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https://www.readbyqxmd.com/read/28819810/laser-assisted-surgery-of-the-upper-aero-digestive-tract-a-clarification-of-nomenclature-a-consensus-statement-of-the-european-laryngological-society
#1
Marc Remacle, Christoph Arens, Mostafa Badr Eldin, Guillermo Campos, Carlos Chiesa Estomba, Pavel Dulguerov, Ivana Fiz, Anastasios Hantzakos, Jerôme Keghian, Francesco Mora, Nayla Matar, Giorgio Peretti, Cesare Piazza, Gregory N Postma, Vyas Prasad, Elisabeth Sjogren, Frederik G Dikkers
Acronyms and abbreviations are frequently used in otorhinolaryngology and other medical specialties. CO2 laser-assisted transoral surgery of the pharynx, the larynx and the upper airway is a family of commonly performed surgical procedures termed transoral laser microsurgery (TLM). The abbreviation TLM can be confusing because of alternative modes of delivery. Classification and definition of the different types of procedures, performed transorally or transnasally, are proposed by the Working Committee for Nomenclature of the European Laryngological Society, emphasizing the type of laser used and the way this laser is transmitted...
August 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28776112/laser-treatments-of-active-acne
#2
REVIEW
Lauren E Wiznia, Mary L Stevenson, Arielle R Nagler
The utility of laser therapy is increasingly being recognized in the treatment of active acne vulgaris. We aimed to perform a narrative review of the medical literature on the use of laser therapy for the treatment of active acne vulgaris. We performed a PubMed literature search on September 1, 2016 using the search terms "active acne," "acne," "laser therapy," and "laser surgery." Case reports, case series, cohort, and controlled trials were included. Studies of lasers in the treatment of acne, including erbium glass, Nd:YAG, pulse dye laser (PDL), potassium titanyl phosphate (KTP) laser, and laser-based photodynamic therapy, have been published...
August 4, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28775324/a-novel-single-crystal-single-pass-source-for-polarisation-and-colour-entangled-photon-pairs
#3
Fabian Laudenbach, Sebastian Kalista, Michael Hentschel, Philip Walther, Hannes Hübel
We demonstrate a new generation mechanism for polarisation- and colour-entangled photon pairs. In our approach we tailor the phase-matching of a periodically poled KTP crystal such that two downconversion processes take place simultaneously. Relying on this effect, our source emits entangled bipartite photon states, emerging intrinsically from a single, unidirectionally pumped crystal with uniform poling period. Its property of being maximally compact and luminous at the same time makes our source unique compared to existing photon-entanglement sources and is therefore of high practical significance in quantum information experiments...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28750974/does-kinesiology-tape-increase-trunk-forward-flexion
#4
Heidi Preece, Peter White
INTRODUCTION: Non specific lower back pain is a common musculoskeletal disorder in manual labourers due to the strenuous nature of their job. Fear of pain can cause restrictions in trunk movement leading to reduced flexibility. Kinesiology Tape (KT) may be an option for treating low back stiffness. The present study investigated the immediate effect of KT on trunk flexion active range of motion. METHOD: 34 male participants (mean age ± SD: 42 ± 11), in physically demanding jobs, asymptomatic of pain, with a history of non specific lower back pain were randomly assigned to: 1) KT Intervention (KTI) or 2) KT Placebo (KTP)...
July 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28717543/outcome-analysis-of-transurethral-resection-versus-potassium-titanyl-phosphate-photo-selective-vaporization-of-the-prostate-for-the-treatment-of-benign-prostatic-hyperplasia-a-randomized-controlled-trial-with-4-years-follow-up
#5
Bimalesh Purkait, Rahul Janak Sinha, Krishna Swamy A Srinivas, Ankur Bansal, Ashok Kumar Sokhal, Vishwajeet Singh
OBJECTIVE: Photovaporization of prostate (PVP) is a newer surgical modality of benign prostatic hyperplasia (BPH) which is gaining importance recently. There are a few randomized controlled trials that showed safety and efficacy of PVP in comparison with transurethral resection of prostate (TURP) with limited follow-up period (<2 years). Here, we are presenting a comparative study performed on potassium titanyl phosphate (KTP) PVP laser versus TURP for the treatment of BPH with long-term follow-up period...
