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https://www.readbyqxmd.com/read/29777786/photoselective-vaporisation-of-the-bladder-for-the-management-of-radiation-cystitis-technique-and-initial-outcomes
#1
Claire Pascoe, Daniel Christidis, Todd Manning, Benjamin W Lamb, Declan G Murphy, Nathan Lawrentschuk
Objective To describe our technique utilising photoselective vaporisation of the bladder (PVB) for the management of haemorrhagic cystitis and initial results of 12 patients. Materials and Method An audit of theatre records of a single surgeon was performed to identify patients who had undergone PVB for management of radiation-cystitis. TECHNIQUE: Rigid cystoscopy was performed. Ureteric catheters were placed and active bleeding sites targeted to optimise vision. Ablation was commenced using the vaporize function...
May 16, 2018: Urology
https://www.readbyqxmd.com/read/29473939/overuse-of-antimicrobial-prophylaxis-in-low-risk-patients-undergoing-transurethral-resection-of-the-prostate
#2
Kathrin Bausch, Jan Adam Roth, Hans Helge Seifert, Andreas F Widmer
OBJECTIVE: To evaluate the current antimicrobial prophylaxis practices for low-risk patients undergoing transurethral resection of the prostate (TURP) or photoselective vaporisation of the prostate (PVP) in comparison with the antimicrobial prophylaxis recommendations of the European Association of Urology (EAU), which have been shown to effectively reduce infectious complications and antimicrobial resistance rates. METHODS: In May 2017, we sent an anonymous online -survey to board-certified urologists in Germany, Austria and Switzerland, by use of the database directory of the respective urology associations...
February 23, 2018: Swiss Medical Weekly
https://www.readbyqxmd.com/read/29460984/a-laboratory-high-throughput-glass-chamber-using-dynamic-headspace-td-gc-ms-method-for-the-analysis-of-whole-brassica-napus-l-plantlet-volatiles-under-cadmium-related-abiotic-stress
#3
Bastien Durenne, Alodie Blondel, Philippe Druart, Marie-Laure Fauconnier
INTRODUCTION: The dynamic headspace sampling technique using thermal desorption, gas chromatography-mass spectrometry (TD-GC/MS) is a powerful method for analysing plant emissions of volatile organic compounds (VOCs), and experiments performed in sterile and controlled conditions can be useful for VOC metabolism investigations. OBJECTIVE: The main purpose of this study was to set up a laboratory high-throughput glass chamber for whole plant volatiles analysis. Brassica napus L...
February 20, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29384498/imaging-of-vaporised-sub-micron-phase-change-contrast-agents-with-high-frame-rate-ultrasound-and-optics
#4
Shengtao Lin, Ge Zhang, Akaki Jamburidze, Melisse Chee, Chee Hau Leow, Valeria Garbin, Meng-Xing Tang
Phase-change ultrasound contrast agent (PCCA), or nanodroplet, shows promise as an alternative to the conventional microbubble agent over a wide range of diagnostic applications. Meanwhile, high-frame-rate (HFR) ultrasound imaging with microbubbles enables unprecedented temporal resolution compared to traditional contrast-enhanced ultrasound imaging. The combination of HFR ultrasound imaging and PCCAs can offer the opportunity to observe and better understand PCCA behaviour after vaporisation captures the fast phenomenon at a high temporal resolution...
March 9, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29380621/paediatric-laser-dentistry-part-4-soft-tissue-laser-applications
#5
G Olivi, C Caprioglio, M Olivi, M D Genovese
Lasers can provide effective soft tissues applications in children. All the wavelengths produce incision and vaporisation of oral tissues, together with a high bactericidal effect. The haemosthatic effect varys according to the wavelength used, and the choice of a visibile, near, medium or far infrared laser allows a better interaction with specific targets, gingiva, mucosa, frenum, or oral pathology.
