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The desaturation response time of finger pulse oximeters during mild hypothermia.

Publication ,  Journal Article
MacLeod, DB; Cortinez, LI; Keifer, JC; Cameron, D; Wright, DR; White, WD; Moretti, EW; Radulescu, LR; Somma, J
Published in: Anaesthesia
January 2005

Pulse oximeters may delay displaying the correct oxygen saturation during the onset of hypoxia. We investigated the desaturation response times of pulse oximeter sensors (forehead, ear and finger) during vasoconstriction due to mild hypothermia and vasodilation caused by glyceryl trinitrate. Ten healthy male volunteers were given three hypoxic challenges of 3 min duration under differing experimental conditions. Mild hypothermia increased the mean response time of finger oximeters from 130 to 215 s. Glyceryl trinitrate partly offset this effect by reducing the response time from 215 to 187 s. In contrast, the response times of the forehead and ear oximeters were unaffected by mild hypothermia, but the difference between head and finger oximeters was highly significant (p < 0.0001). The results suggest that the head oximeters provide a better monitoring site for pulse oximeters during mild hypothermia.

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Published In

Anaesthesia

DOI

ISSN

0003-2409

Publication Date

January 2005

Volume

60

Issue

1

Start / End Page

65 / 71

Location

England

Related Subject Headings

  • Vasodilator Agents
  • Vasodilation
  • Vasoconstriction
  • Reaction Time
  • Oximetry
  • Nitroglycerin
  • Monitoring, Physiologic
  • Male
  • Hypoxia
  • Hypothermia
 

Citation

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MacLeod, D. B., Cortinez, L. I., Keifer, J. C., Cameron, D., Wright, D. R., White, W. D., … Somma, J. (2005). The desaturation response time of finger pulse oximeters during mild hypothermia. Anaesthesia, 60(1), 65–71. https://doi.org/10.1111/j.1365-2044.2004.04033.x
MacLeod, D. B., L. I. Cortinez, J. C. Keifer, D. Cameron, D. R. Wright, W. D. White, E. W. Moretti, L. R. Radulescu, and J. Somma. “The desaturation response time of finger pulse oximeters during mild hypothermia.Anaesthesia 60, no. 1 (January 2005): 65–71. https://doi.org/10.1111/j.1365-2044.2004.04033.x.
MacLeod DB, Cortinez LI, Keifer JC, Cameron D, Wright DR, White WD, et al. The desaturation response time of finger pulse oximeters during mild hypothermia. Anaesthesia. 2005 Jan;60(1):65–71.
MacLeod, D. B., et al. “The desaturation response time of finger pulse oximeters during mild hypothermia.Anaesthesia, vol. 60, no. 1, Jan. 2005, pp. 65–71. Pubmed, doi:10.1111/j.1365-2044.2004.04033.x.
MacLeod DB, Cortinez LI, Keifer JC, Cameron D, Wright DR, White WD, Moretti EW, Radulescu LR, Somma J. The desaturation response time of finger pulse oximeters during mild hypothermia. Anaesthesia. 2005 Jan;60(1):65–71.
Journal cover image

Published In

Anaesthesia

DOI

ISSN

0003-2409

Publication Date

January 2005

Volume

60

Issue

1

Start / End Page

65 / 71

Location

England

Related Subject Headings

  • Vasodilator Agents
  • Vasodilation
  • Vasoconstriction
  • Reaction Time
  • Oximetry
  • Nitroglycerin
  • Monitoring, Physiologic
  • Male
  • Hypoxia
  • Hypothermia