Table 2.
Perioperative data.
| Standard working hours (group 1) n=61 | Overtime hours (group 2) n=145 | P | |||
|---|---|---|---|---|---|
| Mean±sd/n-% | Med | Mean±sd/n-% | Med | ||
| Cross-clamp time (min) | 121.9±36.1 | 116.0 | 123.2±37.7 | 120.0 | 0.835m |
| CPB time (min) | 181.0±59.7 | 181.0 | 184.7±55.4 | 176.0 | 0.614m |
| Operating time (min) | 340.0±93.1 | 322.0 | 342.9±81.1 | 330.0 | 0.840m |
| Root intervention | 23 37.7% | 38 26.2% | 0.099X2 | ||
| Hemiarch intervention | 26 42.6% | 48 33.1% | 0.194X2 | ||
| Total arch intervention | 11 18.0% | 32 22.1% | 0.515X2 | ||
| Only ascending aortic intervention | 24 39.3% | 65 44.8% | 0.468X2 | ||
| Weaning time (H) | 25.8±19.3 | 22.0 | 30.9±25.2 | 23.5 | 0.201m |
| ICU time (days) | 5.6±4.7 | 4.0 | 6.5±13.9 | 4.0 | 0.293m |
| Hospital discharge time (days) | 11.9±7.0 | 9.0 | 13.1±13.8 | 10.0 | 0.527m |
| Postoperative drainage (ml) | 874±413 | 850 | 903±525 | 800 | 0.827m |
| Blood product (IU) | 3.5±2.5 | 3.0 | 4.0±3.2 | 3.0 | 0.331m |
| POAKI | 9 14.8% | 25 17.2% | 0.661X2 | ||
| Reoperation for bleeding | 20 32.8% | 47 32.4% | 0.958X2 | ||
| Prolonged intubation | 27 44.3% | 75 51.7% | 0.328X2 | ||
| Neurological complication | 8 13.1% | 18 12.4% | 0.890X2 | ||
| Mortality | 6 9.8% | 20 13.8% | 0.485X2 | ||
CPB=cardiopulmonary bypass; ICU=intensive care unit, POAKI=postoperative acute kidney injury. m: Mann-Whitney U test; X2 Chi-square test (Fisher’s test).