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https://www.readbyqxmd.com/read/29351677/use-of-risk-model-for-assessment-of-residents-perception-of-complexity-of-surgical-steps-example-of-modular-component-steps-of-lumbar-spinal-fusion-surgery
#1
Jeffrey S Raskin, Jesse J Liu, Katherine Holste, Sarah Brown, Fran Hardaway, Priscilla Pang, Ahmed M Raslan
BACKGROUND: Quality improvement projects increasingly emphasize standardization of surgical work flow to optimize operative room efficiency. Removing special cause variability resulting from nonsurgical waste is an obvious target; however, resident surgical education must be maintained, even in the setting of process improvement. OBJECTIVE: To describe the impact of resident-identified "risky" or "uncomfortable" procedural steps on operative time during transforaminal lumbar interbody fusion (TLIF)...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29351652/early-results-in-flow-diverter-sizing-by-computational-simulation-quantification-of-size-change-and-simulation-error-assessment
#2
Ana Paula Narata, Jordi Blasco, Luis San Roman, Juan Miguel Macho, Hector Fernandez, Raquel Kale Moyano, Renaud Winzenrieth, Ignacio Larrabide
BACKGROUND: Sizing of flow diverters (FDs) stent in the treatment of intracranial aneurysms is a challenging task due to the change of stent length after implantation. OBJECTIVE: To quantify the size change and assess the error in length prediction in 82 simulated FD deployments. METHODS: Eighty-two consecutive patients treated with FDs were retrospectively analyzed. Implanted FD length was measured from angiographic images and compared to the nominal sizes of the implanted device...
January 17, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29351630/prevalence-and-trends-of-transfusion-transmittable-infections-among-blood-donors-in-southwest-china
#3
Ting Xu, Zhong-Mei Yi, Jun-Mei Luo, He-Lian Yu, Ya-Han Fan, Hua Lu, Shu-Ming Zhao, Tian-Lun Jiang
Background: The high prevalence of transfusion-transmitted infections (TTIs) is causing serious harm to human health worldwide. The aim of this research was to assess the prevalence and influencing factors of TTIs in Southwest China. Methods: A retrospective study of blood donor records from January 2008 to December 2015 was conducted. All samples were screened for HBV, HCV, HIV and syphilis. The donor's data was recorded and analyzed statistically using SPSS software...
January 17, 2018: Journal of Public Health
https://www.readbyqxmd.com/read/29351612/a-mutational-signature-associated-with-alcohol-consumption-and-prognostically-significantly-mutated-driver-genes-in-esophageal-squamous-cell-carcinoma
#4
X C Li, M Y Wang, M Yang, H J Dai, B F Zhang, W Wang, X L Chu, X Wang, H Zheng, R F Niu, W Zhang, K X Chen
Background: Esophageal squamous cell carcinoma (ESCC) is often diagnosed at an advanced and incurable stage. Information on driver genes and prognosticators in ESCC remains incomplete. The objective was to elucidate significantly mutated genes (SMGs), mutational signatures, and prognosticators in ESCC. Patients and Methods: Three MutSig algorithms (i.e. MutSigCV, MutSigCL and MutSigFN) and "20/20+" ratio-metric were employed to identify SMGs. Nonnegative matrix factorization was used to decipher mutational signatures...
January 16, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29351572/differential-susceptibility-in-ambient-particle-related-first-ever-stroke-onset-risk-findings-from-a-national-case-crossover-study
#5
Tianjia Guan, Tao Xue, Yuanli Liu, Yixuan Zheng, Siyuan Fan, Kebin He, Qiang Zhang
Different populations may respond differently to ambient fine particulate (PM2.5) exposure; however, less is known about the distribution of susceptible individuals among the entire population. We conducted a time-stratified case-crossover design to assess associations between stroke risk and PM2.5. During 2013-2015, 1,356 first-ever stroke onset events were derived from a large representative sample, the China National Stroke Screening Survey (CNSSS) database; daily PM2.5 averages with a spatial resolution of 0...
