Publications by authors named "Aaron B Klassen"

Objectives: Emergency Departments (EDs) frequently care for patients with life-limiting illnesses, with nearly 1 in 5 patients enrolled in hospice presenting to an ED during their hospice enrollment. This study investigates the reasons patients enrolled in hospice seek care in the ED, the interventions they receive, and their outcomes.

Methods: Multicenter, retrospective cohort study of patients enrolled in hospice who presented to an ED within a health system between 2018 and 2023.

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Introduction: Left ventricular assist devices (LVAD) are increasingly common among patients with heart failure. The unique physiologic characteristics of patients with LVADs present a challenge to emergency clinicians making treatment and disposition decisions. Despite the increasing prevalence of LVADs, literature describing emergency department (ED) visits among this population is sparse.

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Background: After officer-involved shootings (OIS), rapid delivery of emergency medical care is critical but may be delayed due to scene safety concerns. The purpose of this study was to describe medical care rendered by law enforcement officers (LEOs) after lethal force incidents.

Methods: Retrospective analysis of open-source video footage of OIS occurring from February 15, 2013 through December 31, 2020.

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Background: New patient-centered models of care are needed to individualize care and reduce high-cost care, including emergency department (ED) visits and hospitalizations for low- and intermediate-acuity conditions that could be managed outside the hospital setting. Community paramedics (CPs) have advanced training in low- and high-acuity care and are equipped to manage a wide range of health conditions, deliver patient education, and address social determinants of health in the home setting. The objective of this trial is to evaluate the effectiveness and implementation of the Care Anywhere with Community Paramedics (CACP) program with respect to shortening and preventing acute care utilization.

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Objective: Performance feedback on clinical care and patient outcomes is a cornerstone of medical education, yet it remains lacking in the prehospital environment. Research seeking to establish the quantity of feedback provided to Emergency Medical Services (EMS) has been limited and studies focused on complimentary feedback or how feedback relates to EMS job satisfaction are lacking. The objectives of this study were to measure the frequency and nature of feedback received by EMS agencies and to identify the importance of receiving feedback as it relates to EMS job satisfaction.

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Background: Tactical Emergency Medical Support (TEMS) providers may encounter severe traumatic injuries, with associated hemorrhagic shock, coagulopathy, and hyperfibrinolysis. Tranexamic acid (TXA) administration represents a potential intervention in this operational environment. This study evaluated TXA availability and use among US tactical medical personnel supporting law enforcement tactical teams.

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Background: Although first responders (FRs) represent a high-risk group for exposure, little information is available regarding their risk of coronavirus disease 2019 (COVID-19) infection. The purpose of the current study was to determine the serological prevalence of past COVID-19 infection in a cohort of municipal law enforcement (LE) and firefighters (FFs).

Methods: Descriptive analysis of a de-identified data reporting Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) immunoglobulin G (IgG), or COR2G, serology results for municipal FRs.

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Background: The purpose of the current study was to describe the injury patterns, EMS response and interventions to mass shooting (MS) and active shooter (AS) incidents.

Methods: Retrospective analysis of 2014-2015 National Emergency Medical Services Information System (NEMSIS) data sets. Date, time, and location for MS incidents were obtained from the Gun Violence Archive and then correlated with NEMSIS data set records.

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Unlabelled: Study Objectives Law enforcement is increasingly viewed as a key component in the out-of-hospital chain of survival, with expanded roles in cardiac arrest, narcotic overdose, and traumatic bleeding. Little is known about the nature of care provided by law enforcement prior to the arrival of Emergency Medical Services (EMS) assets. The purpose of the current study was to perform a descriptive analysis of events reported to a national EMS database.

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