1.The changes of serum and urine potassium after extracorporeal circulation in open heart surgery.
Hong Don JUN ; Seung Pyung LIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1991;24(10):951-959
No abstract available.
Extracorporeal Circulation*
;
Heart*
;
Potassium*
;
Thoracic Surgery*
2.The Use of Acrylic Splint for Dental Alignment in Complex Facial Injury.
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(5):910-916
The surgical reconstruction of complex facial injuries have focused on the following; early one-stage repair, exposure of all fracture fragments, precise anatomic rigid fixation, immediate bone grafting, and definite soft tissue management were the main surgical procedures, as in other facial bone injuries. Complex facial bone fractures involving dentition should be managed by the same principles. However, conventional methods can not achieve accurate preinjury occlusion when there are unstable fracture segments, edentulous state, or complex palatal/maxillary and mandibular fractures. Seventeen patients were surgically reconstructed in conjunction with dental impression, model surgery, and fabrication of dental splints to establish better occlusion. Among the facial fractures that had the occlusal problem, maxillary/palatal fractures and complex mandibular fractures, were the major indications for fabrication of acrylic splints. During operation, fracture segments were reduced and repositioned according to dental wear facets of the prefabricated occlusal splint and then temporary intermaxillary fixations were performed. This allowed us to accomplish precise anatomical reduction and rigid intrenal fixations. The postoperative occlusions were acceptible and no complication occurred as direct effects of dental splint. We suggest that fabrication of an acrylic occlusal splint is necessary for the management of complex facial injuries involving dentition.
Bone Transplantation
;
Dentition
;
Facial Bones
;
Facial Injuries*
;
Humans
;
Mandibular Fractures
;
Occlusal Splints
;
Splints*
;
Tooth Wear
3.A Study on the Age-related Changes of Glycosaminoglycan in the Human Skin.
Seung Hoon CHA ; Seok Don PARK
Korean Journal of Dermatology 1997;35(3):499-506
BACKGROUND: The extracellular matrix constitutes the dermis supporting an overlying epidermal lining. A small portion of the cell component includes fibroblasts and mast cells, a large amount of fibrous tissue as struct ural proteins, intra-and extracellular adhesive molecules, and extracellular macromolecules, glyccsarninoglycan(GAG) and proteoglycan make up the dermal connective tissue. GAGs, polysacchavide chains secreted by fibroblasts, are the main macromolecules of the extracellular matrix. GAG chains occupy large amounts of extracellular space and form hydrated gels. The various manifestations observed during the cutaneous intrinsic aging process reflect the age-related changes of dermal connective tissue. OBJECTIVE: This study was directed to observe the age-related changes of GAG in human abdominal skin without the influences of photoaeging. MaTERIALS AND METHODS: The subjects involved in this study were grouped according to the age span of 10 years. A minimum of 3 skin samples were included in each age group. After permission, three to five grams of skin samples without known underlying skin diseases were obtained from the pat,ients who were subjected to open abdominal surgery under general anesthesia. GAGs were extracted and purified by repeated cetylpyridium chloride-ethanol precipitation from each skin sample. The qualitative and quantitative analysis of GAGs was carried out with the action of specific GAG degradirig enzymes. RESULTS: The amount of GAGs per gram skin tissue decreased slowly until the 4th decade and thereafter. A statistically- significant reduction in the amount of GAGs was noted between the age groups of under 10 and that of 51-60. This pattern of decline was similar with tte change of the hyaluronic acid content in gram skin tissue. The content of chondroitin sulfate and heparan sulfate also decreased as a function of ageing. The compositional ratio of GAGs showed no age related changes. The water content measured by acetone dehydration was reduced to a significant level up to the age group of over 30 years. CONCLUSION: These results imply that the wrinkling and laxity of skin during the chronological ageing process reflect the age-related reduction of GAGs and the water content of the skin.
Acetone
;
Adhesives
;
Aging
;
Anesthesia, General
;
Cellular Structures
;
Cetylpyridinium
;
Chondroitin Sulfates
;
Connective Tissue
;
Dehydration
;
Dermis
;
Extracellular Matrix
;
Extracellular Space
;
Fibroblasts
;
Gels
;
Heparitin Sulfate
;
Humans*
;
Hyaluronic Acid
;
Mast Cells
;
Proteoglycans
;
Skin Diseases
;
Skin*
;
Water
4.A prospective study in the management of the cystic thyroid nodules.
Seung Yeon CHO ; Young Don LEE
Journal of the Korean Surgical Society 1993;45(3):335-342
No abstract available.
Prospective Studies*
;
Thyroid Gland*
;
Thyroid Nodule*
5.The accuracy of sonographic measurement
In Don SEUNG ; In Sup SONG ; Kun Sang KIM ; Seung Hyeon KIM
Journal of the Korean Radiological Society 1986;22(5):912-917
Sonographic measurements often give considerable diagnostic significance. However, large discrepancy betweenthe real anatomic sizes and sonographic measurements could cause an incorrect diagnosis. Authors carried out aseries of experiment using a phantom and two scanners and the results are as follows: 1. There is a littledifference in errors between two scanners, and the mesurement does not almost always correspond to the realdistance. 2. The rates of errors of the measurements are almost fixed regardless of the positions of thereflcetors. 3. There is no relationship between the transducer MHZ and error rate. 4. As the error is derived from the scanner electronics it is necessary to calibrate the scanner periodically, and if not calibrated one shouldconsider the error rate of the scanner in the anatomical measurement.
