keyword
MENU ▼
Read by QxMD icon Read
search

Operational research

keyword
https://www.readbyqxmd.com/read/28214229/-iso%C3%A2-9001%C3%A2-certification-of-innovation-and-clinical-research-departments-extending-the-scope-of-health-assessment
#1
C Sambou, S Guillemaut, M Morelle, A Achache, A-G Le Corroller, D Perol, L Perrier
BACKGROUND: The International organization for standardization (ISO) is the world leader in providing industrial and commercial standards and certifications. Beyond medical devices, four French clinical research and innovation departments have received an ISO 9001 certification (the standard for quality management). Simultaneously, medico-economic studies have become increasingly important in the public decision process. Using the clinical research and innovation department from the Léon-Bérard Cancer Center as an example, the purpose of this article is to show how the scope of the ISO 9001 certification has been extended to cover medico-economic studies...
February 14, 2017: Revue D'épidémiologie et de Santé Publique
https://www.readbyqxmd.com/read/28214134/intensification-of-heterogeneously-catalyzed-suzuki-miyaura-cross-coupling-reaction-using-ultrasound-understanding-effect-of-operating-parameters
#2
Sonam V Sancheti, Parag R Gogate
Palladium-catalyzed Suzuki-Miyaura cross-coupling reaction is a significant reaction for obtaining industrially important products. The current research work deals with intensification of reaction of 4-bromoanisole and phenylboronic acid catalyzed with 5wt% Pd/C (5% by weight Pd supported on C available as commercial catalyst) using ultrasound and more importantly, without use of any additional phase transfer catalyst. Heterogeneous catalyst has been selected in the present work so as to harness the benefits of easy separation and the possible limitations of heterogeneous operation are minimized by introducing ultrasonic irradiations...
January 27, 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28214035/transesophageal-echocardiography-in-swine-establishment-of-a-baseline
#3
Katharina Huenges, Saskia Pokorny, Rouven Berndt, Jochen Cremer, Georg Lutter
The porcine model is a commonly used animal model in cardiovascular research. Along with new innovative operative techniques, choice of the optimal imaging technique is crucial. Transesophageal echocardiography (TEE) is a reliable imaging tool is highly important in a large number of experimental evaluations. But so far, TEE data for swine are limited, and few standard values have been established for the porcine model. The experience and baseline results for TEE in 45 swine are presented in this study. A full TEE examination was conducted in 45 German landrace or German large white swine, with an average body weight of 49 ± 3 kg, before experimental off-pump mitral valved stent implantation...
February 15, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28213888/transfusion-in-critical-care-a-uk-regional-audit-of-current-practice
#4
J O M Plumb, M G Taylor, E Clissold, M P W Grocott, R Gill
A consistent message within critical care publications has been that a restrictive transfusion strategy is non-inferior, and possibly superior, to a liberal strategy for stable, non-bleeding critically ill patients. Translation into clinical practice has, however, been slow. Here, we describe the degree of adherence to UK best practice guidelines in a regional network of nine intensive care units within Wessex. All transfusions given during a 2-month period were included (n = 444). Those given for active bleeding or within 24 h of major surgery, trauma or gastrointestinal bleeding were excluded (n = 148)...
February 18, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28213644/circulating-micrornas-and-diabetes-mellitus-a-novel-tool-for-disease-prediction-diagnosis-and-staging
#5
REVIEW
G Sebastiani, L Nigi, G E Grieco, F Mancarella, G Ventriglia, F Dotta
Diabetes is a complex, multifactorial group of metabolic diseases characterized by chronic hyperglycaemia due to pancreatic beta-cell dysfunction and/or loss. It is characterized by an asymptomatic and highly variable prodromic phase, which renders diabetes mellitus difficult to be predicted with sufficient accuracy. Despite several efforts in the identification and standardization of newly trustable. Biomarkers able to predict and follow-up diabetes and to specifically subtype its different forms, few of them have proven of clinical utility...
