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Brainstem auditory evoked response during propofol anaesthesia in children
1Department of Anaesthesia, Royal Hospital for Sick Children, Yorkhill, Glasgow.
Anaesthesia
|March 1, 1993
Summary
Propofol anesthesia slightly increased brainstem auditory response latencies in children undergoing surgery. These dose-dependent changes were minimal, allowing propofol use during brainstem auditory evoked response testing.
Area of Science:
- Anesthesiology
- Neurophysiology
- Pediatric Surgery
Background:
- Brainstem auditory evoked responses (BAERs) assess auditory pathway function.
- Propofol is a common anesthetic agent in pediatric surgery.
- Understanding propofol's effects on neurophysiological tests is crucial.
Purpose of the Study:
- To investigate the impact of propofol on brainstem auditory evoked responses in children.
- To determine if propofol anesthesia affects BAERs in a dose-dependent manner.
Main Methods:
- Studied 10 healthy children undergoing elective surgery.
- Administered propofol via computer-controlled infusion for anesthesia.
- Recorded basal BAERs in awake children and at varying propofol infusion rates.
Main Results:
- Observed significant, dose-dependent increases in latencies for brainstem waves III and V.
- Noted dose-dependent increases in interpeak intervals I-V and III-V.
- The observed changes in BAERs were small.
Conclusions:
- Propofol anesthesia causes minor, dose-dependent alterations in pediatric BAERs.
- These effects do not contraindicate the use of propofol for BAER testing in children.