1.A clinical study on mandibular fracture
Hyun Seok JANG ; Jun Young YOU ; Yong Kwan KIM ; Byeong Eun YANG
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1997;19(2):181-189
Eating
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Female
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Hospitals, General
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Humans
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Male
;
Mandible
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Mandibular Fractures
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Respiration
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Tooth
;
Violence
2.Radius-Maumenee Syndrome Presenting with Ocular Pain and Conjunctival Injection: A Case Report.
Byeong Soo KANG ; Eun Ji LEE ; Hee Kyung YANG
Journal of the Korean Ophthalmological Society 2015;56(12):1969-1973
PURPOSE: Radius-Maumenee syndrome (RMS) is characterized by idiopathic dilated episcleral vessels usually associated with glaucoma. The authors report a case of a 32-year-old Korean male with dilation of the episcleral vessels and glaucoma in both eyes. CASE SUMMARY: A 32-year-old Korean male presented with conjunctival injection and chronic pulsatile ocular pain in both eyes for 11 years. His best corrected visual acuity was 20/20 in both eyes. Slit lamp biomicroscopy showed episcleral venous engorgement in both eyes. Fundus photographs revealed superotemporal and inferotemporal retinal nerve fiber layer defects and Humphrey visual field testing showed superior nasal steps and paracentral scotomas in both eyes. He suffered from chronic eye pain in both eyes although he had applied glaucoma medication and his symptoms had worsened during the past year. Brain magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) revealed no evidence of carotid cavernous fistula or other orbital lesions. Due to the presence of episcleral venous engorgement, glaucoma and negative tests for other possible diseases, he was diagnosed with RMS. CONCLUSIONS: RMS is an idiopathic disease with episcleral vessel dilation and frequently associated with glaucoma. Its diagnosis is confirmed by eliminating other possible causes of episcleral venous engorgement.
Adult
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Brain
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Diagnosis
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Eye Pain
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Fistula
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Glaucoma
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Glaucoma, Open-Angle
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Humans
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Hyperemia
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Magnetic Resonance Angiography
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Magnetic Resonance Imaging
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Male
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Nerve Fibers
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Orbit
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Retinaldehyde
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Scotoma
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Visual Acuity
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Visual Field Tests
3.Pediatric Fetal Rhabdomyoma Representing as Acute Mastoiditis: A Case Report and Literature Review
Byeong Jin KIM ; Yun Na YANG ; Chan Mi LEE ; Eun Jung LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 2022;65(5):283-287
Rhabdomyomas are rare benign tumors. Most extracardiac rhabdomyomas are found in the head and neck region, especially in the pharynx and larynx. Herein, we have described the case of a 1-year-old boy presenting with recurrent otorrhea and postauricular swelling. His symptoms were due to a mass that was histologically diagnosed as fetal rhabdomyoma (FR). Here, we report the first case of FR in the postauricular area. Clinicians should keep in mind the possibility of FR if a child presents with external auditory canal mass associated with recurrent otorrhea and signs of mastoiditis.
4.Fatal Propofol Infusion Syndrome Associated with Refractory Partial Status Epilepticus in a Patient with Cerebral Hyperperfusion Syndrome.
Sang Hun LEE ; Jee Hyun KWON ; Wook Joo KIM ; Sun Young KIM ; Hui Jun YANG ; Byeong Ju GWON ; Jong Min LEE ; Eun Mi LEE
Journal of the Korean Neurological Association 2014;32(4):293-297
Status epilepticus is rare complication of cerebral hyperperfusion syndrome and is a critical medical emergency that requires potent anesthetics. Propofol has the advantages of being rapid-acting and possessing a weaker cardiopulmonary suppression profile, but its use is associated with serious propofol infusion syndrome. We report herein a case of cerebral hyperperfusion syndrome after carotid endarterectomy presenting with refractory partial status epilepticus and fatal outcome associated with propofol infusion syndrome.
Anesthetics
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Emergencies
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Endarterectomy, Carotid
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Fatal Outcome
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Humans
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Propofol*
;
Status Epilepticus*
5.A Case of Metastatic Gastric Calcification in Acute Renal Failure.
