1.Moderate-Intensity Rosuvastatin/Ezetimibe Combination versus Quadruple-Dose Rosuvastatin Monotherapy: A Meta-Analysis and Systemic Review
Yura KANG ; Jung Mi PARK ; Sang-Hak LEE
Yonsei Medical Journal 2024;65(1):19-26
Purpose:
There are few studies in the literature on the dosage of statin that equivalently reduces low-density lipoprotein cholesterol (LDL-C) compared to an ezetimibe combination and whether such regimens have differences in safety. We compared the lipidmodifying efficacy and safety of 5 mg rosuvastatin/10 mg ezetimibe to those of 20 mg rosuvastatin.
Materials and Methods:
A literature search was conducted using the PubMed, EMBASE, Cochrane, Web of Sciences, and SCOPUS databases up to December 2021. Human studies investigating the two aforementioned regimens with a randomized controlled design were selected. Outcome variables included the percentage reduction in LDL-C and other lipid parameters and rates of composite adverse events (AEs), including muscle-related symptoms. A random-effects meta-analysis was performed after heterogeneity testing between studies.
Results:
Seven studies were included in this meta-analysis. The percentage LDL-C reduction did not differ between the combination and monotherapy groups [standardized mean difference (SMD) 0.08; 95% confidence interval (CI) -0.09 to 0.26; p=0.35]. The risk of composite AEs (odds ratio 0.50; 95% CI 0.15 to 1.72; p=0.27) of the combination was not different compared to the monotherapy group. The percentage of total cholesterol reduction was greater in the combination group (SMD 0.22; p=0.02), whereas that of triglyceride reduction and high-density lipoprotein cholesterol elevation did not differ between the two groups.
Conclusion
This meta-analysis showed that 5 mg rosuvastatin/10 mg ezetimibe had largely comparable lipid-modifying efficacy and tolerability as 20 mg rosuvastatin.
2.An Unusual Cause of Knee Pain: Periosteal Glomus Tumor of the Distal Femur
Hyung Joon CHO ; Kyung Sik AHN ; Chang Ho KANG ; Yura KIM ; Jong Hoon PARK
Journal of the Korean Radiological Society 2018;79(2):106-109
Glomus tumors are rare neoplasms that characteristically occur in subungual regions, but may also be found in other regions of the body. The clinical diagnosis of this tumor may be difficult if the tumor is located in an extradigital site. Most extradigital glomus tumors form in superficial locations. Herein, we present the case of a 34-year-old woman who experienced chronic knee pain with pinpoint tenderness resulting from a deep-seated periosteal glomus tumor of the distal femur. Extradigital glomus tumors should be considered in the differential diagnosis when characteristic clinical features and imaging findings indicative of glomus tumors are present, even if the tumor is located within deep tissues.
3.Tricuspid Valve Imaging and Right Ventricular Function Analysis Using Cardiac CT and MRI
Yura AHN ; Hyun Jung KOO ; Joon-Won KANG ; Dong Hyun YANG
Korean Journal of Radiology 2021;22(12):1946-1963
Cardiac computed tomography (CT) and cardiac magnetic resonance imaging (CMR) can reveal the detailed anatomy and function of the tricuspid valve and right ventricle (RV). Quantification of tricuspid regurgitation (TR) and analysis of RV function have prognostic implications. With the recently available transcatheter treatment options for diseases of the tricuspid valve, evaluation of the tricuspid valve using CT and CMR has become important in terms of patient selection and procedural guidance. Moreover, CT enables post-procedural investigation of the causes of valve dysfunction, such as pannus or thrombus. This review describes the anatomy of the tricuspid valve and CT and CMR imaging protocols for right heart evaluation, including RV function and TR analyses. We also demonstrate the pre-procedural planning for transcatheter treatment of TR and imaging of postoperative complications using CT.
4.Xanthoma Simulating Plantar Fibromatosis on Sonography.
