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https://www.readbyqxmd.com/read/29152831/laser-treatment-of-cutaneous-angiokeratomas-a-systematic-review
#1
REVIEW
Jannett Nguyen, Lance W Chapman, Dorota Z Korta, Christopher B Zachary
Angiokeratomas can present therapeutic challenges, especially in cases of extensive lesions, where traditional surgical methods carry high risks of scarring and hemorrhage. Argon, pulsed dye (PDL), neodymium-doped yttrium aluminum garnet (Nd:YAG), copper vapor, potassium titanyl phosphate, carbon dioxide, and erbium-doped yttrium aluminum garnet (Er:YAG) lasers have emerged as alternative options. To review the use and efficacy of lasers in treating angiokeratomas. A PubMed search identified randomized clinical trials, cohort studies, case series, and case reports involving laser treatment of cutaneous angiokeratomas...
November 19, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/29149442/assessment-of-the-relative-contribution-of-volume-and-concentration-changes-in-yttrium-90-labelled-resin-microspheres-on-ionization-chamber-measurements
#2
Nicholas Forwood, Kathy P Willowson, Michael Tapner, Dale L Bailey
No abstract text is available yet for this article.
November 17, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29147442/metastatic-malignant-paraganglioma-a-case-report-and-review-of-literature
#3
Carlo Angelo Prades, Bassel Atassi, Hamid Nazeer
Metastasis is a rare presentation of non-secretory paraganglioma. Consequently, there is no standard of care for the treatment of metastatic malignant paraganglioma. The most widely used chemotherapy regimen for non-resectable cases includes cyclophosphamide, vincristine, and dacarbazine (CVD). CVD has been previously studied with variable therapeutic response. However, yttrium-90 (Y90) radioembolization has not been previously studied in the treatment of hepatic metastasis in patients diagnosed with malignant paraganglioma...
June 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29140862/retroprosthetic-membrane-formation-in-boston-keratoprosthesis-a-case-control-matched-comparison-of-titanium-versus-pmma-backplate
#4
Rushi K Talati, Joelle A Hallak, Faris I Karas, Jose de la Cruz, M Soledad Cortina
PURPOSE: Retroprosthetic membrane (RPM) formation is the most common complication after Boston type 1 keratoprosthesis (KPro) implantation. It affects visual acuity and can predispose to corneal melt. Two KPro backplate materials are available: titanium and polymethyl methacrylate (PMMA). This study investigates the influence of the KPro backplate material on visually significant RPM formation. METHODS: A retrospective case-control-matched study involving 40 patients; 20 eyes implanted with a titanium backplate KPro were case-matched with 20 eyes implanted with a PMMA backplate KPro between 2007 and 2015 with 1-year minimum follow-up...
November 14, 2017: Cornea
https://www.readbyqxmd.com/read/29136903/multivariate-optimization-of-a-procedure-employing-microwave-assisted-digestion-for-the-determination-of-nickel-and-vanadium-in-crude-oil-by-icp-oes
#5
Shirlei L Dos Anjos, Jeferson C Alves, Sarah A Rocha Soares, Rennan G O Araujo, Olivia M C de Oliveira, Antonio F S Queiroz, Sergio L C Ferreira
This work presents the optimization of a sample preparation procedure using microwave-assisted digestion for the determination of nickel and vanadium in crude oil employing inductively coupled plasma optical emission spectrometry (ICP OES). The optimization step was performed utilizing a two-level full factorial design involving the following factors: concentrated nitric acid and hydrogen peroxide volumes, and microwave-assisted digestion temperature. Nickel and vanadium concentrations were used as responses...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29131717/in-vitro-effects-of-high-intensity-laser-photobiomodulation-on-equine-bone-marrow-derived-mesenchymal-stem-cell-viability-and-cytokine-expression
#6
Frances J Peat, Aimee C Colbath, Lori M Bentsen, Laurie R Goodrich, Melissa R King
OBJECTIVE: This study aimed to examine the influence of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser irradiation on equine bone marrow-derived mesenchymal stem cell (MSC) viability, proliferation, and cytokine expression in vitro. BACKGROUND: Photobiomodulation of cells using monochromatic light is a technique designed to influence cellular processes. Previous studies have shown dose-dependent effects of low-level laser irradiation on cell proliferation and cytokine expression in a range of cell types and species...
