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https://www.readbyqxmd.com/read/29785733/left-ventricular-strain-analysis-using-cardiac-mri-in-patients-undergoing-in-centre-nocturnal-hemodialysis
#1
Jann Patrick Ong, Ron Wald, Marc B Goldstein, Jonathon Leipsic, Mercedeh Kiaii, Djeven P Deva, Anish Kirpalani, Laura Jimenez-Juan, Olugbenga Bello, Paymon M Azizi, Rachel M Wald, Graham A Wright, Ziv Harel, Kim A Connelly, Andrew T Yan
AIM: Intensified haemodialysis is associated with regression of left ventricular (LV) mass. Compared to LV ejection fraction, LV strain allows more direct assessment of LV function. We sought to assess the impact of in-centre nocturnal haemodialysis (INHD) on global LV strain (radial, circumferential, and longitudinal) and torsion by cardiac MRI (CMR). METHODS: In this prospective, 2-centre cohort study, 37 participants on conventional haemodialysis (CHD, 3-4 hours/session for 3 sessions/week) converted to INHD (7-8 hours/session for 3 sessions/week) and 30 participants continued CHD...
May 21, 2018: Nephrology
https://www.readbyqxmd.com/read/29784721/author-response-blood-pressure-reduction-and-noncontrast-ct-markers-of-intracerebral-hemorrhage-expansion
#2
Andrea Morotti, Jonathan Rosand, Joshua N Goldstein
No abstract text is available yet for this article.
May 22, 2018: Neurology
https://www.readbyqxmd.com/read/29783118/placenta-derived-mesenchymal-stromal-cells-and-their-exosomes-exert-therapeutic-effects-in-duchenne-muscular-dystrophy
#3
Ariel Bier, Peter Berenstein, Noam Kronfeld, Daria Morgoulis, Amotz Ziv-Av, Hodaya Goldstein, Gila Kazimirsky, Simona Cazacu, Rinat Meir, Rachela Popovtzer, Amir Dori, Chaya Brodie
Duchenne muscular dystrophy (DMD) is a degenerative lethal, X-linked disease of skeletal and cardiac muscles caused by mutations in the dystrophin gene. Cell therapy using different cell types, including mesenchymal stromal cells (MSCs), has been considered as a potential approach for the treatment of DMD. MSCs can be obtained from autologous sources such as bone marrow and adipose tissues or from allogeneic placenta and umbilical cord. The safety and therapeutic impact of these cells has been demonstrated in pre-clinical and clinical studies and their functions are attributed to paracrine effects that are mediated by secreted cytokines and extracellular vesicles...
May 3, 2018: Biomaterials
https://www.readbyqxmd.com/read/29779949/disease-heritability-inferred-from-familial-relationships-reported-in-medical-records
#4
Fernanda C G Polubriaginof, Rami Vanguri, Kayla Quinnies, Gillian M Belbin, Alexandre Yahi, Hojjat Salmasian, Tal Lorberbaum, Victor Nwankwo, Li Li, Mark M Shervey, Patricia Glowe, Iuliana Ionita-Laza, Mary Simmerling, George Hripcsak, Suzanne Bakken, David Goldstein, Krzysztof Kiryluk, Eimear E Kenny, Joel Dudley, David K Vawdrey, Nicholas P Tatonetti
Heritability is essential for understanding the biological causes of disease but requires laborious patient recruitment and phenotype ascertainment. Electronic health records (EHRs) passively capture a wide range of clinically relevant data and provide a resource for studying the heritability of traits that are not typically accessible. EHRs contain next-of-kin information collected via patient emergency contact forms, but until now, these data have gone unused in research. We mined emergency contact data at three academic medical centers and identified 7...
May 15, 2018: Cell
https://www.readbyqxmd.com/read/29779675/utilization-of-head-ct-during-injury-visits-to-united-states-emergency-departments-2012-2015
#5
Brian J Yun, Pierre Borczuk, Kori S Zachrison, Joshua N Goldstein, Yosef Berlyand, Ali S Raja
INTRODUCTION: Studies have shown increasing utilization of head computed tomography (CT) imaging of emergency department (ED) patients presenting with an injury-related visit. Multiple initiatives, including the Choosing Wisely™ campaign and evidence-based clinical decision support based on validated decision rules, have targeted head CT use in patients with injuries. Therefore, we investigated national trends in the use of head CT during injury-related ED visits from 2012 to 2015. METHODS: This was a secondary analysis of data from the annual United States (U...
