Hyperbaric Oxygen Therapy For
Decompression Sickness
(“The Bends”)

Summary of condition

Decompression sickness (DCS) or “the bends” occurs when injuries are caused by a rapid decrease in atmospheric pressure of water or air. DCS is most commonly associated with scuba diving however it can also occur when astronauts return to the earths surface and hikers descend a high altitude too quickly.

DCS causes gas bubbles (typically Nitrogen) to form in the bodily tissue or blood. This occurs when the external pressure changes too fast for the body to acclimatize, which does not allow nitrogen to properly clear from the blood. It is nicknamed “the bends” because of the extreme joint pain associated with the condition.

Symptoms of DCS include:

  • Intense muscle & joint pain
  • Dizziness
  • Vision problems
  • Fatigue
  • Vertigo
  • Chest and/or stomach pain
  • Weakness

How Hyperbaric Oxygen Therapy Can Help

Fortunately, HBOT continues to be the most effective treatment for decompression sickness. The initial increase in pressure when inside a hyperbaric chamber allows for nitrogen to return to a liquid form, allowing to body to clear the nitrogen properly. This way, when returning to the surface, nitrogen bubbles are not created.


We uphold an atmosphere of professionalism, personal attention, and excellence in care.

  • Having been open since 2008, Under Pressure is the Greater Toronto Area’s Premier Hyperbaric facility.
  • Our highly trained, experienced staff is dedicated to providing the best patient experience
  • State-of-the-art Hyperbaric chambers allow for the most comfortable patient experience while in treatment.
  • Situated in Clarkson Village, steps away from shops, cafes, and restaurants.
  • Easily accessible building with nearby bus/train stops, Handicap accessible, Free parking on site, and close to hotels.

Contact us to learn more about our
HBOT For Decompression Sickness (“The Bends”) and Our Services

We are a patient driven HBOT treatment facility that strives to provide the best patient experience and treatment for a wide range of conditions with the highest level of professionalism.

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*Consultation OHIP covered with medical doctor’s referral

Business Hours

  • MONDAY – FRIDAY 8:00 am to 4:00 pm