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아토피피부염과 환경요인 성균관의과대학 삼성서울병원 소아청소년과 안 강 모
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아토피피부염
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전국 초등학생, 중학생의 아토피피부염 유병률 ( 한국 어린이 청소년의 알레르기질환에 관한 전국적 역학조사 : 대한 소아알레르기 호흡기학회 ) 아토피피부염으로 진단받은 적이 있는 경우 (%) 16.6%24.9% 7.3%12.8%
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서울지역 초등학생의 아토피피부염 유병률 ( 한국 어린이 청소년의 알레르기질환에 관한 전국적 역학조사 : 대한 소아알레르기 호흡기학회 ) (%) 19.7%27.5%29.2%9.3%13.5%14.5% 아토피피부염으로 진단 받은 적이 있는 경우 최근 12 개월동안 아토피피부 염으로 치료받은 적이 있는 경 우
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알레르기 질환의 발생 기전 유전적 요인환경적 요인 알레르기 질환
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위생가설 (Hygiene Hypothesis) (New Engl J Med 2002;347:911-20)
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알레르기 질환의 면역상태 Th1Th2
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알레르기 질환의 면역상태 Th1 Th2
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출생 전후의 Th2 면역 상태의 변화
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아토피질환은 유전적 요인과 환경적 요인에 의해 발생한다. 유전요인환경요인 아토피질환의 진행 및 악화 면역상태의 변화 IgE 감작 아토피질환의 발생 알레르겐에의 노출
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알레르기 행진 01248163264 나이 ( 세 ) 알레르기비염식품알레르기천식아토피피부염 증상 중증도
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아토피피부염의 경과 출생 아토피피부염 관해 천식 / 알레르기비염 지속 / 악화 요인 분석
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Skin inflammation PruritusScratching Atopic dermatitis Dry skin Food allergen Infection Super-Ag stressirritants antihistamine Skin hydration /moisturizing antibiotics Steroid/ immunomodulation avoidance
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Environment and Atopic Dermatitis Indoor environment Outdoor environment Allergens Irritants
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Familiar and environmental factors influencing atopic dermatitis in the childhood J Eur Acad Dermatol Venereol 2006;20:418-22 Objectives –Family, birth weight (BW), home environment Methods –Case vs. control (461 : 343) in Hungary –Questionnaires (retrospective) Results –(+) : higher BW, small households, carpet, indoor pets –No : nursery, heating system, indoor smoking
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Atopic eczema and the home environment Br J Dermatol 2001; 145:730-6 Objectives –To assess the home environmental factors Methods –Cross sectional case-control (1,350 : 1,056) in UK Results –(+) : dampness, radiator, synthetic pillow –(-) : frequent vacuuming
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Early life risk factors for atopic dermatitis in Ethiopian children J Allergy Clin Immunol 2005 Objectives –To establish the risk factors in AD (parasite) Methods –Cross-sectional case-control study (ISAAC) –Case vs. control (306 : 426) Results –Prevalence rate = 4.2% –(+) : malaria, piped drinking water –No : parasite infection, family size, breast feeding
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Risk factors and prevalence of asthma or atopic dermatitis in young children by a questionnaire Survey J Nippon Med Sci 2004 Objectives –Risk factors & prevalence of AD (altitude) Methods –24,631 children in Japan –ATS-DLD questionnaire Results –(+) : male, age↑, FHx(+), higher altitude
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Factors influencing AD – A questionnaire survey of schoolchildren’s perceptions Br J Dermatol 2004 Objectives –To determine the exacerbating factors Methods –Questionnaire survey in UK ( 악화 / 호전 인자 ) –250 AD children Results – 악화 : sweating, wool, hot weather – 호전 : topical steroid, moisturizers, medicine –No effects of food on AD Sx (60%)
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The incidence of AD in school entrants is associated with individual life style factors but not with local environmental factors in Hannover, Germany Br J Dermatol 2002;147:95-104 Objectives –To assess the life-style factors on AD Methods –4,219 AD children, Germany (questionnaire) Results –(+) : more privileged SES, German nationality, ↑paternal SES, ↑daily duration of father’s professional work, lack of paternal shift work –No : air pollution, urbanization
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Environmental associations with eczema in early life Br J Dermatol 2001;144:795-802 Objectives –To investigate role of dietary & environmental factors ass. with development of AE Methods –Prospective cohort study in UK (n=624) Results –(+) : maternal education, maternal allergy Hx –(-) : crowded home