Yura KIM ; Kyung Sik AHN ; Chang Ho KANG
Journal of the Korean Society of Medical Ultrasound 2013;32(3):189-192
Xanthomas are local collections of lipid-laden macrophages and collagen, which are usually associated with impaired lipoprotein metabolism. Xanthomas occur frequently in the skin, subcutis, or tendon, and occasionally in the plantar fascia. Small numbers of xanthomas have been surgically confirmed in the plantar fascia and their sonographic appearance has not been described in the literature. We present sonographic findings of a pathologically proven plantar fascia xanthoma, which was initially mistaken as plantar fibromatosis.
Collagen
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Fascia
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Fibroma*
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Foot
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Lipoproteins
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Macrophages
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Metabolism
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Skin
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Tendons
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Ultrasonography
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Xanthomatosis*
5.Stress Fracture of the Capitate
Hyung Joon CHO ; Ki Taek HONG ; Chang Ho KANG ; Kyung Sik AHN ; Yura KIM ; Sung Tae HWANG
Investigative Magnetic Resonance Imaging 2018;22(2):135-139
Most capitate fractures occur in association with additional carpal injuries, particularly scaphoid fractures. Isolated fractures of the capitate account for only 0.3% of carpal injuries, and stress fractures are one form of this fracture. We report the case of a 20-year-old male who had a stress fracture of the capitate after serving as an honor guard in the military. Conventional radiographs and computed tomography of the right wrist revealed a minimally displaced fracture line located at the midcarpal aspect of the right capitate. A magnetic resonance imaging scan demonstrates a subarticular capitate fracture with diffuse bone marrow edema, small osteophytes, and irregularity of the midcarpal articular cartilage. We also review the carpal kinematics which possibly caused the stress fracture. Although stress fractures of the capitate are rare, they should also be accounted for with patients who perform repetitive motions of the wrist to a considerable extent.
Biomechanical Phenomena
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Bone Marrow
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Capitate Bone
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Carpal Bones
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Cartilage, Articular
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Edema
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Fractures, Stress
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Humans
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Magnetic Resonance Imaging
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Male
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Military Personnel
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Multidetector Computed Tomography
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Osteophyte
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Wrist
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Young Adult
6.Clinical Effects of a Home Care Pilot Program for Patients with Type 1 Diabetes Mellitus: A Retrospective Cohort Study
Sejeong LEE ; KyungYi KIM ; Ji Eun KIM ; Yura HYUN ; Minyoung LEE ; Myung-Il HAHM ; Sang Gyu LEE ; Eun Seok KANG
Diabetes & Metabolism Journal 2023;47(5):693-702
Background:
Given the importance of continuous self-care for people with type 1 diabetes mellitus (T1DM), the Ministry of Health and Welfare of Korea launched a pilot program for chronic disease management. Herein, we applied a home care pilot program to people with T1DM to investigate its effects.
Methods:
This retrospective cohort study was conducted at a single tertiary hospital (January 2019 to October 2021). A multidisciplinary team comprising doctors, nurses, and clinical nutritionists provided specialized education and periodically assessed patients’ health status through phone calls or text messages. A linear mixed model adjusting for age, sex, and body mass index was used to analyze the glycemic control changes before and after implementing the program between the intervention and control groups.
Results:
Among 408 people with T1DM, 196 were enrolled in the intervention group and 212 in the control group. The reduction in glycosylated hemoglobin (HbA1c) after the program was significantly greater in the intervention group than in the control group (estimated marginal mean, –0.57% vs. –0.23%, P=0.008); the same trend was confirmed for glycoalbumin (GA) (–3.2% vs. –0.39%, P<0.001). More patients achieved the target values of HbA1c (<7.0%) and GA (<20%) in the intervention group than in the control group at the 9-month follow-up (34.5% vs. 19.6% and 46.7% vs. 28.0%, respectively).
Conclusion
The home care program for T1DM was clinically effective in improving glycemic control and may provide an efficient care option for people with T1DM, and positive outcomes are expected to expand the program to include more patients.
