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Predicting neurological complications post clipping surgery in unruptured intracranial aneurysms using the NEURO score: a multi-center retrospective cohort study
Yeon Ju Kim, Ah Ran Oh, Soo Jeong, Jungchan Park, Min-Ju Kim, et al.
Korean J Anesthesiol. 2025;78(5):443-452.

Statistical Round

September 18, 2025


Analysis of interaction effect between within- and between-subject factors in repeated measures analysis of variance for longitudinal data
Jonghae Kim, Jae Hong Park, Tae Kyun Kim
Korean J Anesthesiol. 2025;78(5):418-428.

Repeated measures analysis of variance (RM-ANOVA) is a specialized form of analysis of variance used for analyzing data involving repeated measurements, such as longitudinal data commonly encountered in anesthesia and pain medicine research. When data are collected at multiple time points across more than one group, RM-ANOVA evaluates the between-subject (group) effect, within-subject (time) effect, and interaction between these two factors. The group-by-time interaction effect indicates whether changes in an outcome variable over the study period differ among groups. Analyzing interaction contrasts between specific time points is particularly useful for...

Clinical Research Article

August 28, 2025


Analysis and development of risk prediction models for chronic opioid use after surgery: a cohort study using the nationwide database
Jonghae Kim, Hyun-Lim Yang, Eugene Kim, Hyung-Chul Lee, Hyun-Kyu Yoon, et al.
Korean J Anesthesiol. 2025;78(5):429-442.

Background: Chronic opioid use has become a socioeconomic as well as a medical problem. This study aimed to identify risk factors and develop prediction models for postoperative chronic opioid use (PCOU). Methods: This retrospective cohort study used data from the Korean National Health Insurance Service (NHIS) between January 2008 and December 2018. Of 2 077 825 patients aged seven years or older who underwent surgery, survived at least one year, and had no additional surgeries, 1 108 119 were randomly selected. Logistic regression (LR) and machine learning models were developed to identify risk factors for...

Clinical Research Article

April 25, 2025


Predicting neurological complications post clipping surgery in unruptured intracranial aneurysms using the NEURO score: a multi-center retrospective cohort study
Yeon Ju Kim, Ah Ran Oh, Soo Jeong, Jungchan Park, Min-Ju Kim, et al.
Korean J Anesthesiol. 2025;78(5):443-452.

Background: Predicting fatal neurological complications after clipping surgery for unruptured intracranial aneurysms (UIAs) is crucial; however, existing scoring systems are limited by narrow consideration of factors. We aimed to develop and validate a comprehensive risk stratification scoring system that incorporates patient-, aneurysm-, and operation-specific variables for predicting postoperative neurological complications in UIA surgeries. Methods: This multi-center retrospective cohort study was conducted from September 2018 to October 2023. Patients undergoing clipping surgery for UIAs were divided into development and validation sets based on the treating institution. A predictive score for postoperative neurological...

Clinical Research Article

February 3, 2025


Mortality and factors associated with acute exacerbation after non-cardiac surgery in patients with interstitial pneumonia: a retrospective study
Kaoru Umehara, Kazuhiro Shirozu, Taichi Ando, Kentaro Tokuda, Kei Makishima, et al.
Korean J Anesthesiol. 2025;78(5):453-461.

Background: Acute exacerbation of interstitial pneumonia (AE-IP) is associated with high mortality rates. Although the risk factors for AE-IP have been extensively studied, given the small sample sizes, only a few risk factors have been established. This study aimed to investigate the postoperative mortality and factors associated with AE-IP. Methods: This retrospective study included 482 patients with a preoperative diagnosis of IP who underwent noncardiac surgery between December 2012 and April 2020. AE-IP was diagnosed by a radiologist using computed tomography when worsening respiratory symptoms were...

Clinical Research Article

April 7, 2025


Association between preoperative anemia and postoperative delirium in elderly patients undergoing non-cardiac surgery: a retrospective observational study
Ah Ran Oh, Jungchan Park, Chung Soo Kim, Sangmin Maria Lee, Seung Yeon Yoo
Korean J Anesthesiol. 2025;78(5):462-470.

