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Risk for Subsequent Facial Keratinocyte Carcinoma Lower With Laser Treatment

Nonablative fractional laser-treated patients had lower rate of subsequent facial keratinocyte carcinoma development

By Elana Gotkine (HealthDay News) | January 24, 2023

For patients with a history of facial keratinocyte carcinoma (KC), nonablative fractional laser (NAFL) treatment is associated with a reduced risk for subsequent development of facial KC, according to a study published online Dec. 6 in Dermatologic Surgery .

Travis A. Benson, M.D., from Harvard Medical School in Boston, and colleagues conducted a retrospective cohort study involving patients with a history of facial KC treated between 2005 and 2021 to examine whether NAFL treatment is associated with a decrease in subsequent facial KC development. The study included 43 NAFL-treated patients with a history of facial KC and 52 matched controls.

The researchers found that the rate of subsequent facial KC development was 20.9 and 40.4 percent in NAFL-treated patients and controls. Compared with NAFL-treated patients, controls developed new facial KC significantly earlier. Controls were more likely to develop new facial KC than NAFL-treated patients when controlling for age, gender, and skin type (hazard ratio, 2.65).

"These findings suggest that NAFL treatment may have an important role in protecting against subsequent keratinocyte carcinomas," a coauthor said in a statement. "While the mechanism of NAFL's protective effect is not completely understood, it is suspected that NAFL treatment reduces the overall burden of photo damaged keratinocytes and may promote a wound healing response, which gives healthy skin cells a selective advantage."

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