keyword
MENU ▼
Read by QxMD icon Read
search

Virtual cohort

keyword
https://www.readbyqxmd.com/read/27915227/prenatal-and-postnatal-polybrominated-diphenyl-ether-exposure-and-visual-spatial-abilities-in-children
#1
Ann M Vuong, Joseph M Braun, Kimberly Yolton, Changchun Xie, Glenys M Webster, Andreas Sjödin, Kim N Dietrich, Bruce P Lanphear, Aimin Chen
Polybrominated diphenyl ethers (PBDEs) are associated with impaired visual spatial abilities in toxicological studies, but no epidemiologic study has investigated PBDEs and visual spatial abilities in children. The Health Outcomes and Measures of the Environment Study, a prospective birth cohort (2003-2006, Cincinnati, OH), was used to examine prenatal and childhood PBDEs and visual spatial abilities in 199 children. PBDEs were measured at 16±3 weeks gestation and at 1, 2, 3, 5, and 8 years using gas chromatography/isotope dilution high-resolution mass spectrometry...
December 1, 2016: Environmental Research
https://www.readbyqxmd.com/read/27898991/nipple-and-areola-sparing-mastectomy-for-the-treatment-of-breast-cancer
#2
REVIEW
Bruna S Mota, Rachel Riera, Marcos Desidério Ricci, Jessica Barrett, Tiago B de Castria, Álvaro N Atallah, Jose Luiz B Bevilacqua
BACKGROUND: The efficacy and safety of nipple-sparing mastectomy and areola-sparing mastectomy for the treatment of breast cancer are still questionable. It is estimated that the local recurrence rates following nipple-sparing mastectomy are very similar to breast-conserving surgery followed by radiotherapy. OBJECTIVES: To assess the efficacy and safety of nipple-sparing mastectomy and areola-sparing mastectomy for the treatment of ductal carcinoma in situ and invasive breast cancer in women...
November 29, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27888119/prenatal-phthalate-triclosan-and-bisphenol-a-exposures-and-child-visual-spatial-abilities
#3
Joseph M Braun, David C Bellinger, Russ Hauser, Robert O Wright, Aimin Chen, Antonia M Calafat, Kimberly Yolton, Bruce P Lanphear
INTRODUCTION: During fetal development, sex steroids influence sexually dimorphic behaviors, such as visual-spatial abilities. Thus, endocrine disrupting chemicals that impact sex steroids during gestation may affect these behaviors. OBJECTIVE: We investigated the relationship between prenatal urinary phthalate metabolite, triclosan, and BPA concentrations and visual-spatial abilities in a prospective cohort of 198 mother-child dyads. METHODS: Data are from a prospective cohort in Cincinnati, OH (HOME Study)...
November 23, 2016: Neurotoxicology
https://www.readbyqxmd.com/read/27884959/cardiac-responses-to-exercise-distinguish-postural-orthostatic-tachycardia-syndrome-variants
#4
Paolo T Pianosi, Darrell R Schroeder, Philip R Fischer
We previously showed that one-third of adolescents with postural orthostatic tachycardia syndrome (POTS) have hyperkinetic circulation. In a subsequent cohort, we compare participants with POTS grouped according to cardiac output (Q˙) versus oxygen uptake (V˙O2) function, whose circulatory response to exercise lay at the lower end of this distribution. We hypothesized that such grouping determines the circulatory response to incremental-protocol, upright, cycle ergometry by whatever blend of flow and resistance adjustments best maintains normal blood pressure...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27884677/mastery-based-virtual-reality-robotic-simulation-curriculum-the-first-step-toward-operative-robotic-proficiency
#5
Melissa E Hogg, Vernissia Tam, Mazen Zenati, Stephanie Novak, Jennifer Miller, Amer H Zureikat, Herbert J Zeh
OBJECTIVE: Hepatobiliary surgery is a highly complex, low-volume specialty with long learning curves necessary to achieve optimal outcomes. This creates significant challenges in both training and measuring surgical proficiency. We hypothesize that a virtual reality curriculum with mastery-based simulation is a valid tool to train fellows toward operative proficiency. This study evaluates the content and predictive validity of robotic simulation curriculum as a first step toward developing a comprehensive, proficiency-based pathway...
