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Hyung-wook Kim

Sungkyunkwan University · Medicine

About the Lab

Professor Hyung-wook Kim's research lab specializes in minimally invasive surgical techniques, with a focus on laparoscopic cholecystectomy and appendectomy, particularly in complex and elderly patient populations. The lab investigates perioperative outcomes, pain management, and patient recovery, including the impact of early oral feeding and adjuvant therapies like intravenous lidocaine in colorectal surgery. A key interest lies in optimizing surgical strategies to improve safety and cosmesis, especially in high-risk groups such as octogenarians and those with complicated gallbladder disease. The lab also explores systemic links between gastrointestinal health and other chronic conditions, such as periodontitis and colorectal adenoma risk.

laparoscopic surgeryelderly surgerypostoperative recoverycolorectal cancerperioperative outcomes

Research Overview

Papers
101
Total Citations
1,453
Papers (5y)
14
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
14total
2021
2022
2023
2025
2026
Citations per year (5y)
118total
20212022202320252026

Selected Papers

15
1
Article|153 citations·2008
Laparoscopic-assisted distal gastrectomy versus open distal gastrectomy for advanced gastric cancer
Sang Il Hwang, Hyung Ook Kim, Chang Hak Yoo, Jun Ho Shin, Byung Ho Son
SJR Q1Surgical Endoscopy
Pulmonary and Respiratory MedicineMedicine
2
Article|65 citations·2009
Impact of Delayed Laparoscopic Cholecystectomy After Percutaneous Transhepatic Gallbladder Drainage for Patients With Complicated Acute Cholecystitis
Hyung Ook Kim, Byung Ho Son, Chang Hak Yoo, Jun Ho Shin
SJR Q2Surgical Laparoscopy Endoscopy & Percutaneous Techniques

Laparoscopic cholecystectomy (LC) for complicated acute cholecystitis is associated with high rates of complications and conversion to open cholecystectomy. Percutaneous transhepatic gallbladder drainage (PTGBD) is a safe and effective treatment for acute inflammation of the gallbladder. This study was a retrospective analysis of patients who underwent an LC with or without PTGBD for complicated acute cholecystitis at our hospital between January 2002 and January 2007. Patients were classified i

Pulmonary and Respiratory MedicineMedicine
3
Article|63 citations·2012
Pain after laparoscopic appendectomy: a comparison of transumbilical single-port and conventional laparoscopic surgery
Hyung Ook Kim, Chang Hak Yoo, Sung Ryol Lee, Byung Ho Son, Yong Lai Park, Jun Ho Shin, Hungdai Kim, Won Kon Han
Journal of the Korean Surgical SocietyOA

Laparoscopic surgeons should be concerned about longer operation times and higher immediate postoperative pain scores in patients who undergo SA.

Emergency MedicineMedicine
4
Article|45 citations·2012
Pain after laparoscopic appendectomy: a comparison of transumbilical single-port and conventional laparoscopic surgery
김형욱, 류창학, Sung Ryol Lee, 손병호, 박용래, 신준호, Hungdai Kim, 한원곤

Purpose: Conventional laparoscopic appendectomy is performed using three ports, and single-port appendectomy is an attractive alternative in order to improve cosmesis. The aim of this study was to compare pain after transumbilical single-port laparoscopic appendectomy (SA) with pain after conventional three-port laparoscopic appendectomy (TA). Methods: From April to September 2011, 50 consecutive patients underwent laparoscopic appendectomy for simple appendicitis without gangrene or perforation

5
Article|40 citations·2009
Outcome of laparoscopic cholecystectomy is not influenced by chronological age in the elderly
Hyung Ook Kim, Jung Won Yun, Jun Ho Shin, Sang Il Hwang, Yong Kyun Cho, Byung Ho Son, Chang Hak Yoo, Yong Lai Park, Hungdai Kim
SJR Q1World Journal of GastroenterologyOA

Perioperative outcomes in elderly patients who underwent LC seem to be influenced by the severity of gallbladder disease, and not by chronologic age. In octogenarians, LC should be performed at an earlier, uncomplicated stage of the disease whenever possible to improve perioperative outcomes.

