Journal of cutaneous laser therapy最新文献

{"title":"Evaluation of a super long pulsed 810-nm diode hair removal laser in suntanned individuals","authors":"A. Rogachefsky, Sirunya Silapunt, D. Goldberg","doi":"10.1080/146288301753377942","DOIUrl":"https://doi.org/10.1080/146288301753377942","url":null,"abstract":"BACKGROUND: Laser hair removal is based on the dual concepts of selective photothermolysis and thermal relaxation time. In most laser hair removal systems, light with emitted pulse durations of 2–50 ms targets hair follicles. Such pulse durations usually lead to post-inflammatory pigmentary changes in suntanned individuals. OBJECTIVE: In this pilot study, we evaluated the clinical efficacy and side effect profile of a modified 810–nm diode laser device (Palomar SLP 1000Á, Burlington, MA, USA) operating in a super long pulse mode (200–1000 ms). METHODS: Five suntanned subjects with Fitzpatrick skin types II–IV received either one or two laser treatments at eight test sites. Treatments were delivered to suntanned skin. Pulse durations of 200–1000 ms were evaluated with delivered fluences ranging from 23 to 115 J cm 2 . Subjects were followed for 6 months after the first treatment. Subjects were evaluated for hair removal efficiency, optimal pulse duration and delivered fluence, one versus two treatments, and associated complication rate. RESULTS: The average hair reduction, 34%, did not significantly vary with pulse duration or fluence. Clinical evaluations rated two treatments superior to one. CONCLUSION: The results show that efficacious and safe hair removal can be accomplished with an 810–nm diode laser delivering super long pulse durations at a wide range of settings in suntanned individuals. For optimal safety in tanned patients, the highest fluence (115 J cm 2 ) and pulse duration (1000 ms) should be avoided.","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"3 1","pages":"57 - 62"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/146288301753377942","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59798800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forthcoming Meetings","authors":"","doi":"10.1080/146288301753378022","DOIUrl":"https://doi.org/10.1080/146288301753378022","url":null,"abstract":"9th Annual Winter Symposium of the American Academy of Facial Plastic & Reconstructive Surgery 10–14 March 2002 Vail, CO, USA Further information: AAFPRS 310S Henry Street Alexandria VA, 22314, USA Tel: +1 703 299 9291 Fax: +1 703 299 8898 22nd Annual Meeting of the American Society for L aser Medicine & Surgery 10–14 April 2002 Atlanta, GA, USA Further information: Richard O. Gregory Tel: +1 715 845 9283 Fax: +1 715 848 2493 E-mail: information@aslms.org","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"3 1","pages":"117 - 119"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/146288301753378022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59798813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Treatment of leg and face veins with a cryogen spray variable pulse width 1064-nm Nd:YAG laser - a prospective study of 47 patients","authors":"S. Eremia, Cindy Y. Li","doi":"10.1080/147641701753414960","DOIUrl":"https://doi.org/10.1080/147641701753414960","url":null,"abstract":"OBJECTIVE : Throughout the 1990s laser treatment of leg veins has been a challenge. Newer, longer wavelength lasers capable of delivering high fluences with larger spot sizes, with variable pulse width have shown promising preliminary results. Experience with these lasers for the treatment of facial telangiectasia and periorbital reticular veins is even more scant. To the authors' knowledge this is the first prospective study to evaluate a variable pulse width, cryogen spray-equipped 1064-nm Nd:YAG laser for the treatment of both leg and face veins, including larger periorbital reticular veins. METHODS : A total of 47 volunteers aged 32-67 years (30 skin type I-V with leg telangiectasia and reticular veins, and 17 skin type I-IV with face telangiectasia and reticular periorbital veins) were treated with the Nd:YAG laser. For leg vein patients, two to three sets of different leg veins were treated with a maximum of three treatments. Patients were examined 1 week after each treatment and at 1, 2, and 3 months after the last treatment. All face vein patients received one treatment and were examined at 1 month post treatment. Treatment parameters for both leg and face veins varied with the size of vessels being treated. Pre and post treatment 35-mm photographs were taken. Improvement was judged by two experienced physicians both visually on patients and by comparison of pre and post treatment photos. Results were graded as percentage resolution, in five groups: 0%, 0-25%, 25-50%, 50-75% and 75-100%. RESULTS : In all, 23 of 30 patients completed