Abstract: 【Objective】 To investigate the characteristics of anorectal motility spectrum and the risk factors of functional constipation (FC) children,and in order to provide a scientific basis of etiology and precaution for children. 【Method】 Compare the characteristics of anorectal motility spectrum of FC children and healthy children,and the clinical data of these children diagnosed FC were analysed. 【Results】 No statistical differences were found in the anorectal stationary pressure of between two groups.But maximal systolic pressure and maximal tolerated volume between the two groups were significantly different.Factors including the poor balanced diet,excessive intake of fried food,excessive intake of meat,obesity,genetic genes,did not eat or occasionally some vegetables were significantly associated with the presence of chronic constipation. 【Conclusions】 Abnormal features exit in the anorectal motility spectrum of the children with functional eonstipation.Take some target actions and make early treatment could protect children from FC.

Key words: constipation, risk factors, kinetics, children

摘要： 【目的】 研究功能性便秘儿童的肛门直肠动力学特点,并分析儿童便秘的病因及危险因素,为预防便秘提供科学依据。 【方法】 采用消化道测压仪测量功能性便秘儿童(便秘组)(60例,年龄4~14岁)及排便习惯正常儿童(对照组)(50例,年龄4~13岁)的肛门直肠动力学指标,并进行比较;对便秘组儿童进行问卷调查,对便秘病因及危险因素进行分析。 【结果】 便秘组和对照组的直肠及肛门括约肌静息压比较无统计学意义,而便秘组的肛管最大缩榨压、最大耐受容量阈值、模拟排便时肛管括约肌压力均大于对照组(t=2.357、1.475、2.318,P均<0.05);问卷调查结果显示挑食偏食、饮食摄入不足、饮食结构不当、活动量小、饮水少、精神心理因素、生活习惯不规律、遗传因素、肥胖、肠道菌群失调等10种因素为最具可能性的危害因素,其OR值均>1。 【结论】 功能性便秘儿童存在肛门直肠动力学异常,从儿童功能性便秘的危险因素入手,制定相应的预防措施,达到预防和治疗的目的。

关键词: 便秘, 危险因素, 动力学, 儿童