1.Arthritis as a cause of open bite.
Choong Kook YI ; Soo Won CHOI ; Jun Hong JEON
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1992;18(4):73-80
No abstract available.
Arthritis*
;
Open Bite*
2.Significance of colonoscopy in intestinal tuberculosis.
Won Jun CHOI ; Hong Young MOON ; Bum Hwan KOO
Journal of the Korean Surgical Society 1992;42(3):304-312
No abstract available.
Colonoscopy*
;
Tuberculosis*
3.Scintimetric Evaluation of Femoral Neck Fractures by Tc-99m-MDP: Experimental Study in the Mature Rabbits
Sung Jun HWANG ; Sang Won PARK ; Hong Kun LEE
The Journal of the Korean Orthopaedic Association 1987;22(5):1082-1089
In femorsl neck fracture, viability of the femoral head depends on the revascularization of the femoral head. The purpose of this study is to observe the effect of early fixation and anatomical reduction by measuring the Tc-99m-MDP uptake ratio of the femoral head in experimental animsls. Femoral neck region of 20 mature rabbits were osteotomized completely and divided into 2 groups ; each group consisted of 10 rsbbits. Group 1 had two Kirschner wire fixation after osteotomy and anatomic reduction. Group 2 had no fixation after osteotomy. The uptake ratio of Tc-99m-MDP of the femoral head in each group were measured st the intervals of 24 hours, 48 hours, 1 week, 2 weeks, 3 weeks, and 4 weeks, respectively. The results obtained were as follows ; 1. In experimental group 1, the mean uptake ratio of the femoral head was 0.72±0.13 at 1 day after operation, increased to a level of 1.44±0.14 at 1 week, increased to a maximal value of 2. 90±0.36 at 3 weeks and decreased to a level of 1.10+0.12 at 4 weeks. 2. In experimental group 2, the mean uptake ratio of the femoral head was 0.70±0.10 at 1 day, 0.64±0.13 at 1 week, decreased to a maximal value of 0.33±0.05 at 3 weeks and 0.47±0.05 at 4 weeks, showing decreased level below 1.0. The results suggest that early anatomicsl reduction and rigid fixation of femoral neck fracture is helpful for revascularization of the femoral head and prevention of non union.
Femoral Neck Fractures
;
Femur Neck
;
Head
;
Neck
;
Osteotomy
;
Rabbits
4.A case of recurrent Malaria : imported infection.
Se Hwan HAN ; Dong Won BYUN ; Won Seok CHU ; Jun Hee WOO ; Sung Tae HONG
Korean Journal of Infectious Diseases 1991;23(2):125-129
No abstract available.
Malaria*
5.Effect of Splenectomy in Adult Patients with Idiopathic Thrombocytopenic Purpura (ITP).
Chul Won CHOI ; So Young YOON ; Chang Won PAEK ; In Keun CHOI ; Jae Hong SEO ; Byung Soo KIM ; Sang Won SHIN ; Yeul Hong KIM ; Jun Suk KIM
Korean Journal of Hematology 1999;34(4):513-520
No abstract available.
Adult*
;
Humans
;
Purpura, Thrombocytopenic, Idiopathic*
;
Splenectomy*
6.Current Status of Children Born from Renal Transplanted Mother .
