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https://www.readbyqxmd.com/read/28923146/cannon-ball-diagnosis-and-management-in-a-flight-attendant-candidate
#1
Meryem Zerrik, Houda Echchachoui, Zakaria Iloughmane, Choukri El'mhadi, Salaheddine Elkhader, Laila Benaissa, Mohamed Chemsi
BACKGROUND: ''Cannon ball'' opacities on chest X-rays are a common manifestation of hematogenous dissemination of a malignant tumor in the lungs. They indicate an advanced stage of disease with a very grim prognosis in terms of cure and survival. In aerospace medicine, this aspect means the patient is unfit for flight duties. Nonmetastatic etiologies of pulmonary nodules are rare. We report a case of cannon ball opacities discovered fortuitously during an admission visit. CASE REPORT: A 23-yr-old flight attendant candidate came to the Aeromedical Expertise Center of the Military Hospital in Rabat for medical evaluation...
October 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28923140/working-memory-capacity-and-surgical-performance-while-exposed-to-mild-hypoxic-hypoxemia
#2
Paul J Parker, Andrew J Manley, Ross Shand, John P O'Hara, Adrian Mellor
INTRODUCTION: Medical Emergency Response Team (MERT) helicopters fly at altitudes of 3000 m in Afghanistan (9843 ft). Civilian hospitals and disaster-relief surgical teams may have to operate at such altitudes or even higher. Mild hypoxia has been seen to affect the performance of novel tasks at flight levels as low as 5000 ft. Aeromedical teams frequently work in unpressurized environments; it is important to understand the implications of this mild hypoxia and investigate whether supplementary oxygen systems are required for some or all of the team members...
October 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28917760/rapid-and-sensitive-serum-glucose-determination-using-chemical-labeling-coupled-with-black-phosphorus-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry
#3
Qing Wang, Lei Yu, Chu-Bo Qi, Jun Ding, Xiao-Mei He, Ren-Qi Wang, Yu-Qi Feng
Monitoring the concentration of blood glucose in patients is a key component of good medical diagnoses. Therefore, developing an accurate, rapid and sensitive strategy for monitoring blood glucose is of vital importance. We proposed a strategy for serum glucose determination combining 2-(4-boronobenzyl) isoquinolin-2-ium bromide chemical labeling with black phosphorus assisted laser desorption ionization-time of flight mass spectrometry (CL-BP/ALDI-TOF MS). The entire analytical process consisted of 1min of protein precipitation and 3min of chemical labeling in a microwave oven prior to the BP/ALDI-TOF MS analysis...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28911341/rapid-detection-of-staphylococcus-aureus-and-related-species-isolated-from-food-environment-cosmetics-a-medical-device-and-clinical-samples-using-the-vitek-ms-microbial-identification-system
#4
Irshad M Sulaiman, Pratik Banerjee, Ying-Hsin Hsieh, Nancy Miranda, Steven Simpson, Khalil Kerdahi
Staphylococcus spp. is considered as one of the most common human-pathogenic bacteria, causing illnesses ranging from nonthreatening skin infections to lethal diseases, including sepsis, pneumonia, bloodstream infections, and food poisoning. The emergence of methicillin-resistant Staphylococcus aureus strains has increased morbidity and mortality and resulted in a major healthcare burden worldwide. Single and multilocus sequence typing have been extensively used in the identification of Staphylococcus species...
September 15, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28886788/logistical-concerns-for-prehospital-blood-product-use-by-air-medical-services
#5
REVIEW
Patrick Maher, Richard Utarnachitt, Max J Louzon, Roxann Gary, Nina Sen, John R Hess
Over the past few decades, reports have described favorable results from transfusion of blood products in helicopter EMS (HEMS). Nevertheless, the initiation of a HEMS transfusion program requires consideration of many factors, some unique to each clinical site. This paper describes our experience developing a HEMS transfusion program in an urban non-hospital based HEMS program with a history of long transport times. When considering blood use away from the hospital, major consideration must be given to safe storage and monitoring of blood products both on the ground and while in flight...
