scholarly journals Regular hours vs. on-call endovascular interventions for acute stroke treatment: initial single-center experience by interventional cardiologists

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
K Piayda ◽  
M Hornung ◽  
I Grunwald ◽  
K Sievert ◽  
S Bertog ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Hospital Stay ◽  
Acute Stroke ◽  
Stent Retriever ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Stroke Treatment ◽  
Dose Area Product ◽  
Acute Stroke Treatment ◽  
Area Product

Abstract Background Endovascular treatment for acute stroke with large vessel occlusion became the mainstay therapy but remains limited due to lack of trainees and specialized centers. To offer this therapeutical option to a vast population, interventional cardiologists joined interdisciplinary stroke teams. Because of limited experience, it remains unclear if the timing of the procedure (i.e., regular hours vs. on-call time) may influence quality, time-effectiveness and outcomes. Purpose To investigate if the timing of the procedure (i.e., regular hours vs. on-call time) significantly influences procedural parameters and outcomes of patients undergoing acute endovascular stroke treatment. Methods Consecutive patients undergoing acute endovascular stroke treatment from 07/2012 – 10/2020, treated by cardiologists, were reviewed. Baseline characteristics, procedural aspects and clinical outcomes were retrospectively collected. Cases were divided into two groups, depending on the timing of the procedure: on-call time (OC, i.e., weekend days, public holidays and documented “call in” of the on-call service) vs. regular hours (RH, i.e., all other procedures) and outcomes subsequently compared. Results One-hundred-thirteen consecutive patients underwent endovascular treatment for acute stroke; of those 77 (68.1%) during regular hours and 36 (31.9%) during on-call time. Patients were in their early 70ies and risk factors such as arterial hypertension, diabetes mellitus, dyslipidemia and atrial fibrillation were evenly distributed. Modified Ranking Scale (mRS) at presentation was 5 in both groups and decreased to 3 at discharge. The anterior circulation was most often affected (RH: 90.9% vs. OC: 94.4%, p=0.518) and a stent retriever only strategy commonly chosen (RH: 42.8% vs. OC: 30.5%, p=0.211), followed by a combined approach of stent retriever use and aspiration (RH: 25.9% vs. OC: 27.7%, p=0.752). Door-to-needle time (RH: 0:55h IQR [0:45–1:22] vs. OC: 1:05h IQR [0:54–1:30], p=0.237) and procedure duration (RH: 0:48h IQR [0:30–1:25] vs. OC: 0:58h IQR [0:35–1:46], p=0.214) were comparable. Contrast agent use and radiation time (RH: 17.6 min IQR [11.7–29.3] vs. OC: 17.6 min IQR [12.1–33.6]) did not differ between groups, however patients in the OC group experienced a higher dose area product (RH: 4827mGy cm2 IQR [1567–14092] vs. 12727mGy cm2 [6732–18889], p<0.001). The combined quality endpoint, comprising of TICI IIb/III flow after the procedure, no embolization to new territory and no symptomatic intracranial bleeding during in hospital stay was met in 85.5% of patients in the RH group and 80.5% of the on-call group (p=0.485). Death during in-hospital stay was observed in 22% of patients in the RH group and 11.1% of the OC group (p=0.163). Conclusions Endovascular intervention for acute stroke treatment during on-call time is as effective and safe as if performed during regular hours but associated with a higher dose area product. FUNDunding Acknowledgement Type of funding sources: None.

Abstract TP9: Safety of Endovascular Treatment in Acute Stroke Patients Taking Oral Anticoagulants

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Timo Uphaus ◽  
Oliver C Singer ◽  
Joachim Berkefeld ◽  
Christian H Nolte ◽  
Georg Bohner ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Endovascular Treatment ◽  
Acute Stroke ◽  
Positive Impact ◽  
Therapeutic Option ◽  
Oral Anticoagulants ◽  
Intravenous Thrombolysis ◽  
Vessel Occlusion ◽  
Stroke Treatment ◽  
Male Patients