December 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/29330776/second-hand-exposure-of-staff-administering-vaporised-cannabinoid-products-to-patients-in-a-hospital-setting
#6
Nadia Solowij, Peter Galettis, Samantha J Broyd, Peter de Krey, Jennifer H Martin
BACKGROUND: In many health settings, administration of medicinal cannabis poses significant implementation barriers including drug storage and safety for administering staff and surrounding patients. Different modes of administration also provide different yet potentially significant issues. One route that has become of clinical interest owing to the rapid onset of action and patient control of the inhaled amount (via breath timing and depth) is that of vaporisation of cannabinoid products...
March 2018: Drugs in R&D
https://www.readbyqxmd.com/read/29329896/open-prostatectomy-versus-180-w-xps-greenlight-laser-vaporization-long-term-functional-outcome-for-prostatic-adenomas-80-g
#7
C Lanchon, G Fiard, J-A Long, V Arnoux, D Carnicelli, Q Franquet, D Poncet, E Bey, J-B Lefrancq, S Grisard, N Peilleron, N Terrier, B Boillot, J-J Rambeaud, J-L Descotes, C Thuillier
INTRODUCTION: GreenLight photoselective vaporisation of the prostate (PVP) offers an endoscopic alternative to open prostatectomy (OP) for treatment of large adenomas. This study compares long-term functional outcome of both techniques in patients with Benign prostatic obstruction (BPO)>80g. MATERIAL AND METHOD: Data from patients who underwent surgical treatment for BPO>80g from January 2010 to February 2015 at our institution were retrospectively collected and compared according to surgical technique...
March 2018: Progrès en Urologie
https://www.readbyqxmd.com/read/29314284/the-mercury-problem-in-artisanal-and-small-scale-gold-mining
#8
REVIEW
Louisa J Esdaile, Justin M Chalker
Mercury-dependent artisanal and small-scale gold mining (ASGM) is the largest source of mercury pollution on Earth. In this practice, elemental mercury is used to extract gold from ore as an amalgam. The amalgam is typically isolated by hand and then heated-often with a torch or over a stove-to distill the mercury and isolate the gold. Mercury release from tailings and vaporized mercury exceed 1000 tonnes each year from ASGM. The health effects on the miners are dire, with inhaled mercury leading to neurological damage and other health issues...
January 3, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29272951/molecular-geometries-and-other-properties-of-h-2-o%C3%A2-agi-and-h-3-n%C3%A2-agi-as-characterised-by-rotational-spectroscopy-and-ab-initio-calculations
#9
Chris Medcraft, Eva Gougoula, Dror M Bittner, John C Mullaney, Susana Blanco, David P Tew, Nicholas R Walker, Anthony C Legon
The rotational spectra of H3 N⋯AgI and H2 O⋯AgI have been recorded between 6.5 and 18.5 GHz by chirped-pulse Fourier-transform microwave spectroscopy. The complexes were generated through laser vaporisation of a solid target of silver or silver iodide in the presence of an argon gas pulse containing a low concentration of the Lewis base. The gaseous sample subsequently undergoes supersonic expansion which results in cooling of rotational and vibrational motions such that weakly bound complexes can form within the expanding gas jet...
December 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29234537/day-care-bipolar-transurethral-resection-vs-photoselective-vaporisation-under-sedoanalgesia-a-prospective-randomised-study-of-the-management-of-benign-prostatic-hyperplasia
#10
Rajeev Sood, T Manasa, Hemant Goel, Ritesh Kumar Singh, Rajpal Singh, Nikhil Khattar, Praveen Pandey
Objective: To conduct a prospective randomised study comparing the safety, effectiveness and treatment outcomes in patients undergoing bipolar transurethral resection of the prostate (bTURP) and photoselective vaporisation of the prostate (PVP) under sedoanalgesia, as sedoanalgesia is a safe and effective technique suitable for minimally invasive endourological procedures and although studies have confirmed that both TURP and PVP are feasible under sedoanalgesia there are none comparing the two...