September 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28886785/reducing-door-in-door-out-intervals-in-helicopter-st-segment-elevation-myocardial-infarction-interhospital-transfers
#6
Michael A Schneider, Jason T McMullan, Christopher J Lindsell, Kimberly W Hart, Diana Deimling, Debra Jump, Todd Davis, William R Hinckley
BACKGROUND: Many health systems rely on helicopter EMS (HEMS) to transfer ST-elevation myocardial infarction (STEMI) patients for percutaneous coronary intervention (PCI) to a hospital with a catheterization laboratory. Mortality rates increase with the time to reperfusion, so reducing delays is imperative. For interhospital STEMI transfers, the time spent in the initial hospital from arrival until departure (door-in to door-out interval or DIDO) should be minimized. OBJECTIVE: To evaluate the impact of a series of process improvements to reduce DIDO intervals for STEMI patients transferred via a hospital based HEMS program...
September 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28883024/hearing-threshold-shifts-among-military-pilots-of-the-israeli-air-force
#7
Liyona Kampel-Furman, Z Joachims, H Bar-Cohen, A Grossman, Y Frenkel-Nir, Y Shapira, E Alon, E Carmon, B Gordon
BACKGROUND: Military aviators are potentially at risk for developing noise-induced hearing loss. Whether ambient aircraft noise exposure causes hearing deficit beyond the changes attributed to natural ageing is debated. The aim of this research was to assess changes in hearing thresholds of Israeli Air Force (IAF) pilots over 20 years of military service and identify potential risk factors for hearing loss. METHODS: A retrospective cohort analysis was conducted of pure-tone air conduction audiograms of pilots, from their recruitment at 18 years of age until the last documented medical check-up...
September 6, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28881037/comparison-of-vessel-enhancement-algorithms-applied-to-time-of-flight-mra-images-for-cerebrovascular-segmentation
#8
Renzo Phellan, Nils D Forkert
PURPOSE: Vessel enhancement algorithms are often used as a preprocessing step for vessel segmentation in medical images to improve the overall segmentation accuracy. Each algorithm uses different characteristics to enhance vessels, such that the most suitable algorithm may vary for different applications. This paper presents a comparative analysis of the accuracy gains in vessel segmentation generated by the use of nine vessel enhancement algorithms: Multiscale vesselness using the formulas described by Erdt (MSE), Frangi (MSF), and Sato (MSS), optimally oriented ux (OOF), ranking orientations responses path operator (RORPO), the regularized Perona-Malik approach (RPM), vessel enhanced diffusion (VED), hybrid diffusion with continuous switch (HDCS), and the white top hat algorithm (WTH)...
September 7, 2017: Medical Physics
https://www.readbyqxmd.com/read/28872706/candida-bloodstream-infections-in-serbia-first-multi-center-report-of-a-national-prospective-observational-survey-in-intensive-care-units
#9
Valentina Arsić Arsenijević, Suzana Otašević, Dragana Janić, Predrag Minić, Jovan Matijašević, Deana Medić, Ivanka Savić, Snežana Delić, Suzana Laban Nestorović, Zorica Vasiljević, Mirjana Hadnadjev
Candida bloodstream infections (BSI) are a significant cause of mortality in intensive care units (ICU), hereof the prospective twelve-months (2014-2015) hospital and laboratory-based survey was performed at the Serbian National Reference Medical Mycology Laboratory (NRMML). Candida identification was done by a matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and a susceptibility test, according to the Clinical and Laboratory Standards Institute methodology. Among 9 centers (265 beds; 10...
September 5, 2017: Mycoses
https://www.readbyqxmd.com/read/28858022/lessons-learned-from-an-in-flight-medical-event
#10
Mumbi Melody Ngugi
Air transportation, although safe, exposes passengers to distinct physical, psychological, and physiological stressors that may be well tolerated in a healthy passenger but may trigger or exacerbate a medical event in a passenger with underlying medical problems. This article describes how a medical provider on the flight assisted with a medical emergency on a transatlantic flight.