Introduction: The endovascular treatment (EVT) of cerebral ischemia in the case of large vessel occlusion has been established over recent years. Randomized trials showed a positive impact on the clinical outcome of endovascular treatment in addition to thrombolysis with respect to clinical outcome and safety, so that this therapeutic option will be implemented in future guidelines. The role of EVT in patients treated with oral anticoagulants remains uncertain. Hypothesis: We assessed the hypothesis that application of EVT is safe with regard to the occurrence of intracranial bleeding and clinical outcome in patients taking anticoagulants. Methods: The ENDOSTROKE-Registry is a commercially independent, prospective observational study in 12 stroke centers in Germany and Austria launched in January 2011. An online tool served for data acquisition of pre-specified variables concerning endovascular stroke therapy. Results: Data from 815 patients (median age 70, 57% male) undergoing EVT and known anticoagulation status were analyzed. A total of 85 (median age 76, 52% male) patients (10.4%) took oral anticoagulants prior to EVT. Anticoagulation status as measured with INR was 2.0-3.0 in 24 patients (29%), <2.0 in 52 patients (63%) and above 3.0 in 7 patients (8%) of 83 patients with valid INR data prior to EVT. Patients taking anticoagulants were significantly older (median age 76 vs. 69, p < 0.001). Comparing those patients taking anticoagulants and those not, there were no differences concerning NIHSS at admission (with anticoagulants Median-NIHSS 17 vs. without Median-NIHSS 15, p = 0.492, Mann Whitney Test) and the rate of intracranial hemorrhage after intervention (with anticoagulants 11.8% vs. without 12.2%, p = 0.538). After adjustment for age and NIHSS at admission there were no significant differences between the two groups with regard to good clinical outcome, as measured with the modified ranking scale (mRS, 90d-mRS 0-2, 39.2% of patients not receiving anticoagulants; 25.9% of those receiving anticoagulants). Conclusion: The application of endovascular treatment in patients taking oral anticoagulants is safe and should be considered in acute stroke treatment as an important alternative to contraindicated intravenous thrombolysis.

Abstract TP10: Selection Criteria, Is The Clue To Successful Thrombectomy?

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Pedro Cardona ◽  
Helena Quesada ◽  
Luis Cano ◽  
Lucia Aja ◽  
De Miquel MA. ◽  
...  
Keyword(s):  
Acute Stroke ◽  
Functional Outcome ◽  
Selection Criteria ◽  
Intravenous Thrombolysis ◽  
Correct Selection ◽  
Inclusion Criteria ◽  
Exclusion Criteria ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Stroke Treatment

In our comprehensive stroke center we analyze correct selection criteria to use self-expandable retrievable intracranial stents for acute stroke treatment. The criteria for intervention were the onset of neurological symptoms, a National Institute of Health Stroke Scale Score (NIHSS) ≥9 at presentation, large vessel occlusion stroke demonstrated by angio-CT, and failure of intravenous thrombolysis or exclusion criteria to administrate it. METHODS: We performed an retrospective analysis of 512 consecutive patients with acute ischemic stroke candidates for thrombectomy, from April of 2010 to June of 2012, that met inclusion criteria for intervention. Experienced vascular neurologists selected 171 patients to undergoing endovascular therapy using retrievable stents (Solitaire,Trevo). Successful recanalization results were assessed by follow-up angiography immediately after the procedure (TIMI 2-3/TICI 2b-3 score), and good functional outcome was considered when ≤2 mRankin score (mRS) was achieved at 90 days. RESULTS: A total of 171 patients were treated, 87% with anterior circulation stroke. The mean age was 67.5 years (range 32-87); 58% men. The median NIHSS at presentation was 17 (range 6-26). Recanalization (TICI 2b-3) was achieved in 73% of patients. Symptomatic hemorrhage occurred in 8%. Ninety-day mortality was 19, 5% and good 90-day functional outcome (mRS ≤2) was achieved by 45%. Unsuccessful recanalization (TICI 0-2a) was a significant predictor of poor outcome (mRS≤2: 9%). When we analyzed these patients according to inclusion criteria of IMS trial, 101 patients who met strict criteria achieved good neurological outcome more frequently (51% versus 34%) and significant lower mortality rates (17% vs 28%) compared with the group of 70 patients with IMS exclusion criteria. CONCLUSIONS: Efficacy in recanalization, safety of thrombectomy and its consequent good clinical outcome is sufficiently established. It is important an experienced vascular neurologist to select possible candidates (proportion of evaluated/treated patients 3:1). Inclusion criteria for acute stroke trials do not always represent real population of stroke patients as well as their clinical results.

