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Laser in dermatology

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https://www.readbyqxmd.com/read/28328287/photobiomodulation-with-non-thermal-lasers-mechanisms-of-action-and-therapeutic-uses-in-dermatology-and-aesthetic-medicine
#1
Mark Nestor, Anneke Andriessen, Brian Berman, Bruce E Katz, Dore Gilbert, David J Goldberg, Michael H Gold, Robert S Kirsner, Paul Z Lorenc
BACKGROUND: Non-thermal laser therapy in dermatology, is a growing field in medical technology by which therapeutic effects are achieved by exposing tissues to specific wavelengths of light. OBJECTIVES: The purpose of this review was to gain a better understanding of the science behind non-thermal laser and the evidence supporting its use in dermatology. METHODS: A group of dermatologists and surgeons recently convened to review the evidence supporting the use of non-thermal laser for body sculpting, improving the appearance of cellulite, and treating onychomycosis...
February 17, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28288463/guide-to-treatment-of-tattoo-complications-and-tattoo-removal
#2
Jørgen Serup, Wolfgang Bäumler
Clinicians in the fields of general medicine, dermatology, and plastic surgery are in their work now and then confronted with tattoo complications. Recognizing the rather few important diagnostic groups and urgencies, the medical 'decision tree' of treatment becomes quite simple. Acute conditions are dominated by bacterial infections needing antibiotic treatment. Systemic infection is a matter of urgency and requires intravenous treatment in a hospital without delay to prevent septic shock. Inflammatory reactions are a real challenge...
2017: Current Problems in Dermatology
https://www.readbyqxmd.com/read/28278460/optoacoustic-dermoscopy-of-the-human-skin-tuning-excitation-energy-for-optimal-detection-bandwidth-with-fast-and-deep-imaging-in-vivo
#3
Mathias Schwarz, Dominik Soliman, Murad Omar, Andreas Buehler, Saak Ovsepyan, Juan Aguirre, Vasilis Ntziachristos
Optoacoustic (photoacoustic) dermoscopy offers two principal advantages over conventional optical imaging applied in dermatology. First, it yields high-resolution cross-sectional images of the skin at depths not accessible to other non-invasive optical imaging methods. Second, by resolving absorption spectra at multiple wavelengths, it enables label-free three-dimensional visualization of morphological and functional features. However, the relation of pulse energy to generated bandwidth and imaging depth remains poorly defined...
March 1, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28270308/tattoos-very-popular-not-so-innocent
#4
REVIEW
María Daniela Hermida, Hugo Néstor Cabrera
Tattooing is a popular practice worldwide. Its origin dates back to the year 5000 BCE with a frozen mummy and travels across time through diverse cultures and places until it reaches the modern occidental world. Inks and materials used for tattooing are poorly controlled and carry potential risks of skin reactions. The procedure itself is also not innocuous. In this review, different types of tattoos are mentioned and associated dermatologic conditions are discussed. Unfortunately, treatment and removal procedures are often poor in effectiveness and lead to unwanted results...
2017: Skinmed
https://www.readbyqxmd.com/read/28163981/current-advances-in-5-aminolevulinic-acid-mediated-photodynamic-therapy
#5
Connor Thunshelle, Rui Yin, Qiquan Chen, Michael R Hamblin
Kennedy and Pottier discovered that photodynamic therapy (PDT) could be carried out using a procedure consisting of topical application of the porphyrin-precursor, 5-aminolevulinic acid (ALA) to the skin, followed after some time by illumination with various light parameters in the 1980s. Since then, ALA-PDT has expanded enormously and now covers most aspects of dermatological disease. The purpose of this review is to discuss a range of ingenious strategies that investigators have devised for improving the overall outcome (higher efficiency and lower side effects) of ALA-PDT...
September 2016: Current Dermatology Reports
https://www.readbyqxmd.com/read/28138959/growing-trend-of-tattooing-and-its-complications-in-nigeria
#6
REVIEW
Olusola O Ayanlowo, Shakirat A Gold-Olufadi, Ayesha O Akinkugbe, Erere Otrofanowei, Charles N Nga, Yetunde M Olumide
Tattoo, a Polynesian word meaning 'to mark', is a form of body modification done by inserting indelible ink into the dermis to change its pigmentation. Tattoos are done for social, cultural, and religious purposes. It has been in existence since the 18th century and was associated with sailors, lower class individuals, and criminals. However, since the late 20th century, tattooing has undergone a redefinition and shifted to an acceptable form of expression all over the world, including Nigeria, cutting across almost all age groups and socioeconomic class...
