RT Journal Article SR Electronic T1 The importance of patient selection for photochemotherapy in psoriasis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1016 OP 1018 VO 124 IS 8 A1 J. P. DesGroseilliers A1 S. M. Reilly A1 A. E. Cullen YR 1981 UL http://www.cmaj.ca/content/124/8/1016.abstract AB Twenty-four patients with psoriasis were treated with orally administered 8-methoxypsoralen followed by exposure to high-intensity long-wavelength ultraviolet radiation (PUVA) at a psoriasis day care centre. Among the 20 with plaque type psoriasis the condition cleared in 13 (65%), after a mean of 20.7 treatment sessions, and improved but failed to clear in 4 (20%); the treatment failed in the other 3 (15%). The other four patients had erythrodermic, pustular or inflammatory psoriasis, and all failed to respond to PUVA therapy. Factors to be considered in patient selection for this form of therapy are the type of psoriasis, the patient's skin type and th proportion of the body surface area involved.