Airborne particle emission rates and doses received in operating rooms from surgical smoke
Airborne particle emission rates and doses received in operating rooms from surgical smoke
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DOI：
10.1016/j.buildenv.2019.01.044
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发表时间：
2019-03
影响因子：
7.4
通讯作者：
G. Buonanno;R. Capuano;G. Cortellessa;L. Stabile
中科院分区：
文献类型：
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作者：
G. Buonanno;R. Capuano;G. Cortellessa;L. Stabile
手术烟雾通常由电外科手术产生，即由手术室中用于通过使用高频电流切割组织和切除小血管的产热装置产生。由于暴露于手术烟雾对健康的影响是最近认识到的，因此科学界目前正在更加关注这一研究领域。特别是，开展了重点提高过滤系统和机械通风系统效率的研究，尽管如此，关于手术室中的颗粒浓度水平和手术过程的排放率的知识仍然存在差距。在本文中，进行了实验分析（i）以估计不同气溶胶度量的几种类型的手术的每单位时间的粒子排放，以及（ii）测量工人和患者接收的亚微米和超微米粒子的剂量。为此目的，在三家不同的意大利医院的七间手术室进行了采样，在所研究的手术程序中，颗粒数和质量浓度的中位数排放率在1.59-3.21 × 1011之间变化。min− 1和0.09-0.32 mg min− 1范围，导致相应的中值颗粒浓度水平为0.7-1.2 × 104份。cm-3和5-13 μg m-3。最后，在手术过程中，手术室工作人员接受的中值粒子表面积剂量从5到12 mm 2不等。
The surgical smoke is commonly generated by electrosurgery, i.e. by the heat-producing device used in operating rooms for cutting tissues and coagulating small blood vessels through the use of high-frequency electrical current. Health effects due to the exposure to surgical smoke were recently recognized, thus the scientific community is currently paying more attention to such research field. In particular, studies focusing on the improvement of the effectiveness of filtration systems and mechanical ventilation systems were carried out, nonetheless, a gap of knowledge on the particle concentration levels in the operating rooms and on the emission rate of the surgical procedures still exists.In the present paper an experimental analysis was performed (i) to estimate the particle emission per unit time for several types of surgery for different aerosol metrics and (ii) to measure the dose of both sub-micron and super-micron particles received by workers and patients. To this purpose, samplings were performed in seven operating rooms located in three different Italian hospitals.The median emission rates in terms of particle number and mass concentrations amongst the surgery procedures investigated varied in the 1.59–3.21 × 1011part. min−1and 0.09–0.32 mg min−1ranges, respectively, leading to corresponding median particle concentration levels of 0.7–1.2 × 104part. cm−3and 5–13 μg m−3.Finally, the median particle surface area dose received by personnel working in the operating rooms during the surgery procedures varied from 5 to 12 mm2.