Enhanced recovery program is safe and improves postoperative insulin resistance in gastrectomy

Figure 1 Schema of the study plan for patients participating in the enhanced recovery after surgery program and those subjected to conventional perioperative treatment. CHO: Carbon hydrogen oxygen; ERAS: Enhanced recovery after surgery; ORS: Oral rehydration solution.

Figure 2 Changes in various serum factors during the perioperative period. A: Rapid turnover proteins; B: Insulin resistance index for all cases (left panel) and for the subgroup of patients in which the preOPE HOMA-R score was over 2.5 (right panel). ALB: Albumin; TTR: Transthyretin; RBP: Retinal-binding protein; Tf: Transferrin; HOMA-R: Homeostatic model analysis ratio-insulin resistance; IRI: Immunoreactive insulin; FBS: Fasting blood sugar; preOPE: Preoperative; POD: Postoperative day.

Figure 3 Scores obtained with the SF8 questionnaire during the perioperative period. PCS: Physical component summary; MCS: Mental component summary; preOPE: Preoperative; POD: Postoperative day; ERAS: Enhanced recovery after surgery.