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https://www.readbyqxmd.com/read/28428081/intraoperative-image-guidance-compared-with-free-hand-methods-in-adolescent-idiopathic-scoliosis-posterior-spinal-surgery-a-systematic-review-on-screw-related-complications-and-breach-rates
#1
Andrew Chan, Eric Parent, Karl Narvacan, Cindy San, Edmond Lou
BACKGROUND CONTEXT: Severe adolescent idiopathic scoliosis (AIS) is a 3D spinal deformity requiring surgery to stop curve progression. Posterior spinal instrumentation and fusion with pedicle screws is the standard surgery for AIS curve correction. Vascular and neurologic complications related to screw-malpositioning are concerns in surgeries for AIS. Breach rates are reported at 15.7%, implant-related complications at 1.1% and neurologic deficit at 0.8%. Free-hand screw insertion remains the prevailing method of screw placement while image guidance has been suggested to improve placement accuracy...
April 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28425458/anatomy-of-terminal-moraine-segments-and-implied-lake-stability-on-ngozumpa-glacier-nepal-from-electrical-resistivity-tomography-ert
#2
Sarah S Thompson, Bernd Kulessa, Douglas I Benn, Jordan R Mertes
Moraine-dammed lakes at debris-covered glaciers are becoming increasingly common and pose significant outburst flood hazards if the dam is breached. While moraine subsurface structure and internal processes are likely to influence dam stability, only few sites have so far been investigated. We conducted electrical resistivity tomography (ERT) surveys at two sites on the terminal moraine complex of the Ngozumpa Glacier, Nepal, to aid assessment of future terminus stability. The resistivity signature of glacier ice at the site (100-15 kΩ m) is more consistent with values measured from cold glacier ice and while this may be feasible, uncertainties in the data inversion introduce ambiguity to this thermal interpretation...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423838/computable-information-governance-contracts
#3
James Cunningham, Gary Leeming, John Ainsworth
The risks of relinquishing control of electronic healthcare data for re-use in research are mitigated by the use of data sharing agreements and information governance procedures. These exist as legal, or quasi-legal, textual documents exchanged between data owners. Their existence outside of the digital realm leads to a situation where breaches of an agreement can only be detected and acted on post-hoc. We introduce the design of a system of computable contracts, specified formally, that can enforce the rules of data sharing agreements within the bounds of electronic health care systems...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28417146/repeated-mild-traumatic-brain-injury-in-female-rats-increases-lipid-peroxidation-in-neurons
#4
Nathanael J Yates, Stephen Lydiard, Brooke Fehily, Gillian Weir, Aaron Chin, Carole A Bartlett, Jacqueline Alderson, Melinda Fitzgerald
Negative outcomes of mild traumatic brain injury (mTBI) can be exacerbated by repeated insult. Animal models of repeated closed-head mTBI provide the opportunity to define acute pathological mechanisms as the number of mTBI increases. Furthermore, little is known about the effects of mTBI impact site, and how this may affect brain function. We use a closed head, weight drop model of mTBI that allows head movement following impact, in adult female rats to determine the role of the number and location of mTBI on brain pathology and behaviour...
April 17, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28403047/risk-factors-in-children-older-than-5-years-with-pneumococcal-meningitis-data-from-a-national-network
#5
Fanny Hénaff, Corinne Levy, Robert Cohen, Capucine Picard, Emmanuelle Varon, Christèle Gras Le Guen, Elise Launay
BACKGROUND: The occurrence of meningitis in children >5 years old may be associated with specific predisposing factors that can be anatomic, such as cerebrospinal fluid fistula or breach, or related to genetic susceptibility or N inborn or acquired immunologic defect. This study aimed to assess the anatomical and immunologic risk factors in children >5 years old with pneumococcal meningitis and prospectively enrolled in the French national meningitis network. METHODS: We analyzed all data for children who were 5-15 years old with a diagnosis of pneumococcal meningitis between 2001 and 2013...
May 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28396408/size-selective-opening-of-the-blood-brain-barrier-by-targeting-endothelial-sphingosine-1-phosphate-receptor-1
#6
Keisuke Yanagida, Catherine H Liu, Giuseppe Faraco, Sylvain Galvani, Helen K Smith, Nathalie Burg, Josef Anrather, Teresa Sanchez, Costantino Iadecola, Timothy Hla
The vasculature of the central nervous system (CNS) forms a selective barrier termed the blood-brain barrier (BBB). Disruption of the BBB may contribute to various CNS diseases. Conversely, the intact BBB restricts efficient penetration of CNS-targeted drugs. Here, we report the BBB-regulatory role of endothelial sphingosine 1-phosphate (S1P) receptor-1, a G protein-coupled receptor known to promote the barrier function in peripheral vessels. Endothelial-specific S1pr1 knockout mice (S1pr1(iECKO) ) showed BBB breach for small-molecular-mass fluorescence tracers (<3 kDa), but not larger tracers (>10 kDa)...
April 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28384777/hospital-risk-of-data-breaches
#7
Ge Bai, John Xuefeng Jiang, Renee Flasher
No abstract text is available yet for this article.
