Table 2 Characteristics before and after the first renal replacement therapy (RRT) session.
From: Natraemia variations induced by acute dialysis in critically ill patients: a database study
N = 215 patients | N (%) or Median [interquartile range] | ||
|---|---|---|---|
Before 1st RRT | After 1st RRT | p value | |
Clinical characteristics | |||
Weight (kg) | 80.0 [69.1–92.6] | 85.0 [71.1–97.3] | 0.12 |
Temperature (°C) | 36.6 [35.9–37.3] | 36.8 [36.2–37.3] | < 0.001 |
MAP (mmHg) | 74 [67–84] | 79 [68–87] | 0.03 |
HR (bpm) | 92 [73–113] | 94 [79–113] | 0.11 |
RR (bpm) | 22 [19–27] | 22.0 [19–27] | 0.74 |
SpO2 (%) | 97 [95–99] | 97 [95–99] | 0.82 |
Urine output (mL/kg/h) | 0.11 [0.00–0.68] | 0.06 [0.00–0.36] | 0.08 |
Mechanical ventilation | 132 (61.4) | 135 (62.8) | 0.05 |
Catecholamine infusion | 124 (57.6) | 129 (60.0) | 0.03 |
Biological characteristics | |||
Sodium (mmol/L) | 135 [131–139] | 140 [137–143] | < 0.001 |
Glycaemia (mmol/l) | 7.8 [6.0–11.7] | 6.4 [5.3–8.2] | < 0.001 |
Blood urea (mmol/L) | 19.7 [12.2–31.8] | 8.2 [5.1–15.2] | < 0.001 |
Calculated osmolarity (mmol/L) | 274 [266–282] | 283 [276–288] | < 0.001 |
Potassium (mmol/L) | 4.8 [4.1–5.6] | 4.1 [3.7–4.5] | < 0.001 |
Bicarbonate (mmol/L) | 17.4 [14.5–21.4] | 22.5. [19.4–25.4] | < 0.001 |
Protein (g/L) | 58.0 [52.0–64.0] | 57.5 [53.0–63.8] | 0.86 |
Albumin (g/L) | 24.5 [19.0–29.0] | 25.0 [19.0–28.5] | 0.93 |
Haemoglobin (g/dL) | 10.0 [8.4–12.2] | 9.9 [8.3–11.8] | 0.002 |
Creatinine (μmol/L) | 257 [162–513] | 141 [93–301] | < 0.001 |
pH | 7.24 [7.16–7.34] | 7.36 [7.26–7.43] | < 0.001 |
Lactate (mmol/L) | 2.4 [1.0–7.0] | 2.3 [1.2–6.1] | 0.02 |
Dialysate-to-serum Na+ gradient (mmol/L) | 12.0 [8.0–16.0] | 7.0 [4.5–10.0] | < 0.001 |
∆Na+ (mmol/L) | – | 5.0 [1.0–7.5] | – |
∆Osmolarity (mmol/L) | – | 8.1 [0.7–13.8] | – |
