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Lookup NU author(s): Emeritus Professor David Mendelow
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© 2019 World Stroke Organization. Rationale and hypothesis: Surgical removal of spontaneous intracerebral hemorrhage may reduce secondary destruction of brain tissue. However, large surgical trials of craniotomy have not demonstrated definitive improvement in clinical outcomes. Minimally invasive surgery may limit surgical tissue injury, and recent evidence supports testing these approaches in large clinical trials. Methods and design: MISTIE III is an investigator-initiated multicenter, randomized, open-label phase 3 study investigating whether minimally invasive clot evacuation with thrombolysis improves functional outcomes at 365 days compared to conservative management. Patients with supratentorial intracerebral hemorrhage clot volume ≥ 30 mL, confirmed by imaging within 24 h ofknown symptom onset,and intact brainstem reflexes were screened with a stability computed tomography scan at least 6 h after diagnostic scan. Patients who met clinical and imaging criteria (no ongoing coagulopathy; no suspicion of aneurysm, arteriovenous malformation, or any other vascular anomaly; and stable hematoma size on consecutive scans) were randomized to either minimally invasive surgery plus thrombolysis or medical therapy. The sample size of 500 was based on findings of a phase 2 study. Study outcomes: The primary outcome measure is dichotomized modified Rankin Scale 0–3 vs. 4–6 at 365 days adjusting for severity variables. Clinical secondary outcomes include dichotomized extended Glasgow Outcome Scale and all-cause mortality at 365 days; rate and extent of parenchymal blood clot removal; patient disposition at 365 days; efficacy at 180 days; type and intensity of ICU management; and quality of life measures. Safety was assessed at 30 days and throughout the study.
Author(s): Ziai WC, McBee N, Lane K, Lees KR, Dawson J, Vespa P, Thompson RE, Mendelow AD, Kase CS, Carhuapoma JR, Thompson CB, Mayo SW, Reilly P, Janis S, Anderson CS, Harrigan MR, Camarata PJ, Caron J-L, Zuccarello M, Awad IA, Hanley DF
Publication type: Article
Publication status: Published
Journal: International Journal of Stroke
Year: 2019
Volume: 14
Issue: 5
Pages: 548-554
Print publication date: 01/07/2019
Online publication date: 03/04/2019
Acceptance date: 20/12/2018
ISSN (print): 1747-4930
ISSN (electronic): 1747-4949
Publisher: Sage Publications Ltd.
URL: https://doi.org/10.1177%2F1747493019839280
DOI: 10.1177/1747493019839280
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