1.Engaging the international community during the 2015 Middle East respiratory syndrome outbreak in the Republic of Korea
Minwon Lee ; Hoohee Nam ; Sun-Gyu Lee ; Ok Park ; Youngmee Jee ; Kidong Park
Western Pacific Surveillance and Response 2016;7(1):21-23
The 2015 Middle East respiratory syndrome (MERS) outbreak in the Republic of Korea, which started with an imported case and spread throughout the country with a total of 186 cases, revealed the vulnerabilities of the health-care system of the country. The situation was compounded by the unique health-care settings in the Republic of Korea, including crowded emergency departments and large numbers of hospital visitors seeking care at multiple hospitals. To assist with the outbreak response, the Ministry of Health and Welfare of the Republic of Korea hosted several international joint missions that provided valuable information and recommendations for MERS control and prevention of future outbreaks. This report briefly summarizes the missions’ outcomes and discusses their positive impacts.
2.The significance of C-reactive protein levels in maternal serum with outcome of tocolysis.
Chung Ok PARK ; Tae Gyu PARK ; Chul Sung BAE ; Yoon Kee PARK ; Sung Ho LEE ; Wun Yong CHUNG
Korean Journal of Obstetrics and Gynecology 1991;34(6):781-789
No abstract available.
C-Reactive Protein*
;
Tocolysis*
3.Relation of Carotid Artery Intima-Media Thickness and Atherosclerotic Plaque with the Extent of Coronary Artery Stenosis.
Byung Hyun PARK ; Gyung Ho YOON ; Jae Hong PARK ; Chang Soo CHOI ; Hyang KOOK ; Nam Jin YOO ; Suk Gyu OH ; Jin Won JUNG ; Yang Gyu PARK ; Ok Gyu PARK
Journal of the Korean Society of Echocardiography 2000;8(1):45-53
BACKGROUND: Noninvasive measurements that relate to the extent and severity of coronary atherosclerosis have long been sought for clinical screening of patients with chest pain syndromes and for use in clinical trials. Intima-media thickeness (IMT) of the carotid artery has been suggested to be associated with coronary artery atherosclerosis. In this study, we tried to assess the relation of carotid artery atherosclerosis by B-mode ultrasonography with presence and severity of coronary artery disease. METHOD: We studied 57 patients (36 men, 21 women) with ischemic heart disease, mean age 65+/-8 yrs (48 to 83 yrs), who underwent both coronary angiography and carotid ultrasonography with 10 MHz transducer. The patients who had received revascularization procedure were excluded. We classified the patients into two groups, the control group without significant coronary stenosis (18 patients) and the coronary artery disease (CAD) group (39 patients) with significant luminal stenosis (> or =50%). The CAD group was divided into single vessel disease group (SVD, 19 patients) and multivessel disease group (MVD, 20 patients). IMT was measured in far wall of common carotid artery (CCA) at 10 mm proximal to carotid bulb and abnormal IMT was defined if the measurement was greater than mean IMT+2SD of control group. Serum total cholesterol (TC), low density lipoprotein (LDL), high density lipoprotein (HDL), triglyceride (TG), Lipoproteinp (a)(Lp(a)) were measured and history of hypertension, diabetes mellitus, and smoking were investigated. RESULTS: A significant difference in IMT of the CCA was found between control and CAD group (0.76+/-0.09 mm vs. 0.97+/-0.20 mm; p<0.0001). Also a significant difference in the number of atherosclerotic plaque was found between the two groups (control; 0.67+/-1.14 vs. CAD; 1.87+/-1.75; p<0.005). In the CAD group, both mean IMT and numbers of athero-sclerotic plaque tended to increase in MVD group compared with SVD group (1.03 mm vs. 0.91 mm; p=NS, 2.65 vs. 1.05; p<0.05). The sensitivity of IMT for prediction of significant CAD was 66.7%, the specificity 83.3%, the positive predictive value 89.7%, and the negative predictive value 53.6%. The sensitivity of plaque presence on the carotid artery for prediction of CAD was 71.8%, the specificity 61.3%, the positive predictive value 80.3% and the negative predictive value 50.5%. Among risk factor, diabetes mellitus and Lp (a) were correlated well with IMT of CCA, Hypertension was correlated with atherosclerotic plaque. History of smoking was correlated with coronary artery disease. CONCLUSION: Increases in IMT and plaque of the carotid artery, as measured noninvasively by ultrasonography, can be used as a predictor of significant coronary artery stenosis.
