백반증 환자에서 이산화탄소 레이저를 이용한 수혜부 표피 제거후의 흡입수포 표피이식에 관한 연구

조한경 ( Han Kyoung Cho ),한승경 ( Seung Kyung Hann ),김정빈 ( Jung Bin Kim ),조성환 ( Sung Hwan Cho ),박윤기 ( Yoon Kee Park ) 대한피부과학회 1995 대한피부과학회지 Vol.33 No.5

Background : Epidermal grafting using cryotherapy for recipient sites is in widespread use. However the peripheral hypopigmented haloes that occur around the recipient sites require prolon gation of the treatment period. Objective : We used a CO2 laser to remove the epidermis of the recipient sites for betteri results. Methods : We treated lie localized vitiligo patients with CO2 laser to remove t.he epidermis and grafted suction blister rooves. We observed repigmentation and complications 1 month later. Results & Conclusions : The superiority of this method is demonstrated by the fact 1) all prodedures can be completed on the day of operation 2) the incidence of hypertrophic scar and peripheral hypopigmented halos can be observed.The problems of this method are 1) uneven repigmentation of recipient. sites 2) hyperpigrnentation of recipient sites (Kor J Dermatol 1995;33(5): 867-872)

국소형 경피증의 임상적 고찰

조한경 ( Han Kyoung Cho ),전수일 ( Soo Il Chun ) 대한피부과학회 1996 大韓皮膚科學會誌 Vol.34 No.1

Background: There has been an increase in incidence of localized scleroderma. However observations on the clinical aspects ot localized scleroderma have been scarce in Korea. Objective : The purpose of this study was to elucidate the clinical observations and associated diseases of localized scleroderma Methods : During a 10-year-period from Jan. 1984 to Dec. 1993, 61 patients were evaluated in regard to age incidence, sex ratio, clinical type, location and distribution of plaque and linear type, and associated conditions. Results : l. Age distribution from 4 to 61 years with mean of 27.6 years. Most patients were between 11 to 30 years of age. 2. Sex distribution of male 14 female 47 with 3: 1 ratio in favor of female. 3. No difference in right and left involvement. 4. Plaque and linear forms were predominant. 5. The plaque form was distributed evenly while the linear form involved mainly the head and neck. The linear form and generalized form appeared most frequently in developement of associated conditions. 6. ANA test results were positive in 14 patients and most of them were of the speckled pattern. 7. Of the 41 patients who were treated with d-penicillamine, 26 patients showed improvement of their lesions. (Kor J Dermatol 1996;34(1): 109-115)

수도권 신도시 보통사마귀의 특성

조한경 ( Han Kyoung Cho ),강원형 ( Won Hyoung Kang ),노병인 ( Byung In Ro ) 대한피부과학회 2008 大韓皮膚科學會誌 Vol.46 No.7

Background: Common warts are benign and usually self limiting skin lesions. However, there have been few studies to assess the characteristics of patients with common warts according to their local residence. Objective: The study was conducted to assess the characteristics of patients with common warts lived in Koyang area and northern area of Kyunggi. Methods: We carried out a retrospective analysis of patients with common warts, who had been diagnosed in the Myongji Hospital, Kwandong University College of Medicine from January 2006 to December 2006. Results: Two-hundred and eighty-one patients (128 male, 153 female) were analyzed. A group of patients aged under 10 years old showed most of the occurrences of common warts. The mean age was 16.1 years. Most of the patients visited our clinics within 10 month of the emergence of warts. Hands were more commonly involved than feet. More than half of the patients had one lesion at the time of their visit. Common warts were most prevalent in August. Cryotherapy was used to treat most of the patients. One-hundred and two patients showed complete recovery on clinical ground. The mean number of the treatment was 4.8 times. Atopic dermatitis was observed in 29 patients. Twenty-nine patients had also family members infected with common warts. Conclusion: We analyzed the characteristics of patients with common warts living in the Koyang area and northern area of Kyunggi. Further studies would be needed to assess the characteristics of common warts affected by different regional environments. (Korean J Dermatol 2008;46(7):909~914)

