Female Stroke

Stroke ◽  
2021 ◽  
Vol 52 (2) ◽  
pp. 406-415
Author(s):  
Anna K. Bonkhoff ◽  
André Karch ◽  
Ralph Weber ◽  
Jürgen Wellmann ◽  
Klaus Berger
Keyword(s):  
Sex Differences ◽  
Hospital Mortality ◽  
Functional Outcome ◽  
Intravenous Thrombolysis ◽  
Time Interval ◽  
Stroke Severity ◽  
Stroke Registry ◽  
Logistic Regression Models ◽  
Female Patients ◽  
Favorable Functional Outcome

Background and Purpose: Men and women are differently affected by acute ischemic stroke (AIS) in many aspects. Prior studies on sex disparities were limited by moderate sample sizes, varying years of data acquisition, and inconsistent inclusions of covariates leading to controversial findings. We aimed to analyze sex differences in AIS severity, treatments, and early outcome and to systematically evaluate the effect of important covariates in a large German stroke registry. Methods: Analyses were based on the Stroke Registry of Northwestern Germany from 2000 to 2018. We focused on admission-stroke severity and disability, acute recanalization treatment, and early stroke outcomes. Potential sex divergences were investigated via odds ratio (OR) using logistic regression models. Covariates were introduced in 3 steps: (1) base models (age and admission year), (2) partially adjusted models (additionally corrected for acute stroke severity and recanalization treatment), (3) fully adjusted models (additionally adjusted for onset-to-admission time interval, prestroke functional status, comorbidities, and stroke cause). Models were separately fitted for the periods 2000 to 2009 and 2010 to 2018. Results: Data from 761 106 patients with AIS were included. In fully adjusted models, there were no sex differences with respect to treatment with intravenous thrombolysis (2000–2009: OR, 0.99 [95% CI, 0.94–1.03]; 2010–2018: OR, 1.0 [0.98–1.02]), but women were more likely to receive intraarterial therapy (2010–2018: OR, 1.12 [1.08–1.15]). Despite higher disability on admission (2000–2009: OR, 1.10 [1.07–1.13]; 2010–2018: OR, 1.09 [1.07–1.10]), female patients were more likely to be discharged with a favorable functional outcome (2003–2009: OR, 1.05 [1.02–1.09]; 2010–2018: OR, 1.05 [1.04–1.07]) and experienced lower in-hospital mortality (2000–2009: OR, 0.92 [0.86–0.97]; 2010–2018: OR, 0.91 [0.88–0.93]). Conclusions: Female patients with AIS have a higher chance of receiving intraarterial treatment that cannot be explained by clinical characteristics, such as age, premorbid disability, stroke severity, or cause. Women have a more favorable in-hospital recovery than men because their higher disability upon admission was followed by a lower in-hospital mortality and a higher likelihood of favorable functional outcome at discharge after adjustment for covariates.

scholarly journals Sex differences in risk factors, treatment, and prognosis in acute stroke

2020 ◽  
Vol 16 ◽  
pp. 174550652095203
Author(s):  
Solveig Dahl ◽  
Clara Hjalmarsson ◽  
Björn Andersson
Keyword(s):  
Risk Factors ◽  
Sex Differences ◽  
Acute Stroke ◽  
Functional Outcome ◽  
Independent Living ◽  
University Hospital ◽  
Stroke Severity ◽  
Stroke Registry ◽  
Study Population

Objectives: Stroke is a major cause of long-term disability and death worldwide. Several studies have shown that women in general have more severe symptoms at arrival to hospital and are less likely to return home and independent living. Our aim with the present study was to update previous results concerning sex differences in baseline characteristics, stroke management, and outcome in a population study from Sahlgrenska University Hospital, Gothenburg, Sweden. Methods: This study included patients with acute ischemic and hemorrhagic stroke in 2014 at Sahlgrenska University Hospital. All data were collected from The Swedish National Stroke Registry (Riksstroke). Results: The study population consisted of 1453 patients, with 46.7% females. Women were 5 years older than men. There was no sex difference in acute stroke severity. Frequency of revascularization was equal between men and women. The stroke mortality rate was the same between the sexes. At 3-months follow-up, women had a worse functional outcome and a higher frequency of depression and post-stroke fatigue. Conclusion: Our results show that there are no sex differences in management of acute stroke. However, the cause of worse functional outcome in women at 3-months follow-up, independent of other risk factors, is not clear and warrants further investigations.