Combined use of contact aspiration and the stent retriever technique versus stent retriever alone for recanalization in acute cerebral infarction: the randomized ASTER 2 study protocol

2020 ◽  
Vol 12 (5) ◽  
pp. 471-476 ◽  
Author(s):  
Bertrand Lapergue ◽  
Julien Labreuche ◽  
Raphaël Blanc ◽  
Gaultier Marnat ◽  
Arturo Consoli ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Cerebral Infarction ◽  
Endovascular Treatment ◽  
Scale Score ◽  
Stent Retriever ◽  
Large Vessel Occlusion ◽  
First Line ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Combined Use

RationaleMechanical thrombectomy (MT) using a stent retriever (SR) device is currently the recommended treatment in ischemic stroke due to anterior circulation large vessel occlusion. Combining contact aspiration (CA) with SR is a promising new treatment, although it was not found to be superior to SR alone as first-line treatment for achieving successful reperfusion.AimTo determine whether endovascular treatment combining first-line use of CA and SR is more efficient than SR alone.MethodsThe ASTER 2 clinical trial is a prospective, randomized, multicenter, open-label trial with a blinded endpoint. We included patients admitted with suspected anterior circulation ischemic stroke secondary to large vessel occlusion <8 hours from symptom onset. They were randomly allocated in a 1:1 ratio to one of two treatment groups (combined CA and SR or SR alone). In the case of failure of the assigned technique after three attempts, other adjunctive techniques were applied.Study outcomeThe primary outcome is the rate of successful/complete reperfusion (modified Thrombolysis In Cerebral Infarction (mTICI) score 2c/3) after the entire endovascular procedure. Secondary outcomes include reperfusion rates after the assigned first-line intervention alone and at the end of the procedure, procedural times, change in NIH Stroke Scale score at 24 hours, intracerebral hemorrhage at 24 hours, procedure-related serious adverse events, the modified Rankin Scale score, and all-cause mortality at 90 days and 1 year. The cost effectiveness of the two procedures will also be analyzed.DiscussionThis is the first head-to-head randomized trial to directly compare the efficacy of the combined use of CA and SR versus SR alone. This prospective trial aims to demonstrate the synergistic effects of CA and SR devices in first-line endovascular treatment.

Abstract T P26: Predictors of Clinical and Angiographic Outcomes in Acute Stroke Treatment: Subgroup Analysis From the Star Study

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Vitor Mendes Pereira ◽  
Rene Chapot ◽  
Antoni Davalos ◽  
Alain Bonafé ◽  
Carlos Castano ◽  
...  
Keyword(s):  
Acute Stroke ◽  
Clinical Outcomes ◽  
Subgroup Analysis ◽  
Conscious Sedation ◽  
High Volume ◽  
Anaesthetic Management ◽  
Anterior Circulation ◽  
Stroke Treatment ◽  
Stent Retrievers ◽  
Acute Stroke Treatment

