Table 2.
Procedural details, fluid balance, catecholamine therapy and perioperative hypotension
| Characteristics | Total (n = 199) |
NT-proBNP ≤ 450 pg/ml (n = 129) |
NT-proBNP > 450 pg/ml (n = 70) |
p |
|---|---|---|---|---|
| Procedural details | ||||
| Duration of intervention [IQR] - min | 115 [75–163] | 119 [70–181] | 105 [81–154] | 0.37 |
| Duration of anaesthesia [IQR] - min | 205 [152–284] | 197 [149–294] | 209 [155–270] | 0.985 |
| Fluid balance | ||||
| Perioperative fluid balance [IQR] - ml | 950 [480–1280] | 950 [480–1350] | 960 [400–1220] | 0.775 |
| Amount of colloids [IQR] - ml | 0 [0–500] | 0 [0–500] | 0 [0–500] | 0.919 |
| Amount of crystalloids [IQR] - ml | 1132 [1000–1280] | 1083 [1000–1656] | 1227 [1000–1643] | 0.675 |
| Amount of fluid by autotransfusion [IQR] - ml | 0 [0–0] | 0 [0–0] | 0 [0–0] | 0.175 |
| Amount of red blood cell concentrate [IQR] - ml | 0 [0–0] | 0 [0–0] | 0 [0–0] | 0.100 |
| Amount of fresh frozen plasma [IQR] - ml | 0 [0–0] | 0 [0–0] | 0 [0–0] | 0.345 |
| Blood loss [IQR] - ml | 200 [50–400] | 150 [50–400] | 250 [50–500] | 0.260 |
| Urinary output [IQR] - ml | 350 [20–720] | 300 [0–785] | 445 [150–621] | 0.182 |
| Catecholamine therapy | ||||
| Cumulative amount of norepinephrine [IQR] - μg | 178 [0–554] | 83 [0–436] | 261 [4–784] | 0.007 |
| Cumulative amount of epinephrine [IQR] - μg | 0 [0–0] | 0 [0–0] | 0 [0–0] | 0.175 |
| Perioperative Hypotension | ||||
| Incidence - no. (%) | 176 (88.4) | 114 (88.4) | 62 (89.0) | 0.966 |
| Absolute duration [IQR] - min | 14.6 [3.8–28.3] | 15.7 [3.3–29.2] | 13.8 [5.8–27.6] | 0.786 |
| Relative duration [IQR] - % | 6.7 [1.9–13.5] | 6.8 [1.9–13.6] | 6.7 [2.1–12.2] | 0.938 |
| AUC [IQR] – min × mmHg | 60.7 [11.5–168.6] | 58.8 [10.5–167.0] | 62.9 [20.2–180.4] | 0.655 |
| Relative AUC [IQR] – min × mmHg/% | 25.5 [6.2–73.9] | 24.4 [4.7–71.0] | 28.2 [9.4–84.6] | 0.624 |
Hypotension was defined as mean arterial pressure < 65 mmHg. Abbreviations: AUC = area under the curve