Preliminary Findings on Control of Dispersion of Aerosols and Droplets During High-Velocity Nasal Insufflation Therapy Using a Simple Surgical Mask: Implications for the High-Flow Nasal Cannula

Scott Leonard¹, Charles W Atwood Jr², Brian K Walsh³, Ronald J DeBellis⁴, George C Dungan⁵, Wayne Strasser⁶, Jessica S Whittle⁷

Affiliations

¹ Department of Science and Innovation, Vapotherm, Inc., Exeter, NH.
² Pulmonary Section, Veterans Administration Pittsburgh Healthcare System, Pittsburgh, PA; Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA.
³ Allied Health Professionals, School of Health Science, Liberty University, Lynchburg, VA.
⁴ Department of Science and Innovation, Vapotherm, Inc., Exeter, NH. Electronic address: rjdebellis@gmail.com.
⁵ Department of Science and Innovation, Vapotherm, Inc., Exeter, NH; Education and Human Services, Canisius College, Buffalo, NY; CIRUS, Sydney, NSW, Australia, Buffalo, NY.
⁶ Department of Mechanical Engineering, Liberty University, Buffalo, NY.
⁷ University of Tennessee College of Medicine, Chattanooga, TN.

PMID: 32247712
PMCID: PMC7130245
DOI: 10.1016/j.chest.2020.03.043

Preliminary Findings on Control of Dispersion of Aerosols and Droplets During High-Velocity Nasal Insufflation Therapy Using a Simple Surgical Mask: Implications for the High-Flow Nasal Cannula

Scott Leonard et al. Chest. 2020 Sep.

. 2020 Sep;158(3):1046-1049.

doi: 10.1016/j.chest.2020.03.043. Epub 2020 Apr 2.

Authors

Scott Leonard¹, Charles W Atwood Jr², Brian K Walsh³, Ronald J DeBellis⁴, George C Dungan⁵, Wayne Strasser⁶, Jessica S Whittle⁷

Affiliations

¹ Department of Science and Innovation, Vapotherm, Inc., Exeter, NH.
² Pulmonary Section, Veterans Administration Pittsburgh Healthcare System, Pittsburgh, PA; Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA.
³ Allied Health Professionals, School of Health Science, Liberty University, Lynchburg, VA.
⁴ Department of Science and Innovation, Vapotherm, Inc., Exeter, NH. Electronic address: rjdebellis@gmail.com.
⁵ Department of Science and Innovation, Vapotherm, Inc., Exeter, NH; Education and Human Services, Canisius College, Buffalo, NY; CIRUS, Sydney, NSW, Australia, Buffalo, NY.
⁶ Department of Mechanical Engineering, Liberty University, Buffalo, NY.
⁷ University of Tennessee College of Medicine, Chattanooga, TN.

PMID: 32247712
PMCID: PMC7130245
DOI: 10.1016/j.chest.2020.03.043

No abstract available

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Figures

**Figure 1**
Velocity map of gas flow for all tested settings. HVNI = high-velocity nasal insufflation.

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Comment in

Improving the Safety of High-Flow Therapies in the Management of Patients With COVID-19.
Madney YM, Esquinas AM, Saeed H, Harb HS, Abdelrahim MEA. Madney YM, et al. Chest. 2020 Oct;158(4):1788-1789. doi: 10.1016/j.chest.2020.06.040. Chest. 2020. PMID: 33036099 Free PMC article. No abstract available.

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References

1. World Health Organization Clinical Management of Severe Acute Respiratory Infection When Novel Coronavirus (2019-nCoV) Infection Is Suspected: Interim Guidance. https://apps.who.int/iris/handle/10665/330893 WHO/nCoV/Clinical/2020.3, March 13, 2020. (accessed April 9, 2020)
1. Alhazzani W, Moller MH, Arabi YM, et al. Surviving Sepsis Campaign: guidelines on the management of critically ill adults with coronavirus disease 2019 (COVID-19). Crit Care Med. In press. - PMC - PubMed
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Preliminary Findings on Control of Dispersion of Aerosols and Droplets During High-Velocity Nasal Insufflation Therapy Using a Simple Surgical Mask: Implications for the High-Flow Nasal Cannula

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Preliminary Findings on Control of Dispersion of Aerosols and Droplets During High-Velocity Nasal Insufflation Therapy Using a Simple Surgical Mask: Implications for the High-Flow Nasal Cannula

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