January 17, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29351331/the-association-between-previous-and-future-severe-exacerbations-of-chronic-obstructive-pulmonary-disease-updating-the-literature-using-robust-statistical-methodology
#6
Mohsen Sadatsafavi, Hui Xie, Mahyar Etminan, Kate Johnson, J Mark FitzGerald
BACKGROUND: There is minimal evidence on the extent to which the occurrence of a severe acute exacerbation of COPD that results in hospitalization affects the subsequent disease course. Previous studies on this topic did not generate causally-interpretable estimates. Our aim was to use corrected methodology to update previously reported estimates of the associations between previous and future exacerbations in these patients. METHODS: Using administrative health data in British Columbia, Canada (1997-2012), we constructed a cohort of patients with at least one severe exacerbation, defined as an episode of inpatient care with the main diagnosis of COPD based on international classification of diseases (ICD) codes...
2018: PloS One
https://www.readbyqxmd.com/read/29351328/joint-modeling-of-correlated-binary-outcomes-the-case-of-contraceptive-use-and-hiv-knowledge-in-bangladesh
#7
Di Fang, Renyuan Sun, Jeffrey R Wilson
Recent advances in statistical methods enable the study of correlation among outcomes through joint modeling, thereby addressing spillover effects. By joint modeling, we refer to simultaneously analyzing two or more different response variables emanating from the same individual. Using the 2011 Bangladesh Demographic and Health Survey, we jointly address spillover effects between contraceptive use (CUC) and knowledge of HIV and other sexually transmitted diseases. Jointly modeling these two outcomes is appropriate because certain types of contraceptive use contribute to the prevention of HIV and STDs and the knowledge and awareness of HIV and STDs typically lead to protection during sexual intercourse...
2018: PloS One
https://www.readbyqxmd.com/read/29351300/empirical-validation-of-an-agent-based-model-of-wood-markets-in-switzerland
#8
Stefan Holm, Lorenz M Hilty, Renato Lemm, Oliver Thees
We present an agent-based model of wood markets and show our efforts to validate this model using empirical data from different sources, including interviews, workshops, experiments, and official statistics. Own surveys closed gaps where data was not available. Our approach to model validation used a variety of techniques, including the replication of historical production amounts, prices, and survey results, as well as a historical case study of a large sawmill entering the market and becoming insolvent only a few years later...
2018: PloS One
https://www.readbyqxmd.com/read/29351291/allometric-biomass-equations-for-12-tree-species-in-coniferous-and-broadleaved-mixed-forests-northeastern-china
#9
Huaijiang He, Chunyu Zhang, Xiuhai Zhao, Folega Fousseni, Jinsong Wang, Haijun Dai, Song Yang, Qiang Zuo
Understanding forest carbon budget and dynamics for sustainable resource management and ecosystem functions requires quantification of above- and below-ground biomass at individual tree species and stand levels. In this study, a total of 122 trees (9-12 per species) were destructively sampled to determine above- and below-ground biomass of 12 tree species (Acer mandshuricum, Acer mono, Betula platyphylla, Carpinus cordata, Fraxinus mandshurica, Juglans mandshurica, Maackia amurensis, P. koraiensis, Populus ussuriensis, Quercus mongolica, Tilia amurensis and Ulmus japonica) in coniferous and broadleaved mixed forests of Northeastern China, an area of the largest natural forest in the country...
2018: PloS One
https://www.readbyqxmd.com/read/29351271/risk-factors-for-low-birth-weight-according-to-the-multiple-logistic-regression-model-a-retrospective-cohort-study-in-jos%C3%A3-mar%C3%A3-a-morelos-municipality-quintana-roo-mexico
#10
José Franco Monsreal, Miriam Del Ruby Tun Cobos, José Ricardo Hernández Gómez, Lidia Esther Del Socorro Serralta Peraza
INTRODUCTION: Low birth weight has been an enigma for science over time. There have been many researches on its causes and its effects. Low birth weight is an indicator that predicts the probability of a child surviving. In fact, there is an exponential relationship between weight deficit, gestational age, and perinatal mortality. Multiple logistic regression is one of the most expressive and versatile statistical instruments available for the analysis of data in both clinical and epidemiology settings, as well as in public health...
