Alfentanil/etomidate anaesthesia for endolaryngeal microsurgery

Area of Science:

• Anesthesiology
• Otolaryngology
• Laser Surgery

Background:

• Laser laryngeal microsurgery requires specialized anesthesia techniques.
• Fire risk during laser surgery necessitates careful anesthetic management, particularly ventilation.
• Previous anesthetic protocols may have limitations for this specific procedure.

Purpose of the Study:

• To evaluate the efficacy and safety of etomidate and alfentanil for anesthesia during laser laryngeal microsurgery.
• To assess hemodynamic stability and patient recovery.
• To determine the suitability of air ventilation to mitigate fire risk.

Main Methods:

• Thirty-one patients underwent anesthesia using etomidate and alfentanil.
• Patients received fentanyl/droperidol or pethidine for premedication.
• Ventilation was performed with air to prevent fire hazards; anesthesia was induced and maintained with etomidate, with alfentanil administered as a bolus and increments.

Main Results:

• A significant decrease in systolic arterial blood pressure and heart rate was observed at certain intervals.
• Blood biochemistry and blood gases remained within normal limits, with elevated PaO2 noted during pure oxygen ventilation.
• The anesthetic technique facilitated prompt and smooth patient awakening.

Conclusions:

• Etomidate and alfentanil provide adequate anesthesia for laser laryngeal microsurgery.
• The use of air ventilation effectively addressed fire safety concerns.
• This anesthetic approach resulted in a low incidence of postoperative nausea and vomiting and a smooth recovery.