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https://www.readbyqxmd.com/read/28917451/postinflammatory-hyperpigmentation-a-comprehensive-overview-epidemiology-pathogenesis-clinical-presentation-and-noninvasive-assessment-technique
#1
REVIEW
Narumol Silpa-Archa, Indermeet Kohli, Suteeraporn Chaowattanapanit, Henry W Lim, Iltefat Hamzavi
Postinflammatory hyperpigmentation (PIH) commonly occurs after various endogenous and exogenous stimuli, especially in dark-skinned individuals. PIH is one of the most common complications of procedures performed using laser and other light sources. The severity of PIH is determined by the inherent skin color, degree and depth of inflammation, degree of dermoepidermal junction disruption, inflammatory conditions, and the stability of melanocytes, leading to epidermal and dermal melanin pigment deposition...
October 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28915292/news-views-and-reviews-a-tool-for-my-laser-practice-i-simply-can-t-do-without-shining-a-light-on-my-favorite-light-source
#2
Eric F Bernstein
With laser surgery, what you see is what you get. Visualizing the target for treatment, be it a port-wine stain, a cluster of spider veins, a tattoo or freckles, or simply photodamaged skin requires seeing through surface reflections, dry skin, and often quite dark laser goggles. The tool that has been indispensable to me in my practice is the Syris v900L polarizing and magnifying headlamp. This indispensable tool makes laser treatment more precise, effective, and easier by truly shining a light on the subject of a laser treatment...
September 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28915290/lifting-the-lower-face-with-an-absorbable-polydioxanone-pdo-thread
#3
Kian Karimi, Alexandra Reivitis
Traditional rejuvenation techniques include chemical peels, rhytidectomy of the skin, laser resurfacing, injection of dermal fillers and neurotoxins, and invasive surgical procedures. Patients with brow ptosis, jowl formation, and deepening nasolabial folds currently seek antiaging procedures with no incisions and minimal downtime such as thread-lifting with barbed sutures. The present report describes a case in which polydioxanone threads were used to lift the lower third of a patient's face. Fillers were used to supplement the results achieved by the thread lift because often, when tissue has been lifted, volume deficits are revealed, which can be corrected with dermal fillers...
September 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28915288/successful-treatment-of-keloid-with-fractionated-carbon-dioxide-co2-laser-and-laser-assisted-drug-delivery-of-triamcinolone-acetonide-ointment-in-an-african-american-man
#4
Ekaterina Kraeva, Derek Ho, Jared Jagdeo
Keloids are fibrous growths that occur as a result of abnormal response to dermal injury. Keloids are cosmetically disfiguring and may impair function, often resulting in decreased patient quality-of-life. Treatment of keloids remains challenging, and rate of recurrence is high. We present a case of a 39-year-old African-American man (Fitzpatrick VI) with a 10-year history of keloid, who was successfully treated with eight sessions of fractionated carbon dioxide (CO2) laser immediately followed by laser-assisted drug delivery (LADD) of topical triamcinolone acetonide (TAC) ointment and review the medical literature on fractionated CO2 laser treatment of keloids...
September 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28912936/combination-of-q-switched-nd-yag-and-fractional-erbium-yag-lasers-in-treatment-of-melasma-a-randomized-controlled-clinical-trial
#5
Shiva Alavi, Ehsan Abolhasani, Sharin Asadi, Mohammadali Nilforoushzadeh
Introduction: Ablative and nonablative lasers have been used to treat melasma. We aimed to assess and compare the combining Q-switched Nd:YAG laser (QSNYL) and fractional erbium:YAG laser (FEYL) with QSNYL alone in treatment of melasma. Methods: This randomized controlled clinical trial was performed in our Research Center during 2013-2014. Women with melasma and without a history of keloid formation, hypersensitivity to hydroquinone, or pigmentary changes due to laser therapy were randomly allocated to receive four sessions of either QSNYL-FEYL combination or QSNYL alone...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/28902036/clinical-and-histological-evaluations-of-enlarged-facial-skin-pores-after-low-energy-level-treatments-with-fractional-carbon-dioxide-laser-in-korean-patients
#6
Hyuck Hoon Kwon, Sun Chul Choi, Won-Yong Lee, Jae Yoon Jung, Gyeong-Hun Park
BACKGROUND: Enlarged facial pores can be an early manifestation of skin aging and they are a common aesthetic concern for Asians. However, studies of improving the appearance of enlarged pores have been limited. OBJECTIVE: The authors aimed to study the application of CO2 fractional laser treatment in patients with enlarged facial pores. METHODS: A total of 32 patients with dilated facial pores completed 3 consecutive sessions of low energy level treatments with a fractional CO2 laser at 4-week intervals...
