Acceptance of a computer vision facilitated protocol to measure adherence to face mask use: a single-site, observational cohort study among hospital staff.

Objectives: Mask adherence continues to be a critical public health measure to prevent transmission of aerosol pathogens, such as SARS-CoV-2. We aimed to develop and deploy a computer vision algorithm to provide real-time feedback of mask wearing among staff in a hospital.

Design: Single-site, observational cohort study.

Cost-Effective Solution of Remote Photoplethysmography Capable of Real-Time, Multi-Subject Monitoring with Social Distancing.

Recent advances in remote-photoplethysmography (rPPG) have enabled the measurement of heart rate (HR), oxygen saturation (SpO), and blood pressure (BP) in a fully contactless manner. These techniques are increasingly applied clinically given a desire to minimize exposure to individuals with infectious symptoms. However, accurate rPPG estimation often leads to heavy loading in computation that either limits its real-time capacity or results in a costly setup.

Automated Versus Manual Cardiopulmonary Resuscitation in Flight: Are We Being Safe?

Objective: The primary purpose of this study was to compare the percentage of return of spontaneous circulation of in-flight cardiac arrest (IFCA) patients on admission to the emergency department (ED) who received in-flight standard cardiopulmonary resuscitation (s-CPR) versus automated cardiopulmonary resuscitation (a-CPR).

Setting: EMS helicopter (HEMS) service in Midwest USA.

Methods: This was a prospective, consecutive case series of adult patients who had IFCA of any cause managed with a-CPR between October 1, 2012, and February 8, 2016 (40 months), at a helicopter emergency medical service (HEMS) in the Midwestern United States.

Labels improve emergency medicine physician comfort and ability to use a slit lamp.

Slit-lamp (SL) biomicroscopy is an important skill for emergency medicine (EM) clinicians. However, residents and faculty have varying levels of comfort and skill with this procedure. While some of the discomfort may be from a knowledge gap, we hypothesized that at least some difficulty came from infrequent use and forgetting which of the many knobs, levers, buttons, and switches of the SL create the desired effects.

Evaluation of fixed versus variable dosing of 4-factor prothrombin complex concentrate for emergent warfarin reversal.

Study Objective: This study compares the safety and efficacy of a fixed dose of 4-factor prothrombin complex concentrate (4FPCC) to the FDA-approved variable dosing for reversal of warfarin-induced anticoagulation.

Methods: This was a single-center, prospective, open-label, randomized controlled trial with subjects randomized to 4FPCC at a fixed dose of 1500 IU or the FDA-approved variable dosing regimen. The primary efficacy outcome (reversal success) was defined as a post-intervention international normalized ratio (INR) of less than or equal to 1.

Elimination of Routine Screening Laboratory Tests for Psychiatric Admission: A Quality Improvement Initiative.

Objective: Research has shown that routine screening laboratory tests for patients with mental health symptoms admitted to psychiatry units find little unexpected clinical abnormalities. This study examined the effects on cost of care and patient safety measures of a hospital change in policy in which such routine tests were no longer required.

Methods: This retrospective cohort study analyzed data from all patients admitted from the emergency department (ED) to inpatient psychiatry at a tertiary care hospital 4 months before and 4 months after the policy change.

Quick cuts: A comparative study of two tools for ring tourniquet removal.

Background: Ring tourniquet occurs when a ring becomes entrapped due to swelling or trauma. As the finger expands the blood flow restriction causes additional swelling, which can lead to nerve damage and other complications. Ring tourniquet can be an emergency that requires rapid ring removal.

Few-cycle laser driven reaction nanoscopy on aerosolized silica nanoparticles.

Nanoparticles offer unique properties as photocatalysts with large surface areas. Under irradiation with light, the associated near-fields can induce, enhance, and control molecular adsorbate reactions on the nanoscale. So far, however, there is no simple method available to spatially resolve the near-field induced reaction yield on the surface of nanoparticles.

Diffractive Imaging of C_{60} Structural Deformations Induced by Intense Femtosecond Midinfrared Laser Fields.

Theoretical studies indicated that C_{60} exposed to linearly polarized intense infrared pulses undergoes periodic cage structural distortions with typical periods around 100 fs (1  fs=10^{-15}  s). Here, we use the laser-driven self-imaging electron diffraction technique, previously developed for atoms and small molecules, to measure laser-induced deformation of C_{60} in an intense 3.6  μm laser field.

Giardia in a selected population of dogs and cats in Germany - diagnostics, coinfections and assemblages.

Infections with the zoonotic endoparasite Giardia duodenalis are widely spread among dogs and cats worldwide. Since the question whether the infection might be transmitted from domestic animals to their owners is still an important topic, a reliable detection of patent Giardia infections and the determination of the associated Giardia assemblages is of major concern. The objectives of the present study were to determine the prevalence of Giardia infections in dogs and cats living in Germany using different diagnostic tests and to identify the Giardia assemblages of infected animals.

[Outpatient care in emergency departments and primary care services : A descriptive analysis of secondary data in a rural hospital].

Background: The use of emergency departments in German hospitals has been increasing in recent years. Emergency care provided by primary care services ("Bereitschaftsdienstpraxis") or a hospital emergency departments (EDs) is the subject of current discussions.

