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抗生素的更新换代，明显减少了肛肠外科手术并发症，提高了复杂手术的成功率［１］。然而，如何正确应用抗生素，使之在发挥最大功效的同时尽可能减少因滥用抗生素而导致的耐药菌增多，则是临床工作者应予以高度重视的问题。作者通过对１７５例直肠癌患者不同方法应用抗生素的
The replacement of antibiotics significantly reduced the complications of anorectal surgery and improved the success rate of complex surgery [1]. However, how to correctly apply antibiotics to maximize the effectiveness while minimizing the increase in resistant bacteria caused by the abuse of antibiotics is a problem that clinicians should attach great importance to. The authors used antibiotics in different methods for 175 patients with rectal cancer