Endovascular acute stroke treatment (AIS) has changed dramatically last years. Stent retrievers are progressively substituting other devices and old practices like intra-arterial thrombolysis. We present the subgroup analysis of the largest prospective multicentre study using stent retrievers on the treatment of AIS. The study was realized in 14 high volume and experienced stroke centres in Europe, Canada and Australia. 202 patients harbouring anterior circulation occlusions were included within 8 hours after onset. All procedures were performed with balloon guiding catheter. We observed that the occlusion location did not change the successful (TICI 2b or 3) recanalization rates (ICA - 76.5% and MCA - 86.4%: p=0.187) or good clinical outcomes (mRS 0-2) (ICA - 47.2% and MCA - 61.3%: p=0.137). However, it was significant when we considered excellent (mRS 0-1) outcomes only (ICA - 25% and MCA - 47.5%: p=0.016). There were no differences concerning the previous use of rtPA on the angiographic (TICI scores) (p=1.0) or clinical (mRS) (p=0.564) outcomes. The anaesthetic management also did not influence the revascularization (p=0.7) or patient’s status (p=0.343). Angiographic collateral status determined using the ASITN/SIR grading system was significantly correlated to good clinical outcomes (Grades 0-2 and Grades3-4, p=0.034). Also the time from the stroke onset to groin puncture influence clinical progress (0-3h, 3-4.5h, over 4.5h: p=0.002). Multivariate regression analysis on prediction of good outcomes was significant for age (OR-0.93 (0.89, 0.97)), baseline NIHSS (OR-0.87(0.79, 0.96)), absence of haemorrhage (OR-5.01 (1.65, 15.16)), time to treatment (OR-0.62(0.45-0.83)) procedure performed under conscious sedation (OR4.83(1.78,13.11)) and successful recanalization (OR-3.37(1.12,10.14)). Early and efficient revascularization is ideal situation for AIS. Conscious sedation can save time for endovascular procedure using a stent retriever in experienced centers.

009 The ambulance clinical triage-for acute stroke treatment (ACT-FAST) algorithmic pre-hospital triage tool for endovascular thrombectomy: ongoing paramedic validation

2018 ◽  
Vol 89 (6) ◽  
pp. A5.1-A5
Author(s):  
Henry Zhao ◽  
Lauren Pesavento ◽  
Edrich Rodrigues ◽  
Patrick Salvaris ◽  
Karen Smith ◽  
...  
Keyword(s):  
Acute Stroke ◽  
Validation Study ◽  
Fast Algorithm ◽  
Predictive Value ◽  
Vessel Occlusion ◽  
Royal Melbourne Hospital ◽  
Endovascular Thrombectomy ◽  
Stroke Treatment ◽  
Class 1 ◽  
Acute Stroke Treatment

IntroductionThe ambulance clinical triage-for acute stroke treatment (ACT-FAST) algorithm is a severity based 3-step paramedic triage tool for pre-hospital recognition of large vessel occlusion (LVO), designed to improve specificity and paramedic assessment reliability compared to existing triage scales. ACT-FAST sequentially assesses 1. Unilateral arm fall to stretcher <10 s; 2a. Severe language disturbance (right arm weak), or 2b. Severe gaze deviation/hemi-neglect assessed by shoulder tap (left arm weak); 3. Clinical eligibility questions. We present the results of the ongoing Ambulance Victoria paramedic validation study.MethodsAmbulance Victoria paramedics assessed ACT-FAST in all suspected stroke patients pre-hospital in metropolitan Melbourne, Australia, and in the Royal Melbourne Hospital Emergency Department since July 2017. Algorithm results were validated against a comparator of ICA/M1 occlusion on CT-angiography with NIHSS ≥6 (Class 1 indications for endovascular thrombectomy).ResultsData were available from n=119 assessments (ED n=68, pre-hospital n=51). Patient diagnoses were LVO n=20 (15.6%), non-LVO infarcts n=45 (38.5%), ICH n=10 (8.3%) and no stroke on imaging n=44 (37.6%). ACT-FAST showed 85% sensitivity, 88.9% specificity, 60.7% (72% excluding ICH) positive predictive value and 96.7% negative predictive value for LVO. Of 10 false-positives, 4 received thrombectomy for non-Class 1 indications (basilar/M2 occlusions/cervical dissection), 3 were ICH, and 1 was tumour. Three false-negatives were LVO with milder syndromes.DiscussionThe ongoing ACT-FAST algorithm validation study shows high accuracy for clinical recognition of LVO. The streamlined algorithmic approach with just two examination items provides a more practical option for implementation in large emergency service networks. Accurate pre-hospital recognition of LVO will allow bypass to endovascular centres and early activation of neuro-intervention services to expedite endovascular thrombectomy.

