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https://www.readbyqxmd.com/read/29608215/prospective-study-of-removing-solar-lentigines-in-asians-using-a-novel-dual-wavelength-and-dual-pulse-width-picosecond-laser
#1
Kei Negishi, Hirotaka Akita, Yukiko Matsunaga
OBJECTIVES: Quality-switched (QS) lasers are known to be an effective treatment for removing solar lentigines, however, high incidence of post-inflammatory hyperpigmentation (PIH) is a concern in darker skin types. The objective of this study was to evaluate the efficacy and safety of a dual-wavelength and dual-pulse width picosecond Nd:YAG laser for removing solar lentigines in Asians. METHODS: This was a prospective, IRB-approved study. Twenty cases with solar lentigines on the face were enrolled for treatment and evaluated at 1- and 3-month after the final treatment...
April 2, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29521541/a-retrospective-analysis-of-the-clinical-efficacies-and-recurrence-of-q-switched-nd-yag-laser-treatment-of-nevus-of-ota-in-224-chinese-patients
#2
Yan Liu, Weihui Zeng, Di Li, Weihua Wang, Feng Liu
BACKGROUND: Nevus of Ota can be treated successfully using the Q-switched (QS) laser; but few studies are long-term retrospective of the efficacy and influencing factor, studies on the recurrence is even less. PURPOSE: Retrospective analysis of the clinical characteristics and recurrence of QS Nd:YAG laser treatment of nevus of Ota in 224 Chinese patients at Laser Cosmetology Center of Department of Dermatology, the Second Hospital, Xi'an Jiaotong University. METHODS: The data of 224 patients with nevus of Ota were analyzed retrospectively, which included the correlation among lesion color, treatment sessions, gender, age, lesion types and effect, and all patients were followed up for 2-10 years...
March 9, 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29505310/intradermal-tranexamic-acid-injections-to-prevent-post-inflammatory-hyperpigmentation-after-solar-lentigo-removal-with-a-q-switched-532-nm-nd-yag-laser
#3
Punyaphat Sirithanabadeekul, Rattima Srieakpanit
INTRODUCTION: Post-inflammatory hyperpigmentation (PIH) after solar lentigo removal using a Q-switched (QS) 532-nm Nd:YAG laser is a cause for concern. This study aimed to evaluate the efficacy and safety of intradermal injections of tranexamic acid (TA) at reducing the risk of PIH after QS 532-nm Nd:YAG laser treatment of solar lentigines. METHODS: Twenty-five patients with 50 solar lentigines on forearms underwent QS 532-nm Nd:YAG laser treatment. Then, TA (50 mg/mL) was injected randomly into one lesion and 0...
March 5, 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29482397/a-prospective-randomized-double-blinded-split-face-pilot-study-comparing-q-switched-1064-nm-nd-yag-versus-532-nm-nd-yag-laser-for-the-treatment-of-solar-lentigines
#4
Krista Bohnert, Andrew Dorizas, Neil Sadick
Treating photoaging with laser technologies has increased in popularity due to their efficacy, minimal downtime, and side effects. New Q-Switched (QS) Nd:YAG lasers' frequency doubled with 532 nm wavelength can both target epidermal chromophores as well as stimulate collagen production. The objective of this study was to compare single-pulsed 1064-nm Nd:YAG with dual-pulsed 532-nm/1064-nm QS laser for reducing solar lentigines. Ten subjects with solar lentigines were enrolled in this prospective, randomized, double-blind, split-face study...
February 26, 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28986651/a-study-on-the-clinical-characteristics-of-treating-nevus-of-ota-by-q-switched-nd-yag-laser
#5
Liu Yan, Li Di, Wang Weihua, Liu Feng, Li Ruilian, Zhou Jun, Su Hui, Ying Zhaoxia, Zeng Weihui
The purpose of this study was to retrospectively analyze the clinical characteristics of treating nevus of Ota by Q-switched Nd:YAG laser in Laser Cosmetology Center of Department of Dermatology, the Second Hospital, Xi'an Jiaotong University. The data of 1168 patients of nevus of Ota were analyzed retrospectively, which included the correlation among lesion color, treatment sessions, sex, age, lesion types, and effect. The Q-switched (QS) Nd:YAG laser system had a higher number of treatment sessions which were positively associated with a better response to treatment...
