Pressure and Barotrauma

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.

Pressure and Barotrauma

Changes in barometric (air) or water pressure can cause a body injury called barotrauma. There are several different types of injuries from pressure especially from diving which compresses or expands gas contained in various body structures. Common injuries including:

      • Pulmonary (lung) barotrauma
      • Mask barotrauma (mask squeeze)
      • Ear barotrauma (ear squeeze)
      • Sinus barotrauma (sinus squeeze)
      • Dental barotrauma (tooth squeeze)
      • Eye barotrauma (eye squeeze)
      • Gastrointestinal tract barotrauma (gut squeeze)

Surprisingly, the risk of barotrauma is greatest from the surface to depths of 33 feet (10 meters). Perhaps the most well-known diving barotrauma is the bends, decompression sickness or nitrogen narcosis. The basic recommendation to avoid the bends is ascending slowly from every dive with 30 ft (10 m) per minute being a safe ascent rate.

mystkittsdivebuddy - Decompression SicknessImage source:
https://mystkittsdivebuddy.com/decompression-sickness-what-you-need-to-know/

Ears are a common location for barotrauma caused by water pressure as noted above but also by a change in altitude when flying in an airplane. Common symptoms include:

      • Pain
      • A feeling of stuffy ears
      • Hearing loss
      • Dizziness

Treatments for ear barotrauma target relieving the pressure and include chewing gum and yawning. In some instances, decongestants may also help relieve the pressure.

Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
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Pressure Injury Prevention Day 2017

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.

Pressure Injury Prevention Day

Since 2013, the National Pressure Ulcer Advisory Panel (NPUAP) has striven to increase national awareness to prevent pressure ulcers. An event previously titled the World Wide Pressure Ulcer Prevention Day is now the World Wide Pressure Injury Prevention Day. This year, the World Wide Pressure Injury Prevention Day will be celebrated on November 16, 2017.

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Pressure ulcer injuries or bed sores occur due to bed-ridden and comatose patients lying in the same position for an extended period of time. Sensing the patient’s movement or pressure distribution change is among the techniques that can alert caregivers to assist the patient’s movement and avoid pressure ulcers.

The NPUAP redefined the definition of pressure injuries during the NPUAP 2016 Staging Consensus Conference held April 8-9, 2016 in Rosemont (Chicago), IL.

“A pressure injury is localized damage to the skin and underlying soft tissue usually over a bony prominence or related to a medical or other device. The injury can present as intact skin or an open ulcer and may be painful. The injury occurs as a result of intense and/or prolonged pressure or pressure in combination with shear.”

The stages of a pressure injury are:

  • Stage 1 Pressure Injury: Non-blanchable erythema of intact skin
  • Stage 2 Pressure Injury: Partial-thickness skin loss with exposed dermis
  • Stage 3 Pressure Injury: Full-thickness skin loss
  • Stage 4 Pressure Injury: Full-thickness skin and tissue loss

Pressure injuries also result from the use of medical devices designed and applied for diagnostic or therapeutic purposes.

Comments/Questions?
Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
Email us at [email protected]