1.The Role of Interventional Radiology in Treatment of Patients with Acute Trauma:A Pictorial Essay
Kyung Sik KANG ; Mu Sook LEE ; Doo Ri KIM ; Young Hwan KIM
Journal of the Korean Radiological Society 2021;82(2):347-358
Acute trauma is a common cause of mortality in individuals aged < 40 years. As organ preservation has become important in treating trauma patients, the treatment is shifting from surgical management to non-operative management. A multidisciplinary team approach, including interventional radiology (IR), is essential for the optimal management of trauma patients, as IR plays an important role in injury evaluation and management. IR also contributes significantly to achieving the best clinical outcomes in critically ill trauma patients. This pictorial essay aims to present and summarize various interventional treatments in trauma patients requiring critical care
2.The Role of Interventional Radiology in Treatment of Patients with Acute Trauma:A Pictorial Essay
Kyung Sik KANG ; Mu Sook LEE ; Doo Ri KIM ; Young Hwan KIM
Journal of the Korean Radiological Society 2021;82(2):347-358
Acute trauma is a common cause of mortality in individuals aged < 40 years. As organ preservation has become important in treating trauma patients, the treatment is shifting from surgical management to non-operative management. A multidisciplinary team approach, including interventional radiology (IR), is essential for the optimal management of trauma patients, as IR plays an important role in injury evaluation and management. IR also contributes significantly to achieving the best clinical outcomes in critically ill trauma patients. This pictorial essay aims to present and summarize various interventional treatments in trauma patients requiring critical care
3.Immune Checkpoint Inhibitors for Non-Small-Cell Lung Cancer with Brain Metastasis : The Role of Gamma Knife Radiosurgery
Min Ho LEE ; Kyung-Rae CHO ; Jung Won CHOI ; Doo-Sik KONG ; Ho Jun SEOL ; Do-Hyun NAM ; Hyun Ae JUNG ; Jong-Mu SUN ; Se-Hoon LEE ; Jin Seok AHN ; Myung-Ju AHN ; Keunchil PARK ; Jung-Il LEE
Journal of Korean Neurosurgical Society 2021;64(2):271-281
: Immune checkpoint inhibitors (ICIs) are approved for treating non-small-cell lung cancer (NSCLC); however, the safety and efficacy of combined ICI and Gamma Knife radiosurgery (GKS) treatment remain undefined. In this study, we retrospectively analyzed patients treated with ICIs with or without GKS at our institute to manage patients with brain metastases from NSCLC. Methods : We retrospectively reviewed medical records of patients with brain metastases from NSCLC treated with ICIs between January 2015 and December 2017. Of 134 patients, 77 were assessable for brain responses and categorized into three groups as follows : group A, ICI alone (n=26); group B, ICI with concurrent GKS within 14 days (n=24); and group C, ICI with non-concurrent GKS (n=27). Results : The median follow-up duration after brain metastasis diagnosis was 19.1 months (range, 1–77). At the last follow-up, 53 patients (68.8%) died, 20 were alive, and four were lost to follow-up. The estimated median overall survival (OS) of all patients from the date of brain metastasis diagnosis was 20.0 months (95% confidence interval, 12.5–27.7) (10.0, 22.5, and 42.1 months in groups A, B, and C, respectively). The OS was shorter in group A than in group C (p=0.001). The intracranial disease progression-free survival (p=0.569), local progression-free survival (p=0.457), and complication rates did not significantly differ among the groups. Twelve patients showed leptomeningeal seeding (LMS) during follow-up. The 1-year LMS-free rate in treated with ICI alone group (69.1%) was significantly lower than that in treated with GKS before ICI treatment or within 14 days group (93.2%) (p=0.004). Conclusion : GKS with ICI showed no favorable OS outcome in treating brain metastasis from NSCLC. However, GKS with ICI did not increase the risk of complications. Furthermore, compared with ICI alone, GKS with ICI may be associated with a reduced incidence of LMS. Further understanding of the mechanism, which remains unknown, may help improve the quality of life of patients with brain metastasis.
4.Usefulness of Apparent Diffusion Coefficient Value of Diffusion-Weighted Imaging and Peak Standardized Uptake Values of Positron Emission Tomography-CT for Predicting Prognostic Factors of Breast Cancer
Tae Sun KANG ; Keum Won KIM ; Young Joong KIM ; Jae Young SEO ; Yong jun CHO ; Cheol Mog HWANG ; Mu Sik LEE
Journal of the Korean Radiological Society 2019;80(3):524-536
PURPOSE:
This study was performed to retrospectively correlate the apparent diffusion coefficient (ADC) value and peak standardized uptake value (pSUV) with prognostic factors and MRI findings for breast lesions.