January 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/28761290/beneficial-effect-of-low-fluence-1-064-nm-q-switched-neodymium-yttrium-aluminum-garnet-laser-in-the-treatment-of-senile-lentigo
#6
Jae-Hui Nam, Han-Saem Kim, Ga-Young Lee, Won-Serk Kim
BACKGROUND: Low fluence 1,064 nm Q-switched (QS) Neodymium:Yttrium-Aluminum-Garnet (Nd:YAG) laser treatment, also known as laser toning, is widely used for pigmentary disorders. There has been no reliable evaluation of the effect of low fluence 1,064 nm QS Nd:YAG laser for senile lentigo. OBJECTIVE: To investigate the beneficial effect of low fluence 1,064 nm QS Nd:YAG laser in the treatment of senile lentigo on the face. METHODS: A retrospective review was conducted on patients treated only with repetitive low fluence 1,064 nm QS Nd:YAG laser...
August 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28690515/a-case-of-facial-partial-unilateral-lentiginosis-treated-with-low-fluence-1-064-nm-q-switched-neodymium-doped-yttrium-aluminum-garnet-laser
#7
En Hyung Kim
Partial unilateral lentiginosis (PUL) is an unusual pigmentary disorder characterized by numerous lentigines grouped within an area of normal skin. Although treatment is not necessary, many patients with facial PUL seek medical help for cosmetic reasons. There is no established standard treatment for PUL. Conventional lasers may cause postinflammatory hyperpigmentation because keratinocytes are injured during the process. Also, scarring, long downtime, and pain are important issues. A 19-year-old patient with facial PUL was successfully treated with low-fluence 1,064-nm Q-switched neodymium-doped yttrium aluminum garnet (QS Nd:YAG) laser...
May 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28682146/treatment-of-caf%C3%A3-au-lait-macules-with-a-high-fluenced-1064-nm-q-switched-neodymium-yttrium-aluminum-garnet-laser
#8
Jiehoon Kim, Hoon Hur, Yu Ri Kim, Sung Bin Cho
Café-au-lait macules (CALMs) are light to dark brown macules or patches of increased melanin concentration found along the dermoepidermal junction. Although many attempts to treat CALMs using various kinds of laser/light-based devices have been reported, CALMs remain refractory thereto with high recurrence rates. In this case series, we describe four patients with idiopathic CALMs that were effectively and safely treated with a non-ablative, high-fluenced, Q-switched (QS), 1064-nm neodymium:yttrium aluminum garnet (Nd:YAG) laser...
February 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28657378/a-split-face-investigator-blinded-comparative-study-on-the-efficacy-and-safety-of-q-switched-nd-yag-laser-plus-microneedling-with-vitamin-c-versus-q-switched-nd-yag-laser-for-the-treatment-of-recalcitrant-melasma
#9
Pelin Ustuner, Ali Balevi, Mustafa Ozdemir
BACKGROUND: High recurrence has previously been reported in the treatment of melasma with low-fluence 1,064-nm Q-switched neodymium-doped yttrium aluminium garnet (QS-Nd:YAG) laser. On the other hand, the efficacy and safety of the QS-Nd:YAG laser plus microneedling with vitamin C have not been evaluated in patients with mixed-type melasma. MATERIAL AND METHODS: Sixteen patients with recalcitrant dermal- or mixed-type melasma were included in the study. One side of patients' face was treated with QS-Nd:YAG laser plus microneedling with vitamin C (Group A) and the other side with QS-Nd:YAG laser alone (Group B) for four sessions at four-week intervals...
November 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28394665/comparison-of-q-switched-nd-yag-laser-alone-versus-its-combination-with-ultrapulse-co2-laser-for-the-treatment-of-black-tattoo
#10
Mithila Vanarase, Ram Krishan Gautam, Pooja Arora, Sonali Bajaj, Neha Meena, Ananta Khurana
BACKGROUND: Q-switched lasers are conventionally used for the treatment of black tattoo. However, they require multiple sittings, and the response may be slow due to competing epidermal pigment in dark skin. OBJECTIVE: To compare the efficacy of Q-switched Nd:YAG laser alone with its combination with ultrapulse CO2 for the removal of black tattoo. MATERIALS AND METHODS: Sixty patients with black tattoo were randomized into two groups viz., group A and group B...