Atherosclerosis
;
Carotid Arteries*
;
Carotid Artery, Common
;
Chest Pain
;
Cholesterol
;
Constriction, Pathologic
;
Coronary Angiography
;
Coronary Artery Disease
;
Coronary Stenosis*
;
Coronary Vessels*
;
Diabetes Mellitus
;
Humans
;
Hypertension
;
Lipoproteins
;
Male
;
Mass Screening
;
Myocardial Ischemia
;
Phenobarbital
;
Plaque, Atherosclerotic*
;
Risk Factors
;
Sensitivity and Specificity
;
Smoke
;
Smoking
;
Transducers
;
Triglycerides
;
Ultrasonography
4.A Case of Femoral Artery Pseudoaneurysm , which was Developed after Interventional Cardiology Procedure , Treated with Color Doppler Ultrasound-Guided Direct Compression.
Byung Hyun PARK ; Chang Soo CHOI ; Geun Young JANG ; Nam Jin YOO ; Suk Gyu OH ; Jin Won JUNG ; Yang Gyu PARK ; Ok Gyu PARK
Journal of the Korean Society of Echocardiography 2000;8(1):103-106
Vascular complications such as hematoma, pseudoaneurysm and arteriovenous fistula that occur after intracoronary or intracardiac procedures are responsible for considerable morbidity and some mortality. Iatrogenic aneurysms are usually postcatheterization pseudoaneurysms of the femoral artery. Nowadays, it is not uncommon as a consequence of more complex interventional procedures, larger catheters and prolonged anticoagulation treatment. Surgical repair has been mainstay of treatment for pseudoaneurysm. However, recently has it been shown that color Doppler ultrasound-guided direct, noninvasive compression of the pseudoaneurysm stops the blood flow in the communication and lead to pseudoaneurysm clotting and obliteration. We report a case of pseudoaneurysm in femoral artery, which was developed at the right inguinal puncture site in 74 year old male patient with myocardial infarction who had received continuous intravenous infusion of heparin and had undergone primary percutaneous coronary angioplasty and temporary pacemaker insertion treated successfully with color Doppler ultrasound guided direct compression.
Aged
;
Aneurysm
;
Aneurysm, False*
;
Angioplasty
;
Arteriovenous Fistula
;
Cardiology*
;
Catheters
;
Femoral Artery*
;
Hematoma
;
Heparin
;
Humans
;
Infusions, Intravenous
;
Male
;
Mortality
;
Myocardial Infarction
;
Punctures
;
Ultrasonography
5.Effect of External Beam Irradiation on Intimal Hyperplasia in Autografted Femoral Artery of Dog.
Song Ok LEE ; Chang Yong SOHN ; Kwan Gyu PARK ; Ok Bae KIM ; Won Hyun CHO
Journal of the Korean Surgical Society 1998;55(3):324-331
BACKGROUNDS: It is well known that intimal hyperplasia is one of the most important cause of vascular graft failure in angioplasty, autogenous venous graft and prosthetic bypass graft. Clinical trials of drugs including antiplatelet agents, anticoagulant, corticosteroid, cyclosporine and prostaglandin were not satisfactory in suppressing intimal hyperplasia. Seeding of endothelial cell also have been done for this purpose with some success. There are several reports that endovascular low dose irradiation and external beam irradiation might reduce the amount of proliferative neointima after arterial injury. METHODS: In order to evaluate the effect of external beam irradiation on intimal hyperplasia in grafted vessel, femoral artery autografts using external jugular vein were performed in dogs, and studied the morphological finding under microscope and compared intimal hyperplasia between control and radiated groups. Group I (control) was not irradiated after graft. But experimental groups were irradiated with 6 Mev electron: Group II, 800 cGy on day 1; Group III, 400 cGy on day 1 and day 4 each; and Group IV, 800 cGy on day 4. Radiation efficacy on intimal hyperplasia was histologically assessed by measuring neointimal thickness at the proximal and distal site of grafted vessel at 6 weeks after graft. RESULTS: Mean neointimal thickness in all irradiated groups were significantly lesser than control group (p<0.05) and not related with irradiating time: Group I (Control), 0.41+/-0.11 mm; Group II, 0.16+/-0.10 mm; Group III, 0.19 0.10 mm; Group IV 0.15+/-0.08 mm. There was no difference in intimal hyperplasia between proximal and distal anastomotic site of grafted vessels in both control and irradiated groups: Control, 0.42+/-0.11 mm vs 0.40+/-0.10 mm; Radiated groups, 0.17+/-0.10 mm vs 0.16+/-0.09 mm; (p>0.05). CONCLUSION: These data suggest that low dose external beam irradiation might suppress intimal hyperplasia in grafted vessel, but further study will be necessary to determine optimal dose and timing of radiation delivery, and its efficacy in long segment bypass graft.
Angioplasty
;
Animals
;
Autografts*
;
Cyclosporine
;
Dogs*
;
Endothelial Cells
;
Femoral Artery*
;
Hyperplasia*
;
Jugular Veins
;
Neointima
;
Platelet Aggregation Inhibitors
;
Transplants
6.Postoperative radiotherapy for endometrial cancer.
