Pathway Design for Acute Stroke Care in the Era of Endovascular Thrombectomy

The efficacy of intravenous thrombolysis and endovascular thrombectomy (EVT) for acute ischemic stroke is highly time dependent. Optimal organization of acute stroke care is therefore important to reduce treatment delays but has become more complex after the introduction of EVT as regular treatment for large vessel occlusions. There is no singular optimal organizational model that can be generalized to different geographic regions worldwide. Current dominant organizational models for EVT include the drip-and-ship- and mothership model. Guidelines recommend routing of suspected patients with stroke to the nearest intravenous thrombolysis capable facility; however, the choice of routing to a certain model should depend on regional stroke service organization and individual patient characteristics. In general, design approaches for organizing stroke care are required, in which 2 key strategies could be considered. The first entails the identification of interventions within existing organizational models for optimizing timely delivery of intravenous thrombolysis and/or EVT. This includes adaptive patient routing toward a comprehensive stroke center, which focuses particularly on prehospital triage tools; bringing intravenous thrombolysis or EVT to the location of the patient; and expediting services and processes along the stroke pathway. The second strategy is to develop analytical or simulation model-based approaches enabling the design and evaluation of organizational models before their implementation. Organizational models for acute stroke care need to take regional and patient characteristics into account and can most efficiently be assessed and optimized through the application of model-based approaches.

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Effect of the COVID-19 pandemic on acute stroke reperfusion therapy: data from the Lyon Stroke Center Network

10.21203/rs.3.rs-56553/v1 ◽

2020 ◽

Author(s):

Cécile PLUMEREAU ◽

Tae-Hee CHO ◽

Marielle BUISSON ◽

Camille AMAZ ◽

Matteo CAPPUCCI ◽

...

Keyword(s):

Acute Stroke ◽

Control Period ◽

Intravenous Thrombolysis ◽

Stroke Care ◽

Reperfusion Therapy ◽

Acute Stroke Care ◽

Emergency Medical Dispatch ◽

Comprehensive Stroke Center ◽

Stroke Center ◽

The Impact

Abstract BackgroundThe coronavirus disease 2019 (COVID-19) pandemic would have particularly affected acute stroke care. However, its impact is clearly inherent to the local stroke network conditions. We aimed to assess the impact of COVID-19 pandemic on acute stroke care in the Lyon comprehensive stroke center during this period.MethodsWe conducted a prospective data collection of patients with acute ischemic stroke (AIS) treated with intravenous thrombolysis (IVT) and/or mechanical thrombectomy (MT) during the COVID-19 period (from 29/02/2020 to 10/05/2020) and a control period (from 29/02/2019 to 10/05/2019). The volume of reperfusion therapies and pre and intra-hospital delays were compared during both periods.ResultsA total of 208 patients were included. The volume of IVT significantly decreased during the COVID-period (55 (54.5%) vs 74 (69.2%); p=0.03) and was mainly due to time delay among patients treated with MT. The volume of MT remains stable over the two periods (72 (71.3%) vs 65 (60.8%); p=0.14) but the door-to-groin puncture time increased in patients transferred for MT (237 [187-339] vs 210 [163-260]; p<0.01). The daily number of Emergency Medical Dispatch calls considerably increased (1502 [1133-2238] vs 1023 [960-1410]; p<0.01).ConclusionsOur study showed a decrease of the volume of IVT, whereas the volume of MT remained stable although intra-hospital delays increased for transferred patients during the COVID-19 pandemic. These results contrast in part with the national surveys and suggest that the impact of the pandemic may depend on local stroke care networks.

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Acute Stroke Care during the COVID-19 Pandemic: Reduction in the Number of Admissions of Elderly Patients and Increase in Prehospital Delays

Cerebrovascular Diseases ◽

10.1159/000514140 ◽

2021 ◽

pp. 1-7

Author(s):

Gabriel Velilla-Alonso ◽

Andrés García-Pastor ◽

Ángela Rodríguez-López ◽

Ana Gómez-Roldós ◽

Antonio Sánchez-Soblechero ◽

...

