Table 3 CVVHDF parameters.

From: Efficacy of continuous venovenous hemodiafiltration in patients with metformin associated lactic acidosis and acute kidney injury

CVVHDF parameters

Mean (ranges)

Qb (ml/min)

162.6 (100–245)

Qinf (ml/kg/h)

31.9 (20-58.3)

Qinf pre (ml/kg/h)

18.4 (12.5–30.1)

Qinf post (ml/kg/h)

13.5 (4.6–33.3)

Qd (ml/kg/h)

19.8 (14.3–30.1)

Qeff (ml/kg/h)

52.1 (34.3–76.7)

Mean TMP*

(mmHg)

92.1 (44.3-162.6)

Duration (h)

56.2 (6-120)

Downtime (min)

17.8 (0-120)

  1. CVVHDF: continuous venovenous hemodiafiltration; Qb: blood flow; Qinf: infusion flow, total and pre and post filter, Qd: dialysate flow, Qeff: effluent flux including ultrafiltration, TMP: transmembrane pressure
  2. * Average of every 6 h TMP value
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