TITLE

Differences in displayed pump flow compared to measured flow under varying conditions during simulated cardiopulmonary bypass

AUTHOR(S)
Hargrove, M.; O'Donnell, A.; Aherne, T.
PUB. DATE
July 2008
SOURCE
Perfusion;Jul2008, Vol. 23 Issue 4, p227
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Errors in blood flow delivery due to shunting have been reported to reduce flow by, potentially, up to 40-83% during cardiopulmonary bypass. The standard roller-pump measures revolutions per minute and a calibration factor for different tubing sizes calculates and displays flow accordingly. We compared displayed roller-pump flow with ultrasonically measured flow to ascertain if measured flow correlated with the heart-lung pump flow reading. Comparison of flows was measured under varying conditions of pump run duration, temperature, viscosity, varying arterial/venous loops, occlusiveness, outlet pressure, use of silicone or polyvinyl chloride (PVC) in the roller race, different tubing diameters, and use of a venous vacuum-drainage device.
ACCESSION #
36361570

 

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics