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[Electroencephalographic changes during anesthesia with low-dose propofol].

B Brunetti1, R Arienta, M Favaro

  • 1Servizio di Anestesia, Rianimazione, Terapia Intensiva ed Antalgica, USSL n. 67, Presidio Ospedaliero di Garbagnate Milanese, Milano.

Minerva Anestesiologica
|April 1, 1990
PubMed
Summary
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Low-dose propofol anesthesia with fentanyl allows for clear electroencephalogram (EEG) monitoring during peripheral vascular surgery. This technique facilitates detection of cerebral suffering, making it suitable for procedures like carotid surgery.

Area of Science:

  • Anesthesiology
  • Neurophysiology
  • Surgical Monitoring

Context:

  • Peripheral vascular surgery often requires careful anesthetic management to ensure patient safety.
  • Continuous monitoring of cerebral function is crucial during specific surgical procedures, such as carotid surgery.
  • Evaluating electroencephalographic (EEG) changes during anesthesia provides insights into brain activity.

Purpose:

  • To investigate the electroencephalographic (EEG) changes during low-dose propofol (4-2 mg/kg/h) and fentanyl anesthesia.
  • To assess the feasibility and effectiveness of continuous EEG monitoring in patients undergoing peripheral vascular surgery.
  • To determine if this anesthetic technique allows for reliable detection of cerebral suffering.

Summary:

  • Twelve patients undergoing peripheral vascular surgery received anesthesia with low-dose propofol (4-2 mg/kg/h) plus fentanyl, with a standard induction dose of 2 mg/kg.

Related Experiment Videos

  • Electroencephalogram (EEG) recordings were analyzed throughout induction and maintenance phases of anesthesia.
  • The study found that EEG was consistently readable, enabling the detection of potential cerebral suffering during the surgical procedure.

    • Impact:

    • The findings suggest that low-dose propofol and fentanyl anesthesia provides adequate conditions for continuous EEG monitoring during peripheral vascular surgery.
    • This anesthetic approach may be beneficial for surgeries like carotid surgery, where intraoperative and postoperative monitoring of cerebral function is essential.
    • The study supports the use of this technique for safeguarding cerebral function during critical surgical interventions.