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Jonathan T Finnoff, Jeremiah Ray, Gianmichael Corrado, Deanna Kerkhof, John Hill
BACKGROUND: Traditionally, ultrasound has been used to evaluate musculoskeletal injuries in athletes; however, ultrasound applications extend well beyond musculoskeletal conditions, many of which are pertinent to athletes. EVIDENCE ACQUISITION: Articles were identified in PubMed using the search terms ultrasound, echocardiogram, preparticipation physical examination, glycogen, focused assessment with sonography of trauma, optic nerve, and vocal cord dysfunction...
September 2016: Sports Health
Artur Radomyski, Elisa Giubilato, Philippe Ciffroy, Andrea Critto, Céline Brochot, Antonio Marcomini
The study is focused on applying uncertainty and sensitivity analysis to support the application and evaluation of large exposure models where a significant number of parameters and complex exposure scenarios might be involved. The recently developed MERLIN-Expo exposure modelling tool was applied to probabilistically assess the ecological and human exposure to PCB 126 and 2,3,7,8-TCDD in the Venice lagoon (Italy). The 'Phytoplankton', 'Aquatic Invertebrate', 'Fish', 'Human intake' and PBPK models available in MERLIN-Expo library were integrated to create a specific food web to dynamically simulate bioaccumulation in various aquatic species and in the human body over individual lifetimes from 1932 until 1998...
November 1, 2016: Science of the Total Environment
Sophie Rym Hamada, Nathalie Delhaye, Sebastien Kerever, Anatole Harrois, Jacques Duranteau
BACKGROUND: The initial management of a trauma patient is a critical and demanding period. The use of extended focused assessment sonography for trauma (eFAST) has become more prevalent in trauma rooms, raising questions about the real "added value" of chest X-rays (CXRs) and pelvic X-rays (PXR), particularly in haemodynamically stable trauma patients. The aim of this study was to evaluate the effectiveness of a management protocol integrating eFAST and excluding X-rays in stable trauma patients...
December 2016: Annals of Intensive Care
Li-hong He, Hai-yan Wang, Xiang-dong Lei
Model based on vegetation ecophysiological process contains many parameters, and reasonable parameter values will greatly improve simulation ability. Sensitivity analysis, as an important method to screen out the sensitive parameters, can comprehensively analyze how model parameters affect the simulation results. In this paper, we conducted parameter sensitivity analysis of BIOME-BGC model with a case study of simulating net primary productivity (NPP) of Larix olgensis forest in Wangqing, Jilin Province. First, with the contrastive analysis between field measurement data and the simulation results, we tested the BIOME-BGC model' s capability of simulating the NPP of L...
February 2016: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Resa E Lewiss, Jessica Cook, Allison Sauler, Nicholas Avitabile, Nicole L Kaban, Jeffrey Rabrich, Turandot Saul, Sebastian D Siadecki, Dan Wiener
BACKGROUND: Emergency point-of-care ultrasound (POC u/s) is an example of a health information technology that improves patient care and time to correct diagnosis. POC u/s examinations should be documented, as they comprise an integral component of physician decision making. Incomplete documentation prevents coding, billing and physician group compensation for ultrasound-guided procedures and patient care. We aimed to assess the effect of directed education and personal feedback through a task force driven initiative to increase the number of POC u/s examinations documented and transferred to medical coders by emergency medicine physicians...
December 2016: Critical Ultrasound Journal
Christopher Hylkema
Ultrasound has been used for almost 30 years in a wide variety of clinical applications and environments. From the austerity of battlefields to the labor and delivery ward, ultrasound has the ability to give clinicians real-time, noninvasive diagnostic imaging. Ultrasound by emergency physicians (and all nonradiologists) has become more prevalent and has been used for examinations such as the transcranial Doppler to evaluate for stroke, cardiac function, FAST and EFAST examinations for trauma, and now increased intracranial pressure (ICP) via Optic Nerve Sheath Diameter Ultrasound (ONSD)...
March 2016: Critical Care Nursing Clinics of North America
Gabriele Pedruzzi, Phonindra Nath Das, Kanury Vs Rao, Samrat Chatterjee
Infection of humans with Mycobacterium tuberculosis (Mtb) results in diverse outcomes that range from acute disease to establishment of persistence and to even clearance of the pathogen. These different outcomes represent the combined result of host heterogeneity on the one hand, and virulence properties of the infecting strain of pathogen on the other. From the standpoint of the host, the balance between PGE2, LXA4 and LTB4 represents at least one of the factors that dictates the eventual pathophysiology. We therefore built an ODE model to describe the host-pathogen interaction and studied the local stability properties of the system, to obtain the parametric conditions that lead to different disease outcomes...
