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Influence of Bag Volume Variation in Inert Gas Rebreathing Pulmonary Blood Flow Measurements on the Reproducibility in Patients With Pulmonary Diseases
Non-invasive inert gas rebreathing (IGR) based on the Fick Principle showed promising results in the determination of pulmonary blood flow (PBF). The volume of the rebreathing bag (Vbag) is proposed by the system, however, elderly patients or those suffering from high grade pulmonary diseases might be unable to entirely rebreathe this volume and therefore fail to completely mix the test gases. The aim of our study is to evaluate the effect of adapting Vbag on the reproducibility of IGR measurements in patients with obstruction (group A), restriction (group B) and pulmonary healthy controls (group C).
Age
18 - 90 years
Sex
ALL
Healthy Volunteers
Yes
University Hospital Mannheim
Mannheim, Germany
Start Date
September 1, 2007
Primary Completion Date
December 1, 2010
Completion Date
December 1, 2010
Last Updated
January 8, 2013
45
ACTUAL participants
Lead Sponsor
Universitätsmedizin Mannheim
NCT07477600
NCT05878769
NCT06717659
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