Belkin N L
Infect Control Hosp Epidemiol. 1997 Jan;18(1):49-57. doi: 10.2307/30141964.
When originally introduced for use at the turn of the century, the primary function of the surgical mask was to prevent the migration of microorganisms residing in the nose and mouth of members of the operating team to the open wound of the patient. As technology developed new materials and designs, their filtering efficiencies gradually improved. However, there is no standard test method for assessing that capability, and its influence on the rates of surgical-wound infection has yet to be demonstrated. Quite to the contrary, both in-vitro and in-vivo studies indicate that a mask may not be universally necessary in today's surgical environment.
在世纪之交首次引入使用时，外科口罩的主要功能是防止手术团队成员口鼻中存在的微生物传播到患者的开放性伤口。随着技术的发展，新材料和新设计不断涌现，其过滤效率逐渐提高。然而，目前尚无评估该能力的标准测试方法，其对手术伤口感染率的影响也尚未得到证实。恰恰相反，体外和体内研究均表明，在当今的手术环境中，口罩可能并非普遍必需。
