1.Incidence and Risk Factors of Deep Vein Thrombosis after Foot and Ankle Surgery
Young Uk PARK ; Hyong Nyun KIM ; Jae Ho CHO ; Taehun KIM ; Gunoo KANG ; Young Wook SEO
Clinics in Orthopedic Surgery 2024;16(6):994-1000
Background:
Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.
Methods:
Between September 2020 and July 2023, screening duplex ultrasonography was performed on 278 patients who underwent foot and ankle surgery and required immobilization. The findings from screening duplex ultrasonography were assessed in conjunction with the symptoms present at the time of diagnosis. Heterogeneous demographic data that could serve as potential risk factors for DVT, including diagnosis, body mass index, and other medical histories, were examined alongside pertinent surgeryrelated data, such as tourniquet time.
Results:
Among the 278 individuals, DVT occurred in 41 patients (14.7%). Among these, 92.7% originated at the calf level and the majority were asymptomatic. The cases originating above the calf accounted for 3 cases, representing 7.3% of patients diagnosed with DVT (1.1% of the entire screened population). Acute trauma, history of previous DVT, and old age were identified as statistically significant risk factors for DVT occurrence, with odds ratios of 2.44 (p = 0.04), 6.40 (p = 0.02), and 1.16 (p = 0.03), respectively.
Conclusions
After foot and ankle surgery, DVT occurred in 14.7% of cases. Acute trauma, history of DVT, and old age were identified as risk factors for DVT. These findings highlight the necessity of careful monitoring and appropriate prophylactic interventions for high-risk patients. Further investigation is required to determine effective prophylactic strategies for this patient population.
2.Incidence and Risk Factors of Deep Vein Thrombosis after Foot and Ankle Surgery
Young Uk PARK ; Hyong Nyun KIM ; Jae Ho CHO ; Taehun KIM ; Gunoo KANG ; Young Wook SEO
Clinics in Orthopedic Surgery 2024;16(6):994-1000
Background:
Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.
Methods:
Between September 2020 and July 2023, screening duplex ultrasonography was performed on 278 patients who underwent foot and ankle surgery and required immobilization. The findings from screening duplex ultrasonography were assessed in conjunction with the symptoms present at the time of diagnosis. Heterogeneous demographic data that could serve as potential risk factors for DVT, including diagnosis, body mass index, and other medical histories, were examined alongside pertinent surgeryrelated data, such as tourniquet time.
Results:
Among the 278 individuals, DVT occurred in 41 patients (14.7%). Among these, 92.7% originated at the calf level and the majority were asymptomatic. The cases originating above the calf accounted for 3 cases, representing 7.3% of patients diagnosed with DVT (1.1% of the entire screened population). Acute trauma, history of previous DVT, and old age were identified as statistically significant risk factors for DVT occurrence, with odds ratios of 2.44 (p = 0.04), 6.40 (p = 0.02), and 1.16 (p = 0.03), respectively.
Conclusions
After foot and ankle surgery, DVT occurred in 14.7% of cases. Acute trauma, history of DVT, and old age were identified as risk factors for DVT. These findings highlight the necessity of careful monitoring and appropriate prophylactic interventions for high-risk patients. Further investigation is required to determine effective prophylactic strategies for this patient population.
3.Incidence and Risk Factors of Deep Vein Thrombosis after Foot and Ankle Surgery
Young Uk PARK ; Hyong Nyun KIM ; Jae Ho CHO ; Taehun KIM ; Gunoo KANG ; Young Wook SEO
Clinics in Orthopedic Surgery 2024;16(6):994-1000
Background:
Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.
Methods:
Between September 2020 and July 2023, screening duplex ultrasonography was performed on 278 patients who underwent foot and ankle surgery and required immobilization. The findings from screening duplex ultrasonography were assessed in conjunction with the symptoms present at the time of diagnosis. Heterogeneous demographic data that could serve as potential risk factors for DVT, including diagnosis, body mass index, and other medical histories, were examined alongside pertinent surgeryrelated data, such as tourniquet time.
Results:
Among the 278 individuals, DVT occurred in 41 patients (14.7%). Among these, 92.7% originated at the calf level and the majority were asymptomatic. The cases originating above the calf accounted for 3 cases, representing 7.3% of patients diagnosed with DVT (1.1% of the entire screened population). Acute trauma, history of previous DVT, and old age were identified as statistically significant risk factors for DVT occurrence, with odds ratios of 2.44 (p = 0.04), 6.40 (p = 0.02), and 1.16 (p = 0.03), respectively.
