1.Two Cases of Subarachnoid - pleural Fistula Deu to Injury: Case Report.
Keun Oh RYU ; Hae Dong JHO ; Yung Rak YOO ; Nam Kyu KIM ; Hwan Yung CHUNG
Journal of Korean Neurosurgical Society 1982;11(2):241-244
The occurrence of fistulous tract between the thoracic subarachnoid space and the pleural cavity due to injury is uncommon. The one was developed after traffic accident and treated by surgical repair of the fistula : The other was post-operative complication of costotransversectomy for T2 sympathectomy. The complication was realized by the surgeon who was aware of the small leakage of cerebrospinal fluid from the dura propria of the T2 nerve root at the time of surgery. Intermittent pleural punctures for drainage and semisitting position were followed by spontaneous closure of the fistula. These cases were reported so that the uncommon condition might be added to the differential diagnosis of pleural effusion.
Accidents, Traffic
;
Cerebrospinal Fluid
;
Diagnosis, Differential
;
Drainage
;
Fistula*
;
Pleural Cavity
;
Pleural Effusion
;
Punctures
;
Subarachnoid Space
;
Sympathectomy
2.A longitudinal study of nasopharynx and adenoid growth of Korean children.
Chung Ju HWANG ; Young Kyu RYU
Korean Journal of Orthodontics 1985;15(1):93-103
Since the fact was known that mouth breathing resulted from the adenoid hypertropy causes malocclusion, many investigators have studied nasopharynx and adenoid in order to clatify the role in relation to the effect on face and coolustion and the development of arrway. The author analyzed 13 items in longitudinal cephalometric roentgenograms of 17 boys and 19 girls taken from the age of 7 to 12. The results were as follows. 1. The means and standard deviation for the measured items were obtained. 2. The continual growth of nasopharyngeal cavity was more affected by the height than the depth. 3. The size of adenoid was larger in males than in females, especially on R, D-AD2. 4. Airway percentage was highest in boys at age 10 and girls at age 9. 5. The items showed significant differentiation between males and females were airway percentage, posterior height, D-AD1, D-AD2, and R.
Adenoids*
;
Child*
;
Female
;
Humans
;
Longitudinal Studies*
;
Male
;
Malocclusion
;
Mouth Breathing
;
Nasopharynx*
;
Research Personnel
3.C. T. arthrography on Bankart lesion
Kwon Ick HA ; Sung Ho HAHN ; Min Young CHUNG ; Bo Kyu YANG ; Jae Hoon RYU
The Journal of the Korean Orthopaedic Association 1994;29(7):1716-1720
Accompanying to the development of the knowledgment of mechanism and pathology of recurrent dislocation of the shoulder, accurate diagnostic tools to detect that pathology have been developed. During the period from May 1990 to May 1992, we treated 28 cases of recurrent anterior dislocation of the shoulder. Twenty-eight cases were examined with C.T. arthrography before the operation. Among the 28 cases, we identified the Bankart lesion in 20 cases by C.T. arthrography, and in 21 cases intraoperatively. We concluded that the C.T. arthrography is an accurate method for confirming the clinical diagnosis of recurrent dislocation of the shoulder and to be helpful in detecting the Bankart lesion and its severity or pathologic findings.
Arthrography
;
Diagnosis
;
Dislocations
;
Methods
;
Pathology
;
Shoulder
4.Benign fibrous histiocytoma of the knee: a case report.
Kwon Ick HA ; Sung Ho HAHN ; Min Young CHUNG ; Bo Kyu YANG ; Jae Hoon RYU
Journal of the Korean Knee Society 1993;5(2):222-225
No abstract available.
Histiocytoma, Benign Fibrous*
;
Knee*
5.A study of golden proportion application in Korean normal dentition.
