Analysis of Photo-Patch Testing of Chlorpromazine and Sulfanilamide
- VernacularTitle:氯丙嗪和磺胺光斑贴试验分析
- Author:
Lujuan GAO
1
;
Yue HU
;
Chunya NI
;
Yu XU
;
Li MA
;
Shuxian YAN
;
Xia DOU
Author Information
1. 复旦大学附属中山医院皮肤科
- Keywords:
Chlorpromazine;
Sulfanilamide;
Photo-patch testing;
Photo-allergy
- From:
Chinese Journal of Clinical Medicine
2015;(1):48-50
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the incidence of photo‐allergic contact dermatitis (PACD)induced by chlorpromazine and sulfanilamide with photo‐patch testing (PPT ) .Methods :Patients who underwent PPT for suspected photo dermatoses in Huashan Hospital ,Fudan University from January 2006 to December 2012 were selected .PPT results were evaluated with the criteria of International Contact Dermatitis Research Group (ICDRG) .Photoallergic positive rate was compared between two allergen groups .And the photoallergic positive rate of each allergen was compared among different genders and ages .Results:A total of 4836 patients were enrolled .PACD positive rate was 44 .3% in 3993 subjects tested with chlorpromazine and 6 .9% in 4836 subjects tested with sulfanilamide .There was a significant difference between the two groups (P<0 .0001) .In the 3993 subjects tested with chlorpromazine ,the male PACD positive rate was 43 .6% ,while the female positive rate was 44 .7% ,and there was no statistical significance(P=0 .51) .In the 4836 subjects tested with sulfanilamide ,the male PACD positive rate was 9 .3% while the female positive rate was 5 .4% ,and there was a significant difference(P<0 .0001) .The PACD positive rate increased with age in subjects tested with chlorpromazine and there was significant difference among different ages ( P< 0 . 0001) .The PACD positive rate in subjects tested with sulfanilamide showed no statistical significance among different ages (P=0 .37) .Conclusions :Chlorpromazine presents higher PACD positive rate than sulfanilamide .The PACD of chlorpromazine mainly happens in middle‐aged and elderly people .The PACD positive rate of sulfanilamide in males is higher than that in females .
