背景:适当的手部卫生被认为是医疗保健相关感染预防中最有效的策略之一。戒指在手消毒中的潜在负面影响,医院感染率的增加仍然存在争议。因此,本研究的目的是检查经常暴露于手术擦洗的环是否与细菌数量增加有关。
方法:32名志愿者随机分为4组:A(无环),B(参与者戴着戒指),C(无环,每48小时用氯己定进行手术擦洗)和D(参与者戴上环,每48小时进行手术擦洗)。在第0天(T0)和第14天(T1)90分钟模拟手术后获得手套汁样品。收集定量(UFC数/mL)和定性数据(微生物类型)作为研究变量。
结果:所有组在T0时具有可比性。所有环状载体在T1时获得阴性培养物。环的存在与较高的细菌计数无关;A组与B组和C组与D组之间的比较没有统计学上的显着差异(p=0.076和1.000)。T1阴性培养在每两天进行手术擦洗的参与者中更频繁(93.8%vs75%),尽管这种差异没有达到统计学意义(p=0.332)。
结论:单个平环的存在似乎与手部细菌负荷增加无关。定期用氯己定浸渍海绵进行手术擦洗可减少手部的细菌污染,即使在普通戒指的存在。
BACKGROUND: Adequate hand hygiene is considered as one of the most effective strategies in healthcare-related infection prevention. The potential negative effect of rings in hand disinfection and thus, in increased nosocomial infections rates is still controversial. Therefore, the present study was designed with the purpose of examining if rings frequently exposed to surgical scrubbing were associated or not with increased bacterial counts.
METHODS: 32 volunteers were randomized into 4 groups: A (no rings), B (participants wore a
ring), C (no rings and performed surgical scrubbing with chlorhexidine every 48 h) and D (participants wore a
ring and performed surgical scrubbing every 48 h). Glove juice samples were obtained at day 0 (T0) and after a 90-min mock-surgery on day 14 (T1). Quantitative (number of UFC/mL) and qualitative data (microorganism type) were collected as study variables.
RESULTS: All groups were comparable at T0. All
ring carriers obtained negative cultures at T1.
Ring presence was not associated with higher bacterial counts; comparisons between A vs B groups and C vs D groups showed no statistically significant differences (p = 0.076 and 1.000). T1 negative cultures were more frequent in participants performing surgical scrubbing every second day (93.8 % vs 75 %), although this difference did not reach statistical significance (p = 0.332).
CONCLUSIONS: The presence of single plain
ring does not seem to be associated with an increased hand bacterial load. Regular surgical scrubbing with chlorhexidine impregnated sponges reduces bacterial contamination of hands, even in the presence of plain rings.