Conclusions
After foot and ankle surgery, DVT occurred in 14.7% of cases. Acute trauma, history of DVT, and old age were identified as risk factors for DVT. These findings highlight the necessity of careful monitoring and appropriate prophylactic interventions for high-risk patients. Further investigation is required to determine effective prophylactic strategies for this patient population.
4.Incidence and Risk Factors of Deep Vein Thrombosis after Foot and Ankle Surgery
Young Uk PARK ; Hyong Nyun KIM ; Jae Ho CHO ; Taehun KIM ; Gunoo KANG ; Young Wook SEO
Clinics in Orthopedic Surgery 2024;16(6):994-1000
Background:
Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.
Methods:
Between September 2020 and July 2023, screening duplex ultrasonography was performed on 278 patients who underwent foot and ankle surgery and required immobilization. The findings from screening duplex ultrasonography were assessed in conjunction with the symptoms present at the time of diagnosis. Heterogeneous demographic data that could serve as potential risk factors for DVT, including diagnosis, body mass index, and other medical histories, were examined alongside pertinent surgeryrelated data, such as tourniquet time.
Results:
Among the 278 individuals, DVT occurred in 41 patients (14.7%). Among these, 92.7% originated at the calf level and the majority were asymptomatic. The cases originating above the calf accounted for 3 cases, representing 7.3% of patients diagnosed with DVT (1.1% of the entire screened population). Acute trauma, history of previous DVT, and old age were identified as statistically significant risk factors for DVT occurrence, with odds ratios of 2.44 (p = 0.04), 6.40 (p = 0.02), and 1.16 (p = 0.03), respectively.
Conclusions
After foot and ankle surgery, DVT occurred in 14.7% of cases. Acute trauma, history of DVT, and old age were identified as risk factors for DVT. These findings highlight the necessity of careful monitoring and appropriate prophylactic interventions for high-risk patients. Further investigation is required to determine effective prophylactic strategies for this patient population.
5.Study Design and Protocol for a Randomized Controlled Trial to Assess Long-Term Efficacy and Safety of a Triple Combination of Ezetimibe, Fenofibrate, and Moderate-Intensity Statin in Patients with Type 2 Diabetes and Modifiable Cardiovascular Risk Factors (ENSEMBLE)
Nam Hoon KIM ; Juneyoung LEE ; Suk CHON ; Jae Myung YU ; In-Kyung JEONG ; Soo LIM ; Won Jun KIM ; Keeho SONG ; Ho Chan CHO ; Hea Min YU ; Kyoung-Ah KIM ; Sang Soo KIM ; Soon Hee LEE ; Chong Hwa KIM ; Soo Heon KWAK ; Yong‐ho LEE ; Choon Hee CHUNG ; Sihoon LEE ; Heung Yong JIN ; Jae Hyuk LEE ; Gwanpyo KOH ; Sang-Yong KIM ; Jaetaek KIM ; Ju Hee LEE ; Tae Nyun KIM ; Hyun Jeong JEON ; Ji Hyun LEE ; Jae-Han JEON ; Hye Jin YOO ; Hee Kyung KIM ; Hyeong-Kyu PARK ; Il Seong NAM-GOONG ; Seongbin HONG ; Chul Woo AHN ; Ji Hee YU ; Jong Heon PARK ; Keun-Gyu PARK ; Chan Ho PARK ; Kyong Hye JOUNG ; Ohk-Hyun RYU ; Keun Yong PARK ; Eun-Gyoung HONG ; Bong-Soo CHA ; Kyu Chang WON ; Yoon-Sok CHUNG ; Sin Gon KIM
Endocrinology and Metabolism 2024;39(5):722-731
Background:
Atherogenic dyslipidemia, which is frequently associated with type 2 diabetes (T2D) and insulin resistance, contributes to the development of vascular complications. Statin therapy is the primary approach to dyslipidemia management in T2D, however, the role of non-statin therapy remains unclear. Ezetimibe reduces cholesterol burden by inhibiting intestinal cholesterol absorption. Fibrates lower triglyceride levels and increase high-density lipoprotein cholesterol (HDL-C) levels via peroxisome proliferator- activated receptor alpha agonism. Therefore, when combined, these drugs effectively lower non-HDL-C levels. Despite this, few clinical trials have specifically targeted non-HDL-C, and the efficacy of triple combination therapies, including statins, ezetimibe, and fibrates, has yet to be determined.
