ABSTRACT
Intense pulsed light [IPL] has long been used for skin rejuvenation. Photo rejuvenation with red light [with or without photo sensitizer] is a newer noninvasive way for this purpose; but, until now few comparative studies between these modalities have been performed. The aim of this study was comparing efficacy, adverse effects, and compliance of intense pulsed light rejuvenation and red light photo rejuvenation in a homogeneous group of women. In this clinical trial, ten female volunteers with Fitzpatrick skin type I, II, and III were enrolled. Patients underwent 6 sessions of IPL rejuvenation at 4-week intervals on one side, and 30 photo rejuvenation session [2 times a week] with red light on the other side of their face. Improvement of the skin texture and reduction in the wrinkles were determined in two ways. Firstly, by comparing the photographs, and secondly, by measuring the skin elasticity with Reviscometer MPA 9 system, before and after the procedure. Both treatments were associated with improvement in the skin texture and wrinkle depth, but red light was more effective on the nasolabial fold and IPL was more effective on the fine wrinkles. Red light photo rejuvenation without the use of photosensitizer can be a new, effective and safe procedure for rejuvenation
ABSTRACT
A hypertrophic scar is defined as an excess healing response that is a dilemma for physicians. Several therapies are available: intralesional corticosteroids, topical treatments, cryotherapy, surgery, radiation, silicone gel dressing and laser therapy. Pulsed-dye, Nd-Yag and CO2 lasers have been used for treatment of keloids and hypertrophic scars but recurrence is common. Recently Low-Level Laser Therapy [aluminum-gallium-arsenide [AlGaAs] Diode 980nm, red light [Mustung, KLO4, Helium Neon 630 nm] and blue light LED lasers have been used for closure of wounds. The aim of this report is to show the effectiveness of these lasers for the treatment of a hypertrophic scar on the forearm of a 40 year-old woman due to burning by gas explosion