the leg vein segment of the study. A total of 41 leg vein sites were treated. Greater than 75% improvement was observed at 85% of the treated sites; greater than 50% improvement was observed at 95% of the treated sites; less than 25% improvement was observed at 5% of the treated sites. In all, 17 of 17 patients completed the face vein segment of the study. A total of 32 sites were treated (24 on cheeks, nose, and chin telangiectasia and eight periorbital reticular veins). Greater than 75% improvement was observed at 97% of the treated sites; greater than 50% improvement was observed at 100% of the treated sites. Notably, 100% of the facial reticular veins treated had essentially 100% resolution. Pain during treatment was variably perceived by patients, but occasionally was sufficient for patients to decline further treatment. Transient hemosiderin pigmentation, as seen with sclerotherapy, was common with larger vessels. CONCLUSION : The cryogen spray-equipped 1064-nm Nd:YAG laser was remarkably effective and safe for skin type I-V patients. Excellent results for leg veins, approaching sclerotherapy outcomes, were obtained for both 0.3-1.5-mm telangiectasia and larger 1.5-3-mm reticular veins. Furthermore, this laser is also an outstanding tool for treatment of facial telangiectasia with little if any risk of purpura. For the first time it appears that there is a safe and effective treatment for 1-2-mm periorbi","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"3 1","pages":"147 - 153"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/147641701753414960","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59955427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Necrobiosis lipoidica diabeticorum treated with the pulsed dye laser","authors":"G. Moreno‐Arias, A. Camps‐Fresneda","doi":"10.1080/147641701753414951","DOIUrl":"https://doi.org/10.1080/147641701753414951","url":null,"abstract":"BACKGROUND AND OBJECTIVE : Different treatment modalities have been advocated for necrobiosis lipoidica diabeticorum but clinical response is unpredictable. The purpose of this study was to evaluate the usefulness of pulsed dye laser (Candela SPTLÁ, Irvine, MA, USA) in the treatment of an area of necrobiosis lipoidica of 4 cm in diameter on the anterior aspect of the leg in a non-diabetic patient. MATERIALS AND METHODS : A spot test was made at 6.0, 6.5 and 7.0 J/cm 2 energy fluences and the best energy fluence was selected after a 2-month postoperative evaluation. The patient received three treatment sessions with a fluence of 6.5 J/cm 2 , 585-nm wavelength, 5-mm spot size, and 450 µs pulse duration at 8-week intervals. The patient was given routine skin care advice with emollient cream and sunscreen (SPF 15) until the following session. RESULTS : Overall cosmetic improvement was achieved, with a decrease of erythema and telangiectasis, and stabilization in terms of progression (size) in the left half of the lesion, with no modification of atrophy or pigmentary changes. The right upper quadrant of the lesion showed an erythematous peripheral halo with minimal reduction in the erythema and telangiectasia, and discrete size increase. CONCLUSION : Pulsed dye laser may be a useful treatment for improving the telangiectasia and erythematous component of necrobiosis lipoidica.","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"3 1","pages":"143 - 146"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/147641701753414951","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59955367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Re-epithelialization of the skin following CO 2 laser resurfacing","authors":"S. Collawn","doi":"10.1080/147641701753414924","DOIUrl":"https://doi.org/10.1080/147641701753414924","url":null,"abstract":"Wound healing following CO 2 laser resurfacing of the face is a complex process which must involve a rapid replacement of the ablated epidermis to protect the underlying structures in the skin from desiccation and deeper injury. The majority of cells that regenerate the epidermis come from the hair follicles, and cell movement out of the follicles is monitored using immunofluorescence with antibodies to keratin 17, an intermediate filament protein expressed in the migrating front of cells. This migration is enhanced with occlusive dressings used immediately after the resurfacing procedure. Skin biopsies have been examined at multiple time points following resurfacing, and re-epithelialization begins by 48 h in skin that has been occluded. Skin that has been left open with no treatment forms an eschar and has no keratinocyte migration at 48 h, thus displaying delayed wound healing.","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"3 1","pages":"123 - 