A Machine Learning-Based Study of the Effects of Air Pollution and Weather in Respiratory Disease Patients Visiting Emergency Departments.

Background: To date, investigating respiratory disease patients visiting the emergency departments related with fined dust is limited. This study aimed to analyze the effects of two variable-weather and air pollution on respiratory disease patients who visited emergency departments.

Methods: This study utilized the National Emergency Department Information System (NEDIS) database.

Excessive Daytime Sleepiness and Its Associated Factors among Emergency Medicine Residents in South Korea: A Nationwide Survey.

Objective: Excessive daytime sleepiness (EDS) in emergency medicine (EM) residents is associated with patient safety. However, studies regarding EDS in EM residents are limited. The objective of this study was to identify the prevalence of EDS and its associated factors among EM residents.

Analysis of the Adequacy of Prehospital Emergency Medical Services Use of Patients Who Visited Emergency Departments in Korea from 2016 to 2018: Data from the National Emergency Department Information System.

Introduction: Proper ambulance use is important not only due to the patient's transport quality but also because of the need for efficient use of limited resources allotted by the system. Therefore, this study was conducted to check for overuse or underuse of the ambulance system by patients who visited the emergency department (ED).

Methods: In this study, a secondary data analysis was conducted using the existing database of the National Emergency Department Information System with all patients who visited EDs over the three-year study period from 2016 to 2018.

Assessing the severity of pulmonary embolism among patients in the emergency department: Utility of RV/LV diameter ratio.

Background: Acute pulmonary embolism (APE) is a major cause of death from cardiovascular disease. Right ventricular systolic dysfunction (RVD) caused by APE is closely related to a poor outcome. Early risk stratification of APE is a vital step in prognostic assessment.

Comparison of traumatic brain injury patients with brain computed tomography in the emergency department by age group.

Objective: Traumatic brain injury (TBI) is an important public health concern due to its high prevalence and mortality rate among young people. We investigated the clinical and social characteristics of patients who visited the emergency department due to TBI in whom brain computed tomography, was performed by age.

Methods: We retrospectively analyzed 15,567 TBI patients who received a brain computed tomography evaluation at the emergency department of Korea University Hospital from March 2013 to February 2016.

Clinical Value of Whole Blood Procalcitonin Using Point of Care Testing, Quick Sequential Organ Failure Assessment Score, C-Reactive Protein and Lactate in Emergency Department Patients with Suspected Infection.

We investigated the clinical value of whole blood procalcitonin using point of care testing, quick sequential organ failure assessment score, C-reactive protein and lactate in emergency department patients with suspected infection and assessed the accuracy of the whole blood procalcitonin test by point-of-care testing. Participants were randomly selected from emergency department patients who complained of a febrile sense, had suspected infection and underwent serum procalcitonin testing. Whole blood procalcitonin levels by point-of-care testing were compared with serum procalcitonin test results from the laboratory.

High mortality from viral pneumonia in patients with cancer.

With the advancement of diagnostic methods, a viral infection is increasingly recognized in adult patients with pneumonia and the outcomes can be fatal especially in high-risk patients. We aimed to examine the clinical characteristics of adults with viral pneumonia and also to determine the associated factors with short-term mortality in those patients. Adult patients who were diagnosed as viral pneumonia between January 2010 and December 2015 were consecutively included.

Utility of the simplified Wells and revised Geneva scores to exclude pulmonary embolism in femur fracture patients.

Objectives: The diagnosis of acute pulmonary embolism (PE) in trauma patients is challenging. This study evaluated the diagnostic value of simplified Wells and simplified revised Geneva scores to predict PE in femur fracture patients in emergency department (ED).

Methods: All consecutive adult patients with femur fractures and elevated D-dimer levels (>0.

Predictors of septic shock in initially stable patients with pyogenic liver abscess.

Objectives: The incidence of pyogenic liver abscess (PLA), a life-threatening condition, is increasing worldwide. This study was designed to evaluate clinical features and outcomes in initially stable patients with PLA and to determine the predictors of septic shock.

Methods: The medical records of all adult patients who were hemodynamically stable and diagnosed with PLA in the emergency department from January 2010 to December 2014, inclusive, were reviewed.