1.Clinical Analysis for Prognostic Factors of Intertrochanteric Fractures
Myung Chul YOO ; Jin Hwan AHN ; Se Jin KUM ; Cheol Jin OH
The Journal of the Korean Orthopaedic Association 1989;24(3):776-785
There are many problems in treatment of intertrochanteric fractures due to osteoporosis and unstable pattern of fractures in old ages and they are different from those in young ages, for example, type of fracture, degree of osteoporosis, and general condition, ect. Anthors studied about the prognostic factors of 42 cases among 88 patients with intertrochanteric fractures, who were treated and followed up from Jan. 1982 to Dec. 1987. 1. The patients under 50 years old were mainly males(94.4%) and its chief cause of injury was traffic accident or fall down(72.2%). The cause of injury over 50 years old was slip down on ground(62.9%). 2. The osteoporosis was increased according to increased age of patients and then the unstable type of fracture was increased. In yaung patients, the unstable intertrochanteric fracture was rare despite of high violent injury. 3. The bone union of the follow-up patients was gained at average 13.8 weeks. 4. The sliding degree of lag screw was increased with unstable fracture and the incidence of metal protrusion into joint cavity was increased in the patients of eccentric fixation of lag screw into femoral head. 5. The all cases of complication were occured in osteoporotic patients over 50 years old and their causes were inadequate fixation of unstable fracture. 6. The most important factors in prognosis of intertrochanteric fractures are initial pattern of fractures, degree of osteoporosis and adequacy of reduction state(postop.).
Accidents, Traffic
;
Follow-Up Studies
;
Head
;
Hip Fractures
;
Humans
;
Incidence
;
Joints
;
Osteoporosis
;
Prognosis
2.The factors associated with physical fitness measured by bicycle ergometer.
Cheol Hwan KIM ; Tai Woo YOO ; Sang Yeon SUH ; Jin Woong DOO ; Jin Ha KIM
Journal of the Korean Academy of Family Medicine 1997;18(6):612-621
BACKGROUND: Recently, according to many studies, variable factors have been known to be associated with physical fitness. The factors such as obesity and inactivity are associated with poor physical fitness, but regular exercise is associated with good physical fitness. In our country, these studies are not yet reported. And so, this study was designed to investigate the factors associat,ed with physical fitness. METHODS: From May 1st, until July 30th 1996, we recruited the 411 subjects who visited the Health Promotion Center at Seoul National University Hospital. Data related to sex, age, exercise, job, cigarette smoking, alcohol consumption were obtained by self-administered Questionnaire. Obesity index was calculated by the percentage of standard body weight. And VO2max were obtained by submaximal bicycle ergometer test. High level exercise group was defined as the persons who had taken exercise more than 3 times a week and 20 minutes per session, and moderate exercise group was defined as the persons who had taken exercise one or two times a week and 20 minutes per session, and sedentary group was defined as the persons who had taken exercise more than 20 minutes less than one time per week. RESULTS: The subjects were 230 males(56%), total numbers were 411. The results were as follows. Compaired to women and nonexercise group, men and exercise group had high VO2max(p<0.005). The relationship between VO2max and age showed negative, and the VO2max of obese group(obesity index>_120) was greater than that of nonobese group. Any significant relationships between VO2max and job, disease were not found. In multiple regression analysis, significant relationships between VO2max and age, sex, exercise type, and obesity index were observed(p<0.01). CONCLUSIONS: We concluded that there were significant relationships between VO2max and obesity index, exercise group.
Alcohol Drinking
;
Body Weight
;
Female
;
Health Promotion
;
Humans
;
Male
;
Obesity
;
Physical Fitness*
;
Seoul
;
Smoking
;
Surveys and Questionnaires
3.A Case of Congenital Triangular Alopecia.
Hyoung Cheol YOO ; Seong Jin KIM ; Seung Chul LEE ; Young Ho WON
Korean Journal of Dermatology 2000;38(5):710-711
No Abstract Available.
Alopecia*
4.THE STUDY OF MUTATION SPECTRUM OF HEMOPHILIA
Cheol-Ho Lee ; Jin-Sung Lee ; B.Ochbadrakh ; U.Udval ; A.Bolor ; T.Khoshayar ; l.Purevdorj ; Ki-Young Yoo ; P.Erkhemhulgan ; M.Purevdorj
Innovation 2013;7(3-S):77-80
Background:
Hemophilia is life-threatening and hereditary bleeding disorder caused by deficiencies of pi coagulation VIII. IX, XI factor, and that is inherited by X-linkcd recessive.
However, hemophilic treatment is getting increase in our country, but still insufficient or poor because of high cost, which is about 50000-70000$ per patient per year in other countries. Now, we need to detect hemophilia heterozygote (XAX*) or no symptomatic carrier among hemophiliac siblings (including mother, younger sister, sister) that is essential for prevention of hemophilia. We need to screen the mutation spectrum of FS and F9 gene among patients with hemophilia in order to detect hemophilia carriers.
