TY - CHAP M1 - Book, Section TI - Chapter 239. Lasers and Flashlamps in Dermatology A1 - Landthaler, Michael A1 - Bäumler, Wolfgang A1 - Hohenleutner, Ulrich A2 - Goldsmith, Lowell A. A2 - Katz, Stephen I. A2 - Gilchrest, Barbara A. A2 - Paller, Amy S. A2 - Leffell, David J. A2 - Wolff, Klaus Y1 - 2012 N1 - T2 - Fitzpatrick's Dermatology in General Medicine, 8e AB - |PrintLasers and Flashlamps at a GlanceLasers are the most precise and selective surgical tools in existence.Nonscarring treatment of vascular lesions, pigmented lesions, tattoos, and hair follicles relies on a process called selective photothermolysis. For each of the aforementioned broad indications, there are lesion variants that are highly responsive to laser therapy, lesions that are occasionally responsive, and lesions for which laser treatment is contraindicated.Pulse duration strongly influences safety and efficacy, and, in general, should be approximately equal to the thermal relaxation (cooling) time of specific targets in a given patient.Port-wine stains are congenital neurovascular lesions best treated in early childhood that respond well, but rarely completely, to laser treatment.Laser treatment is useful for treatment of ulcerated infant hemangiomas.Fractional resurfacing is a technique in which thousands of laser microbeams per square centimeter are used to stimulate epidermal and dermal remodeling. It is a less invasive treatment for photoaging than is ablative laser resurfacing.Use of any laser or flashlamp (intense pulsed light) for hair removal poses a severe risk of eye injury when used near the eye. Other risks include fires, inhalation of the vaporized tissue plume, electrocution, and a host of side effects such as stimulation of facial hair growth, pigmentary changes, and scarring. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/23 UR - accessmedicine.mhmedical.com/content.aspx?aid=56104350 ER -