November 13, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29128766/low-biodegradability-of-dissolved-organic-matter-and-trace-metals-from-subarctic-waters
#7
Olga V Oleinikova, Liudmila S Shirokova, Olga Y Drozdova, Sergey A Lapitskiy, Oleg S Pokrovsky
The heterotrophic mineralization of dissolved organic matter (DOM) controls the CO2 flux from the inland waters to the atmosphere, especially in the boreal waters, although the mechanisms of this process and the fate of trace metals associated with DOM remain poorly understood. We studied the interaction of culturable aquatic (Pseudomonas saponiphila) and soil (Pseudomonas aureofaciens) Gammaproteobacteria with seven different organic substrates collected in subarctic settings. These included peat leachate, pine crown throughfall, fen, humic lake, stream, river, and oligotrophic lake with variable dissolved organic carbon (DOC) concentrations (from 4 to 60mgL(-1))...
November 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29123635/er-yag-laser-and-cyclosporin-a-effect-on-cell-cycle-regulation-of-human-gingival-fibroblast-cells
#8
Hojjat-Allah Abbaszadeh, Ali Asghar Peyvandi, Yousef Sadeghi, Akram Safaei, Mona Zamanian-Azodi, Maryam Sadat Khoramgah, Mostafa Rezaei-Tavirani
Introduction: Periodontitis is a set of inflammatory disorders characterized by periodontal attachment loss and alveolar bone resorption. Because of deficiency in periodontitis mechanical therapy, this study was aimed to explore the molecular influence of the erbiumdoped: yttrium aluminum garnet (Er:YAG) laser and cyclosporin A (CsA) on human gingival fibroblasts (HGFs) for improvement in periodontal diseases therapy. Methods: We focused on articles that studied the proteome profiles of HGFs after treatment with laser irradiation and application of CsA...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29120610/strategic-materials-in-the-automobile-a-comprehensive-assessment-of-strategic-and-minor-metals-use-in-passenger-cars-and-light-trucks
#9
Frank R Field, Timothy J Wallington, Mark P Everson, Randolph E Kirchain
A comprehensive component-level assessment of several strategic and minor metals (SaMMs) including copper, manganese, magnesium, nickel, tin, niobium, light rare earth elements (lanthanum, cerium, praseodymium, neodymium, promethium, and samarium), cobalt, silver, tungsten, heavy rare earth elements (yttrium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium) and gold use in the 2013 model year Ford Fiesta, Focus, Fusion, and F-150 is presented. Representative material contents in cars and light-duty trucks are estimated using comprehensive, component-level data reported by suppliers...
November 9, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29118504/bilateral-early-capsular-block-syndrome-following-implantation-of-the-new-trifocal-toric-lens
#10
Ashbala Khattak
A young patient underwent phacoemulsification with endocapsular implantation of trifocal toric lens in both eyes (AT LISA tri toric 939 MP, Carl-Zeiss, Germany). One-week postsurgery, he developed capsular block syndrome (CBS) in both eyes. There was deterioration of uncorrected visual acuity at 1-week postsurgery, with a myopic shift of 2.5 diopters (D) in the right eye and 2.0 D in the left eye. The intraocular pressure was only elevated in the left eye. Neodymium: yttrium-aluminum-garnet laser posterior capsulotomy resolved the block successfully in both eyes...
September 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/29113660/functional-hepatic-imaging-as-a-biomarker-of-primary-and-secondary-tumor-response-to-loco-regional-therapies
#11
REVIEW
H L Lewis, M A Ghasabeh, P Khoshpouri, I R Kamel, T M Pawlik
Objective criteria to measure tumor response are a key tenet for assessment of treatment efficacy when evaluating a therapeutic modality. Several response criteria have been proposed including the Response Evaluation Criteria in Solid Tumors (RECIST), modified RECIST (mRECIST), RECIST 1-1, and European Association for the Study of the Liver (EASL) guidelines. Response following loco-regional therapies (LRT) can be particularly difficult to assess as post-treatment changes may not always relate to changes in lesion size...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29113030/recent-advances-in-transarterial-embolotherapies-in-the-treatment-of-hepatocellular-carcinoma
#12
Edward Wolfgang Lee, Sarah Khan
Management of hepatocellular carcinoma (HCC) can be maximized with the utilization of multiple treatment modalities including transplant, surgical resection and locoregional therapies including ablative therapies and transarterial embolotherapies. Although transplant and surgical resection offer the best clinical outcomes, a limited number of patients are amenable to these surgical treatment options due to the advanced disease at presentation. Transarterial embolotherapies including conventional transarterial chemoembolization (cTACE), bland transarterial embolization (TAE), drug-eluting beads transarterial chemoembolization (DEB-TACE) and selective internal radiation therapy (SIRT) with Yttrium 90 (90Y) have played an increasingly important role for these patients with unresectable HCC...