November 21, 2016: Journal of Surgical Education
https://www.readbyqxmd.com/read/27856475/assessment-of-cardiovascular-remodelling-following-endovascular-aortic-repair-through-imaging-and-computation-the-core-prospective-observational-cohort-study-protocol
#6
Foeke J H Nauta, Arnoud V Kamman, El-Sayed H Ibrahim, Prachi P Agarwal, Bo Yang, Karen Kim, David M Williams, Joost A van Herwaarden, Frans L Moll, Kim A Eagle, Santi Trimarchi, Himanshu J Patel, C Alberto Figueroa
INTRODUCTION: Thoracic aortic stent grafts are orders of magnitude stiffer than the native aorta. These devices have been associated with acute hypertension, elevated pulse pressure, cardiac remodelling and reduced coronary perfusion. However, a systematic assessment of such cardiovascular effects of thoracic endovascular aortic repair (TEVAR) is missing. The CardiOvascular Remodelling following Endovascular aortic repair (CORE) study aims to (1) quantify cardiovascular remodelling following TEVAR and compare echocardiography against MRI, the reference method; (2) validate computational modelling of cardiovascular haemodynamics following TEVAR using clinical measurements, and virtually assess the impact of more compliant stent grafts on cardiovascular haemodynamics; and (3) investigate diagnostic accuracy of ECG and serum biomarkers for cardiac remodelling compared to MRI...
November 17, 2016: BMJ Open
https://www.readbyqxmd.com/read/27855681/using-telehealth-to-support-end-of-life-care-in-the-community-a-feasibility-study
#7
Jennifer J Tieman, Kate Swetenham, Deidre D Morgan, Timothy H To, David C Currow
BACKGROUND: Telehealth is being used increasingly in providing care to patients in the community setting. Telehealth enhanced service delivery could offer new ways of managing load and care prioritisation for palliative care patients living in the community. The study assesses the feasibility of a telehealth-based model of service provision for community based palliative care patients, carers and clinicians. METHODS: This study was a prospective cohort study of a telehealth-based intervention for community based patients of a specialist palliative care service living in Southern Adelaide, South Australia...
November 17, 2016: BMC Palliative Care
https://www.readbyqxmd.com/read/27847847/inter-observer-agreement-between-2-dimensional-ct-versus-3-dimensional-i-space-model-in-the-diagnosis-of-occult-scaphoid-fractures
#8
Tessa Drijkoningen, Robert Knoter, Emile G Coerkamp, Anton H J Koning, Steven J Rhemrev, Frank J Beeres
BACKGROUND: The I-Space is a radiological imaging system in which Computed Tomography (CT)-scans can be evaluated as a three dimensional hologram. The aim of this study is to analyze the value of virtual reality (I-Space) in diagnosing acute occult scaphoid fractures. METHODS: A convenient cohort of 24 patients with a CT-scan from prior studies, without a scaphoid fracture on radiograph, yet high clinical suspicion of a fracture, were included in this study. CT-scans were evaluated in the I-Space by 7 observers of which 3 observers assessed the scans in the I-Space twice...
October 2016: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/27837233/critically-ill-patients-demonstrate-large-interpersonal-variation-in-intestinal-microbiota-dysregulation-a-pilot-study
#9
Jacqueline M Lankelma, Lonneke A van Vught, Clara Belzer, Marcus J Schultz, Tom van der Poll, Willem M de Vos, W Joost Wiersinga
PURPOSE: The intestinal microbiota has emerged as a virtual organ with essential functions in human physiology. Antibiotic-induced disruption of the microbiota in critically ill patients may have a negative influence on key energy resources and immunity. We set out to characterize the fecal microbiota composition in critically ill patients both with and without sepsis and to explore the use of microbiota-derived markers for clinical outcome measurements in this setting. METHODS: In this prospective observational cohort study we analyzed the fecal microbiota of 34 patients admitted to the intensive care unit...
November 11, 2016: Intensive Care Medicine
https://www.readbyqxmd.com/read/27806099/plaque-vulnerability-as-assessed-by-radiofrequency-intravascular-ultrasound-in-patients-with-valvular-calcification
#10
Nagendra Boopathy Senguttuvan, Sharath Kumar, Wang-Soo Lee, Sundeep Mishra, Jun Hwan Cho, Jee Eun Kwon, Seong Hyeop Hyeon, Yun Sang Jeong, Hoyoun Won, Seung Yong Shin, Kwang Je Lee, Tae Ho Kim, Chee Jeong Kim, Sang-Wook Kim
BACKGROUND: Cardiac valvular calcification is associated with the overall coronary plaque burden and considered an independent cardiovascular risk and prognostic factor. The purpose of this study was to evaluate the relationship between the presence of valvular calcification and plaque morphology and/or vulnerability. METHODS: Transthoracic echocardiography was used to assess valvular calcification in 280 patients with coronary artery disease who underwent radiofrequency intravascular ultrasound (Virtual Histology IVUS, VH-IVUS)...
