Dexmedetomidine produces more sleep-like brain activity compared with propofol in human participants
Authors' conclusion
Although delta power, functional connectivity, and network entropy all showed changes during propofol, dexmedetomidine, and sleep, the magnitudes of these changes suggest that the effects of dexmedetomidine are more similar than those of propofol to sleep, specifically to N2 sleep.
Study context
- Population
- Patients with epilepsy being evaluated for seizure resection surgery, with intracranial encephalography recordings
- Participants
- 34 patients
- Comparison
- Dexmedetomidine vs propofol anaesthesia vs overnight sleep
- Outcome
- Band power, functional connectivity and network entropy
Main finding
As reported in the abstract
- Significant differences in delta power during dexmedetomidine and propofol anaesthesia and during sleep
- Changes in delta power smaller and regionally heterogeneous for propofol vs dexmedetomidine and sleep
- Changes in network entropy larger for propofol vs dexmedetomidine and sleep
- Unresponsiveness under dexmedetomidine produces a brain state similar to N2 sleep
Original publication
Dexmedetomidine produces more sleep-like brain activity compared with propofol in human participants. Br J Anaesth. Published 6 November 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →