1.Induction of the c-fos in Rat Brain after Acute Carbon Monoxide Exposure.
Soo Hoon CHO ; Heon KIM ; Ho Jang KWON ; Mi Na HA
Korean Journal of Occupational and Environmental Medicine 1997;9(3):459-468
No abstract available.
Animals
;
Brain*
;
Carbon Monoxide*
;
Carbon*
;
Rats*
2.A Case of Aplasia Cutis Congenita Group 5.
Jung En KWON ; Sang Hee KIM ; Gwang Hoon LEE ; Kil Hyun KIM ; Hak Soo LEE
Journal of the Korean Society of Neonatology 1997;4(2):272-275
Aplasia cutis congenita is a rare disorder characterized by localized or generalized absence of skin at birth. The various hypothesis and classification are proposed. Type V in Frieden's classification, which is associated with fetus papyraceus or placental infarcts, occurs as a large cutaneous defect on the trunk and extremities. We experienced the patient had skin defect affecting the lower abdomen symmetrically, with no family history of the any disorders or chromosomal anomalies and associated anomalies. A twin fetus was died in utero. We report a case of aplasia cutis congenita associated with fetus papyraceus with the review of the associated literatures.
Abdomen
;
Classification
;
Ectodermal Dysplasia*
;
Extremities
;
Fetus
;
Humans
;
Parturition
;
Skin
;
Twins
3.MRI Study about the Early Changes of Lumbar Disk Degeneration using Magnetization Transfer Contrast (MTC).
Young Soo KIM ; Tae Sub CHUNG ; Tae Hoon KIM ; Eun Kee JEONG ; Hyuk Woo KWON
Journal of the Korean Radiological Society 1995;32(6):865-870
PURPOSE: To obtain magnetization transfer ratio(MTR) of the annulus fibrosus and nucleus pulposus and to assess the feasibility of utilizing the changes of these MTRs as an early indicator of disk degeneration. MATERIALS AND METHODS: MR images of lumbar spine with magnetization transfer(MT) technique in 42 patients were obtained. spin echo techniques (600/14) with same TR/TE with 1KHz off-resonance saturation were employed in 1.0T MR system. MTRs were calculated in two regions, anterior annulus fibrosus and nucleus pulposus, and the results were compared between the normal and degenerative disks, from grade I to IV, on T2-weighted images. RESULTS: MTRs of the nucleus pulposus were 17.6% in the normal disks, and 26.7%, 28.4%, 29.1%, 29.7% in degenerative disks, from grade I to IV, respectively, with a significant difference(P<0.05). On the other hand, MTRs in the annulus fibrosus were 30.2% in the normal disks and 31.5%, 33.2%, 32.1% and 35.6% in degenerative disks, from grade I to IV, respectively, without significant difference. CONCLUSION: Since MTRs are significantly higher in degenerative nucleus pulposus than those of the normal disks, increased MTRs in the nucleus pulposus can be used as an early sign of the degeneration of the nucleus pulposus.
Hand
;
Humans
;
Intervertebral Disc Degeneration*
;
Magnetic Resonance Imaging*
;
Spine
4.Rotational acetabular osteotomy in acetabular dysplasia.
Chang Soo KANG ; Kwang Soon SONG ; Chearl Hyoung KANG ; Sung Tae LEE ; Kyung Hoon KWON
The Journal of the Korean Orthopaedic Association 1991;26(6):1744-1755
No abstract available.
Acetabulum*
;
Osteotomy*
5.External Fixation and Secondary Intramedullary Nailing on Open Long Bone Fractures: Report of seven cases
Sang Hoon LEE ; Jin Woo KWON ; Soo Young KIM ; Choong Gil LEE
The Journal of the Korean Orthopaedic Association 1994;29(1):50-56
External fixation is regarded as the treatment of choice for type 2 and 3 open tibial fractures. However, external fixation alone, especially of an unstable fracture, can be complicated by high incidence of malunion, delayed union, loss of reduction, refracture, and pin-tract infection. Some surgeons tried to treat such problems by secondary intramedullary nailing, but they came to different results. The purpose of the present study is to eveluate our experience with secondary intramedullary nailing after external fixation of 6 cases of type 3B open tibia fractures and 1 case of type 3B femur fracture. These cases were followed for more than 13 months and the following results were obtained. 1. The external fixation had been maintained for an average of 62 days. 2. The mean interval between removal of the external fixator and intramedullary nailing was 23 days. 3. Antibiotics was injected for 2 weeks after removal of external fixator. 4. Reamed intramedullary nailing with static interlocking were done in all 13 cases. 5. Deep infections developed in 2 cases, one case which had been pin-tract infection was around intramedullary nail and the other in fracture site. 6. All cases were healed ultimately and average union time after nailing was 9 months.
