scholarly journals LO61: Geographic variation in Transient Ischemic Attack (TIA)/minor stroke care in Alberta emergency departments (EDs)

CJEM ◽  
2017 ◽  
Vol 19 (S1) ◽  
pp. S49
Author(s):  
M. Leong ◽  
E. Lang ◽  
S.D. Coutts ◽  
J. Stang ◽  
D. Wang ◽  
...  

Introduction: The risk of recurrent stroke following a transient ischemic attack (TIA) has been estimated to be as much as 5 percent in the first 48 hours and ten percent in the first week following initial TIA symptoms, but can be modified as a result of intensive risk factor management. Care pathways for these patients vary between different regions within Alberta with Edmonton admitting more TIA patients and Calgary using computed tomography angiography (CTA) based triage. To examine regional differences in the quality of care, the rate of admission for stroke within 90 days of an index ED visit for TIA/minor stroke was investigated. Methods: Data analysts from the Data Integration, Measurement and Reporting (DIMR) branch of Alberta Health Services (AHS) used the National Ambulatory Care Reporting System (NACRS) to identify patients in Alberta who were admitted for stroke within 90-days of an index emergency department (ED) visit for TIA/minor stroke from April 2010 to March 2016. Information extracted included patient demographics, region of residence (Edmonton, Calgary or non-major urban [NMU]), return diagnosis and timing of return ED visit. Analysis included descriptive summaries and proportions were compared using a χ2 test. Results: During the study period, there were 26,232 index visits to Alberta EDs for TIA/minor stroke. 5426 (26.1%) of patients were admitted on their index visit. Calgary (22.5%) had lower rates of admission on index visit followed by Edmonton (31.4%) and the NMU (46%). 20,806 (79.3%) were discharged home following their index visit. Of the patients discharged on their index visit 729 (3.5%) had an admission for stroke within 90-days of their index ED visit with rates in Edmonton (3.8%) and the NMU regions (3.8%) being significantly higher than Calgary (2.8%, p<0.01). Conclusion: Our study demonstrates significantly lower rates of admission for stroke within 90-days of ED visit for minor stroke/TIA in Calgary compared to Edmonton and the NMU. Further work should focus on validating this result and consideration of standardized care pathways that promote effective resource utilization and quality of care.

2014 ◽  
Vol 20 (12) ◽  
pp. 1029-1035 ◽  
Author(s):  
Yi-Long Wang ◽  
Yue-Song Pan ◽  
Xing-Quan Zhao ◽  
David Wang ◽  
S Claiborne Johnston ◽  
...  

2018 ◽  
Vol 75 (4) ◽  
pp. 419 ◽  
Author(s):  
Dawn M. Bravata ◽  
Laura J. Myers ◽  
Greg Arling ◽  
Edward J. Miech ◽  
Teresa Damush ◽  
...  

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Joon Hwa Lee ◽  
Hyunjin Jo ◽  
Jihoon Cha ◽  
Woo-Keun Seo ◽  
Oh Young Bang ◽  
...  

Background and purpose: We aimed to investigate the role of perfusion MRI parameters (TTP: time to peak, CBF: cerebral blood flow, CBV: cerebral blood volume) as a prognostic factor for the risk of stroke recurrence or cardiovascular outcome in patients with transient ischemic attack (TIA) or minor stroke. Methods: We retrospectively reviewed TIA or minor stroke patients who underwent our stroke MRI protocol (DWI, perfusion MRI, and MRA) in a consecutively collected stroke registry. Primary outcome was nonfatal stroke recurrence and secondary outcome was cardiovascular composite outcome. Multivariate analysis was used to examine the association of perfusion MRI parameters and angiographic findings with the risk of stroke recurrence and cardiovascular event. Results: Of the 326 patients who met inclusion criteria, we identified 15(4.6%) nonfatal strokes and 25(7.7%) cardiovascular composite events during the first 1 year after the index TIA or minor stroke. The presence of regional delayed perfusion on TTP maps (p=0.002) and regional hyperperfusion on CBV maps (p<0.001) were associated with recurrent stroke. In MRA images, concomitant stenosis of the intracranial arteries and/or extracranial carotid arteries was associated with cardiovascular events (p=0.009). Using multivariate cox proportional hazard analysis, presence of regional hyperperfusion on CBV remained an independent predictor of recurrent stroke (HR 10.82, 95% CI 4.19-38.67, p<0.001) and cardiovascular event (HR 6.30, 95% CI 2.67-18.25, p<0.001). The AUC of the CBV maps was also greater than other parameters for the prediction of stroke recurrence (AUC=0.701, 95% CI 0.54-0.86) and cardiovascular composite outcome (AUC=0.628, 95% CI 0.50-0.76). Conclusions: Increased CBV on perfusion MRI, representing the hemodynamic status of postischemic hyperperfusion, could be more useful than other perfusion parameters in predicting poor prognosis of TIA or minor stroke patients.


