800 nm Lightsheer半导体激光脱毛临床疗效及组织病理变化

目的通过观察中国人脱毛的临床疗效及治疗前后的组织病理改变,探讨Lightsheer半导体激光脱毛的机制,探索出中国人的最佳治疗参数。方法应用Lightsheer半导体激光仪(波长800 nm,脉宽100 ms,光斑面积为9 mm×9 mm)对80例脱毛者进行脱毛治疗,能量密度20～40 J/cm~2,2次治疗间隔为1个月。应用毛发平均直径及毛发平均密度定量观察临床疗效,光镜及电镜下观察脱毛前后毛发、毛囊及其他皮肤结构的组织病理改变。结果80例经过3次脱毛治疗后,治疗区域毛发数量显著减少,剩余少许新生毛发直径变细。光镜下见毛囊有损伤,电镜下见整个毛囊壁均有不同程度损伤,内外毛根鞘细胞,特别是毛球部的毛母质细胞胞质内发生空泡样改变,内质网明显扩张,线粒体肿胀,细胞内含有的黑素小体崩解等改变。结论Lightsheer半导体激光采用适当能量密度进行脱毛治疗,能有效而安全地脱去毛发。     

Lightsheer 800nm半导体激光脱毛的疗效与安全性

目的评价Lightsheer 800nm半导体激光脱毛的疗效及安全性。方法使用Lightsheer 800nm半导体激光脱毛仪对432例要求脱毛治疗者的不同部位,包括发际、唇毛、络腮胡、腋毛、胸部、背部、腰骶（隐性脊柱裂）、比基尼区及四肢行脱毛治疗,并对效果及安全性进行评价。结果脱毛治疗者治疗最少2次,最多29次,总有效率：发际63．64％、唇毛67．72％、络腮胡71．79％、腋毛100％、胸部100％、背部100%、腰骶47．92％、比基尼区100％、四肢82．61％,随着治疗次数的增加总有效率不断提高。不良反应为暂时性色素减退4例,色素沉着9例,未见瘢痕。结论Light—sheer 800nm半导体激光是安全、高效的脱毛方法。     

强脉冲光脱毛和半导体激光脱毛临床疗效分析

目的 评价强脉冲光脱毛及半导体激光脱毛临床疗效.方法 61例随机分为两组,36例为强脉冲光进行脱毛治疗组,25例为半导体激光进行脱毛治疗组.每次治疗间隔8周,总计治疗3次,治疗3个月后评价总疗效.结果 强脉冲光和半导体激光都使毛发数量明显减少.强脉冲光治疗组的有效率为80.6%,半导体激光治疗组的有效率为76.0%,...     

新锐脱毛术：半导体激光脱毛术

一项最新的脱毛技术——半导体激光脱毛术在美国、日本等发达国家被誉为最佳的脱毛方法。这项技术到底好在哪里?     

连续半导体激光脱毛1642例的疗效观察

目的：评价连续半导体激光脱毛的临床疗效及安全性.方法：应用波长为810 nm的连续半导体激光对1 642例患者进行脱毛.4～8周治疗1次,观察治疗后的疗效及不良反应.结果：经过3次治疗后毛发较治疗前明显减少 不同部位脱毛率不同,外阴（比基尼）、腋下和发际效果最好 面颊、唇部脱毛效果最差,3次脱毛有效率达100%.8例患者治疗后出现色素沉着,均于术后1～6个月内消退.结论：连续半导体激光脱毛是一种安全、有效的脱毛方法.     

应用半导体激光脱毛152例临床观察

近年来去除多余的毛发是男性和女性很普遍的美容项目，传统的方法如：刮、拨、蜡脱、电解法、药膏等，均不能从根本上解决问题，而且逐渐加重，近年来现代激光选择光热作用成功地应用于脱毛，不仅增加了疗效，使患者永久性脱毛成为现实，而且无任何副作用。笔者自2001年5月起应用半导体激光对152例多毛患者进行脱毛治疗，效果明显，现总结如下。     

高频率半导体激光脱毛的临床疗效观察

多数人出于美容目的接受脱毛治疗,对某些人而言面部或体部过多的毛发会觉得难看或不自信,通过对152例脱毛者的治疗观察,高频率半导体激光在Ⅲ、Ⅳ型皮肤脱毛的疗效及安全性是肯定的。     

半导体激光脱毛的疗效观察及分析

目的　观察半导体激光脱毛的疗效及治疗时间、能量及部位对脱毛效果的影响。方法　观察了 13 5 9例患者 ,采用Lightsheer半导体激光脱毛机 ,波长 80 0nm ,光斑直径 9mm× 9mm ,能量密度值 10～ 40J/cm2 ,治疗部位刮除毛发 ,逐渐增加治疗能量至毛囊焦化破坏 ,每次治疗间隔 2个月。详细记录治疗部位及治疗前后毛发颜色、密度 (根 /cm2 )、粗细、长度及激光能量、皮肤反应等。结果　所有患者均取得满意疗效 ,治疗后毛发再生减少 ,再生延迟 ,再生毛发细小、浅淡 ,各部位治疗次数及能量均不相同。结论　半导体激光脱毛方便快捷 ,疗效满意 ,不良反应小。但脱毛效果在合适能量下同治疗次数呈正相关 ,同治疗部位亦有关     

半导体激光脱毛的疗效观察及分析

目的观察半导体激光脱毛的疗效及治疗时间、能量及部位对脱毛效果的影响.方法观察了1 359例患者,采用Lightsheer半导体激光脱毛机,波长800 nm,光斑直径9 mm×9 mm,能量密度值10～40 J/cm2,治疗部位刮除毛发,逐渐增加治疗能量至毛囊焦化破坏,每次治疗间隔2个月.详细记录治疗部位及治疗前后毛发颜色、密度(根/cm2)、粗细、长度及激光能量、皮肤反应等.结果所有患者均取得满意疗效,治疗后毛发再生减少,再生延迟,再生毛发细小、浅淡,各部位治疗次数及能量均不相同.结论半导体激光脱毛方便快捷,疗效满意,不良反应小.但脱毛效果在合适能量下同治疗次数呈正相关,同治疗部位亦有关.     

