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Year : 2002  |  Volume : 68  |  Issue : 2  |  Page : 63--64

Minimal erythema dose (Med) to narrow band ultraviolet - B (NB-UVB) broad band ultraviolet-B (BB-UVB) - A pilot study

Department of Skin & STD, PSG Hospitals, Peelamedu, Coimbatore, Tamil Nadu - 641 004, India

Correspondence Address:
C R Srinivas
Department of Skin & STD, PSG Hospitals, Peelamedu, Coimbatore, Tamil Nadu - 641 004
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Source of Support: None, Conflict of Interest: None

PMID: 17656878

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Phototherapy is an effective treatment for various dermatological conditions. Ultraviolet B (290 - 320nm) is reported effective in the treatment of psoriasis. Narrow band UVB (NB-UVB) is also reported effective in the treatment of psoriasis and vitiligo. To standardize the dosage schedule for NB-UVB we undertook this study to determine the minimal erythema dose (MED) on type IV and Indian skin. On six volunteers tested the MED for NB-UVB ranged between 150mj and 400mj and for BB-UVB ranged between 10mj and 35mj. The mean MED for NB was 300mj and BB was 21 mj, the mean ratio of NB to BB was 1:15. We propose that narrow band UVB is a practical alternative to the conventional broad band UVB and has the advantage over photochemotherapy (PUVA) of being effective without prior administration of psoralen.

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Online since 15th March '04
Published by Wolters Kluwer - Medknow