January 21, 2016: Journal of Theoretical Biology
Huaiwei Sun, Yan Zhu, Jinzhong Yang, Xiugui Wang
As the amount of water resources that can be utilized for agricultural production is limited, the reuse of treated wastewater (TWW) for irrigation is a practical solution to alleviate the water crisis in China. The process-based models, which estimate nitrogen dynamics under irrigation, are widely used to investigate the best irrigation and fertilization management practices in developed and developing countries. However, for modeling such a complex system for wastewater reuse, it is critical to conduct a sensitivity analysis to determine numerous input parameters and their interactions that contribute most to the variance of the model output for the development of process-based model...
November 2015: Environmental Science and Pollution Research International
Uri Adrian Prync Flato, Hélio Penna Guimarães, Renato Delascio Lopes, Jorge Luís Valiatti, Elias Marcos Silva Flato, Ricardo Gonçalves Lorenzo
Trauma is the leading cause of death in people below 45 years-old in Brazil, and responsible for one third of all intensive care unit admissions. The increasing knowledge on ultrasound diagnosis methods and its availability for life-threatening injuries (such as cardiac tamponade and abdominal cavity solid organs rupture leading to hemorrhagic shock) diagnosis and monitoring, lead to the development o the FAST (Focused Assessment with Sonography for Trauma) protocol, aimed to be used both in the emergency and intensive care unit settings...
September 2010: Revista Brasileira de Terapia Intensiva
Gregory M Press, Sara K Miller, Iman A Hassan, Kiyetta H Alade, Elizabeth Camp, Deborah Del Junco, John B Holcomb
BACKGROUND: Ultrasound is widely considered the initial diagnostic imaging modality for trauma. Preliminary studies have explored the use of trauma ultrasound in the prehospital setting, but the accuracy and potential utility is not well understood. OBJECTIVE: We sought to determine the accuracy of trauma ultrasound performed by helicopter emergency medical service (HEMS) providers. METHODS: Trauma ultrasound was performed in flight on adult patients during a 7-month period...
December 2014: Journal of Emergency Medicine
Yassir Abdulrahman, Shameel Musthafa, Suhail Y Hakim, Syed Nabir, Ahad Qanbar, Ismail Mahmood, Tariq Siddiqui, Wafaa A Hussein, Hazim H Ali, Ibrahim Afifi, Ayman El-Menyar, Hassan Al-Thani
INTRODUCTION: The clinical significance of extended Focused Assessment with Sonography for Trauma (EFAST) for diagnosis of pneumothorax is not well defined. OBJECTIVES: To investigate the utility of EFAST in blunt chest trauma (BCT) patients. STUDY DESIGN: A single blinded, prospective study. PARTICIPANTS: All patients admitted with BCT (2011-2013). SETTINGS: Level 1 trauma center in Qatar. PROCEDURES AND OUTCOME MEASURES: Patients were screened by EFAST and results were compared to the clinical examination (CE) and chest X-ray (CXR)...
January 2015: World Journal of Surgery
H Prosch, L Negrin
CLINICAL/METHODOLOGICAL ISSUE: Blunt chest trauma is associated with high morbidity and mortality. Consequently, all patients should be evaluated radiologically after blunt chest trauma to allow timely and appropriate treatment. STANDARD RADIOLOGICAL METHODS: Conventional chest radiographs and computed tomography (CT) are proven modalities with which to evaluate patients after blunt chest trauma. METHODOLOGICAL INNOVATIONS: Over the last several years extended focused assessment with sonography for trauma (eFAST) has gained increasing importance for the initial assessment of seriously injured patients...
September 2014: Der Radiologe
Charles Edward Tunuka, Robert Wangoda, Sam Bugeza, Moses Galukande
Introduction. Clinical evaluation of patients with torso trauma is often a diagnostic challenge. Extended focused assessment with sonography for trauma (EFAST) is an emergency ultrasound scan that adds to the evaluation of intrathoracic abdominal and pericardial cavities done in FAST (focused assessment with sonography for trauma). Objective. This study compares EFAST (the index test) with the routine standard of care (SoC) investigations (the standard reference test) for torso trauma injuries. Methods. A cross-sectional descriptive study was conducted over a 3-month period...
