Effect of blood viscosity on the performance of virtually wall-less venous cannulas.
CONCLUSION: Walls-less cannula showed 5.6% less pump inlet-pressure differences calculated between blood and water, as compared to that of thin-wall cannula (-21 times). Flow differences were 6% and 10% for the walls-less and thin-wall cannula respectively. We conclude that testing the cannula performance with water is a good scenario and can overestimate the flow by a 10%. However, superiority for wall-less is preserved with both water and blood.
PMID: 31696777 [PubMed - as supplied by publisher]
Source: Perfusion - Category: Cardiovascular & Thoracic Surgery Authors: Abdel-Sayed S, Abdel-Sayed P, Berdaj D, Ferrari E, Halbe M, von Segesser LK, Maisano F Tags: Perfusion Source Type: research