Read by QxMD icon Read

Operational research

Lauren E Giugale, Sara Sakamoto, Jonathan Yabes, Shannon L Dunn, Elizabeth E Krans
We conducted an observational retrospective cohort study to evaluate the risk factors and the maternal morbidity associated with unintended extensions of the hysterotomy during caesarean delivery. We evaluated 2707 women who underwent low-transverse caesarean deliveries in 2011 at an academic, tertiary-care hospital. Hysterotomy extensions were identified through operative reports. Of the 2707 caesarean deliveries, 392 (14.5%) had an unintended hysterotomy extension. On the multivariable regression modelling, neonatal weight (OR 1...
March 22, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Abdullah Boztosun, Remzi Atılgan, Şehmus Pala, Şafak Olgan
The aim of this study is to define a new method of manipulating the uterus during laparoscopic hysterectomy. A total laparoscopic hysterectomy (TLH) with the newly defined technique was performed in 29 patients between July 2016 and July 2017. In this new technique, the uterus was bound from uterine corpus and fundus like a bridle with polyester tape, to allow abdominal manipulation. The technique was successfully performed at the first attempt in 93.1% of cases. It was repeated in two cases (6.9%) since the polyester tape departed away from the uterus at the first attempt...
March 22, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Montserrat Nunez, Ralph K Rosenbaum, Shooka Karimpour, Anne-Marie Boulay, Michael J Lathuillière, Manuele Margni, Laura Scherer, Francesca Verones, Stephan Pfister
Many new damage oriented methods have recently been developed to address environmental consequences of water consumption in life cycle assessment (LCA). However, such methods can only partially be compared and combined, since their modelling structure and metrics are inconsistent. Moreover, they focus on specific water sources (e.g. river) and miss description of transport flows between water compartments (e.g. from river to atmosphere via evaporation) and regions (e.g. atmospheric advection). Consequently, they provide a partial regard of the local and global hydrological cycle and derived impacts on the environment...
March 22, 2018: Environmental Science & Technology
Jeffrey Lambe, Olwen C Murphy, Shiv Saidha
PURPOSE OF REVIEW: With the recognition that neurodegeneration represents the principal substrate of disability in multiple sclerosis (MS), there has been increased strives towards identifying biomarkers for accurately quantifying and tracking neurodegeneration during the disease course. The retina provides an opportune "window" into the central nervous system (CNS) in MS, with retinal changes in MS reflecting not only local, but also global aspects of neurodegeneration and inflammation operative in the disease...
March 21, 2018: Current Treatment Options in Neurology
Cheng-Xin Luo, Zhong-Hui Wen, Yu Zhen, Zhu-Jun Wang, Jing-Xi Mu, Min Zhu, Qin Ouyang, Hu Zhang
AIM: To investigate the current state of research output from Chinese studies into severe ulcerative colitis (SUC) using a bibliometric analysis of publications. METHODS: The contents of the Chinese periodical databases WANFANG, VIP, and China National Knowledge Infrastructure were searched for all papers regarding UC or SUC published in last the 15 years (from 2001 to 2015). The number of publications in each year was recorded to assess the temporal trends of research output...
March 16, 2018: World Journal of Clinical Cases
Andrew R Summers, Travis Philipp, Jacob D Mikula, Kenneth R Gundle
Metastatic bone disease affects approximately 300,000 people in the United States, and the burden is rising. These patients experience significant morbidity and decreased survival. The management of these patients requires coordinated care among a multidisciplinary team of physicians, including orthopaedic surgeons. This article reviews the role of radiation therapy after orthopaedic stabilization of impending or realized pathologic extremity fractures. Orthopaedic surgeons have an opportunity to benefit patients with metastatic bone disease by referring them for consideration of post-operative radiation therapy...
December 14, 2017: Orthopedic Reviews
Yari Gvion, Yossi Levi-Belz
Background: One of the main obstacles in studying suicide risk factors is the difference between cases in which the individual died by suicide and those in which the individual engaged in suicidal behavior. A promising strategy that overcomes this obstacle is the study of survivors of serious suicide attempt (SSA), i.e., an attempt that would have been lethal had it not been for the provision of rapid and effective emergency treatment. Serious suicide attempters are epidemiologically very much like those who died by suicide, and thus may serve as valid proxies for studying suicides...
