Variability of ICU use in adult patients with minor traumatic intracranial hemorrhage.

STUDY OBJECTIVE: Patients with minor traumatic intracranial hemorrhage are frequently admitted to the ICU, although many never require critical care interventions. To describe ICU resource use in minor traumatic intracranial hemorrhage, we assess (1) the variability of ICU use in a cohort of patients with minor traumatic intracranial hemorrhage across multiple trauma centers, and (2) the proportion of adult patients with traumatic intracranial hemorrhage who are admitted to the ICU and never receive a critical care intervention during hospitalization. In addition, we evaluate the association between ICU admission and key independent variables. METHODS: A structured, historical cohort study of adult patients (aged 18 years and older) with minor traumatic intracranial hemorrhage was conducted within a consortium of 8 Level I trauma centers in the western United States from January 2005 to June 2010. The study population included patients with minor traumatic intracranial hemorrhage, defined as an emergency department (ED) Glasgow Coma Scale (GCS) score of 15 (normal mental status) and an Injury Severity Score less than 16 (no other major organ injury). The primary outcome measure was initial ICU admission. The secondary outcome measure was a critical care intervention during hospitalization. Critical care interventions included mechanical ventilation, neurosurgical intervention, transfusion of blood products, vasopressor or inotrope administration, and invasive hemodynamic monitoring. ED disposition and the proportion of ICU patients not receiving a critical care intervention were compared across sites with descriptive statistics. The association between ICU admission and predetermined independent variables was analyzed with multivariable regression. RESULTS: Among 11,240 adult patients with traumatic intracranial hemorrhage, 1,412 (13%) had minor traumatic intracranial hemorrhage and complete ED disposition data (mean age 48 years; SD 20 years). ICU use within this cohort across sites ranged from 50% to 97%. Overall, 847 of 888 patients (95%) with minor traumatic intracranial hemorrhage who were admitted to the ICU did not receive a critical care intervention during hospitalization (range between sites 80% to 100%). Three of 524 (0.6%) patients discharged home or admitted to the observation unit or ward received a critical care intervention. After controlling for severity of injury (age, blood pressure, and Injury Severity Score), study site was independently associated with ICU admission (odds ratios ranged from 1.5 to 30; overall effect P<.001). CONCLUSION: Across a consortium of trauma centers in the western United States, there was wide variability in ICU use within a cohort of patients with minor traumatic intracranial hemorrhage. Moreover, a large proportion of patients admitted to the ICU never required a critical care intervention, indicating the potential to improve use of critical care resources in patients with minor traumatic intracranial hemorrhage.

Does the emergency medical treatment and labor act affect emergency department use?

BACKGROUND: Emergency departments (EDs) face increasing patient volumes and economic pressures. These problems have been attributed to the Emergency Medical Treatment and Labor Act (EMTALA). STUDY OBJECTIVE: To determine whether modifying EMTALA might reduce ED use. METHODS: We surveyed ED patients to assess their knowledge of hospitals' obligations to treat all patients regardless of insurance and to determine whether knowledge is associated with ED use. RESULTS: Among 4136 study subjects, 72% reported awareness of the law. Sixty-one percent of subjects were moderate ED users (≥ 1 additional ED visit in 12 months). Moderate users more often knew the law (74% vs. 70%, p=0.005). Multivariate regression showed that factors associated with moderate use were: awareness of EMTALA (odds ratio [OR] 1.44; 95% confidence interval [CI] 1.24-1.67), adult patient (OR 1.94; 95% CI 1.69-2.22), and government insurance (OR 2.67; 95% CI 2.30-3.08) or uninsured (OR 1.72; 95% CI 1.42-2.08). Only 8% of subjects were high-frequency users (≥5 visits). High-frequency users were more often aware of EMTALA (78% vs. 72%, p=0.02). Covariates associated with high frequency were EMTALA awareness (OR 1.69; 95% CI 1.28-2.24), adult patient (OR 2.59; 95% CI 2.00-3.36), and government insurance (OR 3.73; 95% CI 2.76-5.06) or uninsured (OR 3.77; 95% CI 2.65-5.35). CONCLUSION: Many patients know that the law requires hospitals to provide care. This knowledge is associated with more frequent ED use. EMTALA changes might reduce ED use, but broader policy implications should be considered.

Non-experimental studies in air medical research.

This article is the 17th in a multipart series designed to assist readers, particularly novices, in the area of clinical research. This article is focused on the process of developing a new research project. It provides tools to help those involved in beginning their own research projects.