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Bokseong Ko

Hanyang University · Medicine

About the Lab

Professor Bokseong Ko's research lab specializes in emergency medicine and critical care, with a strong focus on improving outcomes in acutely ill patients through early risk stratification and protocolized interventions. The lab investigates prognostic markers—such as lactate levels, inferior vena cava diameter ratios, and clinical scoring systems—to guide timely management in conditions like septic shock, upper gastrointestinal bleeding, and anaphylaxis. Key research directions include optimizing rapid response team protocols, evaluating the impact of early resuscitation bundles, and validating point-of-care diagnostics in the emergency setting. The lab emphasizes evidence-based, data-driven approaches to enhance patient safety and reduce in-hospital mortality in high-acuity clinical scenarios.

septic shockupper gastrointestinal bleedingrapid response teamlactateprognostic scoring

Research Overview

Papers
97
Total Citations
1,204
Papers (5y)
42
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
42total
2022
2023
2024
2025
2026
Citations per year (5y)
218total
20222023202420252026

Selected Papers

15
1
Article|63 citations·2017
Quick sequential organ failure assessment compared to systemic inflammatory response syndrome for predicting sepsis in emergency department
Hyun‐Kyung Park, Won Young Kim, Myung Chun Kim, Woong Jung, Byuk Sung Ko
SJR Q1Journal of Critical Care
EpidemiologyMedicine
2
Article|44 citations·2019
Impact of timing to source control in patients with septic shock: A prospective multi-center observational study
Hongjung Kim, Sung Phil Chung, Sung‐Hyuk Choi, Gu Hyun Kang, Tae Gun Shin, Kyuseok Kim, Yoo Seok Park, Kap Su Han, Han Sung Choi, Gil Joon Suh, Won Young Kim, Tae Ho Lim
SJR Q1Journal of Critical CareOA
EpidemiologyMedicine
3
Article|39 citations·2019
Time to Antibiotics and the Outcome of Patients with Septic Shock: A Propensity Score Analysis
Byuk Sung Ko, Sung‐Hyuk Choi, Gu Hyun Kang, Tae Gun Shin, Kyuseok Kim, You Hwan Jo, Seung Mok Ryoo, Youn‐Jung Kim, Yoo Seok Park, Woon Yong Kwon, Kap Su Han, Han Sung Choi
SJR Q1The American Journal of MedicineOA
EpidemiologyMedicine
4
Article|33 citations·2015
Impact of time to antibiotics on outcomes of chemotherapy-induced febrile neutropenia
Byuk Sung Ko, Shin Ahn, Yoon-Seon Lee, Won Young Kim, Kyung Soo Lim, Jae‐Lyun Lee
SJR Q1Supportive Care in Cancer
OncologyMedicine
5
Article|31 citations·2015
Biphasic reactions in patients with anaphylaxis treated with corticosteroids
Byuk Sung Ko, Won Young Kim, Seung Mok Ryoo, Shin Young Ahn, Chang Hwan Sohn, Dong‐Woo Seo, Yoon‐Seon Lee, Kyoung Soo Lim, Tae‐Bum Kim
SJR Q1Annals of Allergy Asthma & Immunology
Immunology and AllergyMedicine
6
Article|30 citations·2020
The effectiveness of a focused rapid response team on reducing the incidence of cardiac arrest in the general ward
Byuk Sung Ko, Tae Ho Lim, Jaehoon Oh, Yoonje Lee, Ina Yun, Mi Suk Yang, Chiwon Ahn, Hyunggoo Kang
SJR Q3MedicineOA

Rapid response teams have been adopted to prevent unexpected in-ward cardiac arrest. However, there is no convincing evidence of optimal operation with rapid response team. Our aim was to address the impact of focused rapid response team on the safety of patients in wards. Comparison of focused with extended rapid response teams was performed in single center. The extended team operated on adult patients in whole ward (both medical and nonmedical ward) 24 hours per day, 7 days per week during 20

Emergency MedicineMedicine
7
Article|25 citations·2015
Predicting the Occurrence of Hypotension in Stable Patients With Nonvariceal Upper Gastrointestinal Bleeding
Byuk Sung Ko, Won Young Kim, Seung Mok Ryoo, Shin Ahn, Chang Hwan Sohn, Dong Woo Seo, Yoon-Seon Lee, Kyoung Soo Lim, Hwoon‐Yong Jung
SJR Q1Critical Care Medicine

OBJECTIVES: It is difficult to assess risk in normotensive patients with upper gastrointestinal bleeding. The aim of this study was to evaluate whether the initial lactate value can predict the in-hospital occurrence of hypotension in stable patients with acute nonvariceal upper gastrointestinal bleeding. DESIGN: Retrospective, observational, single-center study. SETTING: Emergency department of a tertiary-care, university-affiliated hospital during a 5-year period. PATIENTS: Medical records of

