1.Clinical Application of Pharmacogenomics in Stroke Management: Current Evidence and Future Directions
Keon-Joo LEE ; Minkyung KANG ; Eung Joon LEE ; Jaeseong OH ; Na-Young HAN ; Jeong-Yoon LEE ; Joo-Yeon LEE ; Soo Ji LEE ; Stéphanie DEBETTE ; Guillaume PARÉ ; Daniel WOO ; Andrew ELDEIRY ; Young Seo KIM ; Jinkwon KIM ; Jong-Moo PARK ; Juneyoung LEE ; Joohon SUNG ; Jay Chol CHOI ; Hee-Joon BAE
Journal of Stroke 2026;28(1):58-75
Pharmacogenomic variations may significantly influence responses to commonly prescribed stroke medications. Despite accumulating evidence, genetic testing has not yet been widely integrated into stroke care. This review summarizes current evidence and provides practical guidance for clinical implementation. Pharmacogenomic studies and clinical guidelines related to antiplatelet agents, anticoagulants, and statins were reviewed, with particular emphasis on East Asian populations. Substantial evidence supports genotype-guided use of clopidogrel (CYP2C19), warfarin (CYP2C9, VKORC1, CYP4F2), and statins (SLCO1B1, ABCG2). For aspirin, PTGS1/2 and PEAR1 variants have been investigated; however, current data remain insufficient for clinical application. Regarding direct oral anticoagulants (DOACs), candidate genes such as ABCB1 and CES1 demonstrate pharmacokinetic associations, though robust clinical outcome data are lacking. Distinct allele frequencies in East Asians—such as higher prevalence of CYP2C19 and ABCG2 variants—underscore the need for population-specific strategies. Beyond single-gene approaches, polygenic risk scores, pharmacogenomic panels, and integration with multi-omics data and artificial intelligence represent promising directions for personalized therapy. Pharmacogenomic testing can enhance stroke pharmacotherapy, particularly in populations with high frequencies of actionable variants. Broader implementation requires rapid testing platforms, clinician education, tailored clinical guidelines, and real-world validation of aspirin, DOACs, and multi-gene approaches. Future research should expand population-specific studies and integrate pharmacogenomics within the broader framework of precision medicine to ensure equitable clinical benefit.
2.Sextant Systematic Biopsy Versus Extended 12-Core Systematic Biopsy in Combined Biopsy for Prostate Cancer
Jae Hoon CHUNG ; Wan SONG ; Minyong KANG ; Hyun Hwan SUNG ; Hwang Gyun JEON ; Byong Chang JEONG ; Seong IL SEO ; Seong Soo JEON ; Hyun Moo LEE ; Byung Kwan PARK
Journal of Korean Medical Science 2024;39(7):e63-
Background:
This study assessed the comparative effectiveness of sextant and extended 12-core systematic biopsy within combined biopsy for the detection of prostate cancer.
Methods:
Patients who underwent combined biopsy targeting lesions with a Prostate Imaging Reporting and Data System (PI-RADS) score of 3–5 were assessed. Two specialists performed all combined cognitive biopsies. Both specialists performed target biopsies with five or more cores. One performed sextant systematic biopsies, and the other performed extended 12-core systematic biopsies. A total of 550 patients were analyzed.
Results:
Cases requiring systematic biopsy in combined biopsy exhibited a significant association with age ≥ 65 years (odds ratio [OR], 2.32; 95% confidence interval [CI], 1.25– 4.32; P = 0.008), PI-RADS score (OR, 2.32; 95% CI, 1.25–4.32; P = 0.008), and the number of systematic biopsy cores (OR, 3.69; 95% CI, 2.11–6.44; P < 0.001). In patients with an index lesion of PI-RADS 4, an extended 12-core systematic biopsy was required (target-negative/ systematic-positive or a greater Gleason score in the systematic biopsy than in the targeted biopsy) (P < 0.001).
Conclusion
During combined biopsy for prostate cancer in patients with PI-RADS 3 or 5, sextant systematic biopsy should be recommended over extended 12-core systematic biopsy when an effective targeted biopsy is performed.
