1.A clinical analysis on hand injuries.
Eun Jung CHOI ; Jin Han CHA ; Myong Chul PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(1):172-182
No abstract available.
Hand Injuries*
;
Hand*
2.A case report of tuberculous tenosynovitis.
Eun Jung CHOI ; Jin Han CHA ; Myong Chul PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(1):143-148
No abstract available.
Tenosynovitis*
3.Reconstruction of the soft tissue defects in the lower extremities.
Eun Jung CHOI ; Jin Han CHA ; Myong Chul PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):1080-1089
No abstract available.
Lower Extremity*
4.Multivariate Analysis of Adverse Pregnancy Outcome by Multiprediction Factors.
In Soo HAN ; Jung Yeol HAN ; Myong In KO ; Yong Kwan CHOI ; Hong Bok LEE ; Jea Hyuk YANG ; Hyun Mi RYU ; Moon Young KIM ; Eun Sung KIM ; Ho Won HAN
Korean Journal of Obstetrics and Gynecology 1999;42(8):1726-1732
PURPOSE: To evaluate a role as over 35 years, maternal serum markers, and a false positive screen for Down syndrome were the predictor of adverse pregnancy outcome. Materials and METHODS: From Mar.1994, through Feb.1996, 5284 women were screened triple test to detect Down syndrome in the second trimester and were delivered Samsung Cheil hospital. The values of each maternal serum markers were measured with radioimmunoassay. And then, the screen positive of Down syndrome was calculated using alpha-software Version 4.0. The adverse outcome of the fetus and the mother included low birth weight(LBW) ( <2500gm), prematurity( <37 gestational weeks), placenta previa, preterm premature rupture of membranes(PPROM), pregnancy induced hypertension(PIH),abruptio placenta, and intrauterine fetal death(IUFD). The predictor markers included over 35years, elevated alpha-fetoprotein (AFP), elevated human chorionic gonadotropin(hCG), lowered unconjugated estriol (uE3), and a false positive screen for Down syndrome. RESULTS: Mean age and mean gestational weeks in the study were 30+/-4.8 years and 17.1 weeks respectively. The adverse pregnancy outcomes were 357 LBW(6.8%), 253 prematurity(4.8%), 108 placenta previa(2.0%), 68 PPROM(1.3%), 66 PIH(1.3%), 24 abruptio placenta(0.5%), and 20 IUFD(0.4%). In univariate analysis, over 35 years was significantly associated with abruptio placenta, prematurity, and placenta previa, elevated MS-AFP( >2.0 MoM) associated with IUFD, LBW, PIH, prematurity, and PPROM , elevated MS-hCG (>3.0 MoM) associated with IUFD, LBW, PIH, prematurity, and placenta previa, lowered uE3 (<0.75) associated with IUFD, abruptio placenta, LBW, and prematurity.(P <0.05). In multivariate logistic regression analysis, IUFD was significantly associated with only elevated MS-AFP, LBW associated with elevated MS-AFP, elevated MS-hCG, and lowered uE3, PIH associated with only elevated MS-AFP, PPROM only elevated MS-AFP, prematurity only elevated MS-AFP, and placenta previa over 35 years, elevated MS-hCG.(P <0.05). However, abruptio placenta was not significantly associated with predictor markers.(P >0.05) CONCLUSIONS: Some predictors such as over 35 year, elevated hCG, lowered uE3, a false positive screen for Down syndrome were significantly associated with adverse pregnancy outcome. Also in multivariate analysis, we identified especially elevated AFP to be the most reliable predictor for adverse pregnancy outcome.
alpha-Fetoproteins
;
Biomarkers
;
Chorion
;
Down Syndrome
;
Estriol
;
Female
;
Fetus
;
Humans
;
Logistic Models
;
Mothers
;
Multivariate Analysis*
;
Parturition
;
Placenta
;
Placenta Previa
;
Pregnancy
;
Pregnancy Outcome*
;
Pregnancy Trimester, Second
;
Pregnancy*
;
Radioimmunoassay
;
Rupture
5.Analysis of influencing factors on self-employed physician's income.
Woong Sub PARK ; Han Joong KIM ; Myong Sei SOHN ; Eun Cheol PARK
Korean Journal of Preventive Medicine 1998;31(4):770-785
This study describes the relation of physician's income and price of medical service and social welfare through microeconomic view, reviews the literature of influencing factor on physician's income, and it describes general distribution of physician's income, and analyzes influencing factor of physician's income. A total of 844 persons responded to the mail survey, through stratified sampling by 23 branches of medical society in Korean RBRVS study. The design of the study is cross sectional study, and the unit of analysis is a physician. To examine the change of average income per month, multiple regression was used to test the change according to physician's characteristics, demographic characteristics, scale of clinic(or hospital), average intensity of ordinary work, and specialty. The major findings of this study are as follows; 1. As for self-employed physicians, the difference of average income per month among specialties was 4,850,000won, but the difference was 6,020,000won under the control of control variables, and average income per month was significantly higher for physicians who had sick-beds than physicians who had no sick-beds. 2. The number of average out-patients per month and number of nurses and nursing aides significantly positively associated, but the number of physician significantly negatively associated with average income per month. In conclusion, the number of out-patient and number of nurses and nursing aides is the major influencing factor, and the difference of average income per month among specialties existed in self-employed physicians. So this study suggests basic hypothesis that the price of medical service and supply of physician by specialties are not pertinent. Being a cross-sectional study, this study can not suggest causal explanations. In the future, further study is needed for causal explanations.