Background: The association between preoperative anemia and postoperative delirium (POD) is unclear. We sought to evaluate the effect of preoperative anemia on the risk of POD in elderly patients after non-cardiac surgery. Methods: We retrospectively analyzed 62 600 patients aged over 60 years undergoing non-cardiac surgery between January 2011 and June 2019. The patients were divided into two groups according to the presence of preoperative anemia defined as hemoglobin < 13 g/dl for men and < 12 g/dl for women. Anemia was further categorized into mild or moderate-to-severe anemia based on a...

Clinical Research Article

July 1, 2025


The 90% minimum effective volume and concentration of lidocaine for ultrasound-guided stellate ganglion blocks in adults: a biased-coin design, up-and-down sequential allocation trial
Shujun Sun, Qinghua Yin, Jiwei Shen, Yang Lv, Long Li, et al.
Korean J Anesthesiol. 2025;78(5):471-481.

Background: As ultrasound imaging technology matured, stellate ganglion blocks (SGBs) have become increasingly precise and safe, and their use in clinical practice has become widespread. However, the 90% minimum effective volume (MEV90) and concentration (MEC90) of lidocaine for ultrasound-guided SGB remain unclear. We aimed to determine the MEV90 and MEC90 of lidocaine used in ultrasound-guided SGBs. Methods: Patients with indications for an SGB were recruited, without restrictions on sex or disease type. In this two-part study, we first determined the MEV90, and then used these results to determine the MEC90. The...

Clinical Research Article

May 23, 2025


Diagnosis of flexor hallucis longus tenosynovitis using the cross-sectional area of the flexor hallucis longus tendon
SoYoon Park, Young Uk Kim
Korean J Anesthesiol. 2025;78(5):482-487.

Background: Flexor hallucis longus tenosynovitis (FHLTS) is the inflammation of the sheath through which the flexor hallucis longus tendon (FHLT) passes. The FHLT thickness (FHLTT) is correlated with ankle pain. Thus, the FHLTT is considered a characteristic FHLTS feature. However, asymmetrical thickening of the FHLT can occur at any point. Therefore, we used the FHLT cross-sectional area (FHLTCSA) as a new morphological parameter to diagnose FHLTS. Methods: 26 participants in the Control group (Group 1) and 26 in the FHLTS group (Group 2) underwent magnetic resonance imaging. The FHLTCSA was calculated...

Experimental Research Article

June 20, 2025


Effects of sugammadex and rocuronium on electro-mechanical activity of cardiac myocytes
Oguzhan Arun, Nihal Ozturk, Orhan Erkan, Semir Ozdemir, Funda Arun, et al.
Korean J Anesthesiol. 2025;78(5):488-503.

Background: Sugammadex reverses the effects of steroidal neuromuscular-blocking agents, such as rocuronium, by encapsulating these agents. Its cardiovascular adverse effects include QTc prolongation, hypotension, bradycardia, atrioventricular block, atrial fibrillation, and asystole. Additionally, rocuronium has cardiac side effects, such as bradycardia, hypotension, cardiac arrest, circulatory collapse, and ventricular fibrillation. Herein, we investigated the effects of sugammadex, rocuronium, and combined rocuronium + sugammadex on cardiac electrophysiological parameters. Methods: In vitro experiments were performed using ventricular myocytes obtained from male Wistar rats. Myocyte contraction and relaxation responses were recorded along with action potential (AP), and L-type calcium (ICaL) and potassium channel currents (Ito, Iss, and IK1). Results:...
Predicting neurological complications post clipping surgery in unruptured intracranial aneurysms using the NEURO score: a multi-center retrospective cohort study
Yeon Ju Kim, Ah Ran Oh, Soo Jeong, Jungchan Park, Min-Ju Kim, Seong-yoon Kim, Wonhyoung Park, Jae Sung Ahn, Chan-Sik Kim, Ji-Hoon Sim, et al.
Korean J Anesthesiol. 2025;78(5):443-452.