Methods:
This is a multicenter, prospective, randomized, open-label, active-comparator controlled trial involving 3,958 eligible participants with T2D, cardiovascular risk factors, and elevated non-HDL-C (≥100 mg/dL). Participants, already on moderate-intensity statins, will be randomly assigned to either Ezefeno (ezetimibe/fenofibrate) addition or statin dose-escalation. The primary end point is the development of a composite of major adverse cardiovascular and diabetic microvascular events over 48 months.
Conclusion
This trial aims to assess whether combining statins, ezetimibe, and fenofibrate is as effective as, or possibly superior to, statin monotherapy intensification in lowering cardiovascular and microvascular disease risk for patients with T2D. This could propose a novel therapeutic approach for managing dyslipidemia in T2D.
6.A Study of the Reliability and Validity of the Korean Version of DSM-5 Symptom Measure–Inattention and Anger for Parent and Guardian of Child Age 6 to 17
Shin MIN-SUP ; Bung-Nyun KIM ; Minji CHO ; Mirae JANG ; Hanbyul SHIN ; Ryemi DO ; Hyungseo PARK ; Narae YOON ; Gahye NOH ; Jae-Won SONG ; Yebin AHN ; Jiyoon SHIN ; Soomin JANG ; Eunjung NOH ; Eunhwa LEE
Journal of the Korean Academy of Child and Adolescent Psychiatry 2023;34(1):59-59
7.Atomoxetine and Fluoxetine Activate AMPK-ACC-CPT1 Pathway in Human SH-SY5Y and U-87 MG Cells
Songhee JEON ; Jeong-Eun PARK ; Young Ho DO ; Renata SANTOS ; Seong Mi LEE ; Byung-Nyun KIM ; Jae Hoon CHEONG ; Yeni KIM
Psychiatry Investigation 2023;20(3):212-219
Objective:
Atomoxetine and fluoxetine are psychopharmacologic agents associated with loss of appetite and weight. Adenosine monophosphate-activated protein kinase (AMPK) is the cellular energy sensor that regulate metabolism and energy, being activated by fasting and inhibited by feeding in the hypothalamus.
Methods:
Human brain cell lines (SH-SY5Y and U-87 MG cells) were used to study the outcome of atomoxetine and fluoxetine treatment in the activity of AMPK-acetyl-CoA carboxylase (ACC)- carnitine palmitoyl transferase 1 (CPT1) pathway and upstream regulation by calcium/calmodulin-dependent kinase kinase β (CaMKKβ) using immunoblotting and CPT1 enzymatic activity measures.
Results:
Phosphorylation of AMPK and ACC increased significantly after atomoxetine and fluoxetine treatment in the first 30–60 minutes of treatment in the two cell lines. Activation of AMPK and inhibition of ACC was associated with an increase by 5-fold of mitochondrial CPT1 activity. Although the neuronal isoform CPT1C could be detected by immunoblotting, activity was not changed by the drug treatments. In addition, the increase in phospho-AMPK and phospho-ACC expression induced by atomoxetine was abolished by treatment with STO-609, a CaMKKβ inhibitor, indicating that AMPK-ACC-CPT1 pathway is activated through CaMKKβ phosphorylation.
Conclusion
These findings indicate that at the cellular level atomoxetine and fluoxetine treatments may activate AMPK-ACC-CPT1 pathways through CaMKKβ in human SH-SY5Y and U-87 MG cells.
8.Korean guidelines for the management of gout
Jennifer Jooha LEE ; Ji Soo LEE ; Min Kyung CHUNG ; Joong Kyong AHN ; Hyo-Jin CHOI ; Seung-Jae HONG ; Chong-Hyeon YOON ; Su-Hyun KIM ; Kyung-Hwan JEONG ; Jong-Woo KIM ; Bo-Yeon KIM ; Jin-Ho SHIN ; Woo Gyu KIM ; Soo-Young KIM ; Hyun-Jung KIM ; Jeong-Soo SONG ; Jae-Bum JUN ; Hyun-Ah PARK ; Shung Chull CHAE ; Bum Soon CHOI ; Tae Nyun KIM ; Hyun Ah KIM
The Korean Journal of Internal Medicine 2023;38(5):641-650
Gout is the most common form of arthritis, with the prevalence increasing worldwide. The present treatment guidelines provide recommendations for the appropriate treatment of acute gout, management during the inter-critical period, and prevention of chronic complications. The guidelines were developed based on evidence-based medicine and draft recommendations finalized after expert consensus. These guidelines are designed to provide clinicians with clinical evidence to enable efficient treatment of gout.