2020 ◽  
Author(s):  
Teresa M Damush ◽  
Lauren S. Penney ◽  
Edward J. Miech ◽  
Nicholas A. Rattray ◽  
Sean A. Baird ◽  
...  

Abstract Background: The Protocol-guided Rapid Evaluation of Veterans Experiencing New Transient Neurologic Symptoms (PREVENT) program was a complex quality improvement (QI) intervention targeting transient ischemic attack (TIA) evidence-based care. The aim of this study was to evaluate program acceptability among the QI teams and factors associated with degrees of acceptability.Methods: QI teams from six Veterans Administration facilities participated in active implementation for a one-year period. We employed mixed methods to evaluate program acceptability. Multiple data sources were collected over implementation phases and triangulated for this evaluation. First, we conducted 30 onsite, semi-structured interviews during active implementation with 35 participants at 6 months; 27 interviews with 28 participants at 12 months; and 19 participants during program sustainment. Second, we collected participant automated response survey data during the team kick-off meeting. Third, we conducted debriefing meetings after onsite visits and monthly virtual collaborative calls. All interviews and debriefings were audiotaped, transcribed, and de-identified. De-identified files were qualitatively coded and analyzed for common themes and acceptability patterns. We conducted mixed-methods matrix analyses comparing acceptability by satisfaction ratings and by the Theoretical Framework of Acceptability (TFA). Results: Overall, the QI teams reported the PREVENT program was acceptable. At pre-implementation phase, reviewing quality data, team brainstorming solutions and development of action plans were rated as most useful during the team kickoff meetings. Program acceptability perceptions varied over time across active implementation and after teams accomplished actions plans and moved into sustainment. We observed team acceptability growth over a year of active implementation in concert with the QI team’s self-efficacy to improve quality of care. Guided by the TFA, the QI teams’ acceptability was represented by the respective seven components of the multifaceted acceptability construct.Conclusions: Program acceptability varied by time, by champion role on QI team, by team self-efficacy, and by perceived effectiveness to improve quality of care aligned with the TFA. A complex quality improvement program that fostered flexibility in local adaptation and supported users with access to data, resources, and implementation strategies was deemed acceptable and appropriate by front-line clinicians implementing practice changes in a large, national healthcare organization.Trial Registration: clinicaltrials.gov: NCT02769338


2019 ◽  
Vol 3 (1) ◽  
pp. 36-46
Author(s):  
Jaclyn Myers ◽  
Dawn M. Bravata ◽  
Jason Sico ◽  
Laura Myers ◽  
Seemant Chaturvedi ◽  
...  

2009 ◽  
Vol 7 (10) ◽  
pp. 1273-1281 ◽  
Author(s):  
Philippe Couillard ◽  
Alexandre Y Poppe ◽  
Shelagh B Coutts

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Myles Horton

Background: Transient ischemic attack (TIA) and minor stroke have a high risk of recurrent stroke. We recently showed in the CATCH study that predefined radiographic abnormalities on CT/CTA and MRI predicted recurrent events after TIA and minor stroke. Specifically, the study recognized the predictive value of CT/CTA abnormalities that were defined apriori: acute ischemia on CT, intracranial or extracranial occlusion or stenosis > 50% (the CT/CTA positive metric), and diffusion-weighted imaging positivity on MRI. Aims: To improve upon the CT, CTA, MRI and clinical parameters that predict recurrent events after TIA and minor stroke. Our secondary aim was to explore predictors of stroke progression versus recurrence. Methods: 510 consecutive TIA and minor stroke patients (NIHSS score of <4) had CT/CTA and most had MRI. Primary outcome was recurrent events (combined outcome of stroke progression or distinct recurrent stroke) within 90 days. Imaging parameters not included in the original CATCH imaging (CT/CTA and MRI) metrics were assessed for prediction of recurrent events. We also completed an exploratory analysis comparing predictors of symptom progression versus recurrence. Results: There were 36 recurrent events (36/510, 7.1% (95%CI: 5.0-9.6)) including 19 progression and 17 recurrent strokes. On CT/CTA: white matter disease, prior stroke, aortic arch focal plaque≥4mm, or intraluminal thrombus did not predict recurrent events. On MRI: white matter disease, prior stroke, and microbleeds did not predict recurrent events. The only additional clinical predictor was symptom fluctuation (hazard ratio 2.3; 95% CI: 1.05-5.0). Parameters predicting symptom progression included: ongoing symptoms at initial assessment, symptom fluctuation, intracranial occlusion, intracranial occlusion or stenosis, and the CT/CTA metric. No parameter was strongly predictive of recurrent stroke. Conclusions: There was no imaging parameter that could improve upon our original CT/CTA or MRI metrics to predict recurrent events after TIA and minor stroke. Only the addition of symptom fluctuation to the CT/CTA metric improved the prediction of recurrent events. Imaging was more predictive of symptom progression than distinct recurrent events.


Sign in / Sign up

Export Citation Format

Share Document