Narrowband ultraviolet B phototherapy is a suitable treatment option for solar urticaria - 14/06/12
, Cristina Zane, MD, MariaTeresa Rossi, MD, Raffaella Sala, MD, Marina Venturini, MD
Reprint requests: PierGiacomo Calzavara-Pinton, MD, Department of Dermatology, Spedali Civili Hospital, P.le Spedali Civili 1, 25123 Brescia, Italy.Abstract |
Background |
Narrowband (NB) ultraviolet (UV) B lamps are widely used for treatment and prophylaxis of several skin diseases.
Objective |
We sought to assess the efficacy of two protocols of NB-UVB therapy for the prophylaxis of UVB-sensitive and UVB-insensitive solar urticaria (SU).
Methods |
Subjects affected by SU underwent phototesting for assessment of the minimal erythemal dose and minimal urticarial dose. Patients without urticarial response to UVB underwent a single daily exposure every other day for 4 weeks (group A). Patients with a urticarial test response to broadband UVB or NB-UVB (group B) received 3 daily exposures (on working days) for the first week. Afterward, they were treated as the patients of group A for 3 weeks. Follow-up visits took place after 1 and 3 months.
Results |
A total of 39 patients completed the study. In groups A (29 patients) and B (10 patients), the median total number of exposures was 12 (interquartile range [IQR]: 12; 15) and 25.5 (IQR 24; 27), respectively. The median total NB-UVB dose was 10.3 J/cm2 (IQR 9.9; 11) for group A and 9.1 J/cm2 (IQR 8.5; 10.6) for group B. At follow-up visits, patients reported good tolerance to the sun.
Limitations |
A direct comparison of NB-UVB with UVA or psoralen plus UVA for the photoprophylaxis of SU is still lacking.
Conclusion |
NB-UVB phototherapy was well-tolerated and effectively prevented SU relapses.
Le texte complet de cet article est disponible en PDF.Key words : clinical trial, minimal erythemal dose, minimal urticarial dose, narrowband ultraviolet B phototherapy, phototest, solar urticaria
Abbreviations used : BB, IQR, MED, MUD, NB, PUVA, SU, UV
Plan
| Funding sources: None. |
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| Conflicts of interest: None declared. |
Vol 67 - N° 1
P. e5-e9 - juillet 2012 Retour au numéro
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