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Aris Koryllos, Astrid Althaus, Marcel Poels, Robin Joppich, Rolf Lefering, Frank Wappler, Wolfram Windisch, Corinna Ludwig, Erich Stoelben
BACKGROUND: Thoracotomy leads to chronic neuropathic pain in up to 50% of patients and is responsible for an impaired quality of life. Intercostal nerve injury has been suggested to be responsible for this pain. In the present study the impact of paravertebral intercostal neurectomy on post thoracotomy pain was assessed. METHODS: In this single center parallel-group randomized controlled trial patients underwent muscle sparing anterolateral thoracotomy and anatomical lung resection for lung cancer...
September 2016: Journal of Thoracic Disease
Ira L Leeds, Anne Fabrizio, Sara E Cosgrove, Elizabeth C Wick
Antibiotic resistance continues to receive national attention as a leading public health threat. In 2015, President Barack Obama proposed a National Action Plan to Combat Antibiotic-Resistant Bacteria to curb the rise of "superbugs," bacteria resistant to antibiotics of last resort. Whereas many antibiotics are prescribed appropriately to treat infections, there continue to be a large number of inappropriately prescribed antibiotics. Although much of the national attention with regards to stewardship has focused on primary care providers, there is a significant opportunity for surgeons to embrace this national imperative and improve our practices...
October 4, 2016: Annals of Surgery
Zynab Jawad, Fiona Carmichael, Nadine Houghton, Claire Bates
OBJECTIVE: The aim of the study was to review all cases referred for cone beam computed tomography (CBCT) to the department of dental radiology at the Leeds Dental Institute to aid diagnosis of root resorption associated with impacted canines. We aimed to establish if referral for and reporting of these CBCT assessments were in compliance with current guidelines. In addition, we introduced a new and innovative tool to aid reporting of CBCT images of root resorption associated with an impacted tooth...
October 7, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Ana Martín-Recio, Carlos Romero-Muñiz, Pablo Pou, Rubén Pérez, José M Gómez-Rodríguez
Nitrogen doping of graphene can be an efficient way of tuning its pristine electronic properties. Several techniques have been used to introduce nitrogen atoms on graphene layers. The main problem in most of them is the formation of a variety of C-N species that produce different electronic and structural changes on the 2D layer. Here we report on a method to obtain purely substitutional nitrogen on graphene on Pt(111) surfaces. A detailed experimental study performed in situ, under ultra-high vacuum conditions with scanning tunneling microscopy (STM), low energy electron diffraction (LEED) and Auger electron spectroscopy (AES) of the different steps on the preparation of the sample, has allowed us to gain insight into the optimal parameters for this growth method, that combines ion bombardment and annealing...
October 14, 2016: Nanoscale
Piers MacNaughton, John Spengler, Jose Vallarino, Suresh Santanam, Usha Satish, Joseph Allen
Green buildings are designed to have low environmental impacts and improved occupant health and well-being. Improvements to the built environment including ventilation, lighting, and materials have resulted in improved indoor environmental quality (IEQ) in green buildings, but the evidence around occupant health is currently centered around environmental perceptions and self-reported health. To investigate the objective impact of green buildings on health, we tracked IEQ, self-reported health, and heart rate in 30 participants from green and conventional buildings for two weeks...
August 1, 2016: Building and Environment
Ilias Goranitis, Joanna Coast, Ed Day, Alex Copello, Nick Freemantle, Jennifer Seddon, Carmel Bennett, Emma Frew
BACKGROUND: Measuring outcomes in economic evaluations of social care interventions is challenging because both health and well-being benefits are evident. The ICEpop CAPability instrument for adults (ICECAP-A) and the five-level EuroQol five-dimensional questionnaire (EQ-5D-5L) are measures potentially suitable for the economic evaluation of treatments for substance use disorders. Evidence for their validity in this context is, however, lacking. OBJECTIVES: To assess the construct validity of the ICECAP-A and the EQ-5D-5L in terms of convergent and discriminative validity and sensitivity to change on the basis of standard clinical measures (Clinical Outcomes in Routine Evaluation-Outcome Measure, Treatment Outcomes Profile, Interpersonal Support Evaluation List, Leeds Dependence Questionnaire, and Social Satisfaction Questionnaire)...