April 3, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28379517/convex-rod-derotation-maneuver-on-lenke-type-i-adolescent-idiopathic-scoliosis
#8
Huang Zifang, Fan Hengwei, Deng Yaolong, Sui Wenyuan, Wang Qifei, Cao Lei, Fobao Li, Yang Junlin
BACKGROUND: Convex-rod derotation may have potential advantages for adolescent idiopathic scoliosis (AIS) correction; however, study of this technique has been limited. OBJECTIVE: To compare the radiographic outcomes of Lenke type I AIS patients treated by the convex- or concave-rod derotation maneuvers. METHODS: A retrospective study was designed to compare 2 cohorts, including 81 Lenke type I AIS patients treated with convex-rod derotation (n = 38) or concave-rod derotation (n = 43), between July 2008 and September 2012...
April 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28371495/safe-zone-of-posterior-screw-insertion-for-talar-neck-fractures-on-3-dimensional-reconstruction-model
#9
Jian-Qun Wu, Sheng-Hui Ma, Song Liu, Cheng-He Qin, Dan Jin, Bin Yu
OBJECTIVE: To investigate the optimal posterior screw placement and the geometry of safe zones for screw insertion in the talar neck. METHODS: Computed tomography data for 15 normal feet were imported into Mimics 10.01 software for 3-dimensional reconstruction; 4.0-mm-diameter screws were simulated from the lateral tubercle of the posterior process of the talus to the talar head. The range of screw paths trajectories and screw lengths at nine locations that did not breach the cortex of the talus were evaluated...
February 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28359194/data-monitoring-committees-promoting-best-practices-to-address-emerging-challenges
#10
Thomas R Fleming, David L DeMets, Matthew T Roe, Janet Wittes, Karim A Calis, Amit N Vora, Alan Meisel, Raymond P Bain, Marvin A Konstam, Michael J Pencina, David J Gordon, Kenneth W Mahaffey, Charles H Hennekens, James D Neaton, Gail D Pearson, Tomas Lg Andersson, Marc A Pfeffer, Susan S Ellenberg
BACKGROUND AND PURPOSE: Data monitoring committees are responsible for safeguarding the interests of study participants and assuring the integrity and credibility of clinical trials. The independence of data monitoring committees from sponsors and investigators is essential in achieving this mission. Creative approaches are needed to address ongoing and emerging challenges that potentially threaten data monitoring committees' independence and effectiveness. METHODS: An expert panel of representatives from academia, industry and government sponsors, and regulatory agencies discussed these challenges and proposed best practices and operating principles for effective functioning of contemporary data monitoring committees...
April 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28336793/compelling-truth-legal-protection-of-the-infosphere-against-big-data-spills
#11
Burkhard Schafer
The paper explores whether legal and ethical concepts that have been used to protect the natural environment can also be leveraged to protect the 'infosphere', a neologism used by Luciano Floridi to characterize the totality of the informational environment. We focus, in particular, on the interaction between allocation of (intellectual) property rights and 'communication duties', in particular, data breach notification duties.This article is part of the themed issue 'The ethical impact of data science'.
December 28, 2016: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28332097/novel-and-advanced-techniques-for-complex-ivc-filter-retrieval
#12
REVIEW
Dania Daye, T Gregory Walker
Inferior vena cava (IVC) filter placement is indicated for the treatment of venous thromboembolism (VTE) in patients with a contraindication to or a failure of anticoagulation. With the advent of retrievable IVC filters and their ease of placement, an increasing number of such filters are being inserted for prophylaxis in patients at high risk for VTE. Available data show that only a small number of these filters are retrieved within the recommended period, if at all, prompting the FDA to issue a statement on the need for their timely removal...
April 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28321680/environmental-effects-of-crude-oil-spill-on-the-physicochemical-and-hydrobiological-characteristics-of-the-nun-river-niger-delta
#13
Augustine O Ifelebuegu, Justina E Ukpebor, Anita U Ahukannah, Ernest O Nnadi, Stephen C Theophilus
Oil spill pollution has remained a source of several international litigations in the Niger Delta region of Nigeria. In this paper, we examined the impacts of small recurrent crude oil spills on the physicochemical, microbial and hydrobiological properties of the Nun River, a primary source of drinking water, food and recreational activities for communities in the region. Samples were collected from six sampling points along the stretch of the lower Nun River over a 3-week period. Temperature, pH salinity, turbidity, total suspended solids, total dissolved solids, dissolved oxygen, phosphate, nitrate, heavy metals, BTEX, PAHs and microbial and plankton contents were assessed to ascertain the quality and level of deterioration of the river...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28275207/whip-rule-breaches-in-a-major-australian-racing-jurisdiction-welfare-and-regulatory-implications
#14
Jennifer Hood, Carolyn McDonald, Bethany Wilson, Phil McManus, Paul McGreevy
Whip use in horseracing is increasingly being questioned on ethical, animal welfare, social sustainability, and legal grounds. Despite this, there is weak evidence for whip use and its regulation by Stewards in Australia. To help address this, we characterised whip rule breaches recorded by Stewards using Stewards Reports and Race Diaries from 2013 and 2016 in New SouthWales (NSW) and the Australian Capital Territory (ACT). There were more recorded breaches at Metropolitan (M) than Country (C) or Provincial (P) locations, and by riders of horses that finished first, second, or third than by riders of horses that finished in other positions...
