Protective Strategies in a Simulated Model When Performing Percutaneous Tracheostomies in the COVID-19 Era

What Have We Learned About Transmission of COVID-19: Implications for PFT and Pulmonary Procedures

Because of the potential for high aerosol transmission during pulmonary function testing and pulmonary procedures, performing these tests and procedures must be considered carefully during the coronavirus disease-2019 (COVID-19) pandemic. Much has been learned about the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by aerosols and the potential for such transmission through pulmonary function tests and pulmonary procedures, and subsequently preventative practices have been enhanced and developed to reduce the risk of transmission of virus to patients and personnel. This article reviews what is known about the potential for transmission of SARS-CoV-2 during pulmonary function testing and pulmonary procedures and the recommended mitigation steps to prevent the spread of COVID-19.

Development of a Mannequin for Simulation-Based Trials Involving Respiratory Viral Spread During Respiratory Arrest and Cardiopulmonary Arrest Scenarios

During the coronavirus disease 2019 (COVID-19) pandemic, mannequin models have been developed to mimic viral spread using fluorescent particles. These models use contraptions such as a spray gun or an exploding latex balloon to emanate a sudden acceleration of particles, simulating a "cough" reflex. No models have been developed to mimic passive aerosolization of viral particles during a cardiopulmonary arrest simulation. Our novel approach to aerosolization of simulated viral spread allows for a continuous flow of particles, which allows us to maintain components of high-fidelity team-based simulations. Our simulated model emanated GloGerm (Moab, UT) from the respiratory tract using a continuous nebulization chamber. Uniquely, the construction of our apparatus allowed for the ability to perform full, simulated cardiopulmonary resuscitation scenarios (such as chest compressions, bag-mask ventilation, and endotracheal intubation) on a high-fidelity mannequin while visualizing potential contamination spread at the conclusion of the simulation. Positive feedback from users included the ability to visualize particulate contamination after cardiopulmonary resuscitations in the context of personal protective equipment usage and roles in resuscitation (i.e. physician, respiratory therapist, nurse). Negative criticism towards the simulation included the lack of certain high-fidelity feedback markers of the mannequin (auscultating breath sounds and checking pulses) due to the construction of the particle aerosolization mechanism.

Healthcare Personnel Safety During Percutaneous Tracheostomy in Patients With COVID-19: Proof-of-Concept Study

BACKGROUND

Covid-19 pandemic has resulted in the development of severe and persistent respiratory failure requiring long term ventilatory support. This necessitates the need for a reliable and easy to implement tracheostomy protocol given the concern for viral transmission risk to the involved healthcare personnel due to the aerosol generating nature of the procedure. We describe a protocol with unique and novel modifications to the Ciaglia dilatational percutaneous tracheostomy, effectively implemented during the Covid-19 pandemic at our institution.

METHODS

We describe the baseline characteristics of our initial 11 patients who underwent the procedure. Outlined are the healthcare personnel involved and the steps which are organized into 4 phases: planning, pre-procedure, intra-procedure and post-procedure. We have tracked procedural duration, provider safety as well as the development of new complications.

RESULTS

We describe use of this protocol for 11 bedside percutaneous tracheostomies performed on patients with COVID-19. The average total procedural duration as well as incision to tracheostomy tube placement times was 32.6 minutes and 5.8 minutes respectively. All 3 providers performing the tracheostomies remained asymptomatic with negative COVID-19 RT-PCR testing at 3 weeks.

CONCLUSIONS

We report an efficacious and adaptable protocol for elective bedside percutaneous tracheostomies for patients with persistent ventilatory requirements due to COVID-19 with an intent to provide standardized and safe care for the patient and the involved healthcare personnel.