我院远程伦理审查会议的实践与体会

本文分析某医院伦理委员会首次以远程会议的形式进行伦理审查的实践过程与体会。从会议的组织与实施展开,描述其与会议审查的不同之处,从会后的调查问卷结果分析本次远程伦理审查会议顺利实施的各方面因素,探讨远程伦理审查会议的意义及存在的问题。本次伦理审查会议采用视频会议模式进行,是特殊时期的一种尝试,会议实施过程确保遵从现有的法律法规,符合医院伦理委员会现行的规章制度和流程,满足医院伦理审查会议的要求。     

In situ antimicrobial behavior of materials with copper-based additives in a hospital environment

Copper and its alloys are effective antimicrobial surface materials in the laboratory and in clinical trials. Copper has been used in the healthcare setting to reduce environmental contamination, and thus prevent healthcare-associated infections, complementing traditional protocols. The addition of copper nanoparticles to polymer/plastic matrices can also produce antimicrobial materials, as confirmed under laboratory conditions. However, there is a lack of studies validating the antimicrobial effects of these nanocomposite materials in clinical trials. To satisfy this issue, plastic waiting room chairs with embedded metal copper nanoparticles, and metal hospital IV pools coated with an organic paint with nanostructured zeolite/copper particles were produced and tested in a hospital environment. These prototypes were sampled once weekly for 10 weeks and the viable microorganisms were analysed and compared with the copper–free materials. In the waiting rooms, chairs with copper reduced by around 73% the total viable microorganisms present, showing activity regardless of the microorganism tested.Although there were only low levels of microorganisms in the IV pools installed in operating rooms because of rigorous hygiene protocols, samples with copper presented lower total viable microorganisms than unfilled materials. Some results did not have statistical significance because of the low load of microorganisms; however, during at least three weeks the IV pools with copper had reduced levels of microorganisms by a statistically significant 50%. These findings show for the first time the feasibility of utilizing the antimicrobial property of copper by adding nanosized fillers to other materials in a hospital environment.