Stroke · 2020
Compliance With Imaging Guidelines for Workup of Transient Ischemic Attack: Evidence From the Nationwide Emergency Department Sample.
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Timpone Vincent M, Jensen Alexandria, Poisson Sharon N, Trivedi Premal S
Аннотация
BACKGROUND AND PURPOSE: Multiple societal guidelines recommend urgent brain and neurovascular imaging in patients with transient ischemic attack (TIA) to identify and treat risk factors that may lead to future stroke. The purpose of this study was to evaluate whether national imaging utilization for workup of TIA complies with society guidelines.
METHODS: Analysis utilized the Nationwide Emergency Department Sample. Primary analysis was performed on a 2017 cohort, and secondary trend analysis was performed on cohorts from 2006 to2017. Patients diagnosed and discharged from emergency departments with TIA were identified using International Classification of Diseases, Ninth Revision and Tenth Revision codes. Brain and neurovascular imaging obtained during the encounter was identified using Current Procedural Terminology codes. Demographics, health insurance, patient income, and hospital-type covariates were analyzed using a hierarchical multivariable logistic regression analysis to identify predictors of obtaining neurovascular imaging during an emergency department encounter.
RESULTS: In 2017, there were 167 999 patients evaluated and discharged from emergency departments with TIA. The percentage of patients receiving brain and neurovascular imaging was 78.5% and 43.2%, respectively. The most common imaging workup utilized was a solitary computed tomography-brain without any neurovascular imaging (30.9% of encounters). Decreased odds of obtaining neurovascular imaging was observed in Medicaid patients (odds ratio, 0.65 [95% CI, 0.58-0.74]), rural hospitals (odds ratio, 0.26 [95% CI, 0.17-0.41]), nontrauma centers (odds ratio, 0.40 [95% CI, 0.21-0.74]), and weekend encounters (odds ratio, 0.91 [95% CI, 0.85-0.96]). Trend analysis demonstrated a steady rise in brain and neurovascular imaging in 2006 from 34.9% and 6.8% of encounters, respectively, to 78.5% and 43.2% of encounters in 2017.
CONCLUSIONS: Compliance with imaging guidelines is improving; however, the majority of TIA patients discharged from the emergency department do not receive recommended neurovascular imaging during their encounter. Follow-up studies are needed to determine whether delayed or incomplete vascular screening increases the risk of future stroke.
METHODS: Analysis utilized the Nationwide Emergency Department Sample. Primary analysis was performed on a 2017 cohort, and secondary trend analysis was performed on cohorts from 2006 to2017. Patients diagnosed and discharged from emergency departments with TIA were identified using International Classification of Diseases, Ninth Revision and Tenth Revision codes. Brain and neurovascular imaging obtained during the encounter was identified using Current Procedural Terminology codes. Demographics, health insurance, patient income, and hospital-type covariates were analyzed using a hierarchical multivariable logistic regression analysis to identify predictors of obtaining neurovascular imaging during an emergency department encounter.
RESULTS: In 2017, there were 167 999 patients evaluated and discharged from emergency departments with TIA. The percentage of patients receiving brain and neurovascular imaging was 78.5% and 43.2%, respectively. The most common imaging workup utilized was a solitary computed tomography-brain without any neurovascular imaging (30.9% of encounters). Decreased odds of obtaining neurovascular imaging was observed in Medicaid patients (odds ratio, 0.65 [95% CI, 0.58-0.74]), rural hospitals (odds ratio, 0.26 [95% CI, 0.17-0.41]), nontrauma centers (odds ratio, 0.40 [95% CI, 0.21-0.74]), and weekend encounters (odds ratio, 0.91 [95% CI, 0.85-0.96]). Trend analysis demonstrated a steady rise in brain and neurovascular imaging in 2006 from 34.9% and 6.8% of encounters, respectively, to 78.5% and 43.2% of encounters in 2017.
CONCLUSIONS: Compliance with imaging guidelines is improving; however, the majority of TIA patients discharged from the emergency department do not receive recommended neurovascular imaging during their encounter. Follow-up studies are needed to determine whether delayed or incomplete vascular screening increases the risk of future stroke.