Analysis of Photopatch Testing Results of 560 Cases in Shanghai District
- VernacularTitle:上海地区560例光斑贴试验结果分析
- Author:
Yue HU
1
;
Hui TANG
;
Duoqin WANG
;
Youyu SHENG
;
Qinping YANG
Author Information
1. 复旦大学附属华山医院皮肤科
- Keywords:
Photopatch testing;
Photoallergic contact dermatitis;
Allergic contact dermatitis
- From:
Chinese Journal of Clinical Medicine
2015;(5):667-669
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the roles of contact allergens and photoallergens in the treatment of several inflammatory skin diseases by retrospectively analyzing the photopatch testing results of 560 patients from the Dermatology Department during January 2014 and December 2014 .Methods:A total of 560 patients undergoting photopatch testing were collected .The positive rates of photoallergic contact dermatitis(PACD) ,as well as those of allergic contact dermatitis(ACD) among the 20 types of allergens were compared by evaluating the photopatch testing results based on criteria from the International Contact Dermatitis Research Group (ICDRG) .Results:Among the 560 patients ,there were 378 cases (65 .17% ) with PACD positive , 342 cases (58 .97% ) with ACD positive ,and 62 cases (10 .69% ) with both PACD‐ and ACD‐positive .The most common allergens among PACD‐positive patients were chlorpromazine (56 .81% ) ,thiomersal (12 .19% ) ,and formaldehyde (7 .89% ) , whereas the most common allergens among ACD‐positive patients were formaldehyde (22 .04% ) , potassium dichromate (21 .14% ) , and chlorpromazine (14 .70% ) . Furthermore , the most common allergens among PACD‐ and ACD‐ positive patients were chlorpromazine (6 .27% ) ,thiomersal (2 .33% ) ,and nickel sulfate (1 .61% ) .Conclusions:Photoallergens and contact allergens may be related to the pathogenesis of inflammatory skin diseases such as chronic actinic dermatitis ,facial dermatitis ,and eczema .
