Resumen de Impact of Sunscreens on Preventing UVR-Induced Effects in Nevi: In Vivo Study Comparing Protection Using a Physical Barrier vs Sunscreen

Cristina Carrera, Joan Anton Puig Butille, Paula Aguilera, Zighereda Ogbah, Josep Palou

• Importance Sun damage is the most important environmental factor associated with malignant melanoma. To address the health threat, as well as the economic burden, primary prevention and early detection are crucial.

  Objective To test the efficacy of a topical sunscreen in the prevention of UV-induced effects in nevi.

  Design Prospective study of nevi protected by sunscreen vs a physical barrier.

  Setting and Patients Twenty-three nevi from 20 patients attending a referral hospital.

  Intervention Half of each nevus was protected by either a physical barrier or a sunscreen. Lesions were completely irradiated by a single dose of UV-B.