Results of photopatch testing in Rotterdam during a 10-year period

The British Journal of Dermatology
R S L A Bakkum, F Heule

Abstract

Photoallergic contact dermatitis is of importance in a proportion of photodermatoses and can be evaluated through photopatch testing. To conduct a retrospective evaluation of photopatch tests performed in patients with suspected photodermatoses at the clinic at the University Hospital Rotterdam during a 10-year period. During the first 5(1/2) years 44 patients were tested with a standard set of 14 allergens, and during the next 4(1/2) years 55 patients were tested with a standard set of 23 allergens. Photocontact reactions were found in 9% and 27% of patients in the two periods, respectively. In the second period, positive reactions were mostly produced by sunscreens. The difference in the percentage of positive photopatch tests was probably caused by the difference in composition of the standard set of allergens (more sunscreens in the second period), this being the only alteration in the test procedure. The standard set of photoallergens has to be updated periodically. Standardization of the test procedure is needed to compare the test results of different institutions.

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Citations

Feb 19, 2010·Journal of the American Academy of Dermatology·Frank C VictorNicholas A Soter
Jun 19, 2015·Contact Dermatitis·Martha C Valbuena Mesa, Elsa V Hoyos Jiménez
Mar 15, 2016·Toxicology in Vitro : an International Journal Published in Association with BIBRA·Satomi OnoueHirokazu Kouzuki
Oct 16, 2004·Journal of the European Academy of Dermatology and Venereology : JEADV·D P BruynzeelUNKNOWN European Taskforce for Photopatch Testing
Mar 9, 2005·Journal of the European Academy of Dermatology and Venereology : JEADV·H Moseley
Aug 16, 2003·Dermatologic Therapy·Sharam Samson Yashar, Henry W Lim
May 18, 2004·Photodermatology, Photoimmunology & Photomedicine·An Goossens
Jul 28, 2006·Photodermatology, Photoimmunology & Photomedicine·Edna RodríguezLuisa Porras de Quintana
Feb 14, 2007·Contact Dermatitis·Vinod K SharmaArika Bansal
Sep 2, 2008·Contact Dermatitis·Paolo Daniele PigattoColombina Vincenzi
Sep 13, 2006·The British Journal of Dermatology·A M BrydenJ Ferguson
Jan 8, 2011·Contact Dermatitis·Mohammad K Ghazavi, Graham A Johnston
Nov 11, 2014·Dermatitis : Contact, Atopic, Occupational, Drug·Ashley R HeurungErin M Warshaw
Mar 12, 2013·Dermatitis : Contact, Atopic, Occupational, Drug·Jay E WolvertonDavid E Cohen
Aug 21, 2020·Photodermatology, Photoimmunology & Photomedicine·Chayada ChaiyabutrWaranya Boonchai
Jun 6, 2009·Contact Dermatitis·José Carlos CardosoAmérico Figueiredo
Jan 16, 2021·Dermatitis : Contact, Atopic, Occupational, Drug·Yena KimHarriet Cheng
Oct 28, 2009·Chemical Research in Toxicology·Isabella KarlssonAnna Börje

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