https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Transcranial Doppler in acute stroke management - a 'real-time' bed-side guide to reperfusion and collateral flow https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24270 Wed 11 Apr 2018 14:17:14 AEST ]]> Making clots and breaking clots: modelling arterial occlusion to test stroke sonothrombolysis https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22364 Wed 11 Apr 2018 12:37:43 AEST ]]> Platelet microparticles: a biomarker for recanalization in rtPA-treated ischemic stroke patients https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:33107 Wed 04 Sep 2019 09:55:36 AEST ]]> Tenecteplase in ischemic stroke offers improved recanalization https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:33105 Thu 17 Mar 2022 14:41:28 AEDT ]]> Endovascular equipoise shift in a phase III randomized clinical trial of sonothrombolysis for acute ischemic stroke https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36545 post hoc analysis after excluding subjects that were recruited at centers reporting a decline in the balance of randomization between sonothrombolysis and concurrent endovascular trials. Results: From a total of 676 participants randomized in the CLOTBUST-ER trial we identified 52 patients from 7 centers with perceived equipoise shift in favor of endovascular treatment. Post hoc sensitivity analysis in the intention-to-treat population adjusted for age, National Institutes of Health Scale score at baseline, time from stroke onset to tPA bolus and baseline serum glucose showed a significant (p < 0.01) interaction of perceived endovascular equipoise shift on the association between sonothrombolysis and 3 month functional outcome [adjusted common odds ratio (cOR) in centers with perceived endovascular equipoise shift: 0.22, 95% CI 0.06–0.75; p = 0.02; adjusted cOR for centers without endovascular equipoise shift: 1.20, 95% CI 0.89–1.62; p = 0.24)]. After excluding centers with perceived endovascular equipoise shift, patients randomized to sonothrombolysis had higher odds of 3 month functional independence (mRS scores 0–2) compared with patients treated with tPA only (adjusted OR: 1.53; 95% CI 1.01–2.31; p = 0.04). Conclusion: Our experience in CLOTBUST-ER indicates that increasing implementation of endovascular therapies across major academic stroke centers raises significant challenges for clinical trials aiming to test noninterventional or adjuvant reperfusion strategies.]]> Thu 09 Dec 2021 11:02:10 AEDT ]]> Assessing reperfusion and recanalization as markers of clinical outcomes after intravenous thrombolysis in the echoplanar imaging thrombolytic evaluation trial (EPITHET) https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:8112 90% reduction in magnetic resonance perfusion-weighted imaging lesion volume and recanalization as improvement of MR angiographic Thrombolysis In Myocardial Infarction grading by ≥2 points from baseline to Day 3 to 5. At Day 3 to 5, reperfusion and recanalization with intravenous tissue plasminogen activator were strongly correlated. Reperfusion was associated with improved clinical outcome independent of whether recanalization occurred. In contrast, recanalization was not associated with clinical outcome when reperfusion was included as a covariate in regression analyses. Reperfusion is a surrogate marker of clinical outcomes independent of recanalization based on the criteria applied in EPITHET. The impact of recanalization on clinical outcomes was attributable to reperfusion.]]> Sat 24 Mar 2018 08:40:01 AEDT ]]>