Diagnosis
;
Transducers
;
Ultrasonography
6.A Case of Irritant Dermatitis due to Pulsatilla Koreana.
Ju Seob KIM ; Seung Hoon CHA ; Seok Don PARK
Korean Journal of Dermatology 1997;35(2):339-343
Pulsatilla koreana is a member of the buttercup familly(Ranuculaceae) which contains the unsaturated lactone, protoanemonin(C3H4O2), formed after injury to the plant by the breakdown of the glycoside ranunculin. It has been prescribed as a herbal medicine or a folk medicine for antipyretic, analgesic, anti-inflammatory, astringent and hemostatic effects in Korea. A 20 year-old famale patient presented with confluent vesicobullae on the erythematous base with a burning sensation on her upper back. This was caused by contact with crushed Pulsatilla koreana, a folk medicine for the treatment of left facial nerve palsy, that had occurred 10 days before her visit. A provocation patch test with Pulsatilla koreana upon a heathy male volunteers upper back showed strong positive reactions with the stalk and leaf in fresh and frozen stat.e and after thaw ing resptively. However no reaction was seen when the folk medicine was used in a dried form or with the root in any state. This case indicates that misadvice and ignorant folk remedies could cause misfortunate results to innocent people.
Burns
;
Dermatitis, Irritant*
;
Facial Nerve
;
Herbal Medicine
;
Humans
;
Korea
;
Male
;
Medicine, Traditional
;
Paralysis
;
Patch Tests
;
Plants
;
Pulsatilla*
;
Sensation
;
Volunteers
;
Young Adult
7.Giant cell tumor arising from the rib: a case report.
Hong Don JU ; Kyung Sin PARK ; Seung Pyung LIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1991;24(10):1024-1027
No abstract available.
Giant Cell Tumors*
;
Giant Cells*
;
Ribs*
8.Changes of Serum Cytokines ( TNF-alpha, IL-beta, IL-6 ) in Toxemic Mice Induced by Vibrio vulnificus Cytolysin.
Seok Don PARK ; Ju Seob KIM ; Seung Hoon CHA
Korean Journal of Dermatology 1998;36(1):23-29
BACKGROUND: Cytokines such as TNF-a, and IL-1, 6, 8 are thought to mediate many host responses in patients with sepsis through the release of many kinds of inflammatory mediators. Vibrio vulnificus is a virulent, halophilic, marine, and Gram-negative bacterium causing wound infections or primary sepsis with fulminant course. It has been known to produce many exocellular factors, such as cytolysin and exozymes, which are possible causes of shock and tissue damage. OBJECTIVE: Our purpose was to investigate the changes of cytokines(TNF-a, Il-l p, and IL-6) after intravenous administration of V. vulnificus cytolysin which have known to be a major virulent factor for elucidating pathogenesis of septic shock. METHODS: After administration of V. vulnificus cytolysin(20 hemolytic units) and physiologic saline through a mouse tail vein, we obtained blood samples from the heart according to a time course(0, 30, 60, 90, 120, 240, and 360 minutes). We measured serum concentrations of circulating TNF- a, IL-1 p, and IL-6 using commercially available immunoassay kits. RESULTS: The serum concentration of TNF- a peaked at 60 min (1894 pg/ml, as compared with 829 pg/ml after saline administration), began to decrease at 90 min and fell to baseline at 360min. Concentration of IL-6 rose significantly at 90 min(>3,839 pg/ml) and began to decrease at 120 min, whereas the level of IL-1 0 increased slightly and the peaked around 90min(117 pg/ml) after the cytolysin injection. CONCLUSION: We conclude that the host response to cytolysin is associated with a brief pulse of circulating cytokines in the early stage of sepsis caused by V. vulnipcus infection.
Administration, Intravenous
;
Animals
;
Cytokines*
;
Heart
;
Humans
;
Immunoassay
;
Interleukin-1
;
Interleukin-6*
;
Mice*
;
Perforin*
;
Sepsis
;
Shock
;
Shock, Septic
;
Tumor Necrosis Factor-alpha*
;
Veins
;
Vibrio vulnificus*
;
Vibrio*
;
Wound Infection
9.Clinical Observation of Encephalitis Empasizing the Clinically Suspected Herpes Encephalitis Cases.
Young Sook LEE ; Young Don LEE ; Yong Seung HWANG
Journal of the Korean Pediatric Society 1990;33(5):615-622
No abstract available.
Encephalitis*
;
Encephalitis, Herpes Simplex*
10.Combination Therapy with Griseofulvin and Immunotherap (DNCB, DPCP)on Plane Warts.
Sang Won JEONG ; Seung Hoon CHA ; Seok Don PARK
Korean Journal of Dermatology 1999;37(3):320-324
BACKGROUND: Although several kinds of treatment methods(destructive therapy, immunotherapy, etc) for plane warts have been attempted but there have been no entirely satisfactory treatments, because the plane wants are seen to recur frequently. OBJECTIVE: This study was aimed to evaluate the combination therapy of griseofulvin and immunotherapy(dinitrochlorobenzene=DNCB, diphenylcycloprope none=DPCP) on plane warts. METHOD: Sixteen patients(age range, 9 to 41; mean age, 21.8 years) with VPJ were treated with the combination therapy with griseofulvin(500mg/day) and single contact immunotherapy(DNCB or DPCP).
Dinitrochlorobenzene
;
Griseofulvin*
;
Immunotherapy
;
Warts*