scholarly journals Intravenous Thrombolysis by Telestroke in the 3- to 4.5-h Time Window

2021 ◽  
Vol 12 ◽  
Author(s):  
Erik Simon ◽  
Matin Forghani ◽  
Andrij Abramyuk ◽  
Simon Winzer ◽  
Claudia Wojciechowski ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Intracerebral Hemorrhage ◽  
Hospital Mortality ◽  
Functional Outcome ◽  
Hospital Discharge ◽  
Time Window ◽  
Intravenous Thrombolysis ◽  
Short Term ◽  
Discharge Disposition ◽  
Favorable Functional Outcome

Background: While intravenous thrombolysis (IVT) in ischemic stroke can be safely applied in telestroke networks within 3 h from symptom onset, there is a lack of evidence for safety in the expanded 3- to 4. 5-h time window. We assessed the safety and short-term efficacy of IVT in acute ischemic stroke (AIS) in the expanded time window delivered through a hub-and-spoke telestroke network.Methods: Observational study of patients with AIS who received IVT at the Stroke Eastern Saxony Telemedical Network between 01/2014 and 12/2015. We compared safety data including symptomatic intracerebral hemorrhage (sICH; according to European Cooperative Acute Stroke Study II definition) and any intracerebral hemorrhage (ICH) between patients admitted to telestroke spoke sites and patients directly admitted to a tertiary stroke center representing the hub of the network. We also assessed short-term efficacy data including favorable functional outcome (i.e., modified Rankin Scale ≤ 2) and National Institutes of Health Stroke Scale (NIHSS) at discharge, hospital discharge disposition, and in-hospital mortality.Results: In total, 152 patients with AIS were treated with IVT in the expanded time window [spoke sites, n = 104 (26.9%); hub site, n = 48 (25.9%)]. Patients treated at spoke sites had less frequently a large vessel occlusion [8/104 (7.7) vs. 20/48 (41.7%); p < 0.0001], a determined stroke etiology (p < 0.0001) and had slightly shorter onset-to-treatment times [210 (45) vs. 228 (58) min; p = 0.02] than patients who presented to the hub site. Both cohorts did not display any further differences in demographics, vascular risk factors, median baseline NIHSS scores, or median baseline Alberta stroke program early CT score (p > 0.05). There was no difference in the frequency of sICH (4.9 vs. 6.3%; p = 0.71) or any ICH (8.7 vs. 16.7%; p = 0.15). Neither there was a difference regarding favorable functional outcome (44.1 vs. 39.6%; p = 0.6) nor median NIHSS [3 (5.5) vs. 2.5 (5.75); p = 0.92] at discharge, hospital discharge disposition (p = 0.28), or in-hospital mortality (9.6 vs. 8.3%; p = 1.0). Multivariable modeling did not reveal an association between telestroke and sICH or favorable functional outcome (p > 0.05).Conclusions: Delivery of IVT in the expanded 3- to 4.5-h time window through a telestroke network appears to be safe with equivalent short-term functional outcomes for spoke-and-hub center admissions.

scholarly journals Effect of bridging with intravenous thrombolysis on cognitive function in stroke thrombectomy – An analysis of the German Stroke Registry

2020 ◽  
Author(s):  
Philipp Ettelt ◽  
Ilko Maier ◽  
Marlena Schnieder ◽  
Mathias Bähr ◽  
Daniel Behme ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Cognitive Function ◽  
Functional Outcome ◽  
Intravenous Thrombolysis ◽  
Vessel Occlusion ◽  
Cerebral Vessel ◽  
Stroke Registry ◽  
Positive Effects ◽  
Favorable Functional Outcome ◽  
Moca Score

