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https://www.readbyqxmd.com/read/27922252/update-on-new-stents-and-protection-devices-for-carotid-artery-stenting-what-we-know-what-we-learnt-recently-and-what-we-need-to-know
#1
Dimitrios N Nikas, Xenofon Makos, Tomoyuki Umemoto, George Liappas, Andrea Pacchioni, Narek Zakarian, Bernhard Reimers
Carotid artery stenting (CAS) is considered an alternative option to carotid endarterectomy (CEA) for significant carotid stenosis, in both symptomatic and asymptomatic patients. Comparing to CEA, CAS offers significant advantages. The most important arise from the minimally invasive nature of the procedure, which reduces the surgical complications and adds significant comfort to the patient, without compromising the efficacy. Nowadays, CAS can achieve acute and long-term outcome results comparable to CEA, maintaining low rates of periprocedural embolic events...
December 6, 2016: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27922251/endovascular-prevention-and-treatment-of-stroke-related-to-extracranial-carotid-artery-disease
#2
Leonardo Rangel-Castilla, Gary B Rajah, Hakeem J Shakir, Jason M Davies, Kenneth V Snyder, Adnan H Siddiqui, Elad I Levy, L N Hopkins
Acute ischemic stroke (AIS) is the leading cause of premature mortality and morbidity worldwide for both men and women. Extracranial carotid artery stenosis/occlusion is responsible for approximately 11.5%% of ischemic strokes, whereas extracranial large vessel disease comprises roughly 16.6% of ischemic strokes. Carotid artery disease has been the source of significant debate among neurovascular and cardiovascular specialists, as well as vascular surgeons, as to the best method of revascularization, surgical reconstruction versus endovascular recanalization...
December 6, 2016: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27921633/healthcare-resources-are-inadequate-to-address-the-burden-of-illness-among-hiv-infected-male-prisoners-in-malaysia
#3
Joseph Bick, Gabriel Culbert, Haider A Al-Darraji, Clayton Koh, Veena Pillai, Adeeba Kamarulzaman, Frederick Altice
Purpose Criminalization of drug use in Malaysia has concentrated people who inject drugs (PWID) and people living with HIV into prisons where health services are minimal and HIV-related mortality is high. Few studies have comprehensively assessed the complex health needs of this population. The paper aims to discuss these issues. Design/methodology/approach From October 2012 through March 2013, 221 sequentially selected HIV-infected male prisoners underwent a comprehensive health assessment that included a structured history, physical examination, and clinically indicated diagnostic studies...
December 19, 2016: International Journal of Prisoner Health
https://www.readbyqxmd.com/read/27921444/estimating-cancer-induction-risk-from-abdominopelvic-scanning-with-6-and-16-slice-computed-tomography
#4
Parinaz Mehnati, Ayoub Amirnia, Nasrollah Jabbari
PURPOSE: The biological effects of ionizing radiation (BEIRVII) report estimates that the risk of getting cancer from radiation is increased by about a third from current regulation risk levels. The propose of this study was to estimate cancer induction risk from abdominopelvic computed tomography (CT) scanning of adult patients using 6- and 16-slice CT scanners. MATERIALS AND METHODS: A cross-sectional study on 200 patients with abdominopelvic CT scan in 6- and 16-slice scanners was conducted...
December 6, 2016: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/27921372/a-fuzzy-neural-network-sliding-mode-controller-for-vibration-suppression-in-robotically-assisted-minimally-invasive-surgery
#5
Hongqiang Sang, Chenghao Yang, Fen Liu, Jintian Yun, Guoguang Jin
BACKGROUND: It is very important for robotically assisted minimally invasive surgery to achieve a high-precision and smooth motion control. However, the surgical instrument tip will exhibit vibration caused by nonlinear friction and unmodeled dynamics, especially when the surgical robot system is attempting low-speed, fine motion. METHODS: A fuzzy neural network sliding mode controller (FNNSMC) is proposed to suppress vibration of the surgical robotic system. Nonlinear friction and modeling uncertainties are compensated by a Stribeck model, a radial basis function (RBF) neural network and a fuzzy system, respectively...
