Laboratory Reconstructions of Bicycle Helmet Damage: Investigation of Cyclist Head Impacts Using Oblique Impacts and Computed Tomography
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Moral Injury: The Invisible Epidemic in COVID Health Care Workers
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A qualitative study of workplace violence among healthcare providers in emergency departments in India
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Not all protected bike lanes are the same: Infrastructure and risk of cyclist collisions and falls leading to emergency department visits in three U.S. cities
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The Mushroom Chronicles: The Case of the Poisonous Omelet
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Trends in Pediatric Poisoning-Related Emergency Department Visits: 2001–2011
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Prevalence of Chronic Hepatitis B and C Infection in Mongolian Immigrants in the Washington, District of Columbia, Metropolitan Area, 2016–2017
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Readmissions Following Inpatient Treatment for Opioid-Related Conditions
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9/24/2020
Melissa L. McCarthy, ScD
Paige Kulie, MPH
Abstract: Although head injuries are common in cycling, exact conditions associated with cyclist head impacts are difficult to determine. Previous studies have attempted to reverse engineer cyclist head impacts by reconstructing bicycle helmet residual damage, but they have been limited by simplified damage assessment and testing. The present study seeks to enhance knowledge of cyclist head impact conditions by reconstructing helmet damage using advanced impact testing and damage quantification techniques. Damage to 18 helmets from cyclists treated in emergency departments was quantified using computed tomography and reconstructed using oblique impacts. Damage metrics were related to normal and tangential velocities from impact tests as well as peak linear accelerations (PLA) and peak rotational velocities (PRV) using case-specific regression models. Models then allowed original impact conditions and kinematics to be estimated for each case. Helmets were most frequently damaged at the front and sides, often near the rim. Concussion was the most common, non-superficial head injury. Normal velocity and PLA distributions were similar to previous studies, with median values of 3.4 m/s and 102.5 g. Associated tangential velocity and PRV medians were 3.8 m/s and 22.3 rad/s. Results can inform future oblique impact testing conditions, enabling improved helmet evaluation and design.
https://doi.org/10.1007/s10439-020-02620-y
Cyclist Head Impacts
Bicycle Helmet Damage
Computed Tomography
Annals of Biomedical Engineering
6/23/2020
Breanne Jacobs, MD, MA
Rita A. Manfredi, MD
Medicine is mourning 3 of our own during the past few weeks, cut down not by the virus, as too many others were, but by their own hands in the midst of the crisis. They signal death by suicide and the arrival of coronavirus disease 2019 (COVID-19) Curve 1.5—the surge of trauma, grief, and moral injury swelling during the pandemic response. If you are reading this for answers to your own emotional struggle, before you finish this piece please pick up the phone and call the Physician Support Line (888) 409-0141 or the National Suicide Prevention Lifeline (800) 273-8255.
https://doi.org/10.1016/j.annemergmed.2020.05.023
wellness
Covid-19
Suicide
extreme stress
Annals of Emergency Medicine
6/17/2020
Kevin Davey, MD
Tania Ahluwalia, MD
Janice Blanchard, MD, PhD, MPH
Jeffery Smith, MD, MPH
Katherine Douglass, MD, MPH
Background
Emergency department (ED) workplace violence is increasingly recognized as an important issue for ED providers. Most studies have occurred in developed countries with established laws and repercussions for violence against healthcare providers. There is a paucity of data on workplace violence against ED providers in less developed countries. The aim of this study was to learn more about workplace violence among healthcare providers in EDs in India.
https://doi.org/10.1186/s12245-020-00290-0
workplace violence
India
International Journal of Emergency Medicine
5/6/2020
Paige Kulie, MPH
Melissa L. McCarthy, ScD
Objective
Protected bike lanes separated from the roadway by physical barriers are relatively new in the United States. This study examined the risk of collisions or falls leading to emergency department visits associated with bicycle facilities (e.g., protected bike lanes, conventional bike lanes demarcated by painted lines, sharrows) and other roadway characteristics in three U.S. cities.
https://doi.org/10.1016/j.aap.2020.105490
Bicycle
Bike Lane
Injury
Bike path
Accident Analysis & Prevention
5/3/2019
Jennifer Rabjohns, MD
On a summer afternoon in suburban Virginia, one BLS and two ALS ambulances are dispatched to an apartment complex for three people experiencing severe abdominal pain with nausea, vomiting and diarrhea onset three hours ago.
Objectives: We sought to understand the burden of pediatric poisonings on the health care system by characterizing poisoning-related emergency department (ED) visits among children on a national level.
http://dx.doi.org/10.1097/PEC.0000000000001817
Pediatric Poisoning
Pediatrics
Pediatric Emergency Care
1/24/2019
Janice Blanchard, MD, PhD, MPH
Introduction:
Mongolia has the highest liver cancer incidence in the world. Hepatocellular carcinoma is the most prevalent primary liver cancer, and the most common risk factors are hepatitis B virus (HBV) or hepatitis C virus (HCV) infection. Although viral hepatitis occurs mostly in the developing world, migration of people from high prevalence countries contributes to the health outcomes of the United States. Data on Mongolian Americans is limited. The objective of this study was to estimate HBV and HCV infection prevalence among Mongolia-born immigrants living in the Washington, District of Columbia, metropolitan area.
http://dx.doi.org/10.5888/pcd16.180104
Mongolian Immigrants
hepatitis B virus
hepatitis C virus
Liver Cancer
Preventing Chronic Disease
1/8/2019
Janice Blanchard, MD, PhD, MPH
Background: Previous research suggests that relatively few hospitalized patients with opioid-related conditions receive substance use treatment during their inpatient stay. Without treatment, these individuals may be more likely to have subsequent hospitalizations for continued opioid use disorder.
Objective: To evaluate the relationship between receipt of inpatient drug detoxification and/or rehabilitation services and subsequent opioid-related readmission.