January 16, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28270197/village-based-spatio-temporal-cluster-analysis-of-the-schistosomiasis-risk-in-the-poyang-lake-region-china
#15
Congcong Xia, Robert Bergquist, Henry Lynn, Fei Hu, Dandan Lin, Yuwan Hao, Shizhu Li, Yi Hu, Zhijie Zhang
BACKGROUND: The Poyang Lake Region, one of the major epidemic sites of schistosomiasis in China, remains a severe challenge. To improve our understanding of the current endemic status of schistosomiasis and to better control the transmission of the disease in the Poyang Lake Region, it is important to analyse the clustering pattern of schistosomiasis and detect the hotspots of transmission risk. RESULTS: Based on annual surveillance data, at the village level in this region from 2009 to 2014, spatial and temporal cluster analyses were conducted to assess the pattern of schistosomiasis infection risk among humans through purely spatial (Local Moran's I, Kulldorff and Flexible scan statistic) and space-time scan statistics (Kulldorff)...
March 8, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28253328/reprogramming-of-the-retinoic-acid-pathway-in-decidualizing-human-endometrial-stromal-cells
#16
Rie Ozaki, Keiji Kuroda, Yuko Ikemoto, Asako Ochiai, Akemi Matsumoto, Jun Kumakiri, Mari Kitade, Atsuo Itakura, Joanne Muter, Jan J Brosens, Satoru Takeda
Upon breaching of the endometrial surface epithelium, the implanting embryo embeds in the decidualizing stroma. Retinoic acid (RA), a metabolite of vitamin A, is an important morphogen during embryonic and fetal development, although the role of the RA pathway in the surrounding decidual cells is not understood. Here we show that decidual transformation of human endometrial stromal cells (HESCs) results in profound reprogramming of the RA signaling and metabolism pathways. Differentiating HESCs downregulate the intracellular carrier proteins CRABP2 and FABP5, responsible for transfer and binding of RA to the nuclear receptors RAR and PPARβ/δ, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28236185/the-accuracy-of-the-lateral-vertebral-notch-referred-pedicle-screw-insertion-technique-in-subaxial-cervical-spine-a-human-cadaver-study
#17
Jiaquan Luo, Chunyang Wu, Zhongren Huang, Zhimin Pan, Zhiyun Li, Junlong Zhong, Yiwei Chen, Zhimin Han, Kai Cao
STUDY DESIGN: This is a cadaver specimen study to confirm new pedicle screw (PS) entry point and trajectory for subaxial cervical PS insertion. OBJECTIVE: To assess the accuracy of the lateral vertebral notch-referred PS insertion technique in subaxial cervical spine in cadaver cervical spine. BACKGROUNDS: Reported morphometric landmarks used to guide the surgeon in PS insertion show significant variability. In the previous study, we proposed a new technique (as called "notch-referred" technique) primarily based on coronal multiplane reconstruction images (CMRI) and cortical integrity after PS insertion in cadavers...
February 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28231609/print-media-representations-of-united-kingdom-accident-and-emergency-treatment-targets-winter-2014-15
#18
Aimee Grant, Louise Hoyle
AIMS AND OBJECTIVES: to undertake an analysis of UK national daily newspaper coverage of accident and emergency treatment targets, in order to understand if the media could be seen to be creating a scandal. BACKGROUND: Emergency Department treatment targets have become common in developed countries. In the United Kingdom (UK), hospitals are required to treat and discharge patients within four hours, and statistics are published daily. Breaches of targets are regularly reported by the UK print media...
February 23, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28228821/security-of-patient-data-when-decommissioning-ultrasound-systems
#19
James Moggridge
BACKGROUND: Although ultrasound systems generally archive to Picture Archiving and Communication Systems (PACS), their archiving workflow typically involves storage to an internal hard disk before data are transferred onwards. Deleting records from the local system will delete entries in the database and from the file allocation table or equivalent but, as with a PC, files can be recovered. Great care is taken with disposal of media from a healthcare organisation to prevent data breaches, but ultrasound systems are routinely returned to lease companies, sold on or donated to third parties without such controls...
February 2017: Ultrasound: Journal of the British Medical Ultrasound Society
https://www.readbyqxmd.com/read/28215132/physiological-antecedents-and-ward-clinician-responses-before-medical-emergency-team-activation
#20
Stephanie K Sprogis, Judy Currey, Julie Considine, Ian Baldwin, Daryl Jones
OBJECTIVES: To investigate the frequency, characteristics and timing of objectively measured clinical instability in adult ward patients in the 24 hours preceding activation of the medical emergency team (MET). We also examined ward clinician responses to documented clinical instability. DESIGN, SETTING AND PARTICIPANTS: A descriptive, exploratory design with a retrospective medical record audit. We descriptively analysed data from 200 ward patients reviewed by the MET at a tertiary teaching hospital in Melbourne, Australia, during 2014...
March 2017: Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine
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