Table 2 The perioperative total blood loss, hemoglobin loss, and drainage volume

Total blood loss (ml)

543 ± 219

880 ± 268

 < 0.001*

Hb drop (g/dl)

Postoperative day 1

Postoperative day 3

Postoperative day 7

1.28 ± 0.68

1.54 ± 0.66

1.74 ± 0.66

1.91 ± 0.69

2.69 ± 1.00

2.83 ± 0.91

0.001*

 < 0.001*

 < 0.001*

Drainage volume (ml)

0–24 h after surgery

24–48 h after surgery

Total volume

179 ± 101

122 ± 84

300 ± 141

293 ± 149

96 ± 73

386 ± 189

 < 0.001*

0.217

0.051