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Recovery from tanning induced by narrow-band UVB phototherapy in brown-skinned individuals with psoriasis: twelve-month follow-up.
J Dermatol Sci. 2010 Jan; 57(1):12-8.JD

Abstract

BACKGROUND

Pigmentation induced by narrow-band UVB (NBUVB) phototherapy can cause complaints by psoriasis patients, especially those with brown skin. Nevertheless, the recovery process from tanning after the completion of NBUVB treatment is not known.

OBJECTIVE

The purpose of this study was to evaluate the extent of tanning recovery after the end of NBUVB treatment and determine the time required to recover from the fully tanned state.

METHOD

Sixteen psoriasis patients with brown skin were observed. The skin color changes on the lower back were measured before beginning phototherapy, upon completion of NBUVB treatment, and subsequently every month for the first one-half year, then bimonthly for the second one-half year, using two different reflectance spectrophotometers. The results are presented as the erythema index (EI) and melanin index (MI), L*a*b* values as recommended by the Commission Internationale de l'Eclairge, and the individual typology angle (ITA degrees).

RESULTS

The mean L* value reached 64.4 by the 10th month after the end of NBUVB treatment, with no significant difference from the value before beginning phototherapy. The mean ITA degrees approximated the initial angle at the 8th month after completing NBUVB treatment with no significant difference, thus representing recovery to the original intermediate skin color. The MI recovered to the initial values earlier than the L* value and ITA degrees. The EI appeared the earliest recovery value.

CONCLUSION

Understanding the recovery process from tanning induced by NBUVB treatment will improve the patient's compliance for treatment and bring higher efficacy and safety to the retrial of phototherapy in brown-skinned individuals with psoriasis.

Authors+Show Affiliations

Department of Dermatology, Seoul National University College of Medicine, 28-Yongon-dong, Chongno-gu, Seoul 110-744, Republic of Korea.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19914043

Citation

Kwon, In Ho, et al. "Recovery From Tanning Induced By Narrow-band UVB Phototherapy in Brown-skinned Individuals With Psoriasis: Twelve-month Follow-up." Journal of Dermatological Science, vol. 57, no. 1, 2010, pp. 12-8.
Kwon IH, Woo SM, Choi JW, et al. Recovery from tanning induced by narrow-band UVB phototherapy in brown-skinned individuals with psoriasis: twelve-month follow-up. J Dermatol Sci. 2010;57(1):12-8.
Kwon, I. H., Woo, S. M., Choi, J. W., Kwon, H. H., & Youn, J. I. (2010). Recovery from tanning induced by narrow-band UVB phototherapy in brown-skinned individuals with psoriasis: twelve-month follow-up. Journal of Dermatological Science, 57(1), 12-8. https://doi.org/10.1016/j.jdermsci.2009.10.004
Kwon IH, et al. Recovery From Tanning Induced By Narrow-band UVB Phototherapy in Brown-skinned Individuals With Psoriasis: Twelve-month Follow-up. J Dermatol Sci. 2010;57(1):12-8. PubMed PMID: 19914043.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Recovery from tanning induced by narrow-band UVB phototherapy in brown-skinned individuals with psoriasis: twelve-month follow-up. AU - Kwon,In Ho, AU - Woo,Seung Man, AU - Choi,Jung Won, AU - Kwon,Hyuck Hoon, AU - Youn,Jai Il, Y1 - 2009/11/13/ PY - 2009/03/10/received PY - 2009/08/09/revised PY - 2009/10/03/accepted PY - 2009/11/17/entrez PY - 2009/11/17/pubmed PY - 2010/5/26/medline SP - 12 EP - 8 JF - Journal of dermatological science JO - J Dermatol Sci VL - 57 IS - 1 N2 - BACKGROUND: Pigmentation induced by narrow-band UVB (NBUVB) phototherapy can cause complaints by psoriasis patients, especially those with brown skin. Nevertheless, the recovery process from tanning after the completion of NBUVB treatment is not known. OBJECTIVE: The purpose of this study was to evaluate the extent of tanning recovery after the end of NBUVB treatment and determine the time required to recover from the fully tanned state. METHOD: Sixteen psoriasis patients with brown skin were observed. The skin color changes on the lower back were measured before beginning phototherapy, upon completion of NBUVB treatment, and subsequently every month for the first one-half year, then bimonthly for the second one-half year, using two different reflectance spectrophotometers. The results are presented as the erythema index (EI) and melanin index (MI), L*a*b* values as recommended by the Commission Internationale de l'Eclairge, and the individual typology angle (ITA degrees). RESULTS: The mean L* value reached 64.4 by the 10th month after the end of NBUVB treatment, with no significant difference from the value before beginning phototherapy. The mean ITA degrees approximated the initial angle at the 8th month after completing NBUVB treatment with no significant difference, thus representing recovery to the original intermediate skin color. The MI recovered to the initial values earlier than the L* value and ITA degrees. The EI appeared the earliest recovery value. CONCLUSION: Understanding the recovery process from tanning induced by NBUVB treatment will improve the patient's compliance for treatment and bring higher efficacy and safety to the retrial of phototherapy in brown-skinned individuals with psoriasis. SN - 1873-569X UR - https://www.unboundmedicine.com/medline/citation/19914043/Recovery_from_tanning_induced_by_narrow_band_UVB_phototherapy_in_brown_skinned_individuals_with_psoriasis:_twelve_month_follow_up_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0923-1811(09)00297-7 DB - PRIME DP - Unbound Medicine ER -