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Lasers in Surgery and Medicine

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https://www.readbyqxmd.com/read/28906574/efficacy-and-safety-of-a-novel-picosecond-laser-using-combination-of-1%C3%A2-064-and-595%C3%A2-nm-on-patients-with-melasma-a-prospective-randomized-multicenter-split-face-2-hydroquinone-cream-controlled-clinical-trial
#1
Young-Jun Choi, Jae-Hui Nam, Jung Yup Kim, Joon Hong Min, Kui Young Park, Eun Jung Ko, Beom Joon Kim, Won-Serk Kim
BACKGROUND AND OBJECTIVES: Melasma is a common acquired, chronic hypermelanosis and still remains a therapeutic challenge. The low-fluence 1 064 nm Q-switched Nd:YAG laser is the most widely used for the treatment of moderate to severe melasma in Asia. Recently, the picosecond laser has been introduced for various pigmentary disorders such as melasma. We evaluated the efficacy and safety of a picosecond laser with dual-wavelengths (1 064 and 595 nm) and topical 2% hydroquinone (HQ) combination therapy on patients with melasma, and compared results with those obtained with 2% HQ alone...
September 14, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28906571/photodynamic-therapy-for-glioblastoma-a-preliminary-approach-for-practical-application-of-light-propagation-models
#2
Clément Dupont, Anne-Sophie Vignion, Serge Mordon, Nicolas Reyns, Maximilien Vermandel
PURPOSE: Photodynamic therapy (PDT) is a promising treatment modality to be added in the management of glioblastoma multiforme (GBM). Light distribution modeling is required for planning and optimizing PDT. Several models have been developed to predict the light propagation inside biological tissues. In the present study, two analytical methods of light propagation emitted from a cylindrical fiber source were evaluated: a discrete and a continuous method. METHODS: The two analytical approaches were compared according to their fluence rate results...
September 14, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28906568/diode-laser-to-treat-small-oral-vascular-malformations-a-prospective-case-series-study
#3
Christian Bacci, Luca Sacchetto, Gastone Zanette, Stefano Sivolella
OBJECTIVE: The current work examined a consecutive series of patients presenting vascular malformations (VMs) and venous lakes (VLs) of the lip and oral mucosa who were treated with transmucosal diode laser applications and assessed over a 1 year period. STUDY DESIGN AND METHODS: Fifty-nine patients (31 males and 28 females) presenting low-flow VMs or VLs of the oral cavity were treated transmucosally using a diode laser (with an 830 nm operating wavelength and 1...
September 14, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28881431/fractional-co2-laser-of-the-vagina-for-genitourinary-syndrome-of-menopause-is-the-out-of-pocket-cost-worth-the-outcome-of-treatment
#4
Patrick Lang, Jeffrey R Dell, Leonard Rosen, Peter Weiss, Mickey Karram
OBJECTIVES: The purpose of this study is to assess patient's satisfaction treatment outcomes and out-of-pocket expense for the fractional CO2 laser (SmartXide) in the treatment of genitourinary symptoms of menopause (GSM). MATERIALS AND METHODS: A multicenter retrospective cohort study of patients who completed a course of three vaginal treatments with the SmartXide(11) Fractional CO2 laser. Patients contacted via telephone and asked to participate in questionnaires to evaluate for adverse outcomes since last treatment, symptom severity before and after treatment, patient satisfaction with treatment, patient satisfaction with out-of-pocket expense, and sexual function...
September 7, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28853175/safety-of-non-ablative-fractional-laser-for-acne-scars-within-1-month-after-treatment-with-oral-isotretinoin-a-randomized-split-face-controlled-trial
#5
Sandeep S Saluja, Matthew L Walker, Erika M Summers, Payam Tristani-Firouzi, David R Smart
BACKGROUND AND OBJECTIVE: Based on reports of poor wound healing and scarring, it is currently recommended that patients wait 6 months after completion of oral isotretinoin therapy before the safe initiation of laser treatment. Our aim was to evaluate the safety of non-ablative fractional laser (NAFL) treatment for acne scars within 1 month after isotretinoin therapy. STUDY DESIGN/METHODS: This was a randomized split-face controlled trial involving 10 patients with acne scars who had completed isotretinoin treatment...
