Efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis (IGH): a randomized, controlled, evaluator-blinded study

Background: Idiopathic guttate hypomelanosis (IGH) is a common hypopigmentation affecting a large amount of older population. However, there is no standard treatment. Cryotherapy has been reported as an alternative therapy for years; nevertheless, there is no randomized controlled study to determine...

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Main Authors: Kulwadee Laosakul, Premjit Juntongjin
Format: Article
Language:English
Published: Taylor & Francis Group 2017-04-01
Series:Journal of Dermatological Treatment
Subjects:
Online Access:http://dx.doi.org/10.1080/09546634.2016.1221498
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author Kulwadee Laosakul
Premjit Juntongjin
author_facet Kulwadee Laosakul
Premjit Juntongjin
author_sort Kulwadee Laosakul
collection DOAJ
description Background: Idiopathic guttate hypomelanosis (IGH) is a common hypopigmentation affecting a large amount of older population. However, there is no standard treatment. Cryotherapy has been reported as an alternative therapy for years; nevertheless, there is no randomized controlled study to determine its efficacy. Objectives: To evaluate the efficacy and side effects of tip cryotherapy in IGH treatment. Material and methods: Total 101 lesions were included. Forty-three lesions were treated with cryotherapy and 58 lesions were assigned as control. A single session of tip cryotherapy was delivered and remained for 5 s. Colorimeter was used to measure lesional luminosity at baseline and then monthly until 4 months. Digital photographs were evaluated by two blinded dermatologists. In addition, patients’ assessments and side effects were assessed. Results: Mean luminosity scale gradually decreased from baseline. Also, the score of the treated lesions has been significantly lower than that of the control lesions since week 8 (p = .005). At the fourth month, dermatologists’ assessment revealed that 82.3% of the treated lesions comparing to only 2% of the control showed more than 75% improvement (p < .001). Burning sensation was the most common side effect. Conclusion: Tip cryotherapy appears to be an effective therapy with minimal adverse effect for IGH.
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spelling doaj.art-d0d0dcf08165451180d7b03fbdd3b92c2023-09-15T10:48:02ZengTaylor & Francis GroupJournal of Dermatological Treatment0954-66341471-17532017-04-0128327127510.1080/09546634.2016.12214981221498Efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis (IGH): a randomized, controlled, evaluator-blinded studyKulwadee Laosakul0Premjit Juntongjin1Thammasat UniversityThammasat UniversityBackground: Idiopathic guttate hypomelanosis (IGH) is a common hypopigmentation affecting a large amount of older population. However, there is no standard treatment. Cryotherapy has been reported as an alternative therapy for years; nevertheless, there is no randomized controlled study to determine its efficacy. Objectives: To evaluate the efficacy and side effects of tip cryotherapy in IGH treatment. Material and methods: Total 101 lesions were included. Forty-three lesions were treated with cryotherapy and 58 lesions were assigned as control. A single session of tip cryotherapy was delivered and remained for 5 s. Colorimeter was used to measure lesional luminosity at baseline and then monthly until 4 months. Digital photographs were evaluated by two blinded dermatologists. In addition, patients’ assessments and side effects were assessed. Results: Mean luminosity scale gradually decreased from baseline. Also, the score of the treated lesions has been significantly lower than that of the control lesions since week 8 (p = .005). At the fourth month, dermatologists’ assessment revealed that 82.3% of the treated lesions comparing to only 2% of the control showed more than 75% improvement (p < .001). Burning sensation was the most common side effect. Conclusion: Tip cryotherapy appears to be an effective therapy with minimal adverse effect for IGH.http://dx.doi.org/10.1080/09546634.2016.1221498idiopathic guttate hypomelanosistip cryotherapycryotherapyliquid nitrogencryosurgeryleukodermatherapeutic wounding
spellingShingle Kulwadee Laosakul
Premjit Juntongjin
Efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis (IGH): a randomized, controlled, evaluator-blinded study
Journal of Dermatological Treatment
idiopathic guttate hypomelanosis
tip cryotherapy
cryotherapy
liquid nitrogen
cryosurgery
leukoderma
therapeutic wounding
title Efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis (IGH): a randomized, controlled, evaluator-blinded study
title_full Efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis (IGH): a randomized, controlled, evaluator-blinded study
title_fullStr Efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis (IGH): a randomized, controlled, evaluator-blinded study
title_full_unstemmed Efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis (IGH): a randomized, controlled, evaluator-blinded study
title_short Efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis (IGH): a randomized, controlled, evaluator-blinded study
title_sort efficacy of tip cryotherapy in the treatment of idiopathic guttate hypomelanosis igh a randomized controlled evaluator blinded study
topic idiopathic guttate hypomelanosis
tip cryotherapy
cryotherapy
liquid nitrogen
cryosurgery
leukoderma
therapeutic wounding
url http://dx.doi.org/10.1080/09546634.2016.1221498
work_keys_str_mv AT kulwadeelaosakul efficacyoftipcryotherapyinthetreatmentofidiopathicguttatehypomelanosisigharandomizedcontrolledevaluatorblindedstudy
AT premjitjuntongjin efficacyoftipcryotherapyinthetreatmentofidiopathicguttatehypomelanosisigharandomizedcontrolledevaluatorblindedstudy