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Table 2 Comparison of operative and postoperative data for enrolled patients grouped by comorbid OSA

From: Is obstructive sleep apnoea associated with hypoxaemia and prolonged ICU stay after type A aortic dissection repair? A retrospective study in Chinese population

Variable Total (n = 83) Obstructive sleep apnoea p value
Yes (n = 41) No (n = 42)
Operative data     
Cardiopulmonary bypass time (min) 194.2 ± 40.5 194.4 ± 33.0 193.9 ± 47.1 0.951
Cross-clamp time (min) 107.3 ± 28.7 108.1 ± 26.1 106.5 ± 31.3 0.778
Antegrade cerebral perfusion time (min) 25.5 ± 7.9 25.7 ± 8.8 25.4 ± 6.9 0.871
Operative time (h) 7.0 (6.0, 8.0) 7.0 (6.0, 8.0) 7.3 (6.0, 8.0) 0.384
Transfused packed red blood cells (unit) 0.0 (0, 4.0) 2.0 (0.0, 4.0) 0.0 (0, 4.0) 0.398
Early surgical Outcomes     
Postoperative hypoxaemia 56 (67.5) 34 (83.0) 22 (52.4) 0.003
Total intubation time (h) 23.3 (20.0, 45.0) 24.6 (21.5, 47.5) 22.4 (19.1, 25.5) 0.026
Length of intensive care unit stay (h) 36.0 (26.0, 75.0) 54.0 (30.0, 87.0) 28.5 (25.0, 52.3) 0.007
Prolonged intensive care unit stay (> 72 h) 22 (26.5) 16 (39.0) 6 (14.3) 0.011
Composite postoperative complications* 53 (63.9) 31 (75.6) 22 (52.4) 0.028
  1. Data are expressed as mean ± SD, median (IQR) or n (%)
  2. *Including sepsis, pulmonary infection, cardiac dysfunction, acute renal failure, re-exploration for bleeding, surgical site infection, stroke, postoperative delirium, paraplegia or paralysis and gastrointestinal bleeding