January 31, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28119443/measuring-physical-stigmata-of-niacin-associated-skin-toxicity-by-colorimetry-white-light-spectroscopy-laser-doppler-flowmetry-and-thermometry-in-combination-with-symptom-perception-scoring-methods-to-aid-development-of-niacin-mimetics
#7
Richard L Dunbar, Harsh Goel, Sony Tuteja, Wen-Liang Song, Grace Nathanson, Zeeshan Babar, Dusanka Lalic, Joel M Gelfand, Daniel J Rader, Gary L Grove
Though cardioprotective, niacin monotherapy is limited by unpleasant cutaneous symptoms mimicking dermatitis: Niacin-Associated Skin Toxicity (NASTy). Niacin is prototypical of several emerging drugs suffering off-target rubefacient properties, whereby agonizing the GPR109A receptor on cutaneous immune cells provokes vasodilation, prompting skin plethora and rubor, as well as dolor, tumor, and calor, and systemically, heat loss, frigor, chills, and rigors. Typically, NASTy effects are described by subjective, patient-reported perception, at best semi-quantitative and bias-prone...
January 23, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28107576/non-invasive-anaesthetic-methods-for-dermatological-laser-procedures-a-systematic-review
#8
REVIEW
K Greveling, E P Prens, L Liu, M B A van Doorn
Pain is a common side-effect of dermatological laser procedures. Non-invasive anaesthetic drugs and anaesthetic procedures can be used to provide pain relief and increase patient satisfaction and treatment efficacy. However, it remains unclear which method provides the best pain relief. The objective of this systematic review was therefore to assess the efficacy and safety of non-invasive anaesthetic methods during dermatological laser procedures. A systematic literature search was conducted. Randomized and non-randomized controlled clinical trials (RCTs and CCTs) were included...
January 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28095565/successful-treatment-of-rhinophyma-with-fractionated-carbon-dioxide-co2-laser-in-an-african-american-man-case-report-and-review-of-literature-of-fractionated-co2-laser-treatment-of-rhinophyma
#9
Ekaterina Kraeva, Derek Ho, Jared Jagdeo
Rhinophyma, a late complication of rosacea (phymatous subtype), is a chronic, progressive dermatological condition. The classic pre- sentation of rhinophyma is nodular, thickened skin over the distal nose, and is often accompanied by underlying erythema secondary to in ammation. Due to the unpleasant aesthetic and dis guring appearance, rhinophyma may be associated with a signi cant nega- tive psychosocial impact, resulting in decreased patient quality-of-life. Treatment of rhinophyma is challenging as topical and systemic pharmacotherapies have shown limited ef cacy...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095561/self-resolving-eruptive-keratoacanthomas-after-full-field-erbium-laser-resurfacing
#10
Eileen L Axibal, Julia D Kreger, Michael E Contreras, Joel L Cohen
Keratoacanthoma (KA) is a subtype of squamous cell carcinoma whose development has been linked to excessive sun exposure, immunosuppression, and trauma. Given the rapidly expanding therapeutic armamentarium for anti-aging modalities in dermatology, reports of KA secondary to invasive cosmetic procedures are on the rise. We present a case of eruptive KAs after full- eld ablative Erbium:YAG 2940 nm laser resurfacing of the face that resolved with minimal intervention. This case demonstrates the potential for a rare yet signi cant laser complication that may warrant discussion during the consenting process...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095557/the-photodynamic-therapy-experience-of-a-high-volume-laser-and-dermatologic-surgery-center
#11
David E Orbuch, Lauren Penn, Bradley S Bloom, Jeremy A Brauer, Daniel B Shin, Joshua Greenbaum, Leonard J Bernstein, Elliot T Weiss, Robert T Anolik, Roy G Geronemus
BACKGROUND: Photodynamic therapy (PDT) is an FDA approved treatment for actinic keratoses (AK's) although multiple off-label indi- cations are reported. Despite frequent use for AK's, no clear consensus exists regarding protocols for overall treatment parameters. METHODS: Retrospective chart review of 1,491 subjects who underwent PDT between 2007 and 2011 at a high volume laser surgery center. Demographic information, clinical history, treatment data, and subsequent diagnosis of skin cancers were recorded...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28091849/dynamic-optical-absorption-characteristics-of-blood-after-slow-and-fast-heating
#12
Hao Jia, Bin Chen, Dong Li
Laser treatment is the most effective therapy in dermatology for vascular skin disorders, such as port-wine stains (PWS). Changes in heat-induced absorbance in blood must be determined for accurate numerical simulation and implementation of multi-pulse laser therapy for treatment of PWS. Thermally induced absorbance changes in hemoglobin in blood were compared in vitro between slow water bath heating and fast heating irradiated by using sub-millisecond Nd:YAG laser. Blood composition at different temperatures was calculated by comparing blood absorption spectra with those of pure HbO2, Hb, and metHb at room temperature...
April 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28090508/laser-applications-in-surgery
#13
REVIEW
Beina Azadgoli, Regina Y Baker
In modern medicine, lasers are increasingly utilized for treatment of a variety of pathologies as interest in less invasive treatment modalities intensifies. The physics behind lasers allows the same basic principles to be applied to a multitude of tissue types using slight modifications of the system. Multiple laser systems have been studied within each field of medicine. The term "laser" was combined with "surgery," "ablation," "lithotripsy," "cancer treatment," "tumor ablation," "dermatology," "skin rejuvenation," "lipolysis," "cardiology," "atrial fibrillation (AF)," and "epilepsy" during separate searches in the PubMed database...