December 2016: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/27921325/hiv-risk-perception-hiv-knowledge-and-sexual-risk-behaviors-among-transgender-women-in-south-florida
#6
Joseph P De Santis, Shayne D Hauglum, Diego A Deleon, Elias Provencio-Vasquez, Allan E Rodriguez
OBJECTIVES: Transgender women experience a variety of factors that may contribute to HIV risk. The purpose of this study was to explore links among HIV risk perception, knowledge, and sexual risk behaviors of transgender women. DESIGN AND SAMPLE: A descriptive, correlational study design was used. Fifty transgender women from the South Florida area were enrolled in the study. MEASURES: Transgender women completed a demographic questionnaire and standardized instruments measuring HIV risk perception, knowledge, and sexual risk behaviors...
December 5, 2016: Public Health Nursing
https://www.readbyqxmd.com/read/27921160/european-society-of-urogenital-radiology-esur-guidelines-mr-imaging-of-pelvic-endometriosis
#7
M Bazot, N Bharwani, C Huchon, K Kinkel, T M Cunha, A Guerra, L Manganaro, L Buñesch, A Kido, K Togashi, I Thomassin-Naggara, A G Rockall
: Endometriosis is a common gynaecological condition of unknown aetiology that primarily affects women of reproductive age. The accepted first-line imaging modality is pelvic ultrasound. However, magnetic resonance imaging (MRI) is increasingly performed as an additional investigation in complex cases and for surgical planning. There is currently no international consensus regarding patient preparation, MRI protocols or reporting criteria. Our aim was to develop clinical guidelines for MRI evaluation of pelvic endometriosis based on literature evidence and consensus expert opinion...
December 5, 2016: European Radiology
https://www.readbyqxmd.com/read/27921158/long-term-outcome-of-percutaneous-alcohol-embolization-combined-with-percutaneous-vertebroplasty-in-aggressive-vertebral-hemangiomas-with-epidural-extension
#8
Kévin Premat, Frédéric Clarençon, Évelyne Cormier, Jugurtha Mahtout, Raphaël Bonaccorsi, Vincent Degos, Jacques Chiras
OBJECTIVES: To evaluate, on a long-term basis, the safety and effectiveness of percutaneous alcohol embolization (PAE) combined with percutaneous vertebroplasty (PVP) as a sole treatment for aggressive vertebral haemangiomas (AVHs) with epidural extension. METHODS: From 1996 to 2015, 26 consecutive patients (15 women [58%] and 11 men; mean age 51.8 years [range: 19-75 years]) underwent PAE combined with PVP (performed at day 15) for the treatment of 27 AVHs with epidural extension...
December 5, 2016: European Radiology
https://www.readbyqxmd.com/read/27921082/global-role-of-cyclic-amp-signaling-in-ph-dependent-responses-in-candida-albicans
#9
Jeffrey M Hollomon, Nora Grahl, Sven D Willger, Katja Koeppen, Deborah A Hogan
Candida albicans behaviors are affected by pH, an important environmental variable. Filamentous growth is a pH-responsive behavior, where alkaline conditions favor hyphal growth and acid conditions favor growth as yeast. We employed filamentous growth as a tool to study the impact of pH on the hyphal growth regulator Cyr1, and we report that downregulation of cyclic AMP (cAMP) signaling by acidic pH contributes to the inhibition of hyphal growth in minimal medium with GlcNAc. Ras1 and Cyr1 are generally required for efficient hyphal growth, and the effects of low pH on Ras1 proteolysis and GTP binding are consistent with diminished cAMP output...
November 2016: MSphere
https://www.readbyqxmd.com/read/27921071/validation-of-automatic-joint-space-width-measurements-in-hand-radiographs-in-rheumatoid-arthritis
#10
Olga Schenk, Yinghe Huo, Koen L Vincken, Mart A van de Laar, Ina H H Kuper, Kees C H Slump, Floris P J G Lafeber, Hein J Bernelot Moens
Computerized methods promise quick, objective, and sensitive tools to quantify progression of radiological damage in rheumatoid arthritis (RA). Measurement of joint space width (JSW) in finger and wrist joints with these systems performed comparable to the Sharp-van der Heijde score (SHS). A next step toward clinical use, validation of precision and accuracy in hand joints with minimal damage, is described with a close scrutiny of sources of error. A recently developed system to measure metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints was validated in consecutive hand images of RA patients...
