Table 3: Perioperative clinical parameters of glucose tolerance

Preoperative Postoperative
Body weight (kg) 67.1 67.3
BMI (kg/m2) 21.7 21.8
Fasting plasma glucose (mg/dL) 100 91
Fasting plasma insulin (μU/mL) 1.7 1.3
Fasting plasma C-peptide (ng/mL) 0.9 1.1
AST (IU/l) 23 25
ALT (IU/l) 20 33
IGF-1 (ng/mL) 201 100
HbA1c (%) 5.8 6.1
Insulinogenic index 0.19 0.18
HOMA-IR 0.54 0.29
Matsuda Index 11.59 22.12

BMI: body mass index
AST: aspartate aminotransferase
ALT: alanine aminotransferase
IGF-1: insulin-like growth factor-1
HOMA-IR: homeostasis model assessment insulin resistance index