Objective:
to detect a mutation 1'Ó ø! f9 gene among patients with hemophilia Methods:
The blood samples were collected from paffeflf* who had been hospitalizing in department ot hematology of the First Clinical Hospital and the National Center for Maternal and Child Health from 2010 to 2011. We have carried out the screening of most common mutation named int- 22 inversion by Long-Range PC'R method is previously described by Lui Q et al.. 1998. Direct sequence method was used to detect the SNP and small deletion in patients who had no int-22 inv and large deletion.
Results:
In total, If pillitfhis with hemophilia (ÈË-14, IIB=1) participated in this study. The 9 patients positive for an int-22 inversion mutation, while the one patient had a multiple exon deletion (exon 1-13) which was demonstrated by repeated PC'R amplification failure. I wo missense mutation and 1 frame shift mutation were detected. The one patient had nonsense mutation but he was diagnosed as a severe hemophilia-A patient.
Conclusion:
We have to urgently adopt the molecular diagnosis and carrier detection ol hemophilia in our rnuntrv
5.Use of Machine Learning in Stroke Rehabilitation: A Narrative Review
Yoo Jin CHOO ; Min Cheol CHANG
Brain & Neurorehabilitation 2022;15(3):e26-
A narrative review was conducted of machine learning applications and research in the field of stroke rehabilitation. The machine learning models commonly used in medical research include random forest, logistic regression, and deep neural networks. Convolutional neural networks (CNNs), a type of deep neural network, are typically used for image analysis.Machine learning has been used in stroke rehabilitation to predict recovery of motor function using a large amount of clinical data as input. Recent studies on predicting motor function have trained CNN models using magnetic resonance images as input data together with clinical data to increase the accuracy of motor function prediction models. Additionally, a model interpreting videofluoroscopic swallowing studies was developed and investigated. In the future, we anticipate that machine learning will be actively used to treat stroke patients, such as predicting the occurrence of depression and the recovery of language, cognitive, and sensory function, as well as prescribing appropriate rehabilitation treatments.
6.Effectiveness of orthoses for treatment in patients with spinal pain
Yoo Jin CHOO ; Min Cheol CHANG
Yeungnam University Journal of Medicine 2020;37(2):84-89
Spinal pain is a common patient complaint in clinical practice. Conservative treatment methods include oral medication, physical therapy, injections, and spinal orthoses. The clinical application of orthoses is debated because of potential complications associated with long-term use, such as muscle weakness and joint contracture. We reviewed the orthoses most frequently used to manage spinal pain. We review the use of soft cervical and Philadelphia collars, lumbosacral corsets, and thoracolumbosacral orthosis to manage spinal pain. Spinal orthoses can help reduce pain by protecting the muscles and joints of the injured spinal region, preventing or correcting malformations, and limiting trunk flexion, extension, lateral flexion, and rotation. The short-term use of spinal orthoses is known to improve pain and disability during the treatment period without significant adverse effects. Spinal orthoses are expected to alleviate pain and improve patients’ lifestyle.
7.Prevalence of Sarcopenia Among the Elderly in Korea: A Meta-Analysis
Yoo Jin CHOO ; Min Cheol CHANG
Journal of Preventive Medicine and Public Health 2021;54(2):96-102
Objectives:
Sarcopenia is a common disease in the elderly population that causes disability, poor quality of life, and a high risk of death. In the current study, we conducted a meta-analysis to report basic knowledge about the prevalence of sarcopenia in the elderly in Korea.
Methods:
We searched for articles in the MEDLINE, Cochrane Library, Embase, and Scopus databases published until December 28, 2020. Studies investigating the prevalence of sarcopenia in elderly Koreans aged ≥65 years were included. The methodological quality of the studies was evaluated using the Newcastle-Ottawa scale. Publication bias was evaluated using the Egger test and funnel plots.
Results:
In total, 3 studies and 2922 patients were included in the meta-analysis. All 3 studies used the European Working Group on Sarcopenia in Older People criteria for the diagnosis of sarcopenia. The total prevalence of sarcopenia was 13.1-14.9% in elderly men and 11.4% in elderly women.
Conclusions
This meta-analysis is the first to estimate the pooled prevalence of sarcopenia in elderly Koreans, and its findings suggest that sarcopenia is common in this population. Therefore, attention should be paid to the prevention and control of sarcopenia.
8.Prevalence of Sarcopenia Among the Elderly in Korea: A Meta-Analysis
Yoo Jin CHOO ; Min Cheol CHANG
Journal of Preventive Medicine and Public Health 2021;54(2):96-102
Objectives:
Sarcopenia is a common disease in the elderly population that causes disability, poor quality of life, and a high risk of death. In the current study, we conducted a meta-analysis to report basic knowledge about the prevalence of sarcopenia in the elderly in Korea.
Methods:
We searched for articles in the MEDLINE, Cochrane Library, Embase, and Scopus databases published until December 28, 2020. Studies investigating the prevalence of sarcopenia in elderly Koreans aged ≥65 years were included. The methodological quality of the studies was evaluated using the Newcastle-Ottawa scale. Publication bias was evaluated using the Egger test and funnel plots.
Results:
In total, 3 studies and 2922 patients were included in the meta-analysis. All 3 studies used the European Working Group on Sarcopenia in Older People criteria for the diagnosis of sarcopenia. The total prevalence of sarcopenia was 13.1-14.9% in elderly men and 11.4% in elderly women.