September 4, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28902034/safety-and-efficacy-of-a-noninvasive-1-060-nm-diode-laser-for-fat-reduction-of-the-flanks
#7
Bruce Katz, Sean Doherty
BACKGROUND: Preliminary reports indicate a hyperthermic diode laser treatment could be a safe and effective method for noninvasive fat reduction using the 1,060-nm wavelength. This wavelength penetrates the skin to heat subcutaneous adipocytes causing cellular disruption, leaving extracellular lipids, and cellular debris to be evacuated naturally by the body. OBJECTIVE: To evaluate the safety and effectiveness of this modality for noninvasive fat reduction of the flanks...
September 4, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28900751/effect-of-wavelength-and-beam-width-on-penetration-in-light-tissue-interaction-using-computational-methods
#8
Caerwyn Ash, Michael Dubec, Kelvin Donne, Tim Bashford
Penetration depth of ultraviolet, visible light and infrared radiation in biological tissue has not previously been adequately measured. Risk assessment of typical intense pulsed light and laser intensities, spectral characteristics and the subsequent chemical, physiological and psychological effects of such outputs on vital organs as consequence of inappropriate output use are examined. This technical note focuses on wavelength, illumination geometry and skin tone and their effect on the energy density (fluence) distribution within tissue...
September 12, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28895756/early-treatment-using-fractional-co2-laser-before-skin-suture-during-scar-revision-surgery-in-asians
#9
Feiya Du, Yusheng Yu, Zhiqin Zhou, Liujia Wang, Shusen Zheng
Fractional CO2 laser is one of the most effective treatment options used to resurface scars; However, most previous studies have been performed on mature scars at least 2 months after surgery. Recent studies have emphasized the importance of early treatment to reduce scar formation. In the present study, we described our experience with fractional CO2 laser intervention before skin suture during scar revision surgery in Asians, and found the treatment was safe and effective.
September 12, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28888300/heterotopic-ossification-and-hypertrophic-scars
#10
REVIEW
Shailesh Agarwal, Michael Sorkin, Benjamin Levi
Burns and trauma cause superficial and deep soft tissue wounds that cannot heal to the preinjury state. Healing requires cell proliferation and differentiation into the injured tissue type, laying down extracellular matrix, often as collagens. Heterotopic ossification causes severe pain, nonhealing wounds, and restricted range of motion. Treatment includes radiation therapy, nonsteroidal anti-inflammatory drugs, bisphosphonates, and possibly surgical excision and prophylactic measures. Hypertrophic scars, nonosseous lesions caused by excessive collagen deposition, are often painful, functionally limiting, and aesthetically displeasing...
October 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/28884244/lasers-and-intense-pulsed-light-ipl-association-with-cancerous-lesions
#11
Caerwyn Ash, Godfrey Town, Rebecca Whittall, Louise Tooze, Jaymie Phillips
The development and use of light and lasers for medical and cosmetic procedures has increased exponentially over the past decade. This review article focuses on the incidence of reported cases of skin cancer post laser or IPL treatment. The existing evidence base of over 25 years of laser and IPL use to date has not raised any concerns regarding its long-term safety with only a few anecdotal cases of melanoma post treatment over two decades of use; therefore, there is no evidence to suggest that there is a credible cancer risk...
September 7, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28873104/management-of-trauma-and-burn-scars-the-dermatologist-s-role-in-expanding-patient-access-to-care
#12
Nathanial R Miletta, Matthias B Donelan, Chad M Hivnor
Recent advances in laser surgery and our understanding of wound healing have ushered in a new era of trauma and burn scar management. Traditional therapy has centered around scar excision followed by primary closure or tissue replacement with flaps and grafts. This approach represents a perpetuation of the common fallacy that extensive scar improvement requires extensive surgical intervention. Laser surgery in conjunction with pharmacotherapy and minor tissue-conserving surgery produces well-healed and remodeled existing tissue that provides the most natural appearance and function of the skin...
July 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28871936/xanthoma-like-skin-changes-in-an-elderly-woman-with-a-normal-lipid-profile
#13
Piotr Nockowski, Zdzisław Woźniak, Adam Reich, Joanna Maj
Dear Editor, An 83-year-old woman developed yellow-brownish infiltrates, nodules, and tumors mimicking xanthomas, mostly involving the periorbital and chest area within three months (Figure 1). She had no abnormalities in serum cholesterol or triglycerides levels. A detailed laboratory analysis revealed the presence of mild monoclonal gammopathy with a presence of immunoglobulin G (IgG) kappa light chains; however, according to hematologist consultation, it did not require medical intervention. Imaging assessment and ultrasound examination did not show any specific involvement of internal organs...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28871935/topical-imiquimod-is-an-effective-and-safe-drug-for-molluscum-contagiosum-in-children
#14
George Badavanis, Efstathia Pasmatzi, Alexandra Monastirli, Sophia Georgiou, Dionysios Tsambaos
Dear Editor, Molluscum contagiosum (MC) is a very common skin infection caused by a molluscipox virus gene of the poxvirus family. It usually occurs in young children, sexually active adults, and immunocompromised individuals. The typical clinical picture of this infection is characterized by asymptomatic flesh-colored, single or multiple papules, measuring 2-6 mm in diameter with a central umbilication that occur on the skin and the mucous membranes. In adults, the skin lesions are predominantly located in the genital region, whereas in children they are found on the trunk, the extremities, and the face...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28866729/experimental-investigation-on-the-vascular-thermal-response-to-near-infrared-laser-pulses
#15
Dong Li, Bin Chen, Wenjuan Wu, Zhaoxia Ying
Port wine stains (PWS) are congenital vascular malformations that progressively darken and thicken with age. To improve the effect of laser therapy in clinical practice, thermal response of blood vessel to a 1064 nm Nd:YAG laser with controlled energy doses and pulse durations was evaluated using the dorsal skin chamber model. A total of 137 vessels with 30-300 μm diameters were selected from the dorsal skin of the mouse to match those capillaries in port wine stains. Experimental results showed that the thermal response of blood vessels to 1064 nm laser irradiation can be classified as follows: vessel dilation, coagulation, constriction with decreased diameter, complete constriction, hemorrhage, and collagen damage with increasing laser radiant exposure...
