1.A Clinical Study of Femur Neck Fractures.
Hwan Mo KOO ; Myun Whan AHN ; Joo Choul IHIN
Yeungnam University Journal of Medicine 1990;7(1):69-80
A clinical analysis was done on 23 patients (24 hips) with fracture of the femoral neck, who had been admitted and treated at our Orthopedic department during the period of 4 years, from Jan. 1984 to May 1988. The results were as follows 1. 23 patients were comprised of 4 males and 19 females, and 11 patients were over 65 years old. 2. 18 cases of 24 cases were due to minor traumas such as slipping down, and for over 65 years old, all cases were due to simple minor traumas, 8 cases were showed a severe osteoporosis, below grade 3 of the Singh's index. 3. 14 cases of 24 cases were displaced subcapital fractures, and 6 cases displaced transcervical fractures. Only 4 cases were the undisplaced transcervical fractures. 4. In treatment of fractures internal fixations after manipulation were performed in 14 cases and primary arthroplasties in 10 cases. Secondary arthroplasties were done in complicated 4 cases of 14 cases treated with internal fixations. 5. Complications after internal fixation were developed in 7 cases out of 14 cases, avascular necrosis in 6, nonunions in 2, pin migrations in 3, and metal failure in 1 case. 6. In 14 arthroplasty immediate surgical fitness of femoral stem were related to late loosening of femoral stem (correlation coefficient γ=–0.68, p<0.01).
Arthroplasty
;
Clinical Study*
;
Female
;
Femoral Neck Fractures*
;
Femur Neck*
;
Femur*
;
Humans
;
Male
;
Necrosis
;
Orthopedics
;
Osteoporosis
2.Glycogen depletion
Hwan Mo KOO ; Sae Dong KIM ; Joo Chul IHN
The Journal of the Korean Orthopaedic Association 1989;24(2):582-588
In this study, the glycogen depletion and repletion of 4 hind limb skeletal muscles which are composed of different type of muscle fibers were investigated in the streptozotocin induced diabetic rats. At sixth day after intraperitoneal injection of streptozotocin (65mg/kg, BW), the plasma insulin level was decreased to 28.2 ±4.16u U/ml comparing with the level of 49.3 ±9.41 in control rats, And it showed approximatly 300% increment of the level of blood glucose concentration in the sedentary diabetic rats. The soleus (slow oxidative), rad gastrocnemius (fast oxydtive glycolytic), extensor digitorum longus (fast oxidative glycolytic and fast glycolytic mixed), and white gastrocnemius (fast gltycolytic) were subjected in this study. The decreased amount of glycogen in the muscles by 3 minutes treadmill running in disbetic rats was larger than that of control rats. The largest amount of depletion was observed in the soleus in diabetic rats. The repleted amount of muscle glycogen was measured at 2 hours after glucose ingestion (25% glucose sol., 2ml/10gm BW). In the control rats, the highest amount of glycogen was repleted in the soleus, but lowest in white gastrocnemius. The repleted amount of glycogen in soleus, red gastrocnemius, and extensor digitorum longus was lower in the muscles of diabetic rats than in control rats, but no difference was observed in white gastroenemius muscles. These data suggest that glycogen synthetic activities of all of muscles except the muscles which are composed of fast glycolytic fiber, were stimulated by insulin.
Animals
;
Blood Glucose
;
Eating
;
Extremities
;
Glucose
;
Glycogen
;
Injections, Intraperitoneal
;
Insulin
;
Muscle Fibers, Skeletal
;
Muscle, Skeletal
;
Muscles
;
Plasma
;
Rats
;
Running
;
Streptozocin
3.A STUDY ON MARGINAL FIDELITY OF CERAMIC METAL COPINGS TREATED BY VARIOUS METHODS.
Bum Mo KOO ; Ju Hwan LIM ; In Ho CHO
The Journal of Korean Academy of Prosthodontics 1997;35(2):265-276
The effect of thermocycling and surface finishing on the marginal fidelity of copings for a metal ceramic crown was examined. Methods for minimizing the loss of marginal fidelity were evaluated. The results were as follows ; 1. Thermocycling of ceramic metal coping resulted in increased marginal gap. 2. The greatest marginal gap occurred during the first thermocycling of the copings. 3. No additional distortion of marginal fidelity occurred when surface finishing and second thermocycling were completed after initial thermocycling. 4. The gab increases according to various treatment methods showed group 1 to be the highest values. 5. There was no significant difference between group 2 and group 3(p>0.05). 6. There was significant difference between group 1 and group 2, 3(p<0.05). 7. There was no significant difference among the measurement sites.
Ceramics*
;
Crowns
4.A STUDY ON MARGINAL FIDELITY OF CERAMIC METAL COPINGS TREATED BY VARIOUS METHODS.
