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https://www.readbyqxmd.com/read/29316347/effect-of-heated-air-blanket-on-the-dispersion-of-squames-in-an-operating-room
#1
X He, S Karra, P Pakseresht, S V Apte, S Elghobashi
High-fidelity, predictive fluid flow simulations of the interactions between the rising thermal plumes from forced air warming blower and the ultraclean ventilation air in an operating (OR) are conducted to explore whether this complex flow can impact the dispersion of squames to the surgical site. A large-eddy simulation (LES), accurately capturing the spatio-temporal evolution of the flow in three-dimensions together with the trajectories of squames, is performed for a realistic OR consisting of an operating table (OT), side tables, surgical lamps, medical staff, and a patient...
January 9, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29280206/utilization-of-peroxide-reduction-reaction-at-air-liquid-solid-joint-interfaces-for-reliable-sensing-system-construction
#2
Zhiqian Song, Chenlong Xu, Xia Sheng, Xinjian Feng, Lei Jiang
The utilization of hydrogen peroxide (H2 O2 ) cathodic reaction is an ideal approach to develop reliable biosensors that are immune to interferences arising from oxidizable endogenous/exogenous species in biological solutions. However, practical application of such a detection scheme is limited due to the significantly fluctuating oxygen levels in solutions, as oxygen can be reduced at similar potentials. Herein, this limitation is addressed by developing a novel electrode system with superhydrophobicity-mediated air-liquid-solid joint interfaces, which allows the rapid and continuous transport of oxygen from the air phase to the electrode surface and provides a fixed interfacial oxygen concentration...
December 27, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29258783/air-versus-ground-transportation-in-isolated-severe-head-trauma-a-national-trauma-data-bank-study
#3
Alberto Aiolfi, Elizabeth Benjamin, Gustavo Recinos, Alejandro De Leon Castro, Kenji Inaba, Demetrios Demetriades
BACKGROUND: The effect of prehospital helicopter emergency medical services (HEMS) on mortality has been analyzed previously in polytrauma patients with discordant results. OBJECTIVE: Our aim was to compare outcomes in patients with isolated severe blunt traumatic brain injuries (TBIs) transported by HEMS or ground emergency medical services (GEMS). METHODS: We conducted a National Trauma Data Bank study (2007-2014). All adult patients (≥16 years old) who sustained an isolated severe blunt TBI and were transported by HEMS or GEMS were included in the study...
December 16, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29249477/levels-of-ambient-air-pollution-according-to-mode-of-transport-a-systematic-review
#4
Magda Cepeda, Josje Schoufour, Rosanne Freak-Poli, Chantal M Koolhaas, Klodian Dhana, Wichor M Bramer, Oscar H Franco
BACKGROUND: Controversy exists about the differences in air pollution exposure and inhalation dose between mode of transport. We aimed to review air pollution exposure and inhaled dose according to mode of transport and pollutant and their effect in terms of years of life expectancy (YLE). METHODS: In this systematic review, we searched ten online databases from inception to April 13, 2016, without language or temporal restrictions, for cohort, cross-sectional, and experimental studies that compared exposure to carbon monoxide, black carbon, nitrogen dioxide, and fine and coarse particles in active commuters (pedestrian or cyclist) and commuters using motorised transport (car, motorcycle, bus, or massive motorised transport [MMT-ie, train, subway, or metro])...
January 2017: Lancet. Public Health
https://www.readbyqxmd.com/read/29225959/effect-of-removing-the-barrier-of-transportation-costs-on-surgical-utilisation-in-guinea-madagascar-and-the-republic-of-congo
#5
Mark G Shrime, Mirjam Hamer, Swagoto Mukhopadhyay, Lauren M Kunz, Nathan H Claus, Kirsten Randall, Joannita H Jean-Baptiste, Pierre H Maevatombo, Melissa P S Toh, Jasmin R Biddell, Ria Bos, Michelle White
Background: 81 million people face impoverishment from surgical costs every year. The majority of this impoverishment is attributable to the non-medical costs of care-for transportation, for food and for lodging. Of these, transportation is the largest, but because it is not viewed as an actual medical cost, it is frequently unaddressed. This paper examines the effect on surgical utilisation of paying for transportation. Methods: A hierarchical logistic regression was performed on 2692 patients presenting for surgical care to a non-governmental organisation operating in the Republic of the Congo, Guinea and Madagascar...
