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Cheol Ho Jang

Yonsei University · 医学

研究室紹介

Professor Cheol Ho Jang's research lab specializes in clinical anesthesiology with a focus on airway management, intraoperative physiological monitoring, and patient safety during complex surgical procedures. The lab investigates optimal anesthetic techniques—particularly remifentanil dosing and airway device positioning—to prevent complications such as coughing, desaturation, and endobronchial intubation. It also emphasizes simulation-based training to enhance anesthesiologists’ technical and non-technical skills, especially in high-risk scenarios like robotic surgery and laryngomicrosurgery. The lab’s work addresses the unique challenges of elderly patients, aiming to improve perioperative outcomes through a deeper understanding of age-related physiological changes.

airway managementanesthetic techniquessimulation trainingelderly anesthesiaintraoperative monitoring

Research Overview

Papers
116
Total Citations
762
Papers (5y)
6
Primary Field
医学

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
6total
2022
2023
2024
2025
2026
Citations per year (5y)
37total
20222023202420252026

Selected Papers

15
1
Article|35 citations·2010
The displacement of the tracheal tube during robot-assisted radical prostatectomy
Chul Ho Chang, Hyun Kyu Lee, Soon Ho Nam
SJR Q1European Journal of AnaesthesiologyOA

The confirmation of the tracheal tube position is recommended after pneumoperitoneum in steep Trendelenburg position during robot-assisted prostatectomy because the displacement of the tracheal tube may result in endobronchial intubation due to shortening of the carina-to-tube tip distance.

SurgeryMedicine
2
Article|32 citations·2013
Effect‐site concentration of remifentanil to prevent cough after laryngomicrosurgery
Chul Ho Chang, Jong Wha Lee, Jong Rim Choi, Yon Hee Shim
SJR Q1The LaryngoscopeOA

OBJECTIVES/HYPOTHESIS: The aim of this study was to discover the optimal effect-site concentration of remifentanil for cough prevention that does not delay awakening or cause respiratory depression during emergence from anesthesia with propofol and remifentanil in laryngomicrosurgery patients. STUDY DESIGN: Prospective, randomized, controlled trial. METHODS: One hundred five patients were randomly assigned to maintain an effect-site concentration (Ce) of remifentanil at a predetermined value of

Anesthesiology and Pain MedicineMedicine
3
Article|24 citations·2013
Medical simulation is needed in anesthesia training to achieve patient's safety
Chul Ho Chang
SJR Q1Korean journal of anesthesiologyOA

Many medical schools and hospitals throughout the world are equipped with a simulation center for the purpose of training anesthesiologists to perform both technical and non-technical skills. Because induction, maintenance, and emergence of general anesthesia are critical to patient welfare, various simulation mannequins and tools are utilized for the purpose of training anesthesiologists for safer patient care. Traditionally, anesthesia residency training mostly consisted of didactic lectures a

PhysiologyMedicine
4
Article|23 citations·2013
Increase in Airway Pressure Resulting From Prone Position Patient Placing May Predict Intraoperative Surgical Blood Loss
Jae Chul Koh, Jong Seok Lee, Dong Woo Han, Satbyul Choi, Chul Ho Chang
SJR Q1SpineOA

Increase in airway pressure resulting from placement into a prone position may predict intraoperative surgical blood loss.

SurgeryMedicine
5
Article|19 citations·2008
Optimal conditions for Laryngeal Mask Airway insertion in children can be determined by the trapezius squeezing test
Chul Ho Chang, Yon Hee Shim, Yang‐Sik Shin, Ki‐Young Lee
SJR Q1Journal of Clinical AnesthesiaOA
Anesthesiology and Pain MedicineMedicine
6
Article|18 citations·2017
Normal aging: definition and physiologic changes
Chul Ho Chang, Ki‐Young Lee, Yon Hee Shim
SJR Q4Journal of Korean Medical AssociationOA

Aging is a process of the progressive functional decline with time, leading to disability, dependence, morbidity, and mortality. While the organ function in the elderly is relatively uncompromised under basal conditions, their ability to tolerate increased physiologic stress is reduced. And the extent and onset of the deterioration in functional reserve is quite diverse from patient to patient. The aging population is rapidly growing and their medical management is becoming one of the greatest c

Developmental NeuroscienceNeuroscience
7
Article|12 citations·2020
Utility of oxygen insufflation through working channel during fiberoptic intubation in apneic patients: a prospective randomized controlled study
Go Un Roh, Joon Gwon Kang, Jung Youn Han, Chul Ho Chang
SJR Q1BMC AnesthesiologyOA

Abstract Background Airway management is a part of routine anesthetic procedures; however, serious complications, including hypoxia and death, are known to occur in cases of difficult airways. Therefore, alternative techniques such as fiberoptic bronchoscope-assisted intubation (FOB intubation) should be considered, although this method requires more time and offers a limited visual field than does intubation with a direct laryngoscope. Oxygen insufflation through the working channel during FOB