2016: PloS One
https://www.readbyqxmd.com/read/27800007/comparison-of-dementia-recorded-in-routinely-collected-hospital-admission-data-in-england-with-dementia-recorded-in-primary-care
#11
Anna Brown, Oksana Kirichek, Angela Balkwill, Gillian Reeves, Valerie Beral, Cathie Sudlow, John Gallacher, Jane Green
BACKGROUND: Electronic linkage of UK cohorts to routinely collected National Health Service (NHS) records provides virtually complete follow-up for cause-specific hospital admissions and deaths. The reliability of dementia diagnoses recorded in NHS hospital data is not well documented. METHODS: For a sample of Million Women Study participants in England we compared dementia recorded in routinely collected NHS hospital data (Hospital Episode Statistics: HES) with dementia recorded in two separate sources of primary care information: a primary care database [Clinical Practice Research Datalink (CPRD), n = 340] and a survey of study participants' General Practitioners (GPs, n = 244)...
2016: Emerging Themes in Epidemiology
https://www.readbyqxmd.com/read/27799216/efavirenz-is-predicted-to-accumulate-in-brain-tissue-an-in-silico-in-vitro-and-in-vivo-investigation
#12
Paul Curley, Rajith K R Rajoli, Darren M Moss, Neill J Liptrott, Scott Letendre, Andrew Owen, Marco Siccardi
INTRODUCTION: Adequate concentrations of efavirenz in the central nervous system (CNS) are necessary to supress viral replication but high concentrations may increase the likelihood of CNS adverse drug reactions. The aim of this investigation was to evaluate efavirenz distribution into the cerebrospinal fluid (CSF) and brain using a physiologically based pharmacokinetic (PBPK) simulation for comparison with rodent and human data. METHODS: Efavirenz CNS distribution was calculated using a permeability-limited model in a virtual cohort of 100 patients receiving efavirenz (600 mg once-daily)...
October 31, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27785066/biomarker-discovery-to-improve-prediction-of-breast-cancer-survival-using-gene-expression-profiling-meta-analysis-and-tissue-validation
#13
Liwei Meng, Yingchun Xu, Chaoyang Xu, Wei Zhang
PURPOSE: Breast cancer is the leading cause of cancer death worldwide in women. The molecular mechanism for human breast cancer is unknown. Gene microarray has been widely used in breast cancer research to identify clinically relevant molecular subtypes as well as to predict prognosis survival. So far, the valuable multigene signatures in clinical practice are unclear, and the biological importance of individual genes is difficult to detect, as the described signatures virtually do not overlap...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27782706/investigating-deformable-image-registration-and-scatter-correction-for-cbct-based-dose-calculation-in-adaptive-impt
#14
Christopher Kurz, Florian Kamp, Yang-Kyun Park, Christoph Zöllner, Simon Rit, David Hansen, Mark Podesta, Gregory C Sharp, Minglun Li, Michael Reiner, Jan Hofmaier, Sebastian Neppl, Christian Thieke, Reinoud Nijhuis, Ute Ganswindt, Claus Belka, Brian A Winey, Katia Parodi, Guillaume Landry
PURPOSE: This work aims at investigating intensity corrected cone-beam x-ray computed tomography (CBCT) images for accurate dose calculation in adaptive intensity modulated proton therapy (IMPT) for prostate and head and neck (H&N) cancer. A deformable image registration (DIR)-based method and a scatter correction approach using the image data obtained from DIR as prior are characterized and compared on the basis of the same clinical patient cohort for the first time. METHODS: Planning CT (pCT) and daily CBCT data (reconstructed images and measured projections) of four H&N and four prostate cancer patients have been considered in this study...
October 2016: Medical Physics
https://www.readbyqxmd.com/read/27776087/congress-of-neurological-surgeons-systematic-review-and-evidence-based-guideline-on-the-management-of-patients-with-positional-plagiocephaly-the-role-of-repositioning
#15
Paul Klimo, Patrick Ryan Lingo, Lissa C Baird, David F Bauer, Alexandra Beier, Susan Durham, Alexander Y Lin, Catherine McClung-Smith, Laura Mitchell, Dimitrios Nikas, Mandeep S Tamber, Rachana Tyagi, Catherine Mazzola, Ann Marie Flannery
BACKGROUND: Plagiocephaly, involving positional deformity of the calvarium in infants, is one of the most common reasons for pediatric neurosurgical consultation. OBJECTIVE: To answer the question: "what is the evidence for the effectiveness of repositioning for positional plagiocephaly?" Treatment recommendations are provided based on the available evidence. METHODS: The National Library of Medicine MEDLINE database and the Cochrane Library were queried using MeSH headings and key words relevant to repositioning as a means to treat plagiocephaly and brachycephaly...