3.Development of the Korean Quality Improvement Platform in Surgery (K-QIPS) program: a nationwide project to improve surgical quality and patient safety
Jeong-Moo LEE ; In Woong HAN ; Oh Chul KWON ; Hye Rim SEO ; Jipmin JUNG ; So Jeong YOON ; Ahram HAN ; Juhan LEE ; Soo Young LEE ; Hoseok SEO ; Wooil KWON ; Bang Wool EOM ; In-Seob LEE ; Ji Won PARK ; Hae Won LEE ; Ho Kyoung HWANG ; Suk-Hwan LEE ; Eung Jin SHIN ; Woo Yong LEE
Annals of Surgical Treatment and Research 2024;107(6):305-314
Purpose:
Improvements in surgical quality and patient safety are critical components of the healthcare system. Despite excellent cancer survival rates in Korea, there is a lack of standardized postoperative complication management systems.To address this gap, the Korean Surgical Society initiated the development of the Korean Quality Improvement Platform in Surgery (K-QIPS) program.
Methods:
K-QIPS was successfully launched in 87 general hospitals. This nationwide surgical quality improvement program covers 5 major surgical fields: gastric surgery, colorectal surgery, hepatectomy and liver transplantation, pancreatectomy, and kidney transplantation.
Results:
Common and surgery-specific complication platforms will be developed, and the program will work toward the implementation of an artificial intelligence-based complication prediction system and the provision of evidence-based feedback to participating institutions. K-QIPS represents a significant step toward improving surgical quality and patient safety in Korea.
Conclusion
This program aims to reduce postoperative complications, mortality, and medical costs by providing a standardized platform for complication management and prediction. The successful implementation of this nationwide project may provide a good model for other countries that are required to improve surgical outcomes and patient care.
4.Development of the Korean Quality Improvement Platform in Surgery (K-QIPS) program: a nationwide project to improve surgical quality and patient safety
Jeong-Moo LEE ; In Woong HAN ; Oh Chul KWON ; Hye Rim SEO ; Jipmin JUNG ; So Jeong YOON ; Ahram HAN ; Juhan LEE ; Soo Young LEE ; Hoseok SEO ; Wooil KWON ; Bang Wool EOM ; In-Seob LEE ; Ji Won PARK ; Hae Won LEE ; Ho Kyoung HWANG ; Suk-Hwan LEE ; Eung Jin SHIN ; Woo Yong LEE
Annals of Surgical Treatment and Research 2024;107(6):305-314
Purpose:
Improvements in surgical quality and patient safety are critical components of the healthcare system. Despite excellent cancer survival rates in Korea, there is a lack of standardized postoperative complication management systems.To address this gap, the Korean Surgical Society initiated the development of the Korean Quality Improvement Platform in Surgery (K-QIPS) program.
Methods:
K-QIPS was successfully launched in 87 general hospitals. This nationwide surgical quality improvement program covers 5 major surgical fields: gastric surgery, colorectal surgery, hepatectomy and liver transplantation, pancreatectomy, and kidney transplantation.
Results:
Common and surgery-specific complication platforms will be developed, and the program will work toward the implementation of an artificial intelligence-based complication prediction system and the provision of evidence-based feedback to participating institutions. K-QIPS represents a significant step toward improving surgical quality and patient safety in Korea.
Conclusion
This program aims to reduce postoperative complications, mortality, and medical costs by providing a standardized platform for complication management and prediction. The successful implementation of this nationwide project may provide a good model for other countries that are required to improve surgical outcomes and patient care.
5.Development of the Korean Quality Improvement Platform in Surgery (K-QIPS) program: a nationwide project to improve surgical quality and patient safety
Jeong-Moo LEE ; In Woong HAN ; Oh Chul KWON ; Hye Rim SEO ; Jipmin JUNG ; So Jeong YOON ; Ahram HAN ; Juhan LEE ; Soo Young LEE ; Hoseok SEO ; Wooil KWON ; Bang Wool EOM ; In-Seob LEE ; Ji Won PARK ; Hae Won LEE ; Ho Kyoung HWANG ; Suk-Hwan LEE ; Eung Jin SHIN ; Woo Yong LEE
Annals of Surgical Treatment and Research 2024;107(6):305-314
Purpose:
Improvements in surgical quality and patient safety are critical components of the healthcare system. Despite excellent cancer survival rates in Korea, there is a lack of standardized postoperative complication management systems.To address this gap, the Korean Surgical Society initiated the development of the Korean Quality Improvement Platform in Surgery (K-QIPS) program.