Eun Cheol CHOI ; Jin Hee KIM ; Ok Bae KIM ; Sang Jun BYUN ; Seung Gyu PARK ; Sang Hoon KWON
Radiation Oncology Journal 2012;30(3):108-116
PURPOSE: To investigate the prognostic factors and effectiveness of postoperative radiotherapy alone for endometrial carcinoma. MATERIALS AND METHODS: Sixty four patients with stage I-III endometrial cancer (EC) treated with postoperative radiotherapy alone between January 1989 and December 2008 at the Keimyung University Dongsan Medical Center were chosen for the present study. Typically, total hysterectomy, salpingo-oophorectomy and lymphadenectomy were performed on the patient's pelvis. Total dose from 50.4 Gy to 63 Gy was irradiated at pelvis or extended field. Thirteen patients were treated with Co-60 or Ir-192 intracavitary radiotherapy. Follow-up periods were from 7 to 270 months, with a median of 56 months. RESULTS: Five year overall survival (OS) rate was 58.7%, respectively. Five year disease-free survival (DFS) rate was 59.2%, respectively. In univariate analysis for OS and DFS, stage, menopausal age, type of operation, serosal invasion, and lymph node involvement were found to be statistically significant. Histologic type was marginally significant. In multivariate analysis for OS and DFS, stage, types of operation, histologic type were also found to be statistically significant. Treatment failure occurred in 14 patients. The main pattern of failure was found to be distant metastasis. Time to distant metastasis was from 3 to 86 months (median, 12 months). There were no grade 3 or 4 complications. CONCLUSION: Stage, types of operation, and histologic type could be the predictive prognostic factors in patients. We contemplated postoperative radiation as effective and safe treatment method for EC. Additional treatment would be needed to reduce distant metastasis.
Disease-Free Survival
;
Endometrial Neoplasms
;
Female
;
Follow-Up Studies
;
Humans
;
Hysterectomy
;
Lymph Node Excision
;
Lymph Nodes
;
Menopause
;
Multivariate Analysis
;
Neoplasm Metastasis
;
Pelvis
;
Postoperative Care
;
Prognosis
;
Radiotherapy, Adjuvant
;
Treatment Failure
7.A Case of Systemic Amyloidosis.
Gyung Ho YOON ; Chang Soo CHOI ; Suk Gyu OH ; Jin Won JUNG ; Yang Gyu PARK ; Ok Gyu PARK ; Gyung Hee KIM ; Woo Geun SONG
Journal of the Korean Society of Echocardiography 2000;8(1):87-92
Systemic amyloidosis is an uncommon disease characterized by deposits of fibrillar aggregates of monoclonal immunoglobuloin light chains in vital organs. This amyloid deposit cause cardiac or renal dysfunction and ultimately, death. Cardiac amyloidosis may be asymptomatic or important causes of progressive heart failure and refractory arrhythmia. Cardiac involvement from AL amyloidosis is rapidly fatal. The amyloidoses are classified according to the biochemical nature of the fibril-forming protein. Cardiac amyloidosis is common in primary (AL) and heterofamilial amyloidosis and very rare in the secondary (AA) form. As we experienced a case of systemic amyloidosis affected heart, liver and kidney, which was confirmed by histology. We present a 57-year-old female case with literature review.
Amyloidosis*
;
Arrhythmias, Cardiac
;
Female
;
Heart
;
Heart Failure
;
Humans
;
Kidney
;
Liver
;
Middle Aged
;
Plaque, Amyloid
8.Risk Factors for Intracranial Injury Caused by Falls at Home in Korea Using Data from the Emergency Department-based Injury In-depth Surveillance (2011–2018)
Won-il NA ; Ju Ok PARK ; Gyu Chong CHO ; Eui Jung LEE ; Soon-Joo WANG ; Hang A PARK
Journal of Korean Medical Science 2021;36(7):e53-
Background:
Most unintentional injuries that occur at home are preventable. However, it may be difficult to sufficiently reduce the number of falls occurring at home by only identifying risk factors focused on specific age groups. Therefore, this study aimed to identify the risk factors (especially age and places where injuries occurred at home) for intracranial injury (ICI) caused by unintentional falls at home.
Methods:
Using the Emergency Department (ED)-Based Injury In-depth Surveillance, we analyzed the data of patients who visited the ED due to unintentional falls at home. Risk factors were identified using multivariable logistic regression according to age groups and interactions between place of injury occurrence and age groups, and sex and age groups were assessed.
Results:
In total, 232,124 patients were included in the analysis; older adults had a higher adjusted odds ratio (aOR) 14.05 (95% confidence interval [CI], 12.74–15.49) of ICI than infants. The corridor was associated with ICI in the male pediatric group (aOR, 2.71; 95% CI, 1.08–6.84) and the balcony with the female pediatric group (aOR, 2.04; 95% CI, 1.03–4.04). In the adult group, aOR of kitchen was 1.38 (95% CI, 1.02–1.88) in females and 0.56 (95% CI, 0.48–0.66) in males.
