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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/28343325/mri-can-accurately-detect-meniscal-ramp-lesions-of-the-knee
#2
Justin W Arner, Elmar Herbst, Jeremy M Burnham, Ashish Soni, Jan-Hendrik Naendrup, Adam Popchak, Freddie H Fu, Volker Musahl
PURPOSE: Posterior horn meniscal tears are commonly found in conjunction with anterior cruciate ligament (ACL) injury. Some believe tears in the posterior meniscocapsular zone, coined ramp lesions, are important to knee stability. The purpose of this study was to determine whether pre-operative MRI evaluation was able to accurately and reproducibly identify ramp lesions. METHODS: Three blinded reviewers assessed MRIs twice for the presence of ramp lesions in patients undergoing ACL reconstruction...
March 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28343321/a-risk-score-based-on-admission-characteristics-to-predict-progressive-hemorrhagic-injury-from-traumatic-brain-injury-in-children
#3
Guo-Wen Hu, Hai-Li Lang, Hua Guo, Lei Wu, Pei Zhang, Wei Kuang, Xin-Gen Zhu
Traumatic brain injury (TBI) is one of the leading causes of death and disability in children, and progressive hemorrhagic injury (PHI) post TBI is associated with poor outcomes. Therefore, the objective of this study was to develop and validate a prognostic model that uses the information available at admission to determine the likelihood of PHI occurrence after TBI in children. The identified demographic data, cause of injury, clinical predictors on admission, computed tomography scan characteristics, and routine laboratory parameters were collected and used to develop a PHI prognostic model with logistic regression analysis, and the prediction model was validated in 68 children...
March 25, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28343314/rectus-abdominis-atrophy-after-ventral-abdominal-incisions-midline-versus-chevron
#4
Y Vigneswaran, E Poli, M S Talamonti, S P Haggerty, J G Linn, M B Ujiki
PURPOSE: Although many outcomes have been compared between a midline and chevron incision, this is the first study to examine rectus abdominis atrophy after these two types of incisions. METHODS: Patients undergoing open pancreaticobiliary surgery between 2007 and 2011 at our single institution were included in this study. Rectus abdominis muscle thickness was measured on both preoperative and follow-up computed tomography (CT) scans to calculate percent atrophy of the muscle after surgery...
March 25, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28343194/lipid-metabolism-and-feeding-habits-of-indigenous-peoples-of-the-sakha-republic-yakutia-in-today-s-socio-economic-development
#5
Vadim G Krivoshapkin, Anna I Sivtseva, Elena N Sivtseva, Svetlana S Maximova, Leonid F Timofeev, Aytalina S Golderova
INTRODUCTION: By results of a single-step epidemiological research indicators of a lipid range at 355 Evenks of the Olenyoksky District of the Republic of Sakha (Yakutia) are estimated. The aim of this research was assessment of lipid exchange and character of a delivery of Evenks of the item of Zhilinda. MATERIAL AND METHODS: 355 evenks aged over 20 years (170 men, women-185). Total cholesterol (OCHS), cholesterol (low-density lipoproteins (LDL-CHOLESTEROL), highdensity lipoprotein cholesterol ((XC-LVNP), triglycerides (TG), the calculated coefficient of haemoglobin (Ka)...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343166/development-and-validation-of-a-yoga-module-for-parkinson-disease
#6
Noopur Kakde, Kashinath G Metri, Shivarama Varambally, Raghuram Nagaratna, H R Nagendra
Background Parkinson's disease (PD), a progressive neurodegenerative disease, affects motor and nonmotor functions, leading to severe debility and poor quality of life. Studies have reported the beneficial role of yoga in alleviating the symptoms of PD; however, a validated yoga module for PD is unavailable. This study developed and validated an integrated yoga module(IYM) for PD. Methods The IYM was prepared after a thorough review of classical yoga texts and previous findings. Twenty experienced yoga experts, who fulfilled the inclusion criteria, were selected validating the content of the IYM...
March 25, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28343052/season-of-treatment-initiation-with-antidepressants-and-suicidal-behavior-a-population-based-cohort-study-in-sweden
#7
Georgios D Makris, Johan Reutfors, Morten Andersen, Richard A White, Lisa Ekselius, Fotios C Papadopoulos
BACKGROUND: Decreased binding capacity of SERT in the prefrontal cortex has been observed in both suicide victims and suicide attempters. Moreover, some studies have shown that SERT has a seasonal variation with lower binding capacity in the spring and summer, which coincides with a seasonal peak of suicides. Our aim was to explore whether the season of treatment initiation with antidepressants is associated with suicide or suicide attempt and compare it with the underlying suicide seasonality in the general population...
