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Published in: Critical Care 1/2016

Open Access 01-12-2016 | Review

Volumetric capnography: lessons from the past and current clinical applications

Authors: Sara Verscheure, Paul B. Massion, Franck Verschuren, Pierre Damas, Sheldon Magder

Published in: Critical Care | Issue 1/2016

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Abstract

Dead space is an important component of ventilation–perfusion abnormalities. Measurement of dead space has diagnostic, prognostic and therapeutic applications. In the intensive care unit (ICU) dead space measurement can be used to guide therapy for patients with acute respiratory distress syndrome (ARDS); in the emergency department it can guide thrombolytic therapy for pulmonary embolism; in peri-operative patients it can indicate the success of recruitment maneuvers. A newly available technique called volumetric capnography (Vcap) allows measurement of physiological and alveolar dead space on a regular basis at the bedside. We discuss the components of dead space, explain important differences between the Bohr and Enghoff approaches, discuss the clinical significance of arterial to end-tidal CO2 gradient and finally summarize potential clinical indications for Vcap measurements in the emergency room, operating room and ICU.
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Metadata
Title
Volumetric capnography: lessons from the past and current clinical applications
Authors
Sara Verscheure
Paul B. Massion
Franck Verschuren
Pierre Damas
Sheldon Magder
Publication date
01-12-2016
Publisher
BioMed Central
Published in
Critical Care / Issue 1/2016
Electronic ISSN: 1364-8535
DOI
https://doi.org/10.1186/s13054-016-1377-3

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