Abstract Background The targeted use of endovascular therapy (EVT), with or without intravenous thrombolysis (IVT) in acute large cerebral vessel occlusion stroke (LVOS) has been proven to be superior compared to IVT alone. Despite favorable functional outcome, many patients complain about cognitive decline after EVT. If IVT in addition to EVT has positive effects on cognitive function is unclear. Methods We analyzed data from the German Stroke Registry (GSR, an open, multicenter and prospective observational study) and compared cognitive function 90 days after index ischemic stroke using MoCA in patients with independent (mRS≤2 pts) and excellent (mRS=0 pts) functional outcome receiving combined EVT and IVT (EVT+IVT) vs. EVT alone (EVT-IVT). Results Of the 2636 GSR patients, we included 166 patients with mRS≤2 at 90 days in our analysis. Of these, 103 patients (62%) received EVT+IVT, 63 patients (38%) were treated with EVT alone. There was no difference in reperfusion status between groups (mTICI≥2b in both groups at 95%, p=0.65). Median MoCA score in the EVT+IVT group was 20 pts (18-25 IQR) vs. 18 pts (16-21 IQR) in the EVT-IVT group (p=0.014). There were more patients with cognitive impairment (defined as MoCA < 26 pts) in the EVT-IVT group (54 patients (86%)) compared to the EVT+IVT group (78 patients (76%)). EVT+IVT was associated with a higher MoCA score at 90 days (mRS≤2: p=0.033, B=2.39; mRS=0: p=0.021, B=4.38). Conclusions In Patients with good functional outcome after LVOS, rates of cognitive impairment are lower with combined EVT and IVT compared to EVT alone.

Intravenous thrombolysis in stroke with admission NIHSS score 0 or 1

2021 ◽  
pp. 174749302199196
Author(s):  
Marek Sykora ◽  
Stefan Krebs ◽  
Florentina Simader ◽  
Thomas Gattringer ◽  
Stefan Greisenegger ◽  
...  
Keyword(s):  
Functional Outcome ◽  
Intravenous Thrombolysis ◽  
Neurological Deterioration ◽  
Stroke Severity ◽  
Stroke Patients ◽  
Poor Functional Outcome ◽  
Stroke Registry ◽  
Excellent Outcome ◽  
Early Neurological Deterioration ◽  
Symptomatic Intracerebral Haemorrhage

Background Up to 30% of stroke patients initially presenting with non-disabling or mild deficits may experience poor functional outcome. Despite, intravenous thrombolysis remains controversial in this subgroup of stroke patients due to its uncertain risk benefit ratio. Aim We aimed to analyze the real-world experience with intravenous thrombolysis in stroke patients presenting with very low NIHSS. Methods Data of stroke patients presenting with mild initial stroke severity (NIHSS 0–5) including vascular risk factors, stroke syndrome and etiology, early neurological deterioration, symptomatic intracerebral haemorrhage (sICH), and functional outcome by modified Rankin Scale were extracted from a large nationwide stroke registry and analysed. Patients were categorized and compared according to admission severity NIHSS 0–1 versus NIHSS 2–5 and intravenous thrombolysis use. Results Seven hundred and three (2%) of 35,113 patients presenting with NIHSS 0–1 and 6316 (13.9%) of 45,521 of patients presenting with NIHSS 2–5 underwent intravenous thrombolysis. In the NIHSS 0–1 group, intravenous thrombolysis was associated with early neurological deterioration (adjusted OR 8.84, CI 6.61–11.83), sICH (adjusted OR 9.32, CI 4.53–19.15) and lower rate of excellent outcome (mRS 0–1) at three months (adjusted OR 0.67, CI 0.5–0.9). In stroke patients with NIHSS 2–5, intravenous thrombolysis was associated with early neurological deterioration (adjusted OR 1.7, 1.47–1.98), sICH (adjusted OR 5.75, CI 4.45–7.45), and higher rate of excellent outcome (mRS 0–1) at three months (adjusted OR 1.21, CI 1.08–1.34). Conclusions Among patients with NIHSS 0–1, intravenous thrombolysis did not increase the likelihood of excellent outcome. Moreover, potential signals of harm were observed. Further research seems to be warranted.

scholarly journals Sex Differences and Functional Outcome After Intravenous Thrombolysis

Stroke ◽  
2017 ◽  
Vol 48 (3) ◽  
pp. 699-703 ◽  
Author(s):  
Fianne H. Spaander ◽  
Sanne M. Zinkstok ◽  
Irem M. Baharoglu ◽  
Henrik Gensicke ◽  
Alexandros Polymeris ◽  
...  
Keyword(s):  
Sex Differences ◽  
Functional Outcome ◽  
Intravenous Thrombolysis

How do treatment times impact on functional outcome in stroke patients undergoing thrombectomy in Germany? Results from the German Stroke Registry