February 17, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28213598/informing-efficient-randomised-controlled-trials-exploration-of-challenges-in-developing-progression-criteria-for-internal-pilot-studies
#6
Kerry N L Avery, Paula R Williamson, Carrol Gamble, Elaine O'Connell Francischetto, Chris Metcalfe, Peter Davidson, Hywel Williams, Jane M Blazeby
OBJECTIVES: Designing studies with an internal pilot phase may optimise the use of pilot work to inform more efficient randomised controlled trials (RCTs). Careful selection of preagreed decision or 'progression' criteria at the juncture between the internal pilot and main trial phases provides a valuable opportunity to evaluate the likely success of the main trial and optimise its design or, if necessary, to make the decision not to proceed with the main trial. Guidance on the appropriate selection and application of progression criteria is, however, lacking...
February 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28213197/epileptic-seizures-in-patients-following-surgical-treatment-of-acute-subdural-hematoma-incidence-risk-factors-patient-outcome-and-development-of-a-new-scoring-system-for-prophylactic-antiepileptic-treatment-gate-24-score
#7
Sae-Yeon Won, Daniel Dubinski, Eva Herrmann, Colleen Cuca, Adam Strzelczyk, Volker Seifert, Juergen Konczalla, Thomas M Freiman
OBJECT: Clinically evident or subclinical seizures are common manifestation in acute subdural hematoma (aSDH); however, there is a paucity of research investigating the relationship between seizures and aSDH. The purpose of this study is, firstly to determine incidence, predictors of seizures and secondly establish a guideline in patients with aSDH to standardize the decision for prophylactic antiepileptic treatment. METHOD: The author analyzed 139 patients with aSDH treated from 2007 until 2015...
February 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28213168/patients-with-total-knee-arthroplasty-do-not-use-all-of-their-available-range-of-knee-flexion-during-functional-activities
#8
Jodie A McClelland, Julian A Feller, Hylton B Menz, Kate E Webster
BACKGROUND: Recent research designed to improve outcome from total knee arthroplasty has included focus on strategies that increase the range of post-operative knee flexion. Patients with knee arthroplasty can now expect >100° of knee flexion following surgery, but it is not clear whether this improved range of motion facilitates outcome or whether patients take advantage of this range when completing daily functional activities. The aim of this study was to investigate the knee flexion angles used during daily functional activities that specifically required high degrees of knee flexion...
February 7, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28213135/genetic-variants-in-the-peripheral-auditory-system-significantly-affect-adult-cochlear-implant-performance
#9
A Eliot Shearer, Robert W Eppsteiner, Kathy Frees, Viral Tejani, Christina M Sloan-Heggen, Carolyn Brown, Paul Abbas, Camille Dunn, Marlan R Hansen, Bruce J Gantz, Richard J H Smith
BACKGROUND: Cochlear implantation is an effective habilitation modality for adults with significant hearing loss. However, post-implant performance is variable. A portion of this variance in outcome can be attributed to clinical factors. Recent physiological studies suggest that the health of the spiral ganglion also impacts post-operative cochlear implant outcomes. The goal of this study was to determine whether genetic factors affecting spiral ganglion neurons may be associated with cochlear implant performance...
February 14, 2017: Hearing Research
https://www.readbyqxmd.com/read/28213060/prediction-of-cesarean-delivery-in-the-term-nulliparous-woman-results-from-the-prospective-multi-center-genesis-study
#10
Naomi Burke, Gerard Burke, Fionnuala Breathnach, Fionnuala Mcauliffe, John J Morrison, Michael Turner, Samina Dornan, John R Higgins, Amanda Cotter, Michael Geary, Peter Mcparland, Sean Daly, Fiona Cody, Pat Dicker, Elizabeth Tully, Fergal D Malone
BACKGROUND: In contemporary practice many nulliparous women require intervention during childbirth such as operative vaginal delivery or Cesarean delivery (CD). Despite the knowledge that the rising CD rate is associated with increasing maternal age, obesity and larger infant birthweight, we lack a reliable method to predict the requirement for such potentially hazardous obstetric procedures during labor and delivery. This issue is important as there are higher rates of morbidity and mortality associated with unplanned CD performed in labor compared to scheduled Cesarean deliveries...
