Personal solar UV-A doses received by patients undergoing oral psoralen photochemotherapy for psoriasis

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Abstract
Patients undergoing oral psoralen photochemotherapy (PUVA) for psoriasis receive a known amount of UV-A in the treatment cubicle and an unknown amount of UV-A from sunlight. In order to measure the solar UV-A dose, 56 patients received a UV-sensitive film badge to be worn from the time they took their psoralen tablet throughout the course of the day, except during treatment. The UV-A doses measured in this way varied from < 0.2-7 J cm-2, with a median I J cm-2. Solar UV-A received by patients who have been photosensitized by 8-MOP may not be insignificant in relation to the treatment dose.

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