Clinical Research Article

April 25, 2025
A modified hip pericapsular nerve block on postoperative pain and functional outcome after total hip arthroplasty: a prospective, double-blind, randomized controlled study
Jian Hu, Qiuru Wang, Jie Hu, Chunyu Gong, Jing Yang
Korean J Anesthesiol. 2025;78(4):351-360.

Clinical Research Article

March 13, 2025
Association between preoperative oxygen reserve index and postoperative pulmonary complications: a prospective observational study
Sangho Lee, Halin Hong, Hyojin Cho, Sang-Wook Lee, Ann Hee You, Hee Yong Kang, Sung Wook Park, Mi Kyeong Kim, Jeong-Hyun Choi
Korean J Anesthesiol. 2025;78(3):224-235.

Clinical Research Article

February 17, 2025
Effect of remimazolam on postoperative delirium and cognitive function in adults undergoing general anesthesia or procedural sedation: a meta-analysis of randomized controlled trials
Ji-In Park, Hyo-Seok Na, Ji-Na Kim, Jung-Hee Ryu, Howon Jang, Hyun-Jung Shin
Korean J Anesthesiol. 2025;78(2):118-128.

Clinical Research Article

January 3, 2025
Comparison of high-flow nasal oxygenation and standard low-flow nasal oxygenation during rigid bronchoscopy: a randomized controlled trial
Hye Jin Kim, Chang Young Lee, Kyuho Lee, Namo Kim, Seungyeon Lee, Young Jun Oh
Korean J Anesthesiol. 2025;78(1):39-47.

Clinical Research Article

December 12, 2024
Effects of opioid-sparing general anesthesia on postoperative nausea and vomiting in laparoscopic gynecological surgery
Sun Woo Nam, Sang-Hwan Do, Jung-Won Hwang, Insun Park, Insung Hwang, Hyo-Seok Na
Korean J Anesthesiol. 2024;77(6):605-613.

Clinical Research Article

August 23, 2024
Effects of remimazolam versus dexmedetomidine on recovery after transcatheter aortic valve replacement under monitored anesthesia care: a propensity score-matched, non-inferiority study[commentary-article][commentary-article]
Ji-Hyeon Kim, Jae-Sik Nam, Wan-Woo Seo, Kyung-Woon Joung, Ji-Hyun Chin, Wook-Jong Kim, Dae-Kee Choi, In-Cheol Choi
Korean J Anesthesiol. 2024;77(5):537-545.

Clinical Research Article

July 23, 2024
The incidences of nausea and vomiting after general anesthesia with remimazolam versus sevoflurane: a prospective randomized controlled trial[commentary-article]
Yeong Min Yoo, Jae Hong Park, Ki Hwa Lee, Ah Hyeon Yi, Tae Kyun Kim
Korean J Anesthesiol. 2024;77(4):441-449.

Clinical Research Article

April 19, 2024
Comparison of analgesic effects between programmed intermittent epidural boluses and continuous epidural infusion after cesarean section: a randomized controlled study
Yu Jeong Bang, Heejoon Jeong, RyungA Kang, Ji-Hee Sung, Suk-Joo Choi, Soo-Young Oh, Tae Soo Hahm, Young Hee Shin, Yeon Woo Jeong, Soo Joo Choi, et al.
Korean J Anesthesiol. 2024;77(3):374-383.

Clinical Research Article

March 14, 2024
Association of preoperative blood glucose level with delirium after non-cardiac surgery in diabetic patients
Soo Jung Park, Ah Ran Oh, Jong-Hwan Lee, Kwangmo Yang, Jungchan Park
Korean J Anesthesiol. 2024;77(2):226-235.

Clinical Research Article

January 4, 2024
Perioperative adverse cardiac events and mortality after non-cardiac surgery: a multicenter study
Byungjin Choi, Ah Ran Oh, Jungchan Park, Jong-Hwan Lee, Kwangmo Yang, Dong Yun Lee, Sang Youl Rhee, Sang-Soo Kang, Seung Do Lee, Sun Hack Lee, et al.
Korean J Anesthesiol. 2024;77(1):66-76.

