1.Shigellosis - Pathogenesis and Current Epidemics.
Chul Hun Ludgerus CHANG ; Geun Am SONG ; Bok Kwon LEE
Korean Journal of Clinical Microbiology 1999;2(2):118-124
No abstract available.
Dysentery, Bacillary*
2.Two Cases of Segmental Neurofibromatosis.
Chang Geun CHO ; Il Hwan KIM ; Hae Jun SONG ; Chil Hwan OH
Korean Journal of Dermatology 1998;36(6):1083-1087
Neurofibromatosis(NF) is a disorder characterized by its relative commonness, variability, and heterogeneity. It is usually expressed as a generalized form, but is rarely localized in a limited part of the body as a segmental form. In 1981, Riccardi classified NF into 8 types and a segmental form (type V) was defined by limitation of cafe-au-lait spots and/or neurofibroma on a given unilateral segment of the body. Recently we came across two cases of typical segmental neurofibromatosis. The First case was a 53-year-old woman with localized neurofibromatosis on the right T8,9 dermatome. The Second case was a 34-year-old man with localized neurofibromatosis on the right T5,6 dermatome. There were no cafe-au-lait spots, axillary frecklings, Lisch nodules or a family history in both cases. We report these rare cases with a literature review.
Adult
;
Cafe-au-Lait Spots
;
Female
;
Humans
;
Middle Aged
;
Neurofibroma
;
Neurofibromatoses*
;
Population Characteristics
3.A Case of Umbilical Omphalomesenteric Duct Polyp.
Chang Geun CHO ; Seung Hyun HONG ; Gil Ju YI ; Hae Jun SONG ; Chil Hwan OH
Korean Journal of Dermatology 1998;36(1):107-110
A umbilical omphalomesenteric duct polyp is the result of incomplete closure of the omphalomesenteric duct, which connects the midgut with the yolk sac of the embryo. It may be associated with underlying embryologic anomalies such as Meckels diverticulum and umbilical enteric fistula, the complications of which may at times be fatal. This rare malformation should be clinically discerned from persistent granulation tissue or pyogenic granuloma. Histologically, it shows a polypoid lesion consisting of ectopic gastrointestinal epithelium with the appearance of gastric, intestinal, or colonic mucosa. We report a case of an umbilical omphalomesenteric duct polyp in an 8-year-old male patient, who had had a bright-red polyp on the umbilicus from the age of 1 month and had not had any other types of underlying abnormalities.
Child
;
Colon
;
Diverticulum
;
Embryonic Structures
;
Epithelium
;
Fistula
;
Granulation Tissue
;
Granuloma, Pyogenic
;
Humans
;
Male
;
Mucous Membrane
;
Polyps*
;
Umbilicus
;
Vitelline Duct*
;
Yolk Sac
4.INFLUENCE OF TOOTH SURFACE ROUGHNESS AND TYPE OF CEMENT ON RETENTION OF COMPLETE CAST CROWNS.
Kil Su KIM ; Chang Yong SONG ; Seung Geun AHN ; Charn Woon PARK
The Journal of Korean Academy of Prosthodontics 1999;37(4):465-473
Bond strength of luting cements to dentin is a critical consideration for success of complete cast crowns. This study was performed to evaluate the relationship between surface characteristics of teeth prepared for complete cast crowns and retention of cemented restorations. Eighty artificial crowns were cast for standardized complete crown tooth preparations accomplished with the use of a special device on recently extracted human teeth. Coarse diamond(#102R, Shofu) and superfine finishing diamond(#SF102R, Shofu) burs of similar shape were used. Crowns in each group were randomly subdivided into four subgroups of 10 for luting cements selected for this study: zinc phosphate cement (FLECK'S), polycarboxylate cement (Poly-F), reinforced glass ionomer cement (Fuji PLUS), and adhesive resin cement (Panavia 21). Retention was evaluated by measuring the tensile load required to dislodge the artificial crown from tooth preparations with an Instron testing machine, and analysed by one-way ANOVA and Student's t-test. The obtained results were as follows ; 1. When tooth preparation was done with coarse diamond bur, retentive force was diminished in order of Panavia 21, Fuji PLUS, FLECK'S, and Poly-F. Retentive forces showed the significant difference between Fuji PLUS group and FLECK'S group(p<0.001). 2. When tooth preparation was done with superfine diamond bur, retentive force was diminished in order of Fuji PLUS, Panavia 21, FLECK'S and Poly-F. Retentive forces showed the significant difference between Panavia 21 group and FLECK'S group(p<0.001). 3. Retentive force in coarse tooth surfaces was significantly higher than that in superfine tooth surface with all luting cements(p<0.001), and cement residues were almost retained with in the cast crown in all groups.