June 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28711781/the-nature-of-hydrogen-bonding-interactions-in-nonsteroidal-anti-inflammatory-drugs-revealed-by-polarized-ir-spectroscopy
#6
Barbara Hachuła
The influence of hydrogen-bonding interactions in the solid phase on the IR spectroscopic pattern of the νOH band of nonsteroidal anti-inflammatory drugs (NSAIDs) was studied experimentally by IR spectroscopy with the use of polarized light at two temperatures (293K and 77K) and in isotopic dilution. The neat and deuterated crystals of (S)-naproxen ((S)-NPX), (R)-flurbiprofen ((R)-FBP), (RS)-flurbiprofen ((RS)-FBP) and (RS)-ketoprofen ((RS)-KTP) were obtained by melt crystallization between the two squeezed CaF2 plates...
July 9, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28574694/two-barium-gold-iodates-syntheses-structures-and-properties-of-polar-baau-io3-5-and-nonpolar-hba4au-io3-12-materials
#7
Bing-Ping Yang, Chun-Li Hu, Fei-Fei Mao, Xiang Xu, Jiang-Gao Mao
Two new barium gold iodates, namely, BaAu(IO3)5 and HBa4Au(IO3)12, have been prepared. BaAu(IO3)5 crystallizes in the polar space group Pca21, whereas HBa4Au(IO3)12 crystallizes in the centrosymmetric space group P21/c. BaAu(IO3)5 consists of unique polar [Au(IO3)4](-) anions whose four iodate groups are located at both sides of the AuO4 plane and the polarity points in the [001̅] direction. BaAu(IO3)5 displays strong second-harmonic-generation (SHG) effects about 0.6KTiOPO4 (KTP) and is phase-matchable. Thermal properties, optical spectra analyses, and theoretical calculations are also reported...
June 2, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28569854/tunable-7-12%C3%A2-%C3%A2-%C3%AE-m-picosecond-optical-parametric-amplifier-based-on-a-liinse-sub-2-sub-mid-infrared-crystal
#8
Shanpeng Wang, Shibo Dai, Ning Jia, Nan Zong, Chunlong Li, Yu Shen, Tongtong Yu, Jie Qiao, Zeliang Gao, Qinjun Peng, Zuyan Xu, Xutang Tao
Mid-infrared (MIR) nonlinear optical crystals of LiInSe<sub>2</sub> (LISe) were grown by a modified Bridgman technique on a (001)-seed. A 7-12 μm widely tunable picosecond (ps) MIR optical parametric amplifier (OPA) based on a LISe crystal was demonstrated for the first time, to the best of our knowledge. The MIR OPA was pumped by a 30 ps 1064 nm Nd:YAG laser and injected by a KTiOPO<sub>4</sub> (KTP)-based widely tunable near-infrared seed. The idler operating at 7.5 μm with the highest pulse energy of 170 μJ was obtained under a pump energy of 14 mJ...
June 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28494300/behaviour-of-the-main-nonsteroidal-anti-inflammatory-drugs-in-a-membrane-bioreactor-treating-urban-wastewater-at-high-hydraulic-and-sludge-retention-time
#9
D M González-Pérez, J I Pérez, M A Gómez
The behaviour and removal efficiency of ibuprofen (IBU), diclofenac (DCF), ketoprofen (KPF), and naproxen (NPX) during the real urban wastewater treatment by an experimental full-scale MBR working at high sludge and hydraulic retention time (SRT, HRT) were determined. The MBR worked in denitrification/nitrification conformation at 35.4h of HRT (Q=0.45m(3)/h), 37 d of SRT and a recirculation flow rate of 4Q. The experiments were made under steady-state conditions, reaching a biodegradable organic matter removal higher than 99...
April 26, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28489235/long-term-follow-up-of-ktp-laser-turbinate-reduction-for-the-treatment-of-obstructive-rhinopathy
#10
Hemal Raja, Scott Mitchell, George Barrett, Ashish Sharma, Derek W Skinner
We investigated the subjective, long-term, patient-reported symptom control after endoscopic potassium titanyl phosphate (KTP) laser reduction of the inferior turbinates. Symptoms were listed preoperatively and patients were asked, via telephone interview, the status of their symptoms. Chi-square analysis was used to assess statistical significance of the surgical intervention. Thirty-six patients (male:female ratio: 5:4) aged 13 to 80 years (mean: 37.2) were available for follow-up. The mean follow-up time was 68...