Clinical Research Article

May 10, 2023
Comparison of the pericapsular nerve group block with the intra-articular and quadratus lumborum blocks in primary total hip arthroplasty: a randomized controlled trial[commentary-article]
Tayfun Et, Muhammet Korkusuz
Korean J Anesthesiol. 2023;76(6):575-585.

Clinical Research Article

April 4, 2023
Usefulness of C-curved stylet for intubation with the C-MAC® Miller videolaryngoscope in neonates and infants: a prospective randomized controlled trial[commentary-article]
Jung-Bin Park, Pyo-Yoon Kang, Taeyup Kim, Sang-Hwan Ji, Young-Eun Jang, Eun-Hee Kim, Jin-Tae Kim, Hee-Soo Kim, Ji Hyun Lee
Korean J Anesthesiol. 2023;76(5):433-441.

Clinical Research Article

December 23, 2022
Effect of patient decision aids on choice between sugammadex and neostigmine in surgeries under general anesthesia: a multicenter randomized controlled trial
Li-Kai Wang, Yao-Tsung Lin, Jui-Tai Chen, Winnie Lan, Kuo-Chuan Hung, Jen-Yin Chen, Kuei-Jung Liu, Yu-Chun Yen, Yun-Yun Chou, Yih-Giun Cherng, et al.
Korean J Anesthesiol. 2023;76(4):280-289.

Clinical Research Article

December 5, 2022
Preemptive visceral analgesic effect of thoracic paravertebral block on postoperative opioid consumption in patients undergoing laparoscopic cholecystectomy: a prospective, randomized, assessor-blind study
Jong-Hyuk Lee, Chan-Sik Kim, Hyungtae Kim, Jae Moon Choi, Youngmu Kim, Sung-Moon Jeong, Seong-Soo Choi
Korean J Anesthesiol. 2023;76(3):203-212.

Clinical Research Article

December 21, 2022
Retrospective analysis of the incidence and predictors of postoperative nausea and vomiting after orthopedic surgery under spinal anesthesia
Jae-Woo Ju, Jina Kwon, Seokha Yoo, Ho-Jin Lee
Korean J Anesthesiol. 2023;76(2):99-106.

Clinical Research Article

July 13, 2022
Single-shot regional anesthesia for laparoscopic cholecystectomies: a systematic review and network meta-analysis[commentary-article]
Alessandro De Cassai, Nicolò Sella, Federico Geraldini, Serkan Tulgar, Ali Ahiskalioglu, Burhan Dost, Silvia Manfrin, Yunus Emre Karapinar, Greta Paganini, Muzeyyen Beldagli, et al.
Korean J Anesthesiol. 2023;76(1):34-46.

Clinical Research Article

November 8, 2022
Determination of the 95% effective dose of remimazolam to achieve loss of consciousness during anesthesia induction in different age groups
Juyeon Oh, Sung Yong Park, Sook Young Lee, Ju Yeol Song, Ga Yun Lee, Ji Hyun Park, Han Bum Joe
Korean J Anesthesiol. 2022;75(6):510-517.

Clinical Research Article

August 1, 2022
Prognostic value of left ventricular apical four-chamber longitudinal strain after heart valve surgery in real-world practice
Jae-Sik Nam, Ji-Hyun Chin, Hyun-Uk Kang, Juyoun Kim, Kyoung-Woon Joung, In-Cheol Choi
Korean J Anesthesiol. 2022;75(5):416-426.

Clinical Research Article

June 15, 2022
Video laryngoscope versus USB borescope-aided endotracheal intubation in adults with anticipated difficult airway: a prospective randomized controlled study
Mohamed Elshazly, Mark Medhat, Sahar Marzouk, Enas M. Samir
Korean J Anesthesiol. 2022;75(4):331-337.