December 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28061966/new-treatments-for-hair-loss
#14
S Vañó-Galván, F Camacho
The treatment of hair loss is an important part of clinical dermatology given the prevalence of the problem and great impact on patients' quality of life. Many new treatments have been introduced in recent years. This review summarizes the main ones in 4 groups: a) For androgenetic alopecia, we discuss new excipients for oral minoxidil, dutasteride, and finasteride as well as new forms of topical application; prostaglandin agonists and antagonists; low-level laser therapy; and regenerative medicine with Wnt signaling activators and stem cell therapy...
January 3, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28056209/fractional-co2-laser-from-skin-rejuvenation-to-vulvo-vaginal-reshaping
#15
Maurizio Filippini, Ester Del Duca, Francesca Negosanti, Diletta Bonciani, Luca Negosanti, Mario Sannino, Giovanni Cannarozzo, Steven Paul Nisticò
BACKGROUND: The CO2 laser has become the gold standard treatment in dermatologic surgery for the treatment of a large number of skin and mucosal lesions. The introduction of the fractional micro-ablative technology represented an integration to the ablative resurfacing technique, reducing the healing time and the side effects. OBJECTIVE: Vaginal rejuvenation performed with this technique is a minimally invasive procedure that stimulates internal tissues of the female lower genital tract to regenerate the mucosa, improving tissue trophism and restoring the correct functionality...
March 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28034606/treatment-of-hidradenitis-suppurativa-with-intralesional-photodynamic-therapy-with-5-aminolevulinic-acid-and-630nm-laser-beam
#16
María Jesús Suárez Valladares, Noemi Eiris Salvado, Manuel Angel Rodríguez Prieto
BACKGROUND: Hidradenitis suppurativa (HS) is a chronic relapsing inflammatory skin disease with multiple treatment options that have been used with mixed results. OBJECTIVES: To evaluate the effectiveness, safety and tolerability of intralesional photodynamic therapy (I-PDT) in the management of HS. Also, to assess the effect of this technique on the different areas treated. METHODS: Case series of 38 HS patients treated with I-PDT between 2011-2015 following a standardized protocol to assess response at the treated areas RESULTS: 29 patients achieved a complete response, while persistence was noted on 8 cases and only 1 suffered a recurrence...
December 19, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28005625/a-prospective-study-of-axillary-hair-reduction-in-patients-treated-with-microwave-technology
#17
Jeremy A Brauer, Julia P Neckman, Brian Zelickson, David B Vasily, Roy G Geronemus
BACKGROUND: Removing unwanted body hair is a growing trend in society today, and there are many laser-based devices for hair reduction. There are some limitations to those methods, including the lack of efficacy for lighter color hair. OBJECTIVE: The objective was to quantify hair reduction in the axillae after treatment with a noninvasive microwave energy device. MATERIALS AND METHODS: A prospective, multicenter study was performed at 3 private dermatology clinics...
December 21, 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28004257/literature-review-of-cosmetic-procedures-in-men-approaches-and-techniques-are-gender-specific
#18
REVIEW
Brandon E Cohen, Sameer Bashey, Ashley Wysong
The proportion of men receiving non-surgical cosmetic procedures has risen substantially in recent years. Various physiologic, anatomic, and motivational considerations differentiate the treatments for male and female patients. Nevertheless, research regarding approaches to the male cosmetic patient is scarce. We sought to provide an overview and sex-specific discussion of the most popular cosmetic dermatologic procedures pursued by men by conducting a comprehensive literature review pertaining to non-surgical cosmetic procedures in male patients...
February 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/27904832/frontal-fibrosing-alopecia-treatment-options
#19
Raymond Fertig, Antonella Tosti
Frontal fibrosing alopecia (FFA) is a rare dermatologic disease that causes scarring and hair loss and is increasing in prevalence worldwide. FFA patients typically present with hair loss in the frontal scalp region and eyebrows which may be associated with sensations of itching or burning. FFA is a clinically distinct variant of lichen planopilaris (LPP) that affects predominantly postmenopausal women, although men and premenopausal women may also be affected. Early diagnosis and prompt treatment are necessary to prevent definitive scarring and permanent hair loss...
November 2016: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/27885523/a-review-of-the-mechanism-of-action-of-lasers-and-photodynamic-therapy-for-onychomycosis
#20
REVIEW
Anil Kumar Bhatta, Uma Keyal, Xiuli Wang, Emese Gellén
Onychomycosis is one of the most common diseases in the field of dermatology. It refers to the fungal infection of the nail plate or nail bed with high incidence in the general population. The available treatment options for onychomycosis have limited use due to side effects, drug interactions, and contraindications, which necessitates the application of an alternative treatment for onychomycosis. In the recent years, lasers and photodynamic therapy (PDT) have been recognized as alternative treatment options...
February 2017: Lasers in Medical Science
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