No bowel preparation

No nasogastric placement; if used, remove on the 1st postoperative day

Vasoactive drugs used if need be

Temperature management

Intra-abdominal drains not to be used

Intraperitoneal Ropivicaine infusion

On the 1st postoperative day Nasogastric catheter removed /Urinary catheter removed.

Oral non-opioid analgesia/Drinking 0.5L liquid. Active mobilisation

On the 2nd postoperative day：Drains removed Oral diet was initiated

3-4th postoperative day： Stop oral non opioid analgesia

On the5-6th postoperative day Check discharge criteria

No solid foods at dinner before surgery and no liquids 12 h before surgery. Routine bowel preparation Nasogastric placement on the morning of surgery

Routine use of anesthesia medicine. Standard 5-trocar laparoscopy-assisted procedure. I.V. fluids not restricted (Ringer's lactate 20 ml/kg in the first hour, then at the rate of 10-12 ml/kg/h) Routine use of abdominal drainage tubes and placement of catheters.

1st postoperative day: Keep Nasogastric catheter Removal of urinary catheter Opioid analgesic by intramuscular injection Parenteral nutrition until flatus. I.V. fluids not restricted Mobilization in bed

2nd postoperative day Patient is advised to get out of bed until 24-48h after surgery

3-4th postoperative day： Remove nasogastric tube after flatus Oral liquids started. Encouraged to walk in the ward.

5-6th postoperative day：Oral diet was changed from liquids to semi-fluids and normal food.

Drains removed