May 18, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29768457/choice-of-time-horizon-critical-in-estimating-costs-and-effects-of-changes-to-hiv-programmes
#6
Nicky McCreesh, Ioannis Andrianakis, Rebecca N Nsubuga, Mark Strong, Ian Vernon, Trevelyan J McKinley, Jeremy E Oakley, Michael Goldstein, Richard Hayes, Richard G White
BACKGROUND: Uganda changed its antiretroviral therapy guidelines in 2014, increasing the CD4 threshold for antiretroviral therapy initiation from 350 cells/μl to 500 cells/μl. We investigate what effect this change in policy is likely to have on HIV incidence, morbidity, and programme costs, and estimate the cost-effectiveness of the change over different time horizons. METHODS: We used a complex individual-based model of HIV transmission and antiretroviral therapy scale-up in Uganda...
2018: PloS One
https://www.readbyqxmd.com/read/29768012/asymmetric-two-terminal-graphene-detector-for-broadband-radiofrequency-heterodyne-and-self-mixing
#7
Jiayue Tong, Matthew C Conte, Thomas Goldstein, K Sigfrid Yngvesson, Joseph C Bardin, Jun Yan
Graphene, a single atomic layer of covalently bonded carbon atoms, has been investigated intensively for optoelectronics and represents a promising candidate for high-speed electronics. Here we present a microwave mixer constructed as an asymmetrically-contacted two-terminal graphene device based on the thermoelectric effect. We report a 50 GHz (minimum) mixer bandwidth as well as 130 V/W extrinsic direct-detection responsivity. Anomalous second-harmonic generation due to self-mixing in our graphene detector is also observed...
May 16, 2018: Nano Letters
https://www.readbyqxmd.com/read/29767778/-pseudonymisation-at-source-undermines-accuracy-of-record-linkage
#8
Harvey Goldstein, Katie Harron
No abstract text is available yet for this article.
May 15, 2018: Journal of Public Health
https://www.readbyqxmd.com/read/29758361/bone-accrual-in-oligo-amenorrheic-athletes-eumenorrheic-athletes-and-non-athletes
#9
Vibha Singhal, Karen Campoverde Reyes, Brooke Pfister, Kathryn Ackerman, Meghan Slattery, Katherine Cooper, Alexander Toth, Nupur Gupta, Mark Goldstein, Kamryn Eddy, Madhusmita Misra
BACKGROUND: Mechanical loading improves bone mineral density (BMD) and strength while decreasing fracture risk. Cross-sectional studies show that exercise advantage is lost in oligo-amenorrheic athletes (OA). Longitudinal studies examining the opposing effects of exercise and hypogonadism on bone are lacking in adolescents/young adults. OBJECTIVE: Evaluate differences in bone accrual over 12 months in OA, eumenorrheic athletes (EA) and non-athletes (NA). We hypothesized that bone accrual would be lower in OA than EA and NA, with differences most pronounced at non-weight bearing trabecular sites...
May 11, 2018: Bone
https://www.readbyqxmd.com/read/29758112/novel-and-emerging-therapies-for-cholestatic-liver-diseases
#10
Jordan Goldstein, Cynthia Levy
While bile acids are important for both digestion and signaling, hydrophobic bile acids can be harmful especially when in high concentrations. Mechanisms for protection of cholangiocytes against bile acid cytotoxicity include negative feedback loops via farnesoid X nuclear receptor (FXR) activation, the bicarbonate umbrella, cholehepatic shunting and anti-inflammatory signaling, among others. By altering or overwhelming these defense mechanisms, cholestatic diseases such as primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC) can further progress to biliary cirrhosis, end-stage liver disease and death or liver transplantation...