April 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28472878/neuropeptide-kyotorphin-impacts-on-lipopolysaccharide-induced-glucocorticoid-mediated-inflammatory-response-a-molecular-link-to-nociception-neuroprotection-and-anti-inflammatory-action
#11
Juliana Perazzo, Carla Lima, Montserrat Heras, Eduard Bardají, Mônica Lopes-Ferreira, Miguel Castanho
Neuropeptide kyotorphin (KTP) is a potent analgesic if administered directly into the brain. In contrast, KTP-amide (KTP-NH2) is analgesic, neuroprotective, and anti-inflammatory following systemic administration, albeit its mechanism of action is unknown. The aim of this study was to shed light on the mechanism of action of KTP-NH2 at the molecular level. KTP-NH2 does not inhibit the enkephalinases angiotensin-converting-enzyme and dipeptidyl-peptidase 3. Intravital microscopy showed that KTP-NH2 decreased the number of rolling leukocytes in a mouse model of inflammation induced by lipopolysaccharide (LPS)...
August 16, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28468163/indications-of-potassium-titanyl-phosphate-laser-therapy-for-slow-flow-vascular-malformations-in-oral-region
#12
Harutsugi Abukawa, Michihide Kono, Hayato Hamada, Ayako Okamoto, Takafumi Satomi, Daichi Chikazu
BACKGROUND: Indications for laser therapy for slow-flow vascular malformations in the oral and maxillofacial regions have not been clearly documented. The authors aimed to estimate the frequency of resolution of slow-flow vascular malformations and to identify risk and prognostic factors associated with resolution in potassium titanyl phosphate (KTP) laser treatment. METHODS: This study was designed as a prospective cohort study. Patients who had diagnosed slow-flow vascular malformations were continuously assigned to receive KTP laser therapy...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28406164/spin-polarized-second-harmonic-generation-from-the-antiferromagnetic-cacoso-single-crystal
#13
A H Reshak
The spin-polarized second harmonic generation (SHG) of the recently synthesized CaCoSO single crystal is performed based on the calculated electronic band structure. The calculation reveals that the spin-up (↑) channel of CaCoSO possesses a direct energy gap (Γ(v)-Γ(c)) of about 2.187 eV, 1.187 eV (K(v)-K(c)) for the spin-down (↓) channel and an indirect gap (Γ(v)-K(c)) of about 0.4 eV for the spin-polarized CaCoSO single crystal. The linear optical properties obtained reveal that the recently synthesized crystal exhibits considerable anisotropy with negative uniaxial anisotropy and birefringence favor to enhance the SHG...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28349572/nerve-transection-repair-using-laser-activated-chitosan-in-a-rat-model
#14
Neel K Bhatt, Taleef R Khan, Christopher Mejias, Randal C Paniello
OBJECTIVES/HYPOTHESIS: Cranial nerve transection during head and neck surgery is conventionally repaired with microsuture. Previous studies have demonstrated recovery with laser nerve welding (LNW), a novel alternative to microsuture. LNW has been reported to have poorer tensile strength, however. Laser-activated chitosan, an adhesive biopolymer, may promote nerve recovery while enhancing the tensile strength of the repair. Using a rat posterior tibial nerve injury model, we compared four different methods of nerve repair in this pilot study...
March 27, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28267309/formation-structure-and-frequency-doubling-effect-of-a-modification-of-strontium-cyanurate-%C3%AE-scy
#15
Markus Johannes Kalmutzki, Konstantin Dolabdjian, Nadja Wichtner, Markus Ströbele, Christoph Berthold, Hans-Jürgen Meyer
The low-temperature modification of Sr3(O3C3N3)2 was prepared and assigned as α-SCY after the high-temperature phase (now called β-SCY) and its frequency-doubling properties were reported recently. The crystal structure of α-SCY was solved and refined by single-crystal X-ray diffraction. Both modifications of SCY crystallize in noncentrosymmetric space groups, with the low-temperature phase (α-SCY) adopting the lower symmetry structure (Cc). Atomic positions in α-SCY (Cc) reveal only small deviations in comparison to those in the structure of β-SCY (R3c)...
