超声波改良法与传统清洗法清洗消化内镜按钮效果的对比研究

Effects of two methods on cleaning and disinfecting endoscopy buttons： a randomized controlled trial

目的比较超声波改良法和传统清洗法对内镜按钮（吸引按钮、注气注水按钮）的清洗效果，为寻求更为有效的内镜按钮清洗手段提供临床依据。方法采用随机对照的方法，将200个消化内镜按钮随机采用2种方法清洗，传统清洗方法组和超声波改良组各100个。传统清洗方法组采用单纯多酶清洗液清洗法，超声波改良组采用多酶清洗液联合超声振荡清洗法，应用ATP生物荧光检测技术测定并判断有机物残留情况，以观察比较2种清洗方法对内镜按钮清洗的合格情况。结果传统清洗方法有机物残留测定值为（217．0±29．8）RLU（相对发光值），超声波改良组有机物残留测定值为（42．74±8．6）RLU（P〈0．01），传统清洗方法组合格率为26％（26／100），超声波改良组合格率为87％（87／100），2组差异有统计学意义（P〈0．01）。结论改良后的多酶清洗液联合超声振荡内镜按钮清洗法，对于提高内镜吸引、注气注水按钮消毒前的彻底清洁意义重大，为消化内镜按钮清洗提供了新方法。

Objective To investigate the cleaning effects of two different methods （modified ultra- sound method VS traditional cleaning method） on endoscopy buttons, including suction button and water/gas injection button, and to provide effective clinical evidence for seeking better methods in cleaning endoscopy buttons. Methods A total of 200 endoscopy buttons were randomly divided into two groups： modified ultra- sound cleaning group （ experimental group） and traditional cleaning group （ control group）. The combination of multienzyme abluent and ultrasound vibration was applied to the experimental group and muhienzyme ablu- ent was used in the control group. ATP bioluminescence detection technology was applied to detect the resid- ual status of organic substance and this parameter was used to evaluate the disinfection status of two different cleaning methods. Results The average organic substance residual was （217.0 ± 29.8 ）RLU and （42.74 ± 8.6） RLU in control group and experimental group, respectively （ P 〈 0.01 ）. The pass rates were 26% （26/100） and 87% （87/100） in in control group and experimental group respectively （P 〈0.01 ）. Conclusion Modified ultrasound cleaning method combined with multienzyme abluent and ultrasound vibra- tion has great cleaning effects on endoscopy buttons before disinfection. It can be regarded as a new method for cleaning endoscopy buttons.