Keyword(s):

Elderly Patients ◽

Acute Stroke ◽

Time Course ◽

Intravenous Thrombolysis ◽

Stroke Care ◽

Acute Stroke Care ◽

Group Data ◽

Radiological Data ◽

History Of ◽

Prehospital Delays

Introduction: We analyzed whether the coronavirus disease 2019 (COVID-19) crisis affected acute stroke care in our center during the first 2 months of lockdown in Spain. Methods: This is a single-center, retrospective study. We collected demographic, clinical, and radiological data; time course; and treatment of patients meeting the stroke unit admission criteria from March 14 to May 14, 2020 (COVID-19 period group). Data were compared with the same period in 2019 (pre-COVID-19 period group). Results: 195 patients were analyzed; 83 in the COVID-19 period group, resulting in a 26% decline of acute strokes and transient ischemic attacks (TIAs) admitted to our center compared with the previous year (p = 0.038). Ten patients (12%) tested positive for PCR SARS-CoV-2. The proportion of patients aged 65 years and over was lower in the COVID-19 period group (53 vs. 68.8%, p = 0.025). During the pandemic period, analyzed patients were more frequently smokers (27.7 vs. 10.7%, p = 0.002) and had less frequently history of prior stroke (13.3 vs. 25%, p = 0.043) or atrial fibrillation (9.6 vs. 25%, p = 0.006). ASPECTS score was lower (9 [7–10] vs. 10 [8–10], p = 0.032), NIHSS score was slightly higher (5 [2–14] vs. 4 [2–8], p = 0.122), onset-to-door time was higher (304 [93–760] vs. 197 [91.25–645] min, p = 0.104), and a lower proportion arrived within 4.5 h from onset of symptoms (43.4 vs. 58%, p = 0.043) during the COVID-19 period. There were no differences between proportion of patients receiving recanalization treatment (intravenous thrombolysis and/or mechanical thrombectomy) and in-hospital delays. Conclusion: We observed a reduction in the number of acute strokes and TIAs admitted during the COVID-19 period. This drop affected especially elderly patients, and despite a delay in their arrival to the emergency department, the proportion of patients treated with recanalization therapies was preserved.

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The Dutch Acute Stroke Audit: Benchmarking acute stroke care in the Netherlands

European Stroke Journal ◽

10.1177/2396987318787695 ◽

2018 ◽

Vol 3 (4) ◽

pp. 361-368 ◽

Cited By ~ 8

Author(s):

Laurien S Kuhrij ◽

Michel WJM Wouters ◽

Renske M van den Berg-Vos ◽

Frank-Erik de Leeuw ◽

Paul J Nederkoorn

Keyword(s):

Acute Stroke ◽

Best Practice ◽

Intravenous Thrombolysis ◽

Stroke Care ◽

Favourable Outcome ◽

Hospital Level ◽

Acute Stroke Care ◽

Related Factors ◽

Variation In Care

Introduction In the nationwide Dutch Acute Stroke Audit (DASA), consecutive patients with acute ischaemic stroke (AIS) and intracranial haemorrhage (ICH) are prospectively registered. Acute stroke care is a rapidly evolving field in which intravenous thrombolysis (IVT) and intra-arterial thrombectomy (IAT) play a crucial role in increasing odds of favourable outcome. The DASA can be used to assess the variation in care between hospitals and develop ‘best practice’ in acute stroke care. Patients and methods: We describe the initiation and design of the DASA as well as the results from 2015 and 2016. Results In 2015 and 2016, 55,854 patients with AIS and 7727 patients with ICH were registered in the DASA. Treatment with IVT was administered to 10,637 patients (with an increase of 1.3% in 2016) and 1740 patients underwent IAT (with an increase of 1% in 2016). Median door-to-needle time for IVT and median door-to-groin time for IAT have decreased from 27 to 25 min and 66 to 64 min, respectively. Mortality during admission was 4.9% in patients with AIS, whereas 26% of patients with ICH died. Modified Rankin Scale score at three months was registered in 49% of AIS patients and 45% of ICH patients. Discussion During the nationwide DASA, time to treatment is reduced for IVT as well as IAT. With the rapidly evolving treatment of acute stroke care, the DASA can be used to monitor the quality provided on patient- and hospital level. Conclusion Increasing completeness of registration of the outcome, in combination with adjustment for patient-related factors, is necessary to define and further improve the quality of the acute stroke care.