127"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/147641701753414924","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59955316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hair reduction using a new intense pulsed light irradiator and a normal mode ruby laser","authors":"P. Bjerring, M. Cramers, H. Egekvist, K. Christiansen, A. Troilius","doi":"10.1080/14628830050516470","DOIUrl":"https://doi.org/10.1080/14628830050516470","url":null,"abstract":"OBJECTIVE : The main purpose of this clinical study was to compare the effectiveness of an intense pulsed light irradiator system (IPL) and a normal mode ruby laser for hair removal. MATERIALS AND METHODS : Thirty-one patients were treated 3 times with a new IPL system on one side of the chin and neck and with a normal mode ruby laser on the other side. After 6 months, nine of the patients received 3 additional IPL treatments and 11 patients received 3 additional ruby laser treatments. All treatment intervals were 2 months. Hair reduction was measured by hair counts on close-up photographs. RESULTS : Hair reduction was obtained by 93.5% of the patients after 3 IPL treatments and by 54.8% after 3 ruby laser treatments. The average hair count was reduced by 49.3% after IPL treatments and by 21.3% after ruby laser treatments. Three additional IPL treatments following 3 IPL treatments resulted in only 6.6% further hair reduction - in total 55.9%, whereas 3 IPL treatments following 3 ruby laser treatments resulted in an additional 35.5% hair reduction - in total 56.8%. CONCLUSIONS : The IPL was found to be 3.94 times more effective than the ruby laser for hair removal. In the chin and neck region, more than 3 treatments with the IPL did not improve the therapeutic result significantly.","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"2 1","pages":"63 - 71"},"PeriodicalIF":0.0,"publicationDate":"2000-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14628830050516470","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59798513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vascular mechanisms in laser hair removal","authors":"R. Adrian","doi":"10.1080/14628830050516623","DOIUrl":"https://doi.org/10.1080/14628830050516623","url":null,"abstract":"To the Editors, There is no doubt that permanent hair removal or reduction by means of lasers has received tremendous media and public attention. Unfortunately, initialÐ largely unsubstantiatedÐclaims fueled public expectations far exceeding the technical capabilities of these systems. Recent research efforts have attempted to better de®ne the role of lasers in the process of hair removal. These studies have examined factors such as wavelength, pulse duration, ̄uence, hair color, growth stage and active and passive cooling in an attempt to improve clinical ef®cacy and limit post operative side effects. The microscopic anatomy of the hair follicle has been well described. Two structures appear to play a role in hair growth and regeneration. The dermal papilla controls follicular growth, function and differentiation. The bulge area may carry the stem-cell capacity for follicular regeneration. Histologic studies of anagen follicles treated by means of laser show coagulative necrosis of the dermal papilla and hair shaft with surrounding thermal damage to the root sheaths and perifollicular tissue (Figure 1). In an attempt to further elucidate mechanisms involved in laser hair removal, we studied biopsies from sites treated using long-pulsed Alexandrite 755 nm, Diode 810 nm, and long-pulsed Nd:YAG 1064 nm lasers. All of these systems are capable of signi®cant widespread destruction of anagen follicles (Figure 2). In addition, higher ̄uences were associated with marked perifollicular damage, particularly at the base of the follicles surrounding the dermal papilla. Three distinct responses may be seen in follicles exposed to laser radiation of suf®cient ̄uence and of proper wavelength miniaturization of follicles, decreased pigmentation of regrowing hair and degeneration of follicles with ®brosis. Although most investigators have focused on the bulb and bulge as the target for laser hair","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"2 1","pages":"49 - 50"},"PeriodicalIF":0.0,"publicationDate":"2000-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14628830050516623","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59798731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Letter to the Editors","authors":"P. Bjerring","doi":"10.1080/146288300750163790","DOIUrl":"https://doi.org/10.1080/146288300750163790","url":null,"abstract":"We appreciate the comments by Dr Cyrus Chess regarding our clinical comparison of hair reduction using the newest generation IPL and a Ž rst generation ruby laser. Dr Chess suggests that similar parameters regarding spot size, pulse duration, and contact between