September 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
M Sanchez-Arenillas, E Mateo-Marti
We have demonstrated that the annealing process for cleaning pyrite surfaces is a critical parameter in promoting ordering on the surface and driving surface reactivity. Furthermore, we describe a spectroscopic surface characterization of the presence or absence of the surface ordering, as indicated by the Low Energy Electron Diffraction (LEED) pattern, as a function of the surface annealing process. Complementary X-ray photoemission spectroscopy (XPS) results provide evidence that longer annealing processes of over 3 hours repair the sulfur vacancies in the pyrite, making FeS species partially disappear in favor of FeS2 species...
October 5, 2016: Physical Chemistry Chemical Physics: PCCP
Andrea Polli, Luca Weis, Roberta Biundo, Michael Thacker, Andrea Turolla, Kostantinos Koutsikos, K Ray Chaudhuri, Angelo Antonini
BACKGROUND: The pathophysiology of pain in Parkinson's disease (PD) is still poorly understood, although it is conceivable that supraspinal mechanisms may be responsible for pain generation and maintenance. METHODS: We examined brain functional and anatomical changes associated with persistent pain in 40 PD patients, 20 with persistent pain and 20 without pain. We also examined 15 pain-free healthy participants of similar age, gender, and cognitive state as a control group...
October 5, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
Ivan Kutyrev, Beth Cleveland, Timothy Leeds, Gregory D Wiens
Flavobacterium psychrophilum (Fp) is the causative agent of bacterial cold water disease (BCWD) which causes appreciable economic losses in rainbow trout aquaculture. We previously reported development of a genetic line, designated ARS-Fp-R that exhibits higher survival relative to a susceptible line, designated ARS-Fp-S, following either laboratory or natural on-farm challenge. The objectives of this study were to determine the temporal kinetics of gene expression between experimentally-challenged ARS-Fp-R and ARS-Fp-S fish and the correlation between gene expression and pathogen load...
October 11, 2016: Fish & Shellfish Immunology
Jill J Hall, Steven J Katz, M Ken Cor
OBJECTIVES: Patient satisfaction is known to increase with pharmacist intervention in general outpatient clinics and with nurse-led care in rheumatology clinics. The aim of the present study was to describe and compare patient satisfaction with two different types of care: a pharmacist physician collaborative model and a traditional physician model in a rheumatology clinic setting. METHODS: A cross-sectional survey of inflammatory arthritis patients seen during a follow-up visit in Edmonton, Alberta, Canada, was conducted over a ten-week period...
September 30, 2016: Musculoskeletal Care
James L Grafe, Jennifer Owen, J Eduardo Villarreal-Barajas, Rao F H Khan
A new megavoltage (MV) energy was recently introduced on Varian TrueBeam linear accelerators for imaging applications. This work describes the experimental characterization of a 2.5 MV inline portal imaging beam for commissioning, routine clinical use, and quality assurance purposes. The beam quality of the 2.5 MV beam was determined by measuring a percent depth dose, PDD, in water phantom for 10 × 10 cm2 field at source-to-surface distance 100 cm with a CC13 ion chamber, plane parallel Markus chamber, and GafChromic EBT3 film...
2016: Journal of Applied Clinical Medical Physics
Theodoros H Tosounidis, Peter V Giannoudis
Posterior wall (PW) fractures are the most common fractures requiring surgical fixation in acetabular surgery. Extra-articular screw placement must be confirmed intra-operatively. Herein we describe the use of the Inlet and Obturator Oblique view (the "Leeds view") for screw placement in elementary PW and in Associated Both Column with Posterior Wall (ABC/PW) fractures. We highlight our steps to ensure accurate placement in a small series of patients.
September 24, 2016: Journal of Orthopaedic Trauma
Ch Ahrens, J I Flege, C Jaye, D A Fischer, Th Schmidt, J Falta
The growth of 3, 4, 9, 10-perylene tetracarboxylic dianhydride (PTCDA) on the Ga-polar GaN(0 0 0 1) surface has been studied by x-ray photoelectron spectroscopy (XPS), spot profile analysis low-energy electron diffraction (SPA-LEED), near edge x-ray absorption fine structure (NEXAFS), and scanning tunneling microscopy (STM). The stoichiometric ratios derived from XPS indicate that the molecules remain intact upon adsorption on the surface. Furthermore, no chemical shifts can be observed in the C 1s and O 1s core levels with progressing deposition of PTCDA, suggesting none or only weak interactions between the molecules and the substrate...
