Comparison of Sustained Hemodiafiltration with Acetate-Free Dialysate and Continuous Venovenous Hemodiafiltration for the Treatment of Critically Ill Patients with Acute Kidney Injury

Table 4

RRT characteristics by treatment group.

Characteristic	CVVHDF	SHDF	P value
Total number of treatment days/sessions	203	170	—
Mean treatment times (days or sessions) per patient	8.1 ± 3.5	6.6 ± 2.6	NS
Mean duration of daily treatment (h)	15.2 ± 3.8	6.0 ± 1.0	<.0001
Dialysate flow rate (mL/min)	10.8 ± 2.8	471 ± 27	<.0001
Total dialysate flow volume (L/session)	9.6 ± 1.6	169 ± 28	<.0001
Total convective rate (mL/h)	683 ± 159	2006 ± 826	<.0001
replacement fluid rate (mL/h)	549 ± 127	1696 ± 819	<.0001
fluid removal rate (mL/h)	134 ± 58	310 ± 70	<.0001
Total convective volume (L/session)	15.0 ± 4.5	12.0 ± 5.1	NS
Actual delivered dosage (mL/kg/h)	26.6	—	—

CVVHDF: continuous venovenous hemodiafiltration; RRT: renal replacement therapy; SHDF: sustained hemodiafiltration.