摘要
目的探讨层流手术室中人员流动次数对空气含菌量的影响。方法对30例手术进行术中空气采样,采样时间从层流30min后、手术患者入室前开始,至手术结束,每隔30min采样计数空气细菌;同时记录各时间段内人员流动次数。分析手术各时间段人员流动次数与空气含菌量的关系。结果层流手术室中各时间段平均人员流动次数及空气含菌量呈正相关(R=0.945,p<0.05);当术中人员流动累计达60人次时,空气含菌量即超过国家规定的普通手术室空气静态标准。结论术中人员流动的次数直接影响层流手术室空气中的细菌含量,层流手术室术中必须严格限制入室人员的人次。
Objective： To figure out the effect of frequency of medical staff＇s movement on bacteria rate in air of the standard operating room. Methods： The air samples from 30 operations were collected and analyzed. The samples collecting began before the patients entered the operating room,which was also 30 minutes later after laminar flow of the operating room. Then the air sample was collected every 30 minutes before the end of the operation. The frequency of medical staff＇s movement was recorded at the same time. The relationship between the frequency of medical staff＇s movement and bacteria rate in air of the standard operating room in each period was analyzed. Results： The relationship between the frequency of medical staff＇s movement and bacteria rate in air of the standard operating room in each period was positive （R=0.945,p〈0.05）. When the frequency of medical staff＇s movement got 60 times,the bacteria rate in air exceeded the national level for the standard operating room. Conclusion： The frequency of medical staff＇s movement affected the bacteria rate in air of the standard operating room. It was suggested that positive interventions should be conducted to set a limit to the medical staff＇s movement.
