1.An experimental comparison of nerve and muscle change with time sequence of neurorrhaphy.
Han Koo LEE ; Sang Hoon LEE ; Kwan Hee LEE ; goo Hyun BAEK ; Seung Baik KANG
The Journal of the Korean Orthopaedic Association 1993;28(6):2281-2289
No abstract available.
2.Vascular risk factors for stroke among urban community dwelling adults in Ansan city, Korea
Hyun Goo Kang ; Seung-Han Suk ; Jin Sung Cheong ; Bum Joon Kim
Neurology Asia 2016;21(4):317-324
Background & Objective: The number of ischemic stroke is increasing steadily. The recent stroke
prevention strategies have targeted risk factors for preventing ischemic stroke. Community-based data
that quantify the prevalence of these risk factors are needed to develop effective stroke prevention
strategies. This study was performed aiming to establish customized prevention strategies by investigating
vascular risk factors of ischemic stroke among the healthy adults in an urban population in Korea.
Methods: The Prevention of Stroke and Dementia (PRESENT) survey collected data associated with
stroke risk factors between 2007 and 2009 in Ansan city, Korea. Of 46,537 people, 2,843 were selected
by random sampling, and final population included 358 men and 422 women over 50 years old. We
checked modifiable risk factors, such as hypertension, diabetes mellitus, smoking, hyperlipidemia,
atrial fibrillation, cardiovascular disease, obesity, and physical inactivity. Results: The mean age of
study subjects was 60.1±8.2 years; 55.5% had hypertension, 18.6% had diabetes mellitus, 17.7% were
current smoker, 44.9% had hyperlipidemia, 1.7% had atrial fibrillation, and 4.5% had cardiovascular
disease. Men had more risk factors for stroke, and higher rates of diabetes mellitus and current
smoking. However, women had higher cholesterol and obesity rates and lower physical activity. The
proportion of individuals with >1 risk factor for stroke increased with age. Hypertension, diabetes
mellitus, and cardiovascular diseases also increased with age, but low-density lipoprotein levels and
current smoking decreased.
Conclusions: This study provides valuable information to develop customized strategic policies for
primary and secondary stroke prevention.
Stroke
3.Hypoxic brain injury with unilateral hemispheric cortical involvement following multiple wasp stings
Jeong Bin Bong ; Hyun Goo Kang ; Bum Joon Kim ; Han Uk Ryu
Neurology Asia 2017;22(3):279-281
The most frequently reported neurological complication of a wasp sting is ischemic stroke. We
treated a patient with wasp sting with unusual complications. A 52-year-old man was hospitalized
for anaphylactic shock after multiple wasp stings. Although the patient recovered consciousness
after 2 days, he had global aphasia and right hemiparesis. Brain magnetic resonance imaging and
angiography revealed high-intensity signals in the left basal ganglia and cerebral cortex and stenosis
of the left middle cerebral artery. After 2 days, the middle cerebral artery stenosis improved. After 5
days, diffusion-weighted imaging showed an enlarged lesion in the left frontal cortex. The infarct in
this case was due to a predominantly unilateral vasoconstrictive hypoxic brain injury from wasp stings.
Brain Injuries
4.A study about clinical application of growth changes in sagittal jaw relation and incisor position.
Korean Journal of Orthodontics 1982;12(1):27-30
The growth changes in position of upper and lower jaws, incisal inclination in relation to anterior cranial base have been described. Twenty five males was studied quantitavely by means of serial cephalometric reontgenogram from seven to thirteen years of age. The findings seem to warrant the following conclusions: 1. Growth change in anteropaterior of upper and lower jaws to the anterior cranial base showed very littel change before eleven years of age but axial inclination of incisal teeth tended to become labiaization in relation to the anterior cranial base. 2. After eleven years of age, there wasn¥t nearly labialization of incisal teeth but jaw prognathism occurred a little in relation to the anterior cranial base.
Humans
;
Incisor*
;
Jaw*
;
Male
;
Prognathism
;
Skull Base
;
Tooth
5.A morphological study on the soft and hard tissue facial profile of harmonious Korean young adult females.
Korean Journal of Orthodontics 1986;16(1):7-34
No abstract available.