2018: Frontiers in Psychiatry
Jasmina Obhođaš, Davorin Sudac, Ilker Meric, Helge E S Pettersen, Milivoj Uroić, Karlo Nađ, Vlado Valković
The prospecting activities for finding new rare earth elements (REE) sources have increased greatly in recent years. One of the main discoveries was announced in 2011 by Japanese researchers who found large quantities of REE on the ocean seafloor at the sea depths greater than 4,000 m. The classic approach to investigate REE in deep sea sediments is to obtain sediment samples by drilling that is followed by laborious laboratory analysis. This is very expensive, time consuming and not appropriate for exploring vast areas...
March 21, 2018: Scientific Reports
Huang-Kai Kao, Charles Yuen Yung Loh, Hao-Wei Kou, Kuo-Chin Kao, Han-Chung Hu, Chia-Ming Chang, Chia-Hui Lee, Hsiang-Hao Hsu
BACKGROUND: Majority of current research focuses on pre-hospital care in mass casualty incidents (MCI) whereas this study is the first to examine multifactorial aspects of intensive care unit (ICU) resource management during a surge in massive burn injury (MBI) patients whilst identifying key outcome predictors that resulted in successful disaster managements. METHODS: Both critical care, surgical parameters and cost-effectiveness are investigated in patients admitted with severe burns resulting from the explosion...
March 18, 2018: Burns: Journal of the International Society for Burn Injuries
Fan Dong, Yifan Shen, Tianyuan Xu, Xianjin Wang, Fengbin Gao, Shan Zhong, Shanwen Chen, Zhoujun Shen
BACKGROUND: Previous researches pointed out that the measurement of urine fibronectin (Fn) could be a potential diagnostic test for bladder cancer (BCa). We conducted this meta-analysis to fully assess the diagnostic value of urine Fn for BCa detection. METHODS: A systematic literature search in PubMed, ISI Web of Science, EMBASE, Cochrane library, and CBM was carried out to identify eligible studies evaluating the urine Fn in diagnosing BCa. Pooled sensitivity, specificity, and diagnostic odds ratio (DOR) with their 95% confidence intervals (CIs) were calculated, and summary receiver operating characteristic (SROC) curves were established...
March 21, 2018: World Journal of Surgical Oncology
Omorogieva Ojo, Osarhumwese Osaretin Ojo, Fajemisin Adebowale, Xiao-Hua Wang
BACKGROUND: The increasing prevalence of diabetes in the United Kingdom and worldwide calls for new approaches to its management, and diets with low glycaemic index have been proposed as a useful means for managing glucose response. However, there are conflicting reports and differences in the results of studies in terms of their effectiveness. Furthermore, the impact of low-glycaemic index diets and their long-term use in patients with type 2 diabetes remains unclear. OBJECTIVES: The objective of this study was to conduct a systematic review and meta-analysis of the effect of low-glycaemic index diets in patients with type 2 diabetes...
March 19, 2018: Nutrients
V Priya, B N Srikumar, B S Shankaranarayana Rao
Performing multiple tasks either simultaneously, in rapid alternation or in succession, is routine in daily life. Further, testing rodents in a battery of tests is common both in drug discovery and behavioral phenotyping research. However, learning of new tasks can be influenced by prior experience(s). There has been some research on 'switching cost' involved in the transition from one behavior to another. However, there has been no specific assessment of the effect of learning an operant paradigm on performance in a spatial memory task and vice versa...
March 12, 2018: Journal of Integrative Neuroscience
Francesco Panza, Madia Lozupone, Vincenzo Solfrizzi, Rodolfo Sardone, Vittorio Dibello, Luca Di Lena, Francesca D'Urso, Roberta Stallone, Massimo Petruzzi, Gianluigi Giannelli, Nicola Quaranta, Antonello Bellomo, Antonio Greco, Antonio Daniele, Davide Seripa, Giancarlo Logroscino
Frailty, a critical intermediate status of the aging process that is at increased risk for negative health-related events, includes physical, cognitive, and psychosocial domains or phenotypes. Cognitive frailty is a condition recently defined by operationalized criteria describing coexisting physical frailty and mild cognitive impairment (MCI), with two proposed subtypes: potentially reversible cognitive frailty (physical frailty/MCI) and reversible cognitive frailty (physical frailty/pre-MCI subjective cognitive decline)...
