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Laser skin treatment

Andreas M Fichter, Lucas M Ritschl, Luisa K Robitzky, Stefan Wagenpfeil, David A Mitchell, Klaus-Dietrich Wolff, Thomas Mücke
The effects of antithrombotic drugs on random and free flap survival have been investigated in the past, but the experimental and clinical results are not in agreement. A perforator-based critical ischaemia model was used to evaluate the effects of different perioperatively administered pharmaceutical agents on tissue ischaemia and to assess the potential additional haemorheological or vasodilative effects of antithrombotics on flap microcirculation. Combined laser Doppler flowmetry and remission spectroscopy revealed an increase in certain microcirculation parameters in most groups in comparison with saline controls, and these changes correlated with flap survival...
October 21, 2016: Scientific Reports
Jae-Hui Nam, Young-Jun Choi, Jae Yun Lim, Joon Hong Min, Won-Serk Kim
High-intensity focused ultrasound (HIFU) is regarded as an effective skin-lifting device; however, literature regarding treatment of the aging neck and décolletage with HIFU is scarce. Our study aimed to evaluate the efficacy of combination with HIFU and low-fluence Q-switched Nd:YAG (LQSNY) laser on the aging neck and décolletage. Nineteen women were assessed. HIFU at two visits and LQSNY laser at six visits were used to irradiate the neck and chest. At week 16, improvements were rated using the Dedo classification, Fabi/Bolton Chest Wrinkle Scale (FBCWS), and Global Aesthetic Improvement Scales (GAIS)...
October 20, 2016: Lasers in Medical Science
Mi Yu, Jun Young Lee
BACKGROUND: Polydeoxyribonucleotide (PDRN) is an active compound that can promote wound healing. PDRN stimulates wound healing by enhancing angiogenesis and increasing fibroblast growth rates. Laser skin resurfacing is a popular cosmetic procedure for skin rejuvenation. Despite excellent improvement of photo-damaged skin and acne scarring, it is accompanied with drawbacks, such as prolonged erythema and crusting. OBJECTIVE: This study was designed to assess the effect of PDRN on wounds induced by fractional laser resurfacing...
October 20, 2016: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
Ajay Vijayakumar, Rengarajan Baskaran, Bong Kyu Yoo
The objective of this study is to develop a topical bead formulation of tranexamic acid (TA) which can be used concomitantly with laser treatment. The bead formulation of TA (TAB) was successfully prepared by fluidized bed drying method. Physicochemical properties of the TAB were evaluated in terms of chemical stability of TA and differential scanning calorimetry. TA in the bead was stable up to six months at 25 °C and existed as amorphous state. In vitro skin permeation and in vivo skin retention of TA in the beads were significantly higher compared to a commercial product...
October 20, 2016: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
Monique Narciso Alba, Marli Gerenutti, Valquíria Miwa Hanai Yoshida, Denise Grotto
Acne vulgaris treatments usually cause sensitivity, teratogenicity and bacterial resistance. Investigations of others therapeutic techniques, such as phototherapy, is highly relevant. Thus, we compared the effectiveness of two Acne vulgaris treatments in adolescents: peeling with salicylic acid and phototherapy. Teens were randomly divided in: group I, treatment with salicylic acid peels (10 %) and group II, treatment with phototherapy (blue LED and red laser lights). Photographs were taken before and after ten sessions of each treatment, carried out weekly, and compared...
October 20, 2016: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
Yasmeen Jabeen Bhat, Iffat Hassan, Peerzada Sajad, Atiya Yaseen, Syed Mubashir, Saniya Akhter, Roohi Wani
BACKGROUND: Epidermal naevi are benign hamartomatous growths of the skin which are generally asymptomatic with a benign course but are cosmetically disagreeable. Topical treatments such as steroids, calcipotriol, 5 fluorouracil, podophyllin, retinoids and cryotherapy are ineffective and surgical excision results in scar formation. Therapy is often challenging. AIM OF THE STUDY: To study the response of carbon dioxide (CO2) laser in the management of epidermal naevi...