7.Deep Learning Algorithm for Automated Segmentationand Volume Measurement of the Liver and Spleen UsingPortal Venous Phase Computed Tomography Images
Yura AHN ; Jee Seok YOON ; Seung Soo LEE ; Heung-Il SUK ; Jung Hee SON ; Yu Sub SUNG ; Yedaun LEE ; Bo-Kyeong KANG ; Ho Sung KIM
Korean Journal of Radiology 2020;21(8):987-997
Objective:
Measurement of the liver and spleen volumes has clinical implications. Although computed tomography (CT)volumetry is considered to be the most reliable noninvasive method for liver and spleen volume measurement, it has limitedapplication in clinical practice due to its time-consuming segmentation process. We aimed to develop and validate a deeplearning algorithm (DLA) for fully automated liver and spleen segmentation using portal venous phase CT images in variousliver conditions.
Materials and Methods:
A DLA for liver and spleen segmentation was trained using a development dataset of portal venousCT images from 813 patients. Performance of the DLA was evaluated in two separate test datasets: dataset-1 which included150 CT examinations in patients with various liver conditions (i.e., healthy liver, fatty liver, chronic liver disease, cirrhosis,and post-hepatectomy) and dataset-2 which included 50 pairs of CT examinations performed at ours and other institutions.The performance of the DLA was evaluated using the dice similarity score (DSS) for segmentation and Bland-Altman 95%limits of agreement (LOA) for measurement of the volumetric indices, which was compared with that of ground truth manualsegmentation.
Results:
In test dataset-1, the DLA achieved a mean DSS of 0.973 and 0.974 for liver and spleen segmentation, respectively,with no significant difference in DSS across different liver conditions (p = 0.60 and 0.26 for the liver and spleen, respectively).For the measurement of volumetric indices, the Bland-Altman 95% LOA was -0.17 ± 3.07% for liver volume and -0.56 ± 3.78%for spleen volume. In test dataset-2, DLA performance using CT images obtained at outside institutions and our institutionwas comparable for liver (DSS, 0.982 vs. 0.983; p = 0.28) and spleen (DSS, 0.969 vs. 0.968; p = 0.41) segmentation.
Conclusion
The DLA enabled highly accurate segmentation and volume measurement of the liver and spleen using portalvenous phase CT images of patients with various liver conditions.
8.Preoperative Cardiac Computed Tomography Characteristics Associated with Recurrent Aortic Regurgitation after Aortic Valve Re-Implantation
Yura AHN ; Hyun Jung KOO ; Sahmin LEE ; Dae Hee KIM ; Jong Min SONG ; Duk Hyun KANG ; Jae Kwan SONG ; Ho Jin KIM ; Joon Bum KIM ; Sung Ho JUNG ; Suk Jung CHOO ; Cheol Hyun CHUNG ; Jae Won LEE ; Joon Won KANG ; Dong Hyun YANG
Korean Journal of Radiology 2020;21(2):181-191
24 mm² (sensitivity, 76.5%; specificity 64.8%), and the area under the ROC curve (AUC) was 0.72. For ASR(area), the cut-off value was > 1.58 (sensitivity, 76.5%; specificity, 58.0%) and the AUC was 0.64. Multivariable Cox regression showed that ARO > 24 mm² (hazard ratio = 3.79, p = 0.020) was a potential independent parameter for recurrent 3 + AR. ROC for the linear regression model showed that the AUC for both ARO and ASR(area) was 0.73 (95% confidence interval, 0.64–0.81, p < 0.001).CONCLUSION: ARO and ASR(area) detected on preoperative cardiac CT would be potentially helpful for identifying AR patients who may benefit from the David operation.]]>
Aortic Valve Insufficiency
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Aortic Valve
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Area Under Curve
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Echocardiography
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Humans
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Linear Models
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Retrospective Studies
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ROC Curve
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Sensitivity and Specificity
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Tomography, X-Ray Computed
9.Prognostic Implication of Right Ventricle Parameters Measured on Preoperative Cardiac MRI in Patients with Functional Tricuspid Regurgitation
Yura AHN ; Hyun Jung KOO ; Joon-Won KANG ; Won Jin CHOI ; Dae-Hee KIM ; Jong-Min SONG ; Duk-Hyun KANG ; Jae-Kwan SONG ; Joon Bum KIM ; Sung-Ho JUNG ; Suk Jung CHOO ; Cheol Hyun CHUNG ; Jae Won LEE ; Dong Hyun YANG
Korean Journal of Radiology 2021;22(8):1253-1265
Objective:
To investigate the prognostic value of preoperative cardiac magnetic resonance imaging (MRI) for long-term major adverse cardiac and cerebrovascular events (MACCEs) in patients undergoing tricuspid valve (TV) surgery for functional tricuspid regurgitation (TR).
