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Alexandrite 755

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https://www.readbyqxmd.com/read/29732522/a-split-face-study-comparison-of-picosecond-alexandrite-laser-and-q-switched-nd-yag-laser-in-the-treatment-of-melasma-in-asians
#1
Mei-Ching Lee, Ying-Fang Lin, Sindy Hu, Yau-Li Huang, Shyue-Luen Chang, Chun-Yu Cheng, Chun-Shin Chang
To evaluate efficacy and safety of picosecond 755 nm alexandrite laser as compared to 1064 nm QS-Nd:YAG laser for melasma treatment in Asians. Twelve patients received 4 sessions of treatments at 1-month interval in a split-face manner. The right side of each patient's face received 755 nm picosecond laser, and the other side received 1064 nm QS-Nd:YAG laser. Zoom handpiece of 755 nm picosecond laser at fluence of 0.88-1.18 J/cm2 was applied. The treatment protocol used for 1064 nm QS-Nd:YAG laser was 8 mm spot size at fluence of 2...
May 7, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29423841/treatment-of-flat-and-elevated-pigmented-disorders-with-a-755-nm-alexandrite-picosecond-laser-clinical-and-histological-evaluation
#2
Adrian Alegre-Sanchez, Natalia Jiménez-Gómez, Óscar M Moreno-Arrones, Pablo Fonda-Pascual, Bibiana Pérez-García, Pedro Jaén-Olasolo, Pablo Boixeda
The novel picosecond lasers, initially developed for faster tattoo removal, have also shown great efficacy in endogenous pigmentary disorders. To describe the efficacy and safety profile of an alexandrite (755-nm) picosecond laser in a wide range of pigmented flat and elevated cutaneous lesions. A retrospective study was performed in which we collected all the clinical images of patients treated with the 755-nm alexandrite picosecond laser for 12 months (November 2016-November 2017). Clinical features were obtained from their medical charts...
February 9, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29379862/removal-of-forearm-lentigines-in-dyschromatosis-universalis-hereditaria-with-a-755-nm-q-switched-alexandrite-laser
#3
Yiming Li, Li Li
No abstract text is available yet for this article.
January 2018: JAAD Case Reports
https://www.readbyqxmd.com/read/29288102/a-split-face-single-blinded-randomized-controlled-comparison-of-alexandrite-755-nm-picosecond-laser-versus-alexandrite-755-nm-nanosecond-laser-in-the-treatment-of-acquired-bilateral-nevus-of-ota-like-macules
#4
Wenyou Yu, Jiafang Zhu, Wenxin Yu, Dongze Lyu, Xiaoxi Lin, Zhen Zhang
BACKGROUND: Q-switched alexandrite lasers (QSALs) have been used for the treatment of acquired bilateral nevus of Ota-like macules (ABNOMs). Currently, picosecond alexandrite laser (PSAL) pulses have become available for pigmentary disorders. However, no studies have compared PSAL and QSAL in the treatment of ABNOM. OBJECTIVE: We sought to compare the efficacy and safety of PSAL and QSAL in the treatment of ABNOM. METHODS: Each patient (n = 30) received 3 treatments at 6-month intervals...
December 27, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29200769/treatment-of-melasma-and-post-inflammatory-hyperpigmentation-by-a-picosecond-755-nm-alexandrite-laser-in-asian-patients
#5
Ye Jin Lee, Ho Jeong Shin, Tai-Kyung Noh, Kwang-Ho Choi, Sung-Eun Chang
The picosecond lasers have shown to effectively treat tattoo pigments that are intractable to previous multiple Q-switched (QS) laser treatments. Therefore we hypothesized that a picosecond laser would show better efficacy with minimal adverse events in the treatment of melasma and post-inflammatory hyperpigmentation (PIH) that are difficult to treat with conventional QS lasers. Two patients with melasma and one patient with PIH were treated with a Picosecond 755-nm Alexandrite Laser (Cyanosure, USA). All patients were Korean with skin type IV and no longer responding to QS laser treatments...
December 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/29140537/using-normal-and-high-pulse-coverage-with-picosecond-laser-treatment-of-wrinkles-and-acne-scarring-long-term-clinical-observations
#6
Christine Dierickx
OBJECTIVE: The picosecond 755 nm alexandrite laser using a diffractive lens array has demonstrated consistent clinical efficacy for improving the appearance of acne scarring and wrinkles amongst other benefits. This small pilot study is to assess the difference, if any, in clinical benefit if a higher than the standard protocol for number of pulses delivered to a tissue area is used compared to the standard protocol guidelines. METHOD: Seven subjects received treatment to one side of the face with a standard protocol number of laser pulses with the other side of the face receiving higher than standard number of pulses from the same 755 nm picosecond laser using an additional diffractive lens array...