September 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28818149/cerebellar-infarction-presenting-with-acute-vestibular-syndrome-in-two-u-s-air-force-pilots
#11
Roger R Hesselbrock
BACKGROUND: Cerebellar infarction is an uncommon but serious cause of isolated acute vestibular symptoms, particularly in young, healthy individuals, and can easily be overlooked. We present two cases of cerebellar infarction in U.S. Air Force pilots, one of which occurred during flight. CASE REPORTS: A 41-yr-old man developed acute vertigo, disequilibrium, nausea, and headache, with progressive slow symptomatic improvement, and presented to medical attention 4 d after symptom onset...
September 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28818148/cross-sectional-survey-of-physicians-on-providing-volunteer-care-for-in-flight-medical-events
#12
Eric Chatfield, William F Bond, Bradley McCay, Claude Thibeault, Paulo M Alves, Marc Squillante, Joshua Timpe, Courtney J Cook, Raymond E Bertino
BACKGROUND: Airline carriers have equipment, procedures, and protocols in place to handle in-flight medical events (IFMEs). Community physicians may be asked for aid during IFMEs. Cross-Sectional Survey of Physicians on Providing Volunteer Care for In-Flight Medical Events surveyed self-assessed awareness and knowledge, perceived barriers, and suggestions for improving responses to IFMEs. METHODS: We composed a survey regarding clinicians' self-assessed understanding of in-flight resources, procedures, flight environmental issues, and Good Samaritan protections...
September 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28818147/attention-deficit-hyperactivity-disorder-and-fatal-accidents-in-aviation-medicine
#13
Tanja Laukkala, Robert Bor, Bruce Budowle, Antti Sajantila, Pooshan Navathe, Markku Sainio, Alpo Vuorio
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder with symptoms of inattention and/or hyperactivity-impulsivity that interfere with functioning and/or development. ADHD occurs in about 2.5% of adults. ADHD can be an excluding medical condition among pilots due to the risk of attentional degradation and therefore impact on flight safety. Diagnosis of ADHD is complex, which complicates aeromedical assessment. This study highlights fatal accident cases among pilots with ADHD and discusses protocols to detect its presence to help to assess its importance to flight safety...
September 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28801691/a-new-data-processing-routine-facilitating-the-identification-of-surface-adhered-proteins-from-bacterial-conditioning-films-via-qcm-d-maldi-tof-ms
#14
Siegfried Hohmann, Anke Neidig, Boris Kühl, Frank Kirschhöfer, Jörg Overhage, Gerald Brenner-Weiß
Conditioning films are an important factor in the initiation and development of microbial biofilms, which are the leading cause of chronic infections associated with medical devices. Here, we analyzed the protein content of conditioning films formed after exposure to supernatants of cultures of the human pathogen Pseudomonas aeruginosa PAO1. Adhesion of substances from the supernatant was monitored using quartz crystal microbalance with dissipation monitoring (QCM-D) sensor chips modified with the commonly used implant material titanium dioxide (TiO2)...
August 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28798972/diagnostic-precision-of-triage-algorithms-for-mass-casualty-incidents-english-version
#15
A R Heller, N Salvador, M Frank, J Schiffner, R Kipke, C Kleber
BACKGROUND: Regarding survival and quality of life recent mass casualty incidents again emphasize the importance of early identification of the correct degree of injury/illness to enable prioritization of treatment amongst patients and their transportation to an appropriate hospital. The present study investigated existing triage algorithms in terms of sensitivity (SE) and specificity (SP) as well as its process duration in a relevant emergency patient cohort. METHODS: In this study 500 consecutive air rescue missions were evaluated by means of standardized patient records...
August 10, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28776774/identification-of-some-bioactive-metabolites-in-a-fractionated-methanol-extract-from-ipomoea-aquatica-aerial-parts-through-tlc-hplc-uplc-esi-qtof-ms-and-lc-spe-nmr-fingerprints-analyses
#16
Mahmoud Hefny Gad, Emmy Tuenter, Nagwa El-Sawi, Sabry Younes, El-Mewafy El-Ghadban, Kristiaan Demeyer, Luc Pieters, Yvan Vander Heyden, Debby Mangelings
INTRODUCTION: The plant species Ipomoea aquatica contains various bioactive constituents, e.g. phenols and flavonoids, which have several medical uses. All previous studies were executed in Asia; however, no reports are available from Africa, and the secondary metabolites of this plant species from Africa are still unknown. OBJECTIVE: The present study aims finding suitable conditions to identify the bioactive compounds from different fractions. METHODOLOGY: Chromatographic fingerprint profiles of different fractions were developed using high-performance liquid chromatography (HPLC) and then these conditions were transferred to thin-layer chromatography (TLC)...