September 26, 2016: Journal of Physics. Condensed Matter: An Institute of Physics Journal
S J O'Shea, J R Davies, J A Newton-Bishop
Survival from melanoma is influenced by several, well-established clinical and histopathological factors, e.g. age, Breslow thickness and microscopic ulceration. We (the Section of Epidemiology and Biostatistics, University of Leeds) have carried out research to better understand the biological basis for these observations. Preliminary results indicated a protective role for vitamin D in melanoma relapse and that higher vitamin D was associated with thinner primary melanomas. Funding from the British Skin Foundation enabled JNB to establish a study of the effects of vitamin A in melanoma...
October 2016: British Journal of Dermatology
Anastasia C Hadjiconstanti, Gerasimos A T Messaris, Konstantinos C Thomopoulos, Aikaterini G Solomou, George S Panayiotakis
A phantom-based study is presented aiming to optimise patient dose and image quality (IQ) in endoscopic retrograde cholangiopancreatography procedures, utilising a fluoroscopy system equipped with a flat panel detector. The patient thickness was simulated with various polymethyl methacrylate slabs, whilst IQ was evaluated using the Leeds test object. The main factors evaluated were phantom thickness, distance between phantom and detector, field of view and pulse rate. For all these factors, the dosemetric indices, entrance surface air kerma (ESAK) rate and ESAK per pulse, as well as the IQ parameters, signal-to-noise ratio and high contrast spatial resolution, were measured...
September 24, 2016: Radiation Protection Dosimetry
Joe De Beer, Michael Schaer, Kim Latendresse, Sumit Raniga, Beat K Moor, Matthias A Zumstein
Stabilizing the acromioclavicular joint in the vertical and horizontal planes is challenging, and most current techniques do not reliably achieve this goal. The BiPOD repair is an arthroscopically assisted procedure performed with image intensifier guidance that reconstructs the coracoclavicular ligaments as well as the acromioclavicular ligaments to achieve bidirectional stability. Repair is achieved with a combination of 2-mm FiberTape (Arthrex, Naples, Florida) and 20-mm Poly-Tape (Neoligaments, Leeds, England) to achieve rigid repair, prevent bone abrasion, and promote tissue ingrowth...
September 19, 2016: Orthopedics
Karina J Lewis, Leo Ross, Michel W Coppieters, Bill Vicenzino, Annina B Schmid
INTRODUCTION: Carpal tunnel syndrome (CTS) is a prevalent upper limb condition that results in significant individual and socioeconomic costs. Large patient numbers, long outpatient waiting times and traditional referral pathways in public health systems create delays in accessing treatment for this condition. Alternative care pathways aimed at streamlining access to treatment and reducing the need for surgical intervention warrant further investigation. METHODS: A randomised, single-blind controlled clinical trial will be conducted...
2016: BMJ Open
Manu K Nayar, Bharat Paranandi, Muhammad F Dawwas, John S Leeds, Antony Darne, Beate Haugk, Debasis Majumdar, Muna M Ahmed, Kofi W Oppong
BACKGROUND AND AIMS: A new core biopsy needle with a novel tip, opposing bevel and sheath design has recently been introduced for endoscopic ultrasound-guided biopsy (EUS-FNB). The diagnostic utility of this needle for differentiating solid pancreatic masses is currently unknown. The aim of this study was to compare the diagnostic performance and yield for tissue acquisition from solid pancreatic lesions of the opposing bevel needle with those of a reverse bevel EUS-FNB needle. METHODS: Consecutive patients with solid pancreatic masses undergoing EUS-FNB using the opposing bevel (n=101) and the reverse bevel (n=100) core biopsy needles were included in the study...
September 12, 2016: Gastrointestinal Endoscopy
Charlotte Trumper
Continuous renal replacement therapy (CRRT) is widely used in the management of critically ill patients with acute kidney injury. It requires effective anticoagulation of the extracorporeal blood circuit. Although heparin is the most commonly prescribed anticoagulant, there are issues associated with heparin, and there has been increasing interest in regional citrate anticoagulation as an alternative. In 2013, The Leeds Teaching Hospitals NHS Trust switched from heparin to citrate anticoagulant for CRRT in intensive care units (ICUs) across the Trust...
September 8, 2016: British Journal of Nursing: BJN
Edem Barnor-Ahiaku
BACKGROUND: Smartphones and tablets are being used widely in the Western World creating benefits in healthcare. The Ministry of Health in Ghana has an e-Health strategy, with the aim of integrating such resources into healthcare. Whilst there are numerous mHealth projects going on in Ghana, there is little evidence of doctors using such devices in their practice. METHOD: A qualitative study was undertaken in Korle-Bu Teaching Hospital. Random sampling was used to identify House Officers, who engaged in semi-structured interviews...
March 2016: Ghana Medical Journal
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