January 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29135036/prospective-studies-of-the-efficacy-and-safety-of-the-picosecond-755-1-064-and-532-nm-lasers-for-the-treatment-of-infraorbital-dark-circles
#7
Monique J Vanaman Wilson, Isabela T Jones, Joanna Bolton, Lisa Larsen, Douglas C Wu, Mitchel P Goldman
BACKGROUND: Infraorbital dark circles result from a combination of factors. The fractionated picosecond 755 nm alexandrite laser and dual wavelength picosecond Nd:YAG laser have not been examined as a method of addressing infraorbital hyperpigmentation. OBJECTIVE: To determine the efficacy and safety of treatment of infraorbital dark circles using fractionated picosecond 755 nm and dual wavelength picosecond Nd:YAG laser. METHODS AND MATERIALS: These trials did not utilize a comparative design; rather, these were separate, prospective, open-label, evaluator-blinded trials utilizing two treatment regimens: (i) 19 adult subjects were treated in a single session with the dual wavelengths of 532 nm and 1,064 nm in consecutive passes using the fractionated lens; (ii) 10 adult subjects were treated using the picosecond 755 nm laser via the fractionated lens in three treatment sessions at 3 week intervals...
January 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29111604/a-comparative-study-with-a-755-nm-picosecond-alexandrite-laser-with-a-diffractive-lens-array-and-a-532-nm-1064-nm-nd-yag-with-a-holographic-optic
#8
Emil Tanghetti Md, John Jennings
BACKGROUND AND OBJECTIVES: This study was performed to better understand the cutaneous effects of using a fractional picosecond laser at 755 nm with a diffractive lens array and a picosecond Nd:YAG laser at 532 mn and 1064 nm with a holographic optic. We characterized the injuries created by these devices on skin clinically and histologically over 24 hours. With this information we modeled the effects of these devices on a cutaneous target. METHODS: Eight patients, representing Fitzpatrick skin types I-VI, were treated on their backs with a picosecond Alexandrite laser with a diffractive lens array, as well as a picosecond Nd:YAG laser at 532 nm and 1064 nm with a holographic optic...
January 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29020484/long-term-outcome-of-a-patient-with-paradoxical-hypertrichosis-after-laser-epilation
#9
Adam Honeybrook, Tascha Crossing, Eric Bernstein, Jason Bloom, Julie Woodward
One underreported, rare side effect of laser hair removal is paradoxical hypertrichosis. It is largely unknown what the long-term outcomes are of patients who develop this complication. We report a 21-year-old, Fitzpatrick II, male patient, who had patchy areas of dark hair affecting various body areas. An Alexandrite 755 nm laser was used to address the desired areas at energies between 20 and 22 J/cm2 at 10-12-week intervals over a course of seven treatments. After three treatments, the patient noted a significant increase in the density and length of hairs involving the back, shoulders, neck, and upper arms...
October 11, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29016541/a-novel-treatment-of-acne-keloidalis-nuchae-by-long-pulsed-alexandrite-laser
#10
Abeer Tawfik, Mai Abdelraouf Osman, Iman Rashwan
BACKGROUND: Acne keloidalis nuchae (AKN) is a dermatological condition characterized by follicular-based papules and pustules that later form hypertrophic or keloid-like scars. Laser-assisted hair reduction such as 810-nm diode laser and 1,064-nm Nd:YAG laser have been used for treating AKN with promising results. OBJECTIVE: To evaluate the therapeutic effect and safety of alexandrite laser in the treatment of different lesions of AKN. METHODS: Seventeen male patients with AKN received 6 sessions of 755-nm alexandrite laser...
March 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28854299/response-to-laser-treatment-of-caf%C3%A3-au-lait-macules-based-on-morphologic-features
#11
MULTICENTER STUDY
Daniel A Belkin, Julia P Neckman, Hana Jeon, Paul Friedman, Roy G Geronemus
Importance: Response to laser treatment for café au lait macules (CALMs) is inconsistent and difficult to predict. Objective: To test the hypothesis that irregularly bordered CALMs of the "coast of Maine" subtype respond better to treatment than those of the smooth-bordered "coast of California" subtype. Design, Setting, and Participants: This retrospective case series included patients from 2 multiple-clinician US practices treated from 2005 through 2016...
November 1, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28471788/localized-cutaneous-argyria-from-a-nasal-piercing-successfully-treated-with-a-picosecond-755-nm-q-switched-alexandrite-laser
#12
Daniel P Friedmann, Sara Buckley, Vineet Mishra
No abstract text is available yet for this article.
August 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28406866/successful-treatment-of-a-residual-thick-infantile-hemangioma-in-a-darker-phototype-pediatric-patient-using-the-755-nm-long-pulsed-alexandrite-laser
#13
Hao Feng, Arielle N B Kauvar
No abstract text is available yet for this article.