Methods:
K-QIPS was successfully launched in 87 general hospitals. This nationwide surgical quality improvement program covers 5 major surgical fields: gastric surgery, colorectal surgery, hepatectomy and liver transplantation, pancreatectomy, and kidney transplantation.
Results:
Common and surgery-specific complication platforms will be developed, and the program will work toward the implementation of an artificial intelligence-based complication prediction system and the provision of evidence-based feedback to participating institutions. K-QIPS represents a significant step toward improving surgical quality and patient safety in Korea.
Conclusion
This program aims to reduce postoperative complications, mortality, and medical costs by providing a standardized platform for complication management and prediction. The successful implementation of this nationwide project may provide a good model for other countries that are required to improve surgical outcomes and patient care.
6.Nomogram Using Prostate Health Index for Predicting Prostate Cancer in the Gray Zone:Prospective, Multicenter Study
Jae Hoon CHUNG ; Jeong Hyun KIM ; Sang Wook LEE ; Hongzoo PARK ; Geehyun SONG ; Wan SONG ; Minyong KANG ; Hyun Hwan SUNG ; Hwang Gyun JEON ; Byong Chang JEONG ; Seong IL SEO ; Hyun Moo LEE ; Seong Soo JEON
The World Journal of Men's Health 2024;42(1):168-177
Purpose:
To create a nomogram that can predict the probability of prostate cancer using prostate health index (PHI) and clinical parameters of patients. And the optimal cut-off value of PHI for prostate cancer was also assessed.
Materials and Methods:
A prospective, multi-center study was conducted. PHI was evaluated prior to biopsy in patients requiring prostate biopsy due to high prostate-specific antigen (PSA). Among screened 1,010 patients, 626 patients with clinically suspected prostate cancer with aged 40 to 85 years, and with PSA levels ranging from 2.5 to 10 ng/mL were analyzed.
Results:
Among 626 patients, 38.82% (243/626) and 22.52% (141/626) were diagnosed with prostate cancer and clinically significant prostate cancer, respectively. In the PSA 2.5 to 4 ng/mL group, the areas under the curve (AUCs) of the nomograms for overall prostate cancer and clinically significant prostate cancer were 0.796 (0.727–0.866; p<0.001), and 0.697 (0.598–0.795; p=0.001), respectively. In the PSA 4 to 10 ng/mL group, the AUCs of nomograms for overall prostate cancer and clinically significant prostate cancer were 0.812 (0.783–0.842; p<0.001), and 0.839 (0.810–0.869; p<0.001), respectively.
Conclusions
Even though external validations are necessary, a nomogram using PHI might improve the prediction of prostate cancer, reducing the need for prostate biopsies.
7.Persistence with Denosumab in Male Osteoporosis Patients: A Real-World, Non-Interventional Multicenter Study
Chaiho JEONG ; Jeongmin LEE ; Jinyoung KIM ; Jeonghoon HA ; Kwanhoon JO ; Yejee LIM ; Mee Kyoung KIM ; Hyuk-Sang KWON ; Tae-Seo SOHN ; Ki-Ho SONG ; Moo Il KANG ; Ki-Hyun BAEK
Endocrinology and Metabolism 2023;38(2):260-268
Background:
Persistence with denosumab in male patients has not been adequately investigated, although poor denosumab persistence is associated with a significant risk of rebound vertebral fractures.
Methods:
We retrospectively evaluated 294 Korean male osteoporosis patients treated with denosumab at three medical centers and examined their persistence with four doses of denosumab injection over 24 months of treatment. Persistence was defined as the extent to which a patient adhered to denosumab treatment in terms of the prescribed interval and dose, with a permissible gap of 8 weeks. For patients who missed their scheduled treatment appointment(s) during the follow-up period (i.e., no-shows), Cox proportional regression analysis was conducted to explore the factors associated with poor adherence. Several factors were considered, such as age, prior anti-osteoporotic drug use, the treatment provider’s medical specialty, the proximity to the medical center, and financial burdens of treatment.