Conclusions
This meta-analysis is the first to estimate the pooled prevalence of sarcopenia in elderly Koreans, and its findings suggest that sarcopenia is common in this population. Therefore, attention should be paid to the prevention and control of sarcopenia.
9. THE STUDY OF MUTATION SPECTRUM OF HEMOPHILIA
Cheol-Ho LEE ; Jin-Sung LEE ; B.Ochbadrakh ; U.Udval ; A.Bolor ; T.Khoshayar ; L.Purevdorj ; Ki-Young YOO ; P.Erkhemhulgan ; M.Purevdorj
Innovation 2013;7(3-S):77-80
Background:Hemophilia is life-threatening and hereditary bleeding disorder caused by deficiencies of pi coagulation VIII. IX, XI factor, and that is inherited by X-linkcd recessive.However, hemophilic treatment is getting increase in our country, but still insufficient or poor because of high cost, which is about 50000-70000$ per patient per year in other countries. Now, we need to detect hemophilia heterozygote (XAX*) or no symptomatic carrier among hemophiliac siblings (including mother, younger sister, sister) that is essential for prevention of hemophilia. We need to screen the mutation spectrum of FS and F9 gene among patients with hemophilia in order to detect hemophilia carriers.Objective:to detect a mutation 1'Ó ø! f9 gene among patients with hemophilia Methods:The blood samples were collected from paffeflf* who had been hospitalizing in department ot hematology of the First Clinical Hospital and the National Center for Maternal and Child Health from 2010 to 2011. We have carried out the screening of most common mutation named int- 22 inversion by Long-Range PC'R method is previously described by Lui Q et al.. 1998. Direct sequence method was used to detect the SNP and small deletion in patients who had no int-22 inv and large deletion.Results:In total, If pillitfhis with hemophilia (ÈË-14, IIB=1) participated in this study. The 9 patients positive for an int-22 inversion mutation, while the one patient had a multiple exon deletion (exon 1-13) which was demonstrated by repeated PC'R amplification failure. I wo missense mutation and 1 frame shift mutation were detected. The one patient had nonsense mutation but he was diagnosed as a severe hemophilia-A patient.Conclusion:We have to urgently adopt the molecular diagnosis and carrier detection ol hemophilia in our rnuntrv
10.The Effect of the Administration of Nitroglycerin and Atropine on the Pattern of Left Ventricular Diastolic Filling as Assessed by Doppler Echocardiography in Normal Human Subjects.
Kyeong A OH ; Jong Cheol PARK ; Nam Jin YOO ; Soo Yeon WON ; Jin Won JEONG ; Yang Kyu PARK ; Ock Kyu PARK
Korean Circulation Journal 1994;24(3):412-425
BACKGROUND: The diastolic transmitral flow velocity pattern has been commonly used to assess left ventricular(LV) diastolic function. The effects of multiple factors(such as, LV preload, afterload and heart rate, etc.) make difficulties in accurate interpretation. METHODS: In order to investigate the diastolic transmitral filling patterns according to the changes of the proload or heart rate, we studied 27 normal subjects with pulsed Doppler echocardiography after the administration of nitroglycerin(0.6mg/tab.) sublingually or atropine(0.5mg/amp.) intravenously. RESULTS: 1) After nitroglycerin administration, the folowings were obtained. ; The systolic blood pressure and LV diastolic filling time(DFT) decreased by 10.1% and 15.3%, respectively(p<0.001), compared with baseline data. The ratio of peak early to late diastolic transmitral flow velocities (E/A) and time-velocity integrals(TVIE/TVIA) decreased by 10.3% and 14.8%, respectively(p<0.01). The early diastolic filling time(Time E) was unchanged. Therefore, we suggest that time E is helpful, compared with the increments of the preload or the diastolic dysfunction. 2) After atropin administration, the heart rate, peak late diastolic transmitral flow velocity(PA) and percent atrial contribution(%AC) significantly increased by 43.6%, 25.1% and 41.4%, respectively(p<0.001). The E/A, TVIE/TVIA and DFT significantly decreased by 42.9%, 38.9% and 43.0%, respectively(p<0.001) compared to the data before drug administration. 3) The heart rate correlated negatively to the E/A, TVIE/TVIA and DFT. It was correlated positively to %AC(r=+0.63; p<0.001). The normalized E/A ratio by DFT(E/A/DFT) didn't correlate. Therefore, E/A/DFT is helpful on the exclusion of the influences of heart rate by the administration of the atropine. CONCLUSION: The decrement of preload or the increment of heart rate changes the diastolic transmitral flow velocity patterns. Therefore, when the diastolic function is assessed by interpretation of the Doppler transmitral flow velocity pattern with pulsed Doppler echocardiogram, the potential influences of preload and heart rate must be taken into account.
Atropine*
;
Blood Pressure
;
Echocardiography
;
Echocardiography, Doppler*
;
Echocardiography, Doppler, Pulsed
;
Heart Rate
;
Humans*
;
Nitroglycerin*
;
Time