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 BRIEF REPORT
Year : 2015  |  Volume : 81  |  Issue : 6  |  Page : 600--605

Targeted ultraviolet B phototherapy in vitiligo: A comparison between once-weekly and twice-weekly treatment regimens


CUTIS Skin Institute, Srinagar, Jammu and Kashmir, India

Correspondence Address:
Dr. Imran Majid
CUTIS Skin Institute, Karan Nagar Chowk, Srinagar - 190 010, Jammu and Kashmir
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0378-6323.168325

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Background: Targeted ultraviolet B (T-UVB) phototherapy in vitiligo is usually administered twice or thrice a week on non-consecutive days. It is difficult for many patients to adhere to this regimen, forcing them to discontinue treatment. Aim: The study aimed to compare the efficacy of twice-weekly and once-weekly targeted ultraviolet B phototherapy regimens in vitiligo. Methods: Sixty patients with non-segmental vitiligo on the face, neck or trunk were divided into two groups of 30 patients each. The patients in group A received targeted ultraviolet B twice weekly, while those in group B received targeted ultraviolet B once weekly. Repigmentation was monitored and graded as excellent (≥75% repigmentation), good (50−74% repigmentation) and poor (<50% repigmentation). The extent of repigmentation at each body site (primary outcome measure), the number of doses required for initiation of pigmentation, and the cumulative dose of targeted ultraviolet B administered was calculated and compared between both groups. Results: A total of 90 lesions (48 in the twice weeklygroup and 42 in the once weekly group) were treated on the face, neck and trunk. Excellent results were obtained in 62.5% (30/48) of lesions treated twice weekly, and 64.3% (27/42) in lesions treated once weekly. The mean number of doses required for initiation of pigmentation was 4.69 in the twice weekly group, and 4.35 in the once weekly group. The patients in the twice weekly group received a mean cumulative dose of 8.26 J/cm 2, while the once weekly group received 7.69 J/cm 2. No statistically significant differences were observed between the two groups with respect to the outcome, with respect to the total repigmentation, the number of doses till onset of pigmentation, as well as the cumulative dose of targeted UVB. Conclusion: Once-weekly targeted ultraviolet B phototherapy appears to be as efficacious as the twice-weekly regimen in vitiligo.






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