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May 23, 2013
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Wilderness: Sinus Squeeze (cont.)

Medical Author:
Scott D. Fell, DO, FAAEM
Medical Editor:
Charles Patrick Davis, MD, PhD
Charles Patrick Davis, MD, PhD
Charles Patrick Davis, MD, PhD

Dr. Charles "Pat" Davis, MD, PhD, is a board certified Emergency Medicine doctor who currently practices as a consultant and staff member for hospitals. He has a PhD in Microbiology (UT at Austin), and the MD (Univ. Texas Medical Branch, Galveston). He is a Clinical Professor (retired) in the Division of Emergency Medicine, UT Health Science Center at San Antonio, and has been the Chief of Emergency Medicine at UT Medical Branch and at UTHSCSA with over 250 publications.

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Sinus Squeeze Symptoms

  • Pressure or pain in the forehead or around the teeth, cheeks, or eyes may occur.
  • The nose may bleed.
  • Pressure and pain increase with increased diving depth due to swelling of the lining of the sinus (mucosal lining) and also bleeding into the sinus.
  • When a diver ascends (goes back to the surface) the remaining air in the sinus expands and may force blood or mucus into the nose and mask.
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Read What Your Physician is Reading on Medscape

Dysbarism »

Although dysbarism includes problems associated with high altitude and aerospace endeavors, dysbarism also relates to the increasing pressures of descending under water that are usually experienced in free or assisted dives.

Read More on Medscape Reference »


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