MATERIALS AND METHODS:
Ninety four breast cancers in 82 women were included in this study. Our patients underwent presurgical MRI including diffusion-weighted imaging (DWI), 18-fluorodeoxyglucose PET-CT, and immunohistological staining of the surgical or biopsy specimens. We evaluated relationships between mean ADCs and pSUVs with a variety of prognostic factors (age, tumor size, histologic grade of tumor, hormone receptors, human epidermal growth factor receptor 2 expression status, and nodal metastasis) and MRI findings (shape, margin and internal enhancement of mass, T2-signal intensity, and kinetics), using statistical methods.
RESULTS:
Both mean ADCs and pSUVs were significantly associated with histologic grade (p = 0.000 and p = 0.001) and nodal metastasis (p = 0.013 and p = 0.001). pSUVs were significantly associated with tumor size and estrogen receptor status, as well as irregular shape and rim enhancement pattern on MRI findings. On multivariate analysis, mean ADCs were significantly associated with invasiveness, estrogen receptor status and HER-2 expression status. PSUVs were only significantly associated with tumor size.
CONCLUSION
Mean pSUVs on PET-CT and ADCs on DWI helped predict prognosis of breast cancer.
5.Rosuvastatin Reduces Blood Viscosity in Patients with Acute Coronary Syndrome.
Lae Young JUNG ; Sang Rok LEE ; Jin Mu JUNG ; Yi Shik KIM ; Sun Hwa LEE ; Kyoung Suk RHEE ; Jei Keon CHAE ; Dong Hwan LEE ; Dal Sik KIM ; Won Ho KIM ; Jae Ki KO
Korean Circulation Journal 2016;46(2):147-153
BACKGROUND AND OBJECTIVES: Wall shear stress contributes to atherosclerosis progression and plaque rupture. There are limited studies for statin as a major contributing factor on whole blood viscosity (WBV) in patients with acute coronary syndrome (ACS). This study investigates the effect of statin on WBV in ACS patients. SUBJECTS AND METHODS: We prospectively enrolled 189 consecutive patients (mean age, 61.3±10.9 years; 132 males; ST-segment elevation myocardial infarction, n=52; non-ST-segment elevation myocardial infarction, n=84; unstable angina n=53). Patients were divided into two groups (group I: previous use of statins for at least 3 months, n=51; group II: statin-naïve patients, n=138). Blood viscosities at shear rates of 1 s-1 (diastolic blood viscosity; DBV) and 300 s-1 (systolic blood viscosity; SBV) were measured at baseline and one month after statin treatment. Rosuvastatin was administered to patients after enrollment (mean daily dose, 16.2±4.9 mg). RESULTS: Baseline WBV was significantly higher in group II ([SBV: group I vs group II, 40.8±5.9 mP vs. 44.2±7.4 mP, p=0.003], [DBV: 262.2±67.8 mP vs. 296.9±76.0 mP, p=0.002]). WBV in group II was significantly lower one month after statin treatment ([SBV: 42.0±4.7 mP, p=0.012, DBV: 281.4±52.6 mP, p=0.044]). However, low-density lipoprotein cholesterol level was not associated with WBV in both baseline (SBV: R2=0.074, p=0.326; DBV: R2=0.073, p=0.337) and after one month follow up (SBV: R2=0.104, p=0.265; DBV: R2=0.112, p=0.232). CONCLUSION: Previous statin medication is an important determinant in lowering WBV in patients with ACS. However, one month of rosuvastatin decreased WBV in statin-naïve ACS patients.
Acute Coronary Syndrome*
;
Angina, Unstable
;
Atherosclerosis
;
Blood Viscosity*
;
Cholesterol
;
Follow-Up Studies
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors
;
Lipoproteins
;
Male
;
Myocardial Infarction
;
Prospective Studies
;
Rheology
;
Rupture
;
Rosuvastatin Calcium
6.Associations among the Degree of Nonalcoholic Fatty Liver Disease, Metabolic Syndrome, Degree of Obesity in Children, and Parental Obesity.
