In pediatric psoriasis, which ultraviolet therapy option is preferred due to safety and efficacy?

In pediatric psoriasis, which ultraviolet therapy option is preferred due to safety and efficacy?

• A. UVA with psoralen
• B. Broadband UVB
• C. Narrowband UVB
• D. UVA1

Answer: (C)

In pediatric psoriasis, the goal of phototherapy is to achieve good plaque clearance with the lowest long-term risk to a child’s developing skin. Narrowband UVB, which uses a focused wavelength around 311–313 nm, provides strong efficacy for plaque psoriasis while offering a superior safety profile compared with other options. It is more efficient than broadband UVB, requiring fewer sessions and delivering a gentler dose-response with fewer incidents of painful or distracting redness. Importantly, it does not require a photosensitizing drug, so there are no systemic side effects or added cancer risks tied to psoralen exposure. PUVA (psoralen plus UVA) is potent but carries greater long-term risks, including skin cancer and cataracts, which are especially concerning in children. UVA1 delivers deeper penetration but is less consistently effective for typical psoriatic plaques and has limited pediatric data. Because narrowband UVB balances good efficacy with a favorable safety profile and practicality for children, it is the preferred phototherapy option.

In pediatric psoriasis, the goal of phototherapy is to achieve good plaque clearance with the lowest long-term risk to a child’s developing skin. Narrowband UVB, which uses a focused wavelength around 311–313 nm, provides strong efficacy for plaque psoriasis while offering a superior safety profile compared with other options. It is more efficient than broadband UVB, requiring fewer sessions and delivering a gentler dose-response with fewer incidents of painful or distracting redness. Importantly, it does not require a photosensitizing drug, so there are no systemic side effects or added cancer risks tied to psoralen exposure. PUVA (psoralen plus UVA) is potent but carries greater long-term risks, including skin cancer and cataracts, which are especially concerning in children. UVA1 delivers deeper penetration but is less consistently effective for typical psoriatic plaques and has limited pediatric data. Because narrowband UVB balances good efficacy with a favorable safety profile and practicality for children, it is the preferred phototherapy option.