摘要
AIM： To compare the efficacy of enzymatic detergent with chlorhexidine for gastroscope bacterial decontamination. METHODS： A prospective randomized controlled study was undertaken to evaluate the ability of these 2 agents to achieve high level disinfection in a gastroscope. A total of 260 samples were collected from 5 different gastroscopes. Manual cleaning was done for 10 min with these 2 agents separately （n = 130 each）. Then all specimens underwent 2% glutaraldehyde soaking for 20 min. After 70% alcohol was rinsed, sterile normal saline was flushed into each gastroscope channel and 40 mL of sample was collected. The sample was sent for aerobic bacterial culture after membrane was filtered. A colony count greater than 200 cfu/mL was considered significant. RESULTS： The positive culture rate was 4.6% in the enzymatic detergent arm and 3.1% in the chlorhexidine arm. Pseudomonas species were the main organism detected from both groups （60%）. Multiple organisms were found from 4 specimens （enzymatic detergent arm = 1, chlorhexidine arm = 3）. CONCLUSION： The contamination rate of both types of cleaning solution is equivalent.
瞄准：比较功效酶与为胃的范围的 chlorhexidine 净化细菌的净化。方法：未来的使随机化的控制研究被承担评估这 2 个代理人的能力在一个胃的范围完成高级消毒。260 件样品的一个总数从 5 个不同胃的范围被收集。用手的清洗独立与这 2 个代理人为 10 min 被做(n = 130 各个) 。然后，所有标本经历了为 20 min 浸泡的 2% glutaraldehyde。在 70% 酒精被清洗以后，无菌的生理盐水被冲洗进每条胃的范围隧道，样品的 40 mL 是镇定的。样品被去请在膜以后的氧气的细菌的文化被过滤。比 200 cfu/mL 大的一个殖民地计数被认为重要。结果：积极文化率在酶的净化的手臂是 4.6% ， 3.1% 在 chlorhexidine 武装。假单胞菌属种类是从两个组(60%) 检测的主要有机体。多重有机体从 4 个标本被发现(酶的净化的手臂 = 1， chlorhexidine 手臂 = 3 ) 。结论：清洗答案的两种类型的污染率是相等的。
