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https://www.readbyqxmd.com/read/28343373/weighted-win-loss-approach-for-analyzing-prioritized-outcomes
#1
Xiaodong Luo, Junshan Qiu, Steven Bai, Hong Tian
To analyze prioritized outcomes, Buyse (2010) and Pocock et al. (2012) proposed the win loss approach. In this paper, we first study the relationship between the win loss approach and the traditional survival analysis on the time to the first event. We then propose the weighted win loss statistics to improve the efficiency of the unweighted methods. A closed-form variance estimator of the weighted win loss statistics is derived to facilitate hypothesis testing and study design. We also calculated the contribution index to better interpret the results of the weighted win loss approach...
March 26, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28343349/modernizing-quality-of-life-assessment-development-of-a-multidimensional-computerized-adaptive-questionnaire-for-patients-with-schizophrenia
#2
Pierre Michel, Karine Baumstarck, Christophe Lancon, Badih Ghattas, Anderson Loundou, Pascal Auquier, Laurent Boyer
OBJECTIVE: Quality of life (QoL) is still assessed using paper-based and fixed-length questionnaires, which is one reason why QoL measurements have not been routinely implemented in clinical practice. Providing new QoL measures that combine computer technology with modern measurement theory may enhance their clinical use. The aim of this study was to develop a QoL multidimensional computerized adaptive test (MCAT), the SQoL-MCAT, from the fixed-length SQoL questionnaire for patients with schizophrenia...
March 25, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28343337/trismus-following-different-treatment-modalities-for-head-and-neck-cancer-a-systematic-review-of-subjective-measures
#3
REVIEW
Sook Y Loh, Robert W J Mcleod, Hassan A Elhassan
The aim of this review was to compare systematically the subjective measure of trismus between different interventions to treat head and neck cancer, particularly those of the oropharynx. Using The Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) Guidelines, Six databases were searched for the text using various terms which include "oropharyngeal/head and neck cancer", "trismus/mouth opening" and the various treatment modalities. Included in the review were clinical studies (> or =10 patients)...
March 25, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28343334/design-and-test-of-a-microsoft-kinect-based-system-for-delivering-adaptive-visual-feedback-to-stroke-patients-during-training-of-upper-limb-movement
#4
Daniel Simonsen, Mirjana B Popovic, Erika G Spaich, Ole Kæseler Andersen
The present paper describes the design and test of a low-cost Microsoft Kinect-based system for delivering adaptive visual feedback to stroke patients during the execution of an upper limb exercise. Eleven sub-acute stroke patients with varying degrees of upper limb function were recruited. Each subject participated in a control session (repeated twice) and a feedback session (repeated twice). In each session, the subjects were presented with a rectangular pattern displayed on a vertical mounted monitor embedded in the table in front of the patient...
March 25, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28343301/comparison-of-optical-see-through-head-mounted-displays-for-surgical-interventions-with-object-anchored-2d-display
#5
Long Qian, Alexander Barthel, Alex Johnson, Greg Osgood, Peter Kazanzides, Nassir Navab, Bernhard Fuerst
PURPOSE: Optical see-through head-mounted displays (OST-HMD) feature an unhindered and instantaneous view of the surgery site and can enable a mixed reality experience for surgeons during procedures. In this paper, we present a systematic approach to identify the criteria for evaluation of OST-HMD technologies for specific clinical scenarios, which benefit from using an object-anchored 2D-display visualizing medical information. METHODS: Criteria for evaluating the performance of OST-HMDs for visualization of medical information and its usage are identified and proposed...
March 25, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28343259/numerical-and-experimental-analysis-of-the-transitional-flow-across-a-real-stenosis
#6
R Agujetas, C Ferrera, A C Marcos, J P Alejo, J M Montanero
In this paper, we present a numerical study of the pulsatile transitional flow crossing a severe real stenosis located right in front of the bifurcation between the right subclavian and right common carotid arteries. The simulation allows one to determine relevant features of this subject-specific flow, such as the pressure waves in the right subclavian and right common carotid arteries. We explain the subclavian steal syndrome suffered by the patient in terms of the drastic pressure drop in the right subclavian artery...
March 25, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28343251/neurological-aspects-of-chemical-and-biological-terrorism-guidelines-for-neurologists
#7
REVIEW
Harald De Cauwer, Francis J M P Somville, Marieke Joillet
This statement paper deals with the key role an neurologist plays in the management of victims of chemical warfare/terrorist attacks. Because terrorist factions have expanded the war zone creating a worldwide risk of terrorist attacks, not only limited to some conflict zones in the Middle East, neurologists in all countries/regions have to be prepared for disaster response. The scope of this paper is to provide guidelines for the neurological management of victims of chemical and biological terrorist attacks...