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Letter by Morelli et al Regarding Article, “Acute Stroke Care Is at Risk in the Era of COVID-19: Experience at a Comprehensive Stroke Center in Barcelona”

Stroke ◽

10.1161/strokeaha.120.031124 ◽

2020 ◽

Vol 51 (11) ◽

Author(s):

Nicola Morelli ◽

Paolo Immovilli ◽

Donata Guidetti

Keyword(s):

At Risk ◽

Acute Stroke ◽

Stroke Care ◽

Acute Stroke Care ◽

Comprehensive Stroke Center ◽

Stroke Center

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Abstract TMP8: Predictors of Large Vessel Occlusion in Kaiser Stroke EXPRESS Program

Stroke ◽

10.1161/str.48.suppl_1.tmp8 ◽

2017 ◽

Vol 48 (suppl_1) ◽

Author(s):

Jeffrey G Klingman ◽

Anne C Kim ◽

Meghan Hatfield ◽

Benjamin Wilson ◽

Lauren Klingman ◽

...

Keyword(s):

Acute Stroke ◽

Patient Characteristics ◽

Stroke Care ◽

Large Vessel ◽

Large Vessel Occlusion ◽

Acute Stroke Care ◽

Kaiser Permanente ◽

Vessel Occlusion ◽

Stroke Treatment ◽

Improved Outcomes

Background: In 2015, trials showed that rapid endovascular stroke treatment (EST) of qualified patients with large vessel occlusion (LVO) resulted in improved outcomes over treatment with IV tPA alone. In 2015, Kaiser Permanente Northern California (KPNC) redesigned its acute stroke care work flow for its 21 stroke centers, which included expedited IV t-pa treatment, rapid CTA investigation, expedited transfer of appropriate patients for EST. We assessed for predictors of LVO post-implementation. Methods: The KPNC Stroke EXPRESS program was live in all centers by January 2016. Using clinical data for 1/1/16 - 7/10/16, we evaluated the frequency and locations of LVO, and patient characteristics of those with LVO. Multivariate logistic regression was used to examine whether age, gender, race, or an NIHSS ≥ 8 are predictors of LVO. Results: There were 2,204 tele-stroke alert cases from the ED. Among 993 (39.3%) that proceeded as likely acute stroke, 812 (81.8%) were evaluated with CTA. Out of those who had a CTA, 152 (18.7%) were found to have LVO as followed: 27 (17.8%) ICA, 87 (57.2%) M1, 24 (15.8%) M2, 6 (4.0%) basilar, 5 (3.3%) PCA, and 3 (2.0%) vertebral. Of those with LVO, 97 (63.8%) were treated with EST. Patients with LVO had a higher median NIHSS (15 vs. 5 in those without LVO). Neglect (27% vs. 7%) and gaze deviation (16% vs. 1%) were more likely to be seen among those with LVO and treated with EST compared to those without LVO. In multivariate analysis, age (OR=1.02, 95% CI 1.00 - 1.03, p=0.01) and NIHSS ≥8 (OR = 4.99, 95% CI 3.32- 7.49, p < 0.001) were associated with LVO. PPV for NIHSS ≥8 was 75.7%. Conclusions: In our large multi-ethnic population of acute stroke patients, a relatively small percentage (19%) was found to have LVO and only a subset qualified for EST. Predictors of LVO included NIHSS ≥8, increasing age, and presence of neglect and gaze preference. Given the low numbers of patients brought in for acute stroke treatment who ended up with a LVO requiring EST, further research is needed to assess a given system’s ability to rapidly evaluate and transfer as appropriate for EST rather than paramedic based diversion.

