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首页> 外文期刊>Surgical Endoscopy >Preliminary study of electrocautery smoke particles produced in vitro and during laparoscopic procedures.
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Preliminary study of electrocautery smoke particles produced in vitro and during laparoscopic procedures.

机译：体外和腹腔镜检查过程中产生的电灼性烟雾颗粒的初步研究。

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BACKGROUND: The objective of this preliminary study was to describe the particles contained in cautery smoke produced during five laparoscopic procedures and verify the collection method during three laboratory experiments on ex vivo animal tissue. METHODS: A cascade impactor collected the smoke according to particle size, and particle weights were calculated on an electronic microbalance. Electron microscopic analysis and energy dispersive X-ray evaluation were used to determine particle morphology and elemental composition. RESULTS: The particles, distributed according to size on the seven rotating trays of the impactor, had diameters ranging from 0.05 to >25 micro m, with most being 0.1-1 micro m. In vitro experiments yielded more particles, especially larger (>5 micro m) ones, than the surgical procedures, because the cauterized specimens could be placed much closer to the cascade impactor in the laboratory environment, eliminating most obstacles to particle recovery. In the laparoscopic surgery patients, larger particles, because of their physical properties, were more likely to remain trapped in the abdomen or to drop off in the collection apparatus. Uniformly, two populations of particles were demonstrated--either large, irregular fragments (2-25 micro m) rich in carbon and oxygen, suggesting structural cellular components, or small homogeneous spheres (0.1-0.5 micro m) composed of sodium, magnesium, calcium, and potassium salts. CONCLUSIONS: This study demonstrates the presence of breathable aerosols and cell-size fragments in the cautery smoke produced during laparoscopic procedures. Their exact chemical composition and potential adverse effects for patients and personnel are not known.
机译：背景：这项初步研究的目的是描述五种腹腔镜手术过程中产生的灼烧烟雾中所含的颗粒，并验证三项针对离体动物组织的实验室实验期间的收集方法。方法：级联撞击器根据颗粒大小收集烟雾，并在电子微量天平上计算颗粒重量。使用电子显微镜分析和能量色散X射线评估来确定颗粒形态和元素组成。结果：根据尺寸分布在撞击器七个旋转托盘上的颗粒的直径范围为0.05到> 25微米，大多数为0.1-1微米。与外科手术相比，体外实验产生的颗粒更多，尤其是较大（> 5微米）的颗粒，因为在实验室环境中可以将烧灼后的标本放置在更靠近级联撞击器的位置，从而消除了大多数阻碍颗粒回收的障碍。在腹腔镜手术患者中，较大的颗粒由于其物理特性而更容易滞留在腹部或掉落在收集装置中。均匀地展示了两个粒子群-富含碳和氧的大的不规则碎片（2-25微米），表明结构细胞成分，或由钠，镁，钙和钾盐。结论：这项研究表明在腹腔镜手术过程中产生的灼烧烟雾中存在可呼吸的气溶胶和细胞大小的碎片。其确切的化学成分以及对患者和人员的潜在不良影响尚不清楚。

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