喉头喷雾器污染调查与消毒方法的研究

目的调查喉头喷雾器在不同科室的患者中使用后的污染状况,探讨理想的消毒方法以降低医院感染发生率。方法按《消毒技术规范》规定方法进行采样及消毒,比较5种方法的消毒效果。结果使用后的喷雾器存在严重的污染,有大量的细菌,除了有口咽部和鼻腔分布的正常菌群外,还有较多的致病菌;喉头喷雾器在胃镜室患者使用后较耳鼻喉科的患者使用后污染程度轻;5种方法消毒效果均较明显,酒精灯烧烤法、碘伏法、乙醇擦拭法与碘酒加乙醇法4种消毒方法之间（P〉0.05）,但均优于氧化电位水冲洗法差异有统计学意义（P〈0.05）。结论重视喉头喷雾器污染状况,并选用合适方法进行消毒,防止侵入性操作引起医源性医院感染的发生。

Bacterial Contamination for Throat Spray and Study of Disinfection Methods

OBJECTIVE To investigate bacterial contamination of throat spray in different patient groups before and after using it and explore the satisfactory disinfection methods for decreasing the rate of hospital acquired infection. METHODS The methods were used in accordance with Disinfection Technology Criteria. We compared the germicidal effect of five kinds of methods. RESULTS Bacterial contamination was very serious after using throat spray, many bacteria, even pathogens, as well as the normal flora from the region of nasopharynx had been found there. Bacterial contamination was more serious in ENT department patient than in endoscopy patient after using throat sprays. Burning, alcohol, iodophor and disinfectants containing iodine with alcohol were better than oxidized potential water method on disinfection effect. CONCLUSIONS Much attention should be paid to the contamination of throat spray, selecting the most effective disinfection methods, hospital infections caused by invasive manipulation could be prevented when correct methods are adopted.