Pulmonary and Respiratory MedicineMedicine
6
Article|28 citations·2014
Early oral feeding following laparoscopic colorectal cancer surgery
Hyung Ook Kim, Hyung Ook Kim, Sung Ryol Lee, Won Joon Choi, Hungdai Kim, Hungdai Kim
SJR Q2ANZ Journal of Surgery

BACKGROUND: Early oral feeding (EOF) following colorectal surgery can accelerate patient recovery and shorten hospital stay. However, some patients are intolerable to postoperative early oral feeding. The aim of this study was to evaluate the tolerability of EOF following laparoscopic colorectal cancer surgery and the effects of intravenous lidocaine. METHODS: The cohort in this randomized, placebo-controlled trial (ClinicalTrial.gov, NCT01346917) comprised of 77 patients undergoing elective lap

SurgeryMedicine
7
Article|28 citations·2018
Association between oral health and colorectal adenoma in a screening population
Donghyoun Lee, Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim, Ho-Kyung Chun
SJR Q3MedicineOA

Although periodontal disease and gastrointestinal tract health are closely associated, few studies have investigated whether periodontitis is a risk factor for colorectal adenoma. The aim of this study was to investigate whether there is an association between periodontitis and the risk of colorectal adenoma in asymptomatic healthy people.From January 2013 to October 2015, we retrospectively enrolled 42,871 patients who underwent health screening at Kangbuk Samsung Hospital in South Korea. Demog

OncologyMedicine
8
Article|26 citations·2009
Radiofrequency Ablation for Metachronous Hepatic Metastases From Gastric Cancer
Hyung Ook Kim, Sang Il Hwang, Hyun Pyo Hong, Chang Hak Yoo
SJR Q2Surgical Laparoscopy Endoscopy & Percutaneous Techniques

The objective of this study was to evaluate the results of radiofrequency ablation (RFA) for the treatment of metachronous hepatic metastases from gastric adenocarcinoma. Between January 2000 and February 2008, we retrospectively reviewed 7 cases for which RFA was performed for treating metachronous hepatic metastases after resection of the primary gastric adenocarcinoma. The median period between curative gastrectomy and metachronous hepatic metastasis was 14 months (range: 6 to 48 mo). The med

Pulmonary and Respiratory MedicineMedicine
9
Article|25 citations·2009
Preoperative colonoscopy for patients with gastric adenocarcinoma
Hyung Ook Kim, Sang Il Hwang, Chang Hak Yoo, Hungdai Kim
SJR Q1Journal of Gastroenterology and Hepatology

BACKGROUND AND AIM: In patients with gastric adenocarcinoma (GA), the most common double primary cancer is colorectal cancer. The aim of the present study was to evaluate the necessity of preoperative colonoscopy in patients with GA who have no symptoms of colorectal disease or any past/family history of colorectal cancer. MATERIALS: Colonoscopy was carried out in 205 patients before gastric surgery for treatment of GA. The prevalence of colorectal neoplasms (CRN, adenoma and adenocarcinoma) was

OncologyMedicine
10
Article|18 citations·2008
Quality of survival in patients treated for malignant biliary obstruction caused by unresectable pancreatic head cancer: surgical versus non-surgical palliation.
Hyung Ook Kim, Sang Il Hwang, Hungdai Kim, Jun Ho Shin
PubMed

BACKGROUND: Appropriate palliation for unresectable pancreatic head cancer is most important. This study was undertaken to compare the survival of patients with biliary obstruction caused by unresectable pancreatic head cancer after surgical and non-surgical palliation. METHODS: We retrospectively reviewed 69 patients who underwent palliative treatment for unresectable pancreatic head cancer. Fifty-two patients with locally advanced disease (local vascular invasion) and 17 with distant metastati

