普通与分级巡回控制术中空气菌落数的效果比较

Comparison of Colony Number in Ordinary Tour and Circuit Tour

目的研究分级与普通巡回模式下手术室空气中菌落数的变化。方法入选甲状腺和胃肠手术共80例,随机分为分级和普通巡回模式2组,每组各40例;从清晨静态到手术结束分10个时间点进行空气细菌培养。结果在普通巡回模式下,两种手术随时间延长手术室内空气中菌落数均呈直线上升,两种手术之间差异无统计学意义;分级巡回模式下,空气中菌落数随时间延长开始上升,随后平稳甚至下降,两种手术之间差别无统计学意义;在两种巡回模式之间,甲状腺手术从手术30 min开始出现,差异有统计学意义(P<0.01),胃肠手术从手术开始出现,差异有统计学意义(P<0.01)。结论分级巡回模式较普通巡回模式能有效降低手术室中菌落数。

OBJECTIVE To study the changes in air bacteria content under gradual circuit model and ordinary circuit model in operating room.METHODS Altogether 80 cases with thyroid gland surgery and gastrointestinal surgery were selected,and divided them randomly into two groups： the gradual circuit model and the ordinary circuit model,each group had 40 cases.The period of early morning to the end of operation was divided into 10 time spots to carry on the air bacilliculture.RESULTS Under the ordinary circuit model,air colony showed straight up with time during the two types of surgical operations,and there was no significant difference between the two types of surgery.Under the gradual circuit model,air colony began to increase with time,followed by steady,or even decline,no differences between the two types of surgery. Roving between two models,significant statistical difference emerged in thyroid surgery from the 30-minutes of operation（P〈0.001）,but in gastrointestinal surgery statistical difference emerged from the start of operation（P〈0.001）.CONCLUSIONS The gradual circuit model can reduce more effectively the air colony number in operating room than the ordinary one.