2021 ◽  
pp. 174749302098526
Author(s):  
Juliane Herm ◽  
Ludwig Schlemm ◽  
Eberhard Siebert ◽  
Georg Bohner ◽  
Anna C Alegiani ◽  
...  
Keyword(s):  
Functional Outcome ◽  
Odds Ratio ◽  
Intravenous Thrombolysis ◽  
Stroke Patients ◽  
Poor Functional Outcome ◽  
Stroke Registry ◽  
Primary Stroke Center ◽  
Comprehensive Stroke Center ◽  
Stroke Center ◽  
Center Time

Background Functional outcome post-stroke depends on time to recanalization. Effect of in-hospital delay may differ in patients directly admitted to a comprehensive stroke center and patients transferred via a primary stroke center. We analyzed the current door-to-groin time in Germany and explored its effect on functional outcome in a real-world setting. Methods Data were collected in 25 stroke centers in the German Stroke Registry-Endovascular Treatment a prospective, multicenter, observational registry study including stroke patients with large vessel occlusion. Functional outcome was assessed at three months by modified Rankin Scale. Association of door-to-groin time with outcome was calculated using binary logistic regression models. Results Out of 4340 patients, 56% were treated primarily in a comprehensive stroke center and 44% in a primary stroke center and then transferred to a comprehensive stroke center (“drip-and-ship” concept). Median onset-to-arrival at comprehensive stroke center time and door-to-groin time were 103 and 79 min in comprehensive stroke center patients and 225 and 44 min in primary stroke center patients. The odds ratio for poor functional outcome per hour of onset-to-arrival-at comprehensive stroke center time was 1.03 (95%CI 1.01–1.05) in comprehensive stroke center patients and 1.06 (95%CI 1.03–1.09) in primary stroke center patients. The odds ratio for poor functional outcome per hour of door-to-groin time was 1.30 (95%CI 1.16–1.46) in comprehensive stroke center patients and 1.04 (95%CI 0.89–1.21) in primary stroke center patients. Longer door-to-groin time in comprehensive stroke center patients was associated with admission on weekends (odds ratio 1.61; 95%CI 1.37–1.97) and during night time (odds ratio 1.52; 95%CI 1.27–1.82) and use of intravenous thrombolysis (odds ratio 1.28; 95%CI 1.08–1.50). Conclusion Door-to-groin time was especially relevant for outcome of comprehensive stroke center patients, whereas door-to-groin time was much shorter in primary stroke center patients. Clinical Trial Registration: https://clinicaltrials.gov/ct2/show/NCT03356392 . Unique identifier NCT03356392

Abstract 1122‐000084: Does Intravenous Thrombolysis Promote Delayed Reperfusion After Incomplete Mechanical Thrombectomy?

2021 ◽  
Vol 1 (S1) ◽  
Author(s):  
Adnan Mujanovic ◽  
Christoph Kammer ◽  
Christoph C Kurmann ◽  
Lorenz Grunder ◽  
Morin Beyeler ◽  
...  
Keyword(s):  
Perfusion Imaging ◽  
Mechanical Thrombectomy ◽  
Intravenous Thrombolysis ◽  
Functional Independence ◽  
Considerable Proportion ◽  
Time Interval ◽  
Start Time ◽  
Vessel Occlusion ◽  
Stroke Registry

Introduction : The value of intravenous thrombolysis (IVT) in patients eligible for mechanical thrombectomy (MT) remains unclear. We hypothesized that pre‐treatment with and/or ongoing IVT may facilitate reperfusion of distal vessel occlusion after incomplete MT. We evaluated this potential association using follow‐up perfusion imaging. Methods : Retrospective observational analysis of our institution`s stroke registry included patients with incomplete reperfusion after MT, admitted between February 1, 2015 and December 8, 2020. Delayed reperfusion (DR) was defined as the absence of a persistent perfusion deficit on contrast‐enhanced perfusion imaging ⁓24h±12h after the intervention. The association between baseline parameters and the occurrence of DR was evaluated using a logistic regression analyses. To account for possible time‐dependent associations of IVT with DR, additional stratification sets were made based on different time windows between IVT start time and final angiography runs. Results : Among the 378 included patients (median age 73.5, 50.8% female), DR occurred in 226 (59.8%). Atrial fibrillation (aOR 2.53 [95% CI 1.34 ‐ 4.90]), eTICI score (aOR 3.79 [95% CI 2.71 ‐ 5.48] per TICI grade increase), and intervention‐to‐follow‐up time (aOR 1.08 [95% CI 1.04 ‐ 1.13] per hour delay) were associated with DR. Dichotomized IVT strata showed no association with DR (aOR 0.75 [95% CI 0.42 ‐ 1.33]), whereas shorter intervals between IVT start and end of the procedure showed a borderline significant association with DR (OR 2.24 [95% CI 0.98 ‐ 5.43, and OR 2.07 [95% 1.06 – 4.31], for 80 and 100 minutes respectively). Patients with DR had higher rates of functional independence (modified Rankin scale 0–2 at 90 days, DR: 63.3% vs PPD: 38.8%; p<0.01) and longer survival time (at 3 years, DR: 69.2% vs PPD: 45.8%; p = 0.001). Conclusions : There is weak evidence that IVT may favor DR after incomplete MT if the time interval between IVT administration and end of the procedure is short. In general, perfusion follow‐up imaging may constitute a suitable surrogate parameter for evaluating medical rescue strategies after incomplete MT, because a considerable proportion of patients do not experience DR, and there seems to be a close correlation with clinical outcomes.

