TY - CHAP M1 - Book, Section TI - Dermal Color Improvement in Ethnic Skin: Vascular Lasers and Lights A1 - Kono, Taro A1 - Chan, Henry Hin-Lee A2 - Alam, Murad A2 - Bhatia, Ashish C. A2 - Kundu, Roopal V. A2 - Yoo, Simon S. A2 - Chan, Henry Hin-Lee PY - 2009 T2 - Cosmetic Dermatology for Skin of Color AB - Laser treatment of vascular lesions was first developed in 1960s, and the risks of scarring and texture changes were very common in the early days. In 1983, the concept of selective photothermolysis revolutionized the use of laser for the treatment of vascular lesions. Since then, pulsed dye laser (PDL) has become the gold standard in the treatment of port wine stains (PWSs). However, for technical reasons in the past, no PDL had been developed with a pulse duration longer than 1 millisecond (ms) until the late 1990s. However, complications, especially dyspigmentation such as hypopigmentation and hyperpigmentation, were common, especially in dark-skinned patients. To minimize complications caused by higher fluence in dark-skinned patients, epidermal protection by skin cooling was developed. Newer-generation PDLs provide extended pulse durations, adequate skin cooling, and higher power, leading to enhanced clinical efficacy and lower risk of complication, especially in dark-skinned patients. SN - PB - McGraw Hill Medical CY - New York, NY Y2 - 2024/03/29 UR - dermatology.mhmedical.com/content.aspx?aid=1175118497 ER -