Seong Hee RYU ; Kyu Rhim CHUNG
Korean Journal of Orthodontics 1987;17(1):93-106
The purpose of this study was to investigate the fittness of Golden relation items was advocated by Ricketts whether or not it is applicable to the young adult Korean dentitions and also to evaluate the several new Golden relation items conducted by the author. The material was consisted of 81 dental casts (34 male, 47 female) with ideal occlusion, which never undergone orthodontic, prosthodontic procedures. Measurements were made on the arch dimensions using sliding caliper (Mitutoyo Co) and data were computerized and analyzed. The findings of this study were as follows, 1. The Golden proportion advocated by Ricketts dose not seem to directly applicable to the Korean normal dentition, however, the modification from the Ricketts' original shows the Golden proportion as follow. A first series of progressive Golden relations was found on the Golden ratio among the lower central incisors width, the inter mesioincisal width of the upper lateral incisors, and the upper first premolars width. A second series was found on the Golden ratio among the lower lateral incisors width, lower inter canine tips width and theupper first molar distal cusp tips width. A third series was found on the Golden ratio between the inter distal aspect width of lower canine and the mesial cusp tips width of the lower second molars or inter cusp tips width of upper second premolars. 2. In addition to RIcketts' original, 4 new Golden proportions were found in young adult Korean dentition, these are as follows, The tips of lower canine width had Golden relation with the width of the upper first premolar buccal cusp tips or the width of the lower first molar central fossae. The distal aspect of the lower first premolars had Golden relation with the buccal surface widths of the lower or upper second molars. The width of upper lateral incisors had Golden relation with the upper second molar height. The width of the lower canine tips had Golden relation with the lower second molar height.
Bicuspid
;
Dentition*
;
Humans
;
Incisor
;
Male
;
Molar
;
Prosthodontics
;
Young Adult
6.Angiearchitecture of Brain Arteriovenous Malformation and its Clinial Correlation.
Dong Ik KIM ; Young Hoon RYU ; Kyu Chang LEE ; Jae Joon CHUNG ; Tae Sub CHUNG ; Jung He SUH
Journal of the Korean Radiological Society 1994;31(4):583-591
PURPOSE: To analyze angiearchitecture of arteriovenous malformations(AV malformation) in order to clarify the angiegraphic risk factors for intracerebral hemorrhage and other nonhemorrhagic symptoms. MATERIALS AND METHODS: Eighty-five patients with angiegraphically-proved brain arteriovenous malformation were included in this study. Retrospective review of clinical history and angiography was done. Topographic analysis and evaluation of 17 angiearchitectural characteristics were conducted. RESULTS: Deep-seated and cortico-callosal type, small nidus size, intranidal pouch, one draining vein, deep venous drainage only venous stenosis and venous aneurysm were the most discriminating or predictive characteristics of hemorrhage in brain arteriovenous malformation. And those with large nidus size, dural supply and venous hypertension were correlated with nonhemorrhagic symptoms such as seizure, headache and neurologic deficit. CONCLUSION: Detailed analysis of the angiearchitecture of brain arteriovenous malformations is needed to identify the features that are correlated with prognostic implications for the treatment of patients with ^V malformations.
Aneurysm
;
Angiography
;
Arteriovenous Malformations*
;
Brain*
;
Cerebral Hemorrhage
;
Constriction, Pathologic
;
Drainage
;
Headache
;
Hemorrhage
;
Humans
;
Hypertension
;
Neurologic Manifestations
;
Retrospective Studies
;
Risk Factors
;
Seizures
;
Veins
7.The Effect of Antiglaucoma Medication on Cultured Human Conjunctival Epithelial Cells.
Journal of the Korean Ophthalmological Society 2006;47(11):1811-1818
PURPOSE: To investigate the toxicity of a short-term application of timolol maleate, dorzolamide, and benzalkonium chloride (BAC) on human conjunctival epithelial cells in vitro. METHODS: Chang's conjunctival epithelial cell line was treated for 5 min, 15 min, 30 min, and 60 min with various concentrations of timolol, dorzloamide, or BAC, and then examined 4 hrs or 24 hrs later. Cell viabilities were assessed by MTT assay. The expressions of various cytokines by timolol maleate, dorzolamide, and BAC treatment in human conjunctival epithelial cells were evaluated using ELISPOT. RESULTS: BAC significantly decreased survival of conjunctival epithelial cells in a dose and time dependent manner compared with timolol and dorzolamide. Inflammatory cytokines, IL-6 and IL-8, were highly expressed in conjunctival epithelial cells treated with timolol, dorzolamide, and BAC. CONCLUSIONS: The present study suggests that increased expression of inflammatory markers, IL-6 and IL-8 might explain the ocular surface disorder in patients receiving antiglaucoma medication.