Ji Hyung YOO ; Jin Won YOOK ; Ji Hong KIM ; Pyung Kil KIM ; Sang Won HAN ; Myoung Jun KIM
Journal of the Korean Society of Pediatric Nephrology 2000;4(1):77-83
Fine needle aspiration of the breast is an important diagnostic tool in malignant lesions, but is also useful in differentiation of inflammatory breast diseases mimicking carcinoma clinically and radiologically. Recently, the authors have experienced eight biopsy-proven cases of chronic inflammatory diseases of the breast, which consisted of 4 cases of duct ectasia, 2 cases of fat necrosis, and a case of tuberculous mastitis and granulomatous mastitis respectively, Their cytoiogic features mainly based on the components and the relative frequency of inflammatory cells were evaluated for differential diagnosis of chronic inflammatory breast diseases. The results are as follows ; 1. In cases of duct ectasia, varying amount of neutrophils, mononuclear leukocytes, histiocytes and multinucleated giant cells were intermixed with benign epithelial cell clusters. 2, Abundant fat tissue fragments were diagnostic for fat necrosis. Histiocytes and mononuclear cells were main components but not rich, and neutrophils and giant cells were infrequently observed. 3. Characteristic granulomas composed of epithelioid cells, mononuclear leukocytes and Langhans' type giant cells and lymphocytic infiltrates were conspicuous in tuberculous mastitis, and occasionally neutrophils, necrotic materials and epithelial cell clusters were found. 4. In granulomatous mastitis, epithelioid cell granulomas were also noted but numerous neutrophils and histiocytes were intermingled within or outside the granulomas.
Biopsy, Fine-Needle
;
Breast
;
Breast Diseases
;
Child*
;
Diagnosis, Differential
;
Dilatation, Pathologic
;
Epithelial Cells
;
Epithelioid Cells
;
Fat Necrosis
;
Female
;
Giant Cells
;
Granuloma
;
Granulomatous Mastitis
;
Histiocytes
;
Humans
;
Leukocytes, Mononuclear
;
Mastitis
;
Mothers*
;
Neutrophils
;
Salivary Glands
7.Analysis of Children with Unilateral Multicystic Dysplastic Kidney ( MCDK ).
Ji Hyung YOO ; Jin Won YOOK ; Ji Hong KIM ; Pyung Kil KIM ; Sang Won HAN ; Myoung Jun KIM
Journal of the Korean Society of Pediatric Nephrology 2000;4(1):63-68
In a six-year period(1988. 5-1994. 4), fine needle aspiration cytology(FNAC) of 322 pulmonary lesions from 296 patients were performed at Soonchunhyang University Hospital. Of these 322, malignancy was diagnosed cytologically in 139(43.2%), suspicious malignancy in 7(2.2%), negative in 164(50.8%), and insufficient material in 12(3.8%). Malignant lesions consisted of 54 cases of adenocarcinoma, 50 cases of squamous cell carcinoma, 18 cases of small cell carcinoma. They were verified by histologic examination in 70 cases. There were 2(0.6%) false positive cases due to florid bronchoalveolar hyperplasia and atypical bronchial epithelial cells associated with granulomatous lesion. The overall accuracy rate was 90%, the sensitivity 84.3% and the specificity 94.7%.
Adenocarcinoma
;
Biopsy, Fine-Needle
;
Carcinoma, Small Cell
;
Carcinoma, Squamous Cell
;
Child*
;
Epithelial Cells
;
Humans
;
Hyperplasia
;
Multicystic Dysplastic Kidney*
;
Sensitivity and Specificity
;
Tuberculosis, Pulmonary
8.Correlation between Serum Erythropoietin and Cerebral Collateral Flow in Acute Ischemic Stroke Patient
Sung Won YUN ; Won Yong KIM ; Jun Beom LEE
Korean Journal of Family Medicine 2023;44(1):53-57
Background:
Erythropoietin (EPO), which is associated with anemia, exerts neuroprotective effects in ischemic stroke. In cases of stenosis or narrowing of the main cerebral blood vessel, the prognosis is favorable if collateral blood circulation is well developed in acute stroke. Several studies have investigated the relationship between EPO administration and stroke outcomes. The present study investigated the correlation between serum EPO level and cerebral collateral circulation, which could result in favorable clinical outcomes.
Methods:
The study subjects were patients diagnosed with acute ischemic stroke who underwent initial brain magnetic resonance imaging between January 2020 and March 2022. Following brain computed tomography perfusion for collateral flow, serum EPO levels were measured. Collaterals were assessed according to the Mass system and divided into good collateral (GC) or poor collateral (PC) groups. Serum EPO levels were determined using a chemiluminescence immunoassay method. A correlation coefficient analysis was conducted to determine the correlation between serum EPO levels and GC. A receiver operating characteristic curve analysis determined the cutoff value of EPO for GC.
