1.TISSUE EXPANSION FOR HAIR REPLACEMENT SURGERY AND TREATMENT OF MALE PATTERN BALDNESS.
Hyung Jun KIM ; Sang Hwan KOO ; Duk Sun AHN ; Byung Kyu SOHN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(4):839-846
No abstract available.
Alopecia*
;
Hair*
;
Humans
;
Male*
;
Tissue Expansion*
2.Standard Setting in Student Assessment by Criterion Referenced Evaluation.
Korean Journal of Medical Education 2001;13(1):41-45
Licensure, credentialling and academic institutions are seeking new innovative approaches to the assessment of professional competence. Central to these recent initiatives is the need to determine standards of performance, which separated the competent from the non-competent candidate. The goal of this study is to introduce the criterion referenced standard-setting methods to medical Schools. The authors used Angoff and Jaeger method, which are the simplest absolute standard setting methods. In this study, the cut-off score estimated by Jaeger method was higher than that of Angoff method.
Humans
;
Licensure
;
Professional Competence
;
Schools, Medical
3.A Survey of the Outcome of Childhood Asthma.
Hyung Ja PARK ; Myung Ik LEE ; Sun Wha KIM ; Don Hee AHN ; Keun Chan SOHN
Journal of the Korean Pediatric Society 1987;30(1):55-63
No abstract available.
Asthma*
4.Three Cases of Nephrogenic Diabetes Insipitus.
Hey Sun LEE ; Byoung Hai AHN ; Jong Jin SEO ; Hyung Ro MOON
Journal of the Korean Pediatric Society 1984;27(9):912-917
No abstract available.
5.Assessment of Genotoxic Hazard in Petrochemical Workers.
Jai Dong MOON ; Soon Phal SUH ; Jung Sun PARK ; Jin Hyung CHO ; Ki Won AHN
Korean Journal of Occupational and Environmental Medicine 1998;10(1):53-60
In order to evaluate the genotoxic hazard among workers potentially exposed to low level petrochemical substances, the analyses of micronuclei (MN) and sister chromatid exchanges (SCEs) in lymphocytes were performed in 46 male workers (as exposed group) and 46 nonexposed subjects (as control group). Mean frequencies of MN and SCEs (respectively, 12.9/1000 cells and 6.5/cell) in exposed group were very significantly higher than those (10.2/1000 cells and 5.4/cell) in control group. And there were also significant differences in mean frequencies of MN and SCEs adjusted for age, employment duration, smoking, and drinking between two groups. Median frequencies of MN and SCEs in exposed group were very significantly higher than those in control group. Frequencies of SCEs were higher in smokers than in non-smoker. Frequencies of MN in smokers, however, were similiar to those of non-smoker. Interaction between exposure and smoking on MN and SCEs induction was not observed. The results suggest that there is genotoxic hazard in high risk group like workers handling carcinogens in petrochemical plants and the analyses of MN and SCEs are useful biomarkers for the exposure to hazard substances even at the level below the exposure limit.
Biological Markers
;
Carcinogens
;
Drinking
;
Employment
;
Humans
;
Lymphocytes
;
Male
;
Sister Chromatid Exchange
;
Smoke
;
Smoking
6.A Case of Pedunculated Pigmented Eccrine Poroma Combined with Congenital Melanocytic Nevus on the Scalp.
Kyung Hyung SEO ; Ho Sun JANG ; Kyung Sool KWON ; Tae Ahn CHUNG
Korean Journal of Dermatology 1997;35(1):169-173
It has been generally assum d that eccrine poroma arises from acrosyringium, the epidermal sweat duct unit. Eccrine poroma mainly involves the non hairy surfaces of the skin, but it has also been found on hair-bearing areas. One of the characteristics of this structure is absence of melanocytes and melanin granules arnong its cells. However a complete absence of melanocytes and melanin granules in eccrine poroma is not invariable and a few reports of such an occurrence have been presented. The authors report herein a case of unusual and rare eccrine poroma. The eccrine poroma had melanin pigment and melanocytes, was pedunculated and occurred on the parietal scalp which was the unusual site of involvement. The eccrine poroma was also combined with a pedunculated congenital melanocytic nevus on the supraauricular scalp.
Melanins
;
Melanocytes
;
Nevus, Pigmented*
;
Poroma*
;
Rabeprazole
;
Scalp*
;
Skin
;
Sweat
7.A Case of pseudoglucagonoma Syndrome Treated with Medium-chain Triglyceride.
