contact dermatitis 重庆医科大学临床学院教案及讲稿

Clinical Manifestation
Mild reaction: transient erythema or erosion, Edema, inflammation, pain and vesicle
Severe cases: exudation, bulla and necrosis
(2) Cumulative Irritant Dermatitis
- Result：(-)～(+++)。
思考
题及
预习
1.What is the defenition of CD?
2.What arethe Etiology of Allergic Contact Dermatitis?
3.What is the patch test and how to perform it?
3.Diagnosis: Special contact history; Contacting areas—clear boundary; Clinical manifestations
4.patch test
- Why: The simplest and most reliable teset for CD
Most common type
Etiology
Repeat applicationof one or more irritants
A single exposure will not give any visible skin reaction
Manifestation
Erythema and increasing dryness
教案讲稿质量评价表
权重
评估内容
权重
好
1.0-0.9
较好
0.89-
一般
0.79-
差
0.59-0
100
1.编写认真、教学态度端正
10
2.教学目的明确、概念清楚、内容准确
20
3.教学注意系统性及先进性
15
4.重点突出、难点清楚
15
5.教学方法、手段适当
10
6.运用专业外语适当、准确
10
7.理论联系实际、举例恰当
Plants:
- Lacquer tree, nettle, lemon, pine-apple
Chemicals:
Metals and chemical materials: nickel salts, etc
Topical medicine: antibiotics, antiseptic, etc.
before test
-Where:The forearm flexor side or back
-How:Stick the suspicious substance under 1 layer of 4 cm2gauze or small aluminum cell, 24 to 48 hours later remove and observe the skin reactions.
10
8.知识容量密度适宜、时间分பைடு நூலகம்合理
10
意见
评价得分=（A级=100-90分；B级=89-80分；C级=79-60分；D级=59-0分）
评价者：评价时间：
Stages of allergic contact dermatitis
Induction phase(primary response): 4-7days after contact with allergen
Elicitation phase(secondary response): 2-4days to appear clinically recognized erythema, edema, and vesiculation
Hyperkeratosis
Chapping(fissures in the horny layer) to hemorrhagic fissure(crack into dermis)
2. Allergic Contact Dermatitis
Etiology:A prototype of thedelayed hypersensitivity reaction(typeⅣallergic reaction).
Contacting areas—clear boundary
Clinical manifestations
patch test
-Why:The simplest and most reliable teset for CD
-When:2w after acute stage
Stop corticosteroids 1w and antihistamines 2d
2.Theclinical manifestationsand some special sortsofContact Dermatitis.
外语要求
熟练
教学方法手段
多媒体讲述、图谱展示、临床病例分析
参考资料
1.《中国临床皮肤病学》赵辨等主编，2015年江苏科学技术出版社
2.《Anderws Diseases of skin》（第十版英文影印版）Richard.B.O等主编，科学出版社
教研室意见
教学组长：教研室主任：
年月日
教学内容
辅助手段
时间分配
Contact Dermatitis
Definition
Contact dermatitis is an exogenousdermatitiscaused by substance comingincontact withthe skin or/and mucosa.
Etiology
1. Irritant contact dermatitis
Definition: non immunological reaction.
Alkalis: cement, ammonium hydroxide
Acids: hydrochloric acid, etc
Soaps and detergents
-Result：(-)～(+++)。
Treatment
- Avoidance of the primary cause
-Topical steroidswill normally be required
-Systemic steroidsfor more severe eczematous reactions:
- When: 2w after acute stage, stop corticosteroids 1w and antihistamines 2d before test
- Where: The forearm flexor side or back
- How: Stick the suspicious substance under 1 layer of 4 cm2gauze or small aluminum cell, 24 to 48 hours later remove and observe the skin reactions.
版次
First
教
学
目
的
要
求
1.The definition ofContact Dermatitis.
2.Theetiology and pathogenesisofContact Dermatitisa.
3.Theclinical manifestationsofContact Dermatitis.
5分钟
5分钟
小结
1.Contact dermatitis is an exogenousdermatitis caused by substance coming in contact with the skin or/and mucosa.
2.The Etiology of Allergic Contact Dermatitis: A prototype of the delayed hypersensitivity reaction (typeⅣallergic reaction). Stages of allergic contact dermatitis includes Induction phase(primary response): 4-7days after contact with allergen; Elicitation phase(secondary response): 2-4days to appear clinically recognized erythema, edema, and vesiculation
重庆医科大学临床学院教案及讲稿
课程名称
皮肤性病学
年级
2013级七年制
授课专业
皮肤性病学
教师
赵恒光
职称
讲师
授课方式
大课示教
学时
1
题目章节
《Contact Dermatitis》
教材名称
《Dermatovenereology》
作者
Liu Tong
出版社
Dean’s office of Xi’an Jiaotong University November 2004
Common symptoms
Erythema
Papule
Papulovesicle
Severe cases
Extreme flare, vesicles and bulla
Necrosis
Lesion only exist at contact areas