功能性便秘儿童的肛门直肠动力学特征和治疗的研究

目的研究功能性便秘患儿的直肠肛门动力学改变,观察便秘患儿对根据检测结果制定的相应方案的治疗反应。方法2004年5月至2005年6月采用多功能消化道测压仪观察便秘组即功能性便秘患儿[8例,年龄(11±5)岁]及对照组即排便习惯正常儿童[10例,年龄(11±4)岁]的肛门直肠动力学指标,并进行比较;对便秘组采用相应保守治疗方案,即结合肛门直肠动力学特征、口服双歧三联活菌制剂和益生元类制剂乳果糖(商品名杜秘克)、定时敦促排便,观察其疗效。结果便秘组和对照组的肛门括约肌有效长度、最大肛门括约肌主动收缩压(MSP)、>50%MSP时间比较差异无统计学意义,而便秘组的最低敏感量和最大耐受量大于对照组(t分别为2.178、1.574,P均<0.05);8例便秘患儿保守治疗,7例有效。结论功能性便秘患儿存在肛门直肠动力学异常;以动力学改变为依据的相应保守治疗方案有显著的临床疗效。

Characteristics of anorectal motility spectrum and preliminary approach to treatment of functional constipation in children

OBJECTIVE: To investigate the characteristics of anorectal motility spectrum in children with functional constipation in comparison with healthy children and determine the efficacy of treatment measures based on the results of anorectal manometry. METHODS: Anorectal manometric indexes were detected by the multi-functional manometry in eight patients with functional constipation aged (11.4 +/- 4.8) yrs and ten healthy children aged (10.5 +/- 3.5) yrs from May 2004 to June 2005. The patients received combined treatment including probiotics (Bifid. triple viable), prebiotics (Lactulose) and regular defecation according to the results of anorectal manometry in patients with functional constipation. The efficacy of these conservative measures were estimated during the course of treatment. RESULTS: No statistical differences were found in the indexes of effective length of anal sphincter, maximal systolic pressure and the duration of more than 50% of maximal systolic pressure between two groups. But minimal sensitivity and maximal tolerated volume between the two groups were significantly different. Seven of eight patients got better with the conservative treatment. CONCLUSION: Abnormal features exit in the anorectal motility spectrum of the children with functional constipation. The clinical efficacy of the conservative treatment measures based on the results of anorectal manometry is significantly good.