在冠状病毒大流行期间，通过在手术室使用防护帘降低病毒污染风险。

Reducing the risk of viral contamination during the coronavirus pandemic by using a protective curtain in the operating room.

作者信息

Sadeghian Parastoo, Bi Yang, Cao Guangyu, Sadrizadeh Sasan

机构信息

Department of Civil and Architectural Engineering, KTH Royal Institute of Technology, Brinellvägen 23, 10044, Stockholm, Sweden.

Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway.

出版信息

Patient Saf Surg. 2022 Aug 6;16(1):26. doi: 10.1186/s13037-022-00332-x.

DOI:10.1186/s13037-022-00332-x

PMID:35933393

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9356414/

Abstract

BACKGROUND

Airborne transmission diseases can transfer long and short distances via sneezing, coughing, and breathing. These airborne repertory particles can convert to aerosol particles and travel with airflow. During the Coronavirus disease 2019 (COVID-19) pandemic, many surgeries have been delayed, increasing the demand for establishing a clean environment for both patient and surgical team in the operating room.

METHODS

This study aims to investigate the hypothesis of implementing a protective curtain to reduce the transmission of infectious contamination in the surgical microenvironment of an operating room. In this regard, the spread of an airborne transmission disease from the patient was evaluated, consequently, the exposure level of the surgical team. In the first part of this study, a mock surgical experiment was established in the operating room of an academic medical center in Norway. In the second part, the computational fluid dynamic technique was performed to investigate the spread of airborne infectious diseases. Furthermore, the field measurement was used to validate the numerical model and guarantee the accuracy of the applied numerical models.

RESULTS

The results showed that the airborne infectious agents reached the breathing zone of the surgeons. However, using a protective curtain to separate the microenvironment between the head and lower body of the patient resulted in a 75% reduction in the spread of the virus to the breathing zone of the surgeons. The experimental results showed a surface temperature of 40 ˚C, which was about a 20 ˚C increase in temperature, at the wound area using a high intensity of the LED surgical lamps. Consequently, this temperature increase can raise the patient's thermal injury risk.

CONCLUSION

The novel method of using a protective curtain can increase the safety of the surgical team during the surgery with a COVID-19 patient in the operating room.

摘要

背景

空气传播疾病可通过打喷嚏、咳嗽和呼吸在长距离和短距离内传播。这些空气传播的呼吸道颗粒可转化为气溶胶颗粒并随气流传播。在2019冠状病毒病（COVID-19）大流行期间，许多手术被推迟，这增加了在手术室为患者和手术团队建立清洁环境的需求。

方法

本研究旨在调查在手术室手术微环境中使用防护帘以减少传染性污染传播这一假设。就此，评估了空气传播疾病从患者处的传播情况，进而评估了手术团队的暴露水平。在本研究的第一部分，在挪威一家学术医疗中心的手术室进行了模拟手术实验。在第二部分，运用计算流体动力学技术研究空气传播传染病的传播情况。此外，通过现场测量来验证数值模型并确保所应用数值模型的准确性。