string(5) "index" string(5) "index" string(7) "jieshao" string(17) "huodong_guoqing_ " string(8) "zhuanjia" string(13) "huodong_luqi1" string(13) "huodong_luqi1" string(10) "22893.html" string(10) "22407.html" string(10) "23405.html" string(10) "23404.html" string(10) "22542.html" string(4) "tese" string(12) "huodong_gtlf" string(13) "huodong_x-pph" string(14) "huodong_x-hcpt" string(15) "huodong_x-starr" string(14) "huodong_hf_tst" string(13) "huodong_x-zdm" string(12) "huodong_gtlf" string(14) "huodong_x-gczk" string(4) "case" string(11) "huodong_bx1" string(14) "huodong_zc_how" string(12) "huodong_gtgl" string(12) "huodong_glie" string(13) "huodong_gznz2" string(13) "huodong_gmbb2" string(14) "huodong_bianmi" string(15) "huodong_x-zcycj" string(14) "huodong_nvgc_ " string(9) "road.html" string(47) "LR_Chatpre.aspx3333id=LWT634743226666amp;cid=14" string(22) "javascript1111void(0);" string(22) "javascript1111void(0);" string(22) "javascript1111void(0);" string(21) 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什么是直肠内异物
一般认为,咽下的异物包括导管、鸡骨和鱼刺、胆石或者粪石可停留在肛门直肠交界处;尿路结石、阴道环或手术的海绵或器械可能侵蚀入直肠;某些奇特的或与表演性有关的异物被人为地插入,并无意识地嵌顿了;有些物质嵌入直肠壁、有些异物嵌粘在肛门括约肌上面等这些异物进入并相应一些症状称为直肠内异物。
直肠内异物的症状
排便过程中突然出现剧裂疼痛应怀疑有穿透性异物,其刚好停留在肛门直肠交界处或之上。其他症状取决于异物的大小和形态,在原位的停留时间及有无感染或穿孔。
异物通常停在直肠中段,异物在该处不能通过直肠前屈的角度。肛指检查时可触摸到异物。可能有必要作腹部和胸部X线检查以排除腹腔直肠内穿孔。
直肠内异物的治疗
如异物被触及可于皮下和粘膜下,注射利多卡因或含150u/15ml透明质酸酶的丁哌卡因进行局部麻醉,然后用直肠牵开器扩张肛门,抓住异物 使之转向并取出。如不能触及异物,患者通常需要住院,肠蠕动常可将异物推至直肠中段,则随后进行上述的常规操作。但乙状结肠镜或直肠镜去除异物是极少能成功的 而且乙状结肠镜检查导致将异物推至近侧位置,从而延迟异物的取出。少数情况下需要作局麻或全麻,偶尔需作剖腹检查术将异物挤向肛门或作结肠切开术取出异物。异物取出后应进行乙状结肠镜检查以排除明显的直肠创伤或穿孔。
预防:避免误食;积极治疗体内脏器结石。
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