November 8, 2017: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/29107680/grant-deny-or-reassess-the-role-of-yttrium-90-in-hepatocellular-carcinoma
#13
Ahmed Omar Kaseb
No abstract text is available yet for this article.
October 26, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/29107679/efficacy-and-safety-of-selective-internal-radiotherapy-with-yttrium-90-resin-microspheres-compared-with-sorafenib-in-locally-advanced-and-inoperable-hepatocellular-carcinoma-sarah-an-open-label-randomised-controlled-phase-3-trial
#14
Valérie Vilgrain, Helena Pereira, Eric Assenat, Boris Guiu, Alina Diana Ilonca, Georges-Philippe Pageaux, Annie Sibert, Mohamed Bouattour, Rachida Lebtahi, Wassim Allaham, Hélène Barraud, Valérie Laurent, Elodie Mathias, Jean-Pierre Bronowicki, Jean-Pierre Tasu, Rémy Perdrisot, Christine Silvain, René Gerolami, Olivier Mundler, Jean-Francois Seitz, Vincent Vidal, Christophe Aubé, Frédéric Oberti, Olivier Couturier, Isabelle Brenot-Rossi, Jean-Luc Raoul, Anthony Sarran, Charlotte Costentin, Emmanuel Itti, Alain Luciani, René Adam, Maïté Lewin, Didier Samuel, Maxime Ronot, Aurelia Dinut, Laurent Castera, Gilles Chatellier
BACKGROUND: Sorafenib is the recommended treatment for patients with advanced hepatocellular carcinoma. We aimed to compare the efficacy and safety of sorafenib to that of selective internal radiotherapy (SIRT) with yttrium-90 ((90)Y) resin microspheres in patients with hepatocellular carcinoma. METHODS: SARAH was a multicentre, open-label, randomised, controlled, investigator-initiated, phase 3 trial done at 25 centres specialising in liver diseases in France. Patients were eligible if they were aged at least 18 years with a life expectancy greater than 3 months, had an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1, Child-Pugh liver function class A or B score of 7 or lower, and locally advanced hepatocellular carcinoma (Barcelona Clinic Liver Cancer [BCLC] stage C), or new hepatocellular carcinoma not eligible for surgical resection, liver transplantation, or thermal ablation after a previously cured hepatocellular carcinoma (cured by surgery or thermoablative therapy), or hepatocellular carcinoma with two unsuccessful rounds of transarterial chemoembolisation...
October 26, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/29099682/er-cr-ysgg-laser-energy-delivery-pulse-and-power-effects-on-enamel-surface-and-erosive-resistance
#15
Renan Mota de Oliveira, Vinicius Matsuzaki de Souza, Camila Machado Esteves, Ynara Bosco de Oliveira Lima-Arsati, Alessandra Cassoni, José Augusto Rodrigues, Aldo Brugnera Junior
BACKGROUND: High power lasers have been suggested as a useful tool for dental caries and erosion prevention due to the increase of enamel acid resistance. OBJECTIVE: to evaluate the effect of Er,Cr:YSGG (erbium,chromium:yttrium, scandium, gallium, garnet) laser irradiation pulse frequency and power on enamel surface and acid erosion resistance. METHODS: By combining pulse frequency (5-75 Hz) and power settings (0.10-1.00 W), 20 irradiated groups and one nonirradiated control group were tested...
