About: Exhaled Air Dispersion During Oxygen Delivery Via a Simple Oxygen Mask

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An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Exhaled Air Dispersion During Oxygen Delivery Via a Simple Oxygen Mask
Creator	Hui, David Sung, Joseph Gin, Tony Hall, Stephen Chan, T Chow, Benny Ng, Susanna Matthew, ;
Source	Elsevier; Medline; PMC
abstract	Background Pneumonia viruses such as influenza may potentially spread by airborne transmission. We studied the dispersion of exhaled air through a simple oxygen mask applied to a human patient simulator (HPS) during the delivery of different oxygen flow in a room free of air currents. Methods The HPS represented a 70-kg adult male individual in a semi-sitting position on a hospital bed inclined at 45°. A simple oxygen mask was fitted to the HPS in the normal fashion. The head, neck, and internal airways of the HPS were configured to allow realistic airflow modeling in the airways and around the face. The HPS was programmed to breathe at a respiratory rate of 14 breaths/min with a tidal volume of 0.5 L. Airflow was marked with intrapulmonary smoke for visualization. A leakage jet plume was revealed by a laser light-sheet, and images were captured by high-resolution video. Smoke concentration in the exhaled plume was estimated from the total light intensity scattered by smoke particles. Findings A jet plume of air leaked through the side vents of the simple oxygen mask to lateral distances of 0.2, 0.22, 0.3, and 0.4 m from the sagittal plane during the delivery of oxygen at 4, 6, 8, and 10 L/min, respectively. Coughing could extend the dispersion distance beyond 0.4 m. Conclusion Substantial exposure to exhaled air occurs generally within 0.4 m from patients receiving supplemental oxygen via a simple mask. Health-care workers should take precautions when managing patients with community-acquired pneumonia of unknown etiology that is complicated by respiratory failure.
has issue date	2007-08-31(xsd:dateTime)
bibo:doi	10.1378/chest.07-0636
bibo:pmid	17573505
has license	els-covid
sha1sum (hex)	3d2c1c848225a99f51159739a87d008e33480247
schema:url	https://doi.org/10.1378/chest.07-0636
resource representing a document's title	Exhaled Air Dispersion During Oxygen Delivery Via a Simple Oxygen Mask
has PubMed Central identifier	PMC7094533
has PubMed identifier	17573505
schema:publication	Chest
resource representing a document's body	covid:3d2c1c848225a99f51159739a87d008e33480247#body_text
is schema:about of	named entity 'OXYGEN DELIVERY' named entity 'plume' named entity 'oxygen mask' named entity 'respiratory rate' named entity '2007' named entity 'patient simulator' named entity 'total' named entity 'oxygen' named entity 'fashion' named entity 'Dispersion' named entity 'REVEALED' named entity '0.5 L' named entity 'ROOM' named entity 'WORKERS' named entity 'AIRFLOW' named entity 'FITTED' named entity 'LATERAL' named entity 'METHODS' named entity 'APPLIED' named entity 'MARKED' named entity 'SCATTERED' named entity 'LIGHT INTENSITY' named entity 'JET' named entity 'SITTING POSITION' named entity 'RECEIVING SUPPLEMENTAL OXYGEN' named entity 'ADULT MALE' named entity 'CARE' named entity 'FACE' named entity 'FASHION' named entity 'DISTANCES' named entity 'EXHALED AIR' named entity 'ALLOW' named entity 'VISUALIZATION' named entity '132' named entity 'OXYGEN MASK' named entity 'NORMAL' named entity 'SIMPLE' named entity 'HEALTH' named entity 'DIFFERENT' named entity 'LASER LIGHT' named entity 'HIGH-RESOLUTION' named entity 'UNKNOWN ETIOLOGY' named entity 'FLOW' named entity 'OXYGEN MASK' named entity 'EXHALED AIR' named entity 'DISPERSION' named entity 'DELIVERY' named entity 'ESTIMATED FROM' named entity 'PRECAUTIONS' named entity 'FINDINGS' named entity 'PARTICLES' named entity '0.2' named entity 'CURRENTS' named entity 'PNEUMONIA' named entity 'AIRWAYS' named entity 'SIMPLE' named entity 'SMOKE' named entity 'HPS' named entity 'EXPOSURE TO' named entity 'SIMULATOR ' named entity 'PATIENTS' named entity 'IMAGES' named entity 'MANAGING' named entity 'NECK' named entity 'BACKGROUND' named entity 'EXTEND' named entity 'SHEET' named entity 'CONCLUSION' named entity 'VIDEO' named entity 'PLUME' named entity 'COMPLICATED BY' named entity 'OXYGEN' named entity 'BEYOND' named entity 'TIDAL VOLUME'

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