Female*
;
Humans
;
Young Adult*
6.MR Imaging of Anterior Cruciate Ligament Injury: Associated Findings.
Jin Mo GOO ; Heung Sik KANG ; Chu Wan KIM ; Gi Seok HAN ; Kyu Hyung CHO ; Sang Cheol SEONG
Journal of the Korean Radiological Society 1995;32(4):617-623
PURPOSE: Authors investigated the associated findings and their value in the diagnosis of anterior cruciate ligament(ACL) injury in MR image. MATERIAL AND METHODS: The knee MR images of 47 patients with ACL injury(complete; 24, partial; 23) and 61 patients with normal ACL confirmed by the knee arthroscopy or operation were reviewed retrospectively. The degree of anterior translocation of tibia and the degree of posterior cruciate ligament(PCL) buckling were evaluated. The prevalence and pattern of associated adjacent bone, ligament and meniscus injuries were studied. RESULTS: The means( +/- 2standard errors) of anterior translocation were different significantly in statistical analysis(p<0.001, student t-test) between injury group(7.51 +/- 1.16mm) and normal group(-0.56 +/- 0.92mm). In the level of 5mm of anterior translocation for the criteria of ACL injury, the sensitivity, specificity, accuracy were 78.7%, 89.5%, 84.3% for each. The means of PCL buckling ratio were also different statistically b. etween injury group(0.23 +/- 0.02) and normal group(0.17 +/- 0.01)(p<0.001). In the level of 0.20 for diagnostic criteria of ACL injury, the sensitivity, specificity, accuracy were 71.4%, 83.6%, 78.4% for each. Thirty one medial meniscus tear(66%), thirteen lateral meniscus tear(28%), ten medial collateral ligament injury(28%), one PCL injury (2%) were associated with ACL injury. The twenty nine bone marrow changes were found in twenty patients {43%) which included acutely injured seven patients. In acute cases, the bone marrow changes were depicted as diffuse or focal high signal intensity lesions in lateral femoral or tibial condyles in contrast to the changes in chronic cases depicted as focal low signal intensity lesions in variable location. Lateral femoral condylar notch depression were found in nine patients(19%) and avulsion fractures of anterior tibial spine in four patients(9%). CONCLUSION: The associated findings with ACL injury (anterior translocation, buckling of PCL, associated bone, ligament and meniscus injuries) are considered to be helpful in the diagnosis of ACL injury on Knee MR images, when the findings of anterior cruciate ligament itself are not confirmative.
Anterior Cruciate Ligament*
;
Arthroscopy
;
Bone Marrow
;
Collateral Ligaments
;
Depression
;
Diagnosis
;
Humans
;
Knee
;
Ligaments
;
Magnetic Resonance Imaging*
;
Menisci, Tibial
;
Prevalence
;
Retrospective Studies
;
Sensitivity and Specificity
;
Spine
;
Tibia
7.MR Imaging of Anterior Cruciate Ligament Injury: Associated Findings.
Jin Mo GOO ; Heung Sik KANG ; Chu Wan KIM ; Gi Seok HAN ; Kyu Hyung CHO ; Sang Cheol SEONG
Journal of the Korean Radiological Society 1995;32(4):617-623
PURPOSE: Authors investigated the associated findings and their value in the diagnosis of anterior cruciate ligament(ACL) injury in MR image. MATERIAL AND METHODS: The knee MR images of 47 patients with ACL injury(complete; 24, partial; 23) and 61 patients with normal ACL confirmed by the knee arthroscopy or operation were reviewed retrospectively. The degree of anterior translocation of tibia and the degree of posterior cruciate ligament(PCL) buckling were evaluated. The prevalence and pattern of associated adjacent bone, ligament and meniscus injuries were studied. RESULTS: The means( +/- 2standard errors) of anterior translocation were different significantly in statistical analysis(p<0.001, student t-test) between injury group(7.51 +/- 1.16mm) and normal group(-0.56 +/- 0.92mm). In the level of 5mm of anterior translocation for the criteria of ACL injury, the sensitivity, specificity, accuracy were 78.7%, 89.5%, 84.3% for each. The means of PCL buckling ratio were also different statistically b. etween injury group(0.23 +/- 0.02) and normal group(0.17 +/- 0.01)(p<0.001). In the level of 0.20 for diagnostic criteria of ACL injury, the sensitivity, specificity, accuracy were 71.4%, 83.6%, 78.4% for each. Thirty one medial meniscus tear(66%), thirteen lateral meniscus tear(28%), ten medial collateral ligament injury(28%), one PCL injury (2%) were associated with ACL injury. The twenty nine bone marrow changes were found in twenty patients {43%) which included acutely injured seven patients. In acute cases, the bone marrow changes were depicted as diffuse or focal high signal intensity lesions in lateral femoral or tibial condyles in contrast to the changes in chronic cases depicted as focal low signal intensity lesions in variable location. Lateral femoral condylar notch depression were found in nine patients(19%) and avulsion fractures of anterior tibial spine in four patients(9%). CONCLUSION: The associated findings with ACL injury (anterior translocation, buckling of PCL, associated bone, ligament and meniscus injuries) are considered to be helpful in the diagnosis of ACL injury on Knee MR images, when the findings of anterior cruciate ligament itself are not confirmative.
