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Sevoflurane
Pronunciation
U.S. Brand Names
Generic Available
Pharmacological Index
Use
Pregnancy Risk Factor
Contraindications
Warnings/Precautions
Adverse Reactions
Drug Interactions
Stability
Pharmacodynamics/Kinetics
Usual Dosage
Monitoring Parameters
Dosage Forms
References

Pronunciation
(see voe FLOO rane)

U.S. Brand Names
Ultane®

Generic Available

No


Pharmacological Index

General Anesthetic


Use

General induction and maintenance of anesthesia (inhalation)


Pregnancy Risk Factor

B


Contraindications

Previous hypersensitivity to sevoflurane or other halogenated anesthetics


Warnings/Precautions

Malignant hyperthermia has been reported in susceptible patients, due to its potential for fluoride nephropathy, renal function should be closely monitored, similar to isoflurane, sevoflurane has the potential to increase cerebral blood flow and intracranial pressure and therefore, must be used with caution in patients with pre-existing increases in CSF pressure.


Adverse Reactions

>1%:

Central nervous system: Agitation, headache, somnolence, dizziness, fever, early emergence movement, hypothermia

Gastrointestinal: Nausea (25%) and vomiting (18%), increased salivation

Respiratory: Laryngospasm, airway obstruction, breath holding, increased cough, apnea

Miscellaneous: Shivering


Drug Interactions

CYP2E1 enzyme substrate


Stability

Store at controlled room temperature (15°C to 30°C); use cautiously in low-flow or closed-circuit systems, since sevoflurane is unstable potentially toxic breakdown products have been liberated


Pharmacodynamics/Kinetics

Sevoflurane has a low blood/gas partition coefficient and therefore is associated with a rapid onset of anesthesia and recovery

Emergence time: 4 to 14 minutes

Metabolism: In the liver to inorganic fluoride, hexafluoroisopropanol and hexafluoroisopropanol glucuronide


Usual Dosage

Induction: Usually administered in concentrations of 1.8% to 5% in N2O/O2. It has also been given via the vital capacity rapid inhalation technique as 4.5% in N2O/O2

Maintenance: Surgical levels of anesthesia can usually be obtained with concentrations of 0.75% to 3%


Monitoring Parameters

Blood pressure, temperature, heart rate, neuromuscular function, oxygen saturation, end-tidal CO2 and end-tidal sevoflurane concentrations should be monitored prior to and throughout anesthesia; the dose of sevoflurane may be adjusted by monitoring blood pressure, since the depth of anesthesia is inversely related to blood pressure in the absence of other complications


Dosage Forms

Liquid for inhalation: 250 mL


References

Doi M and Ikeda K, "Airway Irritation Produced by Volatile Anaesthetics During Brief Inhalation: Comparison of Halothane, Enflurane, Isoflurane and Sevoflurane," Can J Anaesth, 1993, 40(2):122-6.

Frink EJ Jr, Ghantous H, Malan TP, et al, "Plasma Inorganic Fluoride With Sevoflurane Anesthesia: Correlation With Indices of Hepatic and Renal Function," Anesth Analg, 1992, 74(2):231-5.

Jones RM, "Desflurane and Sevoflurane: Inhalation Anaesthetics for This Decade?" Br J Anaesth, 1990, 65(4):527-36.

Katoh T, Suguro Y, Nakajima R, et al, "Blood Concentrations of Sevoflurane and Isoflurane on Recovery From Anaesthesia," Br J Anaesth, 1992, 69(3):259-62.

Smith I, Ding Y, and White PF, "Comparison of Induction, Maintenance, and Recovery Characteristics of Sevoflurane-N20 and Propofol-Sevoflurane-N(2)O With Propofol-Isoflurane-N(2)O Anesthesia," Anesth Analg, 1992, 74(2):253-9.

Strum DP and Eger EI 2d, "Partition Coefficients for Sevoflurane in Human Blood, Saline, and Olive Oil," Anesth Analg, 1987, 66(7):654-6.


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