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Related Experiment Videos

Coasting after overpressure induction with sevoflurane.

J F Hendrickx1, D M Vandeput, A M De Geyndt

  • 1Department of Anesthesiology, Intensive Care and Pain Therapy, Onze Lieve Vrouwziekenhuis, Aalst, Belgium.

Journal of Clinical Anesthesia
|May 20, 2000
PubMed
Summary

Coasting with sevoflurane anesthesia is a simple, effective technique for maintaining anesthesia during short procedures. This method allows for minimal fresh gas flow and can serve as a bridge to other low-flow anesthesia techniques.

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Area of Science:

  • Anesthesiology
  • Pharmacology

Background:

  • General anesthesia is commonly induced using volatile agents like sevoflurane.
  • Maintaining adequate anesthetic depth while minimizing agent use is a clinical challenge.

Purpose of the Study:

  • To assess the clinical feasibility of a sevoflurane "coasting" technique for temporary anesthesia maintenance.
  • To evaluate coasting as a method following overpressure induction.

Main Methods:

  • Prospective clinical study involving 12 patients (ASA I-III) undergoing peripheral procedures.
  • Sevoflurane overpressure induction followed by a reduction in fresh gas flow (FGF) to 0.5 L/min with the vaporizer turned off (coasting).

Main Results:

  • Anesthesia depth was adequate for laryngeal mask airway insertion approximately 3.4 minutes after induction.

Related Experiment Videos

  • End-expired sevoflurane concentration decreased from 5.8% to 0.97% within 20 minutes of coasting.

    • Conclusions:

    • Coasting is a simple technique to maintain anesthesia for short procedures (15-20 minutes) after sevoflurane overpressure induction.
    • This method is suitable as a bridge or adjunct to other low-flow anesthesia techniques.