{"title":"Long-term Durability of Narrowband Ultraviolet B-induced Repigmentation in Non-segmental Vitiligo: A Retrospective Study.","authors":"Riad Kassem, Ilya Vaynshteyn, Aviv Barzilai, Assaf Handelsman, Alon Scope, Moshe Schaffer, Sharon Baum, Felix Pavlotsky","doi":"10.2340/actadv.v105.43690","DOIUrl":null,"url":null,"abstract":"<p><p>Narrowband ultraviolet B (NB-UVB) phototherapy is a well-established vitiligo treatment. However, limited data exist on the long-term effects of NB-UVB-induced repigmentation. This study evaluated the long-term durability of repigmentation achieved through NB-UVB phototherapy for up to 1 year in 176 patients with non-segmental vitiligo. Demographic and clinical variables, including age, gender, skin phototype, body site involvement, treatment duration, cumulative radiation dose, and clinically significant repigmentation response, were collected. Clinically significant repigmentation was defined as ≥ 50% repigmentation of vitiligo-affected areas, while a durable response was repigmentation lasting ≥ 6 months post-treatment. Of the 176 patients, 80 (45%) achieved clinically significant repigmentation, with the highest success rates observed in the face and neck region (53%). Among responders, 76 (95%) patients maintained their response for ≥ 6 months post-treatment discontinuation, and 47 (59%) sustained repigmentation for > 72 months. Additionally, ≥ 50% repigmentation, longer treatment duration (> 18 months), and higher cumulative radiation dose (> 356 J/cm²) were associated with a durable repigmentation response. NB-UVB phototherapy provides lasting repigmentation in non-segmental vitiligo, with many patients maintaining results for > 6 years. Clinically significant response post-NB-UVB phototherapy, prolonged treatment duration, and cumulative radiation dose are key factors associated with long-term repigmentation.</p>","PeriodicalId":6944,"journal":{"name":"Acta dermato-venereologica","volume":"105 ","pages":"adv43690"},"PeriodicalIF":3.7000,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12476050/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta dermato-venereologica","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.2340/actadv.v105.43690","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"DERMATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Narrowband ultraviolet B (NB-UVB) phototherapy is a well-established vitiligo treatment. However, limited data exist on the long-term effects of NB-UVB-induced repigmentation. This study evaluated the long-term durability of repigmentation achieved through NB-UVB phototherapy for up to 1 year in 176 patients with non-segmental vitiligo. Demographic and clinical variables, including age, gender, skin phototype, body site involvement, treatment duration, cumulative radiation dose, and clinically significant repigmentation response, were collected. Clinically significant repigmentation was defined as ≥ 50% repigmentation of vitiligo-affected areas, while a durable response was repigmentation lasting ≥ 6 months post-treatment. Of the 176 patients, 80 (45%) achieved clinically significant repigmentation, with the highest success rates observed in the face and neck region (53%). Among responders, 76 (95%) patients maintained their response for ≥ 6 months post-treatment discontinuation, and 47 (59%) sustained repigmentation for > 72 months. Additionally, ≥ 50% repigmentation, longer treatment duration (> 18 months), and higher cumulative radiation dose (> 356 J/cm²) were associated with a durable repigmentation response. NB-UVB phototherapy provides lasting repigmentation in non-segmental vitiligo, with many patients maintaining results for > 6 years. Clinically significant response post-NB-UVB phototherapy, prolonged treatment duration, and cumulative radiation dose are key factors associated with long-term repigmentation.
期刊介绍:
Acta Dermato-Venereologica publishes high-quality manuscripts in English in the field of Dermatology and Venereology, dealing with new observations on basic dermatological and venereological research, as well as clinical investigations. Each volume also features a number of Review articles in special areas, as well as short Letters to the Editor to stimulate debate and to disseminate important clinical observations. Acta Dermato-Venereologica has rapid publication times and is amply illustrated with a large number of colour photographs.