Abstract 182: "Spot" Sign vs "Dot" Sign as Predictor of Hemorrhagic Stroke Outcomes

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Katherine O Brag ◽  
Erica Jones ◽  
Dominique Monlezun ◽  
Alex George ◽  
Michael Halstead ◽  
...  
Keyword(s):  
Functional Outcome ◽  
Clinical Significance ◽  
Statistical Tests ◽  
Hematoma Expansion ◽  
Poor Functional Outcome ◽  
Spot Sign ◽  
Post Contrast ◽  
Stroke Registry ◽  
Logistic Regression Models

Introduction: Hematoma expansion (HE) is an established predictor of mortality and poor functional outcome after intracerebral hemorrhage (ICH). The computed tomography angiography (CTA) “spot” sign predicts HE and deterioration. The “dot” sign on delayed post-contrast CT (PCCT) has undetermined clinical significance but is thought to represent a slower rate of bleeding than the “spot” sign. We aimed to compare the sensitivity of a “dot” sign with the “spot” sign and establish the clinical significance of the “dot” sign. Methods: Patients with ICH presenting to our center July 2008-May 2013 were identified from our stroke registry. Only patients with baseline CT, CTA and PCCT and follow-up CT 6-36 hours later were included. Patients with clot evacuation between baseline and follow-up CT were excluded. HE was defined as 1) any ≥ 1cc increase and 2) significant ≥ 12.5cc increase or >33% increase in volume. Differences in cohort characteristics were assessed using appropriate statistical tests and sensitivity was calculated from 2x2 tables. Unadjusted logistic regression models were used to investigate the relation of “spot” and “dot” signs with HE and poor functional outcome (discharge mRS 4-6). Results: Of the 210 ICH patients included in the analyses (median age 61, 44.7% female, 66.2% black), 39 (18.5%) patients had a PCCT “dot” sign and 19 (9%) had a CTA “spot” sign. Significant HE occurred in 15% with “dot” sign and 8% with “spot” sign. The PCCT “dot” sign had a sensitivity of 0.52 in predicting significant HE and a sensitivity of 0.69 in predicting discharge mRS 4-6 (compared with 0.24 and 0.30 for “spot” sign, respectively). Patients with a “dot” sign, but without a “spot” sign, had significantly increased odds of any HE (OR 5.7, 95% CI 1.9-17.8, p=0.003), mRS 4-6 (OR 8.1, 95% CI 1.03-64.6, p=0.048), and death (OR 8.1, 95% CI 1.4-48.4, p=0.02), but not significant HE (OR 2.2, 95% CI 0.7-6.7, p=0.15). Conclusions: The PCCT “dot” sign was more sensitive in predicting hematoma expansion than the CTA “spot” sign and predicted hematoma expansion and poor functional outcome even in the absence of the “spot sign.” The utility of PCCT imaging in acute evaluation of ICH patients requires validation, but our study supports clinical relevance of the “dot” sign.

scholarly journals Sex Differences in Ischemic Stroke Outcomes in Patients With Pulmonary Hypertension

2021 ◽  
Author(s):  
Tiberiu A. Pana ◽  
Dana K. Dawson ◽  
Mohamed O. Mohamed ◽  
Fiona Murray ◽  
David L. Fischman ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Sex Differences ◽  
Ischemic Stroke ◽  
Hospital Mortality ◽  
Acute Ischemic Stroke ◽  
Systemic Hypertension ◽  
Stroke Outcomes ◽  
Female Patients ◽  
Prolonged Hospitalization ◽  
The Impact

