Measurement of the response to treatment in psoriasis

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Abstract
Informal subjective clinician assessments of the response of patients to one or another treatment are often over optimistic. There are many ways in which more realistic evaluations can be made, and this article reviews some of these. It is concluded that no single measurement is ideal. An objective parameter, such as plaque thickness as measured by ultrasound, backed up with a functional assessment, as with the Psoriasis Disability Index, constitutes the best compromise.