Kyung Hyung SEO ; Jung Hum PARK ; Ho Sun JANG ; Kyung Sool KWON ; Tae Ahn CHUNG
Korean Journal of Dermatology 1997;35(3):593-599
Necrolytic migratory erythema is a rare, distinctive, necrotizing cutaneous eruption usually associated with glucagonoma, an alpha-cell tumor of the pancreas. Other clinical features include ane- mia, diabetes mellitus and weight loss. However, it also occurrs without the pancreatic glucagonoma. So this rare condition is called pseudoglucagonoma syndrome, and has been described in association with chronic hepatic diseases, malabsorption with villous atrophy, chronic pancreatitis, celiac sprue, hypoproteinemia and odontogenic infection. We report a case of pseudoglucagonoma syndrome induced by malnutrition without glucagonoma. A 28-year-old Korean female was referred to our department complaining of multiple erythematous, desquamative, crusted and erosive patches on the extremities, and diffuse scalp alopecia for 5 years. She also had perianal erosion, angular cheilitis without glossitis, amenorrhea, axillary and pubic hair loss, and weight loss. Six years previously she had had Whipples operation for a pancreatic solid and papillary neoplasm. The laboratory data showed hypoalbuminemia, essential fatty acid deficiency, diabetes mellitus and slightly high levels of zinc and glucagon. A skin biopsy showed irregular acanthosis, epidermal edema and pallor, dyskeratosis, areas of superficial epidermal necrosis and vascular dilatation of the papillary dermis. The patient improved dramatically after intravenous hyperalimentation and oral intake of mediurn chain triglyceride. For 2.5 years she has taken medium-chain triglycerides without any other treatment, and no side effects on recurrence has been observed.
Adult
;
Alopecia
;
Amenorrhea
;
Atrophy
;
Biopsy
;
Celiac Disease
;
Cheilitis
;
Dermis
;
Diabetes Mellitus
;
Dilatation
;
Edema
;
Extremities
;
Female
;
Glossitis
;
Glucagon
;
Glucagonoma
;
Hair
;
Humans
;
Hypoalbuminemia
;
Hypoproteinemia
;
Malnutrition
;
Necrolytic Migratory Erythema*
;
Necrosis
;
Pallor
;
Pancreas
;
Pancreatitis, Chronic
;
Parenteral Nutrition, Total
;
Recurrence
;
Scalp
;
Skin
;
Triglycerides*
;
Weight Loss
;
Zinc
8.A Case of Niemann-Pick Disease with Sea-Blue histiocytes in the Bone Marrow.
Young Sun KIM ; Soo Heum LIM ; Jeong Kee SEO ; Hyo Seop AHN ; Hyung Ro MOON
Journal of the Korean Pediatric Society 1985;28(12):1238-1244
No abstract available.
Bone Marrow*
;
Histiocytes*
;
Niemann-Pick Diseases*
9.Comparative study on postoperativeevaluation methods of knee ligament injuries.
Key Yong KIM ; Woo Shin CHO ; Sung Il BIN ; Hyung Sun AHN
The Journal of the Korean Orthopaedic Association 1993;28(3):948-954
No abstract available.
Knee*
;
Ligaments*
10.Risk Factors that Influence the Early Access Patency of an Arteriovenous Fistula in Hemodialysis Patients.
Jae Hyun AHN ; Min Su PARK ; Sun Jin PARK ; Hyung Joon AHN ; Ho Chul PARK
Journal of the Korean Society for Vascular Surgery 2008;24(2):130-134
PURPOSE: It is very important to obtain vascular access that resists repeated punctures and maintains an adequate blood flow for performing hemodialysis in patients with end stage renal disease. This study was designed to identify the risk factors that may influence the early patency rate of arteriovenous fistulas (AVFs). METHOD: We analyzed 304 cases of AVFs in 299 patients who underwent hemodialysis access surgery in our hospital from January 2000 to March 2007. The rate of early access failure and the risk factors of early access patency were evaluated retrospectively. RESULT: The rate of early access failure of an AVF was 14.5%. The early access failure group showed a higher incidence in women and in the patients with a previous history of ipsilateral central venous catheterization. Further examination by multivariate analysis demonstrated that a history of ipsilateral central venous catheterization was an independent risk factor for early access failure of AVFs. CONCLUSION: A history of ipsilateral central venous catheterization was an independent risk factor for early access failure of AVFs in this study.
Arteriovenous Fistula
;
Catheterization, Central Venous
;
Central Venous Catheters
;
Female
;
Humans
;
Incidence
;
Kidney Failure, Chronic
;
Multivariate Analysis
;
Punctures
;
Renal Dialysis
;
Retrospective Studies
;
Risk Factors