Predictive Model for Response Rate to Narrowband Ultraviolet B Phototherapy in Vitiligo: A Retrospective Cohort Study of 579 Patients

Vitiligo is an acquired depigmenting disorder. To date, there is no predictive model for its response rate to narrowband ultraviolet B (NBUVB) phototherapy. The aim of this study was to investigate the different types of response of patients with non-segmental vitiligo undergoing NBUVB 3 times a wee...

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Main Authors: Raúl Cabrera, Lia Hojman, Francisca Recule, Rodrigo Sepulveda, Iris Delgado
Format: Article
Language:English
Published: Medical Journals Sweden 2018-01-01
Series:Acta Dermato-Venereologica
Subjects:
Online Access: https://www.medicaljournals.se/acta/content/html/10.2340/00015555-2889
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author Raúl Cabrera
Lia Hojman
Francisca Recule
Rodrigo Sepulveda
Iris Delgado
author_facet Raúl Cabrera
Lia Hojman
Francisca Recule
Rodrigo Sepulveda
Iris Delgado
author_sort Raúl Cabrera
collection DOAJ
description Vitiligo is an acquired depigmenting disorder. To date, there is no predictive model for its response rate to narrowband ultraviolet B (NBUVB) phototherapy. The aim of this study was to investigate the different types of response of patients with non-segmental vitiligo undergoing NBUVB 3 times a week. Many patients who were previously considered non-responders were given the opportunity to continue the treatment. Long-term maintenance of treatment and follow-up of a cohort of 579 patients enabled different subtypes of response (very rapid, rapid, average, slow and “non-responders”) to be described for the first time, and a predictive model of response to be constructed based on repigmentation rate in the first 48 sessions of NBUVB. Among those patients who did not respond during the first 48 sessions, a new subgroup of patients was found, termed “very-slow” responders, who achieved a low, but significant, level of repigmentation after 96 sessions of NBUVB.
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spelling doaj.art-8fbcc71f760c4647bbc0a38a0829ef612022-12-21T19:41:38ZengMedical Journals SwedenActa Dermato-Venereologica0001-55551651-20572018-01-0198441642010.2340/00015555-28895161Predictive Model for Response Rate to Narrowband Ultraviolet B Phototherapy in Vitiligo: A Retrospective Cohort Study of 579 PatientsRaúl Cabrera0Lia HojmanFrancisca ReculeRodrigo SepulvedaIris Delgado Department of Dermatology, Clinica Alemana de Santiago, Universidad del Desarrollo, Av. Manquehue Norte 1410, Vitacura, Santiago, Chile. rcabrera@alemana.cl. Vitiligo is an acquired depigmenting disorder. To date, there is no predictive model for its response rate to narrowband ultraviolet B (NBUVB) phototherapy. The aim of this study was to investigate the different types of response of patients with non-segmental vitiligo undergoing NBUVB 3 times a week. Many patients who were previously considered non-responders were given the opportunity to continue the treatment. Long-term maintenance of treatment and follow-up of a cohort of 579 patients enabled different subtypes of response (very rapid, rapid, average, slow and “non-responders”) to be described for the first time, and a predictive model of response to be constructed based on repigmentation rate in the first 48 sessions of NBUVB. Among those patients who did not respond during the first 48 sessions, a new subgroup of patients was found, termed “very-slow” responders, who achieved a low, but significant, level of repigmentation after 96 sessions of NBUVB. https://www.medicaljournals.se/acta/content/html/10.2340/00015555-2889 vitiligophototherapyultravioletnarrowbandUVBpredictivemodel
spellingShingle Raúl Cabrera
Lia Hojman
Francisca Recule
Rodrigo Sepulveda
Iris Delgado
Predictive Model for Response Rate to Narrowband Ultraviolet B Phototherapy in Vitiligo: A Retrospective Cohort Study of 579 Patients
Acta Dermato-Venereologica
vitiligo
phototherapy
ultraviolet
narrowbandUVB
predictivemodel
title Predictive Model for Response Rate to Narrowband Ultraviolet B Phototherapy in Vitiligo: A Retrospective Cohort Study of 579 Patients
title_full Predictive Model for Response Rate to Narrowband Ultraviolet B Phototherapy in Vitiligo: A Retrospective Cohort Study of 579 Patients
title_fullStr Predictive Model for Response Rate to Narrowband Ultraviolet B Phototherapy in Vitiligo: A Retrospective Cohort Study of 579 Patients
title_full_unstemmed Predictive Model for Response Rate to Narrowband Ultraviolet B Phototherapy in Vitiligo: A Retrospective Cohort Study of 579 Patients
title_short Predictive Model for Response Rate to Narrowband Ultraviolet B Phototherapy in Vitiligo: A Retrospective Cohort Study of 579 Patients
title_sort predictive model for response rate to narrowband ultraviolet b phototherapy in vitiligo a retrospective cohort study of 579 patients
topic vitiligo
phototherapy
ultraviolet
narrowbandUVB
predictivemodel
url https://www.medicaljournals.se/acta/content/html/10.2340/00015555-2889
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AT liahojman predictivemodelforresponseratetonarrowbandultravioletbphototherapyinvitiligoaretrospectivecohortstudyof579patients
AT franciscarecule predictivemodelforresponseratetonarrowbandultravioletbphototherapyinvitiligoaretrospectivecohortstudyof579patients
AT rodrigosepulveda predictivemodelforresponseratetonarrowbandultravioletbphototherapyinvitiligoaretrospectivecohortstudyof579patients
AT irisdelgado predictivemodelforresponseratetonarrowbandultravioletbphototherapyinvitiligoaretrospectivecohortstudyof579patients