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https://www.readbyqxmd.com/read/29145673/imaging-characteristics-predict-operative-difficulty-mobilizing-the-sciatic-nerve-for-proximal-hamstring-repair
#1
Thomas J Wilson, B Matthew Howe, Robert J Spinner, Aaron J Krych
BACKGROUND: Repair of proximal hamstring avulsions requires mobilization of the sciatic nerve away from the tendon stump, which can be achieved with varying difficulty depending on the degree of scar formation and adherence. Predicting when a scarred, adherent, difficult-to-mobilize nerve will be encountered has been difficult. OBJECTIVE: To identify clinical and/or radiological factors predictive of a difficult intraoperative dissection of the sciatic nerve during proximal hamstring repair...
November 14, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29145476/an-immunohistochemical-identification-key-for-cell-types-in-adult-mouse-prostatic-and-urethral-tissue-sections
#2
Kyle A Wegner, Mark T Cadena, Ryan Trevena, Anne E Turco, Adam Gottschalk, Richard B Halberg, Jinjin Guo, Jill A McMahon, Andrew P McMahon, Chad M Vezina
Though many methods can be used to identify cell types contained in complex tissues, most require cell disaggregation and destroy information about where cells reside in relation to their microenvironment. Here, we describe a polytomous key for cell type identification in intact sections of adult mouse prostate and prostatic urethra. The key is organized as a decision tree and initiates with one round of immunostaining for nerve, epithelial, fibromuscular/hematolymphoid, or vascular associated cells. Cell identities are recursively eliminated by subsequent staining events until the remaining pool of potential cell types can be distinguished by direct comparison to other cells...
2017: PloS One
https://www.readbyqxmd.com/read/29144068/going-public-early-disclosure-of-food-risks-for-the-benefit-of-public-health
#3
Benjamin Chapman, Maria Sol Erdozaim, Douglas Powell
Often during an outbreak of foodborne illness, there are health officials who have data indicating that there is a risk prior to notifying the public. During the lag period between the first public health signal and some release of public information, there are decision makers who are weighing evidence with the impacts of going public. Multiple agencies and analysts have lamented that there is not a common playbook or decision tree for how public health agencies determine what information to release and when...
March 2017: Journal of Environmental Health
https://www.readbyqxmd.com/read/29141946/age-related-clonal-hematopoiesis-arch
#4
Liran I Shlush
Age related alterations in the human blood system occur in B cells, T cells, cells of the innate system, as well as in hematopoietic stem and progenitor cells (HSPCs). Interestingly, age related, reduced genetic diversity can be identified both at the stem cell level, but also independently in B cells and T cells. This reduced diversity is most probably related to somatic mutations, or to changes in the micro-environmental niche. Either process can select for specific clones, or cause repeated evolutionary bottlenecks...
November 15, 2017: Blood
https://www.readbyqxmd.com/read/29133915/impact-of-spatial-characteristics-in-the-left-stenotic-coronary-artery-on-the-hemodynamics-and-visualization-of-3d-replica-models
#5
Yang Yang, Xin Liu, Yufa Xia, Xin Liu, Wanqing Wu, Huahua Xiong, Heye Zhang, Lin Xu, Kelvin K L Wong, Hanbin Ouyang, Wenhua Huang
Cardiovascular disease has been the major cause of death worldwide. Although the initiation and progression mechanism of the atherosclerosis are similar, the stenotic characteristics and the corresponding medical decisions are different between individuals. In the present study, we performed anatomic and hemodynamic analysis on 8 left coronary arterial trees with 10 identified stenoses. A novel boundary condition method had been implemented for fast computational fluid dynamics simulations and patient-specific three-dimensional printed models had been built for visualizations...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29132632/improved-detection-of-congestive-heart-failure-via-probabilistic-symbolic-pattern-recognition-and-heart-rate-variability-metrics
#6
Ruhi Mahajan, Teeradache Viangteeravat, Oguz Akbilgic
OBJECTIVE: A timely diagnosis of congestive heart failure (CHF) is crucial to evade a life-threatening event. This paper presents a novel probabilistic symbol pattern recognition (PSPR) approach to detect CHF in subjects from their cardiac interbeat (R-R) intervals. METHOD: PSPR discretizes each continuous R-R interval time series by mapping them onto an eight-symbol alphabet and then models the pattern transition behavior in the symbolic representation of the series...
