A small randomized trial showed that a physiological endpoint and a clinical behavioral endpoint need not improve together.
Sixty-two children aged one to six undergoing tonsil or adenoid surgery received pre-induction remimazolam or saline before sevoflurane anesthesia. Remimazolam reduced observed EEG epileptiform discharges and delayed their first appearance. The primary outcome, emergence delirium, and peak pediatric emergence-delirium scores did not differ significantly.
The study was conducted at one center with limited sample size and EEG recording capabilities. Electrical discharges are not synonymous with clinical seizures, and reducing them does not establish the proposed pathway to reduced delirium. Nonsignificant behavioral results do not prove that both regimens have identical effects in all children.
For expert explanation, state the primary clinical result before highlighting secondary EEG findings. Avoid describing this as established delirium prevention or seizure prevention. The source is useful for showing why a plausible surrogate response must be tested against the actual patient outcome it is intended to predict.
Source reviewed: The effect of preoperative remimazolam application on emergence delirium in children under sevoflura (PMC13069723). Forensic applications above are interpretive analysis of the supplied paper.
Related reading: A Pediatric Emergence Trial Lacked an Untreated Control.