irradiator and skin should have been used. However, a standardization of these parameters would have totally changed the scope of the investigation, which was to perform a clinical comparison of one of the earliest, to one of the newest, devices for hair removal. In other words, our aim was to investigate the clinical implications of the technological developments of a couple of treatment devices since the beginning of optical depilation. It is beyond the scope of the present investigation to study the clinical effect of every single speciŽ c difference in the physical parameters of the two devices. We agree with Dr Chess in his general comments on spot size, pulse duration, and photon recycling. Instead of comparing the Ž rst generation ruby laser to the IPL, we could have chosen to compare the Ž rst ruby laser with one of the newer ruby lasers. However, to make the investigation more relevant to the majority of current users of optical depilation devices, we decided to compare the ruby laser to an IPL, as the IPLs have gained increased popularity in recent years. A comparison between the E-2000 ruby laser and the Ellipse Relaxlight 1000 as suggested by Dr Chess was not possible, as the E-2000 was not available at the beginning of the study. It was not our intention to state that broad band irradiation in general is more effective than monochromatic light. We investigated the clinical efŽ cacy of two speciŽ c devices and found the new IPL to be more effective than the ruby laser, and we did not attempt to draw any general conclusions regarding the efŽ cacy of other devices.","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"2 1","pages":"211 - 211"},"PeriodicalIF":0.0,"publicationDate":"2000-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/146288300750163790","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59798960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Q-switched Nd:YAG laser: rhytid improvement by non-ablative dermal remodeling","authors":"D. Goldberg, Sirunya Silapunt","doi":"10.1080/14628830050516425","DOIUrl":"https://doi.org/10.1080/14628830050516425","url":null,"abstract":"BACKGROUND : The Q-switched Nd:YAG laser has been used for a variety of dermatologic indications including tattoo and hair removal, as well as vascular and pigmented lesion treatment. Previous studies have suggested that this laser may also be safe and effective in the non-ablative treatment of rhytids. OBJECTIVES : The purpose of this study was to evaluate the safety and efficacy of the Q-switched Nd:YAG laser in the non-ablative dermal remodeling of facial rhytids. METHODS : Eight subjects were treated at 3 monthly intervals with a Q-switched Nd:YAG laser. Two passes with fluences of 7 J/cm 2 and a 3-mm spot size were utilized. Clinical improvement and adverse effects were assessed 3 months after the last treatment. RESULTS : Six of the eight subjects showed clinical improvement as assessed by an independent observer. No pigmentary changes, erythema, or scarring were observed at the end of the study. CONCLUSION : The Q-switched Nd:YAG laser may be used for the non-ablative treatment of facial rhytids.","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"2 1","pages":"157 - 160"},"PeriodicalIF":0.0,"publicationDate":"2000-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14628830050516425","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59798399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cutaneous lesions in hereditary haemorrhagic telangiectasia: successful treatment with the tunable dye laser","authors":"RU Dave, P. Mahaffey, BE Monk","doi":"10.1080/146288300750163763","DOIUrl":"https://doi.org/10.1080/146288300750163763","url":null,"abstract":"BACKGROUND : Hereditary haemorrhagic telangiectasia (HHT) is an autosomal dominant condition that has cutaneous telangiectasia as a component of its manifestations. It has been found that the tunable dye laser is effective in the clearance of these lesions. METHODS : Twelve patients with HHT between 1991 and 1999 were treated with the tunable dye laser. Treatment was carried out at 3-month intervals. RESULTS : Of the 12 patients treated with the tunable dye laser, 10 were evaluated after treatment. In all cases, the cutaneous component had resolved. CONCLUSION : The diagnosis of HHT should be considered in all cases of telangiectatic skin lesions. The tunable dye laser appears to be an effective means of resolving any cosmetic problems.","PeriodicalId":81650,"journal":{"name":"Journal of cutaneous laser therapy","volume":"2 1","pages":"191 - 193"},"PeriodicalIF":0.0,"publicationDate":"2000-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/146288300750163763","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59798859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}