Abstract

FERNANDEZ JIMENEZ, Antonio José et al. Vascular access recirculation through glucose infusion test compared to ultrasound dilution technique. Rev Soc Esp Enferm Nefrol [online]. 2009, vol.12, n.2, pp.7-14. ISSN 1139-1375.

Measuring recirculation is very useful for monitoring vascular access. The recommended measurement methods include the ultrasound dilution technique and the glucose infusion test. The study consisted of carrying out two measurements to compare ultrasound dilution with the glucose infusion test in the measurement of recirculation with normal lines and inverted lines, where it was found that, although statistically significant differences were found (p< 0.05), these differences are not clinically relevant, and allow us to use both methods to measure recirculation depending on the available resources. The glucose infusion test has been a fast, reproducible method that is easy to apply, does not require stopping ultrafi ltration, and the necessary materials are low cost and accessible. However, it required a meticulous prior measurement of the arterial line in order to calculate the extraction time for the postinfusion blood sample, and exact precision in the glucose infusion time in order to obtain the post-infusion glucaemia. Ultrasound dilution is also easy to apply, the results can be reproduced, and although it needs calibration of the line it does not require calibration of infusion or blood extraction times, although it requires costly material and regular calibrations.

Keywords : Haemodialysis; Vascular access; Flow measurement; Glucose/Diagnostic use.

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