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Maintenance of Acute Stroke Care Service During the COVID-19 Pandemic Lockdown

Stroke ◽

10.1161/strokeaha.120.032176 ◽

2021 ◽

Vol 52 (5) ◽

pp. 1693-1701

Author(s):

Valerian L. Altersberger ◽

Lotte J. Stolze ◽

Mirjam R. Heldner ◽

Hilde Henon ◽

Nicolas Martinez-Majander ◽

...

Keyword(s):

Ischemic Stroke ◽

Acute Stroke ◽

Performance Measures ◽

Care Service ◽

Intravenous Thrombolysis ◽

Stroke Care ◽

National Institutes Of Health ◽

Reference Period ◽

Acute Stroke Care ◽

Symptomatic Intracranial Hemorrhage

Background and Purpose: Timely reperfusion is an important goal in treatment of eligible patients with acute ischemic stroke. However, during the coronavirus disease 2019 (COVID-19) pandemic, prehospital and in-hospital emergency procedures faced unprecedented challenges, which might have caused a decline in the number of acute reperfusion therapy applied and led to a worsening of key quality measures for this treatment during lockdown. Methods: This prospective multicenter cohort study used data from the TRISP (Thrombolysis in Ischemic Stroke Patients) registry of patients with acute ischemic stroke treated with reperfusion therapies, that is, intravenous thrombolysis or endovascular therapy. We compared prehospital and in-hospital time-based performance measures (stroke-onset-to-admission, admission-to-treatment, admission-to-image, and image-to-treatment time) during the first 6 weeks after announcement of lockdown (lockdown period) with the same period in 2019 (reference period). Secondary outcomes included stroke severity (National Institutes of Health Stroke Scale) after 24 hours and occurrence of symptomatic intracranial hemorrhage (following the ECASS [European-Australasian Acute Stroke Study]-II criteria). Results: Across 20 stroke centers, 540 patients were treated with intravenous thrombolysis/endovascular therapy during lockdown period compared with 578 patients during reference period (−7% [95% CI, 5%–9%]). Performance measures did not change significantly during the lockdown period (2020/2019 minutes median: onset-to-admission 133/145; admission-to-treatment 51/48). Same was true for admission-to-image (20/19) and image-to-treatment (31/30) time in patients with available time of first image (n=871, 77.9%). Median National Institutes of Health Stroke Scale on admission (2020/2019: 11/11) and after 24 hours (2020/2019: 6/5) and percentage of symptomatic intracranial hemorrhage (2020/2019: 6.2/5.7) did not differ significantly between both periods. Conclusions: The COVID-19 pandemic lockdown resulted in a mild decline in the number of patients with stroke treated with acute reperfusion therapies. More importantly, the solid stability of key quality performance measures between the 2020 and 2019 period may indicate resilience of acute stroke care service during the lockdown, at least in well-established European stroke centers.

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Cohort profile: Thrombolysis in Ischemic Stroke Patients (TRISP): a multicentre research collaboration

BMJ Open ◽

10.1136/bmjopen-2018-023265 ◽

2018 ◽

Vol 8 (9) ◽

pp. e023265 ◽

Cited By ~ 3

Author(s):

Jan F Scheitz ◽

Henrik Gensicke ◽

Sanne M Zinkstok ◽

Sami Curtze ◽

Marcel Arnold ◽

...

Keyword(s):

