Table 1.
Conventional indications for RRT
| Indication | Reported Any Time before RRT (134) | First Indication | ||
|---|---|---|---|---|
| All (134) | Classic-Urgent (90) | Classic-Delayed (44) | ||
| Time from admission to indication (h) | — | 0.5 [0.0–3.3] | 0.4 [0.0–1.6] | 1.8 [0.3–16.7] |
| Time from indication to RRT (h) | — | 4.8 [1.9–17.7] | 2.5 [0.9–4.9] | 23.8 [17.7–43.2] |
| Hyperkalemia K≥6 mEq/L | 41 (30.6) | 25 (18.7) | 20 (22.2) | 5 (11.4) |
| Severe acidosis (pH≤7.15) | 70 (52.2) | 48 (35.8) | 26 (28.9) | 22 (50.0) |
| Plasma urea>36 mmol/La | 26 (19.4)b | 15 (11.2) | 14 (15.6) | 1 (2.3) |
| Oliguria or anuria (urine output<0.3 ml/kg per hour for ≥24 h or anuria for ≥12 h) | 40 (29.9) | 39 (29.1) | 28 (31.1) | 11 (25.0) |
| Fluid overload with pulmonary edemac | 12 (9.0) | 7 (5.2) | 2 (2.2) | 5 (11.4) |
Data are expressed as number (percentage) or median [interquartile range].
a
Equals BUN of 100.8 mg/dl.
b
Thirteen of 26 (50.0%) patients also had at least one other conventional indication.
c
All components listed had to be met: fluid accumulation>10% of weight, respiratory Sequential Organ Failure Assessment score≥3, and oliguria (urine output criteria for AKI stage 2 or 3 present). Stage 2, urine output<0.5 ml/kg per hour for ≥12 hours; stage 3, urine output<0.3 ml/kg per hour for ≥24 hours or anuria for ≥12 hours.