August 4, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28744481/visualizing-antimicrobials-in-bacterial-biofilms-three-dimensional-biochemical-imaging-using-tof-sims
#17
Sarah K Davies, Sarah Fearn, Luke P Allsopp, Freya Harrison, Ecaterina Ware, Stephen P Diggle, Alain Filloux, David S McPhail, Jacob G Bundy
Bacterial biofilms are groups of bacteria that exist within a self-produced extracellular matrix, adhering to each other and usually to a surface. They grow on medical equipment and inserts such as catheters and are responsible for many persistent infections throughout the body, as they can have high resistance to many antimicrobials. Pseudomonas aeruginosa is an opportunistic pathogen that can cause both acute and chronic infections and is used as a model for research into biofilms. Direct biochemical methods of imaging of molecules in bacterial biofilms are of high value in gaining a better understanding of the fundamental biology of biofilms and biochemical gradients within them...
July 2017: MSphere
https://www.readbyqxmd.com/read/28744243/the-odyssey-of-dental-anxiety-from-prehistory-to-the-present-a-narrative-review
#18
REVIEW
Enrico Facco, Gastone Zanette
Dental anxiety (DA) can be considered as a universal phenomenon with a high prevalence worldwide; DA and pain are also the main causes for medical emergencies in the dental office, so their prevention is an essential part of patient safety and overall quality of care. Being DA and its consequences closely related to the fight-or-flight reaction, it seems reasonable to argue that the odyssey of DA began way back in the distant past, and has since probably evolved in parallel with the development of fight-or-flight reactions, implicit memory and knowledge, and ultimately consciousness...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28734043/enabling-reduction-of-low-grade-inflammation-in-seniors-pilot-study-concept-rationale-and-design
#19
Todd M Manini, Stephen D Anton, Daniel P Beavers, Jane A Cauley, Mark A Espeland, Roger A Fielding, Stephen B Kritchevsky, Christiaan Leeuwenburgh, Kristina H Lewis, Christine Liu, Mary M McDermott, Michael E Miller, Russell P Tracy, Jeremy D Walston, Barbara Radziszewska, Jane Lu, Cindy Stowe, Samuel Wu, Anne B Newman, Walter T Ambrosius, Marco Pahor
OBJECTIVES: To test two interventions to reduce interleukin (IL)-6 levels, an indicator of low-grade chronic inflammation and an independent risk factor for impaired mobility and slow walking speed in older adults. DESIGN: The ENabling Reduction of low-Grade Inflammation in SEniors (ENRGISE) Pilot Study was a multicenter, double-blind, placebo-controlled randomized pilot trial of two interventions to reduce IL-6 levels. SETTING: Five university-based research centers...
September 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28722283/comparative-analysis-of-storage-conditions-and-homogenization-methods-for-tick-and-flea-species-for-identification-by-maldi-tof-ms
#20
A Nebbak, B El Hamzaoui, J-M Berenger, I Bitam, D Raoult, L Almeras, P Parola
Ticks and fleas are vectors for numerous human and animal pathogens. Controlling them, which is important in combating such diseases, requires accurate identification, to distinguish between vector and non-vector species. Recently, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) was applied to the rapid identification of arthropods. The growth of this promising tool, however, requires guidelines to be established. To this end, standardization protocols were applied to species of Rhipicephalus sanguineus (Ixodida: Ixodidae) Latreille and Ctenocephalides felis felis (Siphonaptera: Pulicidae) Bouché, including the automation of sample homogenization using two homogenizer devices, and varied sample preservation modes for a period of 1-6 months...
July 19, 2017: Medical and Veterinary Entomology
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