Results:
Serum EPO levels were significantly higher in the GC than that in the PC group (P<0.05). The cut-off level of serum EPO for a good outcome was 9.1 mIU/mL.
Conclusion
A high serum EPO (>9.1 mIU/mL) could be a marker of GC in patients with acute ischemic stroke that predicts good clinical outcomes.
9.The Adequacy of a Conventional Mechanical Ventilator as a Ventilation Method during Cardiopulmonary Resuscitation: A Manikin Study.
Hong Joon AHN ; Kun Dong KIM ; Won Joon JEONG ; Jun Wan LEE ; In Sool YOO ; Seung RYU
Korean Journal of Critical Care Medicine 2015;30(2):89-94
BACKGROUND: We conducted this study to verify whether a mechanical ventilator is adequate for cardiopulmonary resuscitation (CPR). METHODS: A self-inflating bag resuscitator and a mechanical ventilator were used to test two experimental models: Model 1 (CPR manikin without chest compression) and Model 2 (CPR manikin with chest compression). Model 2 was divided into three subgroups according to ventilator pressure limits (P(limit)). The self-inflating bag resuscitator was set with a ventilation rate of 10 breaths/min with the volume-marked bag-valve procedure. The mode of the mechanical ventilator was set as follows: volume-controlled mandatory ventilation of tidal volume (Vt) 600 mL, an inspiration time of 1.2 seconds, a constant flow pattern, a ventilation rate of 10 breaths/minute, a positive end expiratory pressure of 3 cmH2O and a maximum trigger limit. Peak airway pressure (P(peak)) and Vt were measured by a flow analyzer. Ventilation adequacy was determined at a Vt range of 400-600 mL with a P(peak) of < or = 50 cmH2O. RESULTS: In Model 1, Vt and P(peak) were in the appropriate range in the ventilation equipments. In Model 2, for the self-inflating bag resuscitator, the adequate Vt and P(peak) levels were 17%, and the P(peak) adequacy was 20% and the Vt was 65%. For the mechanical ventilator, the adequate Vt and P(peak) levels were 85%; the P(peak) adequacy was 85%; and the Vt adequacy was 100% at 60 cmH2O of P(limit). CONCLUSIONS: In a manikin model, a mechanical ventilator was superior to self-inflating bag resuscitator for maintaining adequate ventilation during chest compression.
Cardiopulmonary Resuscitation*
;
Manikins*
;
Models, Theoretical
;
Positive-Pressure Respiration
;
Thorax
;
Tidal Volume
;
Ventilation*
;
Ventilators, Mechanical*
10.A Case of Mycosis Fungoides Treated with Recombinant Interferon - alpha and PUVA.
Jae Won KIM ; Seong Jun SEO ; Chang Kwun HONG ; Byung In RO
Korean Journal of Dermatology 1995;33(3):590-594
We report a case of mycosis fungoides in a 28 year-old female patient who had multiple, bizzare, kidney or annular shaped, erythematous to brownishaly patches and plaques on the trunk, buttock, upper and lower extremities. Histopathologic finclingm showed epidermotropism and Pautrir microabscess in the epidermis and sssatypical lymphocytes infiltration in the dermis. T cell marker in leukocyte common antigen were positively stained in an immunohistochemical study. The skin lesions were reproved markedly after treatment it a total dose of 45 x 10 IU recombinant interferonaiv combination with a total dose of 385 iules/art PUVA.
Adult
;
Antigens, CD45
;
Buttocks
;
Dermis
;
Epidermis
;
Female
;
Humans
;
Interferons*
;
Kidney
;
Lower Extremity
;
Lymphocytes
;
Mycosis Fungoides*
;
Skin