Cross-Sectional Studies
;
Humans
;
Nursing
;
Outpatients
;
Postal Service
;
Social Welfare
;
Societies, Medical
6.Comparison of work measures for some physician services in Obstetrics & Gynecology.
Yeong Joo HUR ; Myong Sei SOHN ; Eun Cgeol PARK ; Hyung Gon KANG ; Han Joong KIM
Korean Journal of Preventive Medicine 1995;28(3):623-639
We have never seen any method to cope basically with complicated situation and problems around medical reimbursement rates here in Korea since 1977 witnessed by the beginning of medical insurance. By the way researchers concerned are beginning to propose some kinds of innovative and detailed ideas to government these days. They are Diagnosis-related group(DRG)and Resource-based relative value scale(RBRVS). In the light of this situation it is so encouraging that our government can come up with that and move. In case of RBRVS research we have already been reaching even to the level of reviewing and revising methodology for its further development after naive pilot study on internal medicine and general surgery last year. However there might be something different conditions between USA and Korea to apply the same Dr. Hsiao's method and it must be vital to check so called 'total work approach' compared with 'intra-service work approach' before expanding to the whole medical fields. According to the 'Intra-service approach', the physician's work is supposed to be divided into three sub-works by the name of intraservice work, pre, and post service work. These sub-works, again should be merged together to be the pre-postwork subset through some statistical methods of the estimation process applied by Dr. Hsiao's methodology in RBRVS development later on. But in this paper that estimation process was not taken because we could have real values for all of those surveyed items related to just one specialty, OB & GY. Instead, we used some statistical comparison procedures relevant to demographic characteristics, reliability & validity and correlation analysis with American RVU(Relative value unit) between the total work and merged total work from intraservice work approach. The unit of analysis was individual physicians of OB & GY and 300 physicians were selected for each approach through statistical sampling method based on national population of OB & GY physicians in korea. And also with the thankful help of Advisory committee under Korean Association of OB & GY, questionnaires were made and mailed to the subjects, two times. As a result there were not any statistically significant differences in demographic characteristics between the two approaches except for the variable 'Response time for the questionnaire', but in other sections of comparisons, response rate, representative values, reliability & validity test, correlation analysis with American RVU, all showed 'Total approach' was not only more rational and statistically meaningful than ,'Intra-service approach' but also had considerable merits. But we are not absolutely sure about this paper's robustness. Because of some limitations, we'd rather like to suggest further researches should be followed. In that sense the first thing would be a research for the influence of doctor's haracteristics, especially 'frequency' on the rating of work and the way to define total work more clearly.
Advisory Committees
;
Gynecology*
;
Insurance
;
Internal Medicine
;
Korea
;
Obstetrics*
;
Pilot Projects
;
Postal Service
;
Surveys and Questionnaires
7.Visualization of a Traumatic Pseudoaneurysm at Internal Carotid Artery Bifurcation due to Blunt Head Injury: A Case Report.
Ju Hee HAN ; Eun Jeong KOH ; Ha Young CHOI ; Jung Soo PARK ; Jong Myong LEE
Korean Journal of Neurotrauma 2014;10(2):126-129
Traumatic intracranial pseudoaneurysms occurring after blunt head injuries are rare. We report an unusual case of subarachnoid hemorrhage (SAH) caused by rupturing of the traumatic pseudoaneurysm of the internal carotid artery (ICA) bifurcation that resulted from a non-penetrating injury. In a patient with severe headache and SAH in the right sylvian cistern, which developed within 7 days after a blunt-force head injury, a trans-femoral cerebral angiogram (TFCA) showed aneurysmal sac which was insufficient to confirm the pseudoaneurysm. We obtained a multi-slab image of three dimensional time of flight (TOF) of magnetic resonance angiography (MRA). The source image of the gadolinium-enhanced MRA revealed an intimal flap within the intracranial ICA bifurcation, providing a clue for the diagnosis of a dissecting pseudoaneurysm at the ICA bifurcation due to blunt head trauma. We performed direct aneurysmal neck clipping, without neurological deficit. A follow-up TFCA did not show either aneurysm sac or luminal narrowing. We suggest that in the patient with a history of blunt head injury with SAH following shortly, multi-slab image of 3D TOF MRA can give visualization of the presence of a pseudoaneurysm.
Aneurysm
;
Aneurysm, False*
;
Carotid Artery Injuries
;
Carotid Artery, Internal*
;
Craniocerebral Trauma
;
Diagnosis
;
Follow-Up Studies
;
Head Injuries, Closed*
;
Headache
;
Humans
;
Magnetic Resonance Angiography
;
Neck
;
Phenobarbital
;
Subarachnoid Hemorrhage
8.The Spot Sign Predicts Hematoma Expansion, Outcome, and Mortality in Patients with Primary Intracerebral Hemorrhage.
