alexa ARA and EADV Criteria for Classification of Systemic Lupus Erythematosus in Patients with Cutaneous Lupus Erythematosus
Genetics

Genetics

Journal of Clinical & Medical Genomics

Author(s): Parodi A, Rebora A

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OBJECTIVE: To verify (1) how many patients with cutaneous lupus erythematosus (CLE) fulfill 4 or more American Rheumatism Association (ARA) and European Academy of Dermatology and Venereology (EADV) criteria for classification of systemic lupus erythematosus (SLE); (2) which criteria are mostly fulfilled; (3) the severity of the disease in patients fulfilling criteria; (4) how many patients with systemic involvement fail to fulfill 4 ARA and EADV criteria. METHODS: We studied 207 patients with chronic and subacute CLE, classified according to ARA and EADV criteria. RESULTS: Twenty-four patients with localized discoid (L-DLE; 21.8%), 22 with disseminated discoid (D-DLE; 30.5%) and 7 with subacute CLE (SCLE; 28%) had 4 or more ARA criteria. With EADV criteria, these figures fell to 7 (6.4%), 7 (9.7%) and 6 (24%), respectively. Only 3 L-DLE (2.7%), 5 D-DLE (6.9%) and 3 SCLE cases (12%) defined as SLE by ARA criteria and 1, 3 and 3, respectively, by EADV criteria had a renal or neurological disorder, hemolytic anemia and/or thrombocytopenia, vasculitis or serositis. ARA criteria did not classify 7 patients with a similar visceral involvement, while EADV criteria failed in 11 patients. CONCLUSION: In our patients, ARA criteria showed a sensitivity of 88%, a specificity of 79%, a positive predictive value of 56% and a negative predictive value of 96%. EADV criteria showed a sensitivity of only 64%, but a specificity of 93%, a positive predictive value of 61% and a negative predictive value of 94%. ARA criteria should not be used in CLE patients as they are too sensitive, poorly specific and altogether misleading. EADV criteria are more specific, but less sensitive.

This article was published in Dermatology. and referenced in Journal of Clinical & Medical Genomics

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