March 25, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28343245/an-acid-inert-fluorescent-probe-for-the-detection-of-nitrite
#8
Meiyi Cai, Xiaoyun Chai, Xuedong Wang, Ting Wang
The fluorescent detection of nitrite ions has been challenging owing to the poor acid-stability of typical fluorescent probes. Herein, an acid-inert rhodamine-based fluorescent probe has been developed for the fast detection of trace amount of nitrite ions with turn-on mode. The detection limit of nitrite ions was determined to be 9.4 nM (S/N = 3) and the linear range with high linear correlation was observed between 0.025 to 2.5 μM. A test paper method was developed for rapid visual detection of nitrite ions...
March 25, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/28343230/idiopathic-pulmonary-fibrosis-in-switzerland-diagnosis-and-treatment
#9
Manuela Funke-Chambour, Andrea Azzola, Dan Adler, Constance Barazzone-Argiroffo, Christian Benden, Annette Boehler, Pierre-Olivier Bridevaux, Martin Brutsche, Christian F Clarenbach, Katrin Hostettler, Rebekka Kleiner-Finger, Laurent P Nicod, Paola M Soccal, Michael Tamm, Thomas Geiser, Romain Lazor
Idiopathic pulmonary fibrosis (IPF) is a severe progressive and irreversible lung disease. Novel antifibrotic drugs that slow disease progression are now available. However, many issues regarding patient management remain unanswered, such as the choice between available drugs, their use in particular subgroups and clinical situations, time of treatment onset, termination, combination or switch, or nonpharmacologic management. To guide Swiss respiratory physicians in this evolving field still characterized by numerous areas of uncertainty, the Swiss Working Group for interstitial and rare lung diseases of the Swiss Respiratory Society provides a position paper on the diagnosis and treatment of IPF...
March 25, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28343224/the-evidence-of-acute-kidney-injury-in-the-community-and-for-primary-care-interventions
#10
Lauren Emmett, James Tollitt, Sheila McCorkindale, Smeeta Sinha, Dimitrios Poulikakos
BACKGROUND: Almost two-thirds of patients with acute kidney injury (AKI) damage their kidneys whilst in the community. This paper aims to review existing data on incidence, mortality, and morbidity of AKI within the community and explore the evidence base for primary care strategies aimed at reducing incidence and improving early detection and management of AKI. METHODS: A literature search was carried out using PubMed; key words including AKI, primary care, community acquired, and electronic alerts (e-alerts) were used to capture relevant data...
March 25, 2017: Nephron
https://www.readbyqxmd.com/read/28343209/terminological-collocations-in-medical-latin-and-english-a-comparative-study
#11
Olena M Bieliaieva, Yuliia V Lysanets, Ivanna V Znamenska, Inesa V Rozhenko, Nataliia M Nikolaieva
INTRODUCTION: The present paper examines the linguistic status of terminological collocations in medical Latin and English, discusses the most productive term-formation models and ways of Latin-English translation. AIM: The authors aim to provide the comparative analysis of Latin and English terminological collocations and suggest their classification in terms of the idiomaticity level and semantic valency. MATERIALS AND METHODS: The research is based on the corpus of terminological collocations in Latin and English medical discourse using structural, etymological, typological, comparative methods, as well as the method of semantic analysis and conceptual metaphor theory...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343207/-liability-for-damages-resulting-from-hospital-falls
#12
Anita Gałęska-Śliwka, Marcin Śliwka
The aim of the work is to analyze the conditions for liability of medical institutions for damages resulting from hospital fails. The study identifies achievements of polish jurisprudence. The authors also pointed to factors specific for claims of this type. The paper discusses: legal consequences of failure to provide security of patient stay and the responsibilities of hospitals in relation to patients especially vulnerable to falls. It also analyzes the problems faced by patients claiming compensation for damages resulting from such events: constraints of the evidence in establishing the conditions for liability, the argument unpredictability of event and the detrimental impact of the actions taken in the hospital to reduce the risk of falling...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343203/developing-the-professional-competence-of-future-doctors-in-the-instructional-setting-of-higher-medical-educational-institutions
#13
Halyna Yu Morokhovets, Yuliia V Lysanets
INTRODUCTION: The main objectives of higher medical education is the continuous professional improvement of physicians to meet the needs dictated by the modern world both at undergraduate and postgraduate levels. In this respect, the system of higher medical education has undergone certain changes - from determining the range of professional competences to the adoption of new standards of education in medicine. AIM: The article aims to analyze the parameters of doctor's professionalism in the context of competence-based approach and to develop practical recommendations for the improvement of instruction techniques...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343201/-ibrutinib-new-tool-in-hematologist-hand-new-challenges-for-internist
#14
Maciej Majcherek, Marzena Dworacka, Grzegorz Dworacki
Chronic lymphocytic leukemia is the most common cancer of the lymphatic tissue in adults. The peak incidence falls on the 65-70 year old. Therefore, the majority of patients with chronic lymphocytic leukemia (CLL) has at least one coexisting disease. Successful oncological and supportive treatment, that is common in recent years, significantly prolongs the survival. This paper presents ibrutinib - a new drug used to treat CLL. The aim of this paper is, to show an example of this drug, meaning and benefits of modern methods of pharmacotherapy in the treatment of oncology...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343200/sentinel-lymph-node-sln-in-breast-cancer-review-of-current-identification-methods
#15
Andrzej Lorek, Agnieszka Boratyn-Nowicka, Ewa Szlachta-Światkowska
The subject of the paper is the review of the current methods for identifying the sentinel lymph node in breast cancer treatment, taking into account the latest techniques and based on the up-to-date analyses of many years of experience in using this method.
