Hodge B, Thompson J F
Royal Prince Alfred Hospital, Sydney, Australia.
Lancet. 1990 Apr 14;335(8694):891-4. doi: 10.1016/0140-6736(90)90486-o.
Sound levels during a typical major operation were measured to identify the main sources of noise in the operating theatre. Although overall sound levels were within the recommended levels for a satisfactory working environment, loud intermittent noises of up to 108 dB were emitted from sources such as suckers, "intercoms", and alarms on anaesthetic monitoring devices. The noisiest time was usually during the preparation period of the operation; during surgery, noise levels were much higher than levels of normal speech between staff. Preferred speech interference levels were often exceeded which made communication difficult and sometimes impossible. Communication and concentration were also disrupted by unnecessary background conversation.
测量了典型大手术期间的声级，以确定手术室中的主要噪声源。尽管总体声级在令人满意的工作环境推荐水平之内，但诸如吸引器、“对讲机”和麻醉监测设备上的警报器等声源会发出高达108分贝的间歇性高声噪音。最嘈杂的时段通常是手术准备期；手术期间，噪音水平远高于工作人员之间正常交谈的水平。经常超过了理想的言语干扰水平，这使得交流变得困难，有时甚至无法进行。不必要的背景交谈也干扰了交流和注意力的集中。