December 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29132626/early-hospital-mortality-prediction-of-intensive-care-unit-patients-using-an-ensemble-learning-approach
#7
Aya Awad, Mohamed Bader-El-Den, James McNicholas, Jim Briggs
BACKGROUND: Mortality prediction of hospitalized patients is an important problem. Over the past few decades, several severity scoring systems and machine learning mortality prediction models have been developed for predicting hospital mortality. By contrast, early mortality prediction for intensive care unit patients remains an open challenge. Most research has focused on severity of illness scoring systems or data mining (DM) models designed for risk estimation at least 24 or 48h after ICU admission...
December 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29132615/prediction-of-lung-cancer-patient-survival-via-supervised-machine-learning-classification-techniques
#8
Chip M Lynch, Behnaz Abdollahi, Joshua D Fuqua, Alexandra R de Carlo, James A Bartholomai, Rayeanne N Balgemann, Victor H van Berkel, Hermann B Frieboes
Outcomes for cancer patients have been previously estimated by applying various machine learning techniques to large datasets such as the Surveillance, Epidemiology, and End Results (SEER) program database. In particular for lung cancer, it is not well understood which types of techniques would yield more predictive information, and which data attributes should be used in order to determine this information. In this study, a number of supervised learning techniques is applied to the SEER database to classify lung cancer patients in terms of survival, including linear regression, Decision Trees, Gradient Boosting Machines (GBM), Support Vector Machines (SVM), and a custom ensemble...
December 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29131333/examining-the-characteristics-and-clinical-features-of-in-and-between-session-suicide-risk-assessments-among-psychiatric-outpatients
#9
Melanie A Hom, Ian H Stanley, Megan L Rogers, Julia L Sheffler, Katherine R Nelson, Thomas E Joiner, Elisabeth Schramm
OBJECTIVE: To evaluate the characteristics of suicide risk assessments completed using the Decision Tree framework both in and between psychotherapy sessions, clinical features of patients for whom between-session assessments are indicated, and data collected across assessments. METHOD: Data were collected from 1,358 suicide risk assessments conducted with psychiatric outpatients (N = 41) at elevated suicide risk engaged in care at a psychology training clinic...
November 13, 2017: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/29130999/selection-of-character-coding-method-is-not-phylogenetically-neutral-a-test-case-using-hominoids
#10
Steven Worthington
The early stages of phylogenetic inference from morphological data involve a sequence of choices about which analytical methods to employ. At each stage, the selection of one method over another can dramatically impact tree inference. Phylogenetic hypotheses are sensitive to decisions relating to which taxa and characters to select for analysis, whether and how to delimit character states, which taxa to use as outgroups, and how to account for character dependence. Using extant hominoids as a test case, I quantify the degree to which phylogenetic inferences are sensitive to the choice of method used to transform continuously scaled variables into categorical traits...
November 2, 2017: Folia Primatologica; International Journal of Primatology
https://www.readbyqxmd.com/read/29129451/cost-effectiveness-of-maternal-gbs-immunization-in-low-income-sub-saharan-africa
#11
Louise B Russell, Sun-Young Kim, Ben Cosgriff, Sri Ram Pentakota, Stephanie J Schrag, Ajoke Sobanjo-Ter Meulen, Jennifer R Verani, Anushua Sinha
BACKGROUND: A maternal group B streptococcal (GBS) vaccine could prevent neonatal sepsis and meningitis. Its cost-effectiveness in low-income sub-Saharan Africa, a high burden region, is unknown. METHODS: We used a decision tree model, with Markov nodes to project infants' lifetimes, to compare maternal immunization delivered through routine antenatal care with no immunization. 37 countries were clustered on the basis of economic and health resources and past public health performance...