April 11, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28319270/evaluation-of-a-transparent-perfluorodecalin-infused-patch-as-an-adjunct-to-laser-assisted-tattoo-removal-a-pivotal-trial
#14
Brian S Biesman, Cara Costner
BACKGROUND AND OBJECTIVE: Laser-assisted treatment of tattoos is well recognized to produce opaque epidermal whitening that prevents multiple sequential passes during a single treatment session. The amount of epidermal whitening produced in association with the procedure can be minimized by topical application of perfluorodecalin (PFD), which is an optical clearing agent. This pivotal trial assessed the ability of a transparent PFD-infused patch used in conjunction with a Q-switched nanosecond laser in the treatment of tattoos to permit multiple laser passes during a single 5 minute treatment session in comparison to the number of passes that could be completed using conventional treatment of the tattoo with the laser alone...
March 20, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28002102/755-nm-q-switched-alexandrite-laser-as-a-treatment-for-melanonychia-caused-by-onychomycosis
#15
Sang Ju Lee, Joon Seok, Kui Young Park, Seong Jun Seo
No abstract text is available yet for this article.
July 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27868243/simulation-of-laser-tattoo-pigment-interaction-in-a-tissue-mimicking-phantom-using-q-switched-and-long-pulsed-lasers
#16
K J Ahn, B J Kim, S B Cho
BACKGROUND: Laser therapy is the treatment of choice in tattoo removal. However, the precise mechanisms of laser-tattoo pigment interactions remain to be evaluated. METHODS: We evaluated the geometric patterns of laser-tattoo pigment particle interactions using a tattoo pigment-embedded tissue-mimicking (TM) phantom. RESULTS: A Q-switched (QS) neodymium-doped yttrium aluminum garnet laser was used at settings of 532-, 660-, and 1064-nm wavelengths, single-pulse and quick pulse-to-pulse treatment modes, and spot sizes of 4 and 7 mm...
November 20, 2016: Skin Research and Technology
https://www.readbyqxmd.com/read/27746661/successful-treatment-of-tattoos-with-a-picosecond-755-nm-alexandrite-laser-in-asian-skin
#17
Sang Hyung Lee, Mi-Hye Lee, Tai-Kyung Noh, Kwang-Ho Choi, Chong-Hyun Won, Sung Eun Chang, Mi-Woo Lee, Jee-Ho Choi
No abstract text is available yet for this article.
October 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27746641/prospective-comparison-of-dual-wavelength-long-pulsed-755-nm-alexandrite-1-064-nm-neodymium-yttrium-aluminum-garnet-laser-versus-585-nm-pulsed-dye-laser-treatment-for-rosacea
#18
Hyun-Min Seo, Jung-In Kim, Han-Saem Kim, Young-Jun Choi, Won-Serk Kim
BACKGROUND: Rosacea treatments including oral/topical medications and laser therapy are numerous but unsatisfactory. OBJECTIVE: To compare the effectiveness of the dual wavelength long-pulsed 755-nm alexandrite/1,064-nm neodymium: yttrium-aluminum-garnet laser (LPAN) with that of 585-nm pulsed dye laser (PDL) for rosacea. METHODS: This was a randomized, single-blinded, comparative study. Full face received four consecutive monthly treatments with LPAN or PDL, followed-up for 6 months after the last treatment...
October 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27721561/picosecond-pulse-duration-laser-treatment-for-dermal-melanocytosis-in-asians-a-retrospective-review
#19
Takafumi Ohshiro, Toshio Ohshiro, Katsumi Sasaki, Kazuo Kishi
Background and aims: Recently novel picosecond duration lasers (ps-lasers) have been developed for the treatment of multicolored and recalcitrant tattoos, and safety and efficacy have been reported. We therefore hypothesized that the ps-laser could be an alternative treatment for dermal pigmented lesions and performed a retrospective review to evaluate the efficacy and safety of the ps-laser. Subjects and methods: A retrospective photographic review of 10 patients with dermal pigmented lesions was performed (ages from 4 months to 52 yr), 6 nevus of Ota, 3 ectopic Mongolian spots and 1 Mongolian spots...
June 29, 2016: Laser Therapy
https://www.readbyqxmd.com/read/27681221/safety-and-efficacy-of-a-novel-diffractive-lens-array-using-a-picosecond-755-nm-alexandrite-laser-for-treatment-of-wrinkles
#20
Robert A Weiss, David H McDaniel, Margaret A Weiss, Anne Marie Mahoney, Karen L Beasley, Christian R Halvorson
INTRODUCTION: Picosecond lasers have been reported to be effective for removal of tattoo pigment. This prospective study evaluated the efficacy and safety of the treatment of peri-oral and -ocular wrinkles using a novel diffractive lens array coupled with a picosecond 755 nm alexandrite laser. METHODS: Forty female subjects presenting with wrinkles from photodamage were enrolled in an IRB approved study. Subjects received four picosecond diffractive lens array treatments to the full face at 1 month intervals...
January 2017: Lasers in Surgery and Medicine
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