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Critical Care
Published in: Critical Care 5/2014

Open Access 01-10-2014 | Commentary

Analyzing the value of monitoring duodenal mucosal perfusion using photoplethysmography

Author: Mitchell P Fink

Published in: Critical Care | Issue 5/2014

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Abstract

Photoplethysmography (PPG) is a technique that permits noninvasive measurement of changes in the volume of tissues. A novel device uses PPG to assess changes in duodenal mucosal perfusion. When tested in septic piglets, data obtained using this device correlate with the blood lactate concentration and duodenal serosal microvascular blood flow as measured with a laser Doppler flowmeter. This new PPG-based approach for continuously monitoring gut mucosal perfusion warrants further development, leading to prospective clinical trials in patients.
Literature
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Allen J: Photoplethysmography and its application in clinical physiological measurement. Physiol Meas. 2007, 28: R1-R39. 10.1088/0967-3334/28/3/R01.PubMedCrossRef
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Gutierrez G, Palizas F, Doglio G, Pusajo J, Wainsztein N, Klein F, Gallesio A, San Roman E, Pacin J, Dorfman B, Dubin A, Schiavi E, Shottender J, Jorge M, Giniger R, et al: Gastric intramucosal pH as a therapeutic index of tissue oxygenation in critically ill patients. Lancet. 1992, 339: 195-199. 10.1016/0140-6736(92)90002-K.PubMedCrossRef
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Uusaro A, Ruokonen E, Takala J: Gastric mucosal pH does not reflect changes in splanchnic blood flow after cardiac surgery. Br J Anaesth. 1995, 74: 149-154. 10.1093/bja/74.2.149.PubMedCrossRef
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Boyd O, Mackay CJ, Lamb G, Bland JM, Grounds RM, Bennett ED: Comparison of clinical information gained from routine blood-gas analysis and from gastric tonometry for intramural pH. Lancet. 1993, 341: 142-146. 10.1016/0140-6736(93)90005-2.PubMedCrossRef
Metadata
Title
Analyzing the value of monitoring duodenal mucosal perfusion using photoplethysmography
Author
Mitchell P Fink
Publication date
01-10-2014
Publisher
BioMed Central
Published in
Critical Care / Issue 5/2014
Electronic ISSN: 1364-8535
DOI
https://doi.org/10.1186/s13054-014-0561-6

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