한국 여성의 팽창선줄에 대한 인식도 조사

김신한 ( Shin Han Kim ),이상주 ( Sang Ju Lee ),조한경 ( Han Kyoung Cho ) 대한피부과학회 2011 대한피부과학회지 Vol.49 No.9

Background: Striae distensae is a common skin condition that can happen to everyone. Most cases do not have serious problems, but those who are affected may suffer from strong cosmetic stress. There was an epidemiologic study of striae distensae in Korean adolescents. Up to now, variable treatment modalities have been tried including topical application of tretinoin and light-based therapy using pulsed dye lasers or fractional lasers. Objective: To evaluate the prevalence of striae distensae in Korean women and estimate their understanding. Methods: We carried out a survey targeting 256 healthy female adults without a history of medical disease and analyzed the results. Results: The number of patients with striae distensae were 219 (86.0%). Striae distensae was mostly seen at the thigh and calf (84.0%) and longitudinal formed striae, with their long axis parallel to the lines of skin tension, was the most frequent shape (44.0%). The most common color of the striae distensae was white (56.0%) and 78% of patients had experienced this before adulthood. Striae distensae is caused by two major factors, overweight (70.0%) and growth spurts (24.0%), and 244 patients (76.0%) replied that they felt uncomfortable because of this disorder. Nineteen patients (8.6%) with striae distensae had gone through treatment. Among them, 11 (5.0%) had technical treatment in dermatologic clinics such as, pulse dye laser, fractional laser, and chemical peeling. Eight patients (3.7%) were treated with folk remedies including moxibustion and acupuncture therapy. However, 154 patients (71%) responded that they wanted treatment for the striae lesion, and 93 patients (43%) have great intention to treatment. Conclusion: A lot of patients are still suffering from striae distensae, but so far there is no appropriate treatment. The biggest problem is that there is very little understanding of striae distensae. Patients should be aware of their striae distensae and we should provide appropriate treatment. (Korean J Dermatol 2011;49(9):780~785)

일측성 선상 건선

김신한 ( Shin Han Kim ),이상윤 ( Sang Yoon Lee ),고재완 ( Jae Wan Go ),손현옥 ( Hyun Ok Son ),이상엽 ( Sang Yeop Yi ),조한경 ( Han Kyoung Cho ) 대한피부과학회 2012 대한피부과학회지 Vol.50 No.4

Psoriasis vulgaris is one of the most common skin diseases in the world, which is recognized as an autoimmune disease that is caused by genetic and environmental factors. Plaque, guttate, pustular form, and psoriatic erythroderma are known as classical feature of psoriasis with tendency as generalized or sporadic appearance. There are some cases of uncommon forms in the shape and distribution, as nevoid and linear psoriasis. Linear psoriasis is a rare entity and thought as a variant of psoriasis, but its existence is still in debate. Herein, we report an interesting case of 19-year old Korean man with psoriasis, occurring on the right arm, following the line of Blaschko in a linear form. (Korean J Dermatol 2012;50(4):377∼380)

소아에서 머릿니 치료 경험이 체내 린단 잔류량에 미치는 영향

최홍순 ( Hong Sun Choi ),조한경 ( Han Kyoung Cho ),송재석 ( Jae Seok Song ),서종철 ( Jong Chul Seo ),박기영 ( Kie Young Park ),고재완 ( Jae Wan Go ),강원형 ( Won Hyoung Kang ),노병인 ( Byung In Ro ) 대한피부과학회 2009 大韓皮膚科學會誌 Vol.47 No.7

