Abstract
Port wine stains(PWS)are a congenital progressive dilation and malformation of dermal capillaries, usually occur on sun-exposed sites such as the head and face, and seriously affects the patient's quality of life. Pulseddye laser, as the standard treatment of PWS, is still unsatisfactory in terms of total clearance. Based on the interaction between lasers, photosensitizers and oxygen, photodynamic therapy(PDT)is capable of destroying malformed vascular tissues through photodynamic effects, and has become a novel safe and effective treatment for PWS with encouraging prospects. Photosensitizers and light sources have great influence on the efficacy of and adverse reactions to PDT in the treatment of PWS, and further study is needed to elucidate the underlying mechanisms. Key words: Port-wine stain; Face; Photochemotherapy; Therapeutic uses; Photosensitizing agents; Laser therapy
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