Abstract
PurposeOverutilization of neuroimaging in the emergency department (ED), especially CT angiogram of the head and neck (CTAHN) examinations, contributes to rising health care expenditures, exposes patients to radiation, and may result in delays in care. We evaluated the rate of CTAHN overutilization for patients with nonfocal neurologic complaints in the ED and its potential association with patient clinical data, demographic data, and ED provider type. MethodsThis study was retrospective, was approved by an institutional review board, and was performed at a single institution, spanning a 6-year period. ED patients with nonfocal neurologic complaints who had a CTAHN examination with no history of trauma, recent surgery, or intracranial malignancy were included. Each CTAHN examination was categorized into one of four groups (0 = negative, 1 = chronic findings not related to presentation, 2 = nonacute and/or nonemergent findings or findings that may account for the presentation, and 3 = acute and/or emergent findings that may account for the presentation). Basic demographic data including patient age, patient sex, ordering ED provider type (attending, resident, nonphysician practitioner [(NPP]) were collected and analyzed using a multiple logistic regression analysis. ResultsA total of 960 CTAHN examinations were reviewed. The mean age of patients was 50 years (SD = 18 years), with 63% female patients and 37% male patients. Headache was the most frequent presentation (76%). A total of 75% of cases were negative, and 7% had chronic imaging findings not related to their ED presentation. A total of 12.5% of cases had nonacute and/or nonemergent findings possibly related to the presentation, and only 5.5% had acute and/or emergent findings related to ED presentation. A significantly greater proportion of CTAHN examinations ordered by NPPs, followed by the proportion ordered by ED residents, were negative or had no findings related to the patient presentation, and these patients were ultimately discharged to home. DiscussionA total of 82% of ED CTAHN examinations performed for patients with nonfocal neurologic complaints had no actionable findings. These examinations are significantly more likely to be ordered by NPPs and ED residents.
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More From: Journal of the American College of Radiology : JACR
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