Abstract TP372: Outcomes of the Extended Ischemic Stroke Treatment Window

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Michele J Patterson ◽  
Tracy Moore ◽  
Paula Cline ◽  
Lee Birnbaum

Background: After clinical practice guidelines extended the mechanical endovascular reperfusion [MER] window, our Comprehensive Stroke Program expanded its stroke alert [SA] to include last known well [LKW] 6-24 hours [h]. Expansion included implementation of a standardized large vessel screen, RAPID brain imaging software, revised algorithm, EMS and community education, and regional transfer guidelines. Purpose: Evaluate outcomes of the extended window [EW] for ischemic stroke treatment. Method: We reviewed ischemic strokes over a 2 year period and categorized them into two groups: 2017 pre-guideline [PG] and 2018 EW post-guideline [PostG]. Each group was divided into all-MERs and MERs 6-24h. Groups were compared by LKW, NIHSS, TICI scores, complications, discharge [DC] disposition and Modified Rankin Score [mRS] at DC and 90 days [90d]. Outcomes were evaluated to identify the EW impact. Results: Of 744 strokes reviewed, 365 were PG and 379 were EW PostG. LKW 6-24h was greater PostG [22%=PG versus [v] 30%=EW], in all-MERs [19%=PG v 31%=EW] and MERs 6-24h [69%=PG v 83%=EW]. Stroke severity [NIHSS>7] was higher PostG [41%=PG v 45%=EW], in all-MERs [88%=PG v 91%=EW] and MERs 6-24h [85%=PG v 96%=EW]. MER treatment rates increased PostG [13%=PG v 17%=EW]. Post-MER TICI 2b/3 reperfusion rates were higher PostG in all-MERs [63%=PG v 77%=EW] and MERs 6-24h [38%=PG v 71%=EW]. Any complication was lower PostG [27%=PG v 22%=EW] with higher complication rates in MERs 6-24h [15%=PG v 17%=EW]. More patients were DC home PostG [42%=PG v 46%=EW], in all-MERs [25%=PG v 30%=EW], and MERs 6-24h [8%=PG v 29%=EW]. mRS 0-2 at DC was increased PostG [20%=PG v 29%=EW], in all-MERs [12%=PG v 27%=EW], and MERs 6-24h [8%=PG v 34%=EW]. mRS at 90d was increased PostG for all-MERs [25%=PG v 34%=EW] with decreased deaths [15%=PG v 10%=EW]. Conclusion: The EW has increased patients treated and improved overall outcomes. Patients arriving with LKW 6-24h has increased along with stroke severity. Reperfusion rates improved and overall complications were lower, however higher rates were seen in MERs 6-24h. Patients treated in the EW had reductions in post stroke disability, increases in DC to home, and improvements in mRS at DC and 90d.

Stroke ◽  
2020 ◽  
Vol 51 (5) ◽  
pp. 1419-1427 ◽  
Author(s):  
Naoimh E. McMahon ◽  
Munirah Bangee ◽  
Valerio Benedetto ◽  
Emma P. Bray ◽  
Rachel F. Georgiou ◽  
...  

Background and Purpose— Identifying the etiology of acute ischemic stroke is essential for effective secondary prevention. However, in at least one third of ischemic strokes, existing investigative protocols fail to determine the underlying cause. Establishing etiology is complicated by variation in clinical practice, often reflecting preferences of treating clinicians and variable availability of investigative techniques. In this review, we systematically assess the extent to which there exists consensus, disagreement, and gaps in clinical practice recommendations on etiologic workup in acute ischemic stroke. Methods— We identified clinical practice guidelines/consensus statements through searches of 4 electronic databases and hand-searching of websites/reference lists. Two reviewers independently assessed reports for eligibility. We extracted data on report characteristics and recommendations relating to etiologic workup in acute ischemic stroke and in cases of cryptogenic stroke. Quality was assessed using the AGREE II tool (Appraisal of Guidelines for Research & Evaluation). Recommendations were synthesized according to a published algorithm for diagnostic evaluation in cryptogenic stroke. Results— We retrieved 16 clinical practice guidelines and 7 consensus statements addressing acute stroke management (n=12), atrial fibrillation (n=5), imaging (n=5), and secondary prevention (n=1). Five reports were of overall high quality. For all patients, guidelines recommended routine brain imaging, noninvasive vascular imaging, a 12-lead ECG, and routine blood tests/laboratory investigations. Additionally, ECG monitoring (>24 hours) was recommended for patients with suspected embolic stroke and echocardiography for patients with suspected cardiac source. Three reports recommended investigations for rarer causes of stroke. None of the reports provided guidance on the extent of investigation needed before classifying a stroke as cryptogenic. Conclusions— While consensus exists surrounding standard etiologic workup, there is little agreement on more advanced investigations for rarer causes of acute ischemic stroke. This gap in guidance, and in the underpinning evidence, demonstrates missed opportunities to better understand and protect against ongoing stroke risk. Registration— URL: https://www.crd.york.ac.uk/PROSPERO/ ; Unique identifier: CRD42019127822.


