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Table 2 The test and data acquisition schedule for this experiment. Intraoperative anal water injection experiments and infiltration by ICG fluorescence were performed to ensure the quality of the anastomosis

From: Are preoperative oral antibiotics effective in reducing the incidence of anastomotic leakage after colorectal cancer surgery? Study protocol for a prospective, multicentre, randomized controlled study

Trial flow chart

Stage

Preoperative

Intraoperative

Postoperative

Unplanned follow-up

Follow up period

2–3 days

1 day

 Intraoperative

1 day

3 days

5 days

14 days

30 days

Unplanned follow-up

Baseline data collected

inclusion and exclusion

Sign informed consent

Group determination

Fill in the basic information

Physical examination

Imaging examination

If necessary

If necessary

If necessary

If necessary

Blood routine examination

If necessary

If necessary

Oral antibiotics

If necessary

Safety observation

If necessary

Operational observation

If necessary

Record adverse events

If necessary

Other works

If necessary