Min Su OH ; Sorina KIM ; Joon Hyuck JANG ; Jong Yoon PARK ; Hyun Sik KANG ; Mu Sook LEE ; Ki Soo KANG
Pediatric Gastroenterology, Hepatology & Nutrition 2016;19(3):199-206
PURPOSE: To analyze the associations among the degrees of nonalcoholic fatty liver disease (NAFLD) by ultrasonography and metabolic syndrome, degrees of obesity in children, and degrees of parental obesity. METHODS: A total of 198 children with obesity who visited a pediatric obesity clinic were prospectively enrolled in this study. The severity of NAFLD based on ultrasonography was classified into no, mild, moderate, or severe NAFLD group. The degree of obesity based on the percentage over standard weight for height per sex was classified into mild, moderate, or severe. RESULTS: Of 132 patients evaluated for the degree of NAFLD and metabolic syndrome, the p-value of correlation between the two factors was 0.009. Therefore, metabolic syndrome might significantly affect the degree of NAFLD. Of 158 patients evaluated for the degree of NAFLD and the degree of obesity, the p-value of correlation between the two factors was 0.122. Of 154 patients evaluated for the degree of obesity and father's obesity, the p-value was 0.076. Of 159 patients evaluated for the degree of obesity and mother's obesity, the p-value was 0.000, indicating that mother's obesity could significantly affect the degree of obesity in children. Of 142 patients evaluated for the degree of obesity and metabolic syndrome, the p-value was 0.288. CONCLUSION: Metabolic syndrome might significantly affect the degree of nonalcoholic fatty liver in children. In addition, mother's obesity might be a significant factor that affects the degree of obesity in children.
Child*
;
Humans
;
Non-alcoholic Fatty Liver Disease*
;
Obesity*
;
Parents*
;
Pediatric Obesity
;
Prospective Studies
;
Ultrasonography
7.Sonographic Growth Charts for Kidney Length in Normal Korean Children: a Prospective Observational Study.
Min Su OH ; Geol HWANG ; Sanghoon HAN ; Hyun Sik KANG ; Seung Hyo KIM ; Young Don KIM ; Ki Soo KANG ; Kyung Sue SHIN ; Mu Sook LEE ; Guk Myung CHOI ; Kyoung Hee HAN
Journal of Korean Medical Science 2016;31(7):1089-1093
Kidney length is the most useful parameter for clinical measurement of kidney size, and is useful to distinguish acute kidney injury from chronic kidney disease. In this prospective observational study of 437 normal children aged between 0 and < 13 years, kidney length was measured using sonography. There were good correlations between kidney length and somatic values, including age, weight, height, and body surface area. The rapid growth of height during the first 2 years of life was intimately associated with a similar increase in kidney length, suggesting that height should be considered an important factor correlating with kidney length. Based on our findings, the following regression equation for the reference values of bilateral kidney length for Korean children was obtained: kidney length of the right kidney (cm) = 0.051 × height (cm) + 2.102; kidney length of the left kidney (cm) = 0.051 × height (cm) + 2.280. This equation may aid in the diagnosis of various kidney disorders.
Age Factors
;
Asian Continental Ancestry Group
;
Body Height
;
Body Surface Area
;
Body Weight
;
Child
;
Child, Preschool
;
Female
;
Growth Charts
;
Humans
;
Infant
;
Infant, Newborn
;
Kidney/*diagnostic imaging
;
Kidney Diseases/diagnosis
;
Male
;
Prospective Studies
;
Reference Values
;
Republic of Korea
;
Ultrasonography
8.A New Histone Deacetylase Inhibitor, MHY219, Inhibits the Migration of Human Prostate Cancer Cells via HDAC1.
Umasankar DE ; Soma KUNDU ; Nabanita PATRA ; Mee Young AHN ; Ji Hae AHN ; Ji Yeon SON ; Jung Hyun YOON ; Hyung Ryoung MOON ; Byung Mu LEE ; Hyung Sik KIM
Biomolecules & Therapeutics 2015;23(5):434-441
Histone deacetylase (HDAC) inhibitors are considered novel agents for cancer chemotherapy. We previously investigated MHY219, a new HDAC inhibitor, and its potent anticancer activity in human prostate cancer cells. In the present study, we evaluated MHY219 molecular mechanisms involved in the regulation of prostate cancer cell migration. Similar to suberanilohydroxamic acid (SAHA), MHY219 inhibited HDAC1 enzyme activity in a dose-dependent manner. MHY219 cytotoxicity was higher in LNCaP (IC50=0.67 muM) than in DU145 cells (IC50=1.10 muM) and PC3 cells (IC50=5.60 muM) after 48 h of treatment. MHY219 significantly inhibited the HDAC1 protein levels in LNCaP and DU145 cells at high concentrations. However, inhibitory effects of MHY219 on HDAC proteins levels varied based on the cell type. MHY219 significantly inhibited LNCaP and DU145 cells migration by down-regulation of matrix metalloprotease-1 (MMP-1) and MMP-2 and induction of tissue inhibitor of metalloproteinases-1 (TIMP-1). These results suggest that MHY219 may potentially be used as an anticancer agent to block cancer cell migration through the repression of MMP-1 and MMP-2, which is related to the reduction of HDAC1.