July 2016: Journal of Cutaneous and Aesthetic Surgery
Nathan S Hart, Melinda Fitzgerald
Red-near-infrared light has been used for a range of therapeutic purposes. However, clinical trials of near-infrared laser light for treatment of stroke were abandoned after failing interim futility analyses. Lack of efficacy has been attributed to sub-optimal treatment parameters and low penetrance of light to affected brain regions. Here, we assess penetrance of wavelengths from 450-880 nm in human post-mortem samples, and demonstrate that human skin, skull bone and brain transmits therapeutically relevant quantities of light from external sources at wavelengths above 600nm...
September 2016: Discovery Medicine
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
Benjamin Farahnik, Collin M Blattner, Michael B Mortazie, Benjamin M Perry, William Lear, Dirk M Elston
Hailey-Hailey disease or familial benign chronic pemphigus is a rare blistering dermatosis that is characterized by recurrent erythematous plaques with a predilection for the skin folds. For extensive Hailey-Hailey disease that is recalcitrant to conventional therapy, laser ablation, photodynamic therapy, electron beam radiotherapy, botulinum toxin type A, dermabrasion, glycopyrrolate, and afamelanotide have been reported as useful treatments, but comparative trials are lacking. This review discusses the various treatment modalities for Hailey-Hailey disease and a summary of the evidence for the most recommended treatments...
October 13, 2016: Journal of the American Academy of Dermatology
Sarah Qureshi, Jennifer Y Lin
Aminolevulinic acid (ALA) photodynamic therapy (PDT) is an emerging modality in the treatment of acne. While ablative fractional lasers have been used to enhance drug delivery into the epidermis, recent evidence suggests that non-ablative fractional photothermolysis may also improve uptake of ALA. We explored the use of non-ablative 1550 nm laser as a safe alternative in the delivery of ALA prior to red-light PDT for refractory inflammatory and cystic acne. Subjects referred for treatment of acne refractory to several topical and oral regimens, including isotretinoin, were pre-treated with non-ablative fractional photothermolysis (NAFP)...
October 14, 2016: Lasers in Medical Science
Jonas Kottmann, Julien M Rey, Markus W Sigrist
Diabetes mellitus is a widespread metabolic disease without cure. Great efforts are being made to develop a non-invasive monitoring of the blood glucose level. Various attempts have been made, including a number of non-optical approaches as well as optical techniques involving visible, near- and mid-infrared light. However, no true breakthrough has been achieved so far, i.e., there is no fully non-invasive monitoring device available. Here we present a new study based on mid-infrared spectroscopy and photoacoustic detection...
October 10, 2016: Sensors
Andrew M Read-Fuller, David M Yates, David D Vu, John E Hoopman, Richard A Finn
OBJECTIVE: Facial resurfacing with a CO2 laser has been used for treatment of pathologic lesions and for cosmetic purposes. Postoperative complications and problems after laser resurfacing include infections, acneiform lesions, and pigment changes. This retrospective study describes the most common problems and complications in 105 patients and assesses postoperative pain in 38 patients. STUDY DESIGN: All patients received CO2 laser resurfacing for treatment of malignant/premalignant lesions and had postoperative follow-up to assess problems and complications...
August 23, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Lina I Naga, Tina S Alster
Tattoo art has been around for thousands of years in every culture and is currently flourishing in all age groups, social classes, and occupations. Despite the rising popularity of tattoos, demand for their removal has also increased. While various treatments, including surgical excision, dermabrasion, and chemical destruction have historically been applied, over the past 2 decades, lasers have revolutionized the way tattoos are treated and have become the gold standard of treatment. To achieve optimal cosmetic outcome of treatment, lasers emitting high energies and short pulses are required to adequately destroy tattoo ink...
October 8, 2016: American Journal of Clinical Dermatology
Rui Shi, Xiaoqi Lin, Jingxuan Zhang, Hongtao Jin, Aiping Wang, Jinfeng Wei
Photodynamic therapy (PDT) is a promising antineoplastic modality in the oncology field. We assessed the safety of repeated intravenous administrations of sinoporphyrin, a porphyrin derivative, with and without illumination in rats. Toxicokinetic studies of single and multiple administrations of sinoporphyrin were also carried out. Sprague-Dawley rats were randomly assigned to the dark-toxicity and PDT groups. Animals in the dark toxicity group received an i.v. infusion of sinoporphyrin at 3 doses: 2 mg kg(-1), 6 mg kg(-1), and 18 mg kg(-1)...
