Monitorage par spectroscopie proche infrarouge lors d’une chirurgie cardiaque : un concept prometteur ?

Near-infrared spectroscopy (NIRS) is a continuous and noninvasive technology that measures regional tissue oxygen saturation (rSO). A new 4-wavelength generation of NIRS monitors is now available. We aimed to compare peripheral somatic rSO values given by the 4-wavelength EQUANOX™ 7600 device (Nonin Medical Inc., Plymouth, Mn) and O3™ device (Masimo Corporation, Irvine, CA). Twenty adult patients scheduled for conventional elective cardiac surgery with cardiopulmonary bypass over a 4-month period were included after local Ethics Committee approval. For each patient, 2 NIRS sensors (EQUANOX and O3) were placed over the medial part of the forearm. Thirteen couples of measurements were performed at predefined intraoperative time points. We compared 260 couples of absolute intraoperative rSO values. No significant difference was found between both monitors: EQUANOX median rSO 60% (95% CI 57-62) versus O3 median rSO 62% (95% CI 61-64), P = 0.103. Bias was 4.0% and limits of agreement were ±26.3%. Significant correlations were evidenced between EQUANOX and O3 rSO absolute values: rho = 0.758 (95% CI 0.701-0.806), P < 0.0001, and rSO percent maximum difference versus baseline: rho = 0.582 (95% CI 0.188-0.815), P = 0.007. While absolute values of rSO given by both devices were equivalent and well correlated, the clinical agreement is probably not acceptable, meaning that EQUANOX and O3 are not interchangeable in routine practice.

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Four-wavelength near-infrared peripheral oximetry in cardiac surgery patients: a comparison between EQUANOX and O3

Ferraris

Jacquet-Lagrèze

2017

J Clin Monit Comput

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Lower limb peripheral NIRS parameters during a vascular occlusion test: An experimental study in healthy volunteers

Fellahi

Butin

Zamparini

et al. 2014

Annales Françaises d'Anesthésie et de Réanimation

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Dynamic evaluation of near-infrared peripheral oximetry in healthy volunteers: A comparison between INVOS and EQUANOX

Butin

Fischer²,

Zamparini³

et al. 2013

Journal of Critical Care

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Monitorage par spectroscopie proche infrarouge lors d’une chirurgie cardiaque : un concept prometteur ?

Cited by 6 publications

References 6 publications

Four-wavelength near-infrared peripheral oximetry in cardiac surgery patients: a comparison between EQUANOX and O3

Four-wavelength near-infrared peripheral oximetry in cardiac surgery patients: a comparison between EQUANOX and O3

Lower limb peripheral NIRS parameters during a vascular occlusion test: An experimental study in healthy volunteers

Dynamic evaluation of near-infrared peripheral oximetry in healthy volunteers: A comparison between INVOS and EQUANOX

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