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postinflammatory hyperpigmentation

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https://www.readbyqxmd.com/read/28792112/a-pilot-study-of-treatment-of-striae-distensae-with-variable-square-pulse-erbium-yag-laser-resurfacing
#1
Rungsima Wanitphakdeedecha, Walailak Meeprathom, Woraphong Manuskiatti
BACKGROUND: Striae distensae (SD) are a frequent skin condition for which treatment remains a challenge. Various laser treatments have been employed to remove the epidermis and cause dermal wound and heating with subsequent dermal collagen remodeling. OBJECTIVE: To determine the efficacy and safety of a variable square pulse Erbium: YAG (VSP Er:YAG) laser for the treatment of striae in skin phototypes III-IV. METHODS: Twenty-one women with SD were treated monthly for 2 months with VSP Er:YAG laser resurfacing using a 7-mm spot size...
August 9, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28790335/involvement-of-transient-receptor-potential-cation-channel-member-a1-activation-in-the-irritation-and-pain-response-elicited-by-skin-lightening-reagent-hydroquinone
#2
Yan Tai, Chuan Wang, Zhihua Wang, Yi Liang, Junying Du, Dongwei He, Xiaoyan Fan, Sven-Eric Jordt, Boyi Liu
Hydroquinone (HQ) is one of the most frequently used and effective skin-lightening products to treat skin hyperpigmentation disorders, including postinflammatory hyperpigmentation, melasma and solar lentigines. HQ is also widely used in cosmetic products for skin whitening. However, HQ treatment can evoke substantial skin irritation, a side effect that remains poorly understood. Here we demonstrate that HQ is an activator of the peripheral irritant receptor transient receptor potential (TRP) cation channel member A1 (TRPA1)...
August 8, 2017: Scientific Reports
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
#3
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/28670354/psychosocial-impact-of-postinflammatory-hyperpigmentation-in-patients-with-acne-vulgaris
#4
Kavita Darji, Reena Varade, Daniel West, Eric S Armbrecht, Mary A Guo
Background: Acne vulgaris is a common, often socially distressing skin condition primarily seen in young adults. Quality of life studies have shown that people with acne are more introverted with increased social setting anxiety compared to a control group. Unfortunately, patients with acne may have residual postinflammatory hyperpigmentation, amplifying impaired psychosocial effects. Objective: To quantify the impact of postinflammatory hyperpigmentation in patients with acne using a psychometric scale. Design: A clinic-based survey was conducted among US adults with facial acne and postinflammatory hyperpigmentation...
May 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28664196/postinflammatory-hyperpigmentation-after-human-cold-pain-testing
#5
Melissa J Wolz, Katelyn E Sadler, Caela C Long, Daniel S Brenner, Brian S Kim, Robert W Gereau, Benedict J Kolber
Changes in cold temperature sensitivity are often associated with chronic pain conditions. Progress in understanding the neurobiological mechanism underlying these changes and resulting development of effective therapies has been slowed by the accessibility and affordability of devices used to measure thermal sensitivity in humans. To address this gap, we developed an inexpensive method to measure cold pain thresholds in healthy adult volunteers using dry ice and a thermode. However, early in preliminary testing, a subject presented with epidermal postinflammatory hyperpigmentation that lasted for >200 days...
August 2016: Pain Reports (Baltimore, Md.)
https://www.readbyqxmd.com/read/28654588/assessment-of-the-efficacy-of-cryolipolysis-on-saddlebags-a-prospective-study-of-53-patients
#6
Lucille Adjadj, Mounia SidAhmed-Mezi, Marine Mondoloni, Jean Paul Meningaud, Barbara Hersant
BACKGROUND: Cryolipolysis is a noninvasive subcutaneous fat removal technique. Its efficacy has been demonstrated on various fatty areas but not yet on saddlebags. The main objective of this study was to demonstrate the efficacy, patient tolerance, and safety of cryolipolysis on the saddlebags. METHODS: This prospective study enrolled 53 patients with saddlebags. Patients with a history of liposuction or other surgical procedure on the saddlebag area and those on diet pills were excluded...
July 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28492049/a-review-of-laser-and-light-therapy-in-melasma
#7
REVIEW
M K Trivedi, F C Yang, B K Cho
Melasma is a dysregulation of the homeostatic mechanisms that control skin pigmentation and excess pigment is produced. Traditional treatment approaches with topical medications and chemical peels are commonly used but due to the refractory and recurrent nature of melasma, patients often seek alternative treatment strategies such as laser and light therapy. Several types of laser and light therapy have been studied in the treatment of melasma. Intense pulsed light, low fluence Q-switched lasers, and non-ablative fractionated lasers are the most common lasers and light treatments that are currently performed...