Anesthesiology and Pain MedicineMedicine
8
Article|8 citations·2017
Preparation of lidocaine-loaded porous Poly (lactic-co-glycolic acid) microparticles using microfluidic flow focusing and phosphate buffer solution porogen
Chul Min Kim, Asad Ullah, Chul Ho Chang, Gyu Man Kim
SJR Q2International Journal of Precision Engineering and ManufacturingOA
Biomedical EngineeringEngineering
9
Article|7 citations·2020
Fabrication of Microfluidic Cell Culture Platform for Real-time Monitoring of Lidocaine Concentration
Hye Jin Choi, Tran Bao Ngoc, Hyunjik Song, Chul Ho Chang, Gyu Man Kim
SJR Q2International Journal of Precision Engineering and ManufacturingOA
Biomedical EngineeringEngineering
10
Article|7 citations·2011
Comparison of the trapezius squeezing test and jaw thrust as indicators for laryngeal mask airway insertion in adults
Chul Ho Chang, Soo Hwan Kim, Yon Hee Shim, Jae‐Hoon Kim, Yang‐Sik Shin
SJR Q1Korean journal of anesthesiologyOA

The trapezius squeezing test is a superior indicator of an adequate condition for LMA insertion compared to the jaw thrust maneuver in adults under sevoflurane anesthesia.

Anesthesiology and Pain MedicineMedicine
11
Article|6 citations·2010
Effects of propofol on β-adrenoceptor-mediated signal transduction in cardiac muscle; role of cAMP
Chul Ho Chang, Go Un Roh, Wyun Kon Park
SJR Q1Korean journal of anesthesiologyOA

BACKGROUND: Propofol may decrease myocardial contractility via actions on the beta-adrenoceptor-mediated signal transduction. The aim of this study was to evaluate the effect of propofol via beta-adrenoceptor-mediated signal transduction by measuring the tissue levels of cAMP (cyclic adenosine monophosphate). METHODS: The effects of propofol on beta-adrenoceptor mediated cascades were measured with cAMP concentrations, which were stimulated by agonists (l-isoproterenol, GTPgammaS, and forskolin)

Pathology and Forensic MedicineMedicine
12
Article|6 citations·2009
The usefulness of the laryngeal mask airway Fastrach for laryngeal surgery
Chul Ho Chang, Sun Joon Bai, Mi Kyeong Kim, Sang Beom Nam
SJR Q1European Journal of AnaesthesiologyOA

The LMA Fastrach during fibreoptic bronchoscope-guided laryngeal surgery provided a good surgical field and haemodynamic stability without additional risk compared with the conventional suspension laryngoscope.

Anesthesiology and Pain MedicineMedicine
13
Article|4 citations·2007
Changes in Ionized and Total Magnesium Concentration during Spinal Surgery
Chul Ho Chang, Sang Beom Nam, Jong Seok Lee, Dong Woo Han, Hyun Kyu Lee, Cheung Soo Shin
SJR Q1Korean Journal of AnesthesiologyOA

The incidence of postoperative hypomagnesemia in patients undergoing spinal surgery has been reported to be 70%. Ionized magnesium is considered to be the biologically active form, but until the early 1990s, only the total magnesium concentration could be measured. Currently, the ionized magnesium concentration as well as total magnesium concentration can be assessed due in part to the development of a selective electrode. The aim of this study was to more fully characterize the changes in the t

Nutrition and DieteticsNursing
14
Article|3 citations·2003
The Value of the Total Lymphocyte Count as a Risk Index of Hospital Infection in Critically Ill Patients
Chul Ho Chang, Chang Gyoo Byun, Man Woo Lee, Joo Young Jeong, Cheung Soo Shin
SJR Q1Korean Journal of Anesthesiology

= Abstract = Background: Lymphocytopenia is a common finding in critically ill patients while lymphocyte depletion in critically ill patients is presumed to have little clinical significance. However a total lymphocyte count has been reported to provide prognostic inform ation in surgical patients. T he aim of this study was to evaluate the association of a total lymphocyte count (TLC with a prognostic criterion in critically ill patients. Methods: The patients were divided into three groups acc

OncologyMedicine
15
Article|3 citations·2003
Comparative Study of Isobaric Bupivacaine Spinal Anesthesia in the Supine and Prone Positions
Chul Ho Chang, Yong Taek Nam, Joo Young Jeong, Sung In Choi, Youn Woo Lee
SJR Q1Korean Journal of AnesthesiologyOA

Background: Isobaric bupivacaine has same baricity as cerebrospinal fluid and therefore, so it remains at the level of injection. But, the risk of high spinal anesthesia exist, because increased intrathecal pressure is possible in prone position as isobaric bupivacaine has mild hypobaricity at body temperature but is isobaric at room temperature. So, we studied the influence of the position of the blockade of spinal anesthesia in isobaric spinal anesthesia.

SurgeryMedicine

Research Areas

Anesthesiology and Pain MedicineSurgeryPulmonary and Respiratory MedicineCardiology and Cardiovascular MedicineEmergency MedicineCritical Care and Intensive Care Medicine

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