August 29, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28815643/early-intervention-with-non-ablative-fractional-laser-to-improve-cutaneous-scarring-a-randomized-controlled-trial-on-the-impact-of-intervention-time-and-fluence-levels
#6
Katrine E Karmisholt, Emily Wenande, Daniel Thaysen-Petersen, Peter A Philipsen, Uwe Paasch, Merete Haedersdal
BACKGROUND AND OBJECTIVES: Laser treatment in the early phases of wound healing may reduce scar formation. However, little is known on when in the early wound healing phases laser exposure most optimally should be provided and at which fluence levels. This study investigates the clinical effect of non-ablative-fractional-laser (NAFL) performed at three early time points at a range of fluence levels versus untreated control scars. MATERIALS AND METHODS: A randomized, controlled, intra-individual trial with erbium-glass 1,540 nm NAFL versus no laser treatment on sixteen subjects receiving 10 standardized full-thickness punch-biopsy wounds...
August 16, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28799650/facial-microcirculatory-and-biomechanical-skin-properties-after-single-high-energy-er-yag-laser-application
#7
Fabian Medved, Antonia Wurm, Manuel Held
OBJECTIVE: Owing to skin aging and the growing demand for skin rejuvenation, minimal invasive aesthetic treatments such as laser procedures are increasingly coming into focus. However, until now, little has been known about the objective effects of these procedures with respect to skin microcirculation or changes in skin elasticity. STUDY DESIGN: Facial skin rejuvenation was performed on 32 volunteers using ablative Erbium: YAG laser. Skin microcirculation and skin elasticity have then been evaluated objectively...
August 11, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28782115/optical-coherence-tomography-image-guided-smart-laser-knife-for-surgery
#8
Nitesh Katta, Austin B McElroy, Arnold D Estrada, Thomas E Milner
BACKGROUND AND OBJECTIVE: Surgical oncology can benefit from specialized tools that enhance imaging and enable precise cutting and removal of tissue without damage to adjacent structures. The combination of high-resolution, fast optical coherence tomography (OCT) co-aligned with a nanosecond pulsed thulium (Tm) laser offers advantages over conventional surgical laser systems. Tm lasers provide superior beam quality, high volumetric tissue removal rates with minimal residual thermal footprint in tissue, enabling a reduction in unwanted damage to delicate adjacent sub-surface structures such as nerves or micro-vessels...
August 7, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28759110/effects-of-early-combinatorial-treatment-of-autologous-split-thickness-skin-grafts-in-red-duroc-pig-model-using-pulsed-dye-laser-and-fractional-co2-laser
#9
J Kevin Bailey, Britani N Blackstone, Danielle M DeBruler, Jayne Y Kim, Molly E Baumann, Kevin L McFarland, Folasade O Imeokparia, Dorothy M Supp, Heather M Powell
BACKGROUND AND OBJECTIVE: The use of pulsed dye laser (PDL) and fractional CO2 (FX CO2 ) laser therapy to treat and/or prevent scarring following burn injury is becoming more widespread with a number of studies reporting reduction in scar erythema and pruritus following treatment with lasers. While the majority of studies report positive outcomes following PDL or FX CO2 therapy, a number of studies have reported no benefit or worsening of the scar following treatment. The objective of this study was to directly compare the efficacy of PDL, FX CO2 , and PDL + FX CO2 laser therapy in reducing scarring post burn injury and autografting in a standardized animal model...
July 31, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28699676/influence-of-multi-wavelength-laser-irradiation-of-enamel-and-dentin-surfaces-at-0-355-2-94-and-9-4%C3%A2-%C3%AE-m-on-surface-morphology-permeability-and-acid-resistance
#10
Nai-Yuan N Chang, Jamison M Jew, Jacob C Simon, Kenneth H Chen, Robert C Lee, William A Fried, Jinny Cho, Cynthia L Darling, Daniel Fried
OBJECTIVE: Ultraviolet (UV) and infrared (IR) lasers can be used to specifically target protein, water, and mineral, respectively, in dental hard tissues to produce varying changes in surface morphology, permeability, reflectivity, and acid resistance. The purpose of this study was to explore the influence of laser irradiation and topical fluoride application on the surface morphology, permeability, reflectivity, and acid resistance of enamel and dentin to shed light on the mechanism of interaction and develop more effective treatments...
July 12, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28699660/binding-of-indocyanine-green-in-polycaprolactone-fibers-using-blend-electrospinning-for-in-vivo-laser-assisted-vascular-anastomosis
#11
Annemarie Schönfeld, Zacharia Mbäıdjol Kabra, Mihai Constantinescu, Dieter Bosshardt, Michael H Stoffel, Kirsten Peters, Martin Frenz
BACKGROUND AND OBJECTIVE: The clinical application of laser-assisted vascular anastomosis is afflicted by unreliable and low bonding strengths as well as tedious handling during microvascular surgery. The challenge to be met arises from the flow-off of the chromophore during soldering that changes the absorption and stains the surrounding tissue, leading to an uncontrollable thermal damage zone. In this study, we investigated the feasibility to produce an indocyanine green (ICG)-loaded patch by electrospinning and tested its applicability to both in vitro and in vivo microvascular laser soldering...