Won LIM ; Sang Heon SONG ; Jungmin SON ; Jin KANG ; Byeong Yun YANG ; Eun Young SEONG ; Gwang Ha KIM ; Dong Won LEE ; Ihm Soo KWAK
Korean Journal of Nephrology 2009;28(1):53-57
In end stage renal disease, the precise mechanism of metastatic calcification remains unclear, except that it occurs with hyperphosphatemia, increased Ca x P product, and secondary hyperparathyroidism. It involves various organs such as lung, eye, stomach, kidney, and so on. A 62-year-old male patient, who had acute renal failure (ARF), developed gastric calcification in our institution. The ARF had been result of membranoproliferative glomerulonephritis (MPGN), and the metastatic calcification seemed to be caused by increased Ca x P product and hyperphosphatemia. This case shows that metastatic calcification could arise even in ARF.
Acute Kidney Injury
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Eye
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Glomerulonephritis, Membranoproliferative
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Humans
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Hyperparathyroidism, Secondary
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Hyperphosphatemia
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Kidney
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Kidney Failure, Chronic
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Lung
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Male
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Middle Aged
;
Stomach
6.Changing Patterns in the Clinical Characteristics of Korean Breast Cancer from 1996-2010 Using an Online Nationwide Breast Cancer Database.
Beom Seok KO ; Woo Chul NOH ; Sung Soo KANG ; Byeong Woo PARK ; Eun Young KANG ; Nam Sun PAIK ; Jung Hyun YANG ; Sei Hyun AHN
Journal of Breast Cancer 2012;15(4):393-400
PURPOSE: Breast cancer is one of the most frequent malignancies in Korean women, and its incidence is increasing at a rapid rate. Since 1996, the Korean Breast Cancer Society has collected nationwide breast cancer data using an online registration program and analyzed the data biennial. The purpose of this study was to evaluate the characteristics of Korean breast cancer and to analyze changes in these characteristics over the period of time. METHODS: Data were collected from 41 medical schools (74 hospitals), 24 general hospitals, and 6 private clinics. Data on the total number, gender, and age of newly-diagnosed breast cancer patients were collected through a questionnaire. Additional data were collected and analyzed from the online database. RESULTS: In 2010, 16,398 patients in Korea were newly diagnosed with breast cancer. The crude incidence rate of female breast cancer was 67.2 cases per 100,000, and the median age at diagnosis was 49 years. The incidence of breast cancer was highest in patients aged between 40 and 49 years. Since 1996, there has been a significant increase in the proportion of early-stage cancers (detected in stage 1 or 2), the percentage of estrogen receptor-positive cancers, and in the proportion of patients receiving breast-conserving surgery. CONCLUSION: The incidence and clinical characteristics of Korean breast cancer are slowly changing to the patterns of Western countries. To understand changing patterns in the characteristics of Korean breast cancer, the nationwide data should be continuously analyzed.
Aged
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Breast
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Breast Neoplasms
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Estrogens
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Female
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Hospitals, General
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Humans
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Incidence
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Korea
;
Schools, Medical
;
Surveys and Questionnaires
7.Effects of Celecoxib and Nordihydroguaiaretic Acid on Puromycin Aminonucleoside-Induced Nephrosis in the Rat.
