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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 6 of 6 Research Studies DisplayedPrabhakaran S, Khorzad R, Parnianpour Z
Door-in-door-out process times at primary stroke centers in Chicago.
This study sought to identify modifiable predictors of door-in-door-out times for transfer of acute stroke patients from primary stroke centers to comprehensive stroke centers using 3 Chicago-region primary stroke centers as a model. A retrospective analysis of consecutive patients with acute stroke from February 2018 to January 2020 who required transfer from 1 of 3 primary stroke centers to 1 of 3 affiliated comprehensive stroke centers was conducted. Of 191 total patients, 67.9% arrived by emergency medical services and 57.4% during off-hours. Telestroke was performed in 84.2% of patients, 30.5% received alteplase, and 48.4% underwent a computed tomography (CT) at the primary stroke center. The median door-in-door-out time was 148.5 minutes. The largest contributors to longer door-in-door-out times were CT to CT angiography time, transfer center contact to ambulance request time, ambulance request to arrive time, and transfer ambulance at primary stroke center. Other factors included CT angiography performed at the primary stroke center, walk-in arrival mode, administration of intravenous alteplase request by primary stroke center, and ambulance request by the primary stroke center.
AHRQ-funded; HS025359.
Citation: Prabhakaran S, Khorzad R, Parnianpour Z .
Door-in-door-out process times at primary stroke centers in Chicago.
Ann Emerg Med 2021 Nov;78(5):674-81. doi: 10.1016/j.annemergmed.2021.06.018..
Keywords: Stroke, Cardiovascular Conditions, Healthcare Delivery, Emergency Department
Vaghani V, Wei L, U
Validation of an electronic trigger to measure missed diagnosis of stroke in emergency departments.
Diagnostic errors are major contributors to preventable patient harm. In this study, the investigators validated the use of an electronic health record (EHR)-based trigger (e-trigger) to measure missed opportunities in stroke diagnosis in emergency departments (EDs). The investigators concluded that a symptom-disease pair-based e-trigger identified missed diagnoses of stroke with a modest positive predictive value, underscoring the need for chart review validation procedures to identify diagnostic errors in large data sets.
AHRQ-funded; HS017820; HS024459.
Citation: Vaghani V, Wei L, U .
Validation of an electronic trigger to measure missed diagnosis of stroke in emergency departments.
J Am Med Inform Assoc 2021 Sep 18;28(10):2202-11. doi: 10.1093/jamia/ocab121..
Keywords: Stroke, Cardiovascular Conditions, Emergency Department, Diagnostic Safety and Quality, Medical Errors, Adverse Events
Swanson MB, Miller AC, Ward MM MM
Emergency department telemedicine consults decrease time to interpret computed tomography of the head in a multi-network cohort.
Telemedicine can improve access to emergency stroke care in rural areas, but the benefit of telemedicine across different types and models of telemedicine networks is unknown. The objectives of this study were to (1) identify the impact of telemedicine on ED stroke care, (2) identify if telemedicine impact varied by network, and (3) describe the variation in process outcomes by telemedicine across EDs.
AHRQ-funded; HS025753.
Citation: Swanson MB, Miller AC, Ward MM MM .
Emergency department telemedicine consults decrease time to interpret computed tomography of the head in a multi-network cohort.
J Telemed Telecare 2021 Jul;27(6):343-52. doi: 10.1177/1357633x19877746..
Keywords: Emergency Department, Telehealth, Health Information Technology (HIT), Imaging, Stroke, Cardiovascular Conditions
Zachrison KS, Natsui S, Luan Erfe BM
Language preference does not influence stroke patients' symptom recognition or emergency care time metrics.
The objective of this study was to determine whether acute ischemic stroke (AIS) patients' language preference was associated with differences in time from symptom discovery to hospital arrival, activation of emergency medical services, door-to-imaging time (DTI), and door-to-needle (DTN) time. The investigators concluded that consistent with prior reports examining disparities in care, a systems-based approach to acute stroke prevents differences in hospital-based metrics.
AHRQ-funded; HS024561.
Citation: Zachrison KS, Natsui S, Luan Erfe BM .
Language preference does not influence stroke patients' symptom recognition or emergency care time metrics.
Am J Emerg Med 2021 Feb;40:177-80. doi: 10.1016/j.ajem.2020.10.064..
Keywords: Stroke, Cardiovascular Conditions, Emergency Department, Cultural Competence, Diagnostic Safety and Quality
Jaffe TA, Goldstein JN, Yun BJ
Impact of emergency department crowding on delays in acute stroke care.
This study examined the relationship between emergency department (ED) crowding and timely delivery of emergency stroke care. The authors prospectively collected data from their own institution’s Get with the Guidelines-Stroke registry to identify consecutive acute ischemic stroke patients who came to their urban academic ED from July 2016-August 2018. ED conditions were categorized as normal capacity, high ED crowding, and severe crowding. Of the 1379 patients presenting with ischemic stroke during the study period, 78% presented at normal, 15% during high ED crowding, and 7% during severe crowding times. Outcomes of interest were door-to-imaging (DIT) time. There were no significant delays in stroke care delivery associated with ED crowding.
AHRQ-funded; HS024561.
Citation: Jaffe TA, Goldstein JN, Yun BJ .
Impact of emergency department crowding on delays in acute stroke care.
West J Emerg Med 2020 Jul 8;21(4):892-99. doi: 10.5811/westjem.2020.5.45873..
Keywords: Emergency Department, Stroke, Cardiovascular Conditions, Healthcare Delivery, Quality of Care
Trent SA, Morse EA, Ginde AA
Barriers to prompt presentation to emergency departments in Colorado after onset of stroke symptoms.
Despite significant morbidity and mortality from stroke, patient delays to emergency department (ED) presentation following the onset of stroke symptoms are one of the main contraindications to treatment for acute ischemic stroke (AIS). The objective of this study was to identify patient and environmental factors associated with delayed presentations to the ED after onset of stroke symptoms.
AHRQ-funded; HS022400.
Citation: Trent SA, Morse EA, Ginde AA .
Barriers to prompt presentation to emergency departments in Colorado after onset of stroke symptoms.
West J Emerg Med 2019 Mar;20(2):237-43. doi: 10.5811/westjem.2018.10.38731..
Keywords: Emergency Department, Stroke, Cardiovascular Conditions, Healthcare Delivery