Anti-Bacterial Agents
;
External Fixators
;
Femur
;
Fracture Fixation, Intramedullary
;
Fractures, Bone
;
Incidence
;
Surgeons
;
Tibia
;
Tibial Fractures
6.Blood Presure Changes and Blood Loss in General Anesthesia for Total Hip Replacement .
Hoon Soo KANG ; Soo Han CHOI ; Byung Kwon KIM
Korean Journal of Anesthesiology 1983;16(4):393-397
31 cases of general anesthesia for total hip replacement which were performed at K.N.U. hospital from 1980 to 1982 were measured blood pressure, blood loss, hemoglobin, and hematocrit before, during, and after operation. Blood pressure were monitored right before and at 1, 3, 5 and 8 min intervals after the insertion of the acrylic cement into the acetabulum and the femur. There was a tendency to decrease in blood pressure at 3 min after the insertion of acrylic cement in to the femur. The blood loss during and duration of 36 hrs after halothane anesthesia revealed tendency to decrease compared with the enflurane and ether. Hemoglobin and hematocrit values taken on before, during, and the 1st day after operation did not show and changes.
Acetabulum
;
Anesthesia
;
Anesthesia, General*
;
Arthroplasty, Replacement, Hip*
;
Blood Pressure
;
Enflurane
;
Ether
;
Femur
;
Halothane
;
Hematocrit
7.Changes in Vertebral Rotation Following Segmental Pedicle Screw Instrumentation and Rod Derotation in Idiopathic Thoracic Scoliosis : Part I - CT Evaluation.
Won Jung KIM ; Se Il SUK ; Chil Soo KWON ; Jin Hyok KIM ; Dong Soo KIM ; Sang Min LEE ; Hoon WHANG
The Journal of the Korean Orthopaedic Association 1998;33(4):1164-1169
The employment of segmental pedicle screw instrumentation has greatly enhanced the correction of scoliotic deformity. However there is still much controversy on the ability of the system to correct the rotational deformity. This prospective study with 12 idiopathic throacic scoliosis patients subjected to segmental pedicle screw instrumentation was performed to determine the effect of the system on the rotational deformity of idiopathic throacic scoliosis. In addition to the standing films to measure the magnitude of scoliotic curvatures, preand postoperative CT were utilized for the measurement and comparison of angle of rotation relative to the sagittal plane(RAsag.), relative rotation with reference to the upper and lower end vertebrae(RAend), relative rotation with reference to the sacrum(RAsac.), frontal translation(TF) and sagittal translation(TS) for the apical vertebrae. Despite the high correction rate obtained in the frontal plane(average 71.1%) and normalization of sagittal contour, the rotational corrections were statistically insignificant in all parameters and showed no significant correlation to the correction of the curvatures nor horizontal plane displacement as represented by the frontal and sagittal displacement. In conclusions, the segmental pedicle screw instrumentation with rod derotation does not produce significant derotation by itself.
Congenital Abnormalities
;
Employment
;
Humans
;
Prospective Studies
;
Scoliosis*
;
Spine
8.Mazabraud's Syndrome: A case report.
Jeong Geun HONG ; Jin Soo LIM ; Ho KWON ; Sang Hoon CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2000;27(2):176-178
Mazabraud's syndrome is rare benign disease characterized by the association of intramuscular myxoma and fibrous dysplasia of bone. We present a case of multiple intramuscular myxomas of the right forearm with polyostotic fibrous dysplasia. X-rays suggested fibrous dysplasia of adjacent bones and CT scans showed two intramuscular cystic masses on the right forearm. 99mTc bone scintigraphy also showed a markedly increased uptake in the skull, both scapulas, both clavicles and both humeri. The masses were successfully removed. Fibrous dysplasia of the radius and myxoma were confirmed by pathologic study.
Clavicle
;
Fibrous Dysplasia of Bone
;
Fibrous Dysplasia, Polyostotic
;
Forearm
;
Myxoma
;
Radionuclide Imaging
;
Radius
;
Scapula
;
Skull
;
Tomography, X-Ray Computed
9.Association of Serum Copper and Zinc Levels with Liver Cirrhosis and Hepatocellular Carcinoma.