Ju Hee HAN ; Jong Myong LEE ; Eun Jeong KOH ; Ha Young CHOI
Journal of Korean Neurosurgical Society 2014;56(4):303-309
OBJECTIVE: The purpose of this study was to retrospectively review cases of intracerebral hemorrhage (ICH) medically treated at our institution to determine if the CT angiography (CTA) 'spot sign' predicts in-hospital mortality and clinical outcome at 3 months in patients with spontaneous ICH. METHODS: We conducted a retrospective review of all consecutive patients who were admitted to the department of neurosurgery. Clinical data of patients with ICH were collected by 2 neurosurgeons blinded to the radiological data and at the 90-day follow-up. RESULTS: Multivariate logistic regression analysis identified predictors of poor outcome; we found that hematoma location, spot sign, and intraventricular hemorrhage were independent predictors of poor outcome. In-hospital mortality was 57.4% (35 of 61) in the CTA spot-sign positive group versus 7.9% (10 of 126) in the CTA spot-sign negative group. In multivariate logistic analysis, we found that presence of spot sign and presence of volume expansion were independent predictors for the in-hospital mortality of ICH. CONCLUSION: The spot sign is a strong independent predictor of hematoma expansion, mortality, and poor clinical outcome in primary ICH. In this study, we emphasized the importance of hematoma expansion as a therapeutic target in both clinical practice and research.
Angiography
;
Cerebral Hemorrhage*
;
Follow-Up Studies
;
Hematoma*
;
Hemorrhage
;
Hospital Mortality
;
Humans
;
Logistic Models
;
Mortality*
;
Neurosurgery
;
Retrospective Studies
9.Epidemiological Study of Malignant Gliomas in Korea Using Nationwide Dataset from 2007 to 2017
Sang Uk KIM ; Stephen AHN ; Jung Eun LEE ; Kyung-Do HAN ; Sang Hyun PARK ; Seung Ho YANG
Journal of Korean Medical Science 2021;36(9):e68-
Background:
The purpose of the study was to investigate the incidence, prevalence, and survival of malignant gliomas (MGs) using population-based Korean National Health Insurance Database (NHID) data.
Methods:
Using the Korean NHID, we identified patients with MG as C71 codes in KCD 5–7 according to ICD-10 from January 1, 2007 to December 31, 2017. Epidemiological characteristics of MG, including annual incidence, prevalence, mortality rates, and survival rates, were collected and analyzed according to socioeconomic state (SES) and treatments received.
Results:
We identified 45,066 newly diagnosed-MG patients from 2007 to 2017, for an age-adjusted incidence of 7.47 per 100,000 people. The mean age at diagnosis was 54 years. The male to female ratio was 1.11. Mortality and survival probability were analyzed among total subjects and in subgroups. The mortality rates were lower in female than that of male patients (hazard ratio, 0.69; 95% confidence interval, 0.67–0.71), and in younger age population and in higher income group. Patients operated had a slightly higher survival rate. The 1-, 3-, 5-, and 10-year survival rates were estimated at 63.4%, 46.2%, 39.4%, and 34.8%, respectively. This is the first population-based study to determine the incidence and prevalence of MG according to epidemiological characteristics in Korea using NHID.
Conclusion
Our study found that female sex and high SES were factors that significantly lowered the mortality rate in MG, and younger groups and operated patients showed significantly higher survival rates.
10.Epidemiological Study of Malignant Gliomas in Korea Using Nationwide Dataset from 2007 to 2017
Sang Uk KIM ; Stephen AHN ; Jung Eun LEE ; Kyung-Do HAN ; Sang Hyun PARK ; Seung Ho YANG
Journal of Korean Medical Science 2021;36(9):e68-
Background:
The purpose of the study was to investigate the incidence, prevalence, and survival of malignant gliomas (MGs) using population-based Korean National Health Insurance Database (NHID) data.
Methods:
Using the Korean NHID, we identified patients with MG as C71 codes in KCD 5–7 according to ICD-10 from January 1, 2007 to December 31, 2017. Epidemiological characteristics of MG, including annual incidence, prevalence, mortality rates, and survival rates, were collected and analyzed according to socioeconomic state (SES) and treatments received.
Results:
We identified 45,066 newly diagnosed-MG patients from 2007 to 2017, for an age-adjusted incidence of 7.47 per 100,000 people. The mean age at diagnosis was 54 years. The male to female ratio was 1.11. Mortality and survival probability were analyzed among total subjects and in subgroups. The mortality rates were lower in female than that of male patients (hazard ratio, 0.69; 95% confidence interval, 0.67–0.71), and in younger age population and in higher income group. Patients operated had a slightly higher survival rate. The 1-, 3-, 5-, and 10-year survival rates were estimated at 63.4%, 46.2%, 39.4%, and 34.8%, respectively. This is the first population-based study to determine the incidence and prevalence of MG according to epidemiological characteristics in Korea using NHID.
Conclusion
Our study found that female sex and high SES were factors that significantly lowered the mortality rate in MG, and younger groups and operated patients showed significantly higher survival rates.