ArticleNeurological research and practice2025
Feasibility of non-invasive neuromonitoring using BIS and NIRS during endovascular treatment of acute ischemic stroke.
Article in Neurological research and practice, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Anesthesia for acute ischemic stroke after the 2026 AHA/ASA guideline: a peri-thrombectomy practice framework.Journal of anesthesia · 2026Review
- Electroencephalography (EEG) and Quantitative EEG for Acute Stroke Triage and Post-Reperfusion Monitoring: A Systematic Review.Archives of academic emergency medicine · 2026Review
- Quantitative EEG and EEG-Derived Markers of Severity, Prognosis, and Recovery After Ischemic Stroke: A Systematic Review.Archives of academic emergency medicine · 2026Review
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEndovascular thrombectomy (EVT)-often combined with intravenous thrombolysis-is the standard of care for acute ischemic stroke (AIS) secondary to large vessel occlusions (LVO). While indications keep expanding, the feasibility and utility of intra-procedural neuromonitoring of the sedated patient has neither been clarified nor characterized.
objectiveTo evaluate the feasibility of near-infrared spectroscopy (NIRS) for cortical oxygenation and bispectral index (BIS) for electroencephalographic function as non-invasive neuromonitoring tools for AIS patients undergoing EVT, and assess their utility in predicting successful recanalization.
methodsWe extracted data on all patients receiving continuous NIRS and/or BIS monitoring in the Sedation versus Intubation for Endovascular Stroke TreAtment (SIESTA) clinical trial. SIESTA randomized AIS patients undergoing EVT for anterior proximal LVO to general anesthesia versus conscious sedation. For this analysis, the primary outcomes included changes in NIRS and BIS values pre- and post-recanalization and associations of parameter changes with successful or unsuccessful recanalization outcomes. Statistical analysis was performed using a Wilcoxon signed rank tests.
resultsOf the 150 patients, 66 were monitored continuously with NIRS, and 50 with BIS. An increased NIRS-derived cerebral tissue oxygenation (stated as tissue saturation index - TSI) was observed in affected hemisphere following successful recanalization, as well as a significant reduction in the difference between affected and unaffected hemispheres. In contrast, no significant changes were observed with BIS monitoring between pre- and post-recanalization status.
conclusionIn this post-hoc analysis, changes in NIRS monitoring were associated with successful reperfusion. Non-invasive oximetry by NIRS may serve as a valuable tool during and after mechanical thrombectomy to detect and respond to an insufficient perfusion or re-occlusion.
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