Background: Organochloride pesticides are prohibited around the world due to their toxicity and environmental persistence. However, lindane, one organochloride pesticide, is still widely used to treat head lice and scabies in Korea. Objective: For evaluation of the effect of lindane usage and blood lindane concentration, we conduct an evaluation of blood lindane concentrations among children who were treated for head lice. Methods: The total study population of 80 was divided into rural and urban areas. Age, sex, parent`s farming, sea food consumption and head lice treatment information were gathered using a structured questionnaire. Blood lindane concentrations were analyzed by a solid phase extraction(SPE) method. Quantitative analysis was done by GC/ECD. Non-parametric analysis was done for comparing blood lindane concentrations between the head lice treated group and the non treatment group. After a log transformation, regression analysis was done for controlling confounding variables. Results: The median age of the study population was 11. The study population involved 38 (47.5%) male and 42 (52.5%) female children. Twenty (25.6%) children were infested by head lice. The blood concentration of lindane was higher in the head licetreatment group [N.D (N.D-78.9)] than in the non-treated group [N.D (N.D-43.4), p<0.01]. The results were the same after regression analysis controlling for confounding variables. Conclusion: Lindane has toxicity to the endocrine system and nervous system and persists in the environment and in the human body. Therefore, careful usage of lindane shampoo is needed to treat head lice. (Korean J Dermatol 2009;47(7):777~783)

여드름 흉터에 대한 TCA 화학박피술의 치료효과

강진문 ( Jin Moon Kang ),조한경 ( Han Kyoung Cho ),이광훈 ( Kwang Hoon Lee ),이정복 ( Jung Bock Lee ) 대한피부과학회 1996 대한피부과학회지 Vol.34 No.6

Background : Trichloroacetic acid(TCA) chemical peel has been used for variable skin lesions. However, the effect of TCA chemical peel on acne scars has not been studied. Objective : The object of this study is to evaluate the effect of TCA chemical peel on atrop hic acne scars. Method: Twenty three patients with atrophic acne scars, who were treated with TCA chemical peel were included. The patieits were interviewed for evaluation of the therapeutic efficacy of TCA chemical peel regarding the number of treatment and satisfaction rates. Results : Those who received treatment for more than 6 times with good or excellent results were 13 out of 15 patients, whereas, those who received treatment for 4 times with good or excellent results were 4 out of 7 patients. Thus, chemical peel on acne scars showed that the more often the treatment was carried out, the better the therapeutic effect. There was no significant complication. Conclusion : TCA chemical peel is safe and effective for the treatment of atrophic acne scars. (Kor J Dermatol 1996;34(6): S19-923)

최근 6년간 피부질환으로 응급실에 내원한 환자에 대한 통계학적 고찰(2010∼2015)

최후민 ( Hoo Min Choi ),조한경 ( Han Kyoung Cho ) 대한피부과학회 2018 대한피부과학회지 Vol.56 No.2

Background: Dermatologic diseases comprise a significant portion of emergency department (ED) visits. However, minimal data exist on patients with skin diseases presenting to the ED. Objective: We sought to quantify and characterize recent ED visits by patients with skin concerns in our hospital. Methods: A retrospective study was conducted with patients treated by a dermatologist in the ED from January 2010 to December 2015. Results: We identified 464 patients with a mean age of 41.2 years (women, 57%; men, 43%). The highest and lowest incidence of ED visits for dermatologic concerns were in June (11.4%) and November (4%), respectively. Peak arrival time was in the evening between 6 and 9 PM (23.7%), while the lowest was in the morning, between 3 and 6 AM (2.1%). Based on in-residence time distribution, peak incidence occurred in less than 2 hours (73.2%), followed by 2∼4 hours (23.7%). Herpes zoster was the most common complaint (31.0%), followed by urticaria/ angioedema (12.9%) and contact dermatitis (10.3%). Overall, 23.7% (n=110) of the enrolled patients were admitted, mainly for herpes zoster (n=64, 60.9%). Erysipelas/cellulitis had the highest admission rate (50%, 7/14), followed by herpes zoster (46.5%, 67/144). Conclusion: This retrospective study provides data about patients with skin diseases presenting to the ED. Altogether, these data may assist not only EM specialists, but also dermatologists in diagnosing and treating patients with skin diseases more efficiently in the ED. (Korean J Dermatol 2018;56(2):99∼105)

고양시 소재 명지병원 피부과 환자의 통계적 고찰(2004~2008)

고재완 ( Jae Wan Go ),조한경 ( Han Kyoung Cho ),강원형 ( Won Hyoung Kang ),노병인 ( Byung In Ro ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.8

