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Table 4 Haemodynamic variables at the time of intolerance to renal replacement therapy (n = 13)

From: The passive leg raising test to guide fluid removal in critically ill patients

  Before renal replacement therapy At the previous record before intradialytic hypotension At the time of intradialytic hypotension
Time elapsed since the onset of RRT (min) 120 [60–180] 130 [100–220]
Volume removed (mL) 1980 [1320–2000] 2000 [1000–3000]
Heart rate (beats/min) 95 [89–98] 91 [88–98] 97 [90–104]
Systolic arterial pressure (mmHg) 117 [102–131] 108 [100–111] 90 [76–95]
Mean arterial pressure (mmHg) 87 [79–89] 68 [66–76] 62 [52–65]*
Diastolic arterial pressure (mmHg) 65 [63–71] 57 [48–53] 47 [43–53]*
Cardiac index (L/min/m2) 3.0 [2.3–3.2] 2.1 [1.5–2.5] 1.7 [1.2–2.1]*
Global end-diastolic volume (mL/m2) 700 [626–749] 651 [500–728] 600 [554–619]
Extravascular lung water (mL/kg) 8 [7–14] 7 [6–8] 8 [7–12]
Cardiac function index (min−1) 4 [3.5–5.0] 3.7 [3.4–5.0] 3.4 [2.6–4.9]
Dose of norepinephrine (µg/kg/min) (in 5 patients) 0.24 [0.21–0.32] 0.24 [0.21–0.32] 0.24 [0.21–0.32]
Decision
 Interruption of RRT (no, %) 10 (77 %)
 Increase of norepinephrine (no, %) 3 (23 %)
  1. Values are expressed as median [interquartile range] or number and frequency in %
  2. RRT renal replacement therapy
  3. p < 0.05 versus at the previous record before hypotension