February 14, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28212963/clinician-reported-outcome-assessments-of-treatment-benefit-report-of-the-ispor-clinical-outcome-assessment-emerging-good-practices-task-force
#11
John H Powers, Donald L Patrick, Marc K Walton, Patrick Marquis, Stefan Cano, Jeremy Hobart, Maria Isaac, Spiros Vamvakas, Ashley Slagle, Elizabeth Molsen, Laurie B Burke
A clinician-reported outcome (ClinRO) assessment is a type of clinical outcome assessment (COA). ClinRO assessments, like all COAs (patient-reported, observer-reported, or performance outcome assessments), are used to 1) measure patients' health status and 2) define end points that can be interpreted as treatment benefits of medical interventions on how patients feel, function, or survive in clinical trials. Like other COAs, ClinRO assessments can be influenced by human choices, judgment, or motivation. A ClinRO assessment is conducted and reported by a trained health care professional and requires specialized professional training to evaluate the patient's health status...
January 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28212907/improving-preoperative-throughput
#12
Jennifer Franklin, Tony Franklin
Preoperative throughput is an important piece in achieving the perioperative goal for first case on time starts. An inefficient preoperative (preop) department can delay surgery starts and impact the patient flow throughout the day. Research is abundant in applying lean six sigma principles in the operating room, however there are minimal studies that specifically apply these tools in the preop. The perioperative process includes the preop, operating room, and the postoperative departments. All areas have to run like a well-oiled machine to improve performance and achieve positive outcomes...
February 2017: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/28212673/weight-compensation-characteristics-of-armeo%C3%A2-spring-exoskeleton-implications-for-clinical-practice-and-research
#13
Bonnie E Perry, Emily K Evans, Dobrivoje S Stokic
BACKGROUND: Armeo®Spring exoskeleton is widely used for upper extremity rehabilitation; however, weight compensation provided by the device appears insufficiently characterized to fully utilize it in clinical and research settings. METHODS: Weight compensation was quantified by measuring static force in the sagittal plane with a load cell attached to the elbow joint of Armeo®Spring. All upper spring settings were examined in 5° increments at the minimum, maximum, and two intermediate upper and lower module length settings, while keeping the lower spring at minimum...
February 17, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28212638/commissioning-for-health-improvement-following-the-2012-health-and-social-care-reforms-in-england-what-has-changed
#14
E W Gadsby, S Peckham, A Coleman, D Bramwell, N Perkins, L M Jenkins
BACKGROUND: The wide-ranging program of reforms brought about by the Health and Social Care Act (2012) in England fundamentally changed the operation of the public health system, moving responsibility for the commissioning and delivery of services from the National Health Service to locally elected councils and a new national public health agency. This paper explores the ways in which the reforms have altered public health commissioning. METHODS: We conducted multi-methods research over 33 months, incorporating national surveys of Directors of Public Health and local council elected members at two time-points, and in-depth case studies in five purposively selected geographical areas...
February 17, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28212258/factors-influencing-difficulty-of-laparoscopic-abdominoperineal-resection-for-ultra-low-rectal-cancer
#15
Qiken Li, Dechuan Li, Lai Jiang, Pengnian Qiu, Zhixuan Fu, Lilong Tang, Weiping Chen
PURPOSE: Our current study was conducted to identify patients' anatomic, pathologic, and clinical factors to predict difficulty of performing laparoscopic abdominoperineal resection for ultra-low rectal cancer. MATERIALS AND METHODS: Records of 117 consecutive patients with rectal cancer 2 to 5 cm from the anal verge were retrospectively reviewed. Using univariate and multivariate linear or logistic regression models, standardized operative time and blood loss, as well as postoperative morbidity were utilized as endpoints to screen patients' multiple variables to predict operative difficulty...