Anterior Cruciate Ligament*
;
Arthroscopy
;
Bone Marrow
;
Collateral Ligaments
;
Depression
;
Diagnosis
;
Humans
;
Knee
;
Ligaments
;
Magnetic Resonance Imaging*
;
Menisci, Tibial
;
Prevalence
;
Retrospective Studies
;
Sensitivity and Specificity
;
Spine
;
Tibia
8.Normoblasts and Lymphocytes Carry the Fused Bcr-Abl Gene in Chronic Myelogenous Leukemia: Two Color Fluorescence in Situ Hybridization(FISH) Analysis on the Blood Smears.
Chang Suk KANG ; Eun Jung LEE ; Won bae LEE ; Yong goo KIM ; Kyung Ja HAN ; Kyung Soo LEE ; Sang In SHIM
Korean Journal of Pathology 1998;32(1):58-62
We performed dual color fluorescence in situ hybridization (FISH) for the bcr/abl fusion in CML using the peripheral blood smears without destruction of cell morphology to determine the bcr/abl fusion. Two patients of CML, one patient in accelerated phase and one patient in chronic phase, were selected. The blood smears were fixed in absolute methanol. FISH was performed with the Mbcr/abl translocation DNA probe mixture and the slides were stained with Wright's stain after FISH. The blood smears of both cases revealed distinct signals without destruction of cellular morphology. The normoblasts and lymphocytes revealed beautiful fused bcr/abl signals as well as granulocytes in both cases. The results provide a novel finding that the normoblasts and lymphocytes in CML are also neoplastic clonal cells which has not been demonstrated with a single-cell approach before.
DNA
;
Erythroblasts*
;
Fluorescence*
;
Granulocytes
;
Humans
;
In Situ Hybridization
;
Leukemia, Myelogenous, Chronic, BCR-ABL Positive*
;
Lymphocytes*
;
Methanol
9.Hypoxic Brain Injury with Bilateral Dentate Gyrus Involvement.
Hyun Goo KANG ; Sung Kwang PARK ; Han Uk RYU
Journal of the Korean Neurological Association 2017;35(4):264-265
No abstract available.
Brain Injuries*
;
Brain*
;
Dentate Gyrus*
10.Cerebral Embolic Infarction Caused by Aortic Arch Thrombus with Iron Deficiency Anemia.
Pahn Kyu CHOI ; Han Uk RYU ; Hyun Goo KANG
Journal of the Korean Neurological Association 2017;35(3):155-157
Atherosclerotic lesions at the aortic arch are recognized as critical sources of embolic strokes. However, there have been few case reports of aortic arch thrombus occurring without atherosclerotic changes, especially those related to iron deficiency anemia (IDA). A 44-year-old woman was admitted due to rapid-onset right hemiparesis and aphasia. Etiological investigations for cerebral infarction revealed no abnormality other than IDA. This is a rare case of cerebral embolic infarction caused by an aortic arch thrombus with IDA in a middle-aged woman.
Adult
;
Anemia, Iron-Deficiency*
;
Aorta, Thoracic*
;
Aphasia
;
Cerebral Infarction
;
Female
;
Humans
;
Infarction*
;
Iron*
;
Paresis
;
Stroke
;
Thrombosis*