Der Tavitian J, Ong S M, Taub N A, Taylor G J S
Glenfield Hospital, Leicester, England, UK.
J Bone Joint Surg Br. 2003 May;85(4):490-4. doi: 10.1302/0301-620x.85b4.13363.
We randomly allocated 50 total knee replacements to scrub teams wearing body-exhaust suits (BES) or Rotecno occlusive clothing. The effectiveness of the clothing was assessed using air andwound bacterial counts. Bacteria were recovered from 62% of wounds (64% BES, 60% Rotecno). The mean air count was 0.5 CFU/ m3 with BES and 1.0 CFU/m3 with Rotecno (p = 0.014). The mean wound counts were 14 bacteria/wound with BES and eight bacteria/wound with Rotecno (p = 0.171). There was no correlation between the air and wound counts (r = -0.011, Spearman's). The higher air counts suggest that Rotecno occlusive clothing is less effective than BES, but wounds were equally contaminated with both types of clothing suggesting that at very low levels of air contamination the contribution of bacteria to the wound from the air is irrelevant. Even doubling the air counts from 0.5 to 1.0 CFU/m3 had no detectable effect on the wound. This allows a reassessment to be made of other sources of contamination the effect of which would previously have been overwhelmed by contamination from air.
我们将50例全膝关节置换手术随机分配给穿着体排气服（BES）或Rotecno封闭服装的手术刷手团队。通过空气和伤口细菌计数评估服装的有效性。62%的伤口中检测到细菌（BES组为64%，Rotecno组为60%）。使用BES时空气平均菌落数为0.5 CFU/m³，使用Rotecno时为1.0 CFU/m³（p = 0.014）。BES组伤口平均细菌数为14个/伤口，Rotecno组为8个/伤口（p = 0.171）。空气和伤口细菌计数之间无相关性（r = -0.011，Spearman相关性）。较高的空气细菌计数表明Rotecno封闭服装的效果不如BES，但两种类型服装造成的伤口污染程度相同，这表明在极低的空气污染水平下，空气中的细菌对伤口的影响微不足道。即使将空气细菌计数从0.5 CFU/m³增加一倍至1.0 CFU/m³，对伤口也没有可检测到的影响。这使得可以重新评估其他污染来源，而这些来源的影响此前可能被空气污染所掩盖。