Ischemic Stroke ◽

Acute Stroke ◽

Functional Outcome ◽

Research Collaboration ◽

Intravenous Thrombolysis ◽

Stroke Patients ◽

Acute Stroke Care ◽

Laboratory Findings ◽

Endovascular Thrombectomy ◽

Multicentre Research

PurposeThe ThRombolysis in Ischemic Stroke Patients (TRISP) collaboration aims to address clinically relevant questions about safety and outcomes of intravenous thrombolysis (IVT) and endovascular thrombectomy. The findings can provide observational information on treatment of patients derived from everyday clinical practice.ParticipantsTRISP is an open, investigator-driven collaborative research initiative of European stroke centres with expertise in treatment with revascularisation therapies and maintenance of hospital-based registries. All participating centres made a commitment to prospectively collect data on consecutive patients with stroke treated with IVT using standardised definitions of variables and outcomes, to assure accuracy and completeness of the data and to adapt their local databases to answer novel research questions.Findings to dateCurrently, TRISP comprises 18 centres and registers >10 000 IVT-treated patients. Prior TRISP projects provided evidence on the safety and functional outcome in relevant subgroups of patients who were excluded, under-represented or not specifically addressed in randomised controlled trials (ie, pre-existing disability, cervical artery dissections, stroke mimics, prior statin use), demonstrated deficits in organisation of acute stroke care (ie, IVT during non-working hours, effects of onset-to-door time on onset-to-needle time), evaluated the association between laboratory findings on outcome after IVT and served to develop risk estimation tools for prediction of haemorrhagic complications and functional outcome after IVT.Future plansFurther TRISP projects to increase knowledge of the effect and safety of revascularisation therapies in acute stroke are ongoing. TRISP welcomes participation and project proposals of further centres fulfilling the outlined requirements. In the future, TRISP will be extended to include patients undergoing endovascular thrombectomy.

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Abstract T P37: Routine CT Angiography in Acute Stroke Does Not Delay Acute Stroke Care

Stroke ◽

10.1161/str.46.suppl_1.tp37 ◽

2015 ◽

Vol 46 (suppl_1) ◽

Author(s):

Gisele S Silva ◽

Renata C Miranda ◽

Rodrigo M Massaud ◽

Andreia M Vacari ◽

Miguel Cendoroglo Neto

Keyword(s):

Ischemic Stroke ◽

Acute Stroke ◽

Acute Ischemic Stroke ◽

Intravenous Thrombolysis ◽

Stroke Care ◽

Tertiary Hospital ◽

Acute Stroke Care ◽

Time Intervals ◽

Radiology Report ◽

Group 2

Introduction: Vascular imaging is increasingly used for diagnosis of arterial occlusions in acute ischemic stroke. Hypothesis:We hypothesized that time intervals using a CTA based acute ischemic stroke protocol are not increased when compared to an earlier non-CTA based protocol. Methods: We evaluated a database of consecutive patients admitted to a Brazilian tertiary hospital with acute ischemic stroke from February 2009 to March 2014 and reviewed our stroke quality measures data to determine if the time required to obtain CTA prolonged door-to-neuroimaging, door to radiology report and door-to-needle times. Patients were categorized into: Group 1 (February 2009 to October 2013) (Non-contrast CT Scan based acute stroke protocol) and Group 2 (November 2013 to August 2014) (CTA based acute stroke protocol). Time intervals were compared between the two groups.Results: We evaluated 415 consecutive patients, 20 of whom (4.8%) had a CTA in the acute phase (Group 2). Patients in groups 1 and 2 had similar onset-to-door times (1.86 [0.75-3.58] versus 2.75 hours [1.0-8.49], p=0.09); door to neuroimaging times (27.6 [18.6-46.8] versus 37.8 minutes [23.4-46.2], p=0.28 ) and door to radiology report intervals (39 [27-60.6] versus 53.4 minutes[35.4-61.2], p=0.09). The frequency of treatment with recanalization therapies ( either intravenous thrombolysis or endovascular procedures) was similar between groups 1 (30%) and 2 (21%), p=0.33, as well as door to needle times (p=0.09). Conclusions: CTA based acute stroke care does not significantly delay time to neuroimaging or thrombolysis in routine clinical practice.

