定量分析白内障手术过程中的气溶胶生成。

Quantification of aerosol generation during cataract surgery.

机构信息

From the Department of Ophthalmology and Visual Sciences, The University of British Columbia, Vancouver, British Columbia, Canada.

出版信息

J Cataract Refract Surg. 2021 Aug 1;47(8):1071-1074. doi: 10.1097/j.jcrs.0000000000000530.

DOI:10.1097/j.jcrs.0000000000000530

PMID:33229968

Abstract

PURPOSE

To determine whether phacoemulsification cataract surgery is an aerosol-generating medical procedure (AGMP) and, therefore, to help determine the personal protective equipment required by healthcare providers in the era of the COVID-19.

SETTING

The Surgery, Teaching and Research Wet Lab of the Department of Ophthalmology and Visual Sciences, Faculty of Medicine, UBC.

DESIGN

Laboratory-based simulation.

METHODS

Phacoemulsification cataract surgery was performed on porcine eyes. At a fixed distance, a DRX Aerosol Monitor 8534 (DustTrak) was used to measure particulate matter (PM) mass fractions for each of 3 particle sizes, PM1, PM2.5, and PM4 (in microns), every 2 seconds during surgery and for 1 minute after. The main outcome measure was an increase in the mass fraction of aerosolized particles of various sizes.

RESULTS

There was no significant aerosolization of particles during cataract surgery for both the 2.4 and 2.75 mm wound sizes.

CONCLUSIONS

Phacoemulsification cataract surgery was not found to be an AGMP. In the midst of the COVID-19 pandemic, ophthalmologists can continue to use droplet precautions while performing this surgery.

摘要

目的

确定白内障超声乳化手术是否为气载生成医疗操作（AGMP），从而有助于确定在 COVID-19 时代医护人员所需的个人防护设备。

地点

不列颠哥伦比亚大学医学系眼科与视觉科学手术、教学与研究湿实验室。

设计

基于实验室的模拟。

方法

在猪眼上进行白内障超声乳化手术。在固定距离处，使用 DRX Aerosol Monitor 8534（DustTrak）在手术过程中每 2 秒和手术后 1 分钟内，对 3 种粒径（PM1、PM2.5 和 PM4，单位为微米）的每个粒径测量颗粒物质（PM）质量分数。主要观察指标是各种大小气溶胶化颗粒的质量分数增加。