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Association between indoor renovation activities and eczema in early childhood Int J Hyg Environ Health 2006;209:241-7 Objective : to evaluate the effect of exposure to risk factors such as indoor air pollution during early childhood Methods : - birth cohort comprising of 2536 children in epidemiologic study (LISS: Leipzig infection, allergy and airway diseases sutdy among school starters) - redecoration activities (painting, floor covering, new furniture) before birth and in the first year of life
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Body burden of mercury is associated with acute atopic eczema and total IgE in children from southern Germany J Allergy Clin Immunol 2004;114:457-9 Objective : to investigate the associations of body burdens of (heavy) metals with AE Methods : - cross-sectional study with all school beginners in Augsburg, Bavaria in 1996 (n=1673) - recruitment : 164 children with AE (76 with acute symptoms and 98 without acute symptoms), 213 controls - concentration of arsenic, cadmium and mercury in morning urine by atopic absorption spectrometry
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Sublingual immunotherapy in mite-sensitized children with atopic dermatitis J Allergy Clin Immunol 2007;120:164-70 Objective : to assess the effect of sublingual IT in children with AD Methods : - a randomized, double-blind, placebo-controlled study - 56 children with AD (5-16 years) who are sensitized to dust mite alone - 28 with IT, 28 without IT - IT for 18 months
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Meteorological influence on NaOH irritation varies with body site Arch Dermatol Res 2005 Objectives –To assess the dry air & cold weather on AD Methods –544 occupational dermatitis –SMART (Swift Modified Alkaline Resistance Test) –Local ambient temperature, absolute humidity Results –(+) : low temperature & humidity (esp. ≤6 ℃, ≤8 mg/L)
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An exploratory prospective observational study of environmental factors exacerbating AE in children Br J Dermatol 2006 Objectives –To assess trigger factors in AD Methods –25 AD children in Ireland & UK –Using diary over 4 wk (prospective study) Results –Stress, damp & hot weather scratch scores.
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Influence of weather and climate on subjective symptom intensity in atopic eczema Int J Biometerol 2000 Objectives –To assess the meteorological factors Methods –7-year investigation (1983-1989) in Swiss –2,106 AD(15 meteorological variables on itch) Results –No : gender, age, atopic respiratory disease –(-) : air temperature, pressure, H 2 O pressure, duration of sunshine –(+) : snowfall, fog, thunderstorm
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Concentrations and determinants of NO 2 in homes of Ashford, UK and Barcelona and Menorca, Spain Indoor air 2004 Objectives –To assess indoor NO 2 & gas combustion, ETS Methods –1,421 home of AD (using filter for 7~15 days) –Cohort study Results –NO 2 : Barcelona > Ashford & Menorca –Sources of NO 2 : heating/cooking fuel, parental smoking
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Trends of prevalence of AD in schoolchildren : A longitudinal study in Osaka prefecture, Japan from 1985 to 1997 Br J Dermatol 2001 Objectives –To assess the relationship between prevalence and environmental factors Methods –4,000,000 Japan primary school (1985-1997) Results –Increment of AD prevalence stopped in 1993. –(+) : air pollution↓, income index↑
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Allergy trigger-free room 대기 / 실내공기 / 물 / 음식 등의 알레르겐 및 오염물질 제거 환자의 증상 악화를 유발하는 환경적 요인들을 조절 중증도와 관련된 환경적인 요인 분석 중증환자들을 화학 ( 생물 ) 적으로 청정한 병실 입원 치료 / 연구
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Allergy trigger-free room 의 설치 조건 온 · 습도 조절 장치 에어 샤워 시설 오존 증기 부하 시스템 ( 벽재 등의 부착 가스 제거 효과 ) 실내공기청정기 - 향균필터 ( 극미세먼지 2um 이하 제어 ) 친환경 건축 및 인테리어 자재 사용 - 바닥재 : 온돌마루, 황토바닥재, 참숯바닥재, 항균타일, 참숯몰탈 등 - 페인트 : 무공해 수용성페인트, 천연페인트, 규조토, 액상 참숯페인트 - 벽지 : 참숯, 쑥, 녹차를 첨가한 천연벽지, 천연한지 - 조명기구 : 항균 탈취 조명기구 - 유리 : 향균 유리 병실침구 및 환자복 ( 환자용품 ): 향균탈취 재질
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Allergy trigger-free room 일본 사가미하라 국립병원 임상연구센터
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Allergy trigger-free room
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