Pharmacokinetics of isoflurane: Uptake in the body

Chih Cherng Lu, Shung Tai Ho, Chih Shung Wong, Jhi Joung Wang, Chien Song Tsai, Oliver Yao Pu Hu, Sun Yran Chang, Chung Yuan Lin

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We investigated the effect of the inspired isoflurane concentration (C Iiso) on body uptake by comparing the isoflurane concentration in the pulmonary artery blood (PAiso) and that in the arterial blood (Aiso) in 16 patients undergoing coronary artery bypass grafting surgery during the 1st, hour of isoflurane anesthesia. The patients received standardized anesthetics consisting of fentanyl and thiopental and were then allocated to receive either 1% or 2% CIiso (n = 8 in each group). CIiso and end-tidal isoflurane concentration (CEiso) were measured by infrared analysis, and Aiso and PAiso were analyzed by gas chromatography. The cardiac output was measured by thermodilution by use of a pulmonary artery catheter. The body tissue could be represented by the gradient CIiso-CEiso or Aiso-PAiso over time, respectively. The 2% inspired isoflurane group had twice the gradients (either CIiso-CEiso or Aiso-PAiso) than the 1% inspired isoflurance group. Additionally, both C Iiso-CEiso and Aiso-PAiso were nearly constant over the hour of the study. The inspired concentration-dependent and near-constant uptake of isoflurane over time has important implications which enable us to apply the uptake pattern of isoflurane to clinical practice.

Original languageEnglish
Pages (from-to)132-137
Number of pages6
JournalPharmacology
Volume69
Issue number3
DOIs
Publication statusPublished - Oct 9 2003
Externally publishedYes

Fingerprint

Isoflurane
Pharmacokinetics
Coronary Artery Bypass
Pulmonary Artery
Thermodilution
Thiopental
Fentanyl
Cardiac Output
Gas Chromatography
Anesthetics
Catheters
Anesthesia

Keywords

  • Anesthetics
  • Body uptake, isoflurane
  • Isoflurane
  • Pharmacokinetics

ASJC Scopus subject areas

  • Pharmacology

Cite this

Lu, C. C., Ho, S. T., Wong, C. S., Wang, J. J., Tsai, C. S., Hu, O. Y. P., ... Lin, C. Y. (2003). Pharmacokinetics of isoflurane: Uptake in the body. Pharmacology, 69(3), 132-137. https://doi.org/10.1159/000072665

Pharmacokinetics of isoflurane : Uptake in the body. / Lu, Chih Cherng; Ho, Shung Tai; Wong, Chih Shung; Wang, Jhi Joung; Tsai, Chien Song; Hu, Oliver Yao Pu; Chang, Sun Yran; Lin, Chung Yuan.

In: Pharmacology, Vol. 69, No. 3, 09.10.2003, p. 132-137.

Research output: Contribution to journalArticle

Lu, CC, Ho, ST, Wong, CS, Wang, JJ, Tsai, CS, Hu, OYP, Chang, SY & Lin, CY 2003, 'Pharmacokinetics of isoflurane: Uptake in the body', Pharmacology, vol. 69, no. 3, pp. 132-137. https://doi.org/10.1159/000072665
Lu CC, Ho ST, Wong CS, Wang JJ, Tsai CS, Hu OYP et al. Pharmacokinetics of isoflurane: Uptake in the body. Pharmacology. 2003 Oct 9;69(3):132-137. https://doi.org/10.1159/000072665
Lu, Chih Cherng ; Ho, Shung Tai ; Wong, Chih Shung ; Wang, Jhi Joung ; Tsai, Chien Song ; Hu, Oliver Yao Pu ; Chang, Sun Yran ; Lin, Chung Yuan. / Pharmacokinetics of isoflurane : Uptake in the body. In: Pharmacology. 2003 ; Vol. 69, No. 3. pp. 132-137.
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