November 9, 2017: Vaccine
https://www.readbyqxmd.com/read/29128878/microfracture-is-more-cost-effective-than-autologous-chondrocyte-implantation-a-review-of-level-1-and-level-2-studies-with-5%C3%A2-year-follow-up
#12
Tommy Frøseth Aae, Per-Henrik Randsborg, Hilde Lurås, Asbjørn Årøen, Øystein Bjerkestrand Lian
PURPOSE: Focal cartilage defects in the knee may have devastating effect on the knee joint, where two of the main surgical treatment options are microfracture and autologous chondrocyte implantation. Comparative studies have failed to establish which method yields the best clinical results. A cost-effectiveness analysis of microfracture and autologous chondrocyte implantation would contribute to the clinical decision process. METHODS: A PubMed search identifying level I and level II studies with 5 year follow-up was performed...
November 11, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29128860/evaluation-of-different-dose-rate-combinations-of-ketamine-romifidine-and-azaperone-for-castration-of-3-4-and-5-6-weeks-old-piglets
#13
V H Cap, P J Hug, T Echtermann, S Von Ah, I Nussbaumer, F Janett, R Bettschart-Wolfensberger
In this study dose rate combinations of ketamine, azaperone and romifidine were tested in 3-4 (G3-4) and 5-6 weeks (G5-6) old piglets according to a dose rate decision tree (DRT) to provide calm anaesthesia induction, reaction-free anaesthesia for castration and smooth recovery within 2 hours. When a combination failed to meet those criteria in 2 piglets, the next dosage of the DRT was tested. In G3-4 four combinations were tested in 14 piglets with dose rates of 10-20 mg/kg ketamine, 3 mg/kg azaperone and 0...
November 2017: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/29127341/classification-rule-for-5-year-cardiovascular-diseases-risk-using-decision-tree-in-primary-care-chinese-patients-with-type-2-diabetes-mellitus
#14
Eric Yuk Fai Wan, Daniel Yee Tak Fong, Colman Siu Cheung Fung, Esther Yee Tak Yu, Weng Yee Chin, Anca Ka Chun Chan, Cindy Lo Kuen Lam
Cardiovascular disease(CVD) is the leading cause of mortality among patients with type 2 diabetes mellitus(T2DM), and a risk classification model for CVD among primary care diabetic patients is pivotal for risk-based interventions and patient information. This study developed a simple tool for a 5-year CVD risk prediction for primary care Chinese patients with T2DM. A retrospective cohort study was conducted on 137,935 primary care Chinese T2DM patients aged 18-79 years without history of CVD between 1 January 2010 and 31 December 2010...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29126761/mr-planimetry-in-neurodegenerative-parkinsonism-yields-high-diagnostic-accuracy-for-psp
#15
Stephanie Mangesius, Anna Hussl, Florian Krismer, Philipp Mahlknecht, Eva Reiter, Susanne Tagwercher, Atbin Djamshidian, Michael Schocke, Regina Esterhammer, Gregor Wenning, Christoph Müller, Christoph Scherfler, Elke R Gizewski, Werner Poewe, Klaus Seppi
INTRODUCTION: Several previous studies examined different brainstem-derived MR planimetric measures with regards to their diagnostic accuracy in separating patients with neurodegenerative parkinsonian disorders and reported conflicting results. The current study aimed to compare their performance in a well-characterized sample of patients with neurodegenerative parkinsonian disorders. METHODS: MR planimetric measurements were assessed in a large retrospective cohort of 55 progressive supranuclear palsy (PSP), 194 Parkinson's disease (PD) and 63 multiple system atrophy (MSA) patients...
