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Propofol infusion with or without fentanyl supplementation for microlaryngoscopy
P Ewalenko1, T Deloof, M Gerin
1Anesthesia Departments of the Institute J. Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles.
Acta Anaesthesiologica Belgica
|January 1, 1990
Summary
Propofol infusion is effective for microlaryngeal surgery. Adding fentanyl reduces propofol dosage without significantly impacting patient recovery, though optimal fentanyl levels require further study.
Area of Science:
- Anesthesiology
- Pharmacology
Background:
- Microlaryngeal surgery requires careful anesthetic management.
- Propofol is a commonly used anesthetic agent for short surgical procedures.
Purpose of the Study:
- To evaluate the efficacy and safety of propofol infusion alone versus propofol with fentanyl for microlaryngeal surgery.
- To assess the impact on cardiovascular stability and recovery characteristics.
Main Methods:
- A randomized study of 20 patients undergoing microlaryngeal surgery.
- Group A received propofol infusion alone; Group B received propofol with fentanyl supplementation.
- Cardiovascular parameters and propofol blood concentrations were monitored.
Main Results:
- Both groups experienced similar hypotension at induction and hypertension during laryngoscopy.
- Propofol blood concentrations were higher at induction but decreased over time.
- Lower propofol levels were observed at awakening in the fentanyl group (Group B).
- Recovery was slightly faster in the propofol-only group (Group A).
Conclusions:
- Propofol infusion is suitable for microlaryngeal surgery.
- Fentanyl supplementation allows for reduced propofol dosage with minimal impact on recovery.
- Further research is needed to determine the optimal fentanyl dose for blunting cardiovascular responses to laryngoscopy.