• 1. The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China;
  • 2. Department of Gastrointestinal Surgery/Hernia and Abdominal Wall Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China;
YU Yongjiang, Email: ylongy@163.com
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Objective  To understand the changes of intestinal flora during perioperative period of colorectal cancer and the mechanism affecting the occurrence of postoperative anastomotic leakage, so as to improve perioperative management of patients and find possible measures to decrease the incidence rate of anastomotic leakage. Method  The literature related to perioperative intestinal flora assessment, anastomotic healing, and anastomotic leakage of colorectal cancer in recent years was comprehensively searched in the CNKI, PubMed, and Embase databases and made an review. Results Due to the various perioperative interventions, the diversity and abundance of intestinal flora had changed after colorectal cancer surgery, and some conditional pathogenic bacteria such as Enterococcus faecalis, Pseudomonas aeruginosa, etc. increased obviously, which led to collagen degradation through the expression of bacterial collagenase or the excessive activation of matrix metalloproteinases in the host intestine, then might lead to the poor anastomotic healing and even the anastomotic leakage. Conclusion Although the evidence of effect of intestinal flora on anastomotic leakage mainly comes from animal experiments, it still shows the potential role of intestinal flora in the occurrence of anastomotic leakage after colorectal cancer surgery, and can be regulated by perioperative intervention, which suggests that it may provide a new strategy for prevention of anastomotic leakage.

Citation: WANG Chaoyang, LIN Hao, ZHANG Haibao, JU Jiahua, YU Yongjiang. Research progress of effect of intestinal flora on anastomotic leakage following colorectal cancer surgery. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2022, 29(11): 1522-1527. doi: 10.7507/1007-9424.202205030 Copy

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