Cell Movement
;
Down-Regulation
;
Drug Therapy
;
Histone Deacetylase Inhibitors*
;
Histone Deacetylases*
;
Histones*
;
Humans*
;
Matrix Metalloproteinases
;
Prostate*
;
Prostatic Neoplasms*
;
Repression, Psychology
9.Systemic Classification for a New Diagnostic Approach to Acute Abdominal Pain in Children.
Ji Hoi KIM ; Hyun Sik KANG ; Kyung Hee HAN ; Seung Hyo KIM ; Kyung Sue SHIN ; Mu Suk LEE ; In Ho JEONG ; Young Sil KIM ; Ki Soo KANG
Pediatric Gastroenterology, Hepatology & Nutrition 2014;17(4):223-231
PURPOSE: With previous methods based on only age and location, there are many difficulties in identifying the etiology of acute abdominal pain in children. We sought to develop a new systematic classification of acute abdominal pain and to give some helps to physicians encountering difficulties in diagnoses. METHODS: From March 2005 to May 2010, clinical data were collected retrospectively from 442 children hospitalized due to acute abdominal pain with no apparent underlying disease. According to the final diagnoses, diseases that caused acute abdominal pain were classified into nine groups. RESULTS: The nine groups were group I "catastrophic surgical abdomen" (7 patients, 1.6%), group II "acute appendicitis and mesenteric lymphadenitis" (56 patients, 12.7%), group III "intestinal obstruction" (57 patients, 12.9%), group IV "viral and bacterial acute gastroenteritis" (90 patients, 20.4%), group V "peptic ulcer and gastroduodenitis" (66 patients, 14.9%), group VI "hepatobiliary and pancreatic disease" (14 patients, 3.2%), group VII "febrile viral illness and extraintestinal infection" (69 patients, 15.6%), group VIII "functional gastrointestinal disorder (acute manifestation)" (20 patients, 4.5%), and group IX "unclassified acute abdominal pain" (63 patients, 14.3%). Four patients were enrolled in two disease groups each. CONCLUSION: Patients were distributed unevenly across the nine groups of acute abdominal pain. In particular, the "unclassified abdominal pain" only group was not uncommon. Considering a systemic classification for acute abdominal pain may be helpful in the diagnostic approach in children.
Abdominal Pain*
;
Appendicitis
;
Child*
;
Classification*
;
Diagnosis
;
Humans
;
Retrospective Studies
;
Ulcer
10.Complete Septal Extension Graft using Porous High-Density Polyethylene Sheet or Septal Cartilage in Unilateral Cleft Lip Nasal Deformities: Photogrammetric Analysis.
Ki Hwan HAN ; Jin Wook JEONG ; Mu Sik PARK ; Jun Hyung KIM ; Dae Gu SON
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2010;37(4):400-408
PURPOSE: Complete septal extension grafts have been widely used in rhinoplasty for effective projection of the short retruded columella in Asian patients. Autologous septal cartilages and porous high-density polyethylene sheets are frequently used as septal extension grafts. This study was conducted to compare the postoperative results of porous polyethylene sheets and septal cartilages used for correction of unilateral cleft lip nasal deformities by using photogrammetric analysis. METHODS: This study investigated a total of 49 patients with cleft lip nasal deformities who underwent corrective surgery, and were followed up for at least 6 months. Septal cartilages were used in 39 patients, and porous polyethylene sheets were used in 10 patients. In all patients, through the open rhinoplasty, complete septal extension grafts were sutured to the caudal margin of the septal cartilage, and the alar cartilage was sutured with suspension. The cleft side alar cartilage was overcorrected by approximately 3 - 5 mm. Postoperative outcomes were evaluated by using photogrammetric analysis. Five indices and 4 angles were measured on their photographs taken before and after the surgery. In patients with unilateral cleft lip nasal deformities, symmetry was also evaluated by means of columellar length index. RESULTS: The postoperative values obtained in photogrammetric analysis showed improvements in comparison with the preoperative ones. The polyethylene group produced more improved outcomes than the septal cartilage group but also resulted in more complications at the same time. CONCLUSION: The results of this study indicates that complete septal extension grafts are efficient for the correction of unilateral cleft lip nasal deformities. However, since postoperative complications occur more frequently in the polyethylene group than in the septal cartilage group, caution is advised in using porous high-density polyethylene sheets in patients with cleft lip nasal deformities.
Asian Continental Ancestry Group
;
Cartilage
;
Cleft Lip
;
Congenital Abnormalities
;
Humans
;
Nasal Cartilages
;
Polyethylene
;
Postoperative Complications
;
Rhinoplasty
;
Succinates
;
Transplants

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