Questions · Processed EEG and Anesthetic Depth
8 questions, 0 approved. Approve them one at a time — a quiz shows nothing you have not.
Recall — derived from a kept point
The B-Aware randomised controlled trial studied adults at high risk of awareness having general anaesthesia with neuromuscular blockade. State what BIS-guided anaesthesia did to confirmed awareness in that trial, giving the number of cases in each group and the relative risk reduction.
Answer: BIS-guided anaesthesia cut confirmed awareness from 11 cases to 2, a relative risk reduction of 82%.
B-Aware is the awareness trial, not a delirium or outcome trial: in high-risk adults receiving a relaxant, BIS guidance took confirmed awareness from 11 cases down to 2.
Source claim: In adults at high risk of awareness having relaxant general anaesthesia, BIS-guided anaesthesia cut confirmed awareness from 11 cases to 2, a relative risk reduction of 82%.
Bispectral Index Monitoring to Prevent Awareness During Anaesthesia: The B-Aware Randomised Controlled Trial, Lancet (London, England) 2004
recall · CA-2 · phrased by llm
An international observational study recorded intraoperative EEG in children aged three years or under. State how often isoelectric EEG occurred overall, how much the rate varied between hospitals, and what clinical finding it was associated with.
Answer: Isoelectric EEG occurred in 32% of children aged three years or under during anaesthesia, varied from 9% to 88% between hospitals, and was associated with moderate and severe hypotension.
Nearly a third of these young children went isoelectric at some point, and the nine-to-eighty-eight percent spread between hospitals tells you this is a practice variable, not an unavoidable one.
Source claim: Isoelectric EEG occurred in 32% of children aged three years or under during anaesthesia, varied from 9% to 88% between hospitals, and was associated with moderate and severe hypotension.
Isoelectric Electroencephalography in Infants and Toddlers During Anesthesia for Surgery: An International Observational Study, Anesthesiology 2022
recall · CA-2 · phrased by llm
The ASER/POQI joint consensus statement on neuromonitoring addressed electroencephalography. State both halves of its position: what it recommends about EEG monitoring, and the specific outcomes for which it found the evidence insufficient to recommend EEG.
Answer: The POQI consensus recommends EEG monitoring as part of the vital organ monitors, while finding insufficient evidence to recommend it for preventing delirium, neurocognitive disorder or postoperative mortality.
Use the EEG as a vital organ monitor, which is what POQI endorses, but do not claim it prevents delirium, neurocognitive disorder or death, because POQI found the evidence insufficient for that.
Source claim: The POQI consensus recommends EEG monitoring as part of the vital organ monitors, while finding insufficient evidence to recommend it for preventing delirium, neurocognitive disorder or postoperative mortality.
American Society for Enhanced Recovery and Perioperative Quality Initiative Joint Consensus Statement on the Role of Neuromonitoring in Perioperative Outcomes: Electroencephalography, Anesthesia and analgesia 2020
recall · CA-3 · phrased by llm
You are anaesthetizing a neonate and the processed EEG index is displayed. According to a review of EEG use in children, why should the index alone not be trusted in neonates and infants, and which three elements of the EEG display should you read instead?
Answer: Processed EEG indices may not reliably reflect hypnotic state in neonates and infants, so read the raw waveform, spectral edge frequency and density spectral array rather than trusting the index alone.
In the youngest patients the single index number may not reflect hypnotic state at all, so look at the raw waveform, the spectral edge frequency and the density spectral array.
Source claim: Processed EEG indices may not reliably reflect hypnotic state in neonates and infants, so read the raw waveform, spectral edge frequency and density spectral array rather than trusting the index alone.
The Utility of Electroencephalography in Guiding General Anesthesia in Children, Anesthesia and analgesia 2026
recall · CA-1 · phrased by llm
The point with one number taken out. No model wrote any of this: the stem is the sentence you reviewed, minus a digit, and the paper it came from is named beneath it.
Open prompts
How does your plan change if the patient is not optimised?
open · CA-2 · phrased by derived
What is the physiology behind what we just did?
open · CA-2 · phrased by derived
Talk me through the trade-off you made there.
open · CA-2 · phrased by derived
What would make you abandon this plan and do something else?
open · CA-2 · phrased by derived
Questions only — nothing here asserts anything, which is why a model is allowed to phrase them. Where no model was reachable these are the level defaults.