March 10, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28343046/perioperative-hemoglobin-a1c-as-a-predictor-of-deep-infection-following-single-level-lumbar-decompression-in-patients-with-diabetes
#8
Jourdan M Cancienne, Brian C Werner, Dennis Q Chen, Hamid Hassanzadeh, Adam L Shimer
BACKGROUND CONTEXT: Although multiple studies have cited diabetes mellitus as a risk factor decreased functional outcomes, increased infectious complications, and overall increased reoperation rate following degenerative lumbar spinal surgery, few have investigated how perioperative glycemic control influences such complications. PURPOSE: The primary goal of the present study was to use a national database to evaluate the association of perioperative glycemic control as demonstrated by Hemoglobin A1c levels in patients with diabetes undergoing primary, single level decompression without concomitant fusion with the incidence of deep postoperative infection following requiring operative irrigation and debridement...
March 22, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28343036/behaviour-of-137-cs-in-forest-humus-detected-across-the-territory-of-the-czech-republic
#9
Jan Škrkal, Helena Pilátová, Petr Rulík, Ivan Suchara, Julie Sucharová, Marie Holá
The activity concentration of (137)Cs in samples of coniferous forest humus collected across the territory of the Czech Republic in 1995 and 2005 was analysed, and it was found significantly correlated with the surface deposition caused by the Chernobyl accident. The effective (12.8 y) and environmental (22.3 y) half-lives of radiocaesium in humus were calculated and compared with those in spruce bark. The impact of important forest stand factors, that is, precipitation, content of organic matter, age of trees and pH, on the behaviour of (137)Cs in humus was studied...
March 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28343025/recording-skeletal-completeness-a-standardised-approach
#10
Samantha K Rowbotham, Soren Blau, Jacqueline Hislop-Jambrich
Recording the preservation of human skeletal remains is the foundation of osteological analyses for forensic and archaeological skeletal material. Methods for recording the skeletal completeness, one of the components of skeletal preservation documentation, are however currently non-standardised and subjective. To provide practitioners with a scientific means to accurately quantify skeletal completeness in an adult skeleton, percentage values for each skeletal element have been established. Using computed tomography (CT) volume rendering applications and post-mortem CT skeletal data for one adult individual, the percentage value for each bone relative to the complete skeleton was calculated based on volume...
March 8, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28343007/bioconcentration-and-multi-biomarkers-of-organic-uv-filters-bm-dbm-and-od-paba-in-crucian-carp
#11
Binni Ma, Guanghua Lu, Jianchao Liu, Zhenhua Yan, Haohan Yang, Ting Pan
Organic UV filters (OUV-Fs) are increasingly used in sunscreens and personal care products. In the present work, the bioconcentration and multi-biomarker effects of butyl methoxydibenzoylmethane (BM-DBM) and ethylhexyl dimethyl p-aminobenzoate (OD-PABA) were investigated in crucian carp (Carassius auratus). The fish were exposed to various concentrations of BM-DBM (3.88, 35.61, 181.85 and 337.15μg/L), OD-PABA (4.66, 53.83, 264.22 and 459.32μg/L) and their mixture (2.31+2.79, 23.69+26.18, 97.37+134.81 and 193...
March 23, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28342992/estimating-removals-of-contaminants-of-emerging-concern-from-wastewater-treatment-plants-the-critical-role-of-wastewater-hydrodynamics
#12
Zeina Baalbaki, Tamanna Sultana, Chris Metcalfe, Viviane Yargeau
Accurate data is needed to evaluate the capacity of wastewater treatments plants (WWTPs) to remove contaminants of emerging concern (CECs). The variability of CEC removals reported in the literature has raised questions about the methods used to estimate removals. In this study, we used the recently proposed "fractionated approach" to account for the influence of hydrodynamics in WWTPs and applied this method for estimating the removal of 23 target CECs. Data on the conductivity and temperature of wastewater at two WWTPs were used to determine the hydraulic model that best described the flow regime of treatment units...
March 19, 2017: Chemosphere
https://www.readbyqxmd.com/read/28342973/effects-of-a-sustained-release-formulation-of-1-25-dihydroxyvitamin-d3-glycosides-for-milk-fever-prevention-on-serum-1-25-dihydroxyvitamin-d3-calcium-and-phosphorus-in-dairy-cows
#13
Heinrich Bachmann, Michael Lanz, Susanne Kehrle, Wolfgang Bittner, Annick Toggenburger, Georg A Mathis, Walter Rambeck
Milk fever (MF) is a metabolic disease in dairy cows around parturition. The clinical lead sign is muscular paresis leading in severe cases to paralysis of the affected animal. Multiparturient animals of high performing dairy breeds are most likely to be affected and have a high probability of recurrence. An acute drop in blood calcium levels causes the disease when the demand for calcium at the onset of lactation exceeds the ability to replete blood calcium levels through mobilization from bone and intestinal uptake...
March 22, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28342950/progression-of-unresected-intraductal-papillary-mucinous-neoplasms-of-the-pancreas-to-cancer-a-systematic-review-and-meta-analysis
#14
Sang Hyun Choi, Seong Ho Park, Kyung Won Kim, Ja Youn Lee, Sang Soo Lee
BACKGROUND & AIMS: It is not clear how best to manage patients with low-risk intraductal papillary mucinous neoplasms (IPMNs) of the pancreas, because little is known about IPMN progression to cancer. We sought to determine the cumulative incidence of development of pancreatic cancer in persons with unresected IPMNs (particularly low-risk IPMNs). METHODS: We performed a systematic search of the MEDLINE and EMBASE databases, through November 31, 2016, for studies reporting the cumulative incidence of pancreatic cancer in patients with unresected IPMNs, or studies that provided data in sufficient detail for us to calculate cumulative incidence values...