Aims: The purpose of this study was to determine the reasons that outpatients with lower treatment urgency consult the ED.

Resveratrol and Lifespan in Model Organisms.

Background: Resveratrol may possess life-prolonging and health-benefitting properties, some of which may resemble the effect of caloric restriction (CR). CR appears to prolong the lifespan of model organisms in some studies and may benefit human health. However, for humans, restricting food intake for an extended period of time seems impracticable and substances imitating the beneficial effects of CR without having to reduce food intake could improve health in an aging and overweight population.

German critical incident reporting system database of prehospital emergency medicine: Analysis of reported communication and medication errors between 2005-2015.

Background: Communication failure in prehospital emergency medicine can affect patient safety as it does in other areas of medicine as well. We analyzed the database of the critical incident reporting system for prehospital emergency medicine in Germany retrospectively regarding communication errors.

Methods: Experts of prehospital emergency medicine and risk management screened the database for verbal communication failure, non-verbal communication failure and missing communication at all.

Similarity of coagulation and inflammation despite different surgical revascularization strategies - a prospective randomized trial.

Background:: Supposedly, minimized extracorporeal circulation or off-pump revascularization as alternatives to conventional extracorporeal circulation (ONCAB) reduce inflammation and coagulation disturbances.

Methods:: One hundred and twenty coronary artery bypass graft (CABG) patients were prospectively randomized for three surgical techniques. Coagulation and inflammation markers were measured up to 72 hours postoperatively.

Competition of single and double rescattering in the strong-field photoemission from dielectric nanospheres.

Nanostructures exposed to ultrashort waveform-controlled laser pulses enable the generation of enhanced and highly localized near fields with adjustable local electric field evolution. Here, we study dielectric SiO nanospheres ( = 100-700 nm) under strong carrier-envelope phase-controlled few-cycle laser pulses and perform a systematic theoretical analysis of the resulting near-field driven photoemission. In particular, we analyze the impacts of charge interaction and local field ellipticity on the near-field driven electron acceleration.

Renal Function and Urinary Biomarkers in Cardiac Bypass Surgery: A Prospective Randomized Trial Comparing Three Surgical Techniques.

 Cardiopulmonary bypass procedure is associated with an increased risk of renal impairment. To which extent structural damage causes functional decline is unknown. We evaluated perioperative kidney injury and function in patients treated with conventional extracorporeal circulation (CECC), minimized extracorporeal circulation (MECC), and off-pump coronary artery bypass grafting (OPCAB).

Field propagation-induced directionality of carrier-envelope phase-controlled photoemission from nanospheres.

Near-fields of non-resonantly laser-excited nanostructures enable strong localization of ultrashort light fields and have opened novel routes to fundamentally modify and control electronic strong-field processes. Harnessing spatiotemporally tunable near-fields for the steering of sub-cycle electron dynamics may enable ultrafast optoelectronic devices and unprecedented control in the generation of attosecond electron and photon pulses. Here we utilize unsupported sub-wavelength dielectric nanospheres to generate near-fields with adjustable structure and study the resulting strong-field dynamics via photoelectron imaging.

Anticoagulation management during multivessel coronary artery bypass grafting: a randomized trial comparing individualized heparin management and conventional hemostasis management.

Background: Individualized heparin management (IHM) uses heparin dose-response curves to improve hemostasis management during cardiac surgery as compared with activated clotting time-based methods.

Objectives: IHM was compared with conventional hemostasis management (CHM) in a randomized, prospective study (ID DRKS00007580).

Methods: One-hundred and twenty patients undergoing multivessel coronary artery bypass grafting (CABG) were enrolled.

[Critical incidents in preclinical emergency airway management : Evaluation of the CIRS emergency medicine databank].

Background: Many patients are victims of disastrous incidents during medical interventions. One of the obligations of physicians is to identify these incidents and to subsequently develop preventive strategies in order to prevent future events. Airway management and prehospital emergency medicine are of particular interest as both categories frequently show very dynamic developments.

Follow-the-leader cell migration requires biased cell-cell contact and local microenvironmental signals.

Directed cell migration often involves at least two types of cell motility that include multicellular streaming and chain migration. However, what is unclear is how cell contact dynamics and the distinct microenvironments through which cells travel influence the selection of one migratory mode or the other. The embryonic and highly invasive neural crest (NC) are an excellent model system to study this question since NC cells have been observed in vivo to display both of these types of cell motility.

Extracellular matrix fluctuations during early embryogenesis.

Extracellular matrix (ECM) movements and rearrangements were studied in avian embryos during early stages of development. We show that the ECM moves as a composite material, whereby distinct molecular components as well as spatially separated layers exhibit similar displacements. Using scanning wide field and confocal microscopy we show that the velocity field of ECM displacement is smooth in space and that ECM movements are correlated even at locations separated by several hundred micrometers.

[A million football fans in a city of 120,000 inhabitants--a nightmare for emergency medicine and disaster management? Euro 2008 and the "Orange wonder of Berne"].

The 2008 European Football Championship 2008 (Euro 08) is the largest sporting event ever organized in Switzerland. One million visitors came to the city of Berne during the event and the local airport in Bern/Belp registered 261 extra flights. For each football game there were 33,000 fans in the stadium and 100,000 fans in the public viewing zones.