Abstract
BACKGROUND: Because of the overwhelming benefit of thrombectomy for highly selected trial patients with large vessel occlusion (LVO), some trial-ineligible patients are being treated in practice.
OBJECTIVE: To determine the safety and efficacy of thrombectomy in DAWN/DEFUSE-3-ineligible patients.
METHODS: Using a multicenter prospective observational study of consecutive patients with anterior circulation LVO who underwent late thrombectomy, we compared symptomatic intracerebral hemorrhage (sICH) and good outcome (90-d mRS 0-2) among DAWN/DEFUSE-3-ineligible patients to trial-eligible patients and to untreated DAWN/DEFUSE-3 controls.
RESULTS: Ninety-eight patients had perfusion imaging and underwent thrombectomy >6 h; 46 (47%) were trial ineligible (41% M2 occlusions, 39% mild deficits, 28% ASPECTS <6). In multivariable regression, the odds of a good outcome (aOR 0.76, 95% CI 0.49-1.19) and sICH (aOR 3.33, 95% CI 0.42-26.12) were not different among trial-ineligible vs eligible patients. Patients with mild deficits were more likely to achieve a good outcome (aOR 3.62, 95% CI 1.48-8.86) and less sICH (0% vs 10%, P = .16), whereas patients with ASPECTS <6 had poorer outcomes (aOR 0.14, 95% CI 0.05-0.44) and more sICH (aOR 24, 95% CI 5.7-103). Compared to untreated DAWN/DEFUSE-3 controls, trial-ineligible patients had more sICH (13%BEST vs 3%DAWN [P = .02] vs 4%DEFUSE [P = .05]), but were more likely to achieve a good outcome at 90 d (36%BEST vs 13%DAWN [P < .01] vs 17%DEFUSE [P = .01]).
CONCLUSION: Thrombectomy is used in practice for some patients ineligible for the DAWN/DEFUSE-3 trials with potentially favorable outcomes. Additional trials are needed to confirm the safety and efficacy of thrombectomy in broader populations, such as large core infarction and M2 occlusions.
Original language | English (US) |
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Pages (from-to) | E156-E163 |
Journal | Clinical Neurosurgery |
Volume | 86 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1 2020 |
Bibliographical note
Publisher Copyright:© 2019 by the Congress of Neurological Surgeons.
Keywords
- Acute stroke
- Computed tomography
- Perfusion imaging
- Thrombectomy
- Prospective Studies
- Humans
- Middle Aged
- Stroke/diagnostic imaging
- Male
- Thrombectomy/methods
- Treatment Outcome
- Aged, 80 and over
- Female
- Aged
- Brain Ischemia/diagnostic imaging
- Cohort Studies
PubMed: MeSH publication types
- Research Support, Non-U.S. Gov't
- Observational Study
- Multicenter Study
- Journal Article
- Research Support, N.I.H., Extramural