October 2016: Journal of Medical Imaging
https://www.readbyqxmd.com/read/27921070/accuracy-of-patient-specific-organ-dose-estimates-obtained-using-an-automated-image-segmentation-algorithm
#11
Taly Gilat Schmidt, Adam S Wang, Thomas Coradi, Benjamin Haas, Josh Star-Lack
The overall goal of this work is to develop a rapid, accurate, and automated software tool to estimate patient-specific organ doses from computed tomography (CT) scans using simulations to generate dose maps combined with automated segmentation algorithms. This work quantified the accuracy of organ dose estimates obtained by an automated segmentation algorithm. We hypothesized that the autosegmentation algorithm is sufficiently accurate to provide organ dose estimates, since small errors delineating organ boundaries will have minimal effect when computing mean organ dose...
October 2016: Journal of Medical Imaging
https://www.readbyqxmd.com/read/27921057/endoscopic-management-of-an-intramural-sinus-leak-after-per-oral-endoscopic-myotomy
#12
Haider Al Taii, Bradley Confer, Scott Gabbard, Matthew Kroh, Sunguk Jang, John Rodriguez, Mansour A Parsi, John J Vargo, Jeffrey Ponsky, Amit Bhatt
Per-oral endoscopic myotomy (POEM) was developed less than a decade ago for the treatment of achalasia. Its minimally invasive approach and the favorable short-term outcome have led to rapid adoption of the technique throughout the world. As with any new technique, there will be adverse events, and it is important that effective treatments for these adverse events be discussed. We present a case of successful endoscopic management of an intramural sinus leak after a POEM procedure using tandem fully covered esophageal stents...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27921028/two-year-results-after-convective-radiofrequency-water-vapor-thermal-therapy-of-symptomatic-benign-prostatic-hyperplasia
#13
Christopher M Dixon, Edwin Rijo Cedano, Dalibor Pacik, Vítězslav Vit, Gabriel Varga, Lennart Wagrell, Thayne R Larson, Lance A Mynderse
OBJECTIVE: The objective of this study was to assess the effectiveness and safety of convective radiofrequency (RF) water vapor thermal therapy in men with lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH); a pilot study design with 2-year follow-up evaluations. PATIENTS AND METHODS: Men aged ≥45 years with an International Prostate Symptom Score ≥13, a maximum urinary flow rate (Qmax) ≤15 mL/s, and prostate volume 20-120 cc were enrolled in a prospective, open-label pilot study using convective RF water vapor energy with the Rezūm System...
2016: Research and Reports in Urology
https://www.readbyqxmd.com/read/27920987/spontaneous-perforation-of-the-upj-a-case-report-and-review-of-the-literature
#14
K Searvance, J Jackson, N Schenkman
Spontaneous rupture of the ureter is an uncommon condition defined by non-traumatic extravasation of urine. Causative factors leading to rupture include urinary calculi, malignancies, instrumentation or trauma. Ureteral rupture can lead to numerous complications, including abscess formation, urinomas, and urosepsis. Minimal literature is available regarding spontaneous ureteral perforation, especially at the ureteropelvic junction. We present a rare case of spontaneous perforation of the ureter at the ureteropelvic junction caused by an undiagnosed non-compliant bladder...
January 2017: Urology Case Reports
https://www.readbyqxmd.com/read/27920960/towards-a-competency-based-ethical-and-socially-valid-approach-to-the-supervision-of-applied-behavior-analytic-trainees
#15
Laura B Turner, Aaron J Fischer, James K Luiselli
Competency-based supervision of trainees has recently come to the forefront of behavior analytic practice; however, there are minimal data to support the effectiveness of various supervision practices on trainee outcomes. Accordingly, this paper is intended to spark further discussion and research activity regarding the supervision of those seeking to become Board Certified Behavior Analysts (BCBA). We present a practice model and considerations for supervising applied behavior analytic trainees consistent with the Behavior Analyst Certification Board (BACB) Supervisor Training Curriculum Outline (Behavior Analyst Certification Board, 2012b), the Professional and Ethical Compliance Code for Behavior Analysts (Behavior Analyst Certification Board, 2014), and extant literature from behavior analysis and related fields...
