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Table 2 Perioperative data

From: Acute kidney injury in septua- and octogenarians after cardiac surgery

Variable Septuagenarians
(n = 299)
Octogenarians
(n = 299)
p-value
Aortic cross-clamp time [min] 60 (46; 80) 57 (43; 75) 0.02
ICU-stay [days] 1 (1; 4) 2 (1; 4) 0.87
Hospital stay [days] 12 (10; 16) 13 (10; 17) 0.24
Respiratory failure [%]A 8.4 9.0 0.89
Ventilation time [hours] 12 (9; 18) 12 (9; 19) 0.25
Re-Intubation [%] 6 7.7 0.52
Temporary tracheotomy [%] 2.7 3.3 0.81
Central neurological event [%]B 2.7 5.4 0.14
Redo-Thoracotomy [%] 10 5.4 0.05
Drain loss [mL] 500 (300; 800) 450 (300; 750) 0.18
Use of left internal mammary artery [%]C 89 86 0.85
Use of left internal mammary artery [%]D 71 64 0.39
Number diseased vesselsD 2 3 0.21
Number of grafts [n] 2 (2; 3) 3 (3; 2) 0.67
Low cardiac output syndrome [%] 2 3 0.60
  1. A - Decrease pO2 ≤50 mmHg ± increase pCO2 > 60 mmHg, tachypnea > 40/min.
  2. B - Including transient/prolonged ischemic neurological deficit and stroke.
  3. C - Only in patients with isolated bypass and combined valve/bypass surgery.
  4. D - Only patients with combined valve/coronary surgery.
  5. E - Data shown as median.