April 10, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28265789/depigmentation-with-q-switched-nd-yag-laser-in-universal-vitiligo-a-long-term-follow-up-study-of-4%C3%A2-years
#11
Imran Majid, Saher Imran
Q-switched (QS) lasers are used for depigmentation in universal vitiligo, but there is limited data on long-term results after laser treatment. This study was conducted to assess the safety and long-term follow-up results of QS Nd:YAG laser treatment in combination with need-based topical depigmentation therapy for universal vitiligo. A retrospective study was performed on patients with universal vitiligo who had received QS Nd:YAG laser treatment from 2010 to 2013. All patients were contacted and called for follow-up...
May 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/27786580/postinflammatory-hyperpigmentation-associated-with-treatment-of-solar-lentigines-using-a-q-switched-532-nm-nd-yag-laser-a-multicenter-survey
#12
MULTICENTER STUDY
Hyun Ji Kang, Jung Im Na, Jong Hee Lee, Mi Ryung Roh, Joo Yeon Ko, Sung Eun Chang
PURPOSE: To characterize the risk factors of Korean patients for postinflammatory hyperpigmentation (PIH) during treatment of solar lentigines using a Q-switched 532-nm Nd: YAG (QS 532 NY) laser. MATERIALS AND METHODS: The present retrospective multicenter study was conducted at the dermatology clinics of five tertiary hospitals in Korea. Between October 2007 and January 2013, 516 patients were enrolled and reviewed for clinical features and factors associated with PIH...
August 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/27450275/efficacy-and-safety-of-fractional-q-switched-1064-nm-neodymium-doped-yttrium-aluminum-garnet-laser-in-the-treatment-of-melasma-in-chinese-patients
#13
Baishuang Yue, Qianli Yang, Jinhua Xu, Zhong Lu
Melasma is an acquired disorder of symmetrical hyperpigmentation commonly seen in patients with Fitzpatrick skin types III and IV. Various novel therapeutic modalities have emerged to treat melasma. The large-spot low-fluence QS Nd:YAG laser has been widely used in Asia; however, the modality needs to be optimized because of the high recurrence rate. The objective of this study is to explore the clinical efficacy and safety of fractional-mode (Pixel) Q-switched neodymium-doped yttrium aluminum garnet (Nd:YAG) 1064-nm laser for treatment of melasma in Chinese patients...
November 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27349828/long-term-results-in-low-fluence-1064-nm-q-switched-nd-yag-laser-for-melasma-is-it-effective
#14
Hilal Gokalp, Ayse Deniz Akkaya, Yasemin Oram
OBJECTIVE: This study assessed the safety and clinical efficacy of a low-fluence 1064-nm Q-switched neodymium-doped:yttrium aluminum garnet (QS-Nd:YAG) laser in the treatment of patients with melasma. METHODS: The study evaluated 34 melasma patients treated at a single institution using a 1064-nm QS-Nd:YAG laser. The laser parameters were 6 mm spot size and 2.5 J/cm2 fluence with multiple passes for 6-10 (median 8) sessions at 2-week intervals. Outcomes were evaluated using photography, the modified Melasma Area and Severity Index (mMASI) score, and patient satisfaction interviews after the last treatment and 1 year after the last treatment...
December 2016: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27293272/a-retrospective-study-on-the-characteristics-of-treating-nevus-of-ota-by-1064-nm-q-switched-neodymium-doped-yttrium-aluminum-garnet-laser
#15
Yanting Liu, Weihui Zeng, Songmei Geng
BACKGROUND: The Q-switched neodymium-doped yttrium aluminum garnet (QS Nd:YAG) laser has a significant effect in treating nevus of Ota, but there is lack of a retrospective study about the characteristics of efficacy. AIMS AND OBJECTIVES: To retrospectively analyze the correlation between the clinical characteristics and efficacy, complications, recurrence of QS Nd:YAG laser in treating nevus of Ota. MATERIALS AND METHODS: One hundred and seventy-one Chinese patients (144 female, 27 male) of nevus of Ota were treated with the 1064-nm QS Nd:YAG laser...
