scholarly journals Communication in interdisciplinary teams: exploring closed-loop communication during in situ trauma team training

BMJ Open ◽  
2013 ◽  
Vol 3 (10) ◽  
pp. e003525 ◽  
Author(s):  
Maria Härgestam ◽  
Marie Lindkvist ◽  
Christine Brulin ◽  
Maritha Jacobsson ◽  
Magnus Hultin
BMJ Open ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. e009911 ◽  
Author(s):  
Maria Härgestam ◽  
Marie Lindkvist ◽  
Maritha Jacobsson ◽  
Christine Brulin ◽  
Magnus Hultin

2015 ◽  
Author(s):  
Judi Galea ◽  
Rosel Tallach ◽  
Sarah Turle ◽  
Anil Joshi

CJEM ◽  
2016 ◽  
Vol 18 (S1) ◽  
pp. S78-S79 ◽  
Author(s):  
A. Petrosoniak ◽  
A. Gray ◽  
M. Fan ◽  
K. White ◽  
M. McGowan ◽  
...  

Introduction: Resuscitation of a trauma patient requires a multidisciplinary team to perform in a dynamic, high-stakes environment. Error is ubiquitous in trauma care, often related to latent safety threats (LSTs) - previously unrecognized threats that can materialize at any time. In-situ simulation (ISS) allows a team to practice in their authentic environment while providing an opportunistic milieu to explore critical events and uncover LSTs that impact patient safety. Methods: At a Canadian Level 1 trauma centre, regular, unannounced trauma ISSs were conducted and video-recorded. A retrospective chart review of adverse events or unexpected deaths informed ISS scenario design. Each session began with a trauma team activation. The on-duty trauma team arrived in the trauma bay and provided care as they would for a real patient. Semi-structured debriefing with participant-driven LST identification and ethnographic observation occurred in real time. A framework analysis using video review was conducted by human factors experts to identify and evaluate LSTs. Feasibility was measured by the impact on ED workflow, interruptions of clinical care and participant feedback. Results: Six multidisciplinary, high-fidelity, ISS sessions were conducted and 70 multidisciplinary staff and trainees participated in at least one session. Using a framework analysis, LSTs were identified and categorized into seven themes that relate to clinical tasks, equipment, team communication, and participant workflow. LSTs were quantified and prioritized using a hazard scoring matrix. ISS was effectively implemented during both low and high patient volume situations. No critical interruptions in patient care were identified during ISS sessions and overall participant feedback was positive. Conclusion: This novel, multidisciplinary ISS trauma training program integrated risk-informed simulation cases with human factors analysis to identify LSTs. ISS offers an opportunity for an iterative review process of high-risk situations beyond the traditional morbidity and mortality rounds; rather than waiting for an actual case to generate discussion and review, we prophylactically examined critical situations and processes. Findings form a framework for recommendations about improvements in equipment, environment layout, workflow, system processes, effective team training, and ultimately patient safety.


Author(s):  
Philipp Peter Breese ◽  
Tobias Hauser ◽  
Daniel Regulin ◽  
Stefan Seebauer ◽  
Christian Rupprecht

AbstractThe powder mass flow rate is one of the main parameters regarding the geometrical precision of built components in the additive manufacturing process of laser metal deposition. However, its accuracy, constancy, and repeatability over the course of the running process is not given. Reasons among others are the performance of the powder conveyors, the complex nature of the powder behavior, and the resulting issues with existing closed-loop control approaches. Additionally, a direct in situ measurement of the powder mass flow rate is only possible with intrusive methods. This publication introduces a novel approach to measure the current powder mass flow rate at a frequency of 125 Hz. The volumetric powder flow evaluation given by a simple optical sensor concept was transferred to a mass flow rate through mathematical dependencies. They were found experimentally for a nickel-based powder (Inconel 625) and are valid for a wide range of mass flow rates. With this, the dynamic behavior of a vibration powder feeder was investigated and a memory effect dependent on previous powder feeder speeds was discovered. Next, a closed-loop control with the received sensor signal was implemented. The concept as a whole gives a repeatable and accurate powder mass flow rate while being universally retrofittable and applicable. In a final step, the improved dynamic and steady performance of the powder mass flow rate with closed-loop control was validated. It showed a reduction of mean relative errors for step responses of up to 81% compared to the uncontrolled cases.


Author(s):  
Trevor Chan ◽  
Mischa Megens ◽  
Byung-Wook Yoo ◽  
Connie Chang-Hasnain ◽  
Ming Wu ◽  
...  
Keyword(s):  

2016 ◽  
Vol 59 (1) ◽  
pp. 9-11 ◽  
Author(s):  
Lawrence M. Gillman ◽  
Doug Martin ◽  
Paul T. Engels ◽  
Peter Brindley ◽  
Sandy Widder ◽  
...  

Pharmaceutics ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 170 ◽  
Author(s):  
Tammam Alama ◽  
Kosuke Kusamori ◽  
Masaki Morishita ◽  
Hidemasa Katsumi ◽  
Toshiyasu Sakane ◽  
...  

Generally, the use of absorption enhancers might be the most effective approaches to ameliorate the enteric absorption of poorly absorbed substances. Among numerous absorption enhancers, we already reported that a gemini surfactant, sodium dilauramidoglutamide lysine (SLG-30) with two hydrophobic and two hydrophilic moieties, is a novel and promising adjuvant with a high potency in improving the absorption safely. Here, we examined and elucidated the absorption-improving mechanisms of SLG-30 in the enteric absorption of substances. SLG-30 increased the intestinal absorption of 5(6)-carboxyfluorescein (CF) to a greater level than the typical absorption enhancers, including sodium glycocholate and sodium laurate, as evaluated by an in situ closed-loop method. Furthermore, SLG-30 significantly lowered the fluorescence anisotropy of dansyl chloride (DNS-Cl), suggesting that it might increase the fluidity of protein sections in the intestinal cell membranes. Moreover, SLG-30 significantly lowered the transepithelial-electrical resistance (TEER) values of Caco-2 cells, suggesting that it might open the tight junctions (TJs) between the enteric epithelial cells. Additionally, the levels of claudin-1 and claudin-4 expression decreased in the presence of SLG-30. These outcomes propose that SLG-30 might improve the enteric transport of poorly absorbed substances through both transcellular and paracellular routes.


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