长脉冲翠绿宝石激光脱毛的临床疗效评价

目的探讨长脉冲翠绿宝石激光脱毛的临床疗效。方法使用翠绿宝石长脉冲激光（波长755nm，脉宽20ms。光斑直径10mm）对2240例患者进行脱毛治疗，治疗能量l5～25J／cm^2，两次治疗间隔1～4个月。结果不同部位脱毛疗效不尽相同，四肢、腋窝的疗效较好，1次治疗的脱毛率约30％，2次为50％，3次为70％，而唇部、腮部、乳晕及毛痣的脱毛率较低。所有患者均有不同程度的毛发延迟生长。治疗结束后48个月的随访结果表明，治疗结束6个月后毛发密度不再增加。结论长脉冲翠绿宝石激光脱毛疗效稳定，为永久性脱毛，且无副作用。     

Meta-analysis of hair removal laser trials

Traditional hair-removal techniques have included shaving, waxing, chemical depilation, and electrolysis. All of these methods result in temporary hair removal. The theory of selective photo thermolysis led to the development of a variety of different laser systems. These lasers range from the short end of spectrum, with the 694-nm ruby laser, to the middle, with the 755-nm alexandrite and 810-nm diode lasers, and to the long end with the 1,064-nm Nd:YAG laser. We made a systematic review on the clinical trials with use of various laser sources for hair removal, so all clinical trials related to hair removal lasers in 1998–2003 were considered after elimination of heterogenite sources in data store. Trial results were synthetized on the basis of kind of laser. Our study clarified that hair reduction at least 6 months after the last treatment and hair reductions were 57.5, 42.3, 54.7, and 52.8% after three sessions for diode, Nd:YAG, alexandrite and ruby, respectively. We compared the result with use of analysis of variance method (Scheffes) and double comparison with use of Student’s t test. Our results clarified that diode laser is the most effective, and Nd:YAG has the least effect of hair removal.It seems that diode and alexandrite lasers are proper for hair removal, but as we need high fluence in the darker skin types and this is accompanied with higher complications, diode is advised for lighter skin, and we advised alexandrite laser for darker skin types.     

长脉冲翠绿宝石激光脱毛并发症的防治

目的 探讨长脉冲翠绿宝石激光脱毛并发症的发生原因及防治方法 .方法 使用长脉冲翠绿宝石激光,波长755 nm,脉宽20 ms,光斑直径12.5 mm,对2 562例（3 279部位）美容就医者进行脱毛,治疗能量12.0～16.5 J/cm2,两次间隔时间50～60 d.结果 治疗期出现红斑、皮疹、瘙痒、水疱、色素沉着或色素减退、瘢痕等并发症共236例（242部位）,效果不佳6例.结论 长脉冲翠绿宝石激光脱毛是一种安全有效的脱毛方法 ,治疗中规范操作能减少并发症的发生率.     

Ruby laser-assisted hair removal – correlation of efficacy with the growth cycle of human hair

There is great variation in response when ruby laser is used to remove unwanted body hair. Destruction of hair is often not possible after one laser treatment and the frequency and timing of repeated treatments required to achieve optimum treatment results are unknown. It was the aim of this study to determine whether the efficacy of ruby laser hair removal depended on the hair growth cycle. A prospective clinical study was carried out. The lower legs of 48 patients were treated with the Chromos 694 ruby laser at a standard fluence of 11 Jcm^–2. Treatment efficacy was determined as the percentage decrease in hair density at 3 and 7 months. The proportion of growing and resting hairs in the treatment site was assessed by examination of plucked hair roots harvested from areas adjacent to the treatment site. To determine whether examination of plucked hair roots microscopically was reliable in assessing the proportion of growing and resting hairs in a specific site, 7 ex-vivo scalp skins were examined histologically. Results showed that examination of plucked hair roots was a reliable method in assessing the proportion of growing and resting hair. There was no correlation between the treatment efficacy and the growth phases of hair (one way analysis of variance, P=0.116). In conclusion, growing hairs are not more susceptible than resting hairs to ruby laser injury. The clinical implications of this finding are discussed. Received: 14 November 1998 / Accepted: 4 December 1999     

超级脱毛模式的临床效果观察

目的 探讨超级脱毛模式（super hair remoral,SHR）的临床效果及耐受程度.方法 采用SHR对发际、面颊、上唇、胡须、胸腹、乳晕周围、腋窝、四肢及比基尼邻近区等共进行了1 000个部位的脱毛;对一些疼痛特别敏感的部位,如上唇及头面部,治疗时采用复方利多卡因乳膏外涂1 h以上.结果 四肢、胸腹、背部及腋窝部位的毛发,一般需要4～5次治疗方可达到根治目的 ,且美容就医者无明显不适感;上唇、下颌周围毛发一般需要5～7次治疗方可收到满意效果,且需要外涂麻药,否则部分美容就医者会呈现不适感.结论 SHR模式与传统脱毛方式、光子脱毛及其他激光脱毛方式相比,具有有效性高、脱毛速度快、耐受性强等优点,值得推广.