Airway management

Noradrenergic suppression to reduce electroencephalographic arousal after intubation: a randomised, placebo-controlled trial

BJA OpenPublished Randomised controlled trial

Primary result · Change in BIS after tracheal intubationResult — go to the resultMean difference −1.13 95% CI −4.87 to 2.62

Authors' conclusion

Dexmedetomidine demonstrated an anaesthetic-sparing effect at induction of anaesthesia but did not prevent EEG arousal after tracheal intubation, as defined by an increase in the BIS value.

Study context

Population
Patients aged 18–40 yr undergoing intubation for GAincluded in primary analysis
Participants
51 patients
Comparison
Dexmedetomidine vs placebo
Primary endpoint
Change in BIS from pre- to postintubation
Methodological detailsplacebo-controlled, single-site, sex-based stratification
  • Placebo-controlled
  • Single-site
  • Sex-based stratification

Primary result

Change in BIS after tracheal intubation

Mean difference

−1.13

95% CI −4.87 to 2.62

P = 0.556

Dexmedetomidine vs Placebo
mean difference −1.13 (95% CI −4.87 to 2.62); P = 0.556

As reported in the abstract

Further findings

OutcomeDifference (μg ml-1) (95% CI)P value
Estimated plasma propofol concentration at loss of responsiveness−1.06 (−1.66 to −0.46)P < 0.001
Estimated plasma propofol concentration before intubation−1.84 (−2.79 to −0.90)P < 0.001
OutcomePlacebo
Positive isolated forearm test before and after tracheal intubation1 events

Original publication

Noradrenergic suppression to reduce electroencephalographic arousal after intubation: a randomised, placebo-controlled trial. BJA Open. Published 16 December 2024. doi:10.1016/j.bjao.2024.100359

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