2017: BMJ Global Health
https://www.readbyqxmd.com/read/29220727/the-health-impacts-of-weekday-traffic-a-health-risk-assessment-of-pm2-5-emissions-during-congested-periods
#6
Weeberb J Requia, Christopher D Higgins, Matthew D Adams, Moataz Mohamed, Petros Koutrakis
Little work has accounted for congestion, using data that reflects driving patterns, traffic volume, and speed, to examine the association between traffic emissions and human health. In this study, we performed a health risk assessment of PM2.5 emissions during congestion periods in the Greater Toronto and Hamilton Area (GTHA), Canada. Specifically, we used a micro-level approach that combines the Stochastic User Equilibrium Traffic Assignment Algorithm with a MOVES emission model to estimate emissions considering congestion conditions...
December 5, 2017: Environment International
https://www.readbyqxmd.com/read/29162651/transoceanic-management-and-treatment-of-aneurysmal-subarachnoid-hemorrhage-a-10-year-experience
#7
Mehdi Mejdoubi, Mathieu Schertz, Sylvia Zanolla, Hossein Mehdaoui, Michel Piotin
BACKGROUND AND PURPOSE: Because of the small number of yearly cases of ruptured cerebral aneurysms, endovascular treatment is not performed in Martinique. Therefore, patients from Martinique are sent 7000 km to Paris on commercial flights as soon as possible, where treatment is performed. Nontransportable patients are treated locally with either surgery or symptomatic care. The objective of our study was to assess patient outcomes and safety of this treatment strategy. METHODS: We retrospectively examined all cases of aneurysmal subarachnoid hemorrhage in Martinique diagnosed during 2004 to 2013...
November 21, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29132594/ketamine-sedation-for-patients-with-acute-behavioral-disturbance-during-aeromedical-retrieval-a-retrospective-chart-review
#8
Vinay Gangathimmaiah, Minh Le Cong, Mike Wilson, Kate Hooper, Andrew Perry, Luke Burman, Nathan Puckeridge, Brian J Maguire
OBJECTIVE: The aim of this study was to determine the prevalence, safety (as measured by the incidence of adverse events), and effectiveness (as measured by the incidence of intubations) of ketamine sedation in patients with acute behavioral disturbance (ABD) during air medical retrieval. METHODS: This was a retrospective observational study. Eligible patients were identified by searching the electronic databases of 2 air medical retrieval services in Queensland, Australia, for adult patients with ABD transported between January 1, 2015, and June 30, 2016...
November 2017: Air Medical Journal
https://www.readbyqxmd.com/read/29132593/the-impact-of-helicopter-emergency-medical-service-night-operations-in-south-east-england
#9
Leigh Curtis, Mark Salmon, Richard M Lyon
OBJECTIVE: This study sought to assess the impact of a helicopter emergency medical service (HEMS) capable of night operations. METHODS: This is a retrospective case review of all night HEMS missions attended by a charity air ambulance service in South East England over a 2-year period (October 1, 2013, to October 1, 2015). RESULTS: During the 2-year trial period, the HEMS service undertook a total of 5,004 missions and attended to 3,728 patients...
November 2017: Air Medical Journal
https://www.readbyqxmd.com/read/29124846/prevalence-mechanisms-and-genetic-relatedness-of-the-human-pathogenic-fungus-aspergillus-fumigatus-exhibiting-resistance-to-medical-azoles-in-the-environment-of-taiwan
#10
Hsuan-Chen Wang, Jui-Chang Huang, Yong-Hong Lin, Yu-Hsin Chen, Ming-I Hsieh, Pui-Ching Choi, Hsiu-Jung Lo, Wei-Lun Liu, Ching-Shan Hsu, Hsin-I Shih, Chi-Jung Wu, Yee-Chun Chen
Emerging azole resistance in Aspergillus fumigatus poses a serious threat to human health. This nationwide surveillance study investigated the prevalence and molecular characteristics of azole-resistant A. fumigatus environmental isolates in Taiwan, an island country with increasing use of azole fungicides. Of the 2,760 air and soil samples screened from 2014-2016, 451 A. fumigatus isolates were recovered from 266 samples, and 34 isolates from 29 samples displayed resistance to medical azoles (itraconazole, voriconazole, or posaconazole)...
November 10, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/29112540/aeromedical-transport-in-children-a-descriptive-analysis-of-96-cases
#11
Guillaume Mortamet, Karen Harrington, Hervé Raffin, Mehdi Oualha, Sylvain Renolleau
OBJECTIVE: Pediatric aeromedical transport (AT) is highly challenging. We aim to describe a series of 96 cases of children requiring medical transport in terms of the indication, modalities, and related adverse events. METHODS: In this single-center retrospective study, we included air-transported patients less than 18 years old. RESULTS: During the study period, 96 patients, with median age of 120 months (range, 0-204), were air transported...
November 6, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29095286/clinical-predictors-of-outcomes-in-patients-undergoing-emergency-air-medical-transport-from-kinmen-to-taiwan
#12
Julia Chia-Yu Chang, Hsien-Hao Huang, Shu-Hua Chang, Yin-Ru Chen, Ju-Shin Fan, Yen-Chia Chen, David Hung-Tsang Yen
Emergency air medical transport (EAMT) is indispensable for acutely or critically ill patients in remote areas. We determined patient-level and transport-specific factors associated with all-cause mortality after EAMT.We conducted a population-based, retrospective cohort study using a prospective registry consisting of clinical/medical records. Study inclusion criteria consisted of all adults undergoing EAMT from Kinmen hospital to the ED of Taipei Veterans General Hospital (TVGH) between January 1, 2006 and December 31, 2012...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29094162/comparing-the-air-medical-prehospital-triage-score-with-current-practice-for-triage-of-injured-patients-to-helicopter-emergency-medical-services-a-cost-effectiveness-analysis
#13
Joshua B Brown, Kenneth J Smith, Mark L Gestring, Matthew R Rosengart, Timothy R Billiar, Andrew B Peitzman, Jason L Sperry, Joel S Weissman
Importance: Little evidence exists to guide helicopter emergency medical services (HEMS) triage, and current practice is inefficient. The Air Medical Prehospital Triage (AMPT) score was developed to identify patients most likely to benefit from HEMS compared with ground EMS. To our knowledge, no studies have evaluated the potential effect on costs and outcomes of a more targeted HEMS triage strategy, such as the AMPT score. Objective: To evaluate the cost-effectiveness of current practice compared with the AMPT score for HEMS scene triage of trauma patients...
November 1, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/29059493/perinatal-helicopter-ambulance-service-at-wakayama-medical-university-hospital-a-14-year-review
#14
Takeshi Kumagai, Mitsuhiko Riko, Masashi Satoh, Nobuyuki Kakimoto, Takuya Sugimoto, Mina Ueda, Takahiro Okutani, Ryuzo Higuchi, Shigetaka Yagi, Sawako Minami, Asumi Higa, Masakazu Miyawaki, Hiroyuki Suzuki
BACKGROUND: In 2003, a perinatal helicopter air ambulance service was introduced for remote areas of Wakayama and Mie prefectures, Japan. However, its long-term impact on perinatal medicine has not yet been analyzed. METHODS: A retrospective observational study was conducted on helicopter air ambulance cases recorded between January 2003 and December 2016 at Wakayama Medical University Hospital (WMUH). RESULTS: During that period, 61 pregnant mothers were transferred by helicopter air ambulance to WMUH...
October 23, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29056781/the-effect-of-sporting-events-on-medical-transport-time-at-a-level-1-trauma-center-a-retrospective-cohort-study
#15
Patrick Bonasso, Brandon P Lucke-Wold, Mark Riffon, Dustin Long, Alison Wilson, Jennifer Knight
OBJECTIVE: We investigate how West Virginia University football games affect transport to Ruby Memorial Hospital, which shares a parking lot with Milan Puskar Football Stadium. METHODS: A retrospective chart review of a trauma registry from a level 1-trauma center was conducted from 2007 to 2011 for all home and away football games. Home games served as time period of interest and away games served as a control time period. Patient charts were collected for a 36-hour time window surrounding the game...