Myung Soo HYUN ; Suk Kwon SUH ; Nung Ki YOON ; Jong Young LEE ; Seoung Hoon LEE ; Mu Sik LEE
Korean Journal of Preventive Medicine 1992;25(2):127-140
This study was done to identify the association between serum copper and zinc levels and the cirrhosis and hepatocellular carcinoma(HCC), and to evaluate its diagnostic value on liver diseases. Sixty-three healthy persons, 60 patients with cirrhosis and 33 patients with hepatocellular carcinoma were rendomly selected and investigated for their general characteristics from October 1990 to August 1991. For analysis of the biochemical markers in liver function test and the serum copper and zinc levels, their fasting venous blood were sampled at 9:00 to 11:00 in the morning and centrifuged to separate the serum within one hour. All the samples were immediately analysed for biochemical markers and stored at -20 C in polypropylene tubes further copper and zinc analysis. Mean of serum copper levels was 91.97+/-4.76 microgram/dl in control, 106.21+/-2.73 microgram/dl in cirrhosis and 127.05+/-0.77 microgram/dl in HCC. The value of HCC was statistically significantly higher than that of the control and cirrhosis(p<0.05). Serum zinc levels were 110.82+/-7.24 microgram/dl in control, 68.10+/-5.43 microgram/dl in cirrhosis and 63.78+/-2.20 microgram/dl in HCC. The values of cirrhosis and HCC were statistically significantly different among three groups(p<0.05). Test total protein, albumin, ALP and total bilirubin of biochemical markers of liver function were statistically significantly different among three groups(p<0.05). Differences between cirrhosis and HCC for ALT and AST, and between the control and HCC for direct bilirubin were not statistically significant. Biochemical markers statistically significantly correlated with serum copper and zinc levels and Cu/Zn ratio(p<0.05), were variable in three groups. In multiple logistic regression, odds ratio of serum copper level and Cu/Zn ratio had no statistically significance on the cirrhosis and the HCC, but that of serum zinc was statistically significant as 0.951 and 0.952 (p<0.05). Serum copper and zinc levels and Cu/Zn ratio were not statistically significantly different between the cirrhosis and HCC. Albumin, ALP, zinc, total bilirubin and age among all variables were selected as main variables for three-group discriminant analysis. Percentage of "grouped" cases correctly classified by these five variables was 98.4 for control, 73.4 for cirrhosis, 75.7 for HCC and 84.0 for all subjects. This study suggests that zinc may has an independently inhibitory effect on the liver disease and serum zinc level is considered to play a role as diagnostic marker on the hepatic disorders and be more useful than serum copper level and Cu/Zn ratio in diagnosis of the liver diseases.
Bilirubin
;
Biomarkers
;
Carcinoma, Hepatocellular*
;
Copper*
;
Diagnosis
;
Fasting
;
Fibrosis
;
Humans
;
Liver Cirrhosis*
;
Liver Diseases
;
Liver Function Tests
;
Liver*
;
Logistic Models
;
Odds Ratio
;
Polypropylenes
;
Zinc*
10.Psychosocial Characteristics and Factors Associated with Referral to Psychiatric Care in the Suicide Attempters Visiting Emergency Center.
Jung Woo KWON ; Young Hoon KO ; Chang Su HAN ; Moon Soo LEE ; Ho Kyung YOON ; Hongjae LEE
Korean Journal of Psychosomatic Medicine 2013;21(2):106-113
OBJECTIVES: The purpose of this study was to examine the characteristics and the psychosocial factors associated to the referral to psychiatric care in the suicide attempters visiting emergency center. METHODS: We conducted a systematic chart review of 377 suicidal attempters visiting emergency center of the Korea University Ansan Hospital between January 2008 and December 2011. We gathered a data contain 20 items including psychosocial characteristics and factors related to suicide and factors related to psychiatric treatment. Multivariate logistic regression models were fitted to data to estimate the unique effects of sex, drunken status, companion, suicidal methods, place of suicide and current use of psychiatric medication on the referral to psychiatric care. RESULTS: The female gender(OR=1.63, 95% CI=0.99-2.69), suicidal attempts at home(OR=3.40, 95% I=1.21-9.56) and drunken state at visit(OR=2.34, 95% CI=1.10-5.01) are the factors that predict the risk of the non-referral of the patients to psychiatric intervention. Place of suicidal attempt was the most important factor do play a role in determining whether referral to psychiatric care will take place or not. Current use of psychiatric medication showed a trend toward significance(p=0.08, OR=1.67, 95% CI=0.95-2.95). CONCLUSIONS: These results suggest that when deciding whether to adapt or to refuse the referral to psychiatric care, the factors such as suicidal intent, lethality of suicide methods, familiar factors and alcohol may contribute onto the referral to psychiatric care. Additional research is required to investigate an association of these factors with referral to psychiatric care.
Emergencies*
;
Epidemiology
;
Female
;
Friends
;
Gyeonggi-do
;
Humans
;
Korea
;
Logistic Models
;
Methods
;
Psychology
;
Referral and Consultation*
;
Suicide*