Background The association between systemic hypertension and cerebrovascular disease is well documented. However, the impact of pulmonary hypertension (PH) on acute ischemic stroke outcomes is unknown despite PH being recognized as a risk factor for acute ischemic stroke. We aimed to determine the association between PH and adverse in‐hospital outcomes after acute ischemic stroke, as well as whether there are sex differences in this association. Methods and Results Acute ischemic stroke admissions from the US National Inpatient Sample between October 2015 and December 2017 were included. The relationship between PH and outcomes (mortality, prolonged hospitalization >4 days, and routine home discharge) was analyzed using logistic regressions adjusting for demographics, comorbidities, and revascularization therapies. Interaction terms between PH and sex and age groups were also included. A total of 221 249 records representative of 1 106 045 admissions were included; 2.9% of patients had co‐morbid PH, and 35.34% of those were male. PH was not associated with in‐hospital mortality (odds ratio [OR], 0.96; 95% CI, 0.86–1.09) but was associated with increased odds of prolonged hospitalization (OR, 1.15; 95% CI, 1.09–1.22) and decreased odds of routine discharge (OR, 0.87; 95% CI, 0.81–0.94) for both sexes. Older patients with PH were significantly less likely to be discharged routinely ( P =0.028) than their younger counterparts. Compared with female patients with PH, men were 31% more likely to die in hospital ( P =0.024). Conclusions PH was not significantly associated with in‐hospital mortality but was associated with prolonged hospitalization and adverse discharge status. Male patients with PH were more likely to die in hospital than female patients.

scholarly journals Developing a multivariable prediction model for functional outcome after reperfusion therapy for acute ischaemic stroke: study protocol for the Targeting Optimal Thrombolysis Outcomes (TOTO) multicentre cohort study

BMJ Open ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. e038180 ◽  
Author(s):  
Elizabeth Holliday ◽  
Thomas Lillicrap ◽  
Timothy Kleinig ◽  
Philip M C Choi ◽  
Jane Maguire ◽  
...  
Keyword(s):  
Cohort Study ◽  
Ischaemic Stroke ◽  
Functional Outcome ◽  
Acute Ischaemic Stroke ◽  
Significant Risk ◽  
Intravenous Thrombolysis ◽  
Reperfusion Therapy ◽  
Stroke Severity ◽  
Local Health ◽  
Predictive Algorithms

IntroductionIntravenous thrombolysis (IVT) with recombinant tissue plasminogen activator (rt-PA) is the only approved pharmacological reperfusion therapy for acute ischaemic stroke. Despite population benefit, IVT is not equally effective in all patients, nor is it without significant risk. Uncertain treatment outcome prediction complicates patient treatment selection. This study will develop and validate predictive algorithms for IVT response, using clinical, radiological and blood-based biomarker measures. A secondary objective is to develop predictive algorithms for endovascular thrombectomy (EVT), which has been proven as an effective reperfusion therapy since study inception.Methods and analysisThe Targeting Optimal Thrombolysis Outcomes Study is a multicenter prospective cohort study of ischaemic stroke patients treated at participating Australian Stroke Centres with IVT and/or EVT. Patients undergo neuroimaging using multimodal CT or MRI at baseline with repeat neuroimaging 24 hours post-treatment. Baseline and follow-up blood samples are provided for research use. The primary outcome is good functional outcome at 90 days poststroke, defined as a modified Rankin Scale (mRS) Score of 0–2. Secondary outcomes are reperfusion, recanalisation, infarct core growth, change in stroke severity, poor functional outcome, excellent functional outcome and ordinal mRS at 90 days. Primary predictive models will be developed and validated in patients treated only with rt-PA. Models will be built using regression methods and include clinical variables, radiological measures from multimodal neuroimaging and blood-based biomarkers measured by mass spectrometry. Predictive accuracy will be quantified using c-statistics and R2. In secondary analyses, models will be developed in patients treated using EVT, with or without prior IVT, reflecting practice changes since original study design.Ethics and disseminationPatients, or relatives when patients could not consent, provide written informed consent to participate. This study received approval from the Hunter New England Local Health District Human Research Ethics Committee (reference 14/10/15/4.02). Findings will be disseminated via peer-reviewed publications and conference presentations.

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