Table 3 Serum sodium concentrations and postoperative outcomes
Outcomes | Prior to CPB (mmol/L) | Lowest during CPB (mmol/L) | After CPB (mmol/L) | ||||||
|---|---|---|---|---|---|---|---|---|---|
≤135 | >135 | P | ≤130 | >130 | P | ≤145 | >145 | P | |
ICU morbidity, events [n (%)] | 12/21 (57 %) | 58/254 (23 %) | 0.001 | 4/32 (13 %) | 66/243 (27 %) | 0.074 | 31/189 (16 %) | 39/86 (45 %) | <0.001 |
Length of ICU stay, days [median (range)] | 5 (3–10) | 2 (1–13) | <0.001 | 2 (2–9) | 2 (1–13) | 0.057 | 2 (1–10) | 3.5 (2–13) | <0.001 |
Length of hospital stay, days [median (range)] | 9 (7–22) | 7 (5–21) | <0.001 | 7 (5–13) | 7 (5–22) | 0.900 | 7 (5–19) | 8.5 (6–22) | <0.001 |