Benzalkonium Compounds
;
Cell Survival
;
Cytokines
;
Enzyme-Linked Immunospot Assay
;
Epithelial Cells*
;
Humans*
;
Interleukin-6
;
Interleukin-8
;
Timolol
8.Percutaneous transluminal angioplasty of atherosclerotic obstructive disease.
Yong Yun JEONG ; In Hoon RYU ; Jeong Jin SEO ; Won Jae LEE ; Jae Kyu KIM ; Heung Keun KANG ; Hyon De CHUNG
Journal of the Korean Radiological Society 1991;27(5):656-661
No abstract available.
Angioplasty*
9.A longitudinal study on the interrelationship between the growth change of the gonial angle and IMPA.
Chin Su CHUNG ; Young Kyu RYU ; Byung Wha SOHN ; Young Joon KIM
Korean Journal of Orthodontics 1999;29(4):435-444
This study was undertaken to investigate the growth change of gonial angle and interrelationship between the growth change of gonial angle and IMPA in the longitudinal data from 7 years to 15 years. By analyzing the serial lateral cephalograms of 15 males and 18 females of 7 years old to 15 years old who had no abnomality in growth and development and no history of orthodontic treatment, the following conclusion were obtained. 1. Gonial angle gradually decreased with aging in 25 children and in 9 children increased or maintained. 2. There was a tendency that children who decreased gonial angle with aging showed gradual increase of IMPA and children who increased of maintained gonial angle with aging showed decrease of IMPA 3. There was a tendency that regardless of the change of gonial angle, interincisal angle decreased with aging.
Adolescent
;
Aging
;
Child
;
Female
;
Growth and Development
;
Humans
;
Longitudinal Studies*
;
Male
10.Testosterone Replacement and Bone Mineral Density in Male Pituitary Tumor Patients.
Min Jeong LEE ; Hyoung Kyu RYU ; So Yeon AN ; Ja Young JEON ; Ji In LEE ; Yoon Sok CHUNG
Endocrinology and Metabolism 2014;29(1):48-53
BACKGROUND: Hypopituitarism is associated with osteoporosis and osteopenia especially when hypogonadotropic hypogonadism is present. Despite hypopituitarism being an important cause of secondary osteoporosis, osteoporosis in patients receiving surgery for pituitary tumors in Korea has not been studied. In this study, we evaluated the effects of testosterone replacement therapy (TRT) on bone mineral density (BMD) in postoperative hypogonadal patients with pituitary tumors. METHODS: To examine the effect of TRT on BMD, we performed a retrospective observational study in 21 postoperative male patients who underwent pituitary tumor surgery between 2003 and 2012 at the Ajou University Hospital. Testosterone was replaced in postoperative hypogonadal patients by regular intramuscular injection, daily oral medication, or application of transdermal gel. BMD (g/cm2) measurements of central skeletal sites (lumbar spine, femoral neck, and total femur) were obtained using dual-energy X-ray absorptiometry (GE Lunar). For lumbar spine BMD, L1 to L4 values were chosen for analysis. Femur neck and total femur were also analyzed. RESULTS: During the follow-up period (mean, 56 months; range, 12 to 99 months) serum testosterone levels increased with the administration of TRT (P=0.007). There was significant improvement (4.56%+/-9.81%) in the lumbar spine BMD compared to baseline BMD. There were no significant changes in the femur neck BMD or total femur BMD. We did not find any statistically significant relationships between changes in testosterone levels and BMD using Spearman correlation analysis. CONCLUSION: Our results indicated that TRT used in the postoperative period for hypogonadal pituitary tumor surgery patients may have beneficial effects on the BMD of the spine.
Absorptiometry, Photon
;
Bone Density*
;
Bone Diseases, Metabolic
;
Femur
;
Femur Neck
;
Follow-Up Studies
;
Humans
;
Hypogonadism
;
Hypopituitarism
;
Injections, Intramuscular
;
Korea
;
Male*
;
Observational Study
;
Osteoporosis
;
Pituitary Neoplasms*
;
Postoperative Period
;
Retrospective Studies
;
Spine
;
Testosterone*