Dong Won LEE ; Ihm Soo KWAK ; Soo Bong LEE ; Sang Heon SONG ; Eun Young SEONG ; Hyun Chul CHUNG ; Byeong Yun YANG ; Min Young LEE ; Mee Young SOL
Journal of Korean Medical Science 2009;24(Suppl 1):S183-S188
The selective cyclooxygenase-2 (COX-2) and 5-lipoxygenase (LOX) inhibitors might inhibit prostaglandin synthesis and reduce proteinuria. The present study was designed to investigate the anti-proteinuric effects of nordihydroguaiaretic acid (NDGA) as compared with celecoxib in puromycin aminonucleoside (PAN) nephrosis rats. Fifty five male Sprague-Dawley rats were divided into 4 groups; A, normal control; B, PAN group; C, PAN+COX-2 inhibitor (celecoxib) group; and D, PAN+5-LOX inhibitor (NDGA) group. After induction of PAN nephrosis through repeated injections of PAN (7.5 and 15 mg/100 g body weight), rats were treated with celecoxib, NDGA, or vehicle for 2 weeks. Twenty four hour urine protein excretions were significantly lower in PAN+celecoxib and PAN+NDGA groups than in PAN group. Serum creatinine (SCr) concentrations and 24 hr urine creatinine clearances (CCr) were not significantly different in the four groups. Electron microscopy showed that podocyte morphology was changed after the induction of PAN nephrosis and was recovered after celecoxib or NDGA administration. Celecoxib significantly recovered the expressions of nephrin, CD2AP, COX-2, and TGF-beta. NDGA also recovered TGF-betaexpression, but did not alter the expressions of nephrin, CD2AP and COX-2. The present study suggested that celecoxib and NDGA might effectively reduce proteinuria in nephrotic syndrome without impairing renal function.
Animals
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Anti-Inflammatory Agents, Non-Steroidal/pharmacology
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Body Weight
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Creatinine/blood
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Cyclooxygenase Inhibitors/pharmacology
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Male
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Microscopy, Electron
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Nephrosis/*chemically induced/drug therapy
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Nordihydroguaiaretic Acid/*pharmacology
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Podocytes/metabolism
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Puromycin Aminonucleoside/pharmacology/*toxicity
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Pyrazoles/*pharmacology
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Rats
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Rats, Sprague-Dawley
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Sulfonamides/*pharmacology
;
Time Factors
8.Post-treatment Effects of Erythropoietin and Nordihydroguaiaretic Acid on Recovery from Cisplatin-induced Acute Renal Failure in the Rat.
Dong Won LEE ; Ihm Soo KWAK ; Soo Bong LEE ; Sang Heon SONG ; Eun Young SEONG ; Byeong Yun YANG ; Min Young LEE ; Mee Young SOL
Journal of Korean Medical Science 2009;24(Suppl 1):S170-S175
5-Lipoxygenase inhibitor and human recombinant erythropoietin might accelerate renal recovery in cisplatin-induced acute renal failure rats. Male Sprague-Dawley rats were randomized into four groups: 1) normal controls; 2) Cisplatin group-cisplatin induced acute renal failure (ARF) plus vehicle treatment; 3) Cisplatin+nordihydroguaiaretic acid (NDGA) group-cisplatin induced ARF plus 5-lipoxygenase inhibitor treatment; 4) Cisplatin+erythropoietin (EPO) group-cisplatin induced ARF plus erythropoietin treatment. On day 10 (after 7 daily injections of NDGA or EPO), urea nitrogen and serum Cr concentrations were significantly lower in the Cisplatin+NDGA and Cisplatin+EPO groups than in the Cisplatin group, and 24 hr urine Cr clearances were significantly higher in the Cisplatin+EPO group than in the Cisplatin group. Semiquantitative assessments of histological lesions did not produce any significant differences between the three treatment groups. Numbers of PCNA(+) cells were significantly higher in Cisplatin, Cisplatin+NDGA, and Cisplatin+EPO groups than in normal controls. Those PCNA(+) cells were significantly increased in Cisplatin+NDGA group. These results suggest that EPO and also NDGA accelerate renal function recovery by stimulating tubular epithelial cell regeneration.
Animals
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Arachidonate 5-Lipoxygenase/administration & dosage
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Blood Urea Nitrogen
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Cisplatin/*toxicity
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Creatinine/urine
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Epithelial Cells/drug effects
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Erythropoietin/administration & dosage/*therapeutic use
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Kidney/metabolism
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Kidney Failure, Acute/*chemically induced/*drug therapy
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Kidney Tubules/drug effects
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Male
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Nordihydroguaiaretic Acid/*therapeutic use
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Rats
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Rats, Sprague-Dawley
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Regeneration
9.Factors determining renal function in Korean patients with autosomal dominant polycystic kidney disease.
