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Abstract Objective： To summarize the reasons of Laparoscopic Appendectomy（ LA） coversion to laparotomy and reduce the conversion rate. Method： A retrospective analysis was made on clinical date of 22 cases conversion to laparotomy out in 485 patients who underwent LA from March 2012 to March 2014. Result： The coversion rate was 4.53%. And the reasons of conversion to laparotomy included serious conglutination around the appendix（ 8/22），gangrene at root of appendix（ 6/22）， intraoperative hemarrhea（ 2/22）， appendiceal tumor（ 3/22）， extensive dense adhesion（ 2/22），retrocecal appendicitis（ 1/22）. Conclusion： The main reasons of conversion are gangrene at root of appendix and serious conglutination around the appendix. Mastering the basic skills of laparoscopic operation and open appendectomy can reduce the conversion rate.
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