Materials and Methods:
The preoperative cardiac MR images, New York Heart Association functional class, comorbidities, and clinical events of 78 patients (median [interquartile range], 59 [51–66.3] years, 28.2% male) who underwent TV surgery for functional TR were comprehensively reviewed. Cox proportional hazards analyses were performed to assess the associations of clinical and imaging parameters with MACCEs and all-cause mortality.
Results:
For the median follow-up duration of 5.4 years (interquartile range, 1.2–6.6), MACCEs and all-cause mortality were 51.3% and 23.1%, respectively. The right ventricular (RV) end-systolic volume index (ESVI) and the systolic RV mass index (RVMI) were higher in patients with MACCEs than those without them (77 vs. 68 mL/m2 , p = 0.048; 23.5 vs. 18.0%, p = 0.011, respectively). A high RV ESVI was associated with all-cause mortality (hazard ratio [HR] per value of 10 higher ESVI = 1.10, p = 0.03). A high RVMI was also associated with all-cause mortality (HR per increase of 5 mL/m2 RVMI = 1.75, p < 0.001).After adjusting for age and sex, only RVMI remained a significant predictor of MACCEs and all-cause mortality (p < 0.05 for both). After adjusting for multiple clinical variables, RVMI remained significantly associated with all-cause mortality (p = 0.005).
Conclusion
RVMI measured on preoperative cardiac MRI was an independent predictor of long-term outcomes in patients who underwent TV surgery for functional TR.
10.Prognostic Implication of Right Ventricle Parameters Measured on Preoperative Cardiac MRI in Patients with Functional Tricuspid Regurgitation
Yura AHN ; Hyun Jung KOO ; Joon-Won KANG ; Won Jin CHOI ; Dae-Hee KIM ; Jong-Min SONG ; Duk-Hyun KANG ; Jae-Kwan SONG ; Joon Bum KIM ; Sung-Ho JUNG ; Suk Jung CHOO ; Cheol Hyun CHUNG ; Jae Won LEE ; Dong Hyun YANG
Korean Journal of Radiology 2021;22(8):1253-1265
Objective:
To investigate the prognostic value of preoperative cardiac magnetic resonance imaging (MRI) for long-term major adverse cardiac and cerebrovascular events (MACCEs) in patients undergoing tricuspid valve (TV) surgery for functional tricuspid regurgitation (TR).
Materials and Methods:
The preoperative cardiac MR images, New York Heart Association functional class, comorbidities, and clinical events of 78 patients (median [interquartile range], 59 [51–66.3] years, 28.2% male) who underwent TV surgery for functional TR were comprehensively reviewed. Cox proportional hazards analyses were performed to assess the associations of clinical and imaging parameters with MACCEs and all-cause mortality.
Results:
For the median follow-up duration of 5.4 years (interquartile range, 1.2–6.6), MACCEs and all-cause mortality were 51.3% and 23.1%, respectively. The right ventricular (RV) end-systolic volume index (ESVI) and the systolic RV mass index (RVMI) were higher in patients with MACCEs than those without them (77 vs. 68 mL/m2 , p = 0.048; 23.5 vs. 18.0%, p = 0.011, respectively). A high RV ESVI was associated with all-cause mortality (hazard ratio [HR] per value of 10 higher ESVI = 1.10, p = 0.03). A high RVMI was also associated with all-cause mortality (HR per increase of 5 mL/m2 RVMI = 1.75, p < 0.001).After adjusting for age and sex, only RVMI remained a significant predictor of MACCEs and all-cause mortality (p < 0.05 for both). After adjusting for multiple clinical variables, RVMI remained significantly associated with all-cause mortality (p = 0.005).
Conclusion
RVMI measured on preoperative cardiac MRI was an independent predictor of long-term outcomes in patients who underwent TV surgery for functional TR.