ArticleFrontiers in medicine2022
Identifying Recall Under Sedation by a Novel EEG Based Index of Attention-A Pilot Study.
Article in Frontiers in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 9 citations in OpenAlex.
- A novel 1-channel EEG marker may associate with perioperative cognitive change.Frontiers in systems neuroscience · 2026Article
- Case Report: Introducing @tension-a system for improving adherence to exposure therapy in chronic pain patients.Frontiers in human neuroscience · 2026Article
- Brain health: A concern for anaesthesiologists and intensivists.European journal of anaesthesiology and intensive care · 2024Review
- Markers of too little effort or too much alertness during neuropsychological assessment: Demonstration with perioperative changes.Brain and behavior · 2024Article
- The nature of consciousness in anaesthesia.BJA open · 2023Review
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Overview: Recall is an accepted consequence of sedation. But due to the very low prevalence of the more devastating awareness under anesthesia (AUA), it might be of value to assess first the efficacy of new markers for AUA by their efficacy in discovering the more prevalent recall under sedation (RUS). In this pilot study we assessed whether a novel index for attentional effort, the cognitive effort index (CEI), derived in real-time from one forehead EEG channel, could differentiate between patients with or without RUS. Methods: EEG was sampled from 2 groups: (1) Patients who underwent deep sedation ( Results: Of the 25 sedated patients, 11 experienced recall. The CEI marker was high during significantly longer periods in patients with recall, compared to sedated patients, or patients under GA, without recall. Moreover, the increase in CEI was evident mainly toward the end of the procedure. Conclusion: RUS seems to associate with higher level of attention, which is identified in real-time by the easy-to-extract CEI marker.
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