February 16, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28212250/economic-impact-of-nonmodifiable-risk-factors-in-orthopaedic-fracture-care-is-bundled-payment-feasible
#16
Siddharth A Mahure, Lorraine Hutzler, Richard S Yoon, Joseph A Bosco
OBJECTIVES: To determine whether bundled payments are feasible in the orthopaedic fracture setting, and the potential economic implications of this reimbursement structure. DESIGN: Prospective. SETTING: Multicenter. PATIENTS/PARTICIPANTS: Between 2004 and 2014, a total of 23,643 operatively treated patients with fracture and 544,067 patients with total joint arthroplasty (TJA) were identified using the New York State Statewide Planning and Research Cooperative System database...
March 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28211314/procedure-for-horizontal-transfer-of-patient-derived-xenograft-tumors-to-eliminate-corynebacterium-bovis
#17
Christopher A Manuel Stacey M Bagby Julie A Reisinger Umarani Pugazhenthi Todd M Pitts Stephen B Keysar John J Arcaroli And Jori K Leszczynski
Human patient-derived xenograft (PDX) tumors, propagated in immunodeficient mice, are rapidly growing in use as amodelfor cancer research. Horizontal transfer between mice, without in vitro cell culture, allows these tumors to retainmany of their unique characteristics from their individual patient of origin. However, the immunodeficient mouse strainsused to grow these tumors are susceptible to numerous opportunistic pathogens, including Corynebacterium bovis. At ourinstitution, 2 in vivo tumor banks of PDX tumors had been maintained within nude mouse colonies enzootically infectedwith C...
February 16, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28210017/influence-of-prognostic-factors-for-recurrence-of-adenocarcinoma-of-the-stomach
#18
Indira Mehmedagic, Sefik Hasukic, Mirha Agic, Nedzad Kadric, Ismar Hasukic
INTRODUCTION: Gastric cancer is the second most important neoplasm in the world. Surgical resection is the treatment of choice for gastric cancer, and recognized by the International Union against Cancer (International Union Against Cancer - UICC) TNM classification of the parameters of the tumor and lymph node. Prognostic factors related to characteristics of the tumor by histopathologic findings have an impact on the planning of the operation. According to the results of most studies it is possible to predict survival and recurrence based on histological type and TNM classification of tumors on the one hand and the surgical procedure on the other...
December 2016: Medical Archives
https://www.readbyqxmd.com/read/28208836/synthesis-of-graphene-based-sensors-and-application-on-detecting-sf6-decomposing-products-a-review
#19
Xiaoxing Zhang, Hao Cui, Yingang Gui
Graphene-based materials have aroused enormous focus on a wide range of engineering fields because of their unique structure. One of the most promising applications is gas adsorption and sensing. In electrical engineering, graphene-based sensors are also employed as detecting devices to estimate the operation status of gas insulated switchgear (GIS). This paper reviews the main synthesis methods of graphene, gas adsorption, and sensing mechanism of its based sensors, as well as their applications in detecting SF6 decomposing products, such as SO2, H2S, SO2F2, and SOF2, in GIS...
February 13, 2017: Sensors
https://www.readbyqxmd.com/read/28208777/development-and-experimental-validation-of-a-dry-non-invasive-multi-channel-mouse-scalp-eeg-sensor-through-visual-evoked-potential-recordings
#20
Donghyeon Kim, Chanmi Yeon, Kiseon Kim
In this paper, we introduce a dry non-invasive multi-channel sensor for measuring brainwaves on the scalps of mice. The research on laboratory animals provide insights to various practical applications involving human beings and other animals such as working animals, pets, and livestock. An experimental framework targeting the laboratory animals has the potential to lead to successful translational research when it closely resembles the environment of real applications. To serve scalp electroencephalography (EEG) research environments for the laboratory mice, the dry non-invasive scalp EEG sensor with sixteen electrodes is proposed to measure brainwaves over the entire brain area without any surgical procedures...
February 9, 2017: Sensors
keyword
keyword
47444
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"