patient survival by adding alpha-fetoprotein (AFP) guideline.One hundred thirty-nine patients who received LDLT with diagnosis HCC survived more than 3 months were enrolled. operability was Milan beyond performed when...

10.1159/000106911 article EN Digestive Diseases 2007-01-01

Objectives: The purpose of this study is to identify the safety and feasibility laparoscopic caudate lobectomy. Background: Caudate lobectomy has been considered as technically difficult because deep location lobe its proximity great vessels. Due technical difficulty, was not feasible in patients with malignancy lobe. Methods: Six consecutive hepatic received at Samsung Medical Center from September 2007 May 2014. Demographic data, intraoperative parameters, postoperative outcomes were...

10.1089/lap.2016.0161 article EN Journal of Laparoendoscopic & Advanced Surgical Techniques 2016-07-19

Objective: Evaluating the perioperative outcomes of minimally invasive (MIV) donor hepatectomy for adult live liver transplants in a large multi-institutional series from both Eastern and Western centers. Background: Laparoscopic resection has become standard practice minor resections selected patients whom it provides reduced postoperative morbidity faster rehabilitation. approaches living transplantation, however, remain controversial because safety concerns. Following recommendation Jury...

10.1097/sla.0000000000003852 article EN Annals of Surgery 2020-03-27

Abstract Pure laparoscopic donor right hepatectomy (PLDRH) is not a standard procedure for living liver transplantation but safe and reproducible in the hands of experienced surgeons. However, perioperative outcomes PLDRH have been fully evaluated yet. We used propensity score matching to compare complications postoperative short-term donors undergoing open (ODRH). A total 325 consecutive who underwent elective, adult-to-adult were initially screened. After matching, all patients divided...

10.1038/s41598-020-62289-0 article EN cc-by Scientific Reports 2020-03-24

Abstract This study was designed to review laparoscopic living donor liver transplantations (LDLTs) at a single center that achieved complete transition from open surgery laparoscopy. LDLTs performed January 2013 July 2021 were reviewed. Comparisons between and surgeries according periods divided into initial, transition, periods. A total of 775 LDLTs, 506 269 cases, performed. Complete in 2020. Bile duct variations significantly abundant the group both initial period (30.2% vs. 8.1%; p &lt;...

10.1002/lt.26429 article EN Liver Transplantation 2022-02-09

Abstract Purpose This study aimed to assess the performance of ChatGPT, specifically GPT-3.5 and GPT-4 models, in understanding complex surgical clinical information its potential implications for education training. Methods The dataset comprised 280 questions from Korean general surgery board exams conducted between 2020 2022. Both models were evaluated, their performances compared using McNemar’s test. Results achieved an overall accuracy 46.8%, while demonstrated a significant improvement...

10.1101/2023.03.16.23287340 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2023-03-17
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