May 14, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29757779/the-perioperative-care-of-the-transgender-patient
#11
Luis Etienne Tollinche, Chasity Burrows Walters, Asa Radix, Michael Long, Larissa Galante, Zil Garner Goldstein, Yvonne Kapinos, Cindy Yeoh
An estimated 25 million people identify as transgender worldwide, approximately 1 million of whom reside in the United States. The increasing visibility and acceptance of transgender people makes it likely that they will present in general surgical settings; therefore, perioperative health care providers must develop the knowledge and skills requisite for the safe management of transgender patients in the perioperative setting. Extant guidelines, such as those published by the World Professional Association for Transgender Health and the University of California San Francisco Center of Excellence for Transgender Health, serve as critical resources to those caring for transgender patients; however, they do not address their unique perioperative needs...
May 10, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29756870/why-clothes-don-t-fall-apart-tension-transmission-in-staple-yarns
#12
Patrick B Warren, Robin C Ball, Raymond E Goldstein
The problem of how staple yarns transmit tension is addressed within abstract models in which the Amontons-Coulomb friction laws yield a linear programing (LP) problem for the tensions in the fiber elements. We find there is a percolation transition such that above the percolation threshold the transmitted tension is in principle unbounded. We determine that the mean slack in the LP constraints is a suitable order parameter to characterize this supercritical state. We argue the mechanism is generic, and in practical terms, it corresponds to a switch from a ductile to a brittle failure mode accompanied by a significant increase in mechanical strength...
April 13, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29754649/telemedicine-cardiovascular-risk-reduction-in-veterans-the-cities-trial
#13
Hayden B Bosworth, Maren K Olsen, Felicia McCant, Karen M Stechuchak, Susanne Danus, Matthew J Crowley, Karen M Goldstein, Leah L Zullig, Eugene Z Oddone
BACKGROUND: Comprehensive programs addressing tailored patient self-management and pharmacotherapy may reduce barriers to cardiovascular disease (CVD) risk reduction. METHODS: This is a 2-arm (clinical pharmacist specialist-delivered, telehealth intervention and education control) randomized controlled trial including Veterans with poorly controlled hypertension and/or hypercholesterolemia. Primary outcome was Framingham CVD risk score at 6 and 12 months, with systolic blood pressure; diastolic blood pressure; total cholesterol; low-density lipoprotein; high-density lipoprotein; body mass index; and, for those with diabetes, HbA1c as secondary outcomes...
May 2018: American Heart Journal
https://www.readbyqxmd.com/read/29753734/which-neuromuscular-attributes-are-associated-with-changes-in-mobility-among-community-dwelling-older-adults-with-symptomatic-lumbar-spinal-stenosis
#14
Catherine T Schmidt, Rachel E Ward, Pradeep Suri, Dan K Kiely, Richard Goldstein, Ni Pensheng, Dennis E Anderson, Jonathan F Bean
OBJECTIVES: To identify neuromuscular attributes associated with mobility and changes in mobility over two years of follow-up among patients with and without SLSS. DESIGN: Secondary analysis of a longitudinal cohort study. SETTING: Outpatient rehabilitation center. PARTICIPANTS: Community-dwelling older adults >65 years with self-reported mobility limitations. SLSS was determined using self-reported symptoms of neurogenic claudication and imaging-detected lumbar spinal stenosis...
May 10, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29751965/de-labeling-of-%C3%AE-lactam-allergy-reduces-intraoperative-time-and-optimizes-choice-in-antibiotic-prophylaxis
#15
Yara Moussa, Joseph Shuster, Gilbert Matte, Andrew Sullivan, Robert H Goldstein, Dayle Cunningham, Moshe Ben-Shoshan, Gabriele Baldini, Francesco Carli, Christos Tsoukas
BACKGROUND: Suspected penicillin allergic individuals receive suboptimal non-β-lactams for intraoperative prophylaxis which may prolong operations and have negative clinical outcomes. We therefore studied if β-lactam de-labeling optimized choice of prophylactic antibiotics and improved intraoperative time efficiency. METHODS: A multistep approach was used. It included a risk assessment tool by an allergist, β-lactam skin testing and oral provocation. To determine the value of de-labeling, we appraised intraoperative antibiotic choices and correlated them with time to first incision...