December 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/29221380/halogen-bonding-properties-of-4-iodopyrazole-and-4-bromopyrazole-explored-by-rotational-spectroscopy-and-ab-initio-calculations
#11
Graham A Cooper, Chris Medcraft, Josh D Littlefair, Thomas J Penfold, Nicholas R Walker
The combination of halogen- and hydrogen-bonding capabilities possessed by 4-bromopyrazole and 4-iodopyrazole has led to them being described as "magic bullets" for biochemical structure determination. Laser vaporisation was used to introduce each of these 4-halopyrazoles into an argon gas sample undergoing supersonic expansion prior to the recording of the rotational spectra of these molecules by chirped-pulse Fourier transform microwave spectroscopy. Data were obtained for four isotopologues of 4-bromopyrazole and two isotopologues of 4-iodopyrazole...
December 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29174658/-management-of-endometrioma
#12
Pauline Chauvet, Horace Roman, Anne-Sophie Gremeau, Michel Canis, Nicolas Bourdel
Preoperative evaluation: clinical examination, and research for associated lesions. Laparoscopic approach. Cystectomy: gold standard, conformed to the endometrioma pathophysiology (3 zones). Laser CO2 Plasmajet® vaporisation: important data lead to legitimate utilisation. Haemostasis: be patient! Use of bipolar energy sparingly. Look for other endometriotic lesions, and systematic treatment. Preoperative medical treatment not always useful. Postoperative treatment: decrease recurrence. Especially for patients with no immediate pregnancy desire...
December 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29051432/drug-vaping-from-the-dangers-of-misuse-to-new-therapeutic-devices
#13
V Varlet
Users of e-cigarettes are unwitting volunteers participating in a worldwide epidemiological study. Because of the obvious benefits of e-cigarettes compared with traditional cigarette smoking, these electronic devices have been introduced all around the world to support tobacco smoking cessation. Same potential harm reduction could be considered by cannabis vaping for marijuana smokers. However, the toxicities of liquids and aerosols remain under investigation because although the use of e-cigarettes is likely to be less harmful than traditional cigarette smoking, trace levels of contaminants have been identified...
December 16, 2016: Toxics
https://www.readbyqxmd.com/read/28985693/assessing-the-depth-of-isoflurane-anaesthesia-during-cardiopulmonary-bypass
#14
Ka Ting Ng, R Peter Alston, George Just, Chris McKenzie
INTRODUCTION: Bispectral index (BIS) and monitoring of end-tidal concentration may be associated with a reduction in the incidence of awareness during volatile-based general anaesthesia. An analogue of end-tidal concentration during cardiopulmonary bypass (CPB) is measuring exhausted isoflurane concentration from the oxygenator as an estimate to blood and, so, brain concentration. The aim of this study was to determine the relationships between oxygenator exhaust and blood concentrations of isoflurane and the BIS score during CPB when administering isoflurane into the sweep gas supply to the oxygenator...
March 2018: Perfusion
https://www.readbyqxmd.com/read/28960086/maternal-e-cigarette-exposure-in-mice-alters-dna-methylation-and-lung-cytokine-expression-in-offspring
#15
Hui Chen, Gerard Li, Yik Lung Chan, David G Chapman, Suporn Sukjamnong, Tara Nguyen, Tiara Annissa, Kristine C McGrath, Pawan Sharma, Brian G Oliver
E-cigarette usage is increasing, especially among the young, with both the general population and physicians perceiving them as a safe alternative to tobacco smoking. Worryingly, e-cigarettes are commonly used by pregnant women. As nicotine is known to adversely affect children in utero, we hypothesized that nicotine delivered via e-cigarettes would negatively affect lung development. To test this, we developed a mouse model of maternal e-vapor (nicotine and nicotine-free) exposure and investigated the impact on the growth and lung inflammation in both offspring and mothers...
