Treatment of Post-Surgical Scars With Traditional Ablative Er:YAG Versus Fractional Ablative Er:YAG (Er:YAG)
研究概览
详细说明
Background: Scars are a common complaint of patients at presentation to a dermatology office. To optimize cosmetic results, the investigators propose to compare erbium-doped yttrium aluminium garnet (Er:YAG) laser therapy on two different settings: traditional ablative versus fractional ablative. A side to side comparison of split scars will be done to evaluate the two settings. Fractionated photothermolysis (fractional setting) has improved the field of laser surgery by allowing the surgery to target microscopic treatment zones (MTZ). MTZ's allow for cylinders of damage created by laser surgery to be surrounded by normal, unaffected skin. This acts as a reservoir for healing and allows for the microwounds created by laser treatment to heal quickly and with minimal discomfort.
Objective: To compare efficacy and cosmetic appearance of scars treated with Er:YAG ablative laser on traditional ablative resurfacing setting versus fractional ablative resurfacing setting.
Methods: Enroll 20 patients for nonsurgical treatment of surgical scars. Half of each scar will be treated with the Er:YAG laser on the traditional ablative setting and the other half of the scar will receive Er:YAG treatment with the fractional ablative setting. The patients will receive 3 treatments at monthly intervals. They will follow up at 1 and 2 months after the treatment. Pictures of the scar will be taken at a 45 degree and 90 degree angle at baseline, before each treatment, after each treatment, and at all follow up appointments. The patients will be blinded as to which side is treated with which laser setting. At the end of the trial, they will be offered the chance to have the side they felt had less improvement treated with the laser device that had been used on the contralateral side of the scar.
Results: A panel of three blinded dermatologists will evaluate the scar on a well-established five point grading scale for erythema, height and texture, and overall cosmetic outcome. The mean, standard deviation, and kappa values will be calculated. Patients will be asked the same scar evaluation questions as the panel as well as their overall satisfaction, how much pain was associated with the procedure, which laser they preferred, and would they recommend treatment to a friend or family member.
研究类型
注册 (实际的)
阶段
- 不适用
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- over 8 weeks s/p scar
- linear closure
- visibly symmetric scar
- over 18 years old
Exclusion Criteria:
- concomitant treatment of involved skin
- propensity for keloid scarring
- use of oral retinoids for the past 1 year
- pregnancy
- immunosuppression
- prior laser to the area
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:不适用
- 介入模型:单组作业
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
实验性的:1
Enroll 20 patients for nonsurgical treatment of surgical scars.
Half of each scar will be treated with the Er:YAG laser on the traditional ablative setting and the other half of the scar will receive Er:YAG treatment with the fractional ablative setting.
The patients will receive 3 treatments at monthly intervals.
They will follow up at 1 and 2 months after the treatment.
|
Half the scar will be treated with traditional ablative setting and the other half will be treated with the fractional ablative setting
|
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Patient Observer Scar Assessment Scale (POSAS)
大体时间:5 months
|
It uses a 10-point scoring system with a score of 1 representing a normal-appearing skin and a score of 10 representing the worst possible scar.
Total scores range from 6 to 60 with the lower score indicate a better outcome.
|
5 months
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Patient Preference
大体时间:5 months
|
The number of patients who preferred the fractionated laser
|
5 months
|
合作者和调查者
调查人员
- 首席研究员:Timothy S Brown, MD、University of Louisville
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
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Post-Surgical Scars的临床试验
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