October 31, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29126594/seeing-the-forest-beyond-the-trees-predicting-survival-in-burn-patients-with-machine-learning
#16
Adrienne N Cobb, Witawat Daungjaiboon, Sarah A Brownlee, Anthony J Baldea, Arthur P Sanford, Michael M Mosier, Paul C Kuo
BACKGROUND: This study aims to identify predictors of survival for burn patients at the patient and hospital level using machine learning techniques. METHODS: The HCUP SID for California, Florida and New York were used to identify patients admitted with a burn diagnosis and merged with hospital data from the AHA Annual Survey. Random forest and stochastic gradient boosting (SGB) were used to identify predictors of survival at the patient and hospital level from the top performing model...
November 7, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/29125075/-treatment-of-paracetamol-intoxication-taking-into-consideration-dosage-route-of-administration-and-risk-factors
#17
A Koppen, A J H P van Riel, A Nugteren-van Lonkhuyzen, I de Vries
- Paracetamol is the drug for which the Dutch Poisons Information Centre (DPIC) receives the most information requests.- The protocol for the treatment of single acute oral paracetamol intoxications is clear, however, ambiguity exists concerning the treatment of intoxications with repeated supratherapeutic doses of paracetamol.- Paracetamol intoxications with liquid preparations, extended-release tablets, exposure routes other than oral, and repeated supratherapeutic ingestions require a tailored approach.- An increased risk of liver damage due to paracetamol intoxication has to be taken into account for patients who consume excessive levels of alcohol, are malnourished or have a pre-existing liver condition...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29123494/the-ambiguity-of-artworks-a-guideline-for-empirical-aesthetics-research-with-artworks-as-stimuli
#18
Gregor U Hayn-Leichsenring
The aim of this work is to provide researchers from the field of aesthetics with a guideline on working with artworks as stimuli. Empirical aesthetics research is complicated by the uncertainty of the object of research. There is no way to unquestionably tell whether an object is an artwork or not. However, although the extension of the term artwork (i.e., the range of objects to which this concept applies) remains vague, the different intensions of the term artwork (i.e., the internal concept that constitutes a formal definition) are well defined...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29122738/performance-of-a-mobile-phone-app-based-participatory-syndromic-surveillance-system-for-acute-febrile-illness-and-acute-gastroenteritis-in-rural-guatemala
#19
Daniel Olson, Molly Lamb, Maria Renee Lopez, Kathryn Colborn, Alejandra Paniagua-Avila, Alma Zacarias, Ricardo Zambrano-Perilla, Sergio Ricardo Rodríguez-Castro, Celia Cordon-Rosales, Edwin Jose Asturias
BACKGROUND: With their increasing availability in resource-limited settings, mobile phones may provide an important tool for participatory syndromic surveillance, in which users provide symptom data directly into a centralized database. OBJECTIVE: We studied the performance of a mobile phone app-based participatory syndromic surveillance system for collecting syndromic data (acute febrile illness and acute gastroenteritis) to detect dengue virus and norovirus on a cohort of children living in a low-resource and rural area of Guatemala...
November 9, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29122433/anterior-cruciate-ligament-graft-removal-versus-retention-in-the-setting-of-septic-arthritis-after-reconstruction-a-systematic-review-and-expected-value-decision-analysis
#20
REVIEW
Nicholas Kusnezov, Emmanuel D Eisenstein, John C Dunn, Aaron J Wey, David R Peterson, Brian R Waterman
PURPOSE: To provide further guidance on the optimal decision between anterior cruciate ligament (ACL) graft removal versus retention in the setting of septic arthritis following reconstruction using an expected value decision analysis. METHODS: A systematic review and expected value decision analysis and sensitivity analyses were performed to quantify the clinical decision. A decision tree was created with 5 outcomes of interest: nonoperative complications, revision surgery, early reoperation, late reoperation, and "well...
November 6, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
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