Byeong Yun YANG ; Naria LEE ; Jung Min SON ; Jin KANG ; Eun Young SUNG ; Sang Heon SONG ; Dong Won LEE ; Soo Bong LEE ; Ihm Soo KWAK
Korean Journal of Medicine 2010;78(2):207-214
BACKGROUND/AIMS: Previous studies of autosomal dominant polycystic kidney disease (ADPKD) in Koreans have been predominantly cross-sectional and insufficient to elucidate factors determining renal function. METHODS: We retrospectively reviewed the medical records of 60 patients who were diagnosed with ADPKD in our hospital from 1995 to 2005. We surveyed the basal characteristics, symptoms, signs, blood and urine laboratory findings, radiologic extrarenal abnormalities, and kidney length through ultrasonography, and these measures were analyzed to identify their relationship to decreased renal function. RESULTS: The clinical characteristics, such as symptoms and signs, were similar to those reported previously. Following t-tests and simple regression analyses, the statistically significant variables related to renal function deterioration were as follows: hypertension (with decreased renal function, 2.5 mL/min/1.73 m2/year more rapidly than the no-hypertension group, p=0.006), hypercholesterolemia (p=0.007), hypernatremia (p=0.011), mean kidney length (beta=0.378, p=0.029), and albumin (beta=-2.067, p=0.003). The multiple regression analysis revealed that the significant factors were hypertension (beta=0.261, p=0.016), mean kidney length (beta =0.211, p=0.047), and hypernatremia (beta=0.244, p=0.024). CONCLUSIONS: The independent risk factors for deteriorating renal function in Korean patients with ADPKD were hypertension, hypernatremia, and mean kidney length.
Humans
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Hypercholesterolemia
;
Hypernatremia
;
Hypertension
;
Kidney
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Medical Records
;
Polycystic Kidney, Autosomal Dominant
;
Renal Insufficiency
;
Retrospective Studies
;
Risk Factors
10.A survey on the use of composite resin in Class II restoration in Korea.
Dong Ho SHIN ; Se Eun PARK ; In Seok YANG ; Juhea CHANG ; In Bog LEE ; Byeong Hoon CHO ; Ho Hyun SON
Journal of Korean Academy of Conservative Dentistry 2009;34(2):87-94
The purpose of this study was to assess the current materials, methods and difficulties according to the year of licence and educational background of Korean dentists in Class II direct composite resin restorations. Total 17 questions were included in the questionnaire. Questions were broadly divided into two parts; first, operator's information, and second, the materials and methods used in Class II posterior composite restoration. The questionnaire was sent to dentists enrolled in Korean Dental Association via e-mail. Total 12,193 e-mails were distributed to dentists, 2,612 e-mails were opened, and 840 mails (32.2%) were received from respondents. The data was statically analyzed by chi-square test using SPSS(v. 12.0.1, SPSS Inc, Chicago, IL, USA). Male dentists among respondents was 79%. 60.3% of the respondents acquired their licences recently (1998-2007), and 77% practiced in private offices. 83.4% have acquired their knowledge through school lectures, conferences and seminars. For the Class II restorations, gold inlays were preferred by 65.7% of respondents, while direct composite resin restorations were used by 12.1% amalgam users were only 4.4% of respondents. For the restorative technique, 74.4% of respondents didn't use rubber dam as needed. For the matrix, mylar strip (53.4%), metal matrix (33.8%) and Palodent system (6.5%) were used. 99.6% of respondents restored the Class II cavity by incremental layering. Obtaining of the tight interproximal contact was considered as the most difficult procedure (57.2%) followed by field isolation (21%). Among various bonding systems, 22.6% of respondents preferred SE Bond and 20.2% used Single Bond. Z-250 was used most frequently among a variety of composite resins.
Bisphenol A-Glycidyl Methacrylate
;
Chicago
;
Composite Resins
;
Congresses as Topic
;
Surveys and Questionnaires
;
Dentists
;
Electronic Mail
;
Humans
;
Inlays
;
Korea
;
Lectures
;
Male
;
Polyethylene Terephthalates
;
Postal Service
;
Rubber Dams
;
Surveys and Questionnaires