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近40年来,由于肠道抗菌法的发展,已使术后死亡率和腹腔感染率明显降低,切口感染率降至3%。现分述如下。肠道的机械准备手术时需切开肠壁,细菌污染是无法绝对避免的。但是良好的肠道准备,可使细菌污染减少到最低程度。Irvin指出,当肠道准备不好时,吻合口裂开可达24%,而准备好的肠道仅为6%。切口感染不仅与细菌的种类、毒力有关,还取决于细菌的数日.当细菌在种植时的数目为10~6/ml以上时,必然发生切口
In the past 40 years, due to the development of intestinal antibacterial method, postoperative mortality and the rate of intra-abdominal infection have been significantly reduced, incision infection rate dropped to 3%. Now is as follows. Intestinal mechanical preparation to be cut open the wall when surgery, bacterial contamination can not be absolutely avoided. But good bowel preparation can reduce bacterial contamination to a minimum. Irvin noted that when the bowel is not well prepared, the anastomosis can open up to 24% and the prepared intestine only 6%. Incision infection not only with the type of bacteria, virulence, but also depends on the bacteria a few days when the number of bacteria in the planting of 10 ~ 6 / ml or more, the inevitable incision