二甲硅油散在胶囊内镜检查术前准备中的作用研究

目的观察二甲硅油散在胶囊内镜检查前对肠腔清洁度的影响及不良反应。方法60例例接受胶囊内镜检查患者随机分为二甲硅油散组（常规服用聚乙二醇电解质散剂的基础上，检查前30min口服二甲硅油散）和对照组（仅服用聚乙二醇电解质散剂），将每例胶囊所获得的小肠图像资料按照小肠通过时间平均分成A、B、C三段，由2位读片者分别根据肠腔内的气泡进行分级。并观察有无不良反应。结果2位读片者间一致性较佳（P〈0．05）。在小肠的A段及C段中，二甲硅油散组较对照组有明显祛泡作用，大大提高的肠黏膜观察清晰度，差异有统计学意义（P〈0．05）。而在B段中，二甲硅油散组与对照组相比差异无统计学意义（P〉0．05）。结论胶囊内镜检查前服用二甲硅油散能提高小肠肠黏膜观察清晰度，无不良反应发生。

Dimethicone powder in bowel preparation before capsule endoscopy

Objective To evaluate the effect of the dimethicone powder in bowel preparation before capsule endoscopy (CE) and to observe its possible adverse effects. Methods A total of 60 patients receiv-ing CE were prospectively randomized into 2 groups according to bowel preparation method. In dimethicone powder group, patients were arranged to take dimethicone powder 30 rain before the examination on basis of macrogol electrolytes powder and in control group, patients had macrogol electrolytes powder only. Images of small intestine were equally divided into segments A, B and C according to intestinal transit time, and re-viewed by 2 experienced physicians independently. Intraluminal gas bubbles were graded and any possible adverse effects were monitored. Results Interobserver agreement was excellent (P < 0.05). In segments A and C, images from dimethicone powder group were less interfered by gas bubble than those from control group (P < 0. 05), but in segment B there was no difference between 2 groups (P > O. 05). No adverse effects were observed. Conclusion The dimethicone powder administration before capsule endoscopy im-proves the visualization of the intestinal mucosa.