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Correlation of Conjunctival Oxygen Tension with Carotid Artery Blood Flow During Hemorrhagic Hypotension

  • Yoshinori Kikuta
  • Otowa Moritsune
  • Hiroaki Kawabata
  • Shinkichi Tezuka
  • Kazuo Okada
  • Atsuo Fukunaga

Abstract

The palpebral conjunctiva is a very special tissue. The mucous membrane epithelium overlying the conjunctival capillaries is only two to four cell layers thick with minimum oxygen consumption, and this presents a unique opportunity to measure tissue oxygen tension atraumatically [1]. The transconjunctival oxygen monitor measures tissue oxygen tension, which reflects both the oxygen content of the arterial blood and the regional blood flow. If arterial oxygen content remains constant, then any change in tissue oxygen tension should be secondary to a change in the blood flow to that tissue. The purpose of this study was to examine the relationship between the conjunctival PO2 (PcjO2, in millimeters of mercury) and carotid artery blood flow (CaBF, in millimeters per minute) in the dog during hemorrhagic hypotension.

Keywords

Mean Arterial Pressure Oxygen Tension Arterial Oxygen Tension Carotid Artery Occlusion Pancuronium Bromide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Kwan M, Fatt I (1971) A noninvasive method of continuous arterial oxygen tension estimation from measured palpebral conjunctival oxygen tension. Anesthesiology 35: 309–314PubMedCrossRefGoogle Scholar
  2. 2.
    van der Zee HT, Faithfull NS, Kypers MH Dhasmana KM, Erdman W (1985) On-line conjunctival oxygen tension as a guide to cerebral oxygenation. Anesth Analg 64: 63–67PubMedGoogle Scholar
  3. 3.
    Gibson BE, McMichan JC, Cucchiara RF (1986) Lack of correlation between transconjunctival O2 and cerebral blood flow during carotid artery occlusion. Anesthesiology 64: 277–279PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Tokyo 1988

Authors and Affiliations

  • Yoshinori Kikuta
    • 1
  • Otowa Moritsune
    • 1
  • Hiroaki Kawabata
    • 1
  • Shinkichi Tezuka
    • 1
  • Kazuo Okada
    • 1
  • Atsuo Fukunaga
    • 2
  1. 1.Department of AnesthesiologyTeikyo University School of MedicineItabashi-ku, Tokyo, 173Japan
  2. 2.Department of AnesthesiologyHarbor-UCLA Medical CenterTorranceUSA

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