Jain Sameer, Reed Mike
1 Northumbria Healthcare NHS Foundation Trust, Wansbeck Hospital, Northumberland, United Kingdom.
2 Department of Health Sciences, University of York, Seebohm, Heslington, York, United Kingdom.
Surg Infect (Larchmt). 2019 Feb/Mar;20(2):151-158. doi: 10.1089/sur.2018.258. Epub 2018 Dec 31.
Surgical site infection is associated with a substantial healthcare burden and remains one of the most challenging complications to treat. Airborne particles carrying contaminating micro-organisms are responsible for the majority of these infections.
Various operating theater ventilatory systems have been developed to prevent direct airborne bacterial inoculation of the surgical wound. Laminar air flow uses positive pressure air currents through filtration units to direct air streams away from the operative field in order to create an ultraclean zone around the operative site.
Early studies reported lower infection rates with laminar air flow and therefore it became the accepted standard for implant-related surgery. However, more recent evidence has questioned its clinical importance. The purpose of this article is to review contemporary laminar air flow handling systems and the current evidence behind their use.
手术部位感染会带来沉重的医疗负担，并且仍然是最难治疗的并发症之一。携带污染微生物的空气传播颗粒是这些感染的主要原因。
已经开发出各种手术室通风系统，以防止手术伤口受到空气传播细菌的直接接种。层流空气通过过滤装置利用正压气流将气流引离手术区域，以便在手术部位周围创建一个超净区。
早期研究报告称层流空气可降低感染率，因此它成为植入相关手术的公认标准。然而，最近的证据对其临床重要性提出了质疑。本文的目的是回顾当代层流空气处理系统及其使用背后的现有证据。
