Abstract
Monitoring of blood flows in arteriovenous fistulae and arteriovenous grafts is recommended to predict access thrombosis. The ultrasound dilution technique (UDT) is the gold standard. We compare a recently described haemoglobin dilution technique (HDT) with the UDT in measurement of vascular access flow. Access blood flow was measured in 67 stable dialysis patients using HDT by bedside Hemocue (Hemocue AB, Ängelholm, Sweden) and laboratory measurement. Access blood flow was then measured by UDT in the same dialysis session. Median flow rate by UDT was 950 ml/min (IQR 490–1,440 ml/min), by Hemocue HDT 935 ml/min (IQR 475–1,395 ml/min, p = 0.534), and by laboratory haemoglobin HDT 920 ml/min (IQR 463–1,378 ml/min). Bland-Altman plots demonstrated poor agreement between UDT and HDT (limits of agreement for Hemocue HDT –22.7 to 20.1%, for laboratory HDT –21.2 to 20.4%). HDT can be used to measure vascular access flow but requires validation against clinical outcomes before being recommended as an alternative to UDT.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
