Investigate the Aerosol Particle Distribution During Aerosol Generating Procedures

Summary

Massive number of clinicians were infected during the outbreak of COVID-19, which raised the concerns of utilizing "aerosol generating procedures", particularly the use of high-flow nasal cannula, noninvasive ventilation, intubation, bronchoscopy examination and pulmonary function test. There appears to be a trend to avoid those treatments. Instead, aggressive intubation might cause shortage of medical devices and add extra workload. Therefore, we aimed to do a clinical observational study to evaluate the aerosol generation in these procedures and explore the potential measures to reduce the aerosol generation or dispersion.

Conditions

• Transmission, Patient Professional
• High-flow Nasal Cannula

Interventions

DEVICE

High-flow nasal cannula

High-flow nasal cannula is a modality of oxygen device that can provide gas flow meets or exceeds patient inspiratory flow demand (flow can be set at 10-60 L/min), it has been proven to improve oxygenation and reduce intubation rate in hypoxemic patients.

DEVICE

Surgical mask

A procedure mask will be used to cover patient's face after HFNC is initiated.

PROCEDURE

bronchoscopy examination

is a procedure that allows a doctor to examine the inside of the lungs, including the bronchi, which are the main pathways into the lungs. During a bronchoscopy, a doctor inserts a thin tube containing a light and camera into the lungs through the nose or mouth or via artificial airway such as intubation or tracheotomy tube

PROCEDURE

intubation

Intubation is the process of inserting a tube, called an endotracheal tube (ET), through the mouth and then into the airway. This is done so that a patient can be placed on a ventilator to assist with breathing during anesthesia, sedation, or severe illness.

PROCEDURE

tracheostomy

A tracheostomy is a medical procedure - either temporary or permanent - that involves creating an opening in the neck in order to place a tube into a person's windpipe. The tube is inserted through a cut in the neck below the vocal cords. This allows air to enter the lungs.

DEVICE

nebulization

A nebulizer is a piece of medical equipment that a person with asthma or another respiratory condition can use to administer medication directly and quickly to the lungs

DIAGNOSTIC_TEST

Pulmonary function test

Pulmonary function tests (PFTs) are noninvasive tests that show how well the lungs are working. The tests measure lung volume, capacity, rates of flow, and gas exchange.

Sponsors & Collaborators

• Rush University Medical Center

  lead OTHER

Principal Investigators

• Jie Li, PhD · Rush University Medical Center

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2020-05-20

Primary Completion

2020-08-30

Completion

2020-08-30

Countries

• United States

Study Locations