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Background Patients with traumatic intracranial hemorrhage and mild traumatic brain injury (mTIH) receive broadly variable care which often includes transfer to a trauma center, neurosurgery consultation and ICU admission. However, there may be a low risk cohort of patients who can be managed without utilizing such significant resources. Objective Describe mTIH patients who are at low risk of clinical or radiographic decompensation and can be safely managed in an ED observation unit (EDOU). Methods Retrospective evaluation of patients age≥16, GCS≥13 with ICH on CT. Primary outcomes included clinical/neurologic deterioration, CT worsening or need for neurosurgery. Results 1185 consecutive patients were studied. 814 were admitted and 371 observed patients (OP) were monitored in the EDOU or discharged from the ED after a period of observation. None of the OP deteriorated clinically. 299 OP (81%) had a single lesion on CT; 72 had mixed lesions. 120 patients had isolated subarachnoid hemorrhage (iSAH) and they did uniformly well. Of the 119 OP who had subdural hematoma (SDH), 6 had worsening CT scans and 3 underwent burr hole drainage procedures as inpatients due to persistent SDH without new deficit. Of the 39 OP who had cerebral contusions, 3 had worsening CT scans and one required NSG admission. No patient returned to the ED with a complication. Follow-up was obtained on 81% of OP. 2 patients with SDH required burr hole procedure >2weeks after discharge. Conclusions Patients with mTIH, particularly those with iSAH, have very low rates of clinical or radiographic deterioration and may be safe for monitoring in an emergency department observation unit.

Background The Patient Protection and Affordable Care Act supports the establishment of accountable care organizations (ACOs) as care delivery models designed to save costs. The potential for these cost savings has been demonstrated in the primary care and inpatient populations, but not for patients with emergency conditions or traumatic injuries. Methods Our study evaluated adult trauma patients transferred to the tertiary care hospitals of a pioneer ACO, comparing those who were transferred from within the ACO to those from outside the ACO in terms of overall cost of hospitalization. Hospital length of stay and number of imaging studies were predetermined secondary outcomes. Results The study population included 7696 hospitalizations for traumatic injuries over a 5-year period, 85.1% of which were for patients transferred from outside the ACO. Patients transferred from within the ACO had a 7.2% lower overall cost of hospitalization ( P = .032). Mean injury severity scores were not significantly different between groups. Differences in mortality, intensive care unit length of stay, and overall hospital length of stay were not significant. However, analysis of radiology studies performed during the hospitalization revealed that patients transferred from within the ACO had, on average, 0.47 fewer advanced imaging studies per hospitalization than did those transferred from outside the ACO (3.55 vs 4.02 studies per hospitalization, P = .003). Conclusions Adult trauma patients transferred from within an ACO have significantly lower total costs of hospitalization than do those transferred from outside the system, without significant differences in disease burden, hospital length of stay, or mortality.

Introduction Increased use of computed tomography (CT) during injury-related Emergency Department (ED) visits has been reported, despite increased awareness of CT radiation exposure risks. We investigated national trends in the use of chest CT during injury-related ED visits between 2012 and 2015. Methods Analyzing injury-related ED visits from the 2012–2015 United States (U.S.) National Hospital Ambulatory Medical Care Survey (NHAMCS), we determined the percentage of visits that had a chest CT and the diagnostic yield of these chest CTs for clinically-significant findings. We used survey-weighted multivariable logistic regression to determine which patient and visit characteristics were associated with chest CT use. Results Injury-related visits accounted for 30% of the 135 million yearly ED visits represented in NHAMCS. Of these visits, 817,480 (2%) received a chest CT over the study period. The diagnostic yield was 3.88%. Chest CT utilization did not change significantly from a rate of 1.73% in 2012 to a rate of 2.31% in 2015 (p = 0.14). Multivariate logistic regression demonstrated increased odds of chest CT for patients seen by residents versus by attendings (adjusted odds ratio [AOR] 2.08, 95% confidence interval [CI] 1.41–3.08). Patients aged 18–59 and 60+ had higher AORs (5.75, CI 3.44–9.61 and 9.81, CI 5.90–16.33, respectively) than those Conclusions Overall chest CT utilization showed an increased trend from 2012 to 2015, but the results were not statistically significant.