Results:
Out of 294 male patients, 77 (26.2%) completed all four sequential rounds of the denosumab treatment. Out of 217 patients who did not complete the denosumab treatment, 138 (63.6%) missed the scheduled treatment(s). Missing treatment was significantly associated with age (odds ratio [OR], 1.03), prior bisphosphonate use (OR, 0.76), and prescription by non-endocrinologists (OR, 2.24). Denosumab was stopped in 44 (20.3%) patients due to medical errors, in 24 (11.1%) patients due to a T-score improvement over –2.5, and in five (2.3%) patients due to expected dental procedures.
Conclusion
Our study showed that only one-fourth of Korean male osteoporosis patients were fully adherent to 24 months of denosumab treatment.
8.Comparison of work stress, depression, insomnia, and fatigue of emergency department medical staff according to the emergency medical institutions and general characteristics during COVID-19 epidemic
Seung Ha YANG ; Jeong Hyeok KIM ; Dong Won KIM ; Tae Hun LEE ; Jeong Yeol SEO ; Moo Eob AHN
Journal of the Korean Society of Emergency Medicine 2023;34(5):437-452
Objective:
The objective of this study was to investigate job stress, depression, insomnia, and fatigue of coronavirus disease 2019 (COVID-19) medical staff and analyze the differences according to their general characteristics.
Methods:
The study enrolled 98 workers at emergency medical institutions with COVID-19 treatment facilities located in Gangwon Province. An online survey was used to protect personal information. Data were analyzed using the statistical program SPSS version 28. The differences in job stress, depression, insomnia, and fatigue of COVID-19 medical staff were verified by t-test and analysis of variance.
Results:
Analyzing job stress revealed that the average of the lowest relationship conflict stress for each sub-factor was 2.22, the average stress for job demand was the highest at 3.78, and the average whole job stress was 3.04. Contrarily, the average for depression was 1.69, insomnia 2.96, and fatigue 3.07. No statistically significant differences were observed for job stress, depression, insomnia, and fatigue when considering the type of workplace, gender, and occupation of COVID-19 medical staff. However, statistically significant differences were obtained in some variables including age, family members, working period, COVID-19 confirmed, and COVID-19-related education experience.
Conclusion
In this study, differences in job-related stress, depression, insomnia, and fatigue were confirmed considering the general characteristics of COVID-19 medical staff. In particular, the results of this study are significant since the difference in perceived stress in performing COVID-19 tasks was identified through empirical analysis by considering sub-factors of job stress.
10.Comparison of Perioperative and Oncologic Outcome Between Old Versus Oldest Old After Radical Cystectomy for Bladder Cancer
Sang Soo PARK ; Chung Un LEE ; Jae Hoon CHUNG ; Wan SONG ; Minyong KANG ; Hyun Hwan SUNG ; Hwang Gyun JEON ; Seong Il SEO ; Sung Soo JEON ; Hyun Moo LEE ; Byong Chang JEONG
Korean Journal of Urological Oncology 2022;20(3):186-196
Purpose:
The purpose of study was to compare oncologic outcomes (recurrence-free survival [RFS], cancer-specific survival [CSS], and overall survival [OS]) and early complication (within 30 days) after radical cystectomy (RC) between old patients (70–79 aged) and oldest-old patients (above 80).
Materials and Methods:
This retrospective study reviewed total 340 patients with urothelial carcinoma of bladder who received RC between November 1996 and December 2018. The patients were divided into 2 groups by age, 307 patients aged 70–79 and 33 patients aged above 80. Baseline characteristics, perioperative outcomes and early complication were compared between the 2 groups. Kaplan–Meier (K-M) survival analysis was used to estimate RFS, CSS, OS, and multivariable Cox proportional hazard models were used to identify factors predicting RFS, CSS, OS.
Results:
The results of both groups did not statistically differ from each other in most clinicopathologic baseline characteristics and perioperative information. Both groups showed similar 30-day complication rates (59.3% vs. 60.3%, p=0.210). K-M showed 3-year survival rate, RFS was shorter in oldest-old group (41.4% vs. 56.7%) but not statistically different (p=0.063). Oldest-old group showed similar 3-year CSS (78.1% vs. 74.6%, p=0.779) but worse OS (51% vs. 58%, p=0.047) compared with the old group. Common factor affecting RFS, CSS, and OS were T stage and N stage (all p<0.05). Age is not factor affecting RFS, CSS, and OS.
Conclusions
Oldest-old who received RC had similar perioperative, oncologic outcome and complication compared with the seventies. RC could be considered treatment option for selected oldest-old patients.

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