March 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28951116/assessment-of-learning-curves-for-180-w-greenlight-xps-photoselective-vaporisation-of-the-prostate-a-multicentre-study
#16
Claire Bastard, Kevin Zorn, Benoit Peyronnet, Pierre Alain Hueber, Benjamin Pradère, Morgan Rouprêt, Vincent Misrai
BACKGROUND: The learning curve for photoselective vaporisation of the prostate (PVP) has never been assessed accurately. OBJECTIVE: To compare 180-W GreenLight XPS PVP learning curves for three surgeons with different levels of surgical experience and different institutional backgrounds. DESIGN, SETTING, AND PARTICIPANTS: A multicentre retrospective study of the first patients treated with PVP by three operators in three different centres (n=152 in group 1, n=112 in group 2, n=101 in group 3) was conducted...
September 23, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28736948/evaluating-the-efficacy-of-hydrogen-peroxide-vapour-against-foot-and-mouth-disease-virus-within-a-bsl4-biosafety-facility
#17
B M Petit, F C Almeida, T R Uchiyama, F O C Lopes, K H Tino, J Chewins
An evaluation was made of the efficacy of 35% hydrogen peroxide vapour (HPV) against foot-and-mouth disease virus (FMDV) in a biosafety facility. Biological indicators (BIs) were produced using three serotypes of FMDV, all with a titre of ≥106 TCID50 per ml. Fifteen BIs of each serotype were distributed across five locations, throughout a 30-m3 airlock chamber, producing a total of 45 BIs. Thirty-five percent HPV was generated and applied using a Bioquell vaporization module located in the centre of the chamber...
October 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28718828/tobacco-harm-reduction-with-vaporised-nicotine-thrive-the-study-protocol-of-an-uncontrolled-feasibility-study-of-novel-nicotine-replacement-products-among-people-living-with-hiv-who-smoke
#18
Stephanie Bell, Judith Dean, Charles Gilks, Mark A Boyd, Lisa Fitzgerald, Allyson Mutch, Peter Baker, Graham Neilsen, Coral E Gartner
Smoking is a leading cause of morbidity and premature mortality among people living with HIV (PLHIV), who have high rates of tobacco smoking. Vaporised nicotine products (VNPs) are growing in popularity as a quit aid and harm reduction tool. However, little is known about their acceptability and use among PLHIV. Using a pragmatic, uncontrolled, mixed methods design this exploratory clinical trial aims to examine the feasibility of conducting a powered randomised clinical trial of VNPs as a smoking cessation and harm reduction intervention among vulnerable populations, such as PLHIV who smoke tobacco...
July 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28718774/effects-of-microchannel-confinement-on-acoustic-vaporisation-of-ultrasound-phase-change-contrast-agents
#19
Shengtao Lin, Ge Zhang, Chee Hau Leow, Meng-Xing Tang
The sub-micron phase change contrast agent (PCCA) composed of a perfluorocarbon liquid core can be activated into gaseous state and form stable echogenic microbubbles for contrast-enhanced ultrasound imaging. It has shown great promise in imaging microvasculature, tumour microenvironment, and cancer cells. Although PCCAs have been extensively studied for different diagnostic and therapeutic applications, the effect of biologically geometrical confinement on the acoustic vaporisation of PCCAs is still not clear...
August 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28675799/dr-snow-killed-a-bird-the-genesis-of-pharmacokinetics-and-pharmacodynamics-in-anaesthesia
#20
L E Mather
This essay presents a pharmacologist's perspective of what would be now called 'preclinical research' and 'uncontrolled clinical trials' surrounding the first public demonstration by William Thomas Green Morton of painless surgery achieved by the inhalation of ether in a patient at the Massachusetts General Hospital on 16 October 1846. Of the many people who made history in those earliest days of surgical anaesthesia in both the United States and Great Britain, John Snow stands out for his personal research that spanned basic science and clinical medicine...
March 2017: Anaesthesia and Intensive Care
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