Adhesives
;
Crowns*
;
Dental Instruments
;
Dentin
;
Glass Ionomer Cements
;
Humans
;
Polycarboxylate Cement
;
Resin Cements
;
Tooth Preparation
;
Tooth*
;
Zinc Phosphate Cement
5.Bilateral aorto-renal bypasses: report of one case.
Young Chul YOON ; Jung Geun SONG ; Chul Hyun PARK ; Shin Yeong LEE ; Sang Joon OH ; Chang Ho KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(2):200-204
No abstract available.
6.Observation of the Serum Uric Acid in Essential Hypertension.
Jong Soo LEE ; Hang Geun PARK ; Young Min LEE ; Young Woo LEE ; Seung Won KIM ; Chang Sup SONG
Korean Circulation Journal 1987;17(1):159-167
We studied serum uric acid in 120 patients of essential hypertension visiting Department of Internal Medicine of Seoul Red Cross Hospital from October 1985 to November 1986 and analyzed its values in terms of various clinical and laboratory parameters. The results wereas follows; 1) The mean concentration of serum uric acid and incidence of hyperuricemia were 6.5+/-1.86mg%, 50.8% in hypertension group and those of normal control were 3.75+/-1.27mg%, 13.3%, respectively with significant high values in hypertension group. 2) The mean concentration of serum uric acid and the incidence of hyperuricemia were significantly correlated with the levels of diastolic blood pressure but there was only correlation between the incidence of hyperuricemia and the level of systolic pressure. 3) The mean concentration of serum uric acid and the incidence of hyperuricemia were significantly correlated with the level of BUN and serum creatinine, especially more in serum creatinine. 4) The mean concentration of serum uric acid and the incidence of hyperuricemia were not correlated with each level of serum cholesterol and triglyceride. 5) There was significant correlation between mean concentration of serum uric acid and abnormal urine finding but not in incidence of hyperuricemea.
Blood Pressure
;
Cholesterol
;
Creatinine
;
Humans
;
Hypertension*
;
Hyperuricemia
;
Incidence
;
Internal Medicine
;
Red Cross
;
Seoul
;
Triglycerides
;
Uric Acid*
7.A Study on Changes of Serum HDL-Cholesterol Level in Some Diseases.
Hang Geun PARK ; Woong Shik SHIN ; Kyeung Hwan YOU ; Jong Soo LEE ; Young Woo LEE ; Chang Sup SONG
Korean Circulation Journal 1987;17(3):471-478
A study on changes of serum HDL-cholesterol level in various diseased states was performed. Diseased groups were nephrotic syndrome, liver cirrhosis, hyperthyroidism, hypothyroidism and chronic alcoholism. Following results were obtained. 1) Compared to normal control group, levels of HDL-cholesterol in nephrotic syndrome were lower but the difference was significant statistically. 2) In liver cirrhosis, the result showed much lower levels than normal control group with high significance. 3) In both hyper-and hypothyroidism group, the levels of HDL-cholesterol were significantly lower than normal control group. 4) In chronic alcoholism, the levels were significantly higher than normal control group. 5) Except for the group of chronic alcoholism, the levels of HDL- cholesterol were higher in female groups than male groups, but was of no significance statistically.
Alcoholism
;
Cholesterol
;
Female
;
Humans
;
Hyperthyroidism
;
Hypothyroidism
;
Liver Cirrhosis
;
Male
;
Nephrotic Syndrome
8.Chondrosarcoma Arising from Benign Bone Tumor due to Malignant Transformation.
