摘要胆囊是人体的重要消化器官,在其功能良好的情况下不可轻易切除,利用内镜微创保胆取石,是当今一项流行的医疗技术,即可以保住有功能的胆囊,又可减少胆囊切除术后带来的多种并发症的发生,目前常见的保胆术式有3种[1]。体重指数（Body Mass Index,BMI）是判断人体营养状况的生理指标,是目前国际上用来衡量人体胖瘦程度的通用标准[2].
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