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目的 探寻肛管压力的对称性变化趋势的存在与否 ,探讨它对括约肌功能状态的定量评价。方法 采用瑞典CTD SYNECTICS公司提供的高分辨多通道胃肠功能测定仪对 2 7例正常儿童及 12例肛门失禁患儿进行括约肌压力及其偏位的测定 ,观察压力及其偏位的变化趋势。结果 静息及收缩状态下 ,正常儿童肛管直肠之间不仅存在明显升高的压力梯度变化 ,而且存在明显降低的压力偏位梯度变化 ,并且在距离肛门缘 1cm处形成压力及其偏位变化的特征位点。失禁患儿不存在上述四个梯度变化 ,也不存在特征位点。结论 括约肌压力梯度及压力偏位梯度可以用来定量地描述括约肌的功能状态。
Objective To explore the existence or absence of the change trend of the symmetry of anal canal pressure and to explore its quantitative evaluation of sphincter function. Methods Sphincter pressure and its deviation were measured in 27 children with normal incontinence and 12 children with anal incontinence by the high resolution multi - channel gastrointestinal function detector provided by Sweden CTD SYNECTICS company. The changes of pressure and its deviation were observed. Results In resting and contracted state, there was not only a markedly increased pressure gradient between normal and rectum but also a markedly decreased gradient of pressure deviation and a pressure of 1cm at the anus and its deviation Of the characteristic sites. Incontrast in children do not exist in the above four gradient changes, there are no characteristic sites. Conclusion Sphincter pressure gradient and pressure gradient can be used to describe the functional status of sphincter.