December 2016: Behavior Analysis in Practice
https://www.readbyqxmd.com/read/27920956/grassland-productivity-in-response-to-nutrient-additions-and-herbivory-is-scale-dependent
#16
Erica A H Smithwick, Douglas C Baldwin, Kusum J Naithani
Vegetation response to nutrient addition can vary across space, yet studies that explicitly incorporate spatial pattern into experimental approaches are rare. To explore whether there are unique spatial scales (grains) at which grass response to nutrients and herbivory is best expressed, we imposed a large (∼3.75 ha) experiment in a South African coastal grassland ecosystem. In two of six 60 × 60 m grassland plots, we imposed a scaled sampling design in which fertilizer was added in replicated sub-plots (1 × 1 m, 2 × 2 m, and 4 × 4 m)...
2016: PeerJ
https://www.readbyqxmd.com/read/27920887/preliminary-study-on-cost-effective-l-tryptophan-production-from-indole-and-l-serine-by-e-coli-cells
#17
Tahereh Sadeghiyan-Rizi, Jamshid Fooladi, Sima Sadrai
BACKGROUND: L-tryptophan is used widespread in the pharmaceutical industry. The majority of L-Trp production depends on microbial processes that produce L-tryptophan from indole and L-serine. These processes are very costly due to the costs of precursors, especially L-serine. Use of inexpensive substitutions as the L-serine source of L-tryptophan production enables us to reach a cost-effective process. In this paper, effect of Triton X-100 on L-Trp production and the ability to use Iranian cane molasses as inexpensive L-serine source was investigated...
October 2016: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/27920833/the-association-between-defibrillation-shock-energy-and-acute-cardiac-damage-in-patients-with-implantable-cardioverter-defibrillators
#18
Daisuke Ishigaki, Daisuke Kutsuzawa, Takanori Arimoto, Tadateru Iwayama, Naoaki Hashimoto, Yu Kumagai, Satoshi Nishiyama, Hiroki Takahashi, Tetsuro Shishido, Takuya Miyamoto, Joji Nitobe, Akio Fukui, Tetsu Watanabe, Isao Kubota
BACKGROUND: The aim of this study was to establish a minimally invasive defibrillation testing (DT) protocol for patients with implantable cardioverter defibrillators (ICDs). METHODS: Two different energy DTs were performed, immediately after (15 J-DT) and 7 days after (≤10 J-DT) device implantation, in 20 consecutive ICD implantation patients. Cardiac-troponin T (c-TNT) and heart-type fatty acid binding protein (H-FABP) levels were measured before implantation, 2 h after implantation, and 1 day after each DT...
December 2016: Journal of Arrhythmia
https://www.readbyqxmd.com/read/27920783/genomic-tools-in-pearl-millet-breeding-for-drought-tolerance-status-and-prospects
#19
REVIEW
Desalegn D Serba, Rattan S Yadav
Pearl millet [Penisetum glaucum (L) R. Br.] is a hardy cereal crop grown in the arid and semiarid tropics where other cereals are likely to fail to produce economic yields due to drought and heat stresses. Adaptive evolution, a form of natural selection shaped the crop to grow and yield satisfactorily with limited moisture supply or under periodic water deficits in the soil. Drought tolerance is a complex polygenic trait that various morphological and physiological responses are controlled by 100s of genes and significantly influenced by the environment...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27920770/the-use-of-transposon-insertion-sequencing-to-interrogate-the-core-functional-genome-of-the-legume-symbiont-rhizobium-leguminosarum
#20
Benjamin J Perry, Mir S Akter, Christopher K Yost
The free-living legume symbiont Rhizobium leguminosarum is of significant economic value because of its ability to provide fixed nitrogen to globally important leguminous food crops, such as peas and lentils. Discovery based research into the genetics and physiology of R. leguminosarum provides the foundational knowledge necessary for understanding the bacterium's complex lifestyle, necessary for augmenting its use in an agricultural setting. Transposon insertion sequencing (INSeq) facilitates high-throughput forward genetic screening at a genomic scale to identify individual genes required for growth in a specific environment...
2016: Frontiers in Microbiology
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