March 2017: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28349023/fractional-carbon-dioxide-laser-and-its-combination-with-subcision-in-improving-atrophic-acne-scars
#8
Mohammad Ali Nilforoushzadeh, Gita Faghihi, Fariba Jaffary, Elaheh Haftbaradaran, Sayed Mohsen Hoseini, Nafiseh Mazaheri
BACKGROUND: Acne is a very common skin disease in which scars are seen in 95% of the patients. Although numerous treatments have been recommended, researchers are still searching for a single modality to treat the complication due to its variety in shape and depth. We compared the effects of fractional carbon dioxide (CO2) laser alone and in combination with subcision in the treatment of atrophic acne scars. MATERIALS AND METHODS: This clinical trial study was performed in Skin Diseases and Leishmaniasis Research Center (Isfahan, Iran) during 2011-2012...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28328709/the-clinical-and-histological-effect-of-a-low-fluence-q-switched-1-064-nm-neodymium-yttrium-aluminum-garnet-laser-for-the-treatment-of-melasma-and-solar-lentigo-in-asians-prospective-randomized-and-split-face-comparative-study
#9
Chikako Kaminaka, Fukumi Furukawa, Yuki Yamamoto
BACKGROUND: The low-fluence Q-switched 1,064-nm neodymium:yttrium-aluminum-garnet laser (QSNYL) is popular for melasma treatment among Asians. OBJECTIVE: This study was to evaluate the clinical and histological effects of the low-fluence QSNYL for treatment of melasma and solar lentigo. MATERIALS AND METHODS: In this randomized split-face clinical study, 22 patients with melasma or solar lentigo received low-fluence QSNYL weekly for 10 sessions on one cheek...
March 21, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28274355/topical-treatments-for-acne
#10
Marita Kosmadaki, Andreas Katsambas
Topical drugs have been used successfully to treat acne for decades. This review discusses the use, efficacy, and safety of options available via prescription. Topical antibiotics, dapsone, benzyl peroxide, azelaic acid, and topical retinoids are included. Topical antibiotics should not be used as monotherapy but rather be combined with other agents to avoid resistant Propionibacterium acnes strains. Benzoyl peroxide is effective in preventing bacteria resistance. Topical retinoids address primarily the comedonal but also the inflammatory lesions of acne...
March 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28216035/sun-protective-behaviors-in-patients-with-cutaneous-hyperpigmentation-a-cross-sectional-study
#11
Mayra B C Maymone, Hind H Neamah, Stephen A Wirya, Nicole M Patzelt, Pedro Q Zancanaro, Neelam A Vashi
BACKGROUND: Disorders of hyperpigmentation are seen commonly in clinical practice. Despite numerous studies investigating sun-protective habits among healthy persons, little is known about these behaviors within patient populations with hyperpigmentation disorders. OBJECTIVE: We sought to examine photo-protective behaviors and their associations in individuals with disorders of hyperpigmentation. METHODS: This cross-sectional study was conducted with 404 adults who complained of cutaneous hyperpigmentation...
May 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28114204/treatment-of-postinflammatory-hyperpigmentation-with-a-combination-of-glycolic-acid-peels-and-a-topical-regimen-in-dark-skinned-patients-a-comparative-study
#12
RANDOMIZED CONTROLLED TRIAL
Rashmi Sarkar, Nisha V Parmar, Sheilly Kapoor
BACKGROUND: Facial postinflammatory hyperpigmentation (PIH) is challenging to manage in patients with skin of color because of the risk of subsequent treatment-related hyperpigmentation. OBJECTIVE: To evaluate the safety and efficacy of combining glycolic acid (GA) peels with a modified Kligman formula (MKF) containing hydroquinone 2%, tretinoin 0.05%, and hydrocortisone 1% for the treatment of facial PIH in Indian patients. METHODS: Thirty Indian patients (Fitzpatrick skin Types III-V) with facial PIH were randomly assigned to 2 groups of 15 each...
April 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27976510/evaluation-of-salicylic-acid-peeling-in-comparison-with-topical-tretinoin-in-the-treatment-of-postinflammatory-hyperpigmentation
#13
Basma Morad Mohamed Ali, Shereen Farouk Gheida, Nageh Ahmed El Mahdy, Shery Nashaat Sadek
BACKGROUND: Postinflammatory hyperpigmentation (PIH) is an acquired hyperpigmentation that involves areas of prior cutaneous inflammation. In addition to prevention, there are a variety of medications and procedures used to treat PIH. AIM OF THE WORK: The aim of this work was to evaluate the efficacy, tolerability, and safety of salicylic acid peeling in comparison with topical tretinoin in the treatment of PIH. PATIENTS AND METHODS: This study included forty-five patients with PIH lesions...