May 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/26963146/clinical-and-histopathologic-assessment-of-facial-melasma-after-low-fluence-q-switched-neodymium-doped-yttrium-aluminium-garnet-laser
#16
Camila Anna Hofbauer Parra, Mariana Figueroa Careta, Neusa Yuriko Sakai Valente, Nuno Eduardo Guimaraes de Sanches Osório, Luis Antonio Ribeiro Torezan
BACKGROUND: Melasma is a frequent and difficult to treat skin disorder. Results of laser therapy are inconsistent. OBJECTIVE: To determine the safety and efficacy of low-fluence Q-switched neodymium-doped yttrium aluminum garnet (QS Nd:YAG) laser for melasma treatment and assess recurrence rates and histopathologic findings before and after treatment. METHODS: Twenty patients were treated with 10 weekly sessions of low-fluence 1064-nm QS Nd:YAG laser at 1-week intervals...
April 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/26865788/novel-treatment-of-hori-s-nevus-a-combination-of-fractional-nonablative-2-940-nm-er-yag-and-low-fluence-1-064-nm-q-switched-nd-yag-laser
#17
Brian Wei Cheng Anthony Tian
OBJECTIVE: To demonstrate a combination laser therapy to treat Hori's nevus. DESIGN: A prospective study. SETTING: A Singapore-based clinic. PARTICIPANTS: Five female patients, aged 30-46 years, with bilateral malar Hori's nevus. MEASUREMENTS: Photographs were taken before treatment and 1 month after laser treatment was completed. These were graded by three independent physicians. The patients were also asked to grade their treatment response subjectively...
October 2015: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/26719647/hypopigmentation-induced-by-frequent-low-fluence-large-spot-size-qs-nd-yag-laser-treatments
#18
Yisheng Wong, Siong See Joyce Lee, Chee Leok Goh
The Q-switched 1064-nm neodymium-doped yttrium aluminum garnet (QS 1064-nm Nd:YAG) laser is increasingly used for nonablative skin rejuvenation or "laser toning" for melasma. Multiple and frequent low-fluence, large-spot-size treatments are used to achieve laser toning, and these treatments are associated with the development of macular hypopigmentation as a complication. We present a case series of three patients who developed guttate hypomelanotic macules on the face after receiving laser toning treatment with QS 1064-nm Nd:YAG...
December 2015: Annals of Dermatology
https://www.readbyqxmd.com/read/26551773/q-switched-660-nm-versus-532-nm-nd-yag-laser-for-the-treatment-for-facial-lentigines-in-asian-patients-a-prospective-randomized-double-blinded-split-face-comparison-pilot-study
#19
RANDOMIZED CONTROLLED TRIAL
Tai Kyung Noh, Bo Young Chung, Un Cheol Yeo, SeoYoun Chang, Mi Woo Lee, Sung Eun Chang
BACKGROUND: Q-switched (QS) 532-nm lasers are widely used to treat solar lentigines. OBJECTIVE: To compare the efficacy and safety of 660-nm and 532-nm QS neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers in the treatment for lentigines in Asians. MATERIALS AND METHODS: The halves of each face (randomly chosen) of 8 Korean Fitzpatrick Skin Type III-IV women with facial solar lentigines were treated with either 660-nm or 532-nm lasers...
December 2015: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/26133780/long-term-evaluation-of-ink-clearance-in-tattoos-with-different-color-intensity-using-the-1064-nm-q-switched-nd-yag-laser
#20
Agata Mankowska, Wojciech Kasprzak, Zygmunt Adamski
OBJECTIVE: The aim of the study was to evaluate the efficacy of tattoo removal treatments using the 1064-nm Q-switched (QS) Nd:YAG laser. BACKGROUND DATA: Today, QS lasers appear to be the most common, effective, and safest methods to treat unwanted markings. MATERIAL AND METHODS: A total of 64 patients with 75 unwanted tattoos were enrolled in the study. Tattoo clearance was evaluated according to the color intensity - concentration of pigment: group I (34) - black; group II (41) - gray...
December 2015: Journal of Cosmetic Dermatology
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