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If you do not have a VSI account, you can quickly create one here!J Am Acad Dermatol. 2003 Sep;49(3):473-6. Links
Narrowband ultraviolet B radiation therapy for recalcitrant vitiligo in Asians.Natta R, Somsak T, Wisuttida T, Laor L.
Division of Dermatology, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. ranrj@mahidol.ac.thBACKGROUND: Narrowband ultraviolet B (NBUVB) has recently been reported to be effective therapy for vitiligo. However, reports on its efficacy in recalcitrant vitiligo are lacking. OBJECTIVE: Our objective was to assess the efficacy of NBUVB in patients with vitiligo who did not respond to either topical therapy or oral psoralen plus ultraviolet A (PUVA). METHOD: This was a retrospective analysis of patients with vitiligo who were treated with NBUVB from February 1998 to January 2001. They received NBUVB treatment 2 times per week, with an initial dose of 100 mJ/cm(2). The dose was increased by 10% to 20% per treatment for 20 treatments. The dose was then increased by 2% to 5% per treatment until 50% repigmentation was observed or persistent erythema developed. The treatment was continued until maximum repigmentation was achieved. The treatment was terminated if the patient showed less than 25% improvement after 40 to 50 exposures. RESULTS: There were 60 patients: 22 men and 38 women, aged 11 to 61 years. The mean duration of vitiligo was 8.2 +/- 7.1 years. There were 53 cases of generalized and 7 cases of localized vitiligo. The lesions covered from less than 5% to 50% of body surface. Twenty-five patients were skin type III, 33 patients were skin type IV, and 2 patients were skin type V. Every case had been previously treated with topical steroid with or without topical psoralen with solar light exposure. Thirty-six patients (60%) had been treated with oral PUVA before NBUVB therapy. After NBUVB treatment, 25 of 60 patients (42%) achieved more than 50% repigmentation on face, trunk, arms, and legs. However, hand and foot lesions showed less than 25% repigmentation in all cases. There was no significant difference between the responders and nonresponders in age, sex, duration of diseases, and skin type. The response rate of patients who had not been previously treated with PUVA was significantly higher than that of patients who had been previously treated with PUVA (67% vs 36%, P =.003). CONCLUSION: This retrospective, open study demonstrated that NBUVB therapy was effective in 42% of Asian patients with recalcitrant vitiligo without serious side effect. The only clinical parameter that could differentiate nonresponders from responders was previous exposure to PUVA.
PMID: 12963911 [PubMed – indexed for MEDLINE]
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