November 2016: Neurosurgery
https://www.readbyqxmd.com/read/27769822/variability-of-ct-attenuation-measurements-in-virtual-unenhanced-images-generated-using-multimaterial-decomposition-from-fast-kilovoltage-switching-dual-energy-ct
#16
Ravi K Kaza, Evan A Raff, Matthew S Davenport, Shokoufeh Khalatbari
RATIONALE AND OBJECTIVES: To compare Hounsfield unit (HU) data obtained from true-unenhanced (TUE) and virtual-unenhanced (VUE) imaging obtained with a fast kv-switching dual-energy computed tomography (CT) scanner using multimaterial decomposition algorithm. MATERIALS AND METHODS: In this Institutional Review Board-approved, Health Insurance Portability and Accountability Act-compliant, retrospective cohort study, CT scans of 19 patients undergoing multiphasic renal protocol abdominal CT on a fast kv-switching dual-energy CT scanner were reviewed...
October 18, 2016: Academic Radiology
https://www.readbyqxmd.com/read/27759673/guidelines-congress-of-neurological-surgeons-systematic-review-and-evidence-based-guideline-on-the-management-of-patients-with-positional-plagiocephaly-the-role-of-repositioning
#17
Paul Klimo, Patrick Ryan Lingo, Lissa C Baird, David F Bauer, Alexandra Beier, Susan Durham, Alexander Y Lin, Catherine McClung-Smith, Laura Mitchell, Dimitrios Nikas, Mandeep S Tamber, Rachana Tyagi, Catherine Mazzola, Ann Marie Flannery
BACKGROUND: Plagiocephaly, involving positional deformity of the calvarium in infants, is one of the most common reasons for pediatric neurosurgical consultation. OBJECTIVE: To answer the question: "what is the evidence for the effectiveness of repositioning for positional plagiocephaly?" Treatment recommendations are provided based on the available evidence. METHODS: The National Library of Medicine MEDLINE database and the Cochrane Library were queried using MeSH headings and key words relevant to repositioning as a means to treat plagiocephaly and brachycephaly...
November 2016: Neurosurgery
https://www.readbyqxmd.com/read/27755141/current-thinking-regarding-potential-neurotoxicity-of-general-anesthesia-in-infants
#18
Mary Ellen McCann, Jurgen de Graaff
PURPOSE OF REVIEW: Numerous preclinical studies have shown that general anesthetics adversely influence the development of young brains. These adverse effects are dose-dependent occurring in specific stages of brain development. Histologic examinations show increased apoptosis, pathological neurogenesis and dendritic formation after exposure in infant animals to virtually all general anesthetics at a clinically effective dose which are associated with memory and behavioral changes at adulthood...
January 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/27755007/fibrinogen-in-relation-to-degree-and-composition-of-coronary-plaque-on-intravascular-ultrasound-in-patients-undergoing-coronary-angiography
#19
Nermina Buljubasic, K Martijn Akkerhuis, Jin M Cheng, Rohit M Oemrawsingh, Hector M Garcia-Garcia, Sanneke P M de Boer, Evelyn Regar, Robert-Jan M van Geuns, Patrick W J C Serruys, Eric Boersma, Isabella Kardys
OBJECTIVE: The aim of this study was to provide additional insight into the role of fibrinogen in coronary artery disease by investigating the associations between plasma fibrinogen with both degree and composition of coronary atherosclerosis as determined by virtual histology-intravascular ultrasound. PATIENTS AND METHODS: In 581 patients undergoing coronary angiography for acute coronary syndrome (ACS) or stable angina pectoris, preprocedural blood samples were drawn for fibrinogen, C-reactive protein (CRP), interleukin-6, and plasminogen activator inhibitor-1 measurements, and virtual histology-intravascular ultrasound of a nonculprit coronary artery was performed...
October 14, 2016: Coronary Artery Disease
https://www.readbyqxmd.com/read/27734466/timecourse-of-oocyte-development-in-saithe-pollachius-virens
#20
J E Skjaeraasen, J A Devine, J A Godiksen, M Fonn, H OtterÅ, O S Kjesbu, B Norberg, Ø Langangen, Ø Karlsen
Wild caught North Sea saithe Pollachius virens were monitored for growth, sex steroid profiles and oocyte development pre-spawning and measured for egg size and group fecundity during the spawning season in the laboratory. Vitellogenesis commenced in late October-early November, at a leading cohort size (CL ) of c. 250 µm, after which oocytes grew rapidly in size until spawning started in February. Notably, a distinct cortical alveoli stage was virtually absent with yolk granules observed in developing oocytes at the very beginning of vitellogenesis...
October 13, 2016: Journal of Fish Biology
keyword
keyword
49426
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"