December 15, 2016: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27973642/laser-treatments-for-postinflammatory-hyperpigmentation-a-systematic-review
#14
Oma Agbai, Iltefat Hamzavi, Jared Jagdeo
Importance: Lasers are gaining interest as a treatment option for postinflammatory hyperpigmentation (PIH) but can pose a clinical dilemma given the risk for laser-induced or exacerbated PIH. Objective: To assess the clinical evidence for the use of lasers in the treatment of PIH. Evidence Review: A systematic review was performed by searching PubMed databases from January 1, 1990, through May 31, 2016. Included studies involved laser treatment for PIH with the degree of pigmentation as a measure of outcome...
December 14, 2016: JAMA Dermatology
https://www.readbyqxmd.com/read/27918005/a-review-of-melasma-treatment-focusing-on-laser-and-light-devices
#15
REVIEW
Janet Y Li, Elizabeth Rc Geddes, Deanne M Robinson, Paul M Friedman
Melasma is a pigmentary disorder of unclear etiology with numerous treatment options and high recurrence rates. Laser and light therapies may be utilized cautiously as second- or third-line options for recalcitrant melasma, but low-energy settings are preferred due to the risk of postinflammatory hyperpigmentation and melasma stimulation. Commonly used lasers include the low-fluence 1064-nm Q-switched neodymium-doped yttrium aluminum garnet laser, nonablative fractionated lasers, and intense pulsed light. Strict sun protection, concomitant use of bleaching agents, and maintenance treatments are necessary...
December 2016: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/27918004/what-devices-to-use-or-not-use-in-skin-of-color
#16
Murad Alam
Lasers and light sources, as well as other energy devices, including radiofrequency, ultrasound, and cold-based therapies, can be used for treatment of aging, dyschromic, or texturally uneven skin. In patients with ethnic skin (ie, skin of color), energy devices are used more cautiously to avoid adverse events. The most common and concerning adverse event is postinflammatory hyperpigmentation. Lower fluence, longer pulse durations, and careful device selection can mitigate the risk of scarring and pigmentary abnormality...
December 2016: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/27900835/treatment-of-cutaneous-larva-migrans-with-a-single-session-of-carbon-dioxide-laser-a-study-of-ten-cases-in-the-philippines
#17
Livia Francine Soriano, Miriam Emily Piansay-Soriano
BACKGROUND: Cutaneous larva migrans (CLM) has a detrimental effect on patients' emotional and physical quality of life. Due to local unavailability of gold standard oral treatments for CLM, carbon dioxide laser was attempted. We present a case series where a single session of carbon dioxide laser treatment was associated with cessation of signs and symptoms of CLM. AIMS: The aim of this study was to assess the efficacy of a single session of carbon dioxide laser in the treatment of CLM...
March 2017: Journal of Cosmetic Dermatology
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
#18
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...
November 15, 2016: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/27770491/an-efficacy-and-safety-of-nanofractional-radiofrequency-for-the-treatment-of-striae-alba
#19
Napatthaorn Pongsrihadulchai, Thep Chalermchai, Suwirakorn Ophaswongse, Suriya Pongsawat, Montree Udompataikul
BACKGROUND: Striae distensae (SD) is a form of dermal scar. A number of treatments have been proposed, but they usually have unsatisfactory result especially in striae alba. Recently, nanofractional RF has been developed. Its mechanism of action is to stimulate dermal remodeling and epidermal re-epithelization. AIM: To evaluate the efficacy and safety of nanofractional RF in the treatment of striae alba. PATIENTS/METHODS: This is an experimental, assessor-blinded, before-after study...
March 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27766668/two-histopathological-patterns-of-postinflammatory-hyperpigmentation-epidermal-and-dermal
#20
Ji-Youn Park, Ji-Hye Park, Sang Jin Kim, Ji Eun Kwon, Hee Young Kang, Eun-So Lee, You Chan Kim
BACKGROUND: Postinflammatory hyperpigmentation (PIH) commonly occurs, but the histopathological features are not well characterized. METHODS: A total of 21 PIH patients' medical charts were reviewed. Punch biopsies from lesional and perilesional normal skin were performed. Sections were stained with hematoxylin-eosin, Fontana-Masson, NKI/beteb, microphthalmia-associated transcription factor (MITF), CD68, c-kit, factor XIIIa, MMP-2 and MMP-9. RESULTS: Fontana-Masson-stained sections suggested two obvious PIH groups: epidermal (13 cases) and dermal (8 cases) pigmentation...
February 2017: Journal of Cutaneous Pathology
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