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You are here: Skin Care Research >
Author: Alster T, Hirsch R
Author affiliation: Washington Institute of Dermatologic Laser Surgery, Washington, DC 20037, USA. talster@skinlaser.com
Publication date & source: 2003.04, J Cosmet Laser Ther., 5(1):39-42.
BACKGROUND: Multiple-pass carbon dioxide (CO2) laser skin resurfacing has been a favored treatment modality for photodamaged and acne-scarred skin over the past several years. Its association with numerous side effects and complications, particularly prolonged erythema and dyspigmentation, however, has dampened the initial enthusiasm reserved for its use. By reducing the laser-associated tissue ablation depth and degree of thermal necrosis, it is possible that the incidence of these side effects can also be reduced. PURPOSE: To evaluate the clinical efficacy and side effect profile of single-pass CO2 laser skin resurfacing in a large series of patients. MATERIALS AND METHODS: A total of 52 consecutive patients (skin photo-types I-VI) with mild facial rhytides,atrophic scars, or infraorbital hyper-pigmentation underwent single-pass treatment with a high-energy, pulsed CO2 laser. Side effects to treatment were closely monitored and tabulated. Clinical improvement using a quartile grading scale was assessed independently by two masked medical evaluators at 1, 3, 6, and 12 months postoperatively. RESULTS: Significant clinical improvement was seen in all patients, with peak improvement scores noted 12 months. Greater clinical improvement was seen in patients with darker skin tones despite the near universal incidence of transient postoperative hyperpigmentation in these patients. CONCLUSIONS: Single-pass CO2 laser skin resurfacing can improve the appearance of fine rhytides, mild atrophic scars, and infraorbital hyperpigmentation in all skin types. The severity and duration of side effects and complications are reduced with this technique (compared with multiple-pass procedures)and may offer a possible solution to the problem of treating patients with darker complexions.
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