September 30, 2016: Photochemical & Photobiological Sciences
Dan Li, Shi-Bin Lin, Biao Cheng
BACKGROUND: For 20 years, intense pulsed light (IPL) technology has been used to treat various medical problems. IPL has since developed rapidly, becoming popular among patients worldwide. Recently, IPL has been used mainly for cosmetic purposes. Researchers are constantly seeking new applications of IPL to meet the increasing needs of patients. OBJECTIVE: This review summarizes the development of IPL devices, discusses the current literature on the clinical application of IPL to increase our understanding of IPL, and provides guidance for broadening its clinical applications...
October 2016: Photomedicine and Laser Surgery
Michele Ammendola, Rosario Sacco, Lucia Butrico, Giuseppe Sammarco, Stefano de Franciscis, Raffaele Serra
Diabetic foot ulcerations may determine minor or major amputation, with a high impact on patients' life expectation and quality of life and on economic burden. Among minor amputations, transmetatarsal amputation (TMA) appears to be the most effective in terms of limb salvage rates and in maintaining foot and ankle biomechanics. In spite of this, TMA needs particular pre- and postoperative management in order to avoid the frequent failure rates. A systematic review was undertaken of studies concerning TMA and its care in diabetic foot gangrene...
October 3, 2016: International Wound Journal
Ngo Bich Nga Nathalie Tran, Fanny Knorr, Wing Cheung Mak, Kwan Yee Cheung, Heike Richter, Martina Meinke, Jürgen Lademann, Alexa Patzelt
Hair follicle research is currently focused on the development of drug-loaded nanocarriers for the targeting of follicular structures in the treatment of skin and hair follicle-related disorders. In the present study, a dual-label nanocarrier system was implemented in which FITC-labeled BSA hydrogel nanocarriers loaded with the model drug and dye TRITC-dextran were applied topically to porcine ear skin. Follicular penetration and the distribution of both dyes corresponding to the nanocarriers and the model drug in the follicular ducts subsequent to administration to the skin were investigated using confocal laser scanning microscopy...
September 29, 2016: European Journal of Pharmaceutics and Biopharmaceutics
Phoebe Star, Carolyn Choy, Kurosh Parsi
Minocycline-induced pigmentation (MIP) is an uncommon but well-described adverse effect of oral minocycline treatment. MIP is clinically and histopathologically distinct from post-sclerotherapy pigmentation. We report a case of a patient presenting with blackened skin overlying veins recently treated with endovenous laser and foam sclerotherapy. The patient was a 44-year-old male with systemic sclerosis who commenced minocycline for the treatment of rosacea 5 months prior. Histological examination of the discolored tissue and underlying vein revealed hemosiderin deposition in the dermis and pigmented macrophages within the sub-endothelial layer of the vein wall with a staining pattern consistent with MIP...
September 28, 2016: Journal of Cutaneous Pathology
Tae-Rin Kwon, Eun Ja Choi, Chang Taek Oh, Dong-Ho Bak, Song-I Im, Eun Jung Ko, Hyuck Ki Hong, Yeon Shik Choi, Joon Seok, Sun Young Choi, Gun Young Ahn, Beom Joon Kim
BACKGROUND AND OBJECTIVES: Many studies have investigated the application of micro-insulated needles with radio frequency (RF) to treat acne in humans; however, the use of a micro-insulated needle RF applicator has not yet been studied in an animal model. The purpose of this study was to evaluate the effectiveness of a micro-insulated needle RF applicator in a rabbit ear acne (REA) model. STUDY DESIGN/MATERIALS AND METHODS: In this study, we investigated the effect of selectively destroying the sebaceous glands using a micro-insulated needle RF applicator on the formation of comedones induced by application of 50% oleic acid and intradermal injection of P...
September 29, 2016: Lasers in Surgery and Medicine
Jelena Barbaric, Rachel Abbott, Pawel Posadzki, Mate Car, Laura H Gunn, Alison M Layton, Azeem Majeed, Josip Car
BACKGROUND: Acne vulgaris is a very common skin problem that presents with blackheads, whiteheads, and inflamed spots. It frequently results in physical scarring and may cause psychological distress. The use of oral and topical treatments can be limited in some people due to ineffectiveness, inconvenience, poor tolerability or side-effects. Some studies have suggested promising results for light therapies. OBJECTIVES: To explore the effects of light treatment of different wavelengths for acne...
September 27, 2016: Cochrane Database of Systematic Reviews
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