https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 A phase III, multi-arm multi-stage covariate-adjusted response-adaptive randomized trial to determine optimal early mobility training after stroke (AVERT DOSE) https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51317  2) and hemorrhagic stroke. With four arms per stratum (reference arm retained throughout), only the single treatment arm demonstrating the highest proportion of favorable outcomes at the first stage will proceed to the second stage in each stratum, resulting in a final comparison with the reference arm. Three prognostic covariates of age, geographic region and reperfusion interventions, as well as previously observed mRS 0-2 responses inform the adaptive randomization procedure. Participants randomized receive prespecified mobility training regimens (functional task-specific), provided by physiotherapists/nurses until discharge or 14 days. Interventions replace usual mobility training. Fifty hospitals in seven countries (Australia, Malaysia, United Kingdom, Ireland, India, Brazil, Singapore) are expected to participate. Summary: Our novel adaptive trial design will evaluate a wider variety of mobility regimes than a traditional two-arm design. The data-driven adaptions during the trial will enable a more efficient evaluation to determine the optimal early mobility intervention for patients with mild and moderate ischemic stroke.]]> Wed 28 Feb 2024 15:05:25 AEDT ]]> Association of Endovascular Thrombectomy With Functional Outcome in Patients With Acute Stroke With a Large Ischemic Core. https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47319 70mL. We aimed to compare outcomes of EVT and non-EVT patients with an ischemic core≥70mL, hypothesizing that there would be a benefit from EVT for fair outcome (three-month modified Rankin Scale, mRS, 0-3) after stroke. METHODS: Retrospective analysis of patients enrolled into a multi-center (Australia, China and Canada) registry (2012-2020) who underwent CTP within 24 hours of stroke onset and had a baseline ischemic core≥70mL. Primary outcome was the estimation of the association of EVT in patients with core volume ≥70mL, as well as within 70-100mL and ≥100mL subgroups with fair outcome. RESULTS: Of the 3283 patients in the registry, 299 had CTP core≥70 mL and 269 complete data (135 had core volume between 70-100mL and 134≥100mL). EVT was performed in 121(45%) patients. EVT-treated patients were younger (median 69 versus 75 years; p=0.011), had lower pre-stroke mRS, and smaller median core volumes, 92[79-116.5]mL versus 105.5[85.75-138]mL, (p=0.004). EVT-treated patients had higher odds of achieving fair outcome in adjusted analysis (30% versus 13.9% in the non-EVT group; aOR 2.1(95% CI 1, 4.2), p=0.038). The benefit was seen predominantly in those with 70-100mL core (71 /135 (52.6%) EVT-treated), with 54.3% in EVT-treated versus 21% in non-EVT group achieving a fair outcome (aOR 2.5 (95% CI 1, 6.2), p=0.005). Of those with a core≥100mL, 50 /134(37.3%) underwent EVT. Proportions of fair outcome were very low in both groups (8.1% versus 8.7%; p=0.908). DISCUSSION: We found a positive association of EVT with 3-month outcome after stroke in patients with a baseline CTP ischemic core volume 70-100 mL but not in those with ≥100 mL. Randomized data to confirm these findings is required. CLASSIFICATION OF EVIDENCE: This study provides Class III evidence that EVT is associated with better motor outcomes 3 months following CTP-defined ischemic stroke with core of 70-100 mL.]]> Fri 13 Jan 2023 11:06:45 AEDT ]]>