School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China.
School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China.
Ecotoxicol Environ Saf. 2024 Mar 15;273:116096. doi: 10.1016/j.ecoenv.2024.116096. Epub 2024 Feb 17.
During surgery, the use of a high-frequency electric knife produces smoke, which can be harmful to the health of indoor medical staff and patients. The quantity and particle size distribution of smoke particles produced by different tissues may vary. Understanding the release characteristics of these smoke particles is necessary to clarify their impact on the surgical environment and to seek effective smoke control methods. A previous comparative analysis of human and pig tissues revealed that they share similar water and fat compositions in certain anatomical regions. In this study, we investigated the emission characteristics of smoke particles from various tissues of pigs (skeletal muscle, liver, kidney, skin, and subcutaneous fat) under different operating powers of an electric knife. We measured the indoor particle number concentration (particle concentration), and estimated the PM mass concentration (PM concentration), particle size distribution, and emission rate of the smoke particles. The study obtained the particle emission rates of different tissues under different electric knife operating powers, results of which showed that (1) during the operation of the electric knife, mainly small particles below 1 μm are produced. Among them, particles of 0.3 μm were the most abundant, with a particle concentration level of up to 10 particles/m, accounting for 85.17-97.64% of the total particle number, and as the particle size increased, the particle concentration and percentage decreased significantly. (2) The water and fat compositions of different tissues influenced the indoor particle concentration and emission rate of the smoke emitted by the electric knife. Among different tissues, subcutaneous fat tissue had the lowest particle concentration and emission rate. (3) The electric knife operating power mainly affected particles below 1 μm, and except for kidney tissue, the indoor concentration and emission rate of these particle sizes were positively correlated with the power. The experimental results can provide data reference for the use of high-frequency electric knives in surgeries involving different human tissues in the operating room.
在手术过程中，高频电刀的使用会产生烟雾，这可能对室内医护人员和患者的健康造成危害。不同组织产生的烟雾颗粒的数量和粒径分布可能有所不同。了解这些烟雾颗粒的释放特性对于阐明它们对手术环境的影响以及寻求有效的烟雾控制方法是必要的。之前对人和猪组织的比较分析表明，它们在某些解剖区域具有相似的水和脂肪组成。在这项研究中，我们研究了不同功率高频电刀作用下猪的各种组织（骨骼肌、肝、肾、皮肤和皮下脂肪）产生的烟雾颗粒的排放特性。我们测量了室内颗粒数浓度（颗粒浓度），并估计了 PM 质量浓度（PM 浓度）、颗粒粒径分布和烟雾颗粒的排放率。该研究获得了不同电刀操作功率下不同组织的颗粒排放率，结果表明：（1）在高频电刀的操作过程中，主要产生小于 1μm 的小颗粒。其中，粒径为 0.3μm 的颗粒最丰富，颗粒浓度水平高达 10 个/立方米，占总颗粒数的 85.17%-97.64%，随着粒径的增大，颗粒浓度和百分比显著降低。（2）不同组织的水和脂肪组成会影响高频电刀作用下的室内颗粒浓度和烟雾颗粒的排放率。在不同组织中，皮下脂肪组织的颗粒浓度和排放率最低。（3）电刀操作功率主要影响小于 1μm 的颗粒，除了肾组织外，这些粒径的室内浓度和排放率与功率呈正相关。实验结果可为高频电刀在手术室中进行不同人体组织手术时的使用提供数据参考。
