Table of Contents:
Breathing through a diving snorkel; theory and experiment of air ﬂow resistance and cost of breathing
N.A.M. Schellart, PhD
Physiologic and biochemical rationale for treating COVID-19 patients with hyperbaric oxygen
Co-Chairs, Research Committee: John J. Feldmeier, DO, John P. Kirby, MD, Jay C. Buckey, MD
Research Committee Members: Daphne W. Denham, MD, Jose S. Evangelista, MD, Helen B. Gelly, MD, Nicole P. Harlan, MD, Ziad K. Mirza, MD, Kristi L. Ray, DO, Marc Robins, DO, Davut J. Savaser, MD, Sandra Wainwright, MD
Senior Advisors to Research Committee: Nick Bird, MD 12, Enoch T. Huang, MD, Richard E. Moon, MD, Stephen R. Tom MD, PhD, Lindell K. Weaver, MD
- When a swimmer, for instance a surfaced diver breathes through a snorkel the total breathing resistance will doubtless increase. It is often said that this increase is substantial. The study tried to quantify this increase.
- An increased resistance implies an increased cost of breathing. The study did quantify the increased cost and power of breathing for a large range of pulmonary ventilations for different types of snorkels.
- It is often claimed (the internet, congresses, papers) that using a snorkel results in hypercapnia. The study did evaluate this notion.
- The reader will be able to identify the major signs and symptoms of COVID-19 in severe cases.
- The reader will be able to list the major mechanisms by which hyperbaric oxygen is likely to be therapeutic in severe cases of COVID-19.
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