[From evidence to expertise: concordance in the topical management of psoriasis]

Vulgar psoriasis is an inflammatory cutaneous-systemic disease, chronic and intermittent. Its etiology is not defined, and it has a higher risk of comorbidities which affect the patients' quality of life. The objectives of this trial were establishing the concordance between Guía de Práctica Clínica (GPC) of the plaque psoriasis pharmacological treatment and the clinical practice of a group of Mexican dermatologists, experts in the psoriasis topical treatment; as well as weighing up the interest and knowledge of quality of life and adherence to treatment. A Delphi questionnaire was applied to 30 experts to explore their therapeutic behavior and attitudes toward the assessment of quality of life and treatment adherence. A meeting was held with a subgroup of 10 dermatologists to analyze the results. A second questionnaire was responded to distinguish the decisions taken for topical treatment in institutional and private practice, as well as other items unexplored in the first questionnaire. After analyzing the questionnaires results, it was clear that the data published in the Guía de Práctica Clínica and the prescriptive attitude of the experts are consistent with respect to the topical treatment for plaque psoriasis. There is also agreement on the attitude about drug prescriptions between the physicians in the private and institutional medical care, although in the private practice it is more common to use vitamin D analogues and corticosteroids and the salicylic acid replaces corticosteroids in the institutions.