Bum Mo KOO ; Ju Hwan LIM ; In Ho CHO
The Journal of Korean Academy of Prosthodontics 1997;35(2):265-276
The effect of thermocycling and surface finishing on the marginal fidelity of copings for a metal ceramic crown was examined. Methods for minimizing the loss of marginal fidelity were evaluated. The results were as follows ; 1. Thermocycling of ceramic metal coping resulted in increased marginal gap. 2. The greatest marginal gap occurred during the first thermocycling of the copings. 3. No additional distortion of marginal fidelity occurred when surface finishing and second thermocycling were completed after initial thermocycling. 4. The gab increases according to various treatment methods showed group 1 to be the highest values. 5. There was no significant difference between group 2 and group 3(p>0.05). 6. There was significant difference between group 1 and group 2, 3(p<0.05). 7. There was no significant difference among the measurement sites.
Ceramics*
;
Crowns
5.Preliminary Study of Children's Sleep Problems in an Elementary School in Daegu.
Wan Seok SEO ; Bon Hoon KOO ; Min Ji KIM ; Yeung Hwan RHO ; Hyung Mo SUNG ; Ji Hyun SHIN
Journal of the Korean Academy of Child and Adolescent Psychiatry 2008;19(3):156-161
OBJECTIVES: The purpose of this study was to investigate the prevalence of sleep problems in Korean elementary school children and the differences in sleep problems related to their school grade and gender. METHODS: One public elementary school in Dae-gu, Korea was randomly selected. And, parents who agreed to participate this study were asked to complete a modified version of Tucson Children's Assessment of Sleep Apnea screening questionnaire (TuCASA). RESULTS: The most common sleep problem was 'falling asleep in a vehicle (44.2%)' and the prevalence rate of this problem differed by school grade. The prevalence rate of falling asleep while watching TV before 8 P.M. (8.0%), daytime fatigue (21.9%) and nocturnal enuresis during the past 6 months (5.3%) were significantly differed by school grade. The prevalence rate of falling asleep while doing home work, falling asleep during a lesson, snoring and bruxism were 12.6%, 1.0%, 26.7% and 13.2% respectively. Although these rates did not show any differences between grades, snoring was more in boys and daytime fatigue was more in girls.. CONCLUSION: This study demonstrates that many elementary school children may have various sleep problems. Lower grade elementary schoolers had sleep problems which related to neuro-developmental factors, whereas higher grade elementary schoolers had sleep problems related to sleep deprivation and stress. Finally, more female schooler showed signs of fatigue or sleepiness than male schoolers.
Bruxism
;
Child
;
Fatigue
;
Female
;
Humans
;
Korea
;
Male
;
Mass Screening
;
Nocturnal Enuresis
;
Parents
;
Prevalence
;
Sex Characteristics
;
Sleep Apnea Syndromes
;
Sleep Deprivation
;
Snoring
;
Surveys and Questionnaires
6.A Case of Endoscopic Retrograde Cholangiopancreatography and Endoscopic Sphincterotomy in Infant Having Choledochal Cyst and CBD Stones.
Young Il MIN ; Sung Koo LEE ; Myung Hwan KIM ; Ho Soon CHOI ; Sung Mock CHOI ; Kyung Jo KIM ; Baek Nam KIM ; Hong Ja KIM ; Kyung Mo KIM
Korean Journal of Gastrointestinal Endoscopy 1996;16(2):261-267
ERCP may provide more definite diagnosis, preoperative guidance, and endoscopic therapy in many children with known and suspected disorders of the pancreas or biliary tract. To our knowledge, there has been rare case of ERCP in children and no reported case of ERCP performed in inf~int less than 2 years old in Korea. We report a case of KRCP performed in 26 month old girl who was admitted to evaluate jaundice. We diagnosed CBD stones and choledochal cyst, Todani type III containiaig stones by ERCP. After endoscopic sphincterotomy(EST), removal of stones, and endoscopic nasobiliary drainage(END) her bilirubin level normalized about 2 months later.
Biliary Tract
;
Bilirubin
;
Child
;
Child, Preschool
;
Cholangiopancreatography, Endoscopic Retrograde*
;
Choledochal Cyst*
;
Diagnosis
;
Female
;
Humans
;
Infant*
;
Jaundice
;
Korea
;
Pancreas
;
Sphincterotomy, Endoscopic*
7.Relation between Kawasaki Disease and Immunoglobulin E.
Chung Mo KOO ; Seong Yeol CHOI ; Dong Soo KIM ; Ki Hwan KIM
Journal of Rheumatic Diseases 2013;20(1):4-8
OBJECTIVE: Kawasaki disease is a systemic vascular disease which is caused by an immunologic response. The purpose of this study is to see how a high IgE level affects Kawasaki disease, in two groups of high IgE level and low IgE level. METHODS: A retrospective study was done from 2008 to 2010, among patients, who were admitted in Severance Children's Hospital for Kawasaki disease with IgE levels checked. Age groups with an IgE level above reference ranges and those with normal ranges were done. Also, clinical characteristics were analyzed. Statistical method was done by SPSS 18. RESULTS: A total of 198 Kawasaki patients were analyzed from 2008 to 2010. Among them 123 (62%) patients showed elevated IgE levels. Patients with high IgE had a significantly higher lymphadenopathy prevalence (p=0.006), however they had no connection with quantitative values. Patients with BCG site redness appeared to have lower IgE levels than patients without redness. Coronary complication had no relation with IgE levels. There was no correlation between laboratory results and IgE levels. CONCLUSION: 62% of Kawasaki disease patients show high IgE levels in our study. The symptoms of BCG site redness aged less than 1 year seemed to be related with IgE level. To understand the pathophysiology of Kawasaki disease, more studies should be performed on the role of IgE.