9.ARID1A Mutation from Targeted Next-Generation Sequencing Predicts Primary Resistance to Gemcitabine and Cisplatin Chemotherapy in Advanced Biliary Tract Cancer
Sung Hwan LEE ; Jaekyung CHEON ; Seoyoung LEE ; Beodeul KANG ; Chan KIM ; Hyo Sup SHIM ; Young Nyun PARK ; Sanghoon JUNG ; Sung Hoon CHOI ; Hye Jin CHOI ; Choong-kun LEE ; Hong Jae CHON
Cancer Research and Treatment 2023;55(4):1291-1302
Purpose:
There are clinical unmet needs in predicting therapeutic response and precise strategy for the patient with advanced biliary tract cancer (BTC). We aimed to identify genomic alterations predicting therapeutic response and resistance to gemcitabine and cisplatin (Gem/Cis)-based chemotherapy in advanced BTC.
Materials and Methods:
Genomic analysis of advanced BTC multi-institutional cohorts was performed using targeted panel sequencing. Genomic alterations were analyzed integrating patients’ clinicopathologic data, including clinical outcomes of Gem/Cis-based therapy. Significance of genetic alterations was validated using clinical next-generation sequencing (NGS) cohorts from public repositories and drug sensitivity data from cancer cell lines.
Results:
193 BTC patients from three cancer centers were analyzed. Most frequent genomic alterations were TP53 (55.5%), KRAS (22.8%), ARID1A (10.4%) alterations, and ERBB2 amplification (9.8%). Among 177 patients with BTC receiving Gem/Cis-based chemotherapy, ARID1A alteration was the only independent predictive molecular marker of primary resistance showing disease progression for 1st-line chemotherapy in the multivariate regression model (odds ratio, 3.12; p=0.046). In addition, ARID1A alteration was significantly correlated with inferior progression-free survival on Gem/Cis-based chemotherapy in the overall patient population (p=0.033) and in patients with extrahepatic cholangiocarcinoma (CCA) (p=0.041). External validation using public repository NGS revealed that ARID1A mutation was a significant predictor for poor survival in BTC patients. Investigation of multi-OMICs drug sensitivity data from cancer cell lines revealed that cisplatin-resistance was exclusively observed in ARID1A mutant bile duct cancer cells.
Conclusion
Integrative analysis with genomic alterations and clinical outcomes of the first-line Gem/Cis-based chemotherapy in advanced BTC revealed that patients with ARID1Aalterations showed a significant worse clinical outcome, especially in extrahepatic CCA. Well-designed prospective studies are mandatory to validate the predictive role of ARID1Amutation.
10.The Expression of Programmed Death-Ligand 1 on Immune Cells Is Related to a Better Prognosis in Biliary Tract Cancer
Sung Chan KWON ; Seungmin BANG ; Young Nyun PARK ; Ji Hoon PARK ; So Jeong KIM ; Jung Hyun JO ; Moon Jae CHUNG ; Jeong Youp PARK ; Seung Woo PARK ; Si Young SONG ; Eunhyang PARK ; Hee Seung LEE
Gut and Liver 2023;17(6):933-941
Background/Aims:
Programmed death-ligand 1 (PD-L1) expression in tumor cells is associated with a poor biliary tract cancer (BTC) prognosis; tumor-infiltrating immune cells in the tumor microenvironment are associated with a better prognosis. The effect of PD-L1 expression on immune cells on survival is unclear. We investigated the relationship between PD-L1 expression in immune cells and BTC prognosis.
Methods:
PD-L1 expression was evaluated using an anti-PD-L1 22C3 mouse monoclonal primary antibody, and its relationships with clinical characteristics and prognosis were analyzed using the Cox proportional hazard model to investigate the prognostic performance of PD-L1 in BTC.
Results:
Among 144 analyzed cases, patients with positive PD-L1 expression in tumor cells and negative PD-L1 expression in immune cells showed poorer overall survival rates than those exhibiting other expressions (tumor cells: hazard ratio [HR]=1.023, p<0.001; immune cells: HR=0.983, p=0.021). PD-L1 expression in tumor cells was an independent predictor of poor overall survival (HR=1.024, p<0.001). In contrast, PD-L1 expression in immune cells was a predictive marker of good prognosis (HR=0.983, p=0.018).
Conclusions
PD-L1 expression in immune cells may be used as an independent factor to evaluate the prognosis of patients with BTC.

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