Comparison of the Accuracy of the Novel PrisMax Continuous Renal Replacement Therapy System to the Classic Prismaflex System

Background/Aims: We assessed how the novel PrisMax continuous renal replacement therapy (CRRT) system performed in an international multicentre setting. The system has multiple novel tools aiming to increase accuracy and dose delivery. Methods: Data was prospectively collected from 7 intensive care units in 6 countries. The PrisMax device data logs constituted the raw material and last generation Prismaflex data was used as comparison. Clinical parameters like treatment time, filter life span, downtime as well as prescribed and delivered dose were recorded. Results: PrisMax delivered/prescribed effluent ratios (mean ± SD) 0.92 ± 0.15 vs. Prismaflex ratios 0.85 ± 0.21, p < 0.001; delivered effluent dose (mL/kg/h) was 18.16 ± 12.93 vs. 10.95 ± 10.96, p < 0.0001; and (Kt/V) 0.76 ± 0.52 vs. 0.44 ± 0.44, p < 0.0001. Moreover, downtime was 27 minutes less for the newer device. Conclusion: The PrisMax CRRT device outperforms its predecessor with regard to dose delivery and accuracy.