Aged
;
Humans
;
Immunoglobulin E
;
Immunoglobulins
;
Lymphatic Diseases
;
Mucocutaneous Lymph Node Syndrome
;
Mycobacterium bovis
;
Prevalence
;
Reference Values
;
Retrospective Studies
;
Vascular Diseases
8.Relation between Kawasaki Disease and Immunoglobulin E.
Chung Mo KOO ; Seong Yeol CHOI ; Dong Soo KIM ; Ki Hwan KIM
Journal of Rheumatic Diseases 2013;20(1):4-8
OBJECTIVE: Kawasaki disease is a systemic vascular disease which is caused by an immunologic response. The purpose of this study is to see how a high IgE level affects Kawasaki disease, in two groups of high IgE level and low IgE level. METHODS: A retrospective study was done from 2008 to 2010, among patients, who were admitted in Severance Children's Hospital for Kawasaki disease with IgE levels checked. Age groups with an IgE level above reference ranges and those with normal ranges were done. Also, clinical characteristics were analyzed. Statistical method was done by SPSS 18. RESULTS: A total of 198 Kawasaki patients were analyzed from 2008 to 2010. Among them 123 (62%) patients showed elevated IgE levels. Patients with high IgE had a significantly higher lymphadenopathy prevalence (p=0.006), however they had no connection with quantitative values. Patients with BCG site redness appeared to have lower IgE levels than patients without redness. Coronary complication had no relation with IgE levels. There was no correlation between laboratory results and IgE levels. CONCLUSION: 62% of Kawasaki disease patients show high IgE levels in our study. The symptoms of BCG site redness aged less than 1 year seemed to be related with IgE level. To understand the pathophysiology of Kawasaki disease, more studies should be performed on the role of IgE.
Aged
;
Humans
;
Immunoglobulin E
;
Immunoglobulins
;
Lymphatic Diseases
;
Mucocutaneous Lymph Node Syndrome
;
Mycobacterium bovis
;
Prevalence
;
Reference Values
;
Retrospective Studies
;
Vascular Diseases
9.A Case of Lung Involvement Associated with Juvenile Idiopathic Arthritis.
Chung Mo KOO ; Seong Yeol CHOI ; Jong Gyun AHN ; Ki Hwan KIM ; Dong Soo KIM
Journal of Rheumatic Diseases 2013;20(5):332-335
Juvenile idiopathic arthritis (JIA) can develop extra-articular manifestations, including growth retardation, osteopenia and chronic uveitis. However, pleuropulmonary involvement is rare. Approximately 40% of patients with JIA have abnormal pulmonary function tests without pulmonary symptoms, with the commonest abnormality in carbon monoxide diffusing capacity, but clinically evident pulmonary parenchymal disease in JIA is extremely uncommon. We describe a 15-year-old male with JIA who presented with dyspnea due to interstitial lung disease.
Adolescent
;
Arthritis
;
Arthritis, Juvenile Rheumatoid*
;
Bone Diseases, Metabolic
;
Carbon Monoxide
;
Dyspnea
;
Humans
;
Lung Diseases
;
Lung Diseases, Interstitial
;
Lung*
;
Male
;
Respiratory Function Tests
;
Uveitis
10.A Case of Epidermal Cyst Occurred in the Bony External Auditory Canal Misdiagnosed as External Auditory Canal Carcinoma.
Sung Hwan LIM ; Beom Mo KOO ; Po Na PARK ; Hyun Sang CHO
Korean Journal of Otolaryngology - Head and Neck Surgery 2018;61(12):714-717
Epidermal cysts are generally benign tumors that usually originate from the skin caused by inflammation of hair cortex and proliferation of epidermal cells within the dermis; however, for these cysts to occur in the bony external auditory canal (EAC) is rare. They are often present as a solitary, painless lesion and usually asymptomatic and the diagnosis depends on the results of the histological examination. In treatment, the cyst wall must be completely removed surgically. We recently encountered a 82-year-old male with a mass in the right EAC. An otoscopic examination showed a polypoid mass on the bony EAC, which was finally diagnosed as epidermal cyst after an initial misdiagnosis as EAC carcinoma. We report the rare, unique case with literature review.
Aged, 80 and over
;
Dermis
;
Diagnosis
;
Diagnostic Errors
;
Ear Canal*
;
Epidermal Cyst*
;
Hair
;
Humans
;
Inflammation
;
Male
;
Skin