July 12, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28677822/spectroscopic-characterization-of-oral-epithelial-dysplasia-and-squamous-cell-carcinoma-using-multiphoton-autofluorescence-micro-spectroscopy
#12
Rahul Pal, Kert Edward, Liang Ma, Suimin Qiu, Gracie Vargas
OBJECTIVE: Multiphoton autofluorescence microscopy (MPAM) has shown potential in identifying features that are directly related to tissue microstructural and biochemical changes throughout epithelial neoplasia. In this study, we evaluate the autofluorescence spectral characteristics of neoplastic epithelium in dysplasia and oral squamous cell carcinoma (OSCC) using multiphoton autofluorescence spectroscopy (MPAS) in an in vivo hamster model of oral neoplasia in order to identify unique signatures that could be used to delineate normal oral mucosa from neoplasia...
July 5, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28671718/antinociceptive-effects-of-low-level-laser-therapy-at-3-and-8%C3%A2-j-cm-2-in-a-rat-model-of-postoperative-pain-possible-role-of-endogenous-opioids
#13
Fabio C Pereira, Julia R Parisi, Caio B Maglioni, Gabriel B Machado, Paulino Barragán-Iglesias, Josie R T Silva, Marcelo L Silva
Low-level laser therapy (LLLT) is the direct application of light to stimulate cell responses (photobiomodulation) to promote tissue healing, reduce inflammation, and induce analgesia; the molecular basis for these effects of LLLT remains unclear. The objective of this study was to evaluate the analgesic effect of LLLT in the rat plantar incision model of postoperative pain as well as to investigate some of the possible mechanisms involved in this effect. Wistar rats were submitted to plantar incision and treated with LLLT (830 nm, continuous-mode, 30 mW/cm(2) , 1-12 J/cm(2) )...
July 3, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28921618/news-announcements-american-society-for-laser-medicine-and-surgery-inc
#14
(no author information available yet)
No abstract text is available yet for this article.
October 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28921617/re-traser-an-innovative-device-for-the-treatment-of-nasal-telangiectasias-lasers-in-surgery-and-medicine-2017-49-6-625-631
#15
(no author information available yet)
No abstract text is available yet for this article.
October 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28489260/histologic-changes-associated-with-talaporfin-sodium-mediated-photodynamic-therapy-in-rat-skin
#16
Wesley J Moy, Jonathan Yao, Sébastien M de Feraudy, Sean M White, Jocelynda Salvador, Kristen M Kelly, Bernard Choi
BACKGROUND AND OBJECTIVE: Alternative treatments are needed to achieve consistent and more complete port wine stain (PWS) removal, especially in darker skin types; photodynamic therapy (PDT) is a promising alternative treatment. To this end, we previously reported on Talaporfin Sodium (TS)-mediated PDT. It is essential to understand treatment tissue effects to design a protocol that will achieve selective vascular injury without ulceration and scarring. The objective of this work is to assess skin changes associated with TS-mediated PDT with clinically relevant treatment parameters...
October 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28833299/re-2017-electronic-posters-eposters-lasers-in-surgery-and-medicine-2017-49-4-417-467
#17
(no author information available yet)
No abstract text is available yet for this article.
September 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28833298/news-announcements-american-society-for-laser-medicine-and-surgery-inc
#18
(no author information available yet)
No abstract text is available yet for this article.
September 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28833297/re-transcutaneous-temperature-controlled-radiofrequency-for-orgasmic-dysfunction-lasers-in-surgery-and-medicine-2016-48-7-641-645
#19
Red M Alinsod
No abstract text is available yet for this article.
September 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28581122/the-application-of-wireless-near-infrared-spectroscopy-on-detecting-peripheral-circulation-in-patients-with-diabetes-foot-ulcer-when-doing-buerger-s-exercise
#20
Min-Ling Chen, Bor-Shyh Lin, Cheng-Wei Su, Yen-Bin Lin, Mei-Yen Chen, Jen-Hsiang Shen, Chang-Cheng Chang
BACKGROUND AND OBJECTIVES: The majority of patients with diabetes foot ulcer have peripheral arterial disease. The technique of near infrared spectroscopy (NIRS) used to monitor the dorsal foot blood circulation condition is by measuring the absorption differences between oxy-hemoglobin and deoxy-hemoglobin. STUDY DESIGNS/MATERIALS AND METHODS: Patients with diabetic foot ulcer (DFU) treated in our wound care center were divided into two sub-groups based on the Duplex ultrasound or angiography...
September 2017: Lasers in Surgery and Medicine
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