Table 2 Comparison of preoperative and operative variables of patients in delirium and non delirium groups
Variable | Delirium, N = 8 | Non delirium, n = 91 | P-value |
|---|---|---|---|
Preoperative and Demographic variables | |||
Gender, n (%) | 0.6891 | ||
Male | 5 (62.5) | 65 (71) | |
Female | 3 (37.5) | 26 (29) | |
Age, years (mean ± SD) | 69.9 ± 6.3 | 67.4 ± 7.9 | 0.5802 |
Weight, kg (mean ± SD) | 92.6 ± 15.9 | 84.7 ± 13.4 | 0.2523 |
Height,cm (mean ± SD) | 168.6 ± 10.7 | 169.7 ± 8.1 | 0.7429 |
EuroScore (mean ± SD) | 2 ± 1 | 2 ± 1.5 | 0.7635 |
NYHA >2 (n (%)) | 1.000 | ||
1–2 | 0 (0) | 8 (15) | |
>2 | 8 (100) | 78 (85) | |
LVEF, %(mean ± SD) | 46.3 ± 7.4 | 50.2 ± 6.8 | 0.1602 |
STS predicted mortality | 3.2 ± 3.4 | 1.8 ± 1.9 | 0.2030 |
STS predicted morbidity/mortality | 25.3 ± 21.2 | 15.7 ± 10.5 | 0.2202 |
Malnutrition (NRS 2002), n (%) | 0.0191 | ||
Absent | 3 (37.5) | 72 (79.1) | |
Present | 5 (62.5) | 19 (20.9) | |
Smoking history,n (%) | 0.6759 | ||
Absent | 6 (75) | 72 (79) | |
Present | 2 (25) | 19 (21) | |
Alcohol abuse,n (%) | 1.0000 | ||
Absent | 8 (100) | 88 (97) | |
Present | 0 (0) | 3 (3) | |
Diabetes,n (%) | 0.4126 | ||
Absent | 5 (62.5) | 69 (76) | |
Present | 3 (37.5) | 22 (24) | |
Peripheral vascular disease,n (%) | 0.3832 | ||
Absent | 5 (62.5) | 71 (78) | |
Present | 3 (37.5) | 20 (22) | |
Hypertension,n (%) | 1.000 | ||
Absent | 0 (0) | 4 (4) | |
Present | 8 (100) | 87 (96) | |
COPD,n (%) | 1.000 | ||
Absent | 8 (100) | 84 (92) | |
Present | 0 (0) | 7 (8) | |
Renalfailure,n (%) | 1.000 | ||
Absent | 8 (100) | 89 (98) | |
Present | 0 (0) | 2 (2) | |
MI,n (%) | 1.000 | ||
Absent | 4 (50) | 40 (44) | |
Present | 4 (50) | 51 (56) | |
MI <30 days,n (%) | 0.6806 | ||
Absent | 5 (62.5) | 66 (74) | |
Present | 3 (37.5) | 24 (26) | |
Preoperative Hb, g/l (mean ± SD) | 127.8 ± 7.8 | 137.1 ± 14.9 | 0.0442 |
Operative values | |||
Surgery time, min. (mean ± SD) | 223.1 ± 41.6 | 217.7 ± 46.3 | 0.7188 |
CPB time,min. (mean ± SD) | 103.0 ± 19.7 | 103.1 ± 29.9 | 0.8865 |
Ao cross clamp time, min. (mean ± SD) | 60.8 ± 11.4 | 66.3 ± 19.2 | 0.2982 |