Pulse oximetry and postoperative hypothermia: An evaluation of the Nellcor N‐100 in a cardiac surgical intensive care unit
Open accessAbstract
The accuracy of the Nellcor N-100 pulse oximeter was evaluated in hypothermic patients (core temperature less than or equal to 35.0 degrees C) after cardiac surgery. The pulse oximeter overestimated oxygen saturation in comparison to values obtained by direct in vitro oximetry with a mean bias of 0.6% saturation. The 95% predictability limits for individual measurements were +/- 3.9% oxygen saturation. No demonstrable loss of accuracy was caused by skin pigmentation, the concurrent administration of low doses of dopamine or vasodilators, or the intra-operative intravascular administration of Patent Blue V dye.
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Some older studies did not identify a considerable bias related to skin pigmentation, suggesting that dark skin pigmentation does not affect the quality of the signal.
“Conversely, some older studies did not identify a considerable bias related to skin pigmentation [44,45,46,56] suggesting that dark skin pigmentation does not affect the quality of the signal [47].”
From Skin pigmentation influence on pulse oximetry accuracy: a systematic review and bibliometric analysis (2022) · cites this paper as [45]
The skin pigmentation effect on pulse oximetry accuracy has long been studied, reporting some contradictory conclusions.
“The skin pigmentation effect on pulse oximetry accuracy has long been studied reporting some contradictory conclusions.”
From Skin pigmentation influence on pulse oximetry accuracy: a systematic review and bibliometric analysis (2022) · cites this paper as [45]
Other subjective scales were employed in 13 studies (35.14%).
“and other subjective scales were employed in 13 studies (35.14%) [30,42,43,44,45,50,52,56,72,78,80,87,88].”
From Skin pigmentation influence on pulse oximetry accuracy: a systematic review and bibliometric analysis (2022) · cites this paper as [45]
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Cites
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- Authors
- GABRIELCZYK, M. R., & BUIST, R. J.
- Affiliations
- University College Hospital at Westmoreland Street (GB)
- Venue
- Anaesthesia
- Publisher
- Wiley
- Published
- 1988-05
- Volume
- 43
- Issue
- 5
- Pages
- 402-404
- ISSN
- 0003-2409 (ISSN-L)
- 1365-2044
- OpenAlex
- W1876894315
- Cited by
- 59
- References
- 11
- Citations by year
- 2026: 1 · 2024: 2 · 2023: 1 · 2022: 23
- FWCI
- 4.82
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Anaesthesia (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Non-Invasive Vital Sign Monitoring
- Health Sciences › Medicine › Surgery › Hemodynamic Monitoring and Therapy
- Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Thermal Regulation in Medicine
- Keywords
- pulse oximetry, postoperative hypothermia, oxygen saturation measurement, cardiac surgery, measurement accuracy, skin pigmentation, dopamine, vasodilators, Patent Blue V, core body temperature
- MeSH terms
- Aged, Critical Care, Evaluation Studies as Topic, Cardiac Surgical Procedures, Humans, Hypothermia, Middle Aged, Oximetry, Oxygen, Postoperative Complications
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