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343198/-why-ovarian-cancer-cells-escape-from-immune-surveillance
#16
Iwona Wertel, Karolina Okła, Justyna Surówka, Monika Bilska, Grzegorz Polak, Wiesława Bednarek, Jan Kotarski
Ovarian cancer is a malignancy of high mortality rates. In respect of the number of deaths caused by cancers it occupies the fourth place among women in Poland. Recent studies are focusing on the role of immune system in ovarian cancer pathogenesis. It has been reported that immune response against ovarian cancer cells may be inhibited by a number of immunosuppressive mechanisms active in cancer microenvironment. It causes difficulties in recognizing and destroying cancer cells by immune system which leads to the development of immune tolerance and is associated with a low efficacy of standard therapeutic strategies...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343147/ethical-ramifications-of-the-paolo-macchiarini-case
#17
Jaime A Teixeira da Silva
The Paolo Macchiarini case has several ethical ramifications. Professor Macchiarini, formerly of the Karolinska Institutet (KI), became famous for the tracheal surgeries he conducted between 2008 and 2014. His rapid rise to fame was followed by an almost equally rapid fall from grace as official reports, articles in newspapers and television programmes revealed several aspects related to misconduct in his curriculum vitae, professional practices and publishing-related activity. Formal misconduct reports issued by four KI co-workers in late 2014, then again in 2016, coupled with social scandals, including the tricking of a famous US television newscaster into a false marriage, a previous arrest in Italy for apparent bribery, and acute narcissism, all tainted Macchiarini's legend...
March 15, 2017: Indian Journal of Medical Ethics
https://www.readbyqxmd.com/read/28343133/single-crystal-cr2o3-nanoplates-with-differing-crystalinities-derived-from-trinuclear-complexes-and-embedded-in-a-carbon-matrix-as-an-electrode-material-for-supercapacitors
#18
Jikui Zhu, Yuqian Jiang, Zhiyong Lu, Chenglan Zhao, Li Xie, Lingyun Chen, Jingui Duan
As one kind of important p-type semiconductors, Cr2O3 has been widely used for optical and electronic devices due to its high electrical conductivity and special optoelectronic characteristics, as well as high chemical and thermal stability. In this paper, single-crystalline Cr2O3 nanoplates embedded in carbon matrix were successfully synthesized through direct thermal decomposition of a trinuclear cluster complex of [Cr3O(CH3CO2)6(H2O)3]NO3·CH3COOH ([Cr3O]) in Ar atmosphere. The synergetic effect of the plate-like structure and embedding in carbon matrix contributes to the enhanced electrochemical performance of the Cr2O3-C nanoplates...
March 18, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28343116/health-and-weight-gender-specific-linkages-under-heterogeneity-interdependence-and-resilience-factors
#19
Olaf Hübler
Many studies have shown that obesity is a serious health problem for our society. Empirical analyses often neglect a number of methodological issues and relevant influences on health. This paper investigates empirically whether neglecting these items leads to systematically different estimates. Based on data from the German Socio-Economic Panel, this study derives the following results. (1) Many combinations of weight and height lead to the same health status. (2) The relationship between health and body mass index is nonlinear...
March 11, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/28343087/cad-cam-machining-vs-pre-sintering-in-lab-fabrication-techniques-of-y-tzp-ceramic-specimens-effects-on-their-mechanical-fatigue-behavior
#20
C P Zucuni, L F Guilardi, S Fraga, L G May, G K R Pereira, L F Valandro
This study evaluated the effects of different pre-sintering fabrication processing techniques of Y-TZP ceramic (CAD/CAM Vs. in-lab), considering surface characteristics and mechanical performance outcomes. Pre-sintered discs of Y-TZP ceramic (IPS e.max ZirCAD, Ivoclar Vivadent) were produced using different pre-sintering fabrication processing techniques: Machined- milling with a CAD/CAM system; Polished- fabrication using a cutting device followed by polishing (600 and 1200 SiC papers); Xfine- fabrication using a cutting machine followed by grinding with extra-fine diamond bur (grit size 30 μm); Fine- fabrication using a cutting machine followed by grinding with fine diamond bur (grit size 46 μm); SiC- fabrication using a cutting machine followed by grinding with 220 SiC paper...
March 18, 2017: Journal of the Mechanical Behavior of Biomedical Materials
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