March 7, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28241627/hybrid-q-switched-laser-with-mos-sub-2-sub-saturable-absorber-and-aom-driven-sub-nanosecond-ktp-opo
#16
Junpeng Qiao, Shengzhi Zhao, Kejian Yang, Jia Zhao, Guiqiu Li, Dechun Li, Tao Li, Wenchao Qiao
Two-dimensional (2D) materials, especially transition-metal dichalcogenides, such as molybdenum disulfide (MoS<sub>2</sub>) and tungsten disulfide (WS<sub>2</sub>), have attracted great interests due to their exceptional optical properties as saturable absorbers in laser systems. In this work, at first, we presented a diode-pumped passively Q-switched laser with MoS<sub>2</sub> saturable absorber (MoS<sub>2</sub>-SA). At an incident pump power of 6.54 W, a maximum output power of 1...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28157999/fully-resonant-tunable-monolithic-frequency-conversion-as-a-coherent-uva-source
#17
Joanna A Zielińska, Andrius Zukauskas, Carlota Canalias, Mehmet A Noyan, Morgan W Mitchell
We demonstrate a monolithic frequency converter incorporating up to four tuning degrees of freedom, three temperature and one strain, allowing resonance of pump and generated wavelengths simultaneous with optimal phase-matching. With a Rb-doped periodically-poled potassium titanyl phosphate (KTP) implementation, we demonstrate efficient continuous-wave second harmonic generation from 795 to 397, with low-power efficiency of 72% and high-power slope efficiency of 4.5%. The measured performance shows good agreement with theoretical modeling of the device...
January 23, 2017: Optics Express
https://www.readbyqxmd.com/read/28150483/from-gold-standard-resection-to-reproducible-future-standard-endoscopic-enucleation-of-the-prostate-eep-what-we-know-about-anatomical-enucleation
#18
Richard Naspro, Fernando Gomez Sancha, Michele Manica, Agostino Meneghini, Sascha Ahyai, Tevita Aho, Cristian Fiori, Ivano Vavassori, Luigi F DA Pozzo, Vito Pansadoro, Francesco Montorsi, Thomas R Herrmann
INTRODUCTION: Open prostatectomy (OP) and transurethral resection of the prostate (TURP) have traditionally been the most common surgical approaches for the treatment of benign prostatic hyperplasia causing bladder outlet obstruction and have certainly passed the test of time. In time, many endoscopic surgical procedures have been described as an alternative mini-invasive treatment. Holmium laser enucleation (HoLEP) guaranteed functional outcomes similar to OP and TURP with lower peri-operative complication rates for any prostate size...
February 1, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28141651/indications-of-potassium-titanyl-phosphate-laser-therapy-for-slow-flow-vascular-malformations-in-oral-region
#19
Harutsugi Abukawa, Michihide Kono, Hayato Hamada, Ayako Okamoto, Takafumi Satomi, Daichi Chikazu
BACKGROUND: Indications for laser therapy for slow-flow vascular malformations in the oral and maxillofacial regions have not been clearly documented. The authors aimed to estimate the frequency of resolution of slow-flow vascular malformations and to identify risk and prognostic factors associated with resolution in potassium titanyl phosphate (KTP) laser treatment. METHODS: This study was designed as a prospective cohort study. Patients who had diagnosed slow-flow vascular malformations were continuously assigned to receive KTP laser therapy...
January 30, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28139145/a-case-report-of-combination-treatment-with-potassium-titanyl-phosphate-laser-and-brimonidine-topical-gel-in-erythematotelangiectatic-rosacea
#20
Maja A Hofmann, G Kokolakis
Laser therapies have been shown to provide symptom improvement in patients with erythema and telangiectasia of rosacea; however, they are associated with side effects such as erythema. Combinatorial treatment with pharmacological agents and laser have demonstrated better efficacy, fewer side effects and continued long-term remission compared with monotherapies. A case of moderate facial erythema that responded well to combination treatment with brimonidine 3 mg/g gel and a treatment course of potassium-titanyl phosphate (KTP) laser therapy is presented, showing a reduction from baseline, maintained after final laser session, by applying brimonidine 3 mg/g gel daily...
August 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
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