2014: Emergency Medicine International
Vincent Loizeau, Philippe Ciffroy, Yelva Roustan, Luc Musson-Genon
Semi-volatile organic compounds (SVOCs) are subject to Long-Range Atmospheric Transport because of transport-deposition-reemission successive processes. Several experimental data available in the literature suggest that soil is a non-negligible contributor of SVOCs to atmosphere. Then coupling soil and atmosphere in integrated coupled models and simulating reemission processes can be essential for estimating atmospheric concentration of several pollutants. However, the sources of uncertainty and variability are multiple (soil properties, meteorological conditions, chemical-specific parameters) and can significantly influence the determination of reemissions...
September 15, 2014: Science of the Total Environment
Brian Tollefson
No abstract text is available yet for this article.
March 2014: Journal of the Mississippi State Medical Association
Chioma Agbo, Dorothea Hempel, Maria Studer, Kavita Gulati, Isabel Oliva, Katja Goldflam, Stephen Ledbetter, Elke Platz
BACKGROUND: Pneumothorax (PTX) can be readily detected by computed tomography (CT) or ultrasound. However, management of PTX in hemodynamically stable patients remains controversial. STUDY OBJECTIVES: We sought to investigate whether a distinct anatomical distribution of PTX along prespecified chest zones as detected by CT can be described in patients with or without subsequent chest tube thoracotomy (CTT), thus potentially allowing the extended focused assessment with sonography for trauma (EFAST) ultrasound examination to guide PTX management...
May 2014: Journal of Emergency Medicine
Tatiana Baumuratova, Simona Dobre, Thierry Bastogne, Thomas Sauter
Systems with bifurcations may experience abrupt irreversible and often unwanted shifts in their performance, called critical transitions. For many systems like climate, economy, ecosystems it is highly desirable to identify indicators serving as early warnings of such regime shifts. Several statistical measures were recently proposed as early warnings of critical transitions including increased variance, autocorrelation and skewness of experimental or model-generated data. The lack of automatized tool for model-based prediction of critical transitions led to designing DyGloSA - a MATLAB toolbox for dynamical global parameter sensitivity analysis (GPSA) of ordinary differential equations models...
2013: PloS One
Pierre-Marie Brun, Jacques Bessereau, Hichem Chenaitia, Anne-Lise Pradel, Cecile Deniel, Gilles Garbaye, Regis Melaine, Olivier Bylicki, Christophe Lablanche
UNLABELLED: The concept that ultrasonography could be interesting in the prehospital setting and during the transfer of traumatized patients is not new. Paradoxically, there is a lack of description of routine use of ultrasonography in emergency ambulances. The aim of this study was to compare the feasibility and efficiency of an extended focused assessment sonography for trauma (eFAST) examination performed on-site, during the patient's transfer, or both. MATERIALS AND METHODS: From February 2010 to June 2012, 30 prehospital emergency physicians were divided randomly into 3 groups...
February 2014: American Journal of Emergency Medicine
Paul McBeth, Innes Crawford, Corina Tiruta, Zhengwen Xiao, George Qiaohao Zhu, Michael Shuster, Les Sewell, Nova Panebianco, David Lautner, Savvas Nicolaou, Chad G Ball, Michael Blaivas, Christopher J Dente, Amy D Wyrzykowski, Andrew W Kirkpatrick
BACKGROUND: Ultrasound (US) examination has many uses in resuscitation, but to use it to its full effectiveness typically requires a trained and proficient user. We sought to use information technology advances to remotely guide US-naive examiners (UNEs) using a portable battery-powered tele-US system mentored using either a smartphone or laptop computer. MATERIALS AND METHODS: A cohort of UNEs (5 tactical emergency medicine technicians, 10 ski-patrollers, and 4 nurses) was guided to perform partial or complete Extended Focused Assessment with Sonography of Trauma (EFAST) examinations on both a healthy volunteer and on a US phantom, while being mentored by a remote examiner who viewed the US images over either an iPhone(®) (Apple, Cupertino, CA) or a laptop computer with an inlaid depiction of the US probe and the "patient," derived from a videocamera mounted on the UNE's head...
December 2013: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
Gregory M Press, Sara K Miller, Iman A Hassan, Robert Blankenship, Deborah del Junco, Elizabeth Camp, John B Holcomb
BACKGROUND: In the United States, ultrasound has rarely been incorporated into prehospital care, and scant descriptions of the processes used to train prehospital providers are available. OBJECTIVES: Our objective was to evaluate the effectiveness of an extended focused assessment with sonography for trauma (EFAST) training curriculum that incorporated multiple educational modalities. We also aimed to determine if certain demographic factors predicted successful completion...
December 2013: Journal of Emergency Medicine
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