March 22, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28342919/radiation-exposure-to-the-surgeon-during-ultrasound-assisted-transforaminal-percutaneous-endoscopic-lumbar-discectomy-a-prospective-study
#15
Ruihui Wu, Xuqiang Liao, Hong Xia
PURPOSE: To determine the radiation dose to the surgeon during ultrasound-assisted transforaminal percutaneous endoscopic lumbar discectomy (transforaminal PELD) for lumbar disc herniation, and investigate whether the usage of ultrasonography could reduce the radiation exposure to surgeon. METHODS: The stages of needle insertion and foraminal plasty for transforaminal PELD were performed under ultrasound guidance and confirmed by fluoroscopy according to the standard technique by two spinal surgeons separately in 25 transforaminal PELDs (25 levels)...
March 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28342903/structural-equation-modeling-based-effect-size-indices-were-used-to-evaluate-and-interpret-the-impact-of-response-shift-effects
#16
M G E Verdam, F J Oort, M A G Sprangers
OBJECTIVE: The investigation of response shift in patient-reported outcomes (PROs) is important in both clinical practice and research. Insight into the presence and strength of response shift effects is necessary for a valid interpretation of change. STUDY DESIGN AND SETTING: When response shift is investigated through structural equation modeling (SEM), observed change can be decomposed into: 1) change due to recalibration response shift, 2) change due to reprioritization and/or reconceptualization response shift, and 3) change due to change in the construct of interest...
March 22, 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28342840/the-ratio-of-contrast-volume-to-glomerular-filtration-rate-predicts-acute-kidney-injury-and-mortality-after-transcatheter-aortic-valve-implantation
#17
Francesco Giannini, Azeem Latib, Richard J Jabbour, Massimo Slavich, Susanna Benincasa, Alaide Chieffo, Matteo Montorfano, Stefano Stella, Nicola Buzzatti, Ottavio Alfieri, Antonio Colombo
OBJECTIVE: The aim of this study was to assess the impact of the ratio of volume of contrast medium to the glomerular filtration rate (V/GFR) on acute kidney injury (AKI) after transcatheter aortic valve implantation (TAVI) and its impact on long-term mortality. METHODS: We retrospectively calculated V/GFR in 397 patients undergoing TAVI. AKI was defined as VARC-modified Risk, Injury, Failure, Loss and End-stage (RIFLE) kidney disease score≥2. RESULTS: The incidence of AKI was 17...
February 20, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28342831/inference-of-direct-and-multistep-effective-connectivities-from-functional-connectivity-of-the-brain-and-of-relationships-to-cortical-geometry
#18
Grishma Mehta-Pandejee, P A Robinson, James A Henderson, K M Aquino, Somwrita Sarkar
BACKGROUND: The problem of inferring effective brain connectivity from functional connectivity is under active investigation, and connectivity via multistep paths is poorly understood. NEW METHOD: A method is presented to calculate the direct effective connection matrix (deCM), which embodies direct connection strengths between brain regions, from functional CMs (fCMs) by minimizing the difference between an experimental fCM and one calculated via neural field theory from an ansatz deCM based on an experimental anatomical CM...
March 22, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28342801/geographic-disparities-of-pneumonia-specific-under-5-mortality-rates-in-mainland-china-from-1996-to-2015-a-population-based-study
#19
Leni Kang, Chunhua He, Lei Miao, Juan Liang, Jun Zhu, Xiaohong Li, Qi Li, Yanping Wang
OBJECTIVES: This study aims to investigate the disparities of pneumonia-specific under-5 mortality rate (PU5MR) among and within three geographic regions in Mainland China from 1996 to 2015. METHODS: We used data from China's Under-5 Child Mortality Surveillance System (U5CMSS) and grouped the study period by every two years. The Cochran-Armitage trend test and Cochran-Mantel-Haenszel test were used to assess trends and differences in PU5MR among and within geographic regions...
March 22, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28342798/allele-frequencies-and-other-forensic-parameters-of-the-hid-ion-ampliseq%C3%A2-identity-panel-markers-in-basques-using-the-ion-torrent-pgm%C3%A2-platform
#20
O García, A Soto, I Yurrebaso
The HID-Ion AmpliSeq™ Identity Panel amplifies 90 autosomal SNPs and 34 Y- SNPs with massively parallel sequencing (MPS) using the Ion Torrent PGM™ platform. In the present study, 105 Basques were analyzed to assess this panel. All loci were in Hardy-Weinberg equilibrium and no association between them was detected. Forensic parameters were calculated as 5.74×10(-36) for combined match probability and 99.99998% for combined power of exclusion. In conclusion, the HID Identity panel and the use of this new MPS technology are very promising tools for paternity testing and human identification in routine casework in the forensic field...
March 8, 2017: Forensic Science International. Genetics
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