May 2017: West Virginia Medical Journal
https://www.readbyqxmd.com/read/29052534/specialist-advice-may-improve-patient-selection-for-decompression-therapy-following-diving-accidents-a-retrospective-observational-study
#16
Daniel Steffensmeier, Roland Albrecht, Jürg Wendling, Roger Melliger, Donat R Spahn, Philipp Stein, Christophe Wyss
BACKGROUND: Even in a landlocked country like Switzerland recreational diving is becoming more and more popular. Smaller lakes in the Alps are located at an altitude of 2500 m above sea level. The incidence of diving accidents among all helicopter emergency service missions and the consecutive medical knowledge about decompression injuries is low. Thus, a collaboration between the Swiss Air-Ambulance (Rega) and the divers alert network (DAN) was initiated to improve patient treatment and identification of decompression injury and necessity of hyperbaric oxygen therapy (HBO)...
October 19, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29032875/ventilator-use-by-emergency-medical-services-during-911-calls-in-the-united-states
#17
Mazen El Sayed, Hani Tamim, Aurelie Mailhac, Mann N Clay
BACKGROUND: Emergency and transport ventilators use in the prehospital field is not well described. This study examines trends of ventilator use by EMS agencies during 911 calls in the United States and identifies factors associated with this use. METHODS: This retrospective study used four consecutive releases of the US National Emergency Medical Services Information System (NEMSIS) public research dataset (2011-2014) to describe scene EMS activations (911 calls) with and without reported ventilator use...
October 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28990261/heated-air-humidification-versus-cold-air-nebulization-in-newly-tracheostomized-patients
#18
Richard Birk, Alexander Händel, Angela Wenzel, Benedikt Kramer, Christoph Aderhold, Karl Hörmann, Boris A Stuck, J Ulrich Sommer
BACKGROUND: After tracheostomy, the airway lacks an essential mechanism for warming and humidifying the inspired air with the consequent functional impairment and discomfort. The purpose of this study was to compare airway hydration with cold-air nebulization versus heated high-flow humidification on medical interventions and tracheal ciliary beat frequency (CBF). METHODS: Newly tracheostomized patients (n = 20) were treated either with cold-air nebulization or heated humidification...
December 2017: Head & Neck
https://www.readbyqxmd.com/read/28985859/in-by-helicopter-out-by-cab-the-financial-cost-of-aeromedical-overtriage-of-trauma-patients
#19
SriGita Krishna Madiraju, Joseph Catino, Candace Kokaram, Thomas Genuit, Marko Bukur
BACKGROUND: Helicopter transport of injured patients is controversial and costly. This study aims to show that a complex trauma algorithm leads to significant aeromedical overtriage at substantial cost. Our secondary outcomes were to compare adjusted mortality and outcomes between air and ground transport and determine predictors of overtriage. MATERIALS AND METHODS: A 6-y retrospective analysis was conducted of all trauma activations at a Level I center. Patients were dichotomized by transportation method as well as trauma activation criteria...
October 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28980632/printable-organometallic-perovskite-enables-large-area-low-dose-x-ray-imaging
#20
Yong Churl Kim, Kwang Hee Kim, Dae-Yong Son, Dong-Nyuk Jeong, Ja-Young Seo, Yeong Suk Choi, In Taek Han, Sang Yoon Lee, Nam-Gyu Park
Medical X-ray imaging procedures require digital flat detectors operating at low doses to reduce radiation health risks. Solution-processed organic-inorganic hybrid perovskites have characteristics that make them good candidates for the photoconductive layer of such sensitive detectors. However, such detectors have not yet been built on thin-film transistor arrays because it has been difficult to prepare thick perovskite films (more than a few hundred micrometres) over large areas (a detector is typically 50 centimetres by 50 centimetres)...
October 4, 2017: Nature
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