May 8, 2018: Surgery
https://www.readbyqxmd.com/read/29751022/evaluating-a-neonatal-intensive-care-unit-mrsa-surveillance-programme-using-agent-based-network-modelling
#16
Neal D Goldstein, Samuel M Jenness, Deborah Tuttle, Michelle Power, David A Paul, Stephen C Eppes
BACKGROUND: Surveillance for meticillin-resistant Staphylococcus aureus (MRSA) in neonatal intensive care units (NICUs) is a commonplace infection prevention strategy, yet the optimal frequency with which to monitor the unit is unknown. AIM: We compared varying surveillance frequencies via simulation modelling. METHODS: One hundred NICU networks of 52 infants were simulated over a 6-month period to assess MRSA transmission. Unit-wide surveillance occurred every N weeks where N={1,2,3,4}, and was compared against the current NICU policy of dynamic surveillance: weekly when ≥1 positive screen, otherwise every 3 weeks...
May 8, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29739235/a-new-perspective-on-the-nitrate-phosphodiesterase-type-5-inhibitor-interaction
#17
Robert A Kloner, Paul Goggin, Irwin Goldstein, Geoffrey Hackett, Michael G Kirby, Ian Osterloh, John D Parker, Richard Sadovsky
BACKGROUND: Nitrates and nitrate-containing compounds are vasodilators used for the treatment of angina and heart failure. Phosphodiesterase type 5 inhibitors used for the treatment of erectile dysfunction are also vasodilators, and when taken together with nitrates, synergistic effects that enhance hypotensive effects may occur. Phosphodiesterase type 5 inhibitors are therefore contraindicated in patients taking organic nitrates. METHODS AND RESULTS: A literature review was performed to provide a historical overview of different phosphodiesterase type 5 inhibitors and nitrates and their interaction...
January 1, 2018: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29735157/neural-correlates-of-drug-biased-choice-in-currently-using-and-abstinent-individuals-with-cocaine-use-disorder
#18
Scott J Moeller, Anna Zilverstand, Anna B Konova, Prantik Kundu, Muhammad A Parvaz, Rebecca Preston-Campbell, Keren Bachi, Nelly Alia-Klein, Rita Z Goldstein
BACKGROUND: The choice for drugs over alternative reinforcers is a translational hallmark feature of drug addiction. The neural basis of such drug-biased choice is not well understood, particularly in individuals with protracted drug abstinence who cannot ethically participate in studies that offer drug-using opportunities. METHODS: We developed a functional magnetic resonance imaging drug-choice task to examine the choice for viewing drug-related images, rather than for actually consuming a drug...
May 2018: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/29734997/consumer-sleep-technology-an-american-academy-of-sleep-medicine-position-statement
#19
Seema Khosla, Maryann C Deak, Dominic Gault, Cathy A Goldstein, Dennis Hwang, Younghoon Kwon, Daniel O'Hearn, Sharon Schutte-Rodin, Michael Yurcheshen, Ilene M Rosen, Douglas B Kirsch, Ronald D Chervin, Kelly A Carden, Kannan Ramar, R Nisha Aurora, David A Kristo, Raman K Malhotra, Jennifer L Martin, Eric J Olson, Carol L Rosen, James A Rowley
Consumer sleep technologies (CSTs) are widespread applications and devices that purport to measure and even improve sleep. Sleep clinicians may frequently encounter CST in practice and, despite lack of validation against gold standard polysomnography, familiarity with these devices has become a patient expectation. This American Academy of Sleep Medicine position statement details the disadvantages and potential benefits of CSTs and provides guidance when approaching patient-generated health data from CSTs in a clinical setting...
May 15, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29734257/noninvasive-measures-of-pulsatility-and-blood-pressure-during-continuous-flow-left-ventricular-assist-device
#20
Sabarivinoth Rangasamy, Shivank Madan, Omar Saeed, Daniel J Goldstein, Ulrich P Jorde, Abdissa Negassa, Snehal R Patel
The reliability and validity of a palpable pulse and other noninvasive measures of pulsatility in patients on continuous-flow (CF) left ventricular assist device (LVAD) support have not been rigorously evaluated. We prospectively enrolled 23 patients who had CF-LVAD and an arterial catheter for blood pressure (BP) monitoring. Pulse pressure (PP) via the arterial line was compared with three noninvasive measures of pulsatility: presence of a palpable pulse, pulsatility index (PI), and aortic valve opening (AVO)...
April 19, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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