{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T20:22:31Z","timestamp":1772223751676,"version":"3.50.1"},"reference-count":20,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,3,30]],"date-time":"2012-03-30T00:00:00Z","timestamp":1333065600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2012,8]]},"abstract":"<jats:p><jats:bold>Background.<\/jats:bold> Exposure to palladium (Pd) may lead to clinical allergic reactions. With frequent nickel (Ni) exposure and cross\u2010reactivity between Ni and Pd at the T cell recognition level, positive Pd reactions on patch testing are surprisingly uncommon. PdCl<jats:sub>2<\/jats:sub> is often used for epicutaneous patch testing.<\/jats:p><jats:p><jats:bold>Objectives.<\/jats:bold> To compare the sensitivity and specificity of sodium tetrachloropalladate (Na<jats:sub>2<\/jats:sub>PdCl<jats:sub>4<\/jats:sub>) and PdCl<jats:sub>2<\/jats:sub> for Pd patch testing in metal\u2010allergic patients and non\u2010allergic controls.<\/jats:p><jats:p><jats:bold>Methods.<\/jats:bold> Twenty\u2010six metal\u2010allergic patients and 26 non\u2010allergic controls were selected on the basis of detailed medical histories. Patch test results were used to determine the diagnostic performance of the two Pd salts as compared with NiSO<jats:sub>4<\/jats:sub>.<\/jats:p><jats:p><jats:bold>Results.<\/jats:bold> With three outliers in both groups, the sensitivity\/specificity were calculated to be 42%\/96% for PdCl<jats:sub>2<\/jats:sub>, 65%\/92% for Na<jats:sub>2<\/jats:sub>PdCl<jats:sub>4<\/jats:sub>, and 77%\/92% for NiSO<jats:sub>4<\/jats:sub>. Furthermore, of all (n = 19) Na<jats:sub>2<\/jats:sub>PdCl<jats:sub>4<\/jats:sub> reactors, 17 (89%) also showed positive reactions to NiSO<jats:sub>4<\/jats:sub>. Conversely, of all (n = 22) NiSO<jats:sub>4<\/jats:sub> reactors, 17 (77%) showed concomitant positive reactions to Na<jats:sub>2<\/jats:sub>PdCl<jats:sub>4<\/jats:sub>.<\/jats:p><jats:p><jats:bold>Conclusions<\/jats:bold>. Positive test reactions to Na<jats:sub>2<\/jats:sub>PdCl<jats:sub>4<\/jats:sub> are confirmed by large\u2010scale concordant reactions to PdCl<jats:sub>2<\/jats:sub> and NiSO<jats:sub>4<\/jats:sub>. Although statistical significance was not reached, the increased sensitivity has important clinical relevance, as false\u2010positive results are rare. Incorporation of Na<jats:sub>2<\/jats:sub>PdCl<jats:sub>4<\/jats:sub> into standard and\/or dental screening patch test series is suggested.<\/jats:p>","DOI":"10.1111\/j.1600-0536.2012.02061.x","type":"journal-article","created":{"date-parts":[[2012,4,3]],"date-time":"2012-04-03T12:52:53Z","timestamp":1333457573000},"page":"94-100","source":"Crossref","is-referenced-by-count":23,"title":["Sodium tetrachloropalladate for diagnosing palladium sensitization"],"prefix":"10.1111","volume":"67","author":[{"given":"Joris","family":"Muris","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cornelis J.","family":"Kleverlaan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas","family":"Rustemeyer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mary E.","family":"von Blomberg","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ingrid M. 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