September 2, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28859030/treatment-of-refractory-infantile-hemangiomas-and-pulmonary-hypertension-with-sirolimus-in-a-pediatric-patient
#16
Kelley K Hutchins, Robert D Ross, Daisuke Kobayashi, Alissa Martin, Madhvi Rajpurkar
Infantile hemangioma is a benign vascular neoplasm that spontaneously involutes over time. Management, when needed, consists of medications, laser treatment and surgical excision. We describe a 3-year-old girl who presented shortly after birth with diffuse cutaneous hemangiomas, hepatosplenomegaly with liver lesions, anemia, and acute heart failure. She was diagnosed with hepatic and cutaneous infantile hemangioma based on skin biopsy. She developed progressive pulmonary hypertension with numerous pulmonary nodules suspicious for pulmonary arteriovenous malformations...
August 30, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28856046/visualization-of-laser-tattoo-removal-treatment-effects-in-a-mouse-model-by-two-photon-microscopy
#17
Won Hyuk Jang, Yeoreum Yoon, Wonjoong Kim, Soonjae Kwon, Seunghun Lee, Duke Song, Jong Woon Choi, Ki Hean Kim
Laser tattoo removal is an effective method of eliminating tattoo particles in the skin. However, laser treatment cannot always remove the unwanted tattoo completely, and there are risks of either temporary or permanent side effects. Studies using preclinical animal models could provide detailed information on the effects of laser treatment in the skin, and might help to minimize side effects in clinical practices. In this study, two-photon microscopy (TPM) was used to visualize the laser treatment effects on tattoo particles in both phantom specimens and in vivo mouse models...
August 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28854828/laser-assisted-indocyanine-green-angiography-in-implant-based-immediate-breast-reconstruction-a-retrospective-study
#18
Niels Hammer-Hansen, Alexander Andersen Juhl, Tine Engberg Damsgaard
OBJECTIVE: Necrosis in implant-based immediate breast reconstruction is a feared complication. Accurate evaluation of mastectomy skin flaps per-operatively is necessary to decrease this risk. The present study is the first in Scandinavia to review the effects of perioperative evaluation with laser-assisted indocyanine green fluorescence angiography (LA-ICGA). METHOD: A retrospective review was performed using data from the electronic patient record at the Department of Plastic and Breast Surgery at Aarhus University Hospital in Denmark on all patients who underwent implant-based skin-sparing immediate breast reconstruction with ADM in the time period March 2012 to October 2015...
August 30, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28834156/super-pulse-co2-laser-therapy-for-benign-eyelid-tumors
#19
Jing Zhang, Jueni Duan, Lan Gong
BACKGROUND: Benign eyelid tumors occur commonly in daily outpatient services. OBJECTIVES: The aim of this study was to evaluate the treatment of benign eyelid lesions with a super pulse CO2 laser as an alternative to surgical excision. METHODS: This retrospective clinical study included 80 patients with 99 benign eyelid lesions treated with super pulse CO2 laser photocoagulation. The following areas were involved: the upper eyelid in 38 cases, the lower eyelid in 39 cases, and the angulus oculi in seven cases (the eyelid margin was included in 18 cases)...
August 17, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28833900/treatment-of-oral-lichen-planus-using-308-nm-excimer-laser
#20
Wei-Bing Liu, Li-Wei Sun, Hua Yang, Yan-Fei Wang
Oral lichen planus (OLP) is a chronic inflammatory disease, has prolonged courses, repeated attacks and resistance to treatment. The traditional narrow spectrum UVB treatment has an established efficacy on skin lichen planus, and high safety. However, most of ultraviolet phototherapy devices have a huge volume, thereby cannot be used in the treatment of OLP. Lymphocytic infiltration is evident in the lesions of lichen planus, and the direct irradiation of 308-nm excimer laser can induce apoptosis of the T lymphocytes in skin lesions, thereby has a unique therapeutic effect on the diseases involving T lymphocytes...
August 23, 2017: Dermatologic Therapy
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