Table 3.
Types of surgical operation and perioperative patient characteristics and outcomes associated with delirium
| Surgical operation | Number of patients, N (%) | Outcome (delirium)
|
p-value | |
|---|---|---|---|---|
| No | Yes | |||
| CABG | 0.032a | |||
| No | 71 (44.7) | 14 (70.0) | ||
| Yes | 94 (52.5) | 88 (55.3) | 6 (30.0) | |
| AVR/MVR | 0.267a | |||
| No | 117 (73.6) | 17 (85.0) | ||
| Yes | 45 (25.1) | 42 (26.4) | 3 (15.0) | |
| Bentall/±ascending aorta (±arch) replacement | 0.746a | |||
| No | 148 (93.1) | 19 (95.0) | ||
| Yes | 12 (6.7) | 11 (6.9) | 1 (5.0) | |
| AVR + MVR (± CABG) | <0.001a | |||
| No | 146 (91.8) | 10 (50.0) | ||
| Yes | 23 (12.8) | 13 (8.2) | 10 (50.0) | |
| ASD/VSD | 0.549a | |||
| No | 154 (96.9) | 20 (100.0) | ||
| Yes | 5 (2.8) | 5 (3.1) | 0 (0.0) | |
| Transfer to HDU | 0.321c | |||
| No | 158 (88.3) | 139 (87.4) | 19 (95.0) | |
| Yes | 21 (11.7) | 20 (12.6) | 1 (5.0) | |
| Blood transfusion | 0.157a | |||
| No | 166 (92.7) | 149 (93.7) | 17 (85.0) | |
| Yes | 13 (7.3) | 10 (6.3) | 3 (15.0) | |
| EuroSCORE IIb,c | 6.2 (8.9)/1.1 (13.7) | 1.7 (2/6)/3.7 (5.9) | 3.7 (5.3)/6.3 (6.6) | 0.001d |
Notes: Values are presented as n (%) unless they are mentioned otherwise.
a
χ2 test,
b
median (interquartile range),
c
mean (standard deviation),
d
Mann–Whitney test. Bold data are statistically significant.
Abbreviations: ASD, atrial septal defect; AVR, aortic valve replacement; CABG, coronary artery bypass grafting; HDU, high-dependency unit; ICU, intensive care unit; MVR, mitral valve replacement; VSD, ventricular septal defect.