January 17, 2018: Medwave
https://www.readbyqxmd.com/read/29351244/school-contextual-features-of-social-disorder-and-mental-health-complaints-a-multilevel-analysis-of-swedish-sixth-grade-students
#11
Bitte Modin, Stephanie Plenty, Sara B Låftman, Malin Bergström, Marie Berlin, Per A Gustafsson, Anders Hjern
This study addressed school-contextual features of social disorder in relation to sixth-grade students' experiences of bullying victimization and mental health complaints. It investigated, firstly, whether the school's concentrations of behavioural problems were associated with individual students' likelihood of being bullied, and secondly, whether the school's concentrations of behavioural problems and bullying victimization predicted students' emotional and psychosomatic health complaints. The data were derived from the Swedish National Survey of Mental Health among Children and Young People, carried out among sixth-grade students (approximately 12-13 years old) in Sweden in 2009...
January 19, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29350922/computing-curvature-sensitivity-of-biomolecules-in-membranes-by-simulated-buckling
#12
Federico Elias-Wolff, Martin Lindén, Alexander P Lyubartsev, Erik G Brandt
Membrane curvature sensing, where the binding free energies of membrane-associated molecules depend on the local membrane curvature, is a key factor to modulate and maintain the shape and organization of cell membranes. However, the microscopic mechanisms are not well understood, partly due to absence of efficient simulation methods. Here, we describe a method to compute the curvature dependence of the binding free energy of a membrane-associated probe molecule that interacts with a buckled membrane, which has been created by lateral compression of a flat bilayer patch...
January 19, 2018: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29350706/symptom-burden-and-self-advocacy-exploring-the-relationship-among-female-cancer-survivors%C3%A2
#13
Teresa L Hagan, Stephanie Gilbertson-White, Susan M Cohen, Jennifer S Temel, Joseph A Greer, Heidi S Donovan
BACKGROUND: Although patient self-advocacy is a critical component of patient-centered care, the association between symptom burden and self-
advocacy has received little attention. 
. OBJECTIVES: This analysis evaluates the degree to which self-advocacy is associated with symptom burden among women with a history of cancer. 
. METHODS: Participants completed online or paper questionnaires. Descriptive statistics and ordinary least squares regression models were used to analyze the association between the three dimensions of self-advocacy and two dimensions of symptom burden...
February 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29350598/diffusion-tensor-imaging-and-ventricle-volume-quantification-in-patients-with-chronic-shunt-treated-hydrocephalus-a-matched-case-control-study
#14
Kristy Tan, Avital Meiri, Wenzhu B Mowrey, Rick Abbott, James T Goodrich, Adam L Sandler, Asif K Suri, Michael L Lipton, Mark E Wagshul
OBJECTIVE The object of this study was to use diffusion tensor imaging (DTI) and tract-based spatial statistics (TBSS) to characterize the long-term effects of hydrocephalus and shunting on white matter integrity and to investigate the relationship of ventricular size and alterations in white matter integrity with headache and quality-of-life outcome measures. METHODS Patients with shunt-treated hydrocephalus and age- and sex-matched healthy controls were recruited into the study and underwent anatomical and DTI imaging on a 3-T MRI scanner...
January 19, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29350555/outcomes-of-latarjet-procedure-compared-with-bankart-repair-for-recurrent-traumatic-anterior-shoulder-instability
#15
Kellie C Huxel Bliven, Gail P Parr
Reference/Citation:  An VV, Sivakumar BS, Phan K, Trantalis J. A systematic review and meta-analysis of clinical and patient-reported outcomes following two procedures for recurrent traumatic anterior instability of the shoulder: Latarjet procedure vs. Bankart repair. J Shoulder Elbow Surg. 2016;25(5):853-863. CLINICAL QUESTION:   Are clinical and patient-reported outcomes different between the Latarjet and Bankart repair stabilization procedures when performed for recurrent traumatic anterior shoulder instability? DATA SOURCES:   Ovid MEDLINE, PubMed, Cochrane databases, American College of Physicians Journal Club, and Database of Abstracts of Review of Effectiveness were searched up to June 2015...