OncologyMedicine
11
Article|15 citations·2009
Intraoperative radiofrequency ablation with or without tumorectomy for hepatocellular carcinoma in locations difficult for a percutaneous approach.
Hyung Ook Kim, Seung Kwon Kim, Byung Ho Son, Chang Hak Yoo, Hyun Pyo Hong, Yong Kyun Cho, Byung Ik Kim
PubMed

BACKGROUND: Although hepatic resection is widely accepted as a proper modality for treating hepatocellular carcinoma (HCC), a majority of patients are unable to undergo surgical resection due to various tumor and patient factors. Radiofrequency ablation (RFA) has mostly been used as a therapeutic alternative to resection for treating HCC. The objective of this study was to evaluate the results of intraoperative RFA for HCCs in locations difficult for a percutaneous approach. METHODS: Eight patie

HepatologyMedicine
12
Article|13 citations·2016
Scoring Systems Used to Predict Bladder Dysfunction After Laparoscopic Rectal Cancer Surgery
Hyung Ook Kim, Young Sam Cho, Hungdai Kim, Sung Ryol Lee, Kyung Uk Jung, Ho‐Kyung Chun, Kyung Uk Jung, Ho‐Kyung Chun
SJR Q1World Journal of Surgery

BACKGROUND: Postoperative bladder dysfunction often occurs after rectal cancer surgery, necessitating long-term urinary catheter drainage. The aim of this study was to evaluate the feasibility of early catheter removal and to propose scoring systems that may predict urinary dysfunction after laparoscopic rectal cancer surgery. METHODS: A total of 110 patients who underwent elective laparoscopic rectal cancer surgery were included in this prospective observational study. The urinary catheter was

EpidemiologyMedicine
13
Article|6 citations·2009
The Use of Absorbable Surgical Mesh after Partial Mastectomy for Improving the Cosmetic Outcome
Hyung Ook Kim, Sang Il Hwang, Cha Kyong Yom, Yong Lai Park, Won Gil Bae
SJR Q2Journal of Breast CancerOA

Purpose: Partial mastectomy without immediate volume replacement can be associated with cosmetic failure. The aim of the present study was to assess cosmesis achieved in patients who underwent partial mastectomy and recon- struction using absorbable surgical mesh. Methods: We used absorbable surgical mesh (Polyglactin 910, Vicryl� ) to repair defects after performing partial mastectomy in 25 patients. Endoscopy-assisted partial mastectomy was performed with conservation of the whole skin of the

SurgeryMedicine
14
Article|5 citations·2018
Patient-Controlled Nutrition After Abdominal Surgery: Novel Concept Contrary to Surgical Dogma
Hyung Ook Kim, Min‐Goo Kang, Sung Ryol Lee, Kyung Uk Jung, Hungdai Kim, Ho-Kyung Chun
SJR Q2Annals of ColoproctologyOA

After abdominal surgery, PCN may be a feasible and effective concept in postoperative nutrition. In our Early Recovery after Surgery program, our PCN concept may reduce the time to tolerance of a regular diet and shorten the postoperative hospital stay.

SurgeryMedicine
15
Article|5 citations·2018
Clinical Outcomes of Endoscopic Metal Stent Placement for Esophagojejunostomy Leakage After Total Gastrectomy for Gastric Adenocarcinoma
Sung Ryol Lee, Hyung Ook Kim, Jung Ho Park, Chang Hak Yoo
SJR Q2Surgical Laparoscopy Endoscopy & Percutaneous Techniques

OBJECTIVE: Management of esophagojejunostomy leakage (EJL) has a high mortality rate and increases length of hospital stay. The aim of this study was to evaluate the feasibility of early postoperative gastroduodenoscopy and stent insertion to control EJL after total gastrectomy for gastric adenocarcinoma. PATIENTS AND METHODS: Among 421 patients, 13 exhibited EJL. Of the 13 patients, 8 were treated with a covered self-expandable metal stent (SEMS) inserted by endoscopy and 5 patients were treate

SurgeryMedicine

Research Areas

OncologySurgeryPulmonary and Respiratory MedicineEmergency MedicineHepatologyMolecular Biology

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