Periorbital Post-Inflammatory Hyperpigmentation after Fractionated CO<sub>2</sub>Laser Resurfacing in Asians

• 作者: Ingerlisa Mattoch Randal Tanh Hoang Pham Sterling S. Baker
• 来源期刊: 现代整形外科(英文)
• 学科: 医学
• 关键词: LASER CO2 LASER CO2 LASER RESURFACING Fractionated CO2 LASER RESURFACING PIH POST INFLAMMATORY HYPERPIGMENTATION Asian Face Eyelid Pigment Wrinkles Rhytid
• 年，卷（期）: xdzxwkyw,（2）
• 页码范围: 9-13
• 页数: 5页
• 分类号: R73

摘要

Background: Most data on laser resurfacing have come from studies of people with Fitzpatrick skin types 1 - 3;however, the world’s population is comprised mostly of Fitzpatrick skin types 4 - 6, which are more susceptible to post-inflammatory hyperpigmentation (PIH). Objective: For the purpose of expanding the expertise of plastic surgeons treating patients with darker skin types, this study examined the incidence of PIH in Asians who underwent laser resurfacing, including a histologic arm on fractional ablative resurfacing. Methods & Materials: The clinical study included six subjects of Vietnamese origin who underwent single-depth fractionated CO2 laser resurfacing. The histologic study involved a seventh subject. The MiXto SX®laser with a new scanning handpiece was used, along with magnifying loupes to assess ablative depth after each of three laser passes performed. Photographs were taken at various postoperative intervals. Results: All six clinical subjects showed cosmetic improvement in skin texture and tone with no post-inflammatory hyperpigmentation. In the histologic study, H&E stained sections revealed uniform diathermy. Conclusion: It is possible to significantly reduce PIH in darker skinned subjects through use of a new scanning handpiece and a technique using loupes to assess the depth of ablative resurfacing. The histologic study confirms these findings.