Most medical practitioners are not specifically trained to diagnose or manage in-flight medical incidents, yet there may occur a moral obligation to do so when least expected. We felt that knowledge of the frequency of emergency versus non-serious medical incidents, in addition to the clinical spectrum of incidents most often encountered, would be of interest to medical practitioners and, in particular, critical care physicians, who happen to find themselves asked to assist with such events. To this end we collaborated with the Department of Medical Services of a major Australian airline to define the incidence, severity, and type of all in-flight medical events encountered over the course of a year's flights. We audited in-flight medical data collected over a continuous 12-month period, which covered 131,890 international and domestic flight sectors transporting more than 27 million passengers. There was an average of 296 medical events per month (3555 in total) making the per-flight incidence of a medical event approximately 1:40 (2.7%). Of these in-flight incidents, 915 (26%) were graded as emergencies, with the commonest descriptors of such incidents being either loss of consciousness (37%) or a suspected cardiovascular event (12%). Six of these 915 emergencies proved fatal. Twenty-one flights were diverted due to medical incidents (<0.016% of all flights), with 52% of these attributed to suspected cardiac events. In this series, medical in-flight events were recorded in approximately one in 40 flights, whereas medical emergencies occurred in approximately one in 150 flights.

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Objective: The objective of this scoping review is to identify the availability of quantitative biomechanical measurements from human tissues. This review will also consider the primary motivations for collecting biomechanical measurements of human tissues. The overall purpose of our research is to develop medical skills trainers that provide better haptic fidelity than those that are currently available. Introduction: Medical skills trainers are commonly used in clinician training, but trainers do not always have the same haptic properties as patients. This could be due to the limited availability or application of documented biomechanical properties of human tissues when developing trainers. Inclusion criteria: This scoping review will examine studies that have quantitatively measured the mechanical properties of human tissues. Only macroscopic specimens will be included, and articles primarily considering optical, acoustic, and thermal properties will be excluded. Included sources of evidence are from primary research, systematic reviews, meta-analyses, and conference proceedings. Methods: This review will follow the JBI methodology for scoping reviews. Sources of evidence will be extracted from CINAHL, IEEE Xplore, MEDLINE, Scopus, and biomedical engineering conference proceedings. The search is limited to articles in English. Full articles will be retrieved if their title or abstract meet the inclusion criteria. Tabular, visual, and narrative summaries will be used to present the results. Scoping review protocol registration: Open Science Framework https://osf.io/fgb34

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