January 19, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29350507/hospital-participation-in-meaningful-use-and-racial-disparities-in-readmissions
#16
Mark Aaron Unruh, Hye Young Jung, Rainu Kaushal, Joshua R Vest
OBJECTIVES: To measure the impact of hospital participation in Meaningful Use (MU) on disparities in 30-day readmissions associated with race. STUDY DESIGN: A retrospective cohort study that compared the likelihood of 30-day readmission for Medicare beneficiaries discharged from hospitals participating in Stage 1 of MU with the likelihood of readmission for beneficiaries concurrently discharged from hospitals that were not participating in the initiative. METHODS: Inpatient claims for 2,414,205 Medicare beneficiaries from Florida, New York, and Washington State were used as the primary data source...
January 2018: American Journal of Managed Care
https://www.readbyqxmd.com/read/29350495/the-current-landscape-of-3d-in-vitro-tumor-models-what-cancer-hallmarks-are-accessible-for-drug-discovery
#17
REVIEW
Darren Rodenhizer, Teresa Dean, Elisa D'Arcangelo, Alison P McGuigan
Cancer prognosis remains a lottery dependent on cancer type, disease stage at diagnosis, and personal genetics. While investment in research is at an all-time high, new drugs are more likely to fail in clinical trials today than in the 1970s. In this review, a summary of current survival statistics in North America is provided, followed by an overview of the modern drug discovery process, classes of models used throughout different stages, and challenges associated with drug development efficiency are highlighted...
January 19, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29350455/a-novel-prognostic-six-cpg-signature-in-glioblastomas
#18
An-An Yin, Nan Lu, Amandine Etcheverry, Marc Aubry, Jill Barnholtz-Sloan, Lu-Hua Zhang, Jean Mosser, Wei Zhang, Xiang Zhang, Yu-He Liu, Ya-Long He
AIMS: We aimed to identify a clinically useful biomarker using DNA methylation-based information to optimize individual treatment of patients with glioblastoma (GBM). METHODS: A six-CpG panel was identified by incorporating genome-wide DNA methylation data and clinical information of three distinct discovery sets and was combined using a risk-score model. Different validation sets of GBMs and lower-grade gliomas and different statistical methods were implemented for prognostic evaluation...
January 19, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29350344/the-relationship-between-exercise-dose-and-health-related-quality-of-life-with-a-phase-iii-cardiac-rehabilitation-program
#19
Borja Del Pozo-Cruz, Graeme Carrick-Ranson, Stacey Reading, Paul Nolan, Lance C Dalleck
PURPOSE: To quantify the relationship between the change in exercise dose and health-related quality of life (HRQoL) in a cohort of patients participating in a community-based phase-3 cardiac rehabilitation (CR) program. METHODS: A retrospective, pre-experimental (no control group) design of 58 participants that completed a phase-3, 12-week exercise-based CR program was used to test the current hypothesis. Self-reported HRQoL (36-Item Short Form Health Survey Version 2, SF-36v2) was assessed prior and after completing the CR program...
January 19, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29350334/the-triglyceride-glucose-index-an-insulin-resistance-marker-in-newborns
#20
Eva Gesteiro, Sara Bastida, Laura Barrios, Francisco J Sánchez-Muniz
The study aims to assess the utility of the triglyceride-glucose index (TyG) as a marker of insulin resistance (IR) in neonates. TyG and the homeostatic model assessment (HOMA-IR) values were compared in 196 singleton, term normoweight and without distress newborns. A Decision Tree procedure (CHAID) was used to classify cases into groups or predict values of a dependent (Ln HOMA-IR) variable. Three nodes were drawn for TyG: ≤ 6.7, > 6.7-7.8 and > 7.8 (p < 0.0001; F = 20.52). The predictability of those TyG values vs HOMA-IR was statistically significant (p < 0...
January 19, 2018: European Journal of Pediatrics
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