DEVT: A randomized, controlled, multicenter trial of direct endovascular treatment versus standard bridging therapy for acute stroke patients with large vessel occlusion in the anterior circulation – Protocol

2020 ◽  
pp. 174749302092534
Author(s):  
Zhongming Qiu ◽  
Hansheng Liu ◽  
Fengli Li ◽  
Weidong Luo ◽  
Deping Wu ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Acute Stroke ◽  
Multicenter Trial ◽  
Large Vessel ◽  
Large Vessel Occlusion ◽  
Stroke Patients ◽  
Bridging Therapy ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Randomized Controlled

Background Eight randomized controlled trials have consistently shown that endovascular treatment plus best medical treatment improves outcome after acute anterior proximal intracranial large vessel occlusion strokes. Whether intravenous thrombolysis prior to endovascular treatment in patients with anterior circulation, large vessel occlusion is of any additional benefits remains unclear. Objective This study compares the safety and efficacy of direct endovascular treatment versus intravenous recombinant tissue-type plasminogen activator bridging with endovascular treatment (bridging therapy) in acute stroke patients with intracranial internal carotid artery or middle cerebral artery-M1 occlusion within 4.5 h of symptom onset. Methods and design The DEVT study is a randomized, controlled, multicenter trial with blinded outcome assessment. This trial uses a five-look group-sequential non-inferiority design. Up to 194 patients in each interim analysis will be consecutively randomized to direct endovascular treatment or bridging therapy group in 1:1 ratio over three years from about 30 hospitals in China. Outcomes The primary end-point is the proportion of independent neurological function defined as modified Rankin scale score of 0 to 2 at 90 days. The primary safety measure is symptomatic intracerebral hemorrhage at 48 h and mortality at 90 days. Trial registry number ChiCTR-IOR-17013568 ( www.chictr.org.cn ).

scholarly journals Is the Efficacy of Endovascular Treatment for Acute Ischemic Stroke Sex-Related

2017 ◽  
Vol 7 (1-2) ◽  
pp. 42-47 ◽  
Author(s):  
Andreia Carvalho ◽  
André Cunha ◽  
Tiago Gregório ◽  
Ludovina Paredes ◽  
Henrique Costa ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Acute Stroke ◽  
Real World ◽  
Intravenous Thrombolysis ◽  
Functional Independence ◽  
Recent Analysis ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Real World Setting ◽  
Different Response

Background: Several reports refer to differences in stroke between females and males, namely in incidence and clinical outcome, but also in response to treatments. Driven by a recent analysis of the MR CLEAN trial, which showed a higher benefit from acute stroke endovascular treatment (EVT) in males, we intended to determine if clinical outcomes after EVT differ between sexes, in a real-world setting. Methods: We analyzed 145 consecutive patients submitted to EVT for anterior circulation large-vessel occlusion, between January 2015 and September 2016, and compared the outcomes between sexes. Results: Our population was represented by 81 (55.9%) females, with similar baseline characteristics (pre-stroke disability, baseline NIHSS, and ASPECTS), rate of previous intravenous thrombolysis, time from onset to recanalization, and rate of revascularization; with the exception that women were on average 4 years older and had more hypertension, and men in turn had more tandem occlusions and atherosclerotic etiology (all p < 0.05). Even after adjusting for these statistically significant variables and for intravenous thrombolysis (as some studies advocate a different response to this treatment between sexes), there were no differences in intracranial hemorrhage, functional independence (mRS ≤2 in 60.9% males vs. 66.7% in females, p = 0.48; adjusted p = 0.36), or mortality at 3 months. Conclusion: In a real-world setting, we found no sex differences in clinical and safety outcomes after acute stroke EVT. Our results support the idea that women are equally likely to achieve good outcomes as men after acute stroke EVT.