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Abstract MP24: Pitfalls of Mobile Stroke Treatment Unit - A Single Center Review

Stroke ◽

10.1161/str.52.suppl_1.mp24 ◽

2021 ◽

Vol 52 (Suppl_1) ◽

Author(s):

Mangala Gopal ◽

Ciaran Powers ◽

Shahid M Nimjee ◽

Sharon Heaton ◽

Vivien Lee

Keyword(s):

Intravenous Thrombolysis ◽

Stroke Care ◽

Final Diagnosis ◽

Acute Stroke Care ◽

Treatment Unit ◽

Stroke Treatment ◽

The Mean ◽

Suspected Stroke ◽

Comprehensive Stroke Center ◽

Stroke Center

Introduction: Although Mobile Stroke Treatment Units (MSTU) can reduce time to intravenous thrombolysis (IVtPA), limitations in MSTU care have not been well described. Methods: We retrospectively reviewed consecutive patients transported by MSTU to our academic comprehensive stroke center (CSC) from May 2019 to August 2020 for suspected stroke to assess for potential limitations of care. The Columbus MSTU is owned by a separate health system, but represents a collaborative venture with 3 CSCs and the Columbus Division of Fire, operating daily from 7am-7pm. Data was abstracted on demographics, clinical presentation, last known normal (LKN) time, initial National Institutes of Health Stroke Scale (NIHSS), neuroimaging, and IVtPA administration. Results: Among 93 patients transported to our CSC by MSTU, the mean age was 65 years (range, 21-93) and 61 (66%) were female. The mean initial NIHSS was 7.1 (range, 0 to 33) and 52 (55.9%) had a final diagnosis of stroke (4 hemorrhagic, 48 ischemic). IVtPA was administered in 15 (16.1%) with a mean LKN to IVtPA time of 120 minutes (range, 41 to 243). Among 15 patients treated with IVtPA, 10 received IVtPA in MSTU and 5 in CSC ED. In 7 patients who underwent thrombectomy, mean door to groin time was 57 minutes (range, 28 to 88). Among the overall group, 9 (9.7%) cases were identified with limitations in MSTU care, including 2 patients who received IVtPA by MSTU that were more than 10% off from ideal dosing (underdosed by 9mg and overdosed by 21mg), 1 warfarin-associated hemorrhage requiring intubation who did not receive reversal in MSTU but did upon arrival to CSC ED, and 5 patients who received IVtPA after arrival to CSC ED. The reasons for withholding IVtPA included inability to confirm LKN, patient declination, lack of translator, incorrect LKN, and seizure requiring intubation. The LKN to IVtPA time was significantly longer in the ED compared to MSTU (197 vs 82 minutes, p <0.0001). Conclusion: In our series of suspected stroke patients evaluated by MSTU, gaps identified within MSTU acute stroke care were related to limitations of resources and included errors in weight-based IVtPA dosing, inability to administer IVtPA, or reversal for anti-coagulation related hemorrhage. Clinicians need to be aware of potential pitfalls of MSTU evaluation.

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Malpractice litigation in acute stroke care – where are we now?

Medico-Legal Journal ◽

10.1177/0025817217750494 ◽

2018 ◽

Vol 86 (3) ◽

pp. 134-139 ◽

Cited By ~ 2

Author(s):

Gilberto KK Leung ◽

Gerard Porter

Keyword(s):

Acute Stroke ◽

Scientific Evidence ◽

Intravenous Thrombolysis ◽

Stroke Care ◽

Healthcare Personnel ◽

Acute Stroke Care ◽

The United Kingdom ◽

Legal Implications ◽

Legal Challenges ◽

Improvement Measures

Acute stroke care has undergone momentous changes in recent years with the introduction of intravenous thrombolysis, mechanical thrombectomy and integrated stroke services. While these are welcome developments, they also carry unique medico-legal challenges. In 2015, a patient from Greater Manchester was awarded over £1 million in compensation after ambulance paramedics failed to admit her to a specialist unit. This paper explores the medico-legal implications of this first but over looked thrombolysis-related claim in the United Kingdom. It is submitted that the highly time-dependent and multidisciplinary nature of acute stroke care may expose a host of healthcare personnel, both medical and non-medical, to risks of legal pursuit for failing to provide appropriate care, and that available scientific evidence will likely support such claims. The situation calls for an urgent and concerted effort at implementing improvement measures at national levels. A reminder of the legal consequences of substandard acute stroke care is timely and necessary.

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