2018: Journal of Alzheimer's Disease: JAD
X F Guo, Z G Li
Robotic assisted surgery system is the most advanced minimally invasive surgical platform in the world, and this system has been widely used in cardiac surgery, urology surgery, gynecology surgery and general surgery. Although the application of this system was relative late in esophageal surgery, it has been developing vigorously. According to the research progress and practical experience in the world, robot assisted minimally invasive esophagectomy (RAMIE) has the same safety and effectiveness as traditional open esophagectomy (OE) and thoracoscopic laparoscopic esophagectomy (TLE)...
April 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Angel Rodriguez-Laso, Sara J McLaughlin, Elena Urdaneta, Javier Yanguas
Purpose of the Study: Using an operational continuum of healthy aging developed by U.S. researchers, we sought to estimate the prevalence of healthy aging among older Spaniards, inform the development of a definition of healthy aging in Spain, and foster cross-national research on healthy aging. Design and Methods: The ELES pilot study is a nationwide, cross-sectional survey of community-dwelling Spaniards 50 years and older. The prevalence of healthy aging was calculated for the 65 and over population using varying definitions...
March 19, 2018: Gerontologist
Wenxi Qian, Weiping Ao, Xiaohong Hui, Jianping Wu
The ruminal microbiota plays major roles in feed digestion. The composition and fermentation of the bacterial communities in three important ruminant species have been studied previously. Here, we extended this research to the effect of concentrate-to-forage ratios on ruminal bacterial communities in Tarim red deer (Cervus elaphus yarkandensis). Different concentrate-to-forage ratios [2:8, 3:7, 4:6 and 5:5] were fed to Tarim red deer for 20 days. Ruminal bacterial communities were elucidated by 16S ribosomal RNA gene sequencing on an Illumina HiSeq 2500 platform...
March 21, 2018: Canadian Journal of Microbiology
Elizabeth Bevan, Scott Whiting, Tony Tucker, Michael Guinea, Andrew Raith, Ryan Douglas
Drones are being increasingly used in innovative ways to enhance environmental research and conservation. Despite their widespread use for wildlife studies, there are few scientifically justified guidelines that provide minimum distances at which wildlife can be approached to minimize visual and auditory disturbance. These distances are essential to ensure that behavioral and survey data have no observer bias and form the basis of requirements for animal ethics and scientific permit approvals. In the present study, we documented the behaviors of three species of sea turtle (green turtles, Chelonia mydas, flatback turtles, Natator depressus, hawksbill turtles, Eretmochelys imbricata), saltwater crocodiles (Crocodylus porosus), and crested terns (Thalasseus bergii) in response to a small commercially available (1...
2018: PloS One
Tomáš Glomb, Adam Mertel, Zdeněk Pospíšil, Zdeněk Stachoň, Aleš Chalupa
Early in the Ptolemaic era, Egyptian cults, particularly those of Isis and Sarapis, spread successfully to ports across the ancient Aegean Sea. Leading researchers in the field claim that the spread of these cults was influenced by multiple factors, ones that were mainly economic or political in character. However, the question of which factors had more weight or impact than others in the process of the early spread of Egyptian cults has not yet been answered in academic discussion. This could be related to the fact that the issue of the spread of religious innovations in the ancient Mediterranean has been addressed mainly by established historiographical methods such as the collection and critical analysis of archaeological and literary sources...
2018: PloS One
Nico E Knibbe, Elien Zwaenepoel, Hanneke Jj Knibbe, Dimitri Beeckman
The Danish automated Vendlet V5s repositioning system is intended to reduce pressure ulcer risk in patients and work-related musculoskeletal disorders (MSDs) in caregivers. In two Belgian nursing homes, 13 residents with mobility levels C, D and E experienced the repositioning system, operated by 35 caregivers, for 4 weeks. Data about skin condition, nursing time needed for repositioning and MSD symptoms were collected. The use of the repositioning system was not associated with the development of nor a reduction in skin problems; the study included residents who were vulnerable to or already had pressure ulcers...
March 22, 2018: British Journal of Nursing: BJN
Xiao-Jiang Yang, Rui-Jun Tian, Xing Su, Shan-Bo Hu, Wei Lei, Yang Zhang
BACKGROUND: Amounts of clinic research have been performed to investigate the increment of cross-sectional area in single-door cervical laminoplasty (SDCL). However, no one has taken the effects of surgery drill into consideration. METHODS: A mathematical model was built to investigate the relation of actual laminoplasty opening size (LOS), the transverse canal diameter (TCD), and the increment of cross-sectional area in SDCL). The model was based on geometric analysis on deformation of spinal canal; the relation was derived and characterized as: (Equation is included in full-text article...
March 2018: Medicine (Baltimore)
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"