Effect of mode of anesthesia on radiation exposure in patients undergoing endovascular recanalization of anterior circulation embolic stroke

2019 ◽  
Vol 12 (5) ◽  
pp. 455-459 ◽  
Author(s):  
Felix Hemmerich ◽  
Charlotte S Weyland ◽  
Silvia Schönenberger ◽  
Peter A Ringleb ◽  
Markus A Möhlenbruch ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Retrospective Analysis ◽  
Anterior Circulation ◽  
Stroke Treatment ◽  
Dose Area Product ◽  
Endovascular Recanalization ◽  
Institutional Review ◽  
Comprehensive Stroke Center ◽  
Stroke Center ◽  
Area Product

PurposeTo determine the effect of general anesthesia (GA) versus conscious sedation (CS) on radiation exposure (RE), procedure time (PT), and fluoroscopy time (FT) in patients receiving endovascular stroke treatment (EST) for large vessel occlusions (LVOs) in the anterior circulation.MethodsRetrospective analysis of an institutional review board−approved prospective stroke database of a comprehensive stroke center focusing on RE (as dose area product (DAP) in Gy.cm², median (IQR)), PT, and FT (in minutes, median (IQR)) in patients receiving EST for LVOs of the anterior circulation according to the mode of anesthesia during the intervention.ResultsOverall 544 patients were included in this analysis (GA: n=143, CS: n=401). For all included LVOs in the anterior circulation PTs (GA: 69 (44–100); CS: 59 (37–99); p=0.235), FTs (GA: 33 (20–56); CS: 29 (16–51); p=0.286), and RE (DAP, GA: 116.23 (73.47–173.41); CS: 110.5 (68.35–184.65); p=0.929) were comparable. In a subgroup analysis of occlusions of the middle cerebral artery (M1-segment; GA: n=80/544, 14.7%; CS: n=211/544, 38.8%), PTs (GA: 69 (37–101); CS: 54 (35 – 89); p=0.223), FTs (GA: 33 (19–55); CS: 25 (14–48); p=0.264), and RE (DAP, GA: 110.91 (66.8–169.12); CS: 103.8 (63.17–181); p=0.893) were similar.ConclusionIn this retrospective analysis, no effect of the mode of anesthesia on the radiation exposure during EST was detected as GA and CS showed comparable PT, FT, and DAPs.

Abstract 88: No Disparities in Acute Stroke Treatment in Kaiser Stroke EXPRESS Program

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Jeffrey G Klingman ◽  
Meghan Hatfield ◽  
Lauren Klingman ◽  
Benjamin Wilson ◽  
Mai N Nguyen-Huynh ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Acute Stroke ◽  
Healthcare System ◽  
Age Groups ◽  
Stroke Care ◽  
Acute Stroke Care ◽  
Vessel Occlusion ◽  
Stroke Treatment ◽  
Acute Stroke Treatment ◽  
Iv Tpa

Background: Prior published studies reported disparities in timely treatment with tPA for stroke patients who were older, African American or female. In 2015, Kaiser Permanente Northern California (KPNC) redesigned its acute stroke care work flow for the entire region, which included immediate evaluation by a stroke neurologist via video, an expedited IV tPA treatment program, rapid CT angiographic investigation, and expedited transfer of appropriate patients with large vessel occlusion (LVO) for endovascular stroke treatment (EST). We sought to evaluate whether disparities exist in acute stroke treatment within the redesigned process. Methods: KPNC is an integrated health care system with 21 certified stroke centers serving 3.9+ millions members. All centers implemented the new program by January 2016. Using clinical data from 1/1/16 to 7/10/16, we evaluated the frequency of IV tPA administration by gender, race, and age groups after implementation of the new process. We performed multivariate analysis with age, gender, race-ethnicity, Kaiser membership, mode of ED arrival (by ambulance vs. private transportation) to assess for any disparities in achieving DTN time. Results: Post implementation, we found no significant differences in the rates of IV t-pa administration in eligible patients based on race, gender, age category (<40 years, 40-64, 65-79, ≥80), Kaiser membership, or mode of ED arrival. In multivariate analysis for factors influencing DTN time, no differences were seen for DTN time <60 minutes. Age (OR=1.02, 95% CI 1.00-1.03, p=0.03) and arrival by ambulance (OR=5.01, 95% CI 3.01-8.60, p<0.001) were associated with a faster DTN time of <30 minutes. Conclusions: Thus far, we have found no disparities in the use of IV tPA or DTN time for a large integrated healthcare system after implementation of the Stroke EXPRESS program. A consistent standardized approach to acute stroke care may help to reduce disparities on the basis of race, gender, age, or even membership in healthcare system.

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