November 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29098459/picosecond-532-nm-neodymium-doped-yttrium-aluminium-garnet-laser-a-novel-and-promising-modality-for-the-treatment-of-caf%C3%A3-au-lait-macules
#16
Ofir Artzi, Joseph N Mehrabi, Amir Koren, Roni Niv, Moshe Lapidoth, Assi Levi
Café-au-lait macules (CALMs) present as benign hyperpigmented, well-circumscribed spots on the skin for which many patients seek treatment for aesthetic reasons. The objective of this study is to report our experience in treating CALMs using a picosecond 532-nm neodymium-doped yttrium aluminium garnet (PS 532 nm) laser. This is a retrospective case series of 16 patients with CALMs who were treated by a PS 532-nm laser (1-4 treatments, 4-8 weeks apart). Response as seen on clinical photographs was assessed by two independent dermatologists and graded on a scale of 0 (exacerbation) to 5 (95-100% improvement)...
November 2, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29098194/cowper-s-syringocele-in-adolescent-male-case-report
#17
Milena Taskovska, Simon Hawlina
Background: Cowper's syringocele is a rare condition, uncommon in the adult population. It is more common in the pediatric population. Patients could be asymptomatic or present with irritative and/or obstructive symptoms. Ultrasonography (US) of perineal region, pelvis MRI, or urethrography are the most often used diagnostic modalities. Surgical treatment is indicated in all symptomatic patients. Endoscopic approach is preferred over open surgery. Unroofing of syringocele with cold knife or holmium yttrium aluminium garnet (YAG) laser is effective treatment...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29097938/labelling-of-90-y-and-177-lu-dota-bioconjugates-for-targeted-radionuclide-therapy-a-comparison-among-manual-semiautomated-and-fully-automated-synthesis
#18
Michele Iori, Pier C Capponi, Sara Rubagotti, Luca Rosario Esposizione, Johanna Seemann, Riccardo Pitzschler, Thorsten Dreger, Debora Formisano, Elisa Grassi, Federica Fioroni, Annibale Versari, Mattia Asti
In spite of the hazard due to the radiation exposure, preparation of (90)Y- and (177)Lu-labelled radiopharmaceuticals is still mainly performed using manual procedures. In the present study the performance of a commercial automatic synthesizer based on disposable cassettes for the labelling of (177)Lu- and (90)Y-DOTA-conjugated biomolecules (namely, DOTATOC and PSMA-617) was evaluated and compared to a manual and a semiautomated approach. The dose exposure of the operators was evaluated as well. More than 300 clinical preparations of both (90)Y- and (177)Lu-labelled radiopharmaceuticals have been performed using the three different methods...
2017: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29097087/laser-ablation-as-monotherapy-for-penile-squamous-cell-carcinoma-a-multi-center-cohort-analysis
#19
Dominic H Tang, Sylvia Yan, Sarah R Ottenhof, Désirée Draeger, Adam S Baumgarten, Juan Chipollini, Chris Protzel, Yao Zhu, Ding-Wei Ye, Oliver W Hakenberg, Simon Horenblas, Nicholas A Watkin, Philippe E Spiess
INTRODUCTION: Although the trend towards penile sparing therapy is increasing for penile squamous cell carcinoma, outcomes for laser ablation therapy have not been widely reported. We assessed the clinical outcomes of penile cancer patients treated with only laser ablation. MATERIALS AND METHODS: A retrospective review was performed on 161 patients across 5 multi-center tertiary referral centers from 1985 to 2015. All patients underwent penile sparing surgery with only laser ablation for squamous cell carcinoma of the penis...
October 30, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29092514/a-large-diameter-hollow-shaft-cryogenic-motor-based-on-a-superconducting-magnetic-bearing-for-millimeter-wave-polarimetry
#20
B R Johnson, F Columbro, D Araujo, M Limon, B Smiley, G Jones, B Reichborn-Kjennerud, A Miller, S Gupta
In this paper, we present the design and measured performance of a novel cryogenic motor based on a superconducting magnetic bearing (SMB). The motor is tailored for use in millimeter-wave half-wave plate (HWP) polarimeters, where a HWP is rapidly rotated in front of a polarization analyzer or polarization-sensitive detector. This polarimetry technique is commonly used in cosmic microwave background polarization studies. The SMB we use is composed of fourteen yttrium barium copper oxide (YBCO) disks and a contiguous neodymium iron boron (NdFeB) ring magnet...
October 2017: Review of Scientific Instruments
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