Wan hyeong CHO ; Won Seok SONG ; Chang Bae KONG ; Yun Suk HONG ; Jung Dong LEE ; Dae Geun JEON
The Journal of the Korean Bone and Joint Tumor Society 2011;17(1):17-22
PURPOSE: We analyzed the oncological outcome and prognostic factor of the chondrosarcoma arising from benign bone tumor due to malignant transformation. MATERIALS AND METHODS: From April 1986 to April 2009, 18 cases were considered eligible. We analyzed retrospectively the patient's characteristics and prognostic factors that affect to the local recurrence and distant metastasis. RESULTS: As classified by primary benign bone tumor, 4 cases were solitary osteochondroma, 11 cases were multiple osteochondromatosis and 3 cases were multiple enchondromatosis. The mean follow-up period was 85 months. The 5-year disease free survival rate of 18 patients was 85.9%. Their overall MSTS score was 25.2 (84%). There were local recurrence in 3 cases and no distant metastasis. We found that tumor location and surgical margin affected to the prognosis significantly. CONCLUSION: In secondary chondrosarcoma patients, the prognosis was good relatively and tumor location and surgical margin are important prognosis factor.
Chondrosarcoma
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Disease-Free Survival
;
Enchondromatosis
;
Follow-Up Studies
;
Humans
;
Neoplasm Metastasis
;
Osteochondroma
;
Osteochondromatosis
;
Prognosis
;
Recurrence
;
Retrospective Studies
9.Understanding Nutritional Support in Digestive Diseases.
Dong Kyung CHANG ; Geun Am SONG
The Korean Journal of Gastroenterology 2015;65(6):333-335
The prevalence of hospital malnutrition is still high in patients with digestive diseases, especially for those suffering from cancer and bowel diseases which cause malabsorption. It is well known that malnutrition is associated with delayed wound healing, impaired immunity, infection, increased complication, and poor convalenscence. Recently, nutrition screening and assessment by nutrition support team has become essential for nutrition management, and gastroenterologists comprise a dominant member of the nutrition support team. In critically ill patients and older people with chronic disease, nutritional support with enteral feeding and early feeding contributes to recovery and rehabilitation of patients. Securing enteral feeding routes, such as feeding tube insertion and placement of percutaneous endoscopic gastrostomy/jejunostomy, is an essential part of nutrition care that should be accomplished by gastroenterologists without much difficulty. It will also be necessary to recommend nutrition care as one of the clinical routines in gastrointestinal clinical practices. Therefore, education on nutrition care is strongly required as a part of gastroenterologist's training.
Critical Illness
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Digestive System Diseases/*pathology
;
Enteral Nutrition
;
Humans
;
Malnutrition/*prevention & control
;
*Nutritional Support
10.A Clinical Result of Pedicle Screw Fixation in Osteoporotic Spine: Complications and Prevention.
Eung Ha KIM ; Hyun Seok SONG ; Chang Geun KIM
Journal of Korean Society of Spine Surgery 2012;19(4):131-137
STUDY DESIGN: Retrospective study. OBJECTIVES: To analyze the clinical results of patients who were treated by pedicle screw fixation in osteoporotic spine and suggest the methods for preventing a loss of fixation strength. SUMMARY OF THE LITERATURE REVIEW: There are some methods to decrease failure rate and increase fixation strength in the osteoporotic spine: use bicortical screw, cement augmentation and supporting anterior column by interbody fusion using cages. MATERIALS AND METHODS: Forty-four patients treated by spinal instrumentation using pedicle screw from 2004 to 2011 were followed for at least 12 months. Five men and 39 women were diagnosed as osteoporotic spine (T score <-3.0). Two hundred forty eight pedicle screws were included and statistically analyzed the correlation between the use of bicortical screw, cement augmentation, anterior column support and fixation loss of the pedicle screw. Radiologic results were evaluated to find out the mechanical complications, like loosening of the screw, fixation failure, and nonunion. RESULTS: There were 9 complications associated with mechanical strength, loosening of pedicle screws in 7, sinking down of cage in 4, and nonunion in 4 cases. Using bicortical pedicle screw, cement augmentation and anterior column support were significantly correlated with the increasing fixation strength (P=0.001, P=0.047, P=0.014). In addition, these three factors contribute to stabilize the instrumentation (Linear by linear association, P=0.012). CONCLUSIONS: These 3 methods, using bicortical pedicle screw, cement augmentation and supporting anterior column, are effective to enhance the fixation strength and prevent loss of holding power in the osteoporotic spine.
Female
;
Humans
;
Male
;
Osteoporosis
;
Retrospective Studies
;
Spine