Progrès de la photopléthysmographie: au-delà de la saturation artérielle en oxygène

Translated title of the contribution: Advances in photoplethysmography: beyond arterial oxygen saturation

Karsten Bartels, Robert H. Thiele

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Purpose: Photoplethysmography permits continuous measurement of heart rate and peripheral oxygen saturation and has been widely used to inform clinical decisions. Recently, a myriad of noninvasive hemodynamic monitoring devices using this same technology have been increasingly available. This narrative review aims to summarize the principles that form the basis for the function of these devices as well as to comment on trials evaluating their accuracy and clinical application. Principal findings: Advanced monitoring devices extend photoplethysmography technology beyond measuring oxygen concentration and heart rate. Quantification of respiratory variation of the photoplethysmographic waveform reflects respiratory variation of the arterial pressure waveform and can be used to gauge volume responsiveness. Both the volume-clamp and physiocal techniques are extensions of conventional photoplethysmography and permit continuous measurement of finger arterial blood pressure. Finger arterial pressure waveforms can subsequently inform estimations of cardiac output. Conclusions: Although respiratory variations of the plethysmographic waveform correlate only modestly with the arterial blood pressure waveform, fluid responsiveness can be relatively consistently assessed using both approaches. Continuous blood pressure measurements obtained using the volume-clamp technique may be as accurate as conventional brachial noninvasive blood pressure measurements. Most importantly, clinical comparative effectiveness studies are still needed in order to determine if these technologies can be translated into improvement of relevant patient outcomes.

Translated title of the contributionAdvances in photoplethysmography: beyond arterial oxygen saturation
Original languageFrench
Pages (from-to)1313-1328
Number of pages16
JournalCanadian Journal of Anesthesia
Volume62
Issue number12
DOIs
StatePublished - Dec 1 2015
Externally publishedYes

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

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