Table 3 Changes in perioperative factors

Serum lactate level

Intraoperative peak (mmol/L)

1.9 [1.2–2.8]

Postoperative day 2

      Decrease and no change

222 (82%)

      Increase by 0–1 mmol/L, n (%)

47 (17%)

      Increase by > 1 mmol/L, n (%)

3 (1%)

Body weight increase

Immediate after surgery (kg)

 + 1.85 [1.1–2.6]

Postoperative day 2 (kg)

 + 2.3 [1.5–3.1]