Clinical Research Article

May 18, 2022
The effect of ultrasound-guided bilateral thoracic retrolaminar block on analgesia after pediatric open cardiac surgery: a randomized controlled double-blind study
Ibrahim Abdelbaser, Nabil A. Mageed, Sherif I. Elfayoumy, Mohamed Magdy, Mohamed M. Elmorsy, Mahmoud M. ALseoudy
Korean J Anesthesiol. 2022;75(3):276-282.

Clinical Research Article

January 12, 2022
Effect of chemotherapy on effect-site concentration of propofol for loss of consciousness in patients with colorectal cancer
Seunghee Ki, Yongwon Cho, Youngkyung Choi, Sehun Lim, Myounghun Kim, Jeonghan Lee
Korean J Anesthesiol. 2022;75(2):160-167.

Clinical Research Article

September 17, 2021
Effect of postoperative non-steroidal anti-inflammatory drugs on anastomotic leakage after pancreaticoduodenectomy
Susie Yoon, Hyerin Kim, Hye-Yeon Cho, Ho-Jin Lee, Hongbeom Kim, Hyung-Chul Lee, Jin-Young Jang
Korean J Anesthesiol. 2022;75(1):61-70.

Clinical Research Article

May 24, 2021
Analysis of endotracheal intubation-related judicial precedents in South Korea
Hye-Yeon Cho, SuHwan Shin, SangJin Lee, Susie Yoon, Ho-Jin Lee
Korean J Anesthesiol. 2021;74(6):506-513.

Clinical Research Article

March 25, 2021
Explanation of trial sequential analysis: using a post-hoc analysis of meta-analyses published in Korean Journal of Anesthesiology
Alessandro De Cassai, Martina Tassone, Federico Geraldini, Massimo Sergi, Nicolò Sella, Annalisa Boscolo, Marina Munari
Korean J Anesthesiol. 2021;74(5):383-393.

Clinical Research Article

July 20, 2021
Prediction of endotracheal tube size using a printed three-dimensional airway model in pediatric patients with congenital heart disease: a prospective, single-center, single-group study
Seyeon Park, Jisoo Ahn, Sung Uk Yoon, Ki Seok Choo, Hye-Jin Kim, Minwoo Chung, Hee Young Kim
Korean J Anesthesiol. 2021;74(4):333-341.

Clinical Research Article

May 31, 2021
Comparison between two different concentrations of a fixed dose of ropivacaine in interscalene brachial plexus block for pain management after arthroscopic shoulder surgery: a randomized clinical trial
Seung Cheol Lee, Joon Ho Jeong, Seong Yeop Jeong, Sung Wan Kim, Chan Jong Chung, So Ron Choi, Jeong Ho Kim, Sang Yoong Park
Korean J Anesthesiol. 2021;74(3):226-233.

Clinical Research Article

August 21, 2020
Four different methods of measuring cardiac index during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
Amon Heijne, Piet Krijtenburg, Andre Bremers, Gert Jan Scheffer, Ignacio Malagon, Cornelis Slagt
Korean J Anesthesiol. 2021;74(2):120-133.

Clinical Research Article

August 21, 2020
Demographic and clinical factors associated with same-day discharge and unplanned readmission following shoulder arthroplasty: a retrospective cohort study
Brittany N. Burton, John J. Finneran, Aaron Angerstein, Evelyn Ross, Ana Mitchell, Ruth S. Waterman, Ahmad Elsharydah, Engy T. Said, Rodney A. Gabriel
Korean J Anesthesiol. 2021;74(1):30-37.

Clinical Research Article

March 12, 2020
Effects of hypercarbia on arterial oxygenation during one-lung ventilation: prospective randomized crossover study
Junho Lee, Yesull Kim, Juhan Mun, Joseph Lee, Seonghoon Ko
Korean J Anesthesiol. 2020;73(6):534-541.

Clinical Research Article

May 28, 2020
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  • Axillary serratus anterior plane block as a novel approach to anesthetizing the intercostobrachial nerve for upper arm arteriovenous fistula creation surgery -three case reports-. Korean J Anesthesiol. 2025;78:279-284
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