Background: There have been many reports that have focused on the incidence of skin diseases in big cities or provinces. However, there have been no reports concerning the data of a new town such as Goyang City. Objective and Methods: To study the prevalence of common dermatoses in the new town and to compare this with the previous reports, we reviewed the records of 15,064 outpatients who visited the Department of Dermatology at Myongji Hospital from 2004 to 2008, and we statistically analyzed the findings. Results: The study results are summarized as follows: Of the 15,064 outpatients, the total number of male patients was 6,779 (45.0%), and the number of female patients was 8,285 (55.0%). The most frequent age group was the fourth decade followed by the first decade, third decade and fifth decade, and these 4 age groups comprised 63.7% of the total outpatients. The 15 most common dermatoses were found to be viral warts, dermatophytosis, atopic dermatitis, seborrheic dermatitis, pruritus, urticaria, irritant contact dermatitis, herpes zoster, alopecia, allergic contact dermatitis, acne, other eczema, melanocytic nevus, molluscum contagiosum and postinflammatory hyperpigmentation. For the occurrence of dermatoses as disease groups, 1) viral diseases, 2) diseases resulting from fungi and yeasts, 3) atopic dermatitis, eczema and noninfectious immunodeficiency disorders, 4) contact dermatitis and drug eruptions, 5) pruritus and neurocutaneous dermatosis, 6) seborrheic dermatitis, psoriasis, recalcitrant palmoplantar eruptions, pustular dermatitisand erythroderma, 7) erythema and urticaria, 8) Melanocytic nevi and neoplasm, 9) disturbances of pigmentation, and 10) diseases of skin appendages constituted 82.2% of the total. Conclusion: The distinct characteristic of skin diseases of the new town Goyang City showed a high incidence of viral warts and viral skin diseases, as compared to the previous reports. (Korean J Dermatol 2009;47(8):896~903)

고양시 소재 명지병원 피부과 환자의 통계적 고찰(2009∼2013)

이숙영 ( Suk Young Lee ),최한규 ( Han Gyu Choi ),노병인 ( Byung In Ro ),조한경 ( Han Kyoung Cho ) 대한피부과학회 2015 대한피부과학회지 Vol.53 No.2

Background: Data regarding the incidence rates of skin diseases that are held by general hospitals provide readily available sources of information that may be representative of the provinces they serve. The population of Goyang city has increased rapidly. Hence, a statistical study of the latest data is necessary. Objective: This study aimed to investigate the prevalence rates of common dermatoses in Goyang city and to compare these with previous findings. Methods: We reviewed the records of 21,693 outpatients who visited the Department of Dermatology at Myongji Hospital from 2009 to 2013, and we statistically analyzed the findings. Results: Of the 21,693 outpatients’ records reviewed, 9,939 (45.8%) were male patients and 11,754 (54.2%) were female patients. Patients most frequently presented with dermatoses in the fourth decade of life (16.0%), followed by the first (15.2%), fifth (15.0%), and third (13.1%) decades of life, and these four age groups comprised 59.3% of the total number of outpatients. The 15 most common dermatoses were dermatophytoses, alopecia, other eczematous conditions, urticaria, herpes zoster infections, viral warts, atopic dermatitis, allergic contact dermatitis, seborrheic dermatitis, acne, irritant contact dermatitis, benign epidermal tumors, melanocytic nevi, molluscum contagiosum, and pruritus. Diseases that occurred frequently during the summer were dermatophytoses, urticaria, irritant contact dermatitis, herpes zoster infections, and molluscum contagiosum. Diseases that occurred frequently during the winter were other eczematous conditions, atopic dermatitis, and melanocytic nevi. Viral warts and acne occurred frequently in summer and winter. Seborrheic dermatitis, dermatophytoses, molluscum contagiosum, viral warts, alopecia, and benign epidermal tumors showed higher frequencies in males than in females, whereas allergic contact dermatitis, irritant contact dermatitis, herpes zoster infections, melanocytic nevi, urticaria, pruritus, acne, and other eczematous conditions showed higher frequencies in females than in males. Conclusion: Compared with previous studies, the current population of Goyang city showed higher levels of herpes zoster infections and viral warts.(Korean J Dermatol 2015;53(2):106∼112)