Paperdoi:10.1111/nicc.70708

Peripheral Perfusion: The Missing Physiological Variable in ICU Pulse Oximetry Accuracy Studies

Venue listed2026Added Sep 26, 2026

  • CS
  • FL
  • NK
  • HW

Authors: Carl Sjödin, Felicia Olsson Lindstrand, Natalie Karlsson, Hannes Widing

Nursing in Critical Care

TL;DR

Clinical commentary/study framing peripheral perfusion (not only pigmentation) as a missing covariate in ICU pulse-oximetry accuracy work. Aligns with related Sjödin-group evidence that local warming can raise perfusion index and reduce SpO2 bias, with pigmentation as effect-modifier under investigation (see also related ICU warming / NCT follow-ups).

  • Form factor: finger

Abstract

The authors declare no conflicts of interest. The data that support the findings of this study are available from the corresponding author upon reasonable request.

Verbatim from OpenAlex (opens in a new tab) · Abstract via OpenAlex (publisher-deposited); © the authors/publisher

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Tasks & signals

Tasks

SpO₂

Keywords

fairnessskin-toneSpO2ICUclinical

How it works

How Method works: Setup → Method → TargetSetup: Signals (pulse oximetry, perfusion); Wavelengths (red, IR); Form factor (finger). Method: Method. Target: SpO₂.SetupSignals: pulse oximetry, perfusionSignalspulse oximetry, perfusionWavelengths: red, IRWavelengthsred, IRForm factor: fingerForm factorfingerMethodMethodTargetSpO₂O₂SpO₂
Wavelengths
red, IR

Cite this paper

APA

Sjödin, C., Lindstrand, F. O., Karlsson, N., & Widing, H. (2026). Peripheral Perfusion: The Missing Physiological Variable in ICU Pulse Oximetry Accuracy Studies. Nursing in Critical Care. https://doi.org/10.1111/nicc.70708

BibTeX

@article{sjodin2026peripheral,
  title         = {{Peripheral Perfusion: The Missing Physiological Variable in ICU Pulse Oximetry Accuracy Studies}},
  author        = {Sjödin, Carl and Lindstrand, Felicia Olsson and Karlsson, Natalie and Widing, Hannes},
  year          = {2026},
  journal       = {Nursing in Critical Care},
  doi           = {10.1111/nicc.70708}
}

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