Conclusion
In this study, we identified the risk factors of ICI caused by falls at home using ED-based injury surveillance data. The risk of ICI was different among places of occurrence in the home depending on the age groups and sex.
9.Risk Factors for Intracranial Injury Caused by Falls at Home in Korea Using Data from the Emergency Department-based Injury In-depth Surveillance (2011–2018)
Won-il NA ; Ju Ok PARK ; Gyu Chong CHO ; Eui Jung LEE ; Soon-Joo WANG ; Hang A PARK
Journal of Korean Medical Science 2021;36(7):e53-
Background:
Most unintentional injuries that occur at home are preventable. However, it may be difficult to sufficiently reduce the number of falls occurring at home by only identifying risk factors focused on specific age groups. Therefore, this study aimed to identify the risk factors (especially age and places where injuries occurred at home) for intracranial injury (ICI) caused by unintentional falls at home.
Methods:
Using the Emergency Department (ED)-Based Injury In-depth Surveillance, we analyzed the data of patients who visited the ED due to unintentional falls at home. Risk factors were identified using multivariable logistic regression according to age groups and interactions between place of injury occurrence and age groups, and sex and age groups were assessed.
Results:
In total, 232,124 patients were included in the analysis; older adults had a higher adjusted odds ratio (aOR) 14.05 (95% confidence interval [CI], 12.74–15.49) of ICI than infants. The corridor was associated with ICI in the male pediatric group (aOR, 2.71; 95% CI, 1.08–6.84) and the balcony with the female pediatric group (aOR, 2.04; 95% CI, 1.03–4.04). In the adult group, aOR of kitchen was 1.38 (95% CI, 1.02–1.88) in females and 0.56 (95% CI, 0.48–0.66) in males.
Conclusion
In this study, we identified the risk factors of ICI caused by falls at home using ED-based injury surveillance data. The risk of ICI was different among places of occurrence in the home depending on the age groups and sex.
10.The Cutoff Value of Waist Circumference for Predicting Metabolic Risks in Pre- and Post-Menopausal Korean Women: Analysis of 2010 Korean National Health and Nutrition Examination Survey Data.
Ok Gyu LEE ; Yang Im HUR ; Jae Heon KANG ; Hyun Ah PARK ; Kyoung Woo KIM ; Young Gyu CHO ; Won Young CHOI ; Hyesook PARK ; Hye Ah LEE
Korean Journal of Family Medicine 2013;34(5):307-318
BACKGROUND: With metabolic syndrome (MS) being a major risk factor for cardiovascular disease, and central obesity being a major predisposing factor for MS, intensive research is currently being performed on cutoff values according to race and sex. Menopause is an especially significant factor in designating cutoff values for female central obesity, as menopause brings sudden bodily changes that induce central obesity and increased prevalence of MS. Therefore this study aimed to investigate the cutoff values for the obesity index and its validity in predicting the criteria for MS in Korean women according to menstrual status. METHODS: The study focused on 3,103 women 20 years of age or older participating in the 2007 Korea National Health and Nutrition Examination Survey. Definitions of non-adipose components of MS were defined by the International Diabetes Federation, and menstrual status was judged on the basis of survey results. The sensitivity, specificity, and positive and negative predictive values of the central obesity index (body mass index [BMI], waist circumference [WC], waist-to-height ratio [WHtR]) according to menstrual status for two or more non-adipose components of MS were calculated based on the Youden index. RESULTS: Area under the curve (AUC) values predicting the presence of two or more metabolic risk factors were higher in pre-menopausal women, with AUC values for BMI, WC, and WHtR being, in pre- and post-menopausal women, 23.1 kg/m2 vs. 23.9 kg/m2, 76.1 cm vs. 82.5 cm, and 0.49 vs. 0.53, respectively. The WC cut off (76 cm) for pre-menopausal women was found to be more sensitive and more effective at screening for MS risks than the cutoff value given by the Korea Society for the Study of Obesity. CONCLUSION: The central obesity index showed better predictability for MS risk in pre-menopausal women. Because the central obesity index cutoff values are lower in pre-menopausal women, the possibility of metabolic risk can be considered for pre-menopausal women with WC lower than 85 cm. Assessment and control of other risks are needed accordingly for preventing the development of MS.
Area Under Curve
;
Body Mass Index
;
Cardiovascular Diseases
;
Continental Population Groups
;
Female
;
Humans
;
Korea
;
Mass Screening
;
Menopause
;
Nutrition Surveys
;
Obesity
;
Obesity, Abdominal
;
Prevalence
;
Risk Factors
;
Sensitivity and Specificity
;
Waist Circumference