GastroenterologyMedicine
8
Article|25 citations·2015
Early failure of noninvasive ventilation in chronic obstructive pulmonary disease with acute hypercapnic respiratory failure
Byuk Sung Ko, Shin Ahn, Kyung Soo Lim, Won‐Young Kim, Yoon‐Seon Lee, Jae Ho Lee
SJR Q1Internal and Emergency Medicine
Pulmonary and Respiratory MedicineMedicine
9
Article|24 citations·2016
Should adrenaline be used in patients with hemodynamically stable anaphylaxis? Incident case control study nested within a retrospective cohort study
Byuk Sung Ko, Ji Yeon Kim, Dong‐Woo Seo, Won Young Kim, Jae Ho Lee, Aziz Sheikh, David W. Bates
SJR Q1Scientific ReportsOA

Although adrenaline (epinephrine) is a cornerstone of initial anaphylaxis treatment, it is not often used. We sought to assess whether use of adrenaline in hemodynamically stable patients with anaphylaxis could prevent the development of hypotension. We conducted a retrospective cohort study of 761 adult patients with anaphylaxis presenting to the emergency department (ED) of a tertiary care hospital over a 10-year period. We divided the patients into two groups according to the occurrence of hy

Immunology and AllergyMedicine
10
Article|20 citations·2021
Impact of 1-Hour Bundle Achievement in Septic Shock
Byuk Sung Ko, Sung‐Hyuk Choi, Tae Gun Shin, Kyuseok Kim, You Hwan Jo, Seung Mok Ryoo, Yoo Seok Park, Woon Yong Kwon, Han Sung Choi, Sung Phil Chung, Gil Joon Suh, Hyunggoo Kang
SJR Q1Journal of Clinical MedicineOA

This study aimed to address the impact of 1-hr bundle achievement on outcomes in septic shock patients. Secondary analysis of multicenter prospectively collected data on septic shock patients who had undergone protocolized resuscitation bundle therapy at emergency departments was conducted. In-hospital mortality according to 1-h bundle achievement was compared using multivariable logistic regression analysis. Patients were also divided into 3 groups according to the time of bundle achievement an

EpidemiologyMedicine
11
Article|18 citations·2015
Prevalence and outcomes of endotracheal intubation–related cardiac arrest in the ED
Byuk Sung Ko, Ryeok Ahn, Seung Mok Ryoo, Shin Ahn, Chang Hwan Sohn, Dong Woo Seo, Kyoung Soo Lim, Won Young Kim
SJR Q1The American Journal of Emergency Medicine
Anesthesiology and Pain MedicineMedicine
12
Article|17 citations·2019
Risk of Venous Thromboembolism After Carbon Monoxide Poisoning: A Nationwide Population-Based Study
Yongil Cho, Hyunggoo Kang, Jaehoon Oh, Tae Ho Lim, Jiin Ryu, Byuk Sung Ko
SJR Q1Annals of Emergency Medicine
Molecular BiologyBiochemistry, Genetics and Molecular Biology
13
Article|14 citations·2020
Association of inferior vena cava diameter ratio measured on computed tomography scans with the outcome of patients with septic shock
Jee Hyeon Kim, Won Young Kim, Jaehoon Oh, Hyunggoo Kang, Tae Ho Lim, Byuk Sung Ko
SJR Q3MedicineOA

The collapsibility and diameter of the inferior vena cava (IVC) are known to predict the volume state in critically ill patients. However, no study has examined the prognostic value of the IVC diameter ratio measured on computed tomography (CT) in patients with septic shock. A retrospective observational study was conducted on adult septic shock patients visiting the emergency department at a university hospital in Korea. The IVC diameter ratio was calculated by dividing the maximal transverse a

EpidemiologyMedicine
14
Article|12 citations·2019
Comparison of risk scores and shock index in hemodynamically stable patients presenting to the emergency department with nonvariceal upper gastrointestinal bleeding
Dae Ho Jung, Byuk Sung Ko, Youn‐Jung Kim, Won Young Kim
SJR Q2European Journal of Gastroenterology & Hepatology

OBJECTIVE: Risk assessment in nonvariceal upper gastrointestinal bleeding (UGIB) is not well validated and remains unclear in hemodynamically stable patients at emergency department admission. We compared the prognostic value of risk-scoring systems for predicting adverse outcomes in patients with nonvariceal UGIB and normotension. PARTICIPANTS AND METHODS: A single-center prospective observational study was carried out. Patients with consecutive nonvariceal UGIB, presenting with normotension (s

GastroenterologyMedicine
15
Article|10 citations·2023
ROMI: A Real-Time Optical Digit Recognition Embedded System for Monitoring Patients in Intensive Care Units
Sanghoon Jeon, Byuk Sung Ko, Sang H. Son
SJR Q1SensorsOA

With advances in the Internet of Things, patients in intensive care units are constantly monitored to expedite emergencies. Due to the COVID-19 pandemic, non-face-to-face monitoring has been required for the safety of patients and medical staff. A control center monitors the vital signs of patients in ICUs. However, some medical devices, such as ventilators and infusion pumps, operate in a standalone fashion without communication capabilities, requiring medical staff to check them manually. One

Radiology, Nuclear Medicine and ImagingMedicine

Research Areas

EpidemiologyEmergency MedicineMolecular BiologyGastroenterologyPulmonary and Respiratory MedicineInfectious Diseases

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