The Reliability of the Use of Serum Neutrophil Gelatinase–Associated Lipocalin Levels in the Assessment of Renal Functions after Coronary Artery Bypass Grafting
Table 1
Perioperative patient variables.
Variable
n
%
Mean ± SD
Min.–max.
95% CI
Preoperative
Age (year)
58.7 ± 8.6
40–79
56–61.2
Female gender (F)
10
25
Body mass index (kg/m2)
28.5 ± 4.3
23–42
27.3–30
Body surface area (m2)
1.9 ± 0.2
1.5–2.3
1.8–1.9
Hypertension
35
87.5
Hyperlipidemia
26
65
Diabetes mellitus
16
40
Intraoperative
Aortic cross clamping time (min)
60.2 ± 28.1
12–110
51.2–68.7
Total perfusion time (min)
92.4 ± 34.9
35–151
81.8–102.9
Distal bypass
2 ± 0.9
1–4
1.8–2.3
Postoperative
Extubation time (hour)
14 ± 14.4
4–95
10.7–18.9
ICU follow-up (hour)
49.5 ± 19.1
40–120
44.2–55.9
Kidney injury
8
20
Hospital stay (day)
8.4 ± 3
6–19
7.6–9.4
CI: confidence interval; F/M: female/male; ICU: intensive care unit; Min.: minimum; Max.: maximum; SD: standard deviation; during the postoperative 5-day period according to the RIFLE (Risk-Injury-Failure-Loss-End stage) classification.
