key: cord-258071-amkfz940
authors: Brown, Sarah; Patrao, Fiona; Verma, Shilpa; Lean, Alexa; Flack, Sean; Polaner, David
title: Barrier System for Airway Management of COVID-19 Patients
date: 2020-04-22
journal: Anesth Analg
DOI: 10.1213/ane.0000000000004876
sha: 
doc_id: 258071
cord_uid: amkfz940

nan

To the Editor A irway management of patients with Coronavirus Disease 2019 (COVID-19) poses significant risk to involved staff because of the aerosolizing nature of airway interventions. 1 Aerosolization can occur during face mask and supraglottic airway ventilation, intubation, extubation, and cardiopulmonary resuscitation. 2 These activities require increased precautions and containment of viral respiratory particles. It has been demonstrated that a containment system can limit the spray of a significant portion of respiratory particles during a simulated cough or extubation. 3, 4 We applaud innovation of new protective barrier enclosures to protect the laryngoscopist and the room during airway interventions. When selecting such a barrier device, one should consider the importance of access to the airway, containment of aerosolization, time required to set up the device for patient use, and patient tolerance of the device. One should also be cognizant of the cost and necessary time for production and deployment of the device. Some barrier devices, while superior at containing aerosolization, unfortunately restrict the laryngoscopist's hand movements and would require abandoning a laryngoscopy attempt to remove the barrier if it proved too cumbersome. In some cases, it is important to allow a second pair of hands to access the patient's airway to aid in the intubation should it prove difficult (providing lip traction, assisting with the stylet, etc). This may not be possible with some barrier devices. In addition, an ideal device could be set up quickly for patient use and not cause patient agitation, which is particularly important in the pediatric population.

We propose an inexpensive clear plastic drape on bag barrier system made from materials that are ubiquitous in the hospital (Figure) . The barrier can be easily removed even mid-laryngoscopy attempt. This drape www.anesthesia-analgesia.org

Letters to the Editor chest is similar to application of electrocardiogram leads. The total cost of disposable materials for this system is $1.44. There is nothing restricting access to the airway from under the drape, so one could easily assist the laryngoscopist or remove the drape during laryngoscopy if required. After intubation is performed and endotracheal tube secured, the clear plastic drape can be tucked into the drawstring bag, which now contains the contaminated airway space for the duration of the case. The patient could be later extubated under the clear drape, and the drape can then be removed and placed in the drawstring bag along with disposable airway equipment such as the suction catheter and stylet. The drawstring bag is then cinched closed, containing the contaminated drape and head of bed space, and can be disposed. We also recommend sealing used laryngoscopy equipment in a Ziplock Biohazard bag (Thermo Fisher Scientific, Waltham, MA).

This plastic drape on bag system is being trialed at our hospital in the operating rooms and in the emergency department and intensive care unit. In simulated settings at our institution, it provides an added layer of protection from spray of contaminated viral particles for personnel present at airway procedures. The system contains the most contaminated surface surrounding the patient's airway and can easily be disposed of to maintain a cleaner hospital environment. We found that the best use of this device is for nonemergent intubation of a tolerant or sedated patient.

Viral dynamics in mild and severe cases of COVID-19

Centers of Disease Control and Prevention

Barrier enclosure during endotracheal intubation

Clear plastic drapes may be effective at limiting aerosolization and droplet spray during extubation: implications for COVID-19