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General anesthesia ...
General anesthesia during endovascular therapy for acute ischemic stroke: benefits beyond better reperfusion?
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Simonsen, C. Z. (author)
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Rasmussen, M. (author)
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Schonenberger, S. (author)
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- Löwhagen Hendén, Pia (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för anestesiologi och intensivvård,Institute of Clinical Sciences, Department of Anesthesiology and Intensive care
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Bosel, J. (author)
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Valentin, J. B. (author)
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(creator_code:org_t)
- 2021-09-02
- 2022
- English.
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In: Journal of Neurointerventional Surgery. - : BMJ. - 1759-8478 .- 1759-8486. ; 14:8, s. 767-771
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Abstract
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- Background Endovascular therapy (EVT) is standard of care for stroke caused by large vessel occlusion. Whether EVT should be performed under general anesthesia (GA) or conscious sedation (CS) is controversial. While a meta-analysis of randomized trials showed better outcome for EVT under GA, observational studies suggested the opposite. A proposed advantage of GA is better reperfusion achieved via more successful handling of the immobile patient. The aim of this study was to investigate if the good outcome seen in patients treated under GA was mediated by better reperfusion. Methods The meta-analysis included 368 individual patients from three randomized controlled trials, of whom 185 patients were randomized to CS. A mediator analysis was performed to examine if the better outcome in the GA arm was driven by higher reperfusion rate. Results The total effect showed a risk difference (RD) of 0.15 (95% CI 0.04 to 0.25), associating GA with a beneficial outcome. The direct effect of GA constituted a large portion, with an RD of 0.12 (95% CI 0.01 to 0.22), while only a small portion was mediated through the degree of reperfusion, with an RD of 0.03 (95% CI 0.02 to 0.04). Conclusion The better outcome after EVT in the GA arm was mainly a direct effect-that is, an effect that was not explained by better reperfusion. We also found a better outcome in the GA arm when reperfusion was not achieved. Whether this is an effect of the stable condition and blood pressure under GA or a neuroprotective effect will need to be investigated in future research.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Anestesi och intensivvård (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Anesthesiology and Intensive Care (hsv//eng)
Keyword
- stroke
- angiography
- intervention
- thrombectomy
- individual patient data
- conscious sedation
- mechanical thrombectomy
- outcomes
- revascularization
- metaanalysis
- management
- impact
- trial
- Neurosciences & Neurology
- Surgery
Publication and Content Type
- ref (subject category)
- art (subject category)
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