Reed J T, Joseph A K, Bridenstine J B
Department of Dermatology, University of Pittsburgh Medical Center, Pennsylvania 15213, USA.
Dermatol Surg. 1997 Aug;23(8):643-8.
Chemical peels are an effective treatment for wrinkles, but their use is limited because of the associated risk of scarring, hypopigmentation, and the inability to accurately control the depth of tissue injury. High energy, pulsed, or computer scanned continuous wave carbon dioxide (CO2) lasers cause minimal thermal injury, decrease the risk of scarring, and allow for precise control of tissue vaporization to predictable depths.
To compare the effectiveness and side effect profile of a medium-depth chemical peel to that of the SilkTouch CO2 laser in the treatment of periorbital wrinkles.
Twenty-four subjects (nine male, 15 female) with moderate to severe periorbital wrinkles were assigned a wrinkle score (1 = mild through 5 = severe) before treatment and 6 months after treatment. Each subject was treated with Jessner's solution and 35% trichloroacetic acid on one side and the SilkTouch CO2 laser on the other side.
The average periorbital wrinkle score decreased from 4.00 +/- 0.78 before laser treatment to 1.75 +/- 0.68 6 months after treatment. The chemical peel wrinkle score decreased from 4.13 +/- 0.85 to 3.29 +/- 0.99. The degree in which the wrinkle score improved after laser treatment compared with after chemical peel treatment was statistically significant. Posttreatment erythema lasted an average of 4.5 months for the laser-treated areas and 2.5 months for the chemical peel-treated areas.
Treatment of periorbital wrinkles with the SilkTouch CO2 laser resulted in a greater degree of improvement than treatment with a medium-depth chemical peel but had longer lasting posttreatment erythema.
化学剥脱术是治疗皱纹的一种有效方法,但由于存在瘢痕形成、色素减退的风险以及无法精确控制组织损伤深度,其应用受到限制。高能、脉冲或计算机扫描连续波二氧化碳(CO2)激光造成的热损伤最小,降低了瘢痕形成的风险,并能精确控制组织汽化至可预测的深度。
比较中度深度化学剥脱术与SilkTouch CO2激光治疗眶周皱纹的有效性和副作用情况。
24名患有中度至重度眶周皱纹的受试者(9名男性,15名女性)在治疗前和治疗后6个月被评定皱纹评分(1 = 轻度至5 = 重度)。每位受试者一侧用杰斯纳溶液和35%三氯乙酸治疗,另一侧用SilkTouch CO2激光治疗。
激光治疗前眶周皱纹平均评分从4.00±0.78降至治疗后6个月的1.75±0.68。化学剥脱术皱纹评分从4.13±0.85降至3.29±0.99。激光治疗后皱纹评分改善程度与化学剥脱术治疗后相比具有统计学意义。激光治疗区域治疗后红斑平均持续4.5个月,化学剥脱术治疗区域为平均2.5个月。
用SilkTouch CO2激光治疗眶周皱纹比中度深度化学剥脱术改善程度更大,但治疗后红斑持续时间更长。