2001 ◽  
Vol 19 (11) ◽  
pp. 2886-2897 ◽  
Author(s):  
Thomas J. Smith ◽  
Bruce E. Hillner

PURPOSE: We describe the impact of clinical practice guidelines (CPGs) on improvement in oncology treatment processes or outcomes. METHODS: We performed a comprehensive search of the literature from 1966 to the present and a directed review of the literature. RESULTS: Improvements have been demonstrated in compliance with evidence-based guidelines or evidence-based medicine, and in short-term length of stay, complication rates, and financial outcomes. The data suggest that patient satisfaction can be maintained despite a shorter length of stay. There has been one example of province-wide improvement in disease-free and overall survival of breast cancer patients coincident with the adoption of CPGs. The components of successful guidelines can be summarized as follows: (1) development is based on evidence, with the guideline formulated by key physicians in the group; (2) the guidelines are disseminated to all affected health care professionals for critique; (3) implementation includes direct feedback on performance to physicians or general feedback on system performance; and (4) there is accountability for performance according to the guidelines. This accountability can consist of voluntary peer pressure to conform to evidence-based medicine, and it does not require a financial reward or penalty. CONCLUSION: Some attempts to improve practice have been moderately successful in achievement of reduced health care costs, reduced hospital length of stay, and possibly improved outcomes. Other methods that are still in use have been demonstrated to have little effect. Programs that have not succeeded have relied on voluntary change in practice behavior without incentives to change or have had no accountability component. Further research is needed to assess how guidelines are enacted in organizations other than those demonstrably committed to improvement, ways to improve compliance of health care providers who are not committed to change, and methods to improve accountability.


2016 ◽  
Vol 18 (1) ◽  
pp. 102-113 ◽  
Author(s):  
Keun-Sik Hong ◽  
Sang-Bae Ko ◽  
Kyung-Ho Yu ◽  
Cheolkyu Jung ◽  
Sukh Que Park ◽  
...  

2008 ◽  
Vol 24 (03) ◽  
pp. 333-341 ◽  
Author(s):  
Ma Asunción Navarro Puerto ◽  
Iñaki Gutiérrez Ibarluzea ◽  
Oscar Guzmán Ruiz ◽  
Francisco Moniche Alvarez ◽  
Rocío Gómez Herreros ◽  
...  

Objectives:To catalogue and comparatively assess the quality of Clinical Practice Guidelines (CPG) for ischemic stroke taking into account format and development methodology.Methods:We performed a comprehensive, systematic bibliographic search of CPGs addressing the management of ischemic stroke. We designed a sensitive strategy, using methodological filters in the following databases: Medline, IME and Lilacs, National Guidelines Clearinghouse, National electronic Library for Health, NICE, Guidelines International Network (GIN), Canadian Medical Association Infobase, development groups such as Scottish Intercollegiate Guidelines Network (SIGN), New Zealand Guidelines Group (NZGG), Agency for Healthcare Research and Quality (AHRQ), Ministry of Health Singapore, Institute for Clinical Systems Improvement (ICSI); and scientific societies: American Heart Association, American Medical Association, Royal College of Physicians London. We included all CPGs published in English, French, Italian, Portuguese, or Spanish from 1999 to 2005 and excluded those CPGs whose scope was primary prevention and rehabilitation from ischemic stroke. Four researchers independently assessed the structure and methodologies followed in drafting the CPGs using the Changing Professional Practice (CPP) and Appraisal of Guidelines Research & Evaluation (AGREE) instruments.Results:We retrieved 117 documents; following application of exclusion criteria, twenty-seven CPGs were appraised. With regard to methodological quality (using the AGREE instrument), the domains that scored highest were “Scope and purpose” and “Clarity and presentation.” The lowest scoring domains were “Stakeholder involvement,” “Rigor of development,” and “Applicability.” Most guidelines received an overall score of “would not recommend” (77.8 percent). Finally, based on the CPP instrument, most of the CPGs evaluated were aimed at secondary care and did not provide updating procedures.Conclusions:The overall quality of the CPGs published for ischemic stroke management did not have minimum methodological quality. Quality improvement has been observed in more recent CPGs and may be due to the publication of new tools such as the AGREE or CPP instruments, as well as international initiatives for CPG improvement.


2020 ◽  
Vol 38 (2) ◽  
pp. 77-87 ◽  
Author(s):  
Sang-Bae Ko ◽  
Hong-Kyun Park ◽  
Byung Moon Kim ◽  
Ji Hoe Heo ◽  
Joung-Ho Rha ◽  
...  

Endovascular recanalization therapy (ERT) has been a standard of care for patients with acute ischemic stroke due to large artery occlusion (LAO) within 6 hours after onset since the five landmark ERT trials up to 2015 demonstrated its clinical benefit. Recently, two randomized clinical trials demonstrated that ERT, even in the late time window up to 16 hours or 24 hours after last known normal time, improved the outcome of patients who had a target mismatch defined as either clinical-core mismatch or perfusion-core mismatch, which prompted the update of national guidelines in several countries. Accordingly, to provide evidence-based and up-to-date recommendations for ERT in patients with acute LAO in Korea, the Clinical Practice Guidelines Committee of the Korean Stroke Society decided to revise the previous Korean Clinical Practice Guidelines of Stroke for ERT. For this update, the members of the writing group were appointed by the Korean Stroke Society and the Korean Society of Interventional Neuroradiology. After thorough reviewing the updated evidence from two recent trials and relevant literature, the writing members revised recommendations, for which formal consensus was achieved by convening an expert panel composed of 45 experts from the participating academic societies. The current guidelines are intended to help healthcare providers, patients, and their caregivers make their well-informed decisions and to improve the quality of care regarding ERT. The ultimate decision for ERT in a particular patient must be made in light of circumstances specific to that patient.


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