Table 4 Clinical outcomes by the tertile according to the recovery slope on postoperative day 1
From: Microvascular reactivity and clinical outcomes in cardiac surgery
Totala | Totalb | Lowest tertile | Middle tertile | Highest tertile | P value | |
|---|---|---|---|---|---|---|
(n = 232) | (n = 173) | (n = 58) | (n = 57) | (n = 58) | ||
Composite complications | 81 (34.9 %) | 58 (33.5 %) | 28 (48.3 %) | 18 (31.6 %) | 12 (20.7 %) | 0.007 |
In-hospital mortality | 6 (2.6 %) | 5 (2.9 %) | 2 (3.4 %) | 2 (3.5 %) | 1 (1.7 %) | 0.809 |
Myocardial infarction | 2 (0.9 %) | 2 (1.2 %) | 0 (0.0 %) | 1 (1.8 %) | 1 (1.7 %) | 0.600 |
Acute kidney injury | ||||||
RIFLE Risk category | 56 (24.1 %) | 38 (22.0 %) | 16 (27.6 %) | 13 (22.8 %) | 9 (15.5 %) | 0.287 |
RIFLE Injury category | 28 (12.1 %) | 20 (11.6 %) | 10 (17.2 %) | 6 (10.5 %) | 4 (6.9 %) | 0.210 |
RIFLE Failure category | 25 (10.8 %) | 20 (11.6 %) | 12 (20.7 %) | 5 (8.8 %) | 3 (5.2 %) | 0.024 |
Renal replacement therapy | 15 (6.5 %) | 14 (8.1 %) | 8 (13.8 %) | 4 (7.0 %) | 2 (3.4 %) | 0.116 |
Acute respiratory distress syndrome | 7 (3.0 %) | 7 (4.0 %) | 3 (5.2 %) | 3 (5.3 %) | 1 (1.7 %) | 0.545 |
Persistent cardiogenic shock | 32 (13.8 %) | 24 (13.9 %) | 15 (25.9 %) | 7 (12.3 %) | 2 (3.4 %) | 0.002 |
Initial SOFA | 9 (8–11) | 5 (3–7) | 6 (3–9) | 5 (3–8) | 3 (4–9) | 0.005 |
Maximum SOFA | 12 (10–14) | 6 (4–9) | 7 (4–10) | 7 (4–9) | 5 (3–7) | 0.001 |
Mechanical ventilation-free days, days 1 to 28 | 27.2 (27.0–27.4) | 27.2 (27.0–27.4) | 27.1 (26.2–27.3) | 27.3 (27.0–27.4) | 27.3 (27.2–27.5) | 0.004 |
Intensive care unit length of stay, days | 4 (3–6) | 4 (3–6) | 5 (3–8) | 3 (